© panasonic corporation 2015 order no: papamy1503095ce air conditioner indoor unit outdoor unit cs-e12rb4uw cs-e18rb4uw cu-e12rb4u cu-e18rb4u destination usa canada op en cl os e cl os e op en pow er t im er air swin g o ff /on m o d e powerful/ quiet t e m p o f f/ o n t im e r s e t c a n c e l o ...
2 table of contents page page 1. Safety precautions ............................................. 3 2. Specifications ..................................................... 5 3. Features ............................................................. 11 4. Location of controls and components .............
3 1. Safety precautions read the following “safety precautions” carefully before perform any servicing. electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. the caution items state...
4 warning 20. During pump down operation, stop the compressor before remove the refrigeration piping. (removal of compressor while compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.) 21. After co...
5 2. Specifications model indoor cs-e12rb4uw outdoor cu-e12rb4u performance test condition ari power supply phase, hz single, 60 v 208 230 min. Mid. Max. Min. Mid. Max. Cooling capacity kw 1.20 3.48 3.90 1.20 3.48 3.90 btu/h 4100 11900 13300 4100 11900 13300 kcal/h (frig./h) – – – – – – running curr...
6 model indoor cs-e12rb4uw outdoor cu-e12rb4u indoor fan type backward fan material abs motor type dc / transistor (8-poles) input power w – output power w 40 speed qlo cool rpm 330 heat rpm 410 lo cool rpm 370 heat rpm 460 me cool rpm 460 heat rpm 540 hi cool rpm 560 heat rpm 620 shi cool rpm 600 h...
7 model indoor cs-e12rb4uw outdoor cu-e12rb4u piping pipe diameter (liquid / gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) standard length m (ft) 7.5 (24.6) length range (min – max) m (ft) 3 (9.8) ~ 20 (65.6) i/d & o/d height different m (ft) 15.0 (49.2) additional gas amount g/m (oz/ft) 20 (0.2) length f...
8 model indoor cs-e18rb4uw outdoor cu-e18rb4u performance test condition ari power supply phase, hz single, 60 v 208 230 min. Mid. Max. Min. Mid. Max. Cooling capacity kw 1.17 5.13 5.47 1.17 5.13 5.47 btu/h 4000 17500 18700 4000 17500 18700 kcal/h (frig./h) – – – – – – running current a – 9.1 – – 7....
9 model indoor cs-e18rb4uw outdoor cu-e18rb4u indoor fan type backward fan material abs motor type dc / transistor (8-poles) input power w – output power w 40 speed qlo cool rpm 360 heat rpm 430 lo cool rpm 390 heat rpm 450 me cool rpm 540 heat rpm 610 hi cool rpm 700 heat rpm 770 shi cool rpm 750 h...
10 model indoor cs-e18rb4uw outdoor cu-e18rb4u piping pipe diameter (liquid / gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) standard length m (ft) 7.5 (24.6) length range (min – max) m (ft) 3 (9.8) ~ 30.5 (100.0) i/d & o/d height different m (ft) 15.0 (49.2) additional gas amount g/m (oz/ft) 25 (0.3) leng...
11 3. Features inverter technology o wider output power range o energy saving o quick cooling o quick heating o more precise temperature control environment protection o non-ozone depletion substances refrigerant (r410a) long installation piping o cs-e12rb4uw, cu-e12rb4u long piping up to 20 m...
12 4. Location of controls and components 4.1 indoor unit 4.2 outdoor unit 4.3 remote control op en cl os e cl os e op en pow er tim er air sw in g off /o n power (green) timer (orange) powerful (orange) quiet (orange) auto air swing (orange) control panel receiver auto off/on button airflow directi...
13 5. Dimensions 5.1 indoor unit 22(55/64) 47 (1-17/32) 1 34 (5 -9/ 32 ) 61 (2 -13/3 2) 51 (2-1/64) mode p o w e r fu l / q u ie t temp off/on timer set cancel on off 1 2 3 a ir s w in g fa n s p e e d s e t c h e c k c l o c k r e s e t a c r c f a n s p e e d a i r s w i n g a u t o h e a t c o o ...
14 5.2 outdoor unit 5.2.1 cu-e12rb4u 5.2.2 cu-e18rb4u unit : mm (inch) 780 (30-23/32) 24.4 (1) 67.6 (2-5/8) 11.5 (1/2) 54 0 (21 -9 /3 2) (1 8 (3 /4 )) (6 9. 6 (2 -3 /4 )) (6 1. 6 (2- 3/ 8)) 289 (11-13/32) 34 .5 (1 -3 /8 ) 15 5 (6 -1 /8 ) 84 .8 (3 -3 /8 ) 570 (22-1/2) (104.7 (4-1/8)) 104.9 (4-1/8) 60...
15 6. Refrigeration cycle diagram indoor outdoor intake temp. Sensor pipe temp. Sensor 1 pipe (inlet) temp. Sensor 2 air temp. Sensor pipe temp. Sensor liquid side 2-way valve 3-way valve gas side cooling heat exchanger (evaporator) heat exchanger (condenser) heating compressor 4-way valve muffler h...
16 7. Block diagram 7.1 cs-e12rb4uw cu-e12rb4u fus e sc drain pu m p fa n mo t o r (o utdo or uni t ) (i ndo or uni t) 1 2 3 co m p re ss o r nois ef ilter ms 3~ m q1 fuse 103 fa n m ot or ry -c c101 4- w a ys va lv e sc ex p a n s io n va lv e rea c t o r pt c pt c pt c1 pt c2 ry -a c 1 ry -p w r n...
17 7.2 cs-e18rb4uw cu-e18rb4u (o utdoo r uni t) fus e sc dra in pu mp fa n mot o r (i ndoo r u n it ) si ngl e pha s e po w e r s uppl y l 1 2 3 n ms 3~ u p fus e 1 db 3 q1 ry -c 4- w a ys va lv e ry -h o t cr3 db 1 n v w m he a t e r th1 ntc sc db 2 f u se2 pt c 2 ct400 re ac to r th2 ntc pt c 1 ry...
18 8. Wiring connection diagram 8.1 indoor unit t˚ t˚ t˚ y b w bl r c o mmunic a ti on circui t noise fi lter ci r c uit r e c t if ic a t io n ci r c uit rectifi c a t ion circuit rectifi c a t ion circuit m cn -fm (wht) 7 6 5 4 1 2 1 g bl w r y/g g 01(g rn) ac 0 1 (b lk ) ac 0 2 (w h t ) a c 03 (r...
19 8.2 outdoor unit 8.2.1 cu-e12rb4u resistance of compressor windings model cu-e12rb4u connection 5rs102xha21 u-v 1.741 Ω u-w 1.711 Ω v-w 1.765 Ω note: resistance at 20°c of ambient temperature. Air temp. Sensor (thermistor) piping temp. Sensor (thermistor) compressor temp. Sensor (thermistor) (red...
20 8.2.2 cu-e18rb4u resistance of compressor windings model cu-e18rb4u connection 5kd240xaf21 u-v 0.720 Ω u-w 0.726 Ω v-w 0.708 Ω note: resistance at 20°c of ambient temperature. Electronic controller (noise filter) fg1 (green) noise filter circuit communication circuit cn-blk (black) ac-blk (black)...
21 9. Electronic circuit diagram 9.1 indoor unit t˚ t˚ t˚ y b w bl r communication circuit noise filter circuit rectification circuit rectification circuit rectification circuit m cn-fm (wht) 7 6 5 4 1 2 1 g bl w r y/g g01(grn) ac01(blk) ac02(wht) ac03(red) fuse01 t3.15a l250v transformer motor drai...
22 9.2 outdoor unit 9.2.1 cu-e12rb4u sensor (thermistor) characteristics 70 60 50 40 30 20 10 0 -10 (14) 0 (32) 10 (50) r e si st a n c e (k ) 20 (68) 30 (86) 40 (104) 50 (122) temperature °c (°f) temperature °c (°f) 1 2 1 2 outdoor air sensor outdoor heat exchanger sensor compressor temp. Sensor (t...
23 9.2.2 cu-e18rb4u electronic controller (noise filter) fg1 (green) noise filter circuit communication circuit cn-blk (black) ac-blk (black) cn-wht (white) ac-wht (white) rectification circuit rectification circuit switching power supply circuit fuse1 (t3.15a l250v) fuse2 (t3.15a l250v) fuse3 (25a,...
24 10. Printed circuit board 10.1 indoor unit 10.1.1 main printed circuit board cn-stm2 cn-stm1 cn-fm t-blk1 cn-drmtr1 t-blk2 cn-t2 cn-t1 cn-cnt cn-th2 jp3 (random auto restart enable/disable) cn-th1 sw01 sw02.
25 10.1.2 display printed circuit board cn-disp.
26 10.2 outdoor unit 10.2.1 main printed circuit board 10.2.1.1 cu-e12rb4u cn-dcfm fg1 cn-stm cn4 cn5 cn-tank cn-th cn-hot current transformer (ct) data ac-wht ac-blk power transistor (ipm).
27 10.2.1.2 cu-e18rb4u power transistor (ipm) cn-com current transformer (ct) ac-blk cn-ht cn-hot cn-acfm cn-tank cn-th1 cn-ev ac-wht.
28 10.2.2 noise filter printed circuit board 10.2.2.1 cu-e18rb4u cn-com cn-blk cn-wht fg1 com3 acl1 acn1.
29 11. Installation instruction 11.1 indoor unit 11.1.1 selecting the location for the indoor unit provide a check port on the piping side ceiling for repair and maintenance. install the indoor unit once the following conditions are satisfied and after receiving the customer approval. 1 the indoor...
30 11.1.2 installation of indoor unit this air conditioner uses a drain up motor. Horizontally install the unit using a level gauge. Ceiling opening dimensions and hanging bolt location the paper model for installation expand or shrink according to temperature and humidity. Check on dimensions befor...
31 vacuum drying after completing the piping connection, execute vacuum drying for the connecting piping and the indoor unit. The vacuum drying must be carried out by using the service ports of both the liquid and gas side valves. Caution use two wrenches and tighten with regular torque. Do not over...
32 11.1.5 heat insulation be sure to perform heat insulation on the drain, liquid and gas piping. Imperfection in heat insulation work leads to water leakage. 1 use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 248°f (120°c)). 2 precautions in h...
33 11.1.6 connecting the cable to the indoor open the control board cover by removing 2 pcs of screw. unscrew and open the conduit cover upper case. Remove the plug and fix the conduit connector to conduit cover with lock nut. connecting wire between indoor unit and outdoor unit should be ul l...
34 2 fitting the decorative panel o temporarily secure the fixing screws (3 pcs.) before fitting the decorative panel. (for temporarily securing the front grille.) o place decorative panel on the screws (3 pcs.) before fitting, move decorative panel as illustrated and tighten all the screws (4 pcs.)...
35 11.2 outdoor unit 11.2.1 select the best location if an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed. there should not be any animal or plant which could be affected by hot air discharged. keep the spac...
36 11.2.3 connect the piping 11.2.3.1 connecting the piping to indoor unit please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe. (in case of using long piping) connect the piping align the center of piping and sufficiently tighten the flare nu...
37 11.2.4 evacuation of the equipment when installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure. 1 connect a charging hose with a push pin to the low side of a charging set and the service port of the 3-way valve. 2 connect the micron...
38 9 secure the wire onto the control board with the holder (clamp). 10 after completing wiring connections, reattach the particular plate and control board cover (metal and plastic) to the original position with the screws. 11 for wire stripping and connection requirement, refer to instruction 11.1...
39 11.2.7 disposal of outdoor unit drain water if a drain elbow is used, the unit should be placed on a stand which is taller than 1-3/16" (3 cm). if the unit is used in an area where temperature falls below 32°f (0°c) for 2 or 3 days in succession, it is recommended not to use a drain elbow, fo...
40 12. Operation control 12.1 basic function inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintai...
41 12.1.5 automatic operation this mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature. during operation mode judgment, indoor fan motor (with speed of lo-) is running for 30 seco...
42 ii auto fan speed [cooling, dry] according to room temperature and setting temperature, indoor fan speed is determined automatically. when set temperature is not achieved, the indoor fan will operate according to pattern below. when set temperature achieved, the indoor fan speed will be fix...
43 12.4 airflow direction 1. There is one type of airflow, vertical airflow (directed by horizontal vane). 2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature and intake air temperature) and manual (angles of direction can...
44 12.6 quiet operation (heating) purpose o to provide quiet heating operation compare to normal operation. control condition o quiet operation start condition when “powerful/quiet” button at remote control is pressed. Powerful/quiet led illuminates. O quiet operation stop condition when one of ...
45 12.9 auto restart control when the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes. thi...
46 13. Protection control 13.1 protection control for all operations 13.1.1 restart control (time delay safety control) the compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing off/on button at remote control within this per...
47 13.1.4 compressor overheating prevention control instructed frequency for compressor operation will be regulated by compressor top temperature. The changes of frequency are as below. if compressor top temperature exceeds 107°c (224.6°f), compressor will be stopped, occurs 4 times per 20 minut...
48 13.2 protection control for cooling & soft dry operation 13.2.1 outdoor air temperature control the compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below. this control will begin 1 minute after the compressor starts. compresso...
49 13.2.5 dew prevention control 1 to prevent dew formation at indoor unit discharge area. this control will be activated if: o outdoor air temperature and indoor pipe temperature judgment by microcontroller is fulfilled. O when cooling or dry mode is operated more than 20 minutes or more. thi...
50 13.3.3 overload protection control the compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown below. if the heat exchanger temperature exceeds 60°c (140°f), compressor will stop. 13.3.4 low temperature compressor oil return control in heating...
51 14. Servicing mode 14.1 auto off/on button 1 auto operation mode the auto operation will be activated immediately once the auto off/on button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction. 2 test run operation...
52 control receiving sound off/on mode is in standby condition) and press “ac reset” button at remote control. Press “auto off/on button” to toggle remote control receiving sound. O short “beep”: turn off remote control receiving sound. O long “beep”: turn on remote control receiving sound. After au...
53 14.3 remote control button 14.3.1 set button to check remote control transmission code and store the transmission code to eeprom: o press “set” button continuously for 10 seconds by using pointer. O press “timer set” button until a “beep” sound is heard as confirmation of transmission code chan...
54 14.4 outdoor pcb test run operation (for pump down/servicing purpose) the test run operation will be activated by short-circuiting cn-s (pin 1 and 2) at outdoor unit pcb after power supplied to outdoor unit terminal 1 and 2. The unit forced to run rated frequency cooling operation mode. Cu-e12r...
55 cu-e18rb4u power transistor (ipm) cn-com cn-s current transformer (ct) ac-blk cn-ht cn-hot cn-acfm cn-tank cn-th1 cn-ev ac-wht.
56 15. Troubleshooting guide 15.1 refrigeration cycle system in order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a f...
57 15.1.1 relationship between the condition of the air conditioner and pressure and electric current condition of the air conditioner cooling mode heating mode low pressure high pressure electric current during operation low pressure high pressure electric current during operation insufficient refr...
58 15.2 breakdown self diagnosis function 15.2.1 self diagnosis function (three digits alphanumeric code) once abnormality has occurred during operation, the unit will stop its operation, and timer led blinks. although timer led goes off when power supply is turned off, if the unit is operated u...
59 15.3 error codes table diagnosis display abnormality / protection control abnormality judgment protection operation problem check location h00 no memory of failure — normal operation — — h11 indoor/outdoor abnormal communication after operation for 1 minute indoor fan only operation can start by ...
60 diagnosis display abnormality / protection control abnormality judgment protection operation problem check location f95 outdoor cooling high pressure protection 4 times happen within 20 minutes — cooling high pressure protection check refrigeration system outdoor air circuit f96 power transis...
61 15.4 self-diagnosis method 15.4.1 h11 (indoor/outdoor abnormal communication) malfunction decision conditions during startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction caused faulty ...
62 15.4.2 h12 (indoor/outdoor capacity rank mismatched) malfunction decision conditions during startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction caused wrong models interconnected. wrong indoor unit or outdoor unit pcbs mounted. indo...
63 15.4.3 h14 (indoor intake air temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors. Malfunction caused faulty connector con...
64 15.4.4 h15 (compressor temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors. Malfunction caused faulty connector connectio...
65 15.4.5 h16 (outdoor current transformer) malfunction decision conditions an input current, detected by current transformer ct, is below threshold value when the compressor is operating at certain frequency value for 3 minutes. Malfunction caused lack of gas broken ct (current transformer) ...
66 15.4.6 h19 (indoor fan motor – dc motor mechanism locked) malfunction decision conditions the rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550rpm or malfunction caused operation stops due to short circuit in...
67 15.4.7 h23 (indoor pipe temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction caused faulty connector conne...
68 15.4.8 h24 (indoor pipe temperature sensor 2 abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor 2 are used to determine sensor errors. Malfunction caused faulty connector c...
69 15.4.9 h27 (outdoor air temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors. Malfunction caused faulty connector connection. f...
70 15.4.10 h28 (outdoor pipe temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction caused faulty connector connection. ...
71 15.4.11 h30 (compressor discharge temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction caused faulty conn...
72 15.4.12 h33 (unspecified voltage between indoor and outdoor) malfunction decision conditions the supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction caused wrong models interconnected. wrong indoor unit and outdoor unit pcbs used. indoor unit or ou...
73 15.4.13 h97 (outdoor fan motor – dc motor mechanism locked) malfunction decision conditions the rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor. Malfunction caused operation stops due to short circuit inside the fan motor winding. op...
74 15.4.14 h98 (error code stored in memory and no alarm is triggered / no timer led flashing) malfunction decision conditions indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation. phenomena: unit is stoppi...
75 15.4.15 h99 (indoor freeze prevention protection: cooling or soft dry) error code will not display (no timer led blinking) but store in eeprom malfunction decision conditions freeze prevention control takes place (when indoor pipe temperature is lower than 2°c (35.6°f)) malfunction caused air...
76 15.4.16 f11 (4-way valve switching failure) malfunction decision conditions when indoor heat exchanger is cold during heating (except deice) or when indoor heat exchanger is hot during cooling and compressor operating, the 4-way valve is detected as malfunction. Malfunction caused indoor heat...
77 15.4.17 f90 (power factor correction protection) malfunction decision conditions to maintain dc voltage level supply to power transistor. to detect high dc voltage level after rectification. Malfunction caused during startup and operation of cooling and heating, when power factor correction...
78 15.4.18 f91 (refrigeration cycle abnormality) malfunction decision conditions the input current is low while the compressor is running at higher than the setting frequency. Malfunction caused lack of gas. 3-way valve close. Troubleshooting when f91 indication happens. For safety reason and ...
79 15.4.19 f93 (compressor rotation failure) malfunction decision conditions a compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction caused compressor terminal disconnect faulty outdoor pcb faulty compressor t...
80 15.4.20 f95 (outdoor high pressure protection: cooling or soft dry) malfunction decision conditions during operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistor. Malfunction caused outdoor heat exchan...
81 15.4.21 f96 (ipm overheating) malfunction decision conditions during operating of cooling and heating, when ipm temperature data (100°c (202°f)) is detected by the ipm temperature sensor. Multi models only o compressor overheating: during operation of cooling and heating, when the compressor ol...
82 15.4.22 f97 (compressor overheating) malfunction decision conditions during operation of cooling and heating, when compressor tank temperature data (112°c (233.6°f)) is detected by the compressor tank temperature sensor. Malfunction caused faulty compressor tank temperature sensor 2/3 way v...
83 15.4.23 f98 (input over current detection) malfunction decision conditions during operation of cooling and heating, when an input over-current (x value in total running current control) is detected by checking the input current value being detected by current transformer (ct) with the compresso...
84 15.4.24 f99 (dc peak detection) malfunction decision conditions during startup and operation of cooling and heating, when inverter dc peak data is received by the outdoor internal dc peak sensing circuitry. Malfunction caused dc current peak due to compressor failure. dc current peak due to d...
85 warning 16. Disassembly and assembly instructions high voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 16.1 disassembly of part...
86 4 to remove the electronic controller, release the 6 hooks that hold it to the control board (fig. 4). Fig. 4 5 remove the front grille by removing the screw a and scr ews b, c & d half way open (fig. 5). Fig. 5 6 remove the air guider and drain pan complete by removing the screws (fig. 6). Fig. ...
87 8 remove the fan motor by release the fan motor lead wire connectors and fan motor screws (fig. 8). Fig. 8 screws connectors.
88 16.2 outdoor electronic controller removal procedure 16.2.1 cu-e12rb4u caution! When handling electronic controller, be careful of electrostatic discharge. 1 remove the 3 screws of the top panel. Fig. 1 2 remove the 6 screws of the front panel. Fig. 2 3 remove the screw of the terminal board cove...
89 16.2.2 cu-e18rb4u caution! When handling electronic controller, be careful of electrostatic discharge. 1 remove the 4 screws of the top panel. Fig. 1 2 remove the 10 screws of the front panel. Fig. 2 3 remove the top cover of the electronic controller. Fig. 3 4 remove the control board. Fig. 4 5 ...
90 17. Technical data technical data provided are based on the air conditioner running under free frequency. 17.1 cool mode performance data unit setting: standard piping length, hi fan, cool mode at 16°c (60.8°f) voltage: 208v/230v 17.1.1 cs-e12rb4uw cu-e12rb4u rated frequency (compressor speed is ...
91 17.1.3 cs-e12rb4uw cu-e12rb4u maximum capacity indoor (°c / °f) outdoor (°c / °f) db wb -17.8 (0) -10 (14) 0 (32) 5 (41) tc shc ip tc shc ip tc shc ip tc shc ip 27 (80.6) 19.0 (66.20) 13493 11821 880 13499 11827 892 13424 11923 871 13643 12118 823 22.0 (71.60) 14251 8400 931 14237 8392 942 14285 ...
92 17.2 heat mode performance data unit setting: standard piping length, hi fan, heat mode at 30°c (86°f) voltage: 208v/230v 17.2.1 cs-e12rb4uw cu-e12rb4u rated frequency (compressor speed is fixed during forced heating or cooling for capacity measurement and diagnosis purpose) indoor (°c / °f) outd...
93 18. Service data service data provided are based on the air conditioner running under rated frequency during forced cooling / forced heating mode. 18.1 cool mode outdoor air temperature characteristic condition indoor room temperature: 27°c (80.6°f) dry bulb/19°c (66.2°f) wet bulb unit settin...
94 18.1.2 cs-e18rb4uw cu-e18rb4u -20 (-4) -15 (4.9) -10 (14) -5 (23) 0 (32) 5 (41) 10 (50) 15 (59) 20 (68) 25 (77) 30 (86) 35 (95) 40 (104) 45 (113) 50 (122) outdoor air temperature °c (°f) -20 (-4) -15 (4.9) -10 (14) -5 (23) 0 (32) 5 (41) 10 (50) 15 (59) 20 (68) 25 (77) 30 (86) 35 (95) 40 (104) 45 ...
95 18.2 heat mode outdoor air temperature characteristic condition indoor room temperature: 20°c (68°f) dry bulb/ -°c wet bulb unit setting: standard piping length, forced heating at 30°c (86°f), hi fan compressor frequency: rated for heating operation piping length: 7.5 m (24.6 ft) voltag...
96 18.2.2 cs-e18rb4uw cu-e18rb4u ou tle ta ir °c (°f ) c urre nt (a ) g as s id e p ip in g pr es su re m p a (psi ) 208 230 outdoor air temperature °c (°f) -15 (4.9) -10 (14) -5 (23) 0 (32) 5 (41) 10 (50) 15 (59) 20 (68) 25 (77) 39.0 (102.2) 40.0 (104.0) 41.0 (105.8) 42.0 (107.6) 43.0 (109.4) 44.0 ...
97 18.3 piping length correction factor the characteristic of the unit has to be corrected in accordance with the piping length. 18.3.1 cs-e12rb4uw cu-e12rb4u 18.3.1.1 cooling capacity 18.3.1.2 heating capacity note: the graphs show the factor after added right amount of additional refrigerant. Pipi...
98 18.3.2 cs-e18rb4uw cu-e18rb4u 18.3.2.1 cooling capacity 18.3.2.2 heating capacity note: the graphs show the factor after added right amount of additional refrigerant. Capa ci ty co rre cti o n fact o r piping length m (ft) 0.96 0.97 0.98 0.99 1.00 1.01 1.02 0 (0) 5 (16.4) 10 (32.8) 15 (49.2) 20 (...
99 19. Exploded view and replacement parts list 19.1 indoor unit a a 35 36 37 40 38 41 18 17 16 19 23 15 25 44 42 47 39 22 24.
100 note: the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. O/i i/i i/i 52 53 54 1 4 26 29 27 28 30 33 32 31 51 48 11 14 12 13 9 6 7 2 8 3 21 5 51a 48a.
101 safety ref. No. Part name & description qty cs-e12rb4uw cs-e18rb4uw remark 1 base pan ass’y 1 cwd52k1100 ← 2 inner polystyrene complete 1 cwg07c1047a ← 3 cabinet side plate ass’y 1 cwe041121 ← 4 cabinet side plate ass’y 1 cwe041122 ← 5 lead wire - fan motor 1 cwa67c5136 ← o 6 fan motor 1 ehds50a...
102 safety ref. No. Part name & description qty cs-e12rb4uw cs-e18rb4uw remark 52 operating instruction 1 cwf569879 ← 53 installation instruction 1 cwf616670 ← 54 installation instruction 1 cwf616671 ← (note) all parts are supplied from papamy, malaysia (vendor code: 00029488). “o” marked parts ...
103 19.2 cz-bt20u (front grille complete) note: the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. 13 12 4 21 14 22 5 10 29 8 7 9 24 28 1 6.
104 safety ref. No. Part name & description qty cz-bt20u remark 1 front grille - complete 1 cwe11c6074 4 a.S motor dc single 12v 250 ohm 2 cwa981105j o 5 bracket - a.S.Motor 1 cwd932522 6 vane 4 cwe241159 7 shaft 6 cwh631038 8 shaft 2 cwh631045 9 connector - shaft 4 cwh081007 10 bearing 6 cwh641008 ...
105 19.3 outdoor unit 19.3.1 cu-e12rb4u note: the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. 29 61 32 28 60 27 16 17 15 34 33 25 26 19 39 38 21 20 24 9 14 11 10 50 1 4 23b 23a 2 31 8 7 52 51 53 55 54 35 ...
106 safety ref. No. Part name & description qty. Cu-e12rb4u remark 1 chassis complete 1 cwd50k2081a 2 sound proof material 1 cwg302570 3 fan motor bracket 1 cwd541089 4 screw - fan motor bracket 2 cwh551217 5 fan motor 1 arw6404ac o 6 screw - fan motor mount 4 cwh55252j 7 propeller fan assy 1 cwh03k...
107 19.3.2 cu-e18rb4u note: the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. 47 12 30 6 22 65 38 40 31 51 43 32 48 33 20 19 75 2 76 18 4 3 23 24 69 1 25 81 28 78 79 14 77 8 11 45 10 7 9 71 70 72 74 73 41 4...
108 safety ref no. Description & name qty. Cu-e18rb4u remark 1 chassis complete 1 cwd52k1228a 2 anti - vibration bushing 3 cwh50055 3 compressor 1 5kd240xaf21 o 4 nut - compressor mount 3 cwh561049 5 sound proof material 1 cwg302246 6 fan motor bracket 1 cwd541127 7 fan motor 1 ehds80cac o 8 screw -...
109 safety ref no. Description & name qty. Cu-e18rb4u remark 80 tube assy co. (cap. Tube) 1 cwt01c6093 81 discharge muffler (4 w. Valve) 1 cwb121055 (note) all parts are supplied from papamy, malaysia (vendor code: 00029488). “o” marked parts are recommended to be kept in stock. Printed in malay...