Mitsubishi SRK52HE Technical Manual Download Page 1

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WALL MOUNTED TYPE
ROOM AIR-CONDITIONER

Manual No. ’05 . SRK-T . 046

(Split system, air to air heat pump type)

SRK52HE

SRK63HE

SRK71HE

Summary of Contents for SRK52HE

Page 1: ...3 WALL MOUNTED TYPE ROOM AIR CONDITIONER Manual No 05 SRK T 046 Split system air to air heat pump type SRK52HE SRK63HE SRK71HE...

Page 2: ...tline of heating operation 16 4 9 Outline of cooling operation 18 4 10 Outline of dehumidifying operation 19 4 11 Outline of automatic operation 20 4 12 Regulation of outdoor air flow 21 4 13 Stop mod...

Page 3: ...nd continues to operate at the same position from the next time 2 Automatic operation When the remote control switch is set on auto it will either automatically decide operation mode such as cooling h...

Page 4: ...puter thermostat Pilot lamp RUN Green TIMER Yellow HI POWER Green ECONO Orange Safety equipment O D mm in Liquid line 6 35 1 4 Gas line 15 88 1 2 Connecting method Flare connecting Attached length of...

Page 5: ...Microcomputer control Air handling equipment Fan type Q ty Tangential fan 1 Propeller fan 1 Motor W 46 43 Cooling 18 42 Air flow at High Heating CMM 19 42 Air filter Q ty Polypropylene net washable 2...

Page 6: ...om temperature control Microcomputer thermostat Pilot lamp RUN Green TIMER Yellow HI POWER Green ECONO Orange Safety equipment O D mm in Liquid line 6 35 1 4 Gas line 15 88 5 8 Connecting method Flare...

Page 7: ...2 2 Range of usage limitations 2 3 Exterior dimensions Refer to the selection chart Rating 10 Min 85 of rating Max 15m Max 10m Max 10 times h Max 3 minutes 1 Indoor unit Models SRK52HE 63HE 71HE VIEW...

Page 8: ...ck Service valve Liquid 6 35 1 4 Service valve Gas 15 88 5 8 Ground terminal 124 34 6 20 2 0 42 7 100 3 15 640 14 2 Outdoor unit Models SRC52HE 63HE Model SRC71HE Unit mm Terminal block 25 1 165 5 48...

Page 9: ...7 2 4 Piping system Models SRK52HE 63HE Outdoor unit Indoor unit 0 Outdoor unit Indoor unit 0 Model SRK71HE...

Page 10: ...heating capacity needs to be adjusted also with respect to the frosting on the outdoor heat exchanger How to obtain the cooling and heating capacity Example The net cooling capacity of the model SRK6...

Page 11: ...ication DC12 ON indication for CM DC12 Check indication DC12 Distant operation Heat exch sensor Outdoor unit Outdoor air temp sensor Discharge pipe temp sensor Varistor 4 way valve coil Electronic exp...

Page 12: ...M DC12 Check indication DC12 Distant operation Heat exch sensor Outdoor unit Outdoor air temp sensor Discharge pipe temp sensor Varistor 4 way valve coil Electronic expansion valve Diode stack Auxilia...

Page 13: ...time and TIMER time OFF TIMER button This button selects OFF TIMER operation RESET switch Switch for resetting microcomputer AIR FLOW LEFT RIGHT button This button changes the air flow left right mode...

Page 14: ...apply the timer operation setting This switch is also used to make silent mode operation settings RESET switch Press this switch while making settings to go back to the previous operation This switch...

Page 15: ...ture as detected by sensor whether to go into the cooling thermal dry or heating modes Function Room temperature Operation mode setting Fan speed Flap Timer switch Cooling About 24 C Thermal dry About...

Page 16: ...ves in left and right directions continuously 3 When not operating The flap returns to the position of air flow directly below when operation has stopped 4 Multi directional Air Flow up down air scrol...

Page 17: ...2 This function does not operate when in the Dry or Auto Dry and FAN mode However the operation in item 1 does operate in the Auto Dry and FAN mode 3 During the comfortable timer operation both the r...

Page 18: ...the room temperature sensor and the thermostat setting as shown below Indoor fan motor Flap and louver Display Outdoor fan motor ON ON or OFF Lights up OFF ON ON or OFF Lights up ON ON OFF Stop posit...

Page 19: ...he HIGH POWER operation Indoor unit fan Outdoor unit fan Compressor Speed 10 fixed ON ON 5 The compressor is running Defrost shall not be performed once the Compressor has been ON for 10 minutes 2 Als...

Page 20: ...ostat setting point Speed 8 1 2 3 4 8 Forced defrost a 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 o...

Page 21: ...art 1 hour 1 2 hours 2 hours Set temperature compensation Set temperature 0 5 Set temperature 1 0 Set temperature 1 5 Compressor and outdoor fan ON OFF OFF Indoor fan Start Temperature check Speed 4 3...

Page 22: ...this operating time consists of 8 minutes 7 cycle operation is performed then Running time Running start 1 hour 1 2 hours 2 hours Set temperature compensation Set temperature 0 5 Set temperature 1 0 S...

Page 23: ...eless remote control and the setting temperature Signals of wireless remote control Display 6 5 4 3 2 1 0 1 2 3 4 5 6 Setting Cooling 18 19 20 21 22 23 24 25 26 27 28 29 30 temperature Dehumidifying 1...

Page 24: ...ehumidifying Operation Stop instructions All stop Stop instructions All stop Stop instructions Restart Stop instructions Restart 1st speed Hot keep When the complete stop command given when there is a...

Page 25: ...l of input signal Control of input signal switch input timer input connectors CNT are provided on the control circuit board of the indoor unit However when the operation of air conditioner is under th...

Page 26: ...nged from OFF to ON the air conditioner operation mode is changed depending on the status of the jumper wire J1 on the indoor control board 3 When the CnT input is set to OFF Prohibition a The air con...

Page 27: ...minutes and more The unit is stopped due to the outdoor unit abnormality excepting the defrost operation time The timer light flashes 2 times 2 5 C the indoor heat exchanger temperature 30 C for 40 mi...

Page 28: ...on is displayed Also if the temperature detected by the indoor heat exchanger temperature sensor is 20 C or lower continuously for 3 minutes after heating operation has started the indoor unit s fan s...

Page 29: ...ng the safety standards related to electrical equipment and local regulations as well as the installation instructions and that only exclusive use circuits are used Insufficient power source circuit c...

Page 30: ...near the bedroom and the like so that the operation noise will cause no trouble A place where there is possibility of flammable gas leakage A place exposed to strong wind Left side Right side 5 cm 10...

Page 31: ...ation board a Fixing of installation board 2 Drilling of holes and fixture sleeve Option Parts When drilling the wall that contains a metal lath wire lath or metal plate be sure to use pipe hole sleev...

Page 32: ...s H05RNR4G1 5 Example H Harmonized cable type 05 300 500 volts R Natural and or synth rubber wire insulation N Polychloroprene rubber conductors insulation R Standed core 4 Number of conductors G One...

Page 33: ...n it is exposed indoor Drain hose c Fixing of indoor unit How to remove the indoor unit from the installation board 1 Push up at the marked portion of the indoor unit base lower latch and slightly pul...

Page 34: ...e Outdoor unit side Remove the flared nuts on both liquid and gas sides Remove the flared nuts on both liquid and gas sides Install the removed flared nuts to the pipes to be connected then flare the...

Page 35: ...ple How much amount of additional charge for 15m piping 15 7 m 25g m 200g 200g for additional charge 4 Insulation of connecting portion a Cover the connecting portion of the refrigerant piping with th...

Page 36: ...ks normally i e transmission reception signal is audible before mounting Notes 1 The remote control is correctly facing the sensing element of the air conditioner when being manipulated 2 The typical...

Page 37: ...move the screw the latch and the band Cut the jumper printed WIRED REMOCON attached on the board It is impossible to control by the wireless remote control after cutting the jumper Install the upper b...

Page 38: ...Replace the top casing as before f Use a cord clamp to attach the remote con trol cord to the wall g Set the functions according to the types of in door unit See Section Function Setting Thin walled p...

Page 39: ...08 09 10 Function number A Default setting Hi CEILING SET FILTER SIGN SET POSITION EXTERNAL INPUT SET ROOM TEMP OFFSET FAN CONTROL FREEZE PREVENT TEMP FREEZE PREVENT CONTROL Heating room temperature...

Page 40: ...ress either or button Function number A Function description B from the list of remote control unit functions will be displayed one by one Select a desired function 3 Press the SET button The screen d...

Page 41: ...en followed by SET COMPLETE and the function setting process is completed Then the screen display will be switched to Function number A Function description B so if you want to continue to set another...

Page 42: ...ss the button once The display will change to TEMP RANGE c Press the SET button to enter the temperature range setting mode d Using the or button select Hi LIMIT SET or Lo LIMIT SET the press the SET...

Page 43: ...2 0 mm2 2 core Connection to the terminal block for remote control polar total length of wires 600 m maximum No Name ot the recommended signal wire 1 Shielding wire 2 Vinylcabtire round cord 3 Vinyl...

Page 44: ...erant service valve open 3 Troubleshooting procedure If the air conditioner does not run at all If the air conditioner does not run at all diagnose the trouble using the following troubleshooting proc...

Page 45: ...stomer complaints Judge the conditions in comparison with the contents of the complaints Confirm the contents of the customer complaint Check the self diagnosis display Eliminate the cause of the trou...

Page 46: ...ctive fan motor poor connector connection Gas shortage defective discharge pipe sensor closed service valve Indoor fan motor error Over heat of compressor When a sensor wire disconnection is detected...

Page 47: ...20 1 9 55 14 125 1 6 60 12 130 1 4 65 10 135 1 3 Discharge pipe sensor temperature characteristics Indoor fan motor error Defective fan motor connector poor connection defective PCB Is connector conne...

Page 48: ...ission Wiring error including power cable defective indoor outdoor unit PCB Does error persist after power reset Are the lines connecting the indoor and outdoor units connected normally Is DC 0 Approx...

Page 49: ...erated 1 Humidity sensor operation Failure mode Control input circuit reading Air conditioning system operation 1 Disconnected wire Humidity reading is 0 Operates in the Dry region 2 Disconnected wire...

Page 50: ...motor is normal it means that the fan motor is faulty 1 2 3 4 5 6 1 2 3 4 5 6 FMI DC15V Indoor unit circuit board DC 308 336V DC several V 4 6 V CNU GND Blue Yellow White Black Red Measuring Point Res...

Page 51: ...f remote control Note 1 Check method of remote control a Press the reset switch of the remote control b If all LCD are displayed after one 1 display it is basically normal 1 NO YES YES Remote control...

Page 52: ...and then immediately retighten it after observing that gas is blow out from the loosened portion e Open the valve 1 and 3 after discharging air from the charge hose A then the gas refrigerant begins f...

Page 53: ...2 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...

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