Кондиционеры Mitsubishi Heavy Техническое руководство Кондиционеры настенного типа SRK20HD-S, SRK28HD-S, SRK40HD-S, SRK20CD-S, SRK28CD-S, SRK40CD-S Опубликовано TopClimat
CONTENTS 1. GENERAL INFORMATION .............................................................................. 1 1.1 Specific features ....................................................................................... 1 1.2 How to read the model name ................................................................... 1 2. SELECTION DATA........................................................................................... 2 2.1 Specifications ........................................................
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 equipment with operation control switch and the outdoor unit is composed of condensing unit with compressor. (1) Remote control flap The flap can be automatically controlled by operating wireless remote controller.
2 SELECTION DATA 2.
Model SRK28HD-S (Indoor unit) SRC28HD-S (Outdoor unit) Model SRK28HD-S Item Operation data(1) Cooling capacity(1) Heating capacity(1) Power source Cooling input Running current (Cooling) Heating input Running current (Heating) Inrush current COP Cooling sound level Power level Heating sound level Power level Noise level Exterior dimensions Height × Width × Depth Color Net weight Refrigerant equipment Compressor type & Q’ty Motor Starting method Heat exchanger Refrigerant control Refrigerant(3) Refr
Model SRK40HD-S (Indoor unit) SRC40HD-S (Outdoor unit) Model SRK40HD-S Item Operation data(1) Cooling capacity(1) Heating capacity(1) Power source Cooling input Running current (Cooling) Heating input Running current (Heating) Inrush current COP Cooling sound level Power level Heating sound level Power level Noise level Exterior dimensions Height × Width × Depth Color Net weight Refrigerant equipment Compressor type & Q’ty Motor Starting method Heat exchanger Refrigerant control Refrigerant(3) Refr
Model SRK20CD-S (Indoor unit) SRC20CD-S (Outdoor unit) Model SRK20CD-S Item (1) Operation data(1) Cooling capacity Power source Cooling input Running current (Cooling) Inrush current COP Noise level Cooling Refrigerant piping Exterior dimensions Height × Width × Depth Color Net weight Refrigerant equipment Compressor type & Q’ty Motor Starting method Heat exchanger Refrigerant control Refrigerant(3) Refrigerant oil Deice control Air handling equipment Fan type & Q’ty Motor Air flow (at High) Air filte
Model SRK28CD-S (Indoor unit) SRC28CD-S (Outdoor unit) Model SRK28CD-S Item Operation data(1) Cooling capacity(1) Power source Cooling input Running current (Cooling) Inrush current COP Noise level Cooling Refrigerant piping Exterior dimensions Height × Width × Depth Color Net weight Refrigerant equipment Compressor type & Q’ty Motor Starting method Heat exchanger Refrigerant control Refrigerant(3) Refrigerant oil Deice control Air handling equipment Fan type & Q’ty Motor Air flow (at High) Air filter
Model SRK40CD-S (Indoor unit) SRC40CD-S (Outdoor unit) Model SRK40CD-S Item Operation data(1) Cooling capacity(1) Power source Cooling input Running current (Cooling) Inrush current COP Noise level Cooling Refrigerant piping Exterior dimensions Height × Width × Depth Color Net weight Refrigerant equipment Compressor type & Q’ty Motor Starting method Heat exchanger Refrigerant control Refrigerant(3) Refrigerant oil Deice control Air handling equipment Fan type & Q’ty Motor Air flow (at High) Air filter
2.2 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. 15m Vertical height difference between outdoor unit and indoor unit Max. 10m (Outdoor unit is higher) Max. 10m (Outdoor unit is lower) Rating ± 10% Power source voltage Voltage at starting Min. 85% of rating Frequency of ON-OFF cycle Max. 10 times/h ON and OFF interval Max.
(2) Outdoor unit Models SRC20HD-S, 28HD-S, 20CD-S, 28CD-S Unit: mm Drain holes 50 264.5 404.5 17.8 510 71 340 14 47.4 290 312.5 42.6 13.5 12 139 2-16 x12 720 Terminal block 61.9 39.7 99.9 40° 40° 14.4 Service valve (Liquid) Flare connecting ø6.35 (1/4") 33.3 540 139.3 Service valve (Gas) Flare connecting ø9.52 (3/8") Models SRC40HD-S, 40CD-S Drain hole 50 12 14 49.6 314 290 43.5 12 476 203.1 328 286.4 510 Elogated hole (2-12 x16) 136.
2.4 Piping system Models SRK20HD-S, 28HD-S, 40HD-S Indoor unit Outdoor unit Cooling cycle Heating cycle Flare connecting ( Service valve (Gas) Piping (Gas) 20, 28 : ø9.52 40 : ø12.7 ) Outdoor air temp. thermistor Check joint 4 way valve Accumulator Room temp. thermistor Discharge temp. thermistor Heat exchanger thermistor Heat exchanger Heat exchanger Compressor Piping (Liquid) ø6.
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 Coefficient of cooling & Heating capacity in relation to temperature 1.3 1.2 Cooling 1.1 1.0 Heating 0.9 0.8 0.7 0.6 Outdoor air D.B. temperature °C D.B.
BR WH - RD J CC G 2 12 - 52C 1 CNG Symbol Th1 Th2 Th4 Th5 Th6 Tr CFO 1 Y/GN F (250V 3.15A) D.S Th1 52X3 Parts name Th5 Symbol ZNR 20S 52C DS 52X1-3 EEV 51C Printed circuit board Th4 Th2 Parts name Varistor 4 way valve (coil) Magnetic contactor Diode stack Auxiliary relay Electronic expansion valve Motor Protector for CM Опубликовано TopClimat 52X1 CNE Th6 Room temp. thermistor Heat exchanger thermistor (Indoor unit) Heat exchanger thermistor (Outdoor unit) Outdoor air temp.
Outdoor unit Indoor unit TB Y/GN LB BR WH - RD J G CC 2 G1 J 51C 1 BK CM1 52X1 F (250V 3.15A) 13 - IC8 52C CNU ZNR CFO 1 F (250V 3.15A) 5 FMo ZNR D.S 3 Printed circuit board 52X2 CNM SM CNG CNE Color symbol BK Black BR Brown RD Red LB Light blue WH White Y/GN Yellow/Green Wireless R-Amp Th1 Parts name Capacitor for FMI Compressor motor Fuse Fan motor (Indoor) Fan motor (Outdoor) Flap motor Symbol Th1 Th2 Th4 Th5 Th6 Tr Th5 Th6 Parts name Room temp.
4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 4.1 Operation control function by remote control switch Remote controller Models All models S Operation section FAN SPEED button Each time the button is pushed, the cator is switched over in turn. OPERATION MODE select button indi- Each time the button is pushed, the cator is switched over in turn. HI POWER ECONO AUTO HI MED LO HI POWER button This button changes the HI POWER mode.
Unit indication section Models All models RUN (HOT KEEP) light (green) • Illuminates during operation. • Flashes at air flow stop due to the ‘HOT KEEP’. (Heat pump type only) TIMER light (yellow) Illuminates during TIMER operation. HI POWER light (green) Illuminates during HI POWER operation. ECONOMY light (orange) Illuminates during ECONOMY operation. 4.
4.4 Flap control Control the flap by AIRFLOW button on the wireless remote controller. (1) Air scroll The flap will be automatically set to the angle of air flow best to operation. (a) Starting time of operation During cooling and s dry operation t During heating s operation t Stops for approximately 5 seconds in the horizontal position. Thick line : Rapid movement Thin line : Slow movement Stops for approximately 5 seconds in this position.
4.6 Outline of heating operation (Heat pump type only) (1) Operation of major functional components Functional components Indoor fan motor (2) Item When the compressor command is OFF When the compressor command is ON When the compressor goes OFF due to an abnormal stop.
(b) When the compressor and outdoor fan are stopped 1) While the compressor operation is delayed. 2) Up until 5 minutes have passed since the end of a compressor Speed 6 Speed 4 Speed 2 Speed 2 Auto fan control, or the set fan speed start delay operation, when 52C goes OFF, the indoor unit’s fan speed changes forcibly from OFF OFF to speed 1. Model : 20 Model : 28 Model : 40 25 30 30 30 34 37 34 40 43 Indoor heat exchanger temp.
(c) Operation of functinal components during defrosting operation ON Compressor command OFF Hot keep Controlled by the indoor heat exchanger temperature Hot keep ON Indoor unit fan OFF The chart at left is for reference. Hot keep control governs operation during heating. Lit Operating lamp Flashes ON Outdoor unit fan OFF ON 4-way valve OFF Defrost start operation 120 sec. Defrost operation 120 sec. Operation after defrost is ended.
4.7 Outline of cooling operation (1) Operation of major functional components Item When the compressor command is OFF When the compressor command is ON When the compressor goes OFF due to an abnormal stop.
4.8 Outline of dehumidifying operation (1) 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 0 +3 Room temp. – Setting temp.(deg) (2) Start up operation C.D Block A.
4.9 Automatic operation (1) 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.) Operation mode 21˚C < = Room temp.<26˚C Room temp.<21˚C Room temperature Heating Heat pump type Cooling only type 26˚C < = Room temp.
4.11 Protective control function (1) Frost prevention for indoor heat exchanger (During cooling or dehumidifying) (a) Operating conditions (i) Indoor heat exchanger temperature (detected with Th2) is lower than 2.5ºC. (ii) 3 minutes elapsed after the start of operation. (b) Detail of anti-frost operation Compressor OFF Indoor fan (c) (2) 1st speed Outdoor fan OFF 4-way valve Stop mode Reset conditions: Indoor heat exchanger temperature (Th2) is higher than 8ºC.
(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.
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.
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. 6.5 cm (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 Right side Left side 10 cm 5 cm space mentioned below can be secured) (d) Where wiring and the piping work will be easy to conduct.
5.2 Installation of indoor unit Installation of installation board Fixing of installation board Look for the inside wall structures (Intersediate support or pillar and firaly install the unit after level surface has been checked.) 450 INSTALLATION SPACE (INDOOR UNIT) (FRONT VIEW) Unit : mm Speace for service 50 Speace for service 100 117.5 580 216.5 148.5 450 216.5 44.
(3) Preparation of indoor unit (a) 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. CENELEC code for cables. Required field cables. H05 RNR3G1.
(4) Installation of 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 the lower part of the indoor unit so that the unit is fixed in position. ¡ When removing the indoor unit 1) Disconnect the lid at right and left. Mounting plate 2) Pull down the stoppers (right and left) proWall vided at the bottom of the indoor unit base. (See the detail view shown at right.
(2) Connection of refrigerant piping Outdoor unit side Indoor unit side ¡ Connect firmly gas and liquid side pipings by Torque wrench. ¡ Connect firmly gas and liquid side pipings by Torque wrench. Spanner (for fixing the piping) Torque wrench ¡ Specified torquing value: Liquid side (ø6.35) : 14.0~18.0N·m (1.4~1.8kgf·m) Gas side (ø9.52) : 34.0~42.0N·m (3.4~4.2kgf·m) (ø12.7) : 49.0~61.0N·m (4.9~6.1kgf·m) ¡ Specified torquing value: Liquid side (ø6.35) : 14.0~18.0N·m (1.4~1.8kgf·m) Gas side (ø9.52) : 34.
5.5 Test run (1) Conduct trial run after confirming that there is no gas leaks. (2) When conducting trial run set the remote controller 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. (3) Insert in electric plug into the electric outlet and make sure that it is not loose.
5.6 Precautions for wireless remote controller installation and operation (1) Wireless remote controller covers the following distances: (a) When operating facing the air conditioner: 6 m ss le or Wireless remote controller 5 m or less or les s or le ss or less Notes (1) The remote controller is correctly facing the sensing element of the air conditioner when being manipulated. (2) The typical coverage is indicated (in the left illustration). It may be more or less depending on the installation.
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 understand the function controlled by a micro computer thoroughly, so as not to mistakenly identify correct operations as mis-operations.
(2) Self diagnosis display on indoor unit TIMER lamp ON RUN lamp Outdoor unit LED Trouble Cause 1 time flash OFF Heat exchanger thermistor error ¡ Broken heat exchanger thermistor wire, connector poor connection 2 time flash OFF Room temperature thermistor error ¡ Broken room temperature thermistor wire, connector poor connection 6 time flash OFF Indoor fan motor error ¡ Defective fan motor, connector poor connection TIMER lamp RUN lamp keeps flashing Outdoor temperature thermistor error
Current cut [compressor lock] NO Is the service valve open? Service valve opened. YES NO Is there any shortcircuit? YES Inspect compressor. Secure space for suction and blow out. ¡ Check compressor wiring visually. If check results are normal, compressor is locked. ¡ Check insulation resistance. (1 MΩ or over) ¡ Check coil wire resistance. (Few Ω) [Compressor faulty, compressor wiring disconnected.
[Wiring error including power cable, defective indoor/ outdoor unit PCB] Serial signal transmission error NO Does error persist after power reset? Trouble by transient cause, not unit trouble. YES NO Is there any wrong connection on indoor/outdoor unit wiring? Correct improper wire connection on indoor/ outdoor unit. YES Is DC 0~Approx. 12V detected between 2~3 terminals on indoor unit terminal block? NO Defective indoor unit PCB YES Is DC 0~Approx.
(5) Inspection procedures of indoor electrical equipment Is fuse (3.15A) blown? NO Replace fuse. YES Is voltage applied between terminals 1~2 on terminal block? (AC 220/230/240V) NO Replace PCB. YES Is DC 0~12V detected between terminals 2~3 on terminal block? NO Replace PCB. YES Indoor electrical equipment are normal. Notes (1) Since the communication timing signal is transmitted only when the 52C is turned ON, check it under the operating condition. (2) Check the voltage on the terminal block.
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. ¡ Evacuation procedure (a) Check to ensure that there is no internal pressure in the unit.
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 - 2- Опубликовано TopClimat No.024(1.
