Page 2 - (1) Operation control function by remote controller; MAINTENANCE DATA
- - '10 • SRK-T-100 - 1 - '10 • SRK-T-099 CONTENTS 1. SPECIFICATIONS ........................................................................................ 3 (2) Outdoor units ....................................................................................... 7 ...................................
Page 3 - How to read the model name
- - '10 • SRK-T-100 - 2 - '10 • SRK-T-099 (10) How to make sure of wireless remote controller .................................. 54 (11) Outdoor unit inspection points .............................................................. 55 (8) Phenomenon observed after shortcircuit, wire breakage on senso...
Page 7 - EXTERIOR DIMENSIONS; Wireless remote controller
- - '10 • SRK-T-100 2. EXTERIOR DIMENSIONS (1) Indoor units Models SRK25ZJP-S, 35ZJP-S, 50ZJP-S R K X 0 0 0 Z 5 0 7 G Terminal block F Wireless remote controller Outlet for down piping 㧔 Refer to the above view 㧕 Space for installation and service when viewing from the front D A B E C Hole on wall f...
Page 8 - Terminal block
- - '10 • SRK-T-100 A R C V 0 0 0 Z 0 0 6 (2) Outdoor units Models SRC25ZJP-S, 35ZJP-S Notes 㧔 1 㧕 It must not be surrounded by walls on the four sides. 㧔 2 㧕 The unit must be fixed with anchor bolts. An anchor bolt must not protrude more the 15mm. 㧔 3 㧕 Where the unit is subject to strong winds, la...
Page 13 - TERMINAL
- - '10 • SRK-T-100 R W C 0 0 0 Z 2 3 7 Model SRC50ZJP-S 3 1 2 [ ] N M T2 T1 S （ BK ） （ WH ） （ RD ） V W U PWB ASSY （ MAIN ） M M + + R TRANSISTOR POWER CIRCUIT SWITCHING POWER 250V 2A F1 250V 20A F2 F3 250V 1A W V U P NUNVNW CNTH CNEEV CNFAN t ゜ 3 ～ + ACTIVE FILTER UNIT 250V 20A F8 （ OR ） （ Y ） S-2 t...
Page 14 - Condition; Model SRK25ZJP-S
- - '10 • SRK-T-100 (Outdoor Unit) Model SRC25ZJP-S Noise Level Cooling 46 dB(A) Heating 48 dB(A) (Indoor Unit) Model SRK25ZJP-S Noise Level Cooling 36 dB(A) Heating 35 dB(A) × ...... Cooling, Heating × ...... Cooling, Heating Condition ISO-T1,JIS C9612 4. NOISE LEVEL Model SRK25ZJP-S 10 20 30 40 50...
Page 15 - Model SRK35ZJP-S
- - '10 • SRK-T-100 (Outdoor Unit) Model SRC35ZJP-S Noise Level Cooling 49 dB(A) Heating 51 dB(A) (Indoor Unit) Model SRK35ZJP-S Noise Level Cooling 39 dB(A) Heating 41 dB(A) × ...... Cooling, Heating × ...... Cooling, Heating Condition ISO-T1,JIS C9612 Model SRK35ZJP-S 10 20 30 40 50 60 70 63 125 2...
Page 16 - Model SRK50ZJP-S
- - '10 • SRK-T-100 (Indoor Unit) Model SRK50ZJP-S Noise Level Cooling 47 dB(A) Heating 47 dB(A) × ...... Cooling, Heating × ...... Cooling, Heating Condition ISO-T1,JIS C9612 Model SRK50ZJP-S N50 N30 N40 N60 N70 N20 N50 N30 N40 N60 N70 N20 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 10 ...
Page 17 - PIPING SYSTEM
- - '10 • SRK-T-100 '09•SRK-DB-087D 5 PIPING SYSTEM Models SRK20ZJ-S, 25ZJ-S Model SRK35ZJ-S Humidity sensor (HD) 5. PIPING SYSTEM Model SRK25ZJP-S Model SRK35ZJP-S
Page 20 - How to obtain the cooling and heating capacity
- - '10 • SRK-T-100 (2) Correction of cooling and heating capacity in relation to one way length of refrigerant piping (3) Correction relative to frosting on outdoor heat exchanger during heating How to obtain the cooling and heating capacity = Piping length [m] Cooling Heating 7 1.01.0 10 0.99 1.0 ...
Page 22 - SELECTION OF INSTALLATION LOCATION; INSTALLATION MANUAL; WALL TYPE AIR CONDITIONER; WARNING; R410A REFRIGERANT USED; SAFETY PRECAUTIONS; Check before installation work; EARTHING WORK
- - '10 • SRK-T-100 ○ Conventionally, operate the wireless remote control by holding in your hand. ○ Avoid installing it on a clay wall etc. ⑤ Wood screws ø3.5 X 16 ② Wireless remote control ⑥ Battery Cover ○ Removing ○ Installing How to remove and install the front panel ① Remove the 2 set screws...
Page 26 - CONNECTION OF REFRIGERANT PIPINGS; INSTALLATION OF INDOOR UNIT; INSTALLATION TEST CHECK POINTS; After installation
- - '10 • SRK-T-100 Piping for Gas 380.6 102.5 133.5 202 102.5 206.5 138 INSTALLATION SPACE (INDOOR UNIT) (FRONT VIEW) ○ 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, the...
Page 30 - Remote controller; OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER; (1) Operation control function by remote controller; Operation section; Unit display section
- 29 - '10 • SRK-T-100 Remote controller 9. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER (1) Operation control function by remote controller S Operation section FAN SPEED button Each time the button is pressed, the display is switched over in turn. • The above illustration shows all controls, but i...
Page 31 - Cut the jumper wire shown in the figure at right.
- 30 - '10 • SRK-T-100 (2) Unit ON/OFF button When the remote controller batteries become weak, or if the remote controller is lost or malfunctioning, this button may be used to turn the unit on and off. (a) Operation Push the button once to place the unit in the automatic mode. Push it once more to...
Page 32 - HEAT; Angle of flap from horizontal; Pr
- 31 - '10 • SRK-T-100 (5) Flap control Control the flap by AIRFLOW (UP/DOWN) button on the wireless remote controller. (a) Flap Each time when you press the AIRFLOW (UP/DOWN) button the mode changes as follows. (b) Swing Flap moves in upward and downward directions continuously. (c) Memory ...
Page 33 - The outdoor air temperature ≥_
- 32 - '10 • SRK-T-100 (7) Outline of heating operation (a) Operation of major functional components in heating mode (b) Details of control at each operation mode (pattern) 1) Fuzzy operation Deviation between the room temperature setting correction temperature and the suction air temperature is cal...
Page 34 - (a) Operation of major functional components in Cooling mode; eration mode, changes the operation mode.
- 33 - '10 • SRK-T-100 27.5 25.5 19.5 18 30 (8) Outline of cooling operation (a) Operation of major functional components in Cooling mode (b) Detail of control in each mode (Pattern) 1) Fuzzy operation During the fuzzy operation, the air flow and the compressor command speed are controlled by calcul...
Page 35 - control of the compressor command speed upper is 0 rps.; Indoor heat exchanger; When either of the following condition is satisfied.; Indoor unit heat exchanger temperature(°C); Temperature list
- 34 - '10 • SRK-T-100 (10) Protective control function (a) Frost prevention for indoor heat exchanger (During cooling or dehumidifying) 1) Operating conditions a ) Indoor heat exchanger temperature (Th2) is lower than 5ºC. b) 8 minutes after reaching the compressor command speed except 0 rps. 2) De...
Page 36 - (e) Heating low outdoor temperature protective control; When the either of the following condition is satisfied.
- 35 - '10 • SRK-T-100 (d) Heating overload protective control 1) Operating conditions : When the unit is operating with the compressor command speed other than 0 rps or when the outdoor air temperature sensor (TH2) rose beyond 22(11 or 22)ºC for 30 seconds continuously. 2) Detail of operation: a) T...
Page 37 - ) Detail of operation; Inverter is protected from overcurrent.
- 36 - '10 • SRK-T-100 (f) Compressor overheat protection 1) Purpose: It is designed to prevent deterioration of oil, burnout of motor coil and other trouble resulting from the com- pressor overheat. 2) Detail of operation a) Speeds are controlled with temperature detected by the sensor mounted on t...
Page 38 - (l) Serial signal transmission error protection; Prevents malfunction resulting from error on the indoor; two time but stops the operation at third failure of restart.
- 37 - '10 • SRK-T-100 (i) Outdoor unit failure This is a function for determining when there is trouble with the outdoor unit during air conditioning. The compressor is stopped if any one of the following in item 1), 2) is satisfied. Once the unit is stopped by this function, it is not restarted. 1...
Page 39 - (2) Items to check before troubleshooting; the flaps open manually,
- 38 - '10 • SRK-T-100 10. MAINTENANCE DATA (1) Cautions (a) 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 ...
Page 42 - TIMER light flash
- 41 - '10 • SRK-T-100 (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 t...
Page 43 - Self-diagnosis data; Indicates the number of
- 42 - '10 • SRK-T-100 *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.) *4: When in the ser...
Page 44 - Stop data
- 43 - '10 • SRK-T-100 ② Stop data Remote controller setting Fan speed switching Operation switching Displayed data Temperature setting 21ºC22ºC23ºC24ºC25ºC26ºC27ºC28ºC29ºC30ºC Displays the reason for the stop (stop code) the previous time when the air conditioner was stopped by protective stop cont...
Page 46 - ) Operation switching
- 45 - '10 • SRK-T-100 Note (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.) 0.5 sec. 1.5 sec. RUN light (10’s digit) TIMER light (1’s digit) 11-second interval 0.5 sec. OFF ON ...
Page 47 - Sensor value displayed when the error code is normal
- 46 - '10 • SRK-T-100 (e) Room temperature sensor temperature, indoor heat exchanger sensor temperature, outdoor air tempera- ture sensor temperature, outdoor heat exchanger sensor temperature table Units: ºC Buzzer sound TIMER light (1’s digit) RUN light (10’s digit) Yes (sounds for 0.1 second) 65...
Page 49 - Service data record form
- 48 - '10 • SRK-T-100 Service data record form CustomerDate of investigationMachine name Error code on previous occasion.Room temperature sensor temperature on previous occasion.Indoor heat exchanger sensor temperature on previous occasion.Remote control information on previous occasion.Outdoor air...
Page 50 - (7) Inspection procedures corresponding to detail of trouble; Sensor error; Indoor fan motor error; S e n s o r t e m p e r a t u r e c h a r a c t e r i s t i c s
- 49 - '10 • SRK-T-100 (7) Inspection procedures corresponding to detail of trouble Sensor error [Broken sensor wire, connector poor connection] Is connector connection good? YES YES NO NO Replace PCB. Correct connection. Replace sensor. Is sensor resistance value good? Indoor fan motor error [Defec...
Page 51 - Current cut; Trouble of outdoor unit; Current safe stop
- 50 - '10 • SRK-T-100 Current cut [Open phase on compressor output terminal, compressor lock] YES YES NO NO YES NO ¡ Check compressor wiring visually. ¡ Check insulation resistance. (1 M Ω or over) ¡ Check coil wire resistance. Model 25, 35: 1.703 Ω (U-V, V-W, U-W) or more at 20°C Model 50 : 1.417 ...
Page 52 - Over heat of compressor; Error of signal transmission
- 51 - '10 • SRK-T-100 Over heat of compressor [Gas shortage, defective discharge pipe sensor] Is discharge pipe sensor resistance value good? (page 49) Is sufficient quantity of refrigerant circulated? Defective outdoor PCB YES YES NO NO YES NO Check if there are any places where gas is leaking. Co...
Page 55 - motor is broken down.; ) DC Fan motor resistance check; FM; Indoor PCB
- 54 - '10 • SRK-T-100 (10) How to make sure of wireless remote controller (1) Is remote controller normal? YES Again pushing operating switch Operating the unit? NO Does unit ON/OFF button operates? Operating the unit. NO NO YES YES Remote controller defects Abnormality is not found. Replace the di...
Page 56 - PWB ASSY; EEV; Check point of outdoor unit; CAUTION- HIGH VOLTAGE; Outdoor unit inspection points
- 55 - '10 • SRK-T-100 Color RD Mark Orange OR Yellow ／ Green Y ／ G Black BK Yellow Y White WH Red （ BK ） C-2 G1 （ RD ） （ Y ／ G ） S.IN （ WH ） R.IN （ BK ） （ WH ） （ RD ） PWB ASSY 250V 20A F2 F3 250V 1A F4 250V 10A F1 25 0V 2A CIRCUIT PAM SWITCHING POWER CIRCUIT N P W V U TRANSISTOR POWER W V U FILTER ...
Page 58 - Approx. 5 V is detected for 10 seconds after the power on.; • Inspection of electronic expansion valve as a separate unit; Measure the resistance between terminals with an analog tester.; Outdoor unit fan motor check procedure; ) Disconnect the outdoor unit fan motor connector CNFAN.; ) Fan motor resistance check; Outdoor PCB
- 57 - '10 • SRK-T-100 (a) Inspection of electronic expansion valve Electronic expansion valve operates for approx. 10 seconds after the power on, in order to determine its aperture. Check the operating sound and voltage during the period of time. (Voltage cannot be checked during operation in which...
Page 59 - DATA BOOK; PAC; DRAFT; HYPER INVERTER PACKAGED AIR-CONDITIONERS; CEILING CASSETTE - 4WAY COMPACT TYPE; CEILING SUSPENDED TYPE; INVERTER WALL MOUNTED TYPE
DATA BOOK Manual No. '09 • PAC - DB -136 DRAFT Air-Conditioning & Refrigeration Systems Headquarters16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, JapanFax : (03) 6716-5926 Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without not...
