Related Manuals for Mitsubishi SRK52HE
Summary of Contents for Mitsubishi SRK52HE
- Page 1 Manual No. ’05 . SRK-T . 046 WALL MOUNTED TYPE ROOM AIR-CONDITIONER (Split system, air to air heat pump type) SRK52HE SRK63HE SRK71HE...
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Page 2: Table Of Contents
CONTENTS 1. GENERAL INFORMATION ................1 Specific features ..................1 How to read the model name ..............1 2. SELECTION DATA ..................2 Specifications ................... 2 Range of usage & limitations ..............5 Exterior dimensions ................. 5 Piping system ................... 7 Selection chart .................. -
Page 3: General Information
1.1 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 4: Selection Data
SELECTION DATA 2.1 Specifications Model SRK52HE (Indoor unit) SRC52HE (Outdoor unit) (220/230/240V) Model SRK52HE SRC52HE Item Cooling capacity 5400 Heating capacity 5600 Power source 1 Phase, 220-240V, 50Hz Cooling input 1.73 Running current (Cooling) 8.6/8.3/7.9 Heating input 1.49 Running current (Heating) 7.4/7.1/6.8... - Page 5 Model SRK63HE (Indoor unit) SRC63HE (Outdoor unit) (220/230/240V) Model SRK63HE SRC63HE Item Cooling capacity 6100 Heating capacity 6300 Power source 1 Phase, 220-240V, 50Hz Cooling input 2.17 Running current (Cooling) 10.8/10.4/9.9 Heating input 1.83 Running current (Heating) 9.1/8.7/8.4 Inrush current 48.2 Cooling: 2.81 Heating: 3.44 Sound level...
- Page 6 Model SRK71HE (Indoor unit) SRC71HE (Outdoor unit) (220/230/240V) Model SRK71HE SRC71HE Item Cooling capacity 6800 Heating capacity 7200 Power source 1 Phase, 220-240V, 50Hz Cooling input 2.05 Running current (Cooling) 10.2/9.8/9.4 Heating input 1.88 Running current (Heating) 9.4/9.0/8.6 Inrush current Cooling: 3.32 Heating: 3.83 Sound level...
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Page 7: Range Of Usage & Limitations
Voltage at starting Max. 10 times/h Frequency of ON-OFF cycle Max. 3 minutes ON and OFF interval 2.3 Exterior dimensions (1) Indoor unit Models SRK52HE, 63HE, 71HE Unit: mm Piping hole right (left) Terminal block Indoor unit Installation board 5 .2 43.5... - Page 8 (2) Outdoor unit Models SRC52HE, 63HE 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 SRC71HE Unit: mm Drain holes 25.8 29.8 87.9 Terminal block 165.5...
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Page 9: Piping System
2.4 Piping system Models SRK52HE, 63HE Cooling cycle Indoor unit Outdoor unit eating cycle Outdoor air Flare connecting Service valve temp. sensor (Gas) Piping Check joint (Gas) ¿15.88 umidity accumulator 4 way valve sensor uffler Room temp. sensor exchanger Discharge pipe... -
Page 10: Selection Chart
2.5 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. (1) Coefficient of cooling and heating capacity in relation to temperatures Cooling Heating... -
Page 11: Electrical Data
ELECTRICAL DATA 3.1 Electrical wiring Models SRK52HE, 63HE... - Page 12 Model SRK71HE...
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Page 13: 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 14 (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 15: 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’ TIMER light (yellow) Illuminates during TIMER operation. HI POWER light (green) Illuminates during HIGH POWER operation. ECONOMY light (orange) Illuminates during ECONOMY operation. -
Page 16: 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 OPE PERMISSION operation due to mixed signals, please modify the printed circuit board in the indoor CUSTOM Jumper wire (J4) unit’s control box and the remote control using the following procedure. -
Page 17: 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 18: Outline Of Heating Operation
4.8 Outline of heating operation (1) 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 19 (5) Hot spurt For 40 minutes after a heating operation begins, the system runs with set temperature raised by 2ºC. (b) In the following cases, this function is canceled and does not activate afterwards. 1) When the compressor and outdoor unit fan have been turned OFF by the thermostat going off. 2) During high pressure control operation.
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Page 20: Outline Of Cooling Operation
(8) Forced defrost Forced defrost operation can be performed only once time within 20 second, after the power source is turned on, in accor- dance with the following operation. 1) Remote control operation 2) Functional components operation Operation Compressor Operation mode Heating 4-way valve Set temperature... -
Page 21: Outline Of Dehumidifying Operation
(3) Thermostat operation The compressor and outdoor fan and turned on and off as shown below according to the temperature setting. Compressor Outdoor fan Room temp. Set temp. (4) HIGH POWER operation ( “HI POWER” button on the remote control : ON) The following operation is performed for 15 minutes without relation to the set temperature or fan speed setting. -
Page 22: Outline Of Automatic Operation
(3) DRY operation After finishing start up operation described in (2) previous page, thermal dry operation is performed at 8 minutes intervals, according to the difference between room temperature and thermostat setting temperature as shown below. Beside, 1 cycle of this operating time consists of 8 minutes, 7 cycle operation is performed then. D Block C Block Compressor... -
Page 23: Regulation Of Outdoor Air Flow
(2) Within 30 minutes after either auto or manual operation stops, if auto operation is started, or if you switch to auto operation during manual operation, the system runs in the previous operation mode. (3) The temperature is checked 1 time in 30 minutes after the start of operation, and if the judgment differs from the previous operation mode, the operation mode changes. -
Page 24: Stop Mode
4.13 Stop mode When the complete stop command given, when When stoppage occurs due to thermostat operation, there is and abnormal stoppage command switching operations and protective function operations Functional Operation Cooling,cooling Heating,heating Cooling,cooling Heating,heating components oriented dehumidifying oriented dehumidifying oriented dehumidifying oriented dehumidifying 3 min. -
Page 25: External Control (Remote Display)/Control Of Input Signal
4.14 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. (1) 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 26: Operation Permission/Prohibition Control
4.15 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. (1) The operation mode is switched over between Permission and Prohibition by releasing the jumper wire (J3) on the indoor control board. - Page 27 (2) Dew condensation prevention control [Cooling (including automatic), cooling oriented dehumidifying operation] (a) 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 (b) Operation contents Reset 1) Command of the electronic expansion valve.
- Page 28 (7) Compressor overheat protection If the discharge pipe temperature (sensed by Th6) exceeds the set temperature value, the compressor stops. If the temperature is 95ºC or lower after a 3-minute delay, it starts again, but if this function is reactivated again within 60 minutes, it results in an abnormal stop. (Run light : ON, Timer light : 5 time flash) Operation possible Abnormal stop...
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Page 29: Application Data
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 30: Selection Of Location For Installation
5.1 Selection of location for installation (1) Indoor unit 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 A place where there will be enough space for servicing. -
Page 31: 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 32 (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 33 [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 34: Installation Of Outdoor Unit
5.3 Installation of outdoor unit (1) Installation of outdoor unit Make sure that the unit is stable in installation. Fix the unit to stable base. 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 35: Test Run
(3) Air purge Tighten all flare nuts in the pipings both indoor and outside will so as not to cause leak. Connect service valve, charge hose, manifold valve and vacuum pump as is illustrated below. 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 36: Precautions For Wireless Remote Control Installation And Operation
(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 (220/230/240V) Model SRK52HE SRK63HE SRK71HE Item – – – Cooling High pressure (MPa) High pressure (MPa) 1.50... -
Page 37: Installation Of Wired Remote Control And Super Link Adapter (Sc-Ad-E) (Optional Parts)
5.7 Installation of wired remote control (d) 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) (1) Modifying the indoor unit’s printed circuit Screw Band board... - Page 38 (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 39 (3) Setting functions using the wired remote control The default settings of this unit's functions are as follows: If you want to change 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 ( 2 Indoor unit functions (I/U FUNCTION FUNCTION...
- Page 40 (b) Function setting method perating 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 41 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 42 (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 and auto operation), the changed lower limit value becomes valid.
- Page 43 (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 44: Maintenance Data
6 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 45 (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 page 44. Identify the faulty component by using the check procedure corresponding to the content of the trouble.
- Page 46 (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 47 (6) 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) Resistance (kΩ)
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Page 48: Over Heat Of Compressor
[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 sensor (page 45) Check if there are any Does trouble persist after Is sufficient quantity of refrigerant places where gas is leaking. - Page 49 [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 50 (8) Checking the indoor electrical equipment (a) 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 51 (9) 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.
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Page 52: 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 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 53 WALL MOUNTED TYPE ROOM AIR-CONDITIONER Air-Conditioning & Refrigeration Systems Headquarters 16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan Fax : (03) 6716-5926...