Related Manuals for Mitsubishi SRK63ZEA-S1
Summary of Contents for Mitsubishi SRK63ZEA-S1
- Page 1 ROOM AIR-CONDITIONING TECHNICAL MANUAL & PARTS LIST INVERTER WALL MOUNTED TYPE ROOM AIR-CONDITIONER (Split system, air to air heat pump type) SRK63ZEA-S1, 71ZEA-S1...
- Page 2 TECHNICAL MANUAL...
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Page 3: Table Of Contents
CONTENTS 1. GENERAL INFORMATION ................2 1.1 Specific features ..................2 1.2 How to read the model name ..............2 2. SELECTION DATA ................... 3 2.1 Specifications .................... 3 2.2 Range of usage & limitations ..............5 2.3 Exterior dimensions .................. 5 2.4 Piping system .................... -
Page 4: General Information
1.1 Specific features The “MITSUBISHI HEAVY INDUSTRIES, LTD.” 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 operation control switch and the outdoor unit is composed of condensing unit with compressor. -
Page 5: Selection Data
SELECTION DATA 2.1 Specifications Model SRK63ZEA-S1 (Indoor unit) SRC63ZEA-S1 (Outdoor unit) (240V) Model SRK63ZEA-S1 SRC63ZEA-S1 Item Cooling capacity 6300 (900~7100) Heating capacity 7100 (900~9000) Power source 1 Phase, 240V, 50Hz Cooling input 1.84 Running current (Cooling) Heating input 1.86 Running current (Heating) Inrush current Cooling: 3.42 Heating: 3.82... - Page 6 Model SRK71ZEA-S1 (Indoor unit) SRC71ZEA-S1 (Outdoor unit) (240V) Model SRK71ZEA-S1 SRC71ZEA-S1 Item Cooling capacity 7100 (900~8000) Heating capacity 8000 (900~10500) Power source 1 Phase, 240V, 50Hz Cooling input 2.21 Running current (Cooling) Heating input 2.21 Running current (Heating) Inrush current Cooling: 3.21 Heating: 3.62 Sound level Hi 45, Me 40, Lo 34, ULo 26...
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Page 7: Range Of Usage & Limitations
Voltage at starting Max. 7 times/h (Inching prevention 5minutes) Frequency of ON-OFF cycle Max. 3 minutes ON and OFF interval 2.3 Exterior dimensions (1) Indoor unit Models SRK63ZEA-S1, 71ZEA-S1 Unit: mm 1098 Piping hole right (left) Terminal block Indoor unit Installation board 17.3... -
Page 8: Piping System
Terminal block Service valve (Liquid) 165.5 25.1 Flare fitting ø6.35 (1/4") Service valve (Gas) Flare fitting ø15.88 (5/8") 2.4 Piping system Models SRK63ZEA-S1, 71ZEA-S1 Indoor unit Outdoor unit Cooling cycle Heating cycle Outdoor air Flare connecting Service valve temp. sensor... -
Page 9: Selection Chart
0.87 0.92 1.00 How to obtain the cooling and heating capacity Example : The net cooling capacity of the model SRK63ZEA-S1 with the piping length of 15m, indoor wet-bulb temperature at 19.0˚C ✕ ✕ = 6143W and outdoor dry-bulb temperature 35˚C is Net cooling capacity = 6300 0.975... -
Page 10: Electrical Data
ELECTRICAL DATA 3.1 Electrical wiring Model SRK63ZEA-S1, 71ZEA-S1... -
Page 11: Outline Of Operation Control By Microcomputer
OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 4.1 Operation control function by remote control switch (1) 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 12 (2) 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.
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Page 13: Unit On/Off Button
(3) Unit indication section RUN (HOT KEEP) light (green) Models All models • Illuminates during operation. • Blinks at air flow stop due to the ‘HOT KEEP’ and ‘CLEAN operation’. 1.5 sec. HOT KEEP 0.5 sec. 3 sec. CLEAN operation HI POWER light (green) 1 sec. -
Page 14: Custom Cord Switching Procedure
4.4 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 15: Comfortable Timer Setting
4.6 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 16: Outline Of Heating Operation
If the inverter command speed obtained with the fuzzy calculation drops below -24 rps during the heating fuzzy operation, the operation changes to the heating thermostat operation. ¡ Detail of operation Model SRK63ZEA-S1, 71ZEA-S1 Item Inverter command speed 0rps [Comp. stopped] Hot keep N or M mode →... - Page 17 (c) 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 18 2 Continued operation time of defrosting → For more than 10 min. (5) Heating “HIGH POWER” operation (HI POWER button on remote control: ON) Operation is maintained for 15 minutes with a higher blow out air temperature. ¡ Detail of operation Model SRK63ZEA-S1 SRK71ZEA-S1 Item Inverter command speed 88 rps...
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Page 19: Outline Of Cooling Operation
Depending on the stop mode Electronic expansion valve Depending on the EEV control (2) Air flow selection (a) Speed of inverter changes within the range of selected air flow. Model SRK63ZEA-S1 SRK71ZEA-S1 Air flow selection Inverter command speed 12~64rps 12~74rps... -
Page 20: Outline Of Dehumidifying Operation
4.10 Outline of dehumidifying operation (1) 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 21: Outline Of Automatic Operation
(b) 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 2°C 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 22: Outline Of Fan Operation
4.12 Outline of fan operation (1) Operation of major functional components Fan speed switching Functional AUTO ECONO components Inverter command speed 0rps Indoor fan motor 2nd speed 8th speed 6th speed 4th speed 2nd speed 2nd speed Outdoor fan motor Flap and louver Depend on the flap and louver control 4.13 Outline of clean operation... - Page 23 (a) Fan operation 1 Operation content Inverter command speed 0 rps Indoor fan motor 1st speed Outdoor fan motor Flap and louver Fully closed/ Center (b) Cooling operation Operation content Note (1) During cooling operation safety control,frost Inverter command speed 20 rps prevention control, and cooling overload Indoor fan motor...
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Page 24: Economy Operation
(1) The set temperature is raised by 1.5°C (0.5°C every one hour) at cooling operation and lowered by 2.5°C (Steps of 1°C, 1°C and 0.5°C every one hour) at heating operation to continue the operation with the following contents. (2) Detail of operation Model SRK63ZEA-S1 SRK71ZEA-S1 Item Operation mode... -
Page 25: Operation Permission/Prohibition Control
4.17 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. (1) The operation mode is switched over between Permission and Prohibition by releasing the jumper wire (J3) on the indoor control board. -
Page 26: Protective Control Function
4.18 Protective control function (1) 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 27 ◆ < II > (a) 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 28 ◆ < II > (a) Operating conditions: When the outdoor air temperature sensor (Th5) is 22°C or lower continues for 30 seconds while outdoor speed is other than 0rps. (b) 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 29 (8) Heating low outdoor temperature protective control ◆ < I > (a) 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. (b) Detail of operation: When the inverter command speed is less than 20rps, the speed is forcibly set at 20rps.
- Page 30 (12) Freezing cycle system protective control (a) 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 > –4°C During heating: Indoor heat exchanger temperature–Room temperature <...
- Page 31 (17) Power transistor overheat protection (a) Purpose: In order to prevent the power transistor overheating during operation, faulty controller operations, deterioration, damage and so on occurs. (b) Detail of operation: 1 Power transistor sensor temperature = > 110°C The compressor is stopped immediately. When the power transistor sensor temperature is less than 80°C, restart. 2 90°C = <...
- Page 32 (20) 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. (21) 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.
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Page 33: Application Data
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 34: Selection Of Location For Installation
5.1 Selection of location for installation (1) Indoor unit (a) Where there is no obstructions to the air flow and where the cooled air can be evenly distributed. (b) A solid place where the unit or the wall will not vibrate. 6.5 cm Right (c) A place where there will be enough space for servicing. -
Page 35: Installation Of Indoor Unit
5.2 Installation of indoor unit (1) Installation of installation board (a) 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 36 (3) Preparation of indoor unit (a) 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 37 [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.
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Page 38: Installation Of Outdoor Unit
5.3 Installation of outdoor unit (1) Installation of outdoor unit (a) Make sure that the unit is stable in installation. Fix the unit to stable base. (b) 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 39: Test Run
(3) Air purge (a) Tighten all flare nuts in the pipings both indoor and outside will so as not to cause leak. (b) Connect service valve, charge hose, manifold valve and vacuum pump as is illustrated below. (c) 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 40 (4) Explain to the customer on the correct usage of the air conditioner in simple layman’s terms. (5) Make sure that drain flows properly. (6) Standard operation data (240V) Model SRK63ZEA-S1 SRK71ZEA-S1 Item – – Cooling High pressure (MPa) Heating 2.5~2.7...
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Page 41: Precautions For Wireless Remote Control Installation And Operation
5.6 Precautions for wireless remote control installation and operation (1) Wireless remote control covers the following distances: (a) 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 42: Installation Of Wired Remote Control And Super Link Adapter Sc-Ad-E) (Optional Parts)
5.7 Installation of wired remote (d) Cut the jumper attached on the board. control and super link adapter • Remove the upper box. Remove the screw, the latch and the band. (SC-AD-E) (Optional parts) (1) Modifying the indoor unit’s printed circuit Screw board Band... - Page 43 (2) Installation of wired remote control (Optional 2) Recessed fitting parts) a) The Electrical box and remote control (shield (a) 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 44 (3) Setting functions using the wired remote control (a) 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.
- Page 45 (b) Function setting method perating guide message Function description: B , Settting: C 1) Stop the air conditioner 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 46 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 47 (d) 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 48 (4) SUPER LINK ADAPTER (SC-AD-E) (a) Functions Transmits the settings from the Super link option to the indoor units. Returns the priority indoor unit data in response to a data request from the Super link option. Inspects the error status of connected indoor units and transmits the inspection codes to the Super link option. A maximum of 16 units can be controlled (if in the same operation mode).
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Page 49: Maintenance Data
MAINTENANCE DATA 6.1 Troubleshooting procedures for electrical equipment (1) 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 50 (4) 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 49. Is an error code displayed by Using the Service Mode, access the self-diagnosis the self-diagnosis function?
- Page 51 (5) 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 52 (6) 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 53 *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 54 2 Stop data Remote control setting Displayed data Temperature Operation Fan speed 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 55 Number of flashes when in service mode Stop code Error content Auto Error Occurrence conditions Cause TIMER display recovery light light Error code Major category Minor 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 56 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 57 (e) 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 58 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 59 Service data record form ustomer Model Date of investigation Machine name ontent of complaint Display results Remote control settings Display content ontent 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 60 (7) 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. ◆ Sensor temperature characteristics ◆ Discharge pipe sensor temperature characteristics (Room temp., indoor unit heat exchanger Temperature (˚C) Temperature (˚C)
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Page 61: Current Cut
[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 62 [Gas shortage, defective discharge Over heat of compressor pipe sensor] Is discharge pipe sensor Connector connection check, resistance value check, replacement of discharge pipe resistance value good? sensor (page 58) Check if there are any Does trouble persist after Is sufficient quantity of refrigerant places where gas is leaking.
- Page 63 [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 f a n m o t o r a n d outdoor unit circuit board Replace outdoor fan motor separately.
- Page 64 (b) 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 65 (10) Inverter failure diagnosis If the results of the diagnosis in Item (7) indicate that the inverter is defective, perform the following inspection on the inverter. (a) Diagnosis procedure Fuse is defective Is the fuse good? e Replace Varistor is defective Is the varistor good? e Replace Noise filter is defective...
- Page 67 ◆ 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.
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Page 68: Servicing
6.2 Servicing (1) 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 69: Refrigerant Piping Installation/Servicing Manual For Air Conditioners Using R410A
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) 7.1 Outline 7.1.1 Refrigerant R410A (1) 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 70: Refrigerant Piping Installation
(3) 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 71 (2) Joints For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants. a) 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 72 d) 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”...
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Page 73: Storage Of Piping Materials
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 (2) Flare connecting procedures and precautions a) Make sure that the flare and union portions do not have any scar or dust, etc. - Page 74 (2) Identification a) Piping set A copper pipe as piping set for R410A must have a thickness as stated in Table 3 (see on page 68), and, as shown in Tables 5 and 6 (see on page 70), 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 75 (3) Flux a) 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 76 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 77 (1) Tools exclusive for R410A a) 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 78 e) 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 79 7.3.2 New installation work (when using new refrigerant piping) (1) Air purge by vacuum pump and gas leakage inspection (see Fig. 6) a) Connect the charge hose to the outdoor unit. 1 b) Connect the charge hose to the vacuum pump adapter. 2 At this time, keep the control valves in the fully closed position.
- Page 80 f) 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 g) Quickly remove the charge hose from the service port. 6 When stopped halfway, refrigerant being cycled will be released. h) After securing the caps on the service port and control valve, check the caps’...
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Page 81: Refrigerant Recovery
7.3.6 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 82 (4) Recovering procedures a) According to the instructions for handling the refrigerant recovering equipment (described in the attached instruction manual), operate the equipment to recover refrigerant. b) 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 83 b) 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. (4) Gauge manifold Hose Setting...
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Page 84: Parts List
PARTS LIST NDOOR UN T SRK63ZEA-S1, SRK71ZEA-S1 OUTDOOR UN T SRC63ZEA-S1, SRC71ZEA-S1... - Page 85 PANEL & FAN ASSY CRAE0167 - 83 -...
- Page 86 SRK63ZEA-S1 END ITEM NO. : RWA002F045J Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-6 RKW102A200A PANEL ASSY,FRONT 1 RKW122A200 PANEL,FRONT 2 RKW435A200A PANEL ASSY AIR IN 3 RKW437A200 FILTER,AIR 4 RKW129A213 HOLDER, FILTER 5 RKW133A202 FILM,CONCEAL 6 RKW129A214...
- Page 87 SRK63ZEA-S1 Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 38 RKW129A202 BRACKET MOTOR ( L ) 39 RKS504A601C HARNESS ASSY 2 FOR FAN MOTOR 40 RKW032A200 PLATE,INSTALLATION 41 RKW129A212 COVER(PIPE) 42 RKW132A200 LID(R) 43 RKW132A201 LID(L) 44 SSA913A007A...
- Page 88 MEMO - 86 -...
- Page 89 HEAT EXCH. & CONTROL CRAE0168 - 87 -...
- Page 90 SRK63ZEA-S1 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)
- Page 91 PANEL & FAN ASSY CRAE0167 - 89 -...
- Page 92 SRK71ZEA-S1 END ITEM NO. : RWA002F045K Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1-6 RKW102A200A PANEL ASSY,FRONT 1 RKW122A200 PANEL,FRONT 2 RKW435A200A 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 93 SRK71ZEA-S1 Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 38 RKW129A202 BRACKET MOTOR ( L ) 39 RKS504A601C HARNESS ASSY 2 FOR FAN MOTOR 40 RKW032A200 PLATE,INSTALLATION 41 RKW129A212 COVER(PIPE) 42 RKW132A200 LID(R) 43 RKW132A201 LID(L) 44 SSA913A007A SCREW,TAP - 91 -...
- Page 94 MEMO - 92 -...
- Page 95 HEAT EXCH. & CONTROL CRAE0168 - 93 -...
- Page 96 SRK71ZEA-S1 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 97 PANEL & FAN ASSY CRBE0207 - 95 -...
- Page 98 SRC63ZEA-S1 END ITEM NO. : RWC003F048J 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 99 HEAT EXCH. & CONTROL OUTDOOR TEMP SENSOR (TH2) DISCHARGE PIPE SENSOR (TH3) HEAT EXCH. SENSOR (TH1) (LIQ.) (GAS) CONTROL ASSY CRBE0208 - 97 -...
- Page 100 SRC63ZEA-S1 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 SSA382C068 VALVE, S(4WAY) 6 RCR116A003A BRACKET(VALVE) 7 RCR381A003 VALVE,SERVICE(1/4"...
- Page 101 PANEL & FAN ASSY CRBE0207 - 99 -...
- Page 102 SRC71ZEA-S1 END ITEM NO. : RWC003F048K 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 103 HEAT EXCH. & CONTROL OUTDOOR TEMP SENSOR (TH2) DISCHARGE PIPE SENSOR (TH3) HEAT EXCH. SENSOR (TH1) (LIQ.) (GAS) CONTROL ASSY CRBE0208 - 101 -...
- Page 104 SRC71ZEA-S1 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 SSA382C068 VALVE, S(4WAY) 6 RCR116A003A BRACKET(VALVE) 7 RCR381A003 VALVE,SERVICE(1/4"...
- Page 105 MEMO...
- Page 106 ROOM AIR-CONDITIONING TECHNICAL MANUAL & PARTS LIST Manual No. '06·SRK-T·053...