Page 1 2005 ROOM AIR-CONDITIONING TECHNICAL HANDBOOK INVERTER WALL MOUNTED TYPE ROOM AIR-CONDITIONER (Split system, air to air heat pump type) SRK13ZEV-S SRK22ZEV-S WALL MOUNTED TYPE ROOM AIR-CONDITIONER (Split system, air cooled cooling only type) SRK10CES, 13CES SRK19CES, 25CES...
Page 2 TECHNICAL MANUAL...
Page 3 1. INVERTER WALL MOUNTED TYPE ROOM AIR-CONDITIONER Split system, air to air heat pump type 1.1 SRK13ZEV-S ............. 2 1.2 SRK22ZEV-S ............60...
Page 4: Table Of Contents
MODEL SRK13ZEV-S CONTENTS 1.1.1 GENERAL INFORMATION ..............3 (1) Specific features ...................... 3 (2) How to read the model name .................. 3 1.1.2 SELECTION DATA ................... 4 Specifications ......................4 Range of usage & limitations ................5 Exterior dimensions ....................5 Piping system ......................
Page 5: General Information
(1) Specific features The “Mitsubishi Daiya” room air-conditioner: SRK series are of split and wall mounted type and the unit consists of indoor unit and outdoor unit with refrigerant precharged in factory. The indoor unit is composed of room air cooling or heating equipment with opera- tion control switch and the outdoor unit is composed of condensing unit with compressor.
Page 6: Selection Data
1.1.2 SELECTION DATA (1) Specifications Model SRK13ZEV-S (Indoor unit) SRC13ZEV-S (Outdoor unit) (220V) Model SRK13ZEV-S SRC13ZEV-S Item Cooling capacity 4000 (400~5000) Heating capacity 6000 (400~9000) Power source 1 Phase, 220V, 50Hz Cooling input 0.93 (0.105~1.5) Running current (Cooling) Heating input 1.38 (0.095~2.490) Running current (Heating) Inrush current...
Page 7: Range Of Usage & Limitations
Range of usage & limitations Model SRK13ZEV-S Item Indoor return air temperature (Upper, lower limits) Refer to the selection chart Outdoor air temperature (Upper, lower limits) Refrigerant line (one way) length Max. 25m Vertical height difference between Max. 15m (Outdoor unit is higher) outdoor unit and indoor unit Max.
Page 8: Piping System
(b) Outdoor unit Model SRC13ZEV-S Drain holes Unit: mm 286.4 17.5 2-16 × 12 Terminal block 90.6 29.7 Service valve (Liquid) Ground Flare connection ø6.35 (1/4") terminal Service valve (Gas) Flare connection ø9.52 (3/8") (4) Piping system Model SRK13ZEV-S Indoor unit Outdoor unit Cooling cycle Heating cycle...
Page 9: Selection Chart
(5) Selection chart Correct the cooling and heating capacity in accordance with the conditions as follows. The net cooling and heating capacity can be obtained in the following way. Net capacity = Capacity shown on specification ✕ Correction factors as follows. (a) Coefficient of cooling and heating capacity in relation to temperatures Cooling Heating...
Page 11: Outline Of Operation Control By Microcomputer
1.1.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER (1) Operation control function by remote control switch Remote control Model SRK13ZEV-S S Operation section OPERATION MODE select button FAN SPEED button Each time the button is pushed, the indi- Each time the button is pushed, the indi- cator is switched over in turn.
Page 12: Unit On/Off Button
Unit indication section Model SRK13ZEV-S RUN (HOT KEEP) light (green) • Illuminates during operation. • Blinks at air flow stop due to the ‘HOT KEEP’. TIMER light (yellow) Illuminates during TIMER operation. JET/HI POWER light (green) Illuminates during JET/HIGH POWER operation. ION light (green) Illuminates during ION operation.
Page 13: Custom Cord Switching Procedure
(4) Custom cord switching procedure Jumper wire (J2) If two wireless remote controls are installed in one room, in order to prevent wrong operation due to mixed signals, please modify the printed circuit board in the indoor unit’s control box and the remote control using the following procedure. Be sure to modify both boards.
Page 14: Comfortable Timer Setting
(6) Comfortable timer setting If the timer is set at ON when the operation select switch is set at the cooling or heating, or the cooling or heating in auto mode operation is selected, the comfortable timer starts and determines the starting time of next operation based on the initial value of 15 minutes and the relationship between the room temperature at the setting time (temperature of room temperature sensor) and the setting temperature.
Page 15 (c) Details of control at each operation mode (pattern) Fuzzy operation Deviation between the room temperature setting correction temperature and the suction air temperature is calculated in accordance with the fuzzy rule, and used for control of the air capacity and the inverter speed. (ii) Heating thermostat operation ¡...
Page 16 Operation of functional components during defrosting operation Hot keep Indoor unit Corresponding to speed Indoor fan Flashing RUN light Hot keep (Hot keep) Outdoor unit Fuzzy calculated 70 rps Inverter value command 6th speed 6th speed Corresponding Outdoor fan to speed 4-way valve Solenoid valve 120 sec.
Page 17: Outline Of Cooling Operation
(8) Outline of cooling operation (a) Operation of major functional components in cooling mode Item When the inverter When the inverter speed When the inverter speed is 0rps Functional speed is 0rps is other than 0rps due to an anomalous stop components Indoor fan motor Flaps...
Page 18: Outline Of Dehumidifying Operation
(iv) Cooling “JET” operation (JET button on remote control: ON) 1) Detail of operation Model SRK13ZEV-S Item Inverter speed 12~96 rps Air flow Depends on inverter command speed 1 speed up 2) Indoor fan control Depends on inverter The indoor fan is controlled as shown at right in accordance with the command speed difference between the room temperature and setting temperature.
Page 19 Detail of operation Range Range Range Inverter speed Indoor fan motor 3rd speed 1st speed Reheat dehumidifying control Reheat + 1 speed up dehumidifying Outdoor fan motor control Solenoid valve 12 minutes 12 minutes 12 minutes Reheat dehumidifying operation range decision Temperature and humidity check Notes (1) If the operation range switches from a range other than the A range to the A range, the command speed is set at 10 rps for 10 seconds.
Page 20 (iii) Heating oriented dehumidifying Detail of operation Model SRK13ZEV-S Item Inverter command speed 80 rps Indoor unit fan 4th speed Outdoor unit fan 5th speed 4-way valve Solenoid valve Notes (1) When a JET operation signal is received from the remote control, the indoor unit fan’s speed is raised 1 speed. Operation change conditions After 3 minutes have passed since the start of heating oriented dehumidifying, if the room temperature >...
Page 21: Outline Of Automatic Operation
(e) Low temperature dehumidifying protective control (Cooling oriented dehumidifying or reheat dehumidifying) Operating condition: When the room temperature or outdoor temperature becomes lower than 4ºC. (ii) Detail of operation Model SRK13ZEV-S Item Inverter speed 0 rps Indoor fan motor 2nd speed Outdoor fan motor Stop mode 4-way valve...
Page 22: Ion Operation
(12) ION operation (Ion button on the remote control is ON) The negative ion generator operates, generating negative ions. Note (1) The negative ion generator is run and stopped in Operation content accordance with the humidity sensor value. Negative ion generator Stopped Indoor Air conditioner operating...
Page 23 (d) Prevention of continuous low speed operation: For oil return to compressor Operating condition: When command speed of less than 26 rps continues for 60 minutes (ii) Detail of operation: The unit is operated at command speed of 30 rps forcibly for 15 seconds. (The indoor and outdoor fans are not changed.) Note (1) When the command of exceeding 30 rps is directed during 30 rps forced operation, the unit follows it.
Page 24 (k) Cooling overload protective control Operating conditions: When the outdoor unit is operating with the speed of other than 0 rps, or when the outdoor air temperature (detected by Th5) becomes 41ºC or over for 30 seconds continuously. (ii) Detail of operation 1) Outdoor fan is stepped up by 3 speed step.
Page 25 (o) High pressure control Purpose: Prevents anomalous high pressure operation during heating. (ii) Detector: Indoor unit heat exchanger sensor (Th2) (iii) Detail of operation: (Example) Fuzzy 8 rps After lapse of 20 Sec. or over 8 rps After lapse of 20 Sec. or over Lower limit After lapse of 20 Sec.
Page 26 (q) Prevention of continuous low speed operation: For oil return to compressor Operating condition: When inverter command speed of less than 26 rps continues for 60 minutes (ii) Detail of operation: The unit is operated at inverter command speed of 30 rps forcibly for 15 seconds. (The indoor and outdoor fans are not changed.) Note (1) When the inverter command of exceeding 30 rps is directed during 30 rps forced operation, the unit follows it.
Page 27: Application Data
1.1.5 APPLICATION DATA SAFETY PRECAUTIONS ¡ Please read these “Safety Precautions” first then accurately execute the installation work. ¡ Though the precautionary points indicated herein are divided under two headings, WARNING and CAUTION , those points which are related to the strong possibility of an installation done in error resulting in death or serious injury are listed in the WARNING section.
Page 28: Selection Of Location For Installation
(1) Selection of location for installation (a) Indoor unit Where there is no obstructions to the air flow and where the cooled air can be evenly distributed. 6.5 cm Right (ii) A solid place where the unit or the wall will not vibrate. side Left 10 cm...
Page 29: Installation Of Indoor Unit
(2) Installation of indoor unit (a) Installation of installation board Fixing of installation board Look for the inside wall structures (Intersediate support or INSTALLATION SPACE (INDOOR UNIT) (FRONT VIEW) pillar and firaly install the unit after level surface has been Indoor unit Unit : mm checked.)
Page 30 (c) Preparation of indoor unit Mounting of connecting wires 1) Remove the lid. 2) Remove the wiring clamp. 3) Connect the connecting wire securely to the terminal block. Use cables for interconnection wiring to avoid loosening of the wires. Terminal block CENELEC code for cables.
Page 31 [Drain hose changing procedures] 1. Remove the drain hose. 2. Remove the drain cap. 3. Insert the drain cap. 4. Connect the drain hose. ¡Remove the drain hose, ¡Remove it with hand or ¡Insert the drain cap which was removed at ¡I n s e r t t h e d r a i n h o s e making it rotate.
Page 32: Installation Of Outdoor Unit
(3) Installation of outdoor unit (a) Installation of outdoor unit Make sure that sufficient space for installation and service is secured. (ii) Fix the leg sections of the unit on a firm base which will not play. Attach cushion pads, etc. between the unit and the mounting fixtures not to transmit vibration to the building. (iii) Attach a drain elbow, etc.
Page 33: Test Run
(c) Air purge Tighten all flare nuts in the pipings both indoor and outside will so as not to cause leak. (ii) Connect service valve, charge hose, manifold valve and vacuum pump as is illustrated below. (iii) Open manifold valve handle Lo to its full width, and perform vacuum or evacuation. Continue the vacuum or evacuation operation for 15 minutes or more and check to see that the vacuum gauge reads –...
Page 34: Precautions For Wireless Remote Control Installation And Operation
(d) Explain to the customer on the correct usage of the air conditioner in simple layman’s terms. (e) Make sure that drain flows properly. Standard operation data (220V) Model SRK13ZEV-S Item – Cooling High pressure (MPa) Heating 2.4~2.6 Cooling 1.1~1.3 Low pressure (MPa) –...
Page 35: Maintenance Data
1.1.6 MAINTENANCE DATA (1) Troubleshooting procedures for electrical equipment (a) Cautions 1 If you are disassembling and checking an air conditioner, be sure to turn off the power before beginning. When working on indoor units, let the unit sit for about 1 minute after turning off the power before you begin work. When working on an outdoor unit, there may be an electrical charge applied to the main circuit (electrolytic condenser), so begin work only after discharging this electrical charge (to DC 10 V or lower).
Page 36 (d) Troubleshooting procedure (If the air conditioner runs) Confirm the contents of the customer complaint. The cause of the trouble can be specifically identified. Eliminate the cause of the trouble and perform an Check the self-diagnosis display. operation check. See page 35. Identify the faulty component by using the check procedure corresponding to the content of the trouble.
Page 37 (e) Self-diagnosis table When this air conditioner performs an emergency stop, the reason why the emergency stop occurred is displayed by the flashing of display lights. If the air conditioner is operated using the remote control 3 minutes or more after the emergency stop, the trouble display stops and the air conditioner resumes operation.
Page 38 Inspection procedures corresponding to detail of trouble [Broken sensor wire, Sensor error connector poor connection] Is connector connection good? Correct connection. Is sensor resistance value good? Replace sensor. Replace PCB. N Sensor temperature characteristics N Discharge pipe sensor temperature characteristics (Room temp., indoor unit heat exchanger Temperature (˚C) Resistance (kΩ)
Page 39 [Open phase on compressor output Current cut terminal, compressor lock] Does current cut operate when operating inverter with compressor Defective inverter wire disconnected? Is output voltage applied to all 3 Defective inverter phases of power transistor? Secure space for suction Is there any shortcircuit? and blow out.
Page 40 [Gas shortage, defective discharge Over heat of compressor pipe sensor] Is discharge pipe sensor Connector connection check, resistance resistance value good? value check, replacement of discharge pipe sensor (page 36) Check if there are any Does trouble persist after Is sufficient quantity of refrigerant places where gas is leaking.
Page 41 [Defective fan motor, connector Outdoor fan motor error poor connection, defective PCB] Is connector connection good? Correct connector connection Is DC fan motor resistance value good? * Disconnect the fan motor connector, then investigate t h e D C fa n m o t o r a n d outdoor unit circuit board Replace outdoor fan motor separately.
Page 42 (ii) Outdoor unit Phenomenon Operation Sensor Shortcircuit Broken wire mode Cooling System can be operated normally. System can be operated normally. Heat exchanger sensor Heating Defrosting is not performed. Defrosting is performed for 10 minutes at approx. 45 minutes. Cooling System can be operated normally.
Page 44 N Power transistor inspection procedure [Use a tester with a needle indicator for the inspection. (Do not use a digital tester. Check in the AC 300 volt range.)] (1) If there is a self-diagnosis display, inspect the compressor system (burns, wiring mistakes, etc.) If no problems are found, check the output of the power transistor.
Page 45 How to make sure of remote control Is remote Remote control control normal? defects Replace the display. Again pushing operating switch Is the unit operable with remote Normal control? Abnormality is not Operating the unit? found. Defective remote control Does unit ON/OFF button operates? Note (1) Check method of remote control Press the reset switch of the remote control.
Page 46: Servicing
(2) Servicing (a) Evacuation The evacuation is an procedure to purge impurities..noncondensable gas, air, moisture from the refrigerant equipment by using a vacuum pump. Since the refrigerant R410A is very insoluble in water, even a small amount of moisture left in the refrigerant equipment will freeze, causing what is called water clogging.
Page 47: Refrigerant Piping Installation/Servicing Manual For Air Conditioners Using R410A
1.1.7 REFRIGERANT PIPING INSTALLATION/SERVICING MANUAL FOR AIR CONDITIONERS USING R410A (These materials are extracted from document issued by The Japan Refrigeration and Air Conditioning Industry Association) Outline Refrigerant R410A Adoption of R410A in air conditioners In 1974, it was pointed out that the ozone layer in the upper stratosphere (about 20 ~ 40 km above ground) might have been damaged by the ozone depleting substances such as CFC (chlorofluorocarbon) and HCFC (hydrochlorofluorocarbon).
Page 48: Refrigerant Piping Installation
(iii) Lubricating oils for R410A As the lubricating oils for R22, mineral oils, alkylbenze synthetic oils, etc. have so far been used. As R410A features less solubility with these conventional lubricating oils such as mineral oils, the lubricating oils tend to stay within the refrigeration cycle. As the lubricating oils highly soluble with R410A, ester, ethereal and other synthetic oils are available.
Page 49 (ii) Joints For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants. 1) Flare joints Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm. In such a case, socket joints can be used.
Page 50 4) Flare processing øD Make certain that a clamp bar and copper pipe have been cleaned. By means of the clamp bar, perform the flare processing correctly. Use either a flare tool for R410A or conventional flare tool. Flare processing dimensions differ according to the type of flare tool. Be careful. When using a conventional flare tool, be sure to secure “dimension A”...
Page 51 Table 8. Flare and flare nut dimensions for R22 [unit: mm] Dimension (mm) Nominal Outer diameter Thickness Flare nut width diameter (mm) (mm) 6.35 9.52 13.0 13.5 12.70 16.2 16.0 12.9 15.88 19.4 19.0 16.0 (ii) Flare connecting procedures and precautions 1) Make sure that the flare and union portions do not have any scar or dust, etc.
Page 52 (ii) Identification 1) Piping set A copper pipe as piping set for R410A must have a thickness as stated in Table 3 (see on page 46), and, as shown in Tables 5 and 6 (see on page 48), it also differs from R22 in flare processing and flare nut dimensions. So, it is necessary to choose a piping set suitable for R410A.
Page 53 (iii) Flux 1) Reasons for the use of flux • By removing the oxide film and any foreign matter on the metal surface, it assists the flow of brazing filler. • In the brazing process, it prevents the metal surface from being oxidized. •...
Page 54: Installation, Removal And Servicing
Reducing valve Flow meter Stop valve From the nitrogen cylinder Piping Nitrogen gas Rubber plug for sealing Fig.5 Prevention of oxidation during brazing * Cautions during brazing 1 General cautions 1) The brazing strength should be high as required. 2) After operation, airtightness should be kept under a pressurized condition. 3) During brazing do not allow component materials to become damaged due to overheating.
Page 55 Tools exclusive for R410A 1) Gauge manifold • As R410A is characterized by high pressure, conventional tools cannot be used. Table 11. Differences between conventional high/low pressure gauges and those for R410A Conventional gauges Gauges exclusive for R410A High pressure -0.1~3.5MPa -0.1~5.3MPa gauge (red)
Page 56 5) Flare tool (clutch type) • A flare tool for R410A is provided with a large clamp bar receiving hole so that the projection of the copper pipe from the clamp bar can be set at 0~0.5 mm in flare processing, and also features higher spring strength for increased expansion pipe torque.
Page 57 New installation work (when using new refrigerant piping) Air purge by vacuum pump and gas leakage inspection (see Fig. 6) 1) Connect the charge hose to the outdoor unit. 1 2) Connect the charge hose to the vacuum pump adapter. 2 At this time, keep the control valves in the fully closed position.
Page 58 6) After charging liquid refrigerant into the air conditioner by closing the charging valve, stop operation by fully closing the gauge manifold’s valve Lo. 2 5 7) Quickly remove the charge hose from the service port. 6 When stopped halfway, refrigerant being cycled will be released. 8) After securing the caps on the service port and control valve, check the caps’...
Page 59: Refrigerant Recovery
Refrigerant recharging at servicing When it becomes necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps. (For details, see the instruction manual prepared by the equipment manufacturer) 1) Connect the charge hose to the outdoor unit’s service port. 2) Connect the charge hose to the vacuum pump adapter.
Page 60 (iv) Recovering procedures 1) According to the instructions for handling the refrigerant recovering equipment (described in the attached instruction manual), operate the equipment to recover refrigerant. 2) During the operation, take care of the following cautions. 1 Ascertain that the refrigerant recovering equipment is running as required and always monitor the state of operation so that adequate steps can be taken in an emergency.
Page 61 2) Charge hose (pressure resistant hose for fluorocarbon) and packing • It is 1/4B in thickness and available in various lengths, etc. • Use a hose whose pressure resisting performance is higher than 5.2 MPa (52 kg/cm • Generally, a setting fixture is provided only on one end. (iv) Gauge manifold Hose Setting...
Page 62 MODEL SRK22ZEV-S CONTENTS 1.2.1 GENERAL INFORMATION ..............61 Specific features......................61 How to read the model name ..................61 1.2.2 SELECTION DATA ................... 62 Specifications ......................62 Range of usage & limitations ..................63 Exterior dimensions ....................63 Piping system ......................64 Selection chart ......................
Page 63: General Information
(1) Specific features The “Mitsubishi Daiya” room air-conditioner: SRK series are of split and wall mounted type and the unit consists of indoor unit and outdoor unit with refrigerant precharged in factory. The indoor unit is composed of room air cooling or heating equipment with opera- tion control switch and the outdoor unit is composed of condensing unit with compressor.
Page 64: Selection Data
1.2.2 SELECTION DATA (1) Specifications Model SRK22ZEV-S (Indoor unit) SRC22ZEV-S (Outdoor unit) (220V) Model SRK22ZEV-S SRC22ZEV-S Item Cooling capacity 6300 (900~7100) Heating capacity 7100 (900~9000) Power source 1 Phase, 220V, 50Hz Cooling input 1.84 Running current (Cooling) Heating input 1.86 Running current (Heating) Inrush current Cooling: 3.42 Heating: 3.82...
Page 65: Range Of Usage & Limitations
(2) Range of usage & limitations Model SRK22ZEV-S Item Cooling operation: Approximately 18 to 32°C Indoor return air temperature Heating operation: Approximately 15 to 30°C (Upper, lower limits) Outdoor air temperature Cooling operation: Approximately -15 to 46°C (Upper, lower limits) Heating operation: Approximately -15 to 21°C Refrigerant line (one way) length Max.
Page 66: Piping System
(b) Outdoor unit Model SRC22ZEV-S Drain holes Unit: mm 2-ø15 25.8 29.8 87.9 Terminal block Service valve (Liquid) 165.5 25.1 Flare fitting ø6.35 (1/4") Service valve (Gas) Flare fitting ø15.88 (5/8") (4) Piping system Model SRK22ZEV-S Indoor unit Outdoor unit Cooling cycle Heating cycle Outdoor air...
Page 67: Selection Chart
(5) Selection chart Correct the cooling and heating capacity in accordance with the conditions as follows. The net cooling and heating capacity can be obtained in the following way. Net capacity = Capacity shown on specification ✕ Correction factors as follows. (a) Coefficient of cooling and heating capacity in relation to temperatures Cooling Heating...
Page 69: Outline Of Operation Control By Microcomputer
1.2.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER (1) Operation control function by remote control switch (a) Wireless remote control Model SRK22ZEV-S S Operation section FAN SPEED button OPERATION MODE select button Each time the button is pushed, the indi- Each time the button is pushed, the indi- cator is switched over in turn.
Page 70 (b) Wired remote control (Optional parts) The figure below shows the remote control with the cover opened. Note that all the items that may be displayed in the liquid crystal display area are shown in the figure for the sake of explanation. Characters displayed with dots in the liquid crystal display area are abbreviated.
Page 71: Unit On/Off Button
(c) Unit indication section RUN (HOT KEEP) light (green) Model SRK22ZEV-S • Illuminates during operation. • Brinks at air flow stop due to the ‘HOT KEEP’. TIMER light (yellow) Illuminates during TIMER operation. HI POWER light (green) Illuminates during HIGH POWER operation. ECONOMY light (orange) Illuminates during ECONOMY operation.
Page 72: Custom Cord Switching Procedure
(4) Custom cord switching procedure EXTERNAL INPUT If two wireless remote controls are installed in one room, in order to prevent wrong WIRED REMOCON operation due to mixed signals, please modify the printed circuit board in the indoor OPE PERMISSION CUSTOM Jumper wire (J4) unit’s control box and the remote control using the following procedure.
Page 73: Comfortable Timer Setting
(6) Comfortable timer setting If the timer is set at ON when the operation select switch is set at the cooling or heating, or the cooling or heating in auto mode operation is selected, the comfortable timer starts and determines the starting time of next operation based on the initial value of 15 minutes and the relationship between the room temperature at the setting time (temperature of room temperature sensor) and the setting temperature.
Page 74: Outline Of Heating Operation
(8) Outline of heating operation (a) Operation of major functional components in heating mode Item When the inverter When the inverter speed When the inverter speed is 0rps Functional speed is 0rps is other than 0rps due to an anomalous stop components Indoor fan motor Flap and louver...
Page 75 (iii) Hot keep operation If the hot keep operation is selected during the heating operation, the indoor blower is controlled based on the temperature of the indoor unit heat exchanger (detected with Th2, indoor unit heat exchanger sensor) to prevent blowing of cool wind. ¡...
Page 76 (ii) Operation of functional components during defrosting operation indoor unit Hot keep Hot keep Corresponding to speed Indoor fan motor RUN light Flashing (Hot keep) outdoor unit 70rps Fuzzy calculated value Inverter command Corresponding to speed Outdoor fan motor 40sec. 40sec. 4-way valve Defrost 120sec.
Page 77: Outline Of Cooling Operation
(9) Outline of cooling operation (a) Operation of major functional components in Cooling mode Item When the inverter When the inverter speed When the inverter speed is 0rps Functional speed is 0rps is other than 0rps due to an anomalous stop components Indoor fan Flap and louver...
Page 78: Outline Of Dehumidifying Operation
(10) Outline of dehumidifying operation (a) After operating the indoor blower for 20 seconds from immediately after the start of operation, the indoor temperature is checked and, based on the result of check, the cooling oriented dehumidifying or heating oriented dehumidifying is selected. Heating oriented dehumidifying Cooling oriented dehumidifying –3...
Page 79: Outline Of Automatic Operation
(ii) Heating oriented dehumidifying After interrupting the compressor operation for 3 minutes (by the 3-minute timer) following the determination of heating oriented dehumidifying, the unit begins in the heating operation. If the room temperature exceeds the setting temperature by 2ºC or more, the unit checks the room temperature at 5-minute intervals and, depending on the result, determines the range of heating oriented dehumidifying operation within the (M) range.
Page 80: Outline Of Fan Operation
(12) Outline of fan operation (a) Operation of major functional components Fan speed switching Functional AUTO ECONO components Inverter command speed 0rps Indoor fan motor Speed 2 Speed 8 Speed 6 Speed 4 Speed 2 Speed 2 Outdoor fan motor Flap and louver Depend on the flap and louver control (13) Outline of clean operation...
Page 81 Fan operation1 Operation content Inverter command speed (rps) Indoor fan motor 2nd Speed Outdoor fan motor Flap and louver Fully closed/ Center (ii) Cooling operation Operation content Note (1) During cooling operation safety control,frost Inverter command speed (rps) prevention control, and cooling overload Indoor fan motor 2nd Speed protective control are generally not applicable...
Page 82: Economy Operation
(iv) Fan operation2 (v) Standby operation Operation content Operation content Inverter command speed (rps) Inverter command speed (rps) Indoor fan motor Indoor fan motor Outdoor fan motor 2nd Speed Outdoor fan motor Determined by stop mode Flap and louver Fully closed/ Center Flap and louver Fully closed/ Center (15) ECONOMY operation...
Page 83: Operation Permission/Prohibition Control
(17) Operation permission/prohibition control The air conditioner operation is controlled by releasing the jumper wire (J3) on the indoor control board and inputting the external signal into the CnT. (a) The operation mode is switched over between Permission and Prohibition by releasing the jumper wire the indoor control board.
Page 84: Protective Control Function
(18) Protective control function (a) Indoor fan motor protection When the air conditioner is operating and the indoor fan motor is turned ON, if the indoor fan motor has operated at 300 rpm or under for more than 30 seconds, the unit enters first in the stop mode and then stops the entire system. TIMER light illuminates simultaneously and the RUN light flashing 6 times at each 8-second.
Page 85 < II > Operating conditions: When all of the following conditions are met. 1 After the inverter command speed is at a value other than 0 rps for 8 minutes, when the indoor heat exchanger temperature is less than 5°C. 2 When the inverter command speed is more than 20 rps.
Page 86 < II > Operating conditions: When the outdoor air temperature sensor (Th5) is 22ºC or lower continues for 30 seconds while outdoor speed is other than 0rps. (ii) Detail of operation: 1 The lower limit of inverter command speed is set to 20(30)rps and even if the speed becomes lower than 20(30)rps, the speed is kept to 20(30)rps.
Page 87 (h) Heating low outdoor temperature protective control < I > Operating conditions: When the outdoor air temperature sensor (Th5) is 4°C or lower continues for 30 seconds while outdoor speed is other than 0rps. (ii) Detail of operation: When the inverter command speed is less than 20rps, the speed is forcibly set at 20rps. However, when the thermo becomes OFF, the speed is reduced to 0rps.
Page 88 Freezing cycle system protective control Operating conditions: When both of following conditions have continued for more than 5 minutes later than 5 minutes after the start of operation. Inverter command speed is higher than 60 rps During cooling, dehumidifying: Indoor heat exchanger temperature–Room temperature > –4ºC During heating: Indoor heat exchanger temperature–Room temperature <...
Page 89 (q) Power transistor overheat protection Purpose: In order to prevent the power transistor overheating during operation, faulty controller operations, deterioration, damage and so on occurs. (ii) Detail of operation: 1 Power transistor sensor temperature = > 110ºC The compressor is stopped immediately. When the power transistor sensor temperature is less than 80°C, restart. 2 90ºC = <...
Page 90 Compressor lock If the motor for the compressor does not turn 1/12 revolution 0.044 seconds after it has been started, it is determined that a compressor lock has occurred and the compressor is stopped. (u) Outdoor fan motor protection If the outdoor fan motor has operated at 75rpm or under for more than 30 seconds, the inverter and fan motor are stopped. (v) Stop mode Operating conditions: When the operation mode is changed, when the dehumidifying operation is changed from the heating oriented mode to the cooling oriented mode or vice versa, or when the inverter speed...
Page 91: Application Data
1.2.5 APPLICATION DATA SAFETY PRECAUTIONS ¡ Please read these “Safety Precautions” first then accurately execute the installation work. ¡ Though the precautionary points indicated herein are divided under two headings, WARNING and CAUTION , those points which are related to the strong possibility of an installation done in error resulting in death or serious injury are listed in the WARNING section.
Page 92: Selection Of Location For Installation
(1) Selection of location for installation (a) Indoor unit Where there is no obstructions to the air flow and where the cooled air can be evenly distributed. (ii) A solid place where the unit or the wall will not vibrate. 6.5 cm Right (iii) A place where there will be enough space for servicing.
Page 93: Installation Of Indoor Unit
(2) Installation of indoor unit (a) Installation of installation board Fixing of installation board Look for the inside wall structures (Intersediate support or INSTALLATION SPACE (INDOOR UNIT) (FRONT VIEW) pillar and firaly install the unit after level surface has been checked.) Mating mark for level surface Adjustment of the installation board in the horizontal...
Page 94 (c) Preparation of indoor unit Mounting of connecting wires 1) Open the air inlet panel. 2) Remove the lid. 3) Remove the wiring clamp. 4) Connect the connecting wire securely to the terminal block. Use cables for interconnection wiring to avoid loosening of the wires.
Page 95 [Drain hose changing procedures] 1. Remove the drain hose. 2. Remove the drain cap. 3. Insert the drain cap. 4. Connect the drain hose. ¡Remove the drain hose, ¡Remove it with hand or ¡Insert the drain cap which was removed at ¡I n s e r t t h e d r a i n h o s e making it rotate.
Page 96: Installation Of Outdoor Unit
(3) Installation of outdoor unit (a) Installation of outdoor unit Make sure that the unit is stable in installation. Fix the unit to stable base. (ii) When installing the unit at a higher place or where it could be toppled by strong winds, secure the unit firmly with foundation bolts, wire, etc.
Page 97: Test Run
(c) Air purge Tighten all flare nuts in the pipings both indoor and outside will so as not to cause leak. (ii) Connect service valve, charge hose, manifold valve and vacuum pump as is illustrated below. (iii) Open manifold valve handle Lo to its full width, and perform vacuum or evacuation. Continue the vacuum or evacuation operation for 15 minutes or more and check to see that the vacuum gauge reads –...
Page 98 (d) Explain to the customer on the correct usage of the air conditioner in simple layman’s terms. (e) Make sure that drain flows properly. Standard operation data (220V) Model SRK22ZEV-S Item – Cooling High pressure (MPa) Heating 2.5~2.7 Cooling 0.8~1.0 Low pressure (MPa) –...
Page 99: Precautions For Wireless Remote Control Installation And Operation
(6) Precautions for wireless remote control installation and operation (a) Wireless remote control covers the following distances: When operating facing the air conditioner: Notes (1) The remote control is correctly facing the sensing element of the air conditioner when being manipulated.
Page 100: Installation Of Wired Remote Control And Super Link Adapter (Sc-Ad-E) (Optional Parts)
(7) Installation of wired remote control (iv) Cut the jumper attached on the board. and super link adapter (SC-AD-E) • Remove the upper box. Remove the screw, the latch and the band. (Optional parts) (a) Modifying the indoor unit’s printed circuit Screw Band board...
Page 101 (b) Installation of wired remote control (Optional 2) Recessed fitting parts) a) The Electrical box and remote control (shield (i) Selection of installation location wire must be use in case of extension) are Avoid the following locations first embedded. 1) Direct sunlight. 2) Close to heating device.
Page 102 (c) Setting functions using the wired remote control The default settings of this unit's functions are as follows: If you want to charge a setting, follow the procedure found in the installation manual and set to your desired setting. For the method of setting, please refer to the installation manual of a remote control unit. 1 Remote control unit functions ( FUNCTION 2 Indoor unit functions (I/U FUNCTION...
Page 103 (ii) Function setting method Operating guide message 1) Stop the air conditioner Function description: B , Settting: C Function number: A 2) Press the SET and MODE buttons simultaneously for 3 seconds or longer. The screen display will be switched as follows: Confirm Button “...
Page 104 When “I/U FUNCTION ” is selected. 1 The screen display will be switched as follows: “ I/U SELECT” “ SET” “I/U No.00” (blinking) I/U No.00 2 Press either button. Select the indoor unit number that you want to change settings. If only one indoor unit is connected, the indoor unit number will not charge, so please proceed to Step 3.
Page 105 (iv) Changing the remote control’s temperature setting range 1) The temperature setting range of the remote control can be changed. Through remote control button operations, the upper limit and lower limit set temperature values can be changed indi- vidually. During heating operation, the changed upper limit value becomes valid and at times other than during heating operation, (during cooling, dehumidification, auto and fan operation), the changed lower limit value becomes valid.
Page 106 (d) SUPER LINK ADAPTER (SC-AD-E) (i) Functions 1) Transmits the settings from the Super link option to the indoor units. 2) Returns the priority indoor unit data in response to a data request from the Super link option. 3) Inspects the error status of connected indoor units and transmits the inspection codes to the Super link option. 4) A maximum of 16 units can be controlled (if in the same operation mode).
Page 107: Maintenance Data
1.2.6 MAINTENANCE DATA (1) Troubleshooting procedures for electrical equipment (a) Cautions 1 If you are disassembling and checking an air conditioner, be sure to turn off the power before beginning. When working on indoor units, let the unit sit for about 1 minute after turning off the power before you begin work. When working on an outdoor unit, there may be an electrical charge applied to the main circuit (electrolytic condenser), so begin work only after discharging this electrical charge (to DC 10 V or lower).
Page 108 (d) Troubleshooting procedure (If the air conditioner runs) Confirm the contents of the customer complaint. The cause of the trouble can be specifically identified. Eliminate the cause of the trouble and perform an Check the self-diagnosis display. operation check. See pages 107. Is an error code displayed by Using the Service Mode, access the self-diagnosis the self-diagnosis function?
Page 109 (e) Self-diagnosis table When this air conditioner performs an emergency stop, the reason why the emergency stop occurred is displayed by the flashing of display lights. If the air conditioner is operated using the remote control 3 minutes or more after the emergency stop, the trouble display stops and the air conditioner resumes operation.
Page 110 Service mode (Trouble mode access function) This air conditioner is capable of recording error displays and protective stops (service data) which have occurred in the past. If self-diagnosis displays cannot be confirmed, it is possible to get a grasp of the conditions at the time trouble occurred by checking these service data.
Page 111 *3: To count the number of flashes in the service mode, count the number of flashes after the light lights up for 1.5 second initially (start signal). (The time that the light lights up for 1.5 second (start signal) is not counted in the number of flashes.) •...
Page 112 2 Stop data Remote control setting Displayed data Operation Fan speed Temperature switching switching setting Cooling 21°C Displays the reason for the stop (stop code) the previous time when the air conditioner was stopped by protective stop control. 22°C Displays the reason for the stop (stop code) 2 times previous when the air conditioner was stopped by protective stop control. 23°C Displays the reason for the stop (stop code) 3 times previous when the air conditioner was stopped by protective stop control.
Page 113 Number of flashes when in service mode Stop code Error content Error Auto Cause Occurrence conditions TIMER display recovery light light Error code Minor category Major category (10’s digit) (1’s digit) Current Overcharge 4 time 1 time Cooling overload 1 When there is a current safe stop in overload 1 mode safe Compressor lock...
Page 114 Notes (1) The number of flashes when in the Service Mode do not include the 1.5 second period when the lights light up at first (starting signal). (See the example shown below.) • In the case of current safe (heating CT1) (example: stop code “32”) The RUN light (10’s digit) flashes 3 times and the TIMER light (1’s digit) flashes 2 times.
Page 115 (v) Room temperature sensor temperature, indoor heat exchanger sensor temperature, outdoor air temperature sensor temperature, outdoor heat exchanger sensor temperature table Units: °C TIMER light (1’s digit) RUN light (10’s digit) Buzzer sound (minus) (sounds for 0.1 second) (does not sound) * If no data are recorded (error code is normal), the display for each sensor becomes as shown below.
Page 116 (vi) Discharge pipe temperature table Units: °C TIMER light (1’s digit) RUN light (10’s digit) Buzzer sound (minus) (sounds for 0.1 second) (does not sound) * If no data are recorded (error code is normal), the display for each sensor becomes as shown below. Sensor value displayed when the error code is normal Sensor name -64°C...
Page 117 Service data record form Model Customer Date of investigation Machine name Content of complaint Display results Remote control settings Display content Content of displayed data Temperature setting Operation switching Fan speed switching Buzzer (Yes/No.) RUN light (Times) TIMER light (Times) Error code on previous occasion.
Page 118 (g) Inspection procedures corresponding to detail of trouble [Broken sensor wire, Sensor error connector poor connection] Is connector connection good? Correct connection. Is sensor resistance value good? Replace sensor. Replace PCB. N Sensor temperature characteristics N Discharge pipe sensor temperature characteristics (Room temp., indoor unit heat exchanger Temperature (˚C) Resistance (kΩ)
Page 119 [Open phase on compressor output Current cut terminal, compressor lock] Does current cut operate when operating inverter with compressor Defective inverter wire disconnected? Is output voltage applied to all 3 Defective inverter phases of power transistor? Secure space for suction Is there any shortcircuit? and blow out.
Page 120 [Gas shortage, defective discharge Over heat of compressor pipe sensor] Connector connection check, resistance Is discharge pipe sensor resistance value good? value check, replacement of discharge pipe (page 116) sensor Check if there are any Does trouble persist after Is sufficient quantity of refrigerant places where gas is leaking.
Page 121 [Defective fan motor, connector Outdoor fan motor error poor connection, defective PCB] Is connector connection good? Correct connector connection Is DC fan motor resistance value good? * Disconnect the fan motor connector, then investigate t h e D C fa n m o t o r a n d outdoor unit circuit board Replace outdoor fan motor separately.
Page 122 (ii) Outdoor unit Phenomenon Operation Sensor Shortcircuit Broken wire mode Cooling System can be operated normally. System can be operated normally. Heat exchanger sensor Heating Defrosting is not performed. Defrosting is performed for 10 minutes at approx. 45 minutes. Cooling System can be operated normally.
Page 123 Inverter failure diagnosis If the results of the diagnosis in Item (h) indicate that the inverter is defective, perform the following inspection on the inverter. Diagnosis procedure Fuse is defective Is the fuse good? e Replace Varistor is defective Is the varistor good? e Replace Noise filter is defective Is the noise filter good?
Page 125 N Power transistor inspection procedure [Use a tester with a needle indicator for the inspection. (Do not use a digital tester. Check in the AC 300 volt range.)] If there is a self-diagnosis display, inspect the compressor system (burns, wiring mistakes, etc.). If no problems are found, check the output of the power transistor.
Page 126: Servicing
(2) Servicing (a) Evacuation The evacuation is an procedure to purge impurities..noncondensable gas, air, moisture from the refrigerant equipment by using a vacuum pump. Since the refrigerant R410A is very insoluble in water, even a small amount of moisture left in the refrigerant equipment will freeze, causing what is called water clogging.
Page 127 2. WALL MOUNTED TYPE ROOM AIR-CONDITIONER Split system, air cooled cooling only type 2.1 SRK10CES SRK13CES ............126 2.2 SRK19CES SRK25CES ............155...
Page 128 MODELS SRK10CES SRK13CES CONTENTS 2.1.1 GENERAL INFORMATION..............127 (1) Specific features ....................... 127 (2) How to read the model name ................... 127 2.1.2 SELECTION DATA ................. 128 (1) Specifications ........................128 (2) Range of usage & limitations ................... 130 (3) Exterior dimensions ......................130 (4) Piping system ........................
Page 129: General Information
(1) Specific features The “Mitsubishi Daiya” room air-conditioner: SRK series are of split and wall mounted type and the unit consists of indoor unit and outdoor unit with refrigerant precharged in factory. The indoor unit is composed of room air cooling equipment with operation control switch and the outdoor unit is composed of condensing unit with compressor.
Page 130: Selection Data
2.1.2 SELECTION DATA (1) Specifications Model SRK10CES (Indoor unit) SRC10CES (Outdoor unit) Model SRK10CES SRC10CES Item Cooling capacity 2700 Power source 1 Phase, 220V, 50Hz Cooling input 0.803 Running current (Cooling) Inrush current 18.1 COP (In cooling) 3.36 Noise level Exterior dimensions 250 ×...
Page 131 Model SRK13CES (Indoor unit) SRC13CES (Outdoor unit) Model SRK13CES SRC13CES Item Cooling capacity 3800 Power source 1 Phase, 220V, 50Hz Cooling input 1.16 Running current (Cooling) Inrush current 33.2 COP (In cooling) 3.27 Noise level Exterior dimensions 250 × 815 × 249 640 ×...
Page 132: Range Of Usage & Limitations
Voltage at starting Min. 85% of rating Frequency of ON-OFF cycle Max. 10 times/h ON and OFF interval Max. 3 minutes (3) Exterior dimensions (a) Indoor unit Models SRK10CES, 13CES Unit: mm Piping hole right (left) Terminal block 117.5 117.5 216.5 216.5 148.5...
Page 133 (b) Outdoor unit Model SRC10CES Unit: mm Drain holes 264.5 404.5 17.8 2-16 x12 Terminal block 61.9 Service valve (Liquid) 139.3 33.3 Flare connecting ø6.35 (1/4") Service valve (Gas) Flare connecting ø9.52 (3/8") Model SRC13CES 286.4 Drain holes 203.1 Elogated hole 136.9 (2-12 x16) Terminal block...
Page 134: Piping System
(4) Piping system Models SRK10CES, 13CES Indoor unit Outdoor unit Cooling cycle Flare connecting Service valve (Gas) Piping Check joint (Gas) 10 : ø9.52 13 : ø12.7 Accumulator Room temp. Heat Heat sensor exchanger exchanger sensor Heat Compressor exchanger Piping...
Page 135: Selection Chart
(5) Selection chart Correct the cooling capacity in accordance with the conditions as follows. The net cooling capacity can be obtained in the following way. Net capacity = Capacity shown on specification ✕ Correction factors as follows. (a) Coefficient of cooling capacity in relation to temperatures Cooling Applicable range Indoor air W.B.
Page 136: Electrical Data
2.1.3 ELECTRICAL DATA (1) Electrical wiring Model SRK10CES Power source Indoor unit Outdoor unit 1 Phase 220V 50Hz Y/GN 52C4 52C3 HEAT EXCHANGER (3.15A) Wireless R-Amp Display Printed circuit board Color symbol Black Blue Brown Light blue Yellow Orange White...
Page 137 Model SRK13CES Power source Indoor unit Outdoor unit 1 Phase 220V 50Hz Y/GN 52C4 52C3 HEAT EXCHANGER (3.15A) Wireless R-Amp Display Printed circuit board Color symbol Black Blue Brown Light blue Yellow Orange White Yellow/Green Meaning of marks Symbol Parts name Symbol Parts name Capacitor for CM...
Page 138: Outline Of Operation Control By Microcomputer
2.1.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER (1) Operation control function by remote control switch Remote control Models All models S Operation section FAN SPEED button OPERATION MODE select button Each time the button is pushed, the indi- Each time the button is pushed, the indi- cator is switched over in turn.
Page 139: Unit On/Off Button
Unit indication section Models All models RUN light (green) TIMER light (yellow) · Illuminates during operation. Illuminates during TIMER operation. POWER ECONO TIMER HI POWER light (green) ECONOMY light (orange) Illuminates during HI POWER operation. Illuminates during ECONOMY operation. (2) Unit ON/OFF button When the remote control batteries become weak, or if the remote control is lost or malfunctioning, this button may be used to turn the unit on and off.
Page 140: Flap Control
(4) Flap control Control the flap by AIRFLOW button on the wireless remote control. (a) Air scroll The flap will be automatically set to the angle of air flow best to operation. Starting time of operation During cooling and dry operation Stops for approximately 5 seconds in the horizontal position.
Page 141: Outline Of Cooling Operation
(6) Outline of cooling operation (a) Operation of major fanctinal components Item When the compressor When the compressor When the compressor goes Functional command is OFF command is ON OFF due to an anomalous stop. components Indoor fan motor Flaps ON or OFF ON or OFF Stop position control...
Page 142: Outline Of Dehumidifying Operation
(7) Outline of dehumidifying operation (a) Choose the appropriate operation block area by the difference between room temperature and thermo- stat setting temperature as shown below. ¡ Operation block area D Block C Block B Block A Block –2 Room temp. – Setting temp.(deg) (b) Start up operation C.D Block A.B Block...
Page 143: Automatic Operation
(8) Automatic operation (a) Determination of operation mode The blow operation of the indoor fan is carried out at the 1st speed for 20 seconds and the room temperature is checked to determine the operation mode automatically. (When the unit is operated by the turn-on timer, the blow operation is not carried out.) 26ºC <...
Page 144: Protective Control Function
(10) Protective control function (a) Dew condensation prevention control for cooling operation This prevents dew condensation, in the indoor unit, from occurring. Operating condition: when 52C is kept ON for 30 min. after the unit starts operation. (ii) Operation content: forces the indoor fan to change from Speed 1 to Speed 2. (iii) Resetting condition: When 52C is off, or when dew condensation prevention control has been operating continu- ously for 30 minutes.
Page 145: Application Data
2.1.5 APPLICATION DATA SAFETY PRECAUTIONS ¡ Please read these “Safety Precautions” first then accurately execute the installation work. ¡ Though the precautionary points indicated herein are divided under two headings, WARNING and CAUTION , those points which are related to the strong possibility of an installation done in error resulting in death or serious injury are listed in the WARNING section.
Page 146: Selection Of Location For Installation
(1) Selection of location for installation (a) Indoor unit Where there is no obstructions to the air flow and where the cooled air can be evenly distributed. Right (ii) A solid place where the unit or the wall will not vibrate. side Left (iii) A place where there will be enough space for servicing.
Page 147: Installation Of Indoor Unit
(2) Installation of indoor unit (a) Installation of installation board Fixing of installation board Look for the inside wall structures (Intersediate support or INSTALLATION SPACE (INDOOR UNIT) (FRONT VIEW) pillar and firaly install the unit after level surface has been Unit : mm checked.) Speace for...
Page 148 (c) Preparation of indoor unit Mounting of connecting wires 1) Remove the lid (R). 2) Remove the terminal cover. 3) Remove the wiring clamp. 4) Connect the connecting wire securely to the terminal block. Terminal block Use cables for interconnection wiring to avoid loosening of the wires.
Page 149: Installation Of Outdoor Unit
(iv) Installation on indoor unit Install the indoor unit on the mounting plate. Hook the upper part of the indoor unit on the stoppers disposed at the upper part of the mounting plate and lightly push the lower part of the indoor unit so that the unit is fixed in position. ¡...
Page 150 (b) Connection of refrigerant piping Outdoor unit side Indoor unit side ¡ Connect firmly gas and liquid side ¡ Connect firmly gas and liquid side pipings by Torque wrench. pipings by Torque wrench. Spanner (for fixing the piping) Torque wrench ¡...
Page 151: Test Run
(ii) Finishing and fixing Insulation Cover the exterior portion with cov- Refrigerant piping ering tape and shape the piping so Tie up the piping with wrapping tape, and shape it so it will match the contours of the Electrical wiring that it conforms to which the pipe is attached.
Page 152: Maintenance Data
2.1.6 MAINTENANCE DATA (1) Trouble shooting (a) Trouble shooting to be performed prior to exchanging PCB, (Printed circuit board) [Common to all models] All the models described in this chapter are controlled by a microcomputer. When providing maintenance service to customers it is necessary to understand the function controlled by a micro computer thoroughly, so as not to mistakenly identify correct opera- tions as mis-operations.
Page 153 (b) Indication of Self Diagnosis (Indoor unit) Connect of Defect Place of defect Abnormality of heat RUN light is flashing. ¡ Disconnection of heat exchanger sensor. (1 Time flash.) exchanger sensor. TIMER light is RUN light is flashing. Abnormality of room ¡...
Page 154 (d) Trouble Diagnostic Procedures Remove receptacle. Unit malfunctions or Runaway of micro- No change. Replace PCB. Insert it after 3 min. does not stop. computer and operate. Microcomputer rarely Normal operation. mis-starts even during times or power supply or power failure, but, it can sometimes occur during those times.
Page 155: Servicing
How to make sure of remote control Note (1) How to check the remote control. Remote control Is remote defects Press the reset switch of remote control. control normal? (b) If the almost normal if entire display of remote control is shown after 1 indication.
Page 156 (b) Refrigerant charge Discharge refrigerant entirely from the unit and evacuate the unit. Note: Addition of refrigerant without evacuation is unreasonable, because it will result in low charge or overcharge. (ii) Keep the gauge manifold and connect a refrigerant cylinder to the unit. (iii) Record the weight of the refrigerant cylinder on the balance.
Page 157 MODELS SRK19CES SRK25CES CONTENTS 2.2.1 GENERAL INFORMATION ..............156 Specific features ......................156 How to read the model name ................... 156 2.2.2 SELECTION DATA .................. 157 Specifications ......................157 Range of usage & limitations ................... 159 Exterior dimensions ....................159 Piping system ......................
Page 158: General Information
(1) Specific features The “Mitsubishi Daiya” room air-conditioner: SRK series are of split and wall mounted type and the unit consists of indoor unit and outdoor unit with refrigerant precharged in factory. The indoor unit is composed of room air cooling equipment with operation control switch and the outdoor unit is composed of condensing unit with compressor.
Page 159: Selection Data
2.2.2 SELECTION DATA (1) Specifications Model SRK19CES (Indoor unit) SRC19CES (Outdoor unit) (220V) Model SRK19CES SRC19CES Item Cooling capacity 5600 Power source 1 Phase, 220V, 50Hz Cooling input 1.63 Running current (Cooling) Inrush current Cooling: 3.44 Sound level Hi 45, Me 41, Lo 38 Noise level Cooling Power level...
Page 160 Model SRK25CES (Indoor unit) SRC25CES (Outdoor unit) (220V) Model SRK25CES SRC25CES Item Cooling capacity 7000 Power source 1 Phase, 220V, 50Hz Cooling input 2.08 Running current (Cooling) 10.4 Inrush current Cooling: 3.37 Sound level Hi 46, Me 42, Lo 39 Noise level Cooling Power level Exterior dimensions...
Page 161: Range Of Usage & Limitations
(2) Range of usage & limitations Models All models Item Indoor return air temperature (Upper, lower limits) Refer to the selection chart Outdoor air temperature (Upper, lower limits) Refrigerant line (one way) length Max. 25m Vertical height difference between Max. 15m outdoor unit and indoor unit Rating ±...
Page 162 (b) Outdoor unit Model SRC19CES 286.4 Drain holes Unit: mm 203.1 136.9 Elogated hole (2-12 x16) Terminal block 34.6 Ground terminal Service valve (Liquid) ø6.35 (1/4'') Service valve (Gas) ø15.88 (5/8'') Model SRC25CES Unit: mm Drain holes 2-ø15 25.8 29.8 87.9 Terminal block Service valve (Liquid)
Page 163: Piping System
(4) Piping system Model SRK19CES Indoor unit Outdoor unit Cooling cycle Outdoor air Flare connecting Service valve temp. sensor (Gas) Piping Muffler (Gas) Check joint ø 15.88 Humidity sensor accumulator Room temp. Heat Discharge pipe Heat sensor exchanger temp. sensor exchanger sensor Heat...
Page 164: Selection Chart
(5) Selection chart Correct the cooling capacity in accordance with the conditions as follows. The net cooling capacity can be obtained in the following way. Net capacity = Capacity shown on specification ✕ Correction factors as follows. (a) Coefficient of cooling capacity in relation to temperatures Cooling Applicable range Indoor air W.B.
Page 167: Outline Of Operation Control By Microcomputer
2.2.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER (1) Operation control function by remote control switch (a) Wireless remote control Models All models S Operation section FAN SPEED button OPERATION MODE select button Each time the button is pushed, the indi- Each time the button is pushed, the indi- cator is switched over in turn.
Page 168 (b) Wired remote control (Optional parts) The figure below shows the remote control with the cover opened. Note that all the items that may be displayed in the liquid crystal display area are shown in the figure for the sake of explanation. Characters displayed with dots in the liquid crystal display area are abbreviated.
Page 169: Unit On/Off Button
(c) Unit indication section RUN light (green) Models All models • Illuminates during operation. TIMER light (yellow) Illuminates during TIMER operation. HI POWER light (green) Illuminates during HIGH POWER operation. ECONOMY light (orange) Illuminates during ECONOMY operation. (2) Unit ON/OFF button When the remote control batteries become weak, or if the remote control is lost or malfunctioning, this button may be used to turn the unit on and off.
Page 170: Custom Cord Switching Procedure
(4) Custom cord switching procedure If two wireless remote controls are installed in one room, in order to prevent wrong EXTERNAL INPUT WIRED REMOCON operation due to mixed signals, please modify the printed circuit board in the indoor OPE PERMISSION CUSTOM Jumper wire (J4) unit’s control box and the remote control using the following procedure.
Page 171: Comfortable Timer Setting
(6) Comfortable timer setting If the timer is set at ON when the operation select switch is set at the cooling, or the cooling in auto mode operation is selected, the comfortable timer starts and determines the starting time of next operation based on the initial value of 15 minutes and the relationship between the room temperature at the setting time (temperature of room temperature sensor) and the setting temperature.
Page 172: Outline Of Cooling Operation
(8) Outline of cooling operation (a) Operation of major functional components Item When the compressor When the compressor When the compressor goes Functional command is OFF command is ON OFF due to an anomalous stop. components Indoor fan motor Flap and louver ON or OFF ON or OFF Stop position control...
Page 173: Outline Of Dehumidifying Operation
(9) Outline of dehumidifying operation (a) Choose the appropriate operation block area by the difference between room temperature and thermostat setting temperature as shown below. ¡ Operation block area D Block C Block B Block A Block –2 Room temp. – Setting temp.(deg) (b) Start up operation C.D Block A.B Block...
Page 174: Outline Of Automatic Operation
(10) Outline of automatic operation (a) Determination of operation mode The unit checks the room temperature and the outdoor air temperature after operating the indoor and outdoor blowers for 20 seconds, determines the operation mode and the room temperature setting correction value, and then begins in the automatic operation.
Page 175: Regulation Of Outdoor Air Flow
(12) Regulation of outdoor air flow The fan operates as follows according to the outdoor air temperature. S SRK19CES S SRK25CES Cooling, thermaldry Cooling, thermaldry 3rd speed 2nd speed 2nd speed 1st speed 1st speed Outdoor air temp. (˚C) Outdoor air temp. (˚C) (13) Stop mode When the complete stop command given, when When stoppage occurs due to thermostat operation,...
Page 176: External Control (Remote Display)/Control Of Input Signal
(14) External control (remote display)/control of input signal Make sure to connect the standard remote control unit. Control of input signal is not available without the standard remote control unit. (a) External control (remote display) output Following output connectors (CNT) are provided on the printed circuit board of indoor unit. Operation output: Power to engage DC 12V relay (provided by the customer) is outputted during operation.
Page 177: Operation Permission/Prohibition Control
(15) Operation permission/prohibition control The air conditioner operation is controlled by releasing the jumper wire (J3) on the indoor control board and inputting the external signal into the CnT. (a) The operation mode is switched over between Permission and Prohibition by releasing the jumper wire (J3) on the indoor control board.
Page 178 (b) Dew condensation prevention control [Cooling (including automatic), cooling oriented dehumidifying operation] Operating condition: When the following conditions are met after 5 minutes or more of continuous operation after operation starts. Prevention control • The humidity sensor value is 68% or higher (ii) Operation contents Reset 1) Command of the electronic expansion valve.
Page 179 (g) Serial signal transmission error protection Purpose: Prevents malfunction resulting from error on the indoor ↔ outdoor signals. (ii) Detail of operation: If the compressor is operating and a serial signal cannot be received from the indoor control with outdoor control having serial signals continuously for 1 minute and 55 seconds, the compressor is stopped.
Page 180: Application Data
2.2.5 APPLICATION DATA SAFETY PRECAUTIONS ¡ Please read these “Safety Precautions” first then accurately execute the installation work. ¡ Though the precautionary points indicated herein are divided under two headings, WARNING and CAUTION , those points which are related to the strong possibility of an installation done in error resulting in death or serious injury are listed in the WARNING section.
Page 181: Selection Of Location For Installation
(1) Selection of location for installation (a) Indoor unit Where there is no obstructions to the air flow and where the cooled air can be evenly distributed. (ii) A solid place where the unit or the wall will not vibrate. 6.5 cm Right side...
Page 182: Installation Of Indoor Unit
(2) Installation of indoor unit (a) Installation of installation board Fixing of installation board Look for the inside wall structures (Intersediate support or INSTALLATION SPACE (INDOOR UNIT) (FRONT VIEW) pillar and firaly install the unit after level surface has been checked.) Unit: mm Mating mark for level surface...
Page 183 (c) Preparation of indoor unit Mounting of connecting wires 1) Open the air inlet panel. 2) Remove the lid. 3) Remove the wiring clamp. 4) Connect the connecting wire securely to the terminal block. Use cables for interconnection wiring to avoid loosening of the wires.
Page 184 [Drain hose changing procedures] 1. Remove the drain hose. 2. Remove the drain cap. 3. Insert the drain cap. 4. Connect the drain hose. ¡Remove the drain hose, ¡Remove it with hand or ¡Insert the drain cap which was removed at ¡I n s e r t t h e d r a i n h o s e making it rotate.
Page 185: Installation Of Outdoor Unit
(3) Installation of outdoor unit (a) Installation of outdoor unit Make sure that the unit is stable in installation. Fix the unit to stable base. (ii) When installing the unit at a higher place or where it could be toppled by strong winds, secure the unit firmly with foundation bolts, wire, etc.
Page 186 (c) Air purge Tighten all flare nuts in the pipings both indoor and outside will so as not to cause leak. (ii) Connect service valve, charge hose, manifold valve and vacuum pump as is illustrated below. (iii) Open manifold valve handle Lo to its full width, and perform vacuum or evacuation. Continue the vacuum or evacuation operation for 15 minutes or more and check to see that the vacuum gauge reads –...
Page 187: Test Run
(5) Test run (a) Conduct trial run after confirming that there is no gas leaks. (b) When conducting trial run set the remote control thermostat to continuous operation position. However when the power source is cut off or when the unit’s operation switch is turned off or was turned to fan operation position, the unit will not go into operation in order to protect the compressor.
Page 188: Installation Of Wired Remote Control And Super Link Adapter (Sc-Ad-E) (Optional Parts)
(7) Installation of wired remote control (iv) Cut the jumper attached on the board. and super link adapter (SC-AD-E) • Remove the upper box. Remove the screw, the latch and the band. (Optional parts) (a) Modifying the indoor unit’s printed circuit Screw Band board...
Page 189 (b) Installation of wired remote control (Optional 2) Recessed fitting parts) a) The Electrical box and remote control (shield (i) Selection of installation location wire must be use in case of extension) are Avoid the following locations first embedded. 1) Direct sunlight. 2) Close to heating device.
Page 190 (c) Setting functions using the wired remote control The default settings of this unit's functions are as follows: If you want to charge a setting, follow the procedure found in the installation manual and set to your desired setting. For the method of setting, please refer to the installation manual of a remote control unit. 1 Remote control unit functions ( FUNCTION 2 Indoor unit functions (I/U FUNCTION...
Page 191 (ii) Function setting method Operating guide message 1) Stop the air conditioner Function description: B , Settting: C Function number: A 2) Press the SET and MODE buttons simultaneously for 3 seconds or longer. The screen display will be switched as follows: Confirm Button “...
Page 192 When “I/U FUNCTION ” is selected. 1 The screen display will be switched as follows: “ I/U SELECT” “ SET” “I/U No.00” (blinking) I/U No.00 2 Press either button. Select the indoor unit number that you want to change settings. If only one indoor unit is connected, the indoor unit number will not charge, so please proceed to Step 3.
Page 193 (iv) Changing the remote control’s temperature setting range 1) The temperature setting range of the remote control can be changed. Through remote control button operations, the upper limit and lower limit set temperature values can be changed indi- vidually. During heating operation, the changed upper limit value becomes valid and at times other than during heating operation, (during cooling, dehumidification, auto and fan operation), the changed lower limit value becomes valid.
Page 194 (d) SUPER LINK ADAPTER (SC-AD-E) (i) Functions 1) Transmits the settings from the Super link option to the indoor units. 2) Returns the priority indoor unit data in response to a data request from the Super link option. 3) Inspects the error status of connected indoor units and transmits the inspection codes to the Super link option. 4) A maximum of 16 units can be controlled (if in the same operation mode).
Page 195: Maintenance Data
2.2.6 MAINTENANCE DATA (1) Troubleshooting procedures for electrical equipment (a) Cautions 1 If you are disassembling and checking an air conditioner, be sure to turn off the power before beginning. When working on indoor units, let the unit sit for about 1 minute after turning off the power before you begin work. When working on an outdoor unit, there may be an electrical charge applied to the main circuit (electrolytic condenser), so begin work only after discharging this electrical charge (to DC 10 V or lower).
Page 196 (d) Troubleshooting procedure (If the air conditioner runs) Confirm the contents of the customer complaint. The cause of the trouble can be specifically identified. Eliminate the cause of the trouble and perform an Check the self-diagnosis display. operation check. See page 193. Identify the faulty component by using the check procedure corresponding to the content of the trouble.
Page 197 (e) Self-diagnosis table When this air conditioner performs an emergency stop, the reason why the emergency stop occurred is displayed by the flashing of display lights. If the air conditioner is operated using the remote control 3 minutes or more after the emergency stop, the trouble display stops and the air conditioner resumes operation.
Page 198 Inspection procedures corresponding to detail of trouble [Broken sensor wire, Sensor error connector poor connection] Is connector connection good? Correct connection. Is sensor resistance value good? Replace sensor. Replace PCB. N Sensor temperature characteristics N Discharge pipe sensor temperature characteristics (Room temp., indoor unit heat exchanger Temperature (˚C) Resistance (kΩ)
Page 199 [Gas shortage, defective discharge Over heat of compressor pipe sensor] Connector connection check, resistance Is discharge pipe sensor resistance value good? value check, replacement of discharge pipe (page 196) sensor Check if there are any Does trouble persist after Is sufficient quantity of refrigerant places where gas is leaking.
Page 200 [Compressor malfunction of Abnormality of outdoor unit insufficient gas (refrigerant)] Replace capacitor for compressor. Does compressor operation? Is capacitor for compressor normal? Is connector for compressor connection Correct connection good? Replace compressor. Is heat exchanger sensor resistance Replace heat exchanger sensor value good? Check if there are any places where Is refrigerant amount normal?
Page 201 (h) Checking the indoor electrical equipment Indoor unit circuit board check procedure 1) Press the unit’s ON/OFF button for 5 seconds or longer (a beep which indicates receiving will be emitted). Then check the following items. 1 The indoor unit’s fan motor runs. 2 The run light lights up.
Page 202 How to make sure of remote control Is remote Remote control control normal? defects Replace the display. Again pushing operating switch Is the unit operable with remote Normal control? Abnormality is not Operating the unit? found. Defective remote control Does unit ON/OFF button operates? Note (1) Check method of remote control Press the reset switch of the remote control.
Page 203: Servicing
(2) Servicing (a) Evacuation The evacuation is an procedure to purge impurities..noncondensable gas, air, moisture from the refrigerant equipment by using a vacuum pump. Since the refrigerant R22 is very insoluble in water, even a small amount of moisture left in the refrigerant equipment will freeze, causing what is called water clogging.
Page 204 MEMO...
Page 205: Parts List
PARTS LIST INDOOR UNIT SRK13ZEV-S , SRK22ZEV-S SRK1OCES , SRK13CES SRK19CES , SRK25CES OUTDOOR UNIT SRC13ZEV-S , SRK22ZEV-S SRC1OCES , SRK13CES SRC19CES , SRK25CES...
Page 206 PANEL & FAN ASSY CRAE0170 - 204 -...
Page 207 SRK13ZEV-S END ITEM NO. : RMA002F004 Recommendable Purchased Q'ty Part NO. Part Name RE.Q Note 1000 1-4 RKT102A750B PANEL ASSY,FRONT 1 RKT122A600B PANEL,FRONT 2 RKT435A600C PANEL AIR, INLET 3 RKT435A601 GRILLE, AIR IN (TOP) 4 RKT437A600 FILTER,AIR 5 RKT129A607 HOLDER,FILTER 6 RKT132A500B LID ASSY 7-20 RKT435A602C...
Page 208 HEAT EXCH. & CONTROL CRAE0171 - 206 -...
Page 209 SRK13ZEV-S Recommendable Purchased Q'ty Part NO. Part Name RE.Q Note 1000 1-9 RKT301A506D HEAT EXCH ASSY 2 RKT315D500 HEADER ASSY 3 RKT321A501A PIPE ASSY 4 RKT315A500 DISTRIBUTOR ASSY 5 RKT129A401 BRACKET(L) 6-8 RKT321A500A PIPE ASSY 7 SSA323F082 UNION, SOLDER For gas 8 SSA323F082A UNION(SLD) For liquid...
Page 210 PANEL & FAN ASSY CRAE0167 - 208 -...
Page 211 SRK22ZEV-S END ITEM NO. : RWA002F045D Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-6 RKW102A200D PANEL ASSY,FRONT 1 RKW122A200 PANEL,FRONT 2 RKW435A200D PANEL ASSY AIR IN 3 RKW437A200 FILTER,AIR 4 RKW129A213 HOLDER,FILTER 5 RKW133A202 FILM,CONCEAL 6 RKW129A214 7 RKW132A203 LID(TERMINAL) 8-32 RKW435A202...
Page 212 SRK22ZEV-S Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 38 RKW129A202 BRACKET MOTOR ( L ) 39 RKS504A601C HARNESS ASSY FOR FAN MOTOR 40 RKW032A200 PLATE,INSTALLATION 41 RKW129A212 COVER(PIPE) 42 RKW132A200 LID(R) 43 RKW132A201 LID(L) 44 SSA913A007A SCREW,TAP - 210 -...
Page 213 - 211 -...
Page 214 HEAT EXCH. & CONTROL CRAE0168 - 212 -...
Page 215 SRK22ZEV-S Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-9 RKW301A200A HEAT EXCH ASSY 2 RKW315D204 HEADER ASSY 3 RKW129A200 BRACKET(L) 4 RKW315A203 DISTRIBUTOR ASSY 5-7 RKW321A220 PIPE ASSY 6 SSA323F012F UNION, SOLDER For gas 7 SSA323F082A UNION(SLD) For liquid 8 RKW129A219 PLATE,ASSY BAFFLE ( R )
Page 216 PANEL & FAN ASSY CRAE0165 - 214 - ・...
Page 217 SRK10CES END ITEM NO. : RMA002F005 Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-4 RMA102A003D PANEL ASSY,FRONT 1 RKV122A100F PANEL,FRONT 2 RKV435A100C PANEL, AIR INLET 3 RKV129A007 4 RKV437A001 FILTER,AIR 5-18 RKV435A101 GRILLE ASSY,AIR OUT 5 RKV435A003...
Page 218 HEAT EXCH. & CONTROL CRAE0141 - 216 - ・...
Page 219 SRK10CES Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RKV301A500M HEAT EXCH ASSY 2 RKV315D501 HEADER ASSY 3 RMA315A002 DISTRIBUTOR ASSY 4 RKV129A001 BRACKET(L) 5 RKV321A513 PIPE ASSY 6 SSA323F082 UNION(SLD) For gas 7 SSA323F082A UNION(SLD) For liquid...
Page 220 PANEL & FAN ASSY CRAE0165 - 218 - ・...
Page 221 SRK13CES END ITEM NO. : RMA002F005A Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-4 RMA102A003D PANEL ASSY,FRONT 1 RKV122A100F PANEL,FRONT 2 RKV435A100C PANEL, AIR INLET 3 RKV129A007 4 RKV437A001 FILTER,AIR 5-18 RKV435A101 GRILLE ASSY,AIR OUT 5 RKV435A003 GRILLE,AIR OUTLET 6 RKV436A100 FLAP(A)
Page 222 HEAT EXCH. & CONTROL CRAE0141 - 220 - ・...
Page 223 SRK13CES Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RKV301A500J HEAT EXCH ASSY 2 RKV315D501 HEADER ASSY 3 RMA315A002 DISTRIBUTOR ASSY 4 RKV129A001 BRACKET(L) 5 RKV321A008 PIPE ASSY 6 SSA323F082B UNION(SLD) For gas 7 SSA323F082A UNION(SLD) For liquid 8 RKV129A004 PLATE,BAFFLE 9 RKV142A500...
Page 224 PANEL & FAN ASSY CRAE0167 - 222 -...
Page 225 SRK19CES END ITEM NO. : RWA002F047A Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-6 RKW102A200C PANEL ASSY,FRONT 1 RKW122A200 PANEL,FRONT 2 RKW435A200C PANEL ASSY 3 RKW437A200 FILTER,AIR 4 RKW129A213 HOLDER,FILTER 5 RKW133A202 FILM,CONCEAL 6 RKW129A214 7 RKW132A203 LID(TERMINAL) 8-32 RKW435A202 GRILLE ASSY,AIR OUT...
Page 226 SRK19CES Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 38 RKW129A202 BRACKET MOTOR ( L ) 39 RKS504A601C HARNESS ASSY FOR FAN MOTOR 40 RKW032A200 PLATE,INSTALLATION 41 RKW129A212 COVER(PIPE) 42 RKW132A200 LID(R) 43 RKW132A201 LID(L) 44 SSA913A007A SCREW,TAP - 224 -...
Page 227 - 225 -...
Page 228 HEAT EXCH. & CONTROL CRAE0166 - 226 -...
Page 229 SRK19CES Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-9 RKW301A202A HEAT EXCH ASSY 2 RKW315D203 HEADER ASSY 3 RKW129A200 BRACKET(L) 4 RKW315A202 DISTRIBUTOR ASSY 5-7 RKW321A257A PIPE ASSY 6 SSA323F012F UNION, SOLDER For gas 7 SSA323F082A UNION(SLD) For liquid 8 RKW129A219 PLATE,ASSY BAFFLE ( R )
Page 230 PANEL & FAN ASSY CRAE0167 - 228 -...
Page 231 SRK25CES END ITEM NO. : RWA002F047D Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-6 RKW102A200C PANEL ASSY,FRONT 1 RKW122A200 PANEL,FRONT 2 RKW435A200C PANEL ASSY 3 RKW437A200 FILTER,AIR 4 RKW129A213 HOLDER, FILTER 5 RKW133A202 FILM,CONCEAL 6 RKW129A214 7 RKW132A203 LID(TERMINAL) 8-32 RKW435A202 GRILLE ASSY,AIR OUT...
Page 232 SRK25CES Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 38 RKW129A202 BRACKET MOTOR ( L ) 39 RKS504A601C HARNESS ASSY FOR FAN MOTOR 40 RKW032A200 PLATE,INSTALLATION 41 RKW129A212 COVER(PIPE) 42 RKW132A200 LID(R) 43 RKW132A201 LID(L) 44 SSA913A007A SCREW,TAP - 230 -...
Page 233 - 231 -...
Page 234 HEAT EXCH. & CONTROL CRAE0166 - 232 -...
Page 235 SRK25CES Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-9 RKW301A202 HEAT EXCH ASSY 2 RKW315D203 HEADER ASSY 3 RKW129A200 BRACKET(L) 4 RKW315A202 DISTRIBUTOR ASSY 5-7 RKW321A257 PIPE ASSY 6 SSA323F012F UNION, SOLDER For gas 7 SSA323F082A UNION(SLD) For liquid 8 RKW129A219 PLATE,ASSY BAFFLE ( R )
Page 236 PANEL & FAN ASSY CRBE0226 - 234 -...
Page 237 SRC13ZEV-S END ITEM NO. : RMC003F006 Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCN122A001A PANEL,FRONT 2 RCN125A001 PANEL, REAR 3 RCN124A001A PANEL,TOP 4 RCN132A002 PANEL ASSY SERVICE 5 RCN435A001A GRILLE,AIR OUTLET 6 RCN116A002 BRACKET,MOTOR 7 SSA512T061 MOTOR,DC 8 RCN141A00108 PLATE 9 SSA431B232...
Page 238 HEAT EXCH. & CONTROL （GAS）（LIQ.） 27・28・29 CONTROL ASSY CRBE0229 - 236 -...
Page 239 SRC13ZEV-S Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCN301A200D HEAT EXCH ASSY(AIR) 2 RCM304A304 PIPE ASSY 3 SSA382C078 VALVE,S(4WAY) 4-8 RCN304A602 PIPING ASSY (EXPAN) 5 RCN315B001 CAPILLARY,SUB 6 SSA387F031 VALVE,BODY(EXP) 7 SSA325A036 PIPE,SHELL 8 SSA357A005A STRAINER 9 RCN116A001 BRACKET(VALVE) 10 RCN381A002...
Page 240 PANEL & FAN ASSY CRBE0207 - 238 -...
Page 241 SRC22ZEV-S END ITEM NO. : RWC003F048D Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCR122A001 PANEL ASSY, FRONT 2 RCR125A002 PANEL ASSY, REAR 3 RCR124A002 PANEL,ASSY TOP 4 RCR122A004 PANEL ASSY SERVICE 5 RCR132A001 COVER,FRONT 6 RCR115A001 SUPPORT,CORNER 7 RCR435A001 GRILLE,AIR OUTLET...
Page 242 HEAT EXCH. & CONTROL OUTDOOR TEMP SENSOR (TH2) DISCHARGE PIPE SENSOR (TH3) HEAT EXCH. SENSOR (TH1) （LIQ.）（GAS） CONTROL ASSY CRBE0208 - 240 -...
Page 243 SRC22ZEV-S Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-4 RCR301A001 HEAT EXCH ASSY(AIR) 2 RCR321A046 PIPE ASSY 3⋅4 RCR321A056 PIPE ASSY 3 RCR315B008 CAPILLARY 4 RCR315B009 CAPILLARY 5 SSA382C078 VALVE, S(4WAY) 6 RCR116A003A BRACKET(VALVE) 7 RCR381A003 VALVE,SERVICE(1/4" ) 2 LIQ.
Page 244 PANEL & FAN ASSY CRBE0228 - 242 -...
Page 245 SRC10CES END ITEM NO. : RMC003F007 Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCP122A500 PANEL ASSY,FRONT 2 RCP123A002 PANEL ASSY,SIDE 3 RCP124A500 PANEL ASSY,TOP 4 RCP132A002 PANEL,SERVICE 5 RCP435A002A GRILLE ASSY,AIR OUT 6 SSA944B036 HANDLE 7 RCP116A001 BRACKET,MOTOR 8 SSA511C061C MOTOR,AC...
Page 246 HEAT EXCH. & CONTROL （GAS）（LIQ.） 18・19 CONTROL ASSY CRBE0190 - 244 -...
Page 247 SRC10CES Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCP301A001H HEAT EXCH ASSY 2 RCP321A001 PIPE 3 RCP321A035A PIPE 4-5 RMC304A002 PIPING ASSY 4 RMC315B001 CAPILLARY 5 RMC315B005 CAPILLARY,SUB 6 RCK116A002 BRACKET(VALVE) 7 RMC381A001 VALVE,SERVICE(1/4" ) 2 For liquid 8 RMC381A002 VALVE,SERVICE(3/8"...
Page 248 PANEL & FAN ASSY CRBE0227 - 246 -...
Page 249 SRC13CES END ITEM NO. : RMC003F008 Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RWC122A003 PANEL,FRONT 2 RWC123A005 PANEL ASSY,SIDE(R) 3 RWC123A002 PANEL,SIDE(L) 4 RWC124A003 PANEL,TOP 5 RWC132A007 PANEL ASSY, SERVICE 6 RWC435A002 GRILLE,AIR OUTLET 7 SSA944B036 HANDLE 8 RWC116A041 BRACKET,MOTOR...
Page 250 HEAT EXCH. & CONTROL （LIQ.）（GAS） CONTROL ASSY CRBE0191 - 248 -...
Page 251 SRC13CES Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RWC301A022B HEAT EXCH ASSY(AIR) 2 RWC321A373A PIPE ASSY 3 RWC321A374 PIPE ASSY 4-5 RMC304A005 PIPING ASSY(CAPI) 4 RCP315B002 CAPILLARY,SUB 5 RMC315B003 CAPILLARY 6 RCK116A002 BRACKET(VALVE) 2 LIQ. 7 RCK381A501 VALVE,SERVICE(1/4"...
Page 252 PANEL & FAN ASSY CRBE0221 - 250 -...
Page 253 SRC19CES END ITEM NO. : RWC003F052B Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RWC122A003 PANEL,FRONT 2 RWC123A005F PANEL ASSY,SIDE(R) 3 RWC123A002 PANEL,SIDE(L) 4 RWC124A003 PANEL,TOP 5 RWC132A007 PANEL ASSY, SERVICE 6 RWC435A002 GRILLE,AIR OUTLET 7 SSA944B036 HANDLE 8 RWC131A004 GUARD,FIN...
Page 254 HEAT EXCH. & CONTROL （LIQ.）（GAS）（TH3）（TH2）（TH1） 18・22 18・21 CONTROL ASSY CRBE0222 - 252 -...
Page 255 SRC19CES Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-3 RWC301A024 HEAT EXCH ASSY(AIR) 1 RWC311A011 HEAT EXCH(AIR) 2 RWC321A459 PIPE ASSY 3 RWC321A460 PIPE ASSY 4 RWC304A133 PIPING ASSY (EXPAN) 5 RWC315B098 CAPILLARY,SUB 6 SSA325A001AP PIPE,SHELL 7 RCK116A002 BRACKET(VALVE) 8 RWC381A018A VALVE,SERVICE(1/4"...
Page 256 PANEL & FAN ASSY CRBE0224 - 254 -...
Page 257 SRC25CES END ITEM NO. : RWC003F050A Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCR122A001 PANEL ASSY, FRONT 2 RCR125A002 PANEL ASSY, REAR 3 RCR124A002A PANEL,ASSY TOP 4 RCR122A004 PANEL ASSY, SERVICE 5 RCR435A001 GRILLE,AIR OUTLET 6 SSA944B031A HANDLE 7 RCR131A001 GUARD, FIN (A)
Page 258 HEAT EXCH. & CONTROL OUTDOOR TEMP SENSOR (TH2) DISCHARGE PIPE SENSOR (TH3) HEAT EXCH. SENSOR (TH1) （LIQ.）（TH2）（TH3）（TH1） 18・20 18・19 （GAS） CRBE0225 CONTROL ASSY - 256 -...
Page 259 SRC25CES Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-3 RCR301A002 HEAT EXCH ASSY(AIR) 1 RCR311A002 HEAT EXCH(AIR) 2 RCR321A010 PIPE ASSY 3 RCR321A066 PIPE ASSY 4 RCR304A011 PIPING ASSY (EXPAN) 5 RCP315B002 CAPILLARY,SUB 6 PCA325A007 PIPE,SHELL 7 RCR116A003 BRACKET(VALVE) 8 RCR381A003A VALVE,SERVICE(1/4"...
Page 260 2005 ROOM AIR-CONDITIONING TECHNICAL HANDBOOK...

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