Mitsubishi SRC50CA- Manuals

- 3 - 2 SELECTION DATA 2.1 Specifications Model SRK10CDV-1, -4 (Indoor unit)SRC10CDV-1, -4 (Outdoor unit) (2) The operation data are applied to the 220 V districts respectively. (3) The refrigerant quantity to be charged includes the refrigerant in 7.5 m connecting piping. (Purging is not required e...

- 6 - 2.2 Range of usage & limitations 2.3 Exterior dimensions Indoor return air temperature(Upper, lower limits) Refrigerant line (one way) length Max. 15m All models Refer to the selection chart Power source voltage Rating ± 10% Voltage at starting Min. 85% of rating Frequency of ON-OFF cycle ...

- 7 - (2) Outdoor unit Models SRC10CDV-1, 10CDV-4 Drain hole 286.4 12 50 290 49.6 43.5 850 203.1 510 136.9 476 Elogated hole (2-12 x16) 314 12 328 Terminal block Service valve (Liquid) ø 6.35 (1/4'') Service valve (Gas) ø 12.7 (1/2'') Groundterminal 124 34.6 20˚ 20˚ 42.7 100.3 15 640 14 Unit: mm Mod...

- 9 - 2.5 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. (1) Coefficient of cooling capacity in relation to tempe...

- 10 - 3 ELECTRICAL DATA 3.1 Electrical wiring Models SRK10CDV-1, 10CDV-4 Power source1 Phase 220V 50Hz CM 52C Printed circuit board 51C FMo BK BK T2 Th 2 T1 Th 1 BK BK WH WH CNC CNE CNM CNW CNU CNC Sh1 52C3 52C4 Tr N 52C CNB Y/GN LB Y 15 3 WH RD BR WH BK WH WH WH WH WH RD WH BK L2 2 3 1 L3 L1 Sh CF...

- 11 - Model SRK13CDV-1, 13CDV-4 Power source1 Phase 220V 50Hz CM 52C Printed circuit board FMo BK BK T2 Th 2 T1 Th 1 BK BK WH WH CNC CNE CNM CNW CNU CNC Sh1 52C3 52C4 Tr N 52C CNB Y/GN LB Y 15 3 WH RD BR WH BK WH WH WH WH WH RD WH BK L2 L3 L1 Sh CFO ZNR F (3.15A) CFI Cc OR OR Wireless Display R-Amp...

- 12 - LO MED HI AUTO HI POWER ECONO ON OFF AM PM HI POWER TEMP ECONO AIR FLOW CANCEL ON OFF RESERVE TIMER TIME ACL FAN SPEED ON MODE LO MED HI AUTO TIME OFF HI POWER ECONO ON OFF AM PM FAN SPEED button Each time the button is pushed, the indi- cator is switched over in turn. • The above illustratio...

- 13 - Unit indication section Models All models RUN HIPOWER ECONO TIMER RUN light (green) • Illuminates during operation. TIMER light (yellow) Illuminates during TIMER operation. ECONOMY light (orange) Illuminates during ECONOMY operation. HI POWER light (green) Illuminates during HI POWER operatio...

- 15 - (6) Outline of cooling operation (a) Operation of major fanctinal components (b) Fan speed switching 1) Auto fan control The indoor fan is automatically controlled in accordance with the difference between the room temperature (detected by the room temperature thermistor) and the termostat se...

- 19 - 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...

- 20 - 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. (c) A place where there will be enough space for servicing. (Where s...

- 21 - Adjustment of the installation board in the horizontaldirection is to be conducted with four screws in atemporary tightened state. 5.2 Installation of indoor unit (1) Installation of installation board (a) Fixing of installation board (2) Drilling of holes and fixture sleeve (Option Parts) Wh...

- 23 - (4) Installation on indoor unit (a) 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 thelower part of the indoor unit so that the unit is fixed in position. ¡ When removing t...

- 24 - ¡ Always use a Torque wrench and back up spanner to tighten the flare nut. (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 man...

- 25 - (b) Finishing and fixing (i) Tie up the piping with wrapping tape, and shape it so that it conforms to which the pipe is attached. (ii) Fix them with clamps as right figure. Cover the exterior portion with cov-ering tape and shape the piping soit will match the contours of theroute that the p...

- 26 - 6 MAINTENANCE DATA 6.1 Trouble shooting (1) 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 u...

- 27 - (2) Indication of Self Diagnosis (Indoor unit) TIMER lampis lightscontinuously. RUN lamp is flashing.(1 Time flash.) RUN lamp is flashing.(2 Time flash.) RUN lamp is flashing.(6 Time flash.) TIMER lamp is flashing.(2 Time flash.) Connect of Defect Abnormality of heatexchanger thermistor. Abno...

- 28 - (4) Trouble Diagnostic Procedures Unit malfunctions ordoes not stop. Replace PCB. Microcomputer rarelymis-starts even duringtimes or power supplyor power failure, but, itcan sometimes occurduring those times. If itoccurs, check the opera-tion, when the result ispositive then proceed asnormal....

- 30 - (2) Refrigerant charge (a) 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. (b) Keep the gauge manifold and connect a refrigerant cylinder to the unit. (c) ...

- 32 - 1 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 equip...

- 40 - 2.5 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. (1) Coefficient of cooling capacity in relation to temp...

- 41 - 3 ELECTRICAL DATA 3.1 Electrical wiring Models SRK06CC-1, 06CC-4, 07CC-1, 07CC-4, 09CC-1, 09CC-4 Power source1 Phase 220/240V 50Hz Printed circuit board Wireless R-Amp Display Indoor unit Outdoor unit BK Black BL Blue BR Brown RD Red OR Orange WH White Color symbol Operation Cooling Relay sym...

- 45 - (5) Comfort timer settings Temperature is checked beginning 1 hour before the set time, and the power is turned on before the timer setting as necessary tobring the temperature to the proper level by the set time. Operation mode Room temperature thermistor (Th 1 ) Operating start time (amount...

- 47 - ON OFF OFF 0 4 8 ON OFF OFF 0 8 OFF OFF 0 8 ON OFF OFF 0 3 8 (c) DRY operation After finishing start up operation described in (b) above, thermal dry operation is performed at 8 minutes intervals, according to the difference between room temperature and thermostat setting temperature as shown...

- 48 - (14) Self diagnosis function When something abnormal happens on the outdoor unit, indoor unit fan motor and each thermistor (heat exchanger, room tempera- ture, ) it will be indicated by flashing lamps. (a) Abnormality of outdoor unit: When the indoor heat exchanger temperature does not fall ...

- 49 - 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...

- 50 - 5.1 Selection of location for installation (1) Indoor unit 1 Where there is no obstructions to the air flow and where the cooled air can be evenly distributed. 2 A solid place where the unit or the wall will not vibrate. 3 A place where there will be enough space for servicing. (Where space m...

- 51 - 1 Fixing of installation board 5.2 Installation of indoor unit (1) Installation if installation board (Inserting sleeve) Indoor side Outdoor side Turn totighten Paste View of sleeve when installed I n c l i n e dflange Sealingplate Sleeve Indoor side Outdoor side (*Sleeve + *Inclined + *Seali...

- 52 - Pipe Drain hose (3) Preparation of indoor unit 1 Mounting of connecting wires a Remove lid. b Connect the connection wire securely to the terminal block. ¡ Affix the connection wire securely to the terminal block. If the wire is not affixed completely, contact will be poor, and it is dangerou...

- 53 - Wall Gutter Pipes storage area ¡ When conducting the central rear piping, use a nipper to cut outknock-out holes in the installation board. ¡ Do not place the power supply cordsabove the gutter, because the air con-ditioner is structured in a way wherecondensation on the back side is col-l e ...

- 55 - (3) Air purge 1 Tighten all flare nuts in the pipings both indoor and outside wall so as not to cause leak. 2 Connect service valve, charge hose, manifold valve and vacuum pump as is illustrated below. 3 Open manifold valve handle Lo to its full width, and perform vacuum or evacuation.Continu...

- 56 - Vinyl tape To cover the connecting portion with insula-tion materials, cut upper portion and then sealit with insulation materials. Cover the exterior portion with cov-ering tape and shape the piping so itwill match the contours of the routethat the piping to take. Also fix thewiring and pipi...

- 57 - 5.8 Precautions for wireless remote controller installation and operation (1) Wireless remote controller covers the following distances: (a) When operating facing the air-conditioner: Notes (1) The remote controller is correctly facing the sensing element of the air conditioner when being man...

- 62 -   6.3 Power supply remote operation When the remote part on indoor unit PCB is modified, the air conditioner is turned ON-OFF by power supply ON-OFF operation without using remote control switch. After the power supply remote operation, the operation contents can be modified by the remote con...

- 64 - 1 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 equipment with o...

- 65 - 2 SELECTION DATA 2.1 Specifications Model SRK50A (Indoor unit) SRC50CA (Outdoor unit) (2) The operation data are applied to the 220V, 230V or 240V districts respectively. (3) The refrigerant quantity to be charged includes the refrigerant in 7 m connecting piping. (Purging is not required eve...

- 67 - 2.2 Range of usage & limitations 2.3 Exterior dimensions (1) Indoor unit Models SRK50A, 56A, 56A-4 B ! "#$ B "%$ & &#!%%! '! B "%$ (!!% '%)* "%$ " %$ + ,$$ )%%$ - .&/0 - 1!# B Indoor return air temperature(Upper, lower limits) Refrigerant line (one way) len...

- 69 - 2.5 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. (1) Coefficient of cooling capacity in relation to temp...

- 70 - 3 ELECTRICAL DATA 3.1 Electrical wiring Models SRK50CA, 56CA, 56CA-4 Notes (1) : denotes magentized relay × : denotes demagnetized relay (2) Th 1 is room temperature thermistor. Th 2 (the heat exchanger thermistor) is frost prevention thermistor. (for details, refer to page 75) Meaning of mar...

- 71 - RUN HI POWER ECONO TIMER Run (HOT KEEP) light (green) TIMER light (yellow) HI POWER light (green) ECONOMY light (orange) ¡ Illuminates during operation. Illuminates during TIMER operation. Illuminates during HI POWER operation. Illuminates during ECONOMY operation. 4 OUTLINE OF OPERATION CONT...

- 76 - (16) Self diagnosis function When something abnormal happens on the outdoor unit, indoor unit fan motor and each sensor (heat exchanger, room tempera- ture,) it will be indicated by flashing lamps. (a) Abnormality of outdoor unit: 1) Cooling operation When the indoor heat exchanger temperatur...

- 81 - (4) Installation of indoor unit (a) Hang the upper portion of the unit rear cover on the mounting board, and then magnet on the lower unit portion will pull to fix the unit. (b) Be sure not to leave any trap on the drain pipe. Wall Declining slope Inverted slipe Trap Slighty push Mountingbloc...

- 84 - 6 MAINTENANCE DATA 6.1 Trouble shooting (1) 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 u...

- 87 - 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 equipme...

- 88 - (2) Modification method Cut the jumper wire for the “REMOTE” section on the printed circuit board. Carefully position the jumper wire so that it does not come in contact with other parts. 6.3 Power supply remote operation When the remote part on indoor unit PCB is modified, the air conditione...