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Order No. PHAAG0707018C2 Air Conditioners CS/CU-UW9GKE CS/CU-UW12GKE WARNING This serv ice informati on is design ed for experienced repair technicians only a nd is not des igned for us e by the gene ral pu blic. It d oes no t cont ain warnings or cau tions to advise non-tech ical ind ividua ls of potenti al dangers in attempting t o serv ice a product. Pro ducts power ed by electricity should b e serviced or repaired only by experie nced profes sional technicians. Any a ttemp t to service or r epair the pro duct o r products dealt with in th is service informa tion by anyon e else could result in serious injury or death. PRECAUTION OF LOW TEMPERATURE In or der to avoid frostb ite, be assured of n o refri gerant leaka ge dur ing the insta llation or rep airing of refrigerati on circ uit. CONTENTS Page -------------------------------------------------------- 2 ------------------------------------------------------ 3 3 Product Specifications ------------------------------------------ 6 4 Dimensions ----------------------------------------------------- 10 5 Refrigeration Cycle Diagram ----------------------------------- 14 6 Block Diagram -------------------------------------------------- 15 7 Wiring Diagram ------------------------------------------------- 17 8 Operation Details ----------------------------------------------- 19 9 Installation --------------------------------------------------- 29 10 2-way,3-way Valve ----------------------------------------------------- 39 11 Disassembly of The Parts -------------------------------------- 50 Page ---------------------------------------- 53 -------------------------------------------------- 55 14 Exploded View -------------------------------------------------- 58 15 Replacement Parts List ----------------------------------------- 59 16 Exploded View -------------------------------------------------- 60 17 Replacement Parts List ----------------------------------------- 61 18 Exploded View -------------------------------------------------- 62 19 Replacement Parts List ----------------------------------------- 63 20 Exploded View -------------------------------------------------- 64 21 Replacement Parts List ----------------------------------------- 65 1 Features 12 Troubleshooting Guide 2 Functions 13 Technical Data R C Panasonic Home Appliances Air Conditioner (Guangzhou) Co., Ltd. (PHA-AG) All rights reserved. Unauthorized copying and distribution is violation of law. CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 1 Features High Efficiency Envirome ntal Fr iendly (For Refrigerant : R410A Model) Zer o ozone depleting potential and low global Auto Restart Control warming potential by using R410A refr igerant. Automatically restart after power failure Comfort Environment 12-hour Timer Setting Air filter with function to reduce dust and smoke 2 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 2 Functions Remote Control OFF/ON Air SWING Operation START/STOP Turn on/off the air conditi onor Horizont al Airflow Direction Control -Auto Con trol When stop the operat ion by pressing OFF /ON button,t he cursor key po ints -Manual Control Vertical Airfl ow Direction Manual Control to OFF. MODE Airflow Direction Control Operation Mode Selection TEMP Automatic Mod e Operation Room Temperature Setting Temperature Setti ng(16 Heating Mode Operation to 30 ) A uto Operation Cooling Mode Operation Soft Dry Mode Oper ation TIM ER OFF/O N Timer Operation Selection FAN SPEED Stop/Start Operation Control (set the ON/OFF Timer hourly later) Indoor Fan Speed Selection TIMER SET/ CANCEL Low Speed Set /Cancel Timer Operation Medium Speed Set timer/Cancel the set timer High Speed By pressing SET button for 5seconds continuously to switch to set the sensor sensitivity. Automatic Speed 3 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Indoor Unit N ation al Auto Switch Button Power Switch ON/OFF Anti-freezing Control for the Evaporator When the remote control cannot be used or for repairing and testing ,please use this button. Cooling or Soft Dry Operation Signal Receiving Sound Control Warm Booting Control Keep pressing this button for 10seconds to turn on or turn off the signal receiving sound. Indoor fan starts running when temperature of evaporator reaches 30 Auto Restart Control or above. When temperature of evaporator is between Keep pressing this button for 15seconds to switch off Auto Restart Control. To resume Auto Restart Control,repeat the above step. 30 and 34 ,indoor fan will run at Super Low or Low speed. When temperature of evaporator reaches 34 , War m Booting Operation ends. Operation Indication Lamps Power (green) Timer(orange) Lights up in operation; Blinks dur ing Test Run operation and determining Auto Operation mode Indoor Fan Speed Control High,Med,Low Auto Fan Speed Timer in operation Airflow Direction Control Automatic Airflow Dir ection Control Operation Mode The louver automatically swings up and down Cooling/Heating/Soft Dry /Auto Operation Airflow Direction Manual Control Delayed On-timer Control Time Delay Safety Control For cooling or soft dry mode, the unit The unit will restart operation in 3-4 minutes after each pause. starts 15 minutes before the set time with the remote control, but for heating mode 30 minutes before the set time. 7-Minutes Time Save Control 7-minutes automatic restarting at Cooling Operation 4 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Outdoor Unit CU-UW9GKE CU-UW12GKE Anti-reverse Protection Overload Protection Control To protect the compressor from reverse rotation when power off suddenly. When the temperature of evaporator reaches 51 ,outdoor fan stops,and will restart when the temperature of evaporator declines to 49 . When the temperature of evaporator reaches 65 ,compressor will stop. Overload Protector The 2-step Overload P rotector is to protect the compressor when 1)Temperature of compressor reaches 150 2)High temper ature or current enters into the compressor 4-way Valve Control If the unit is stopped dur ing H eating O peration,the 4-way valve w ill r emain in heating mode operation for 5 minutes. 60-seconds Test Operation Control Once the compressor i s activated, it does not stop for 60 seconds. It stops i mmediately with remote control ON/OFF button. Deicing Control Anti-freezing operation for outdoor unit(during Heating Mode Operation only) Temperature of the condenser is tested by sensor. 5 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 3 Product Specifications CS-UW9GKE Unit C U-UW9GKE Cooling Capacity kW 2.50 Heating Capacity kW 2.70 Moi sture Rem oval L /h 1.4 Power Source Phase V Cycle Single 230 50 Airflow Method OUTLET SIDE VIEW TOP V IEW INTAKE m 3/min 7.87 - Indoor Air (medium) m 3/min 9.13 - Indoor Air (high) m 3/min 10.3 24.0 Outdoor Air m 3/min Air Circulation Indoor Air (low) Input W Running Current A EER/COP W/W Starting Current A Inch Inch Inch Inch mm m Piping Connection Port(Flare piping) Piping Size(Flare piping) Inner Diameter Length Power Supply Cord Length (Number of core-wire) Drain Hose Height Width Depth Dimensions Net Weight Compressor m mm mm mm kg Type Motor Air Circulation Type Rated output W type type Input Rated Output Low Fan Med Speed High - Cooling:high48 Cooling:high39,Low31 Heating:high39,Low31 Heating:high49 Cooling:810 Heating:780 Cooling:3.80 Heating:3.70 Cooling:3.08 Heating:3.46 20 G:3-way valve3/8" G:half union3/8" L:2-way valve1/4" L:half union1/4" G:gas side3/8" G:gas side3/8" L:liquid side1/4" L:liquid side1/4" 14 0.6 1.3 3 core-wire/1.0mm 2 250 530 770 650 205 230 7.5 27 Rotary(1 cylinder) Rolling piston type Induction(2 pole) 700 - dB(A) Noise Level Electrical Data - Cross-flow fan Induction(4 pole) 13 940 60 1090 60 1230 60 Motor W W rpm rpm rpm 6 Propeller fan Induction(6 pole) 28 800 60 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Heat Exchanger D escription Tube Material Fi n Type Unit CS-UW9GKE Evaporator Copper Slot type Rows/Stage FPI Dimensions mm Refrigerant Control Device Refrigeration Oil (c.c) Refrigerant (R410A) Thermostat Protection Device Length C irculation Capillary Inner Di ameter g mm L/min mm (Plate fin configuration,forced draft) 2 x 12 2X24 18 18 569.1X 504x36.4 610x252x25.4 540.5 C apillary Tube R868A or FreolAlpha68M ( 320 cm3 ) 800 Electronic Control O.L.P.(230V,37A) 609 10 720 10 10.0 0.2 7.5 0.2 1.4 1.3 P.P. H oneycomb Air Filter Refrigerant Circulation Control Device Compressor Capacitor Fan Motor Capacitor CU-U W9GK E Condenser C opper Corrugation type F, V F, V - Specifications are subj ect to change without notice for further im pr ovem ent. 7 Capi llary 30 F , 370V 2.0 F , 400V CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE CS-UW12GKE Unit CU -U W12GK E Cooling Capacity kW 3.30 Heating Capacity kW 3.70 Moi sture Rem oval L /h 1.9 Power Source Phase V Cycle Single 230 50 Airflow Method OUTLET SIDE VIEW TOP V IEW INTAKE Air Circulation Indoor Air (low) Indoor Air (medium) m 3/min Indoor Air (high) m 3/min Outdoor Air m 3/min 7.96 9.20 - Input W Running Current A EER/COP W/W Starting Current A Inch Inch Inch Inch mm m Piping Connection Port(Flare piping) Piping Size(Flare piping) Inner Diameter Length Power Supply Cord Length (Number of core-wire) Drain Hose Height Width Depth Dimensions Net Weight Compressor m mm mm mm kg Type Motor Air Circulation Type Rated output W type type Input Rated Output Low Fan Med Speed High 31.8 - Cooling:high39,Low32 Cooling:high49 Heating:high39,Low31 Heating:high50 Cooling:1080 Heating:1060 Cooling:5.00 Heating:4.80 Cooling:3.05 Heating:3.49 25 G:half union3/8" G:3-way valve3/8" L:half union1/4" L:2-way valve1/4" G:gas side3/8" G:gas side3/8" L:liquid side1/4" L:liquid side1/4" 14 0.6 1.3 3 core-wire/1.0mm 2 280 540 799 780 183 289 9 30 Rotary(1 cylinder) Rolling piston type Induction(2 pole) 900 - dB(A) Noise Level Electrical Data 7.16 m 3/min Cross-flow fan Induction(4 pole) 18 980 60 1090 60 1260 60 Motor W W rpm rpm rpm 8 Propeller fan Induction(6 pole) 28 800 60 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Heat Exchanger D escription Tube Material Fi n Type Unit CS-UW12GKE Evaporator Copper Slot type Rows/Stage FPI Dimensions mm Refrigerant Control Device Refrigeration Oil (c.c) Refrigerant (R410A) Thermostat Protection Device Length C irculation Capillary Inner Di ameter g mm L/min mm (Plate fin configuration,forced draft) 2 x 15 2X24 20 18 725.1 610x252x25.4 696 X504x36.4 C apillary Tube R868A or FreolAlpha68M ( 320 cm3 ) 980 Electronic Control O.L.P.(230V,37A) 655 10 510 10 9.5 0.2 10.8 0.2 1.4 1.4 P.P. H oneycomb Air Filter Refrigerant Circulation Control Device Compressor Capacitor Fan Motor Capacitor CU -UW12GKE Condenser C opper Corrugation type F, V F, V 1.5 F , 400V * 60g for air purgi ng is not included. Specifications are subject to change without notice for further improvement. 9 Capi llary 30 F , 370V 2.0 F , 400V CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 4 Dimensions Indoor Unit CS-UW9GKE Unit : mm Top view Side view Side view Front View 770 205 Air in take Right Pip ing Hole 61 49 Air ou tlet 5 Left Piping Hole Bottom Piping Hole 49 61 165 Back View Insta llation Plate Hook 56 (43) 410 79 1 6.5 Dimension of installation pla te (Front View) (27.5) (20) (2 6.5) (20) (38 2.2) (95.8) (16) (26.5) (118.2) 4 52 10 0.5 83 .2 0 .5 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Indoor Unit CS-UW12GKE Unit : mm Side view Front View 183 79 9 Air inta ke Left Piping Hole Rig ht Pip ing Ho le Air outlet 61 165 Back V iew Installation P late Hook (100) Ga s Side Liquid Side (50) (420) 56 16.5 D rain Port Installation pla te (Fron t Vie w) A B (13 1) ( 382 ) ( 631 ) 11 ( 118) CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Outdoor Unit Unit : mm CU-UW9GKE Top view 61.6 650 Required space for installation Air intake 10cm 10cm 100cm Air outlet Side view Front View 250 230 668 55.8 61.6 88 88 650 12 293 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Outdoor Unit CU-UW12GKE Unit : mm Top view More than 10cm 105 7 80 5 70 48 More than 10cm More than 100 cm Side view Front View 274 16 320 352 13 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 5 Refrigeration Cycle Diagram INTAK E AI R SE NSOR PIPI NG SENSOR PIPIN G SENSOR 4 -wa y va lve Cool ing Heating 14 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 6 Block Diagram CS-UW9GKE/CU-UW9GKE SSR201 15 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE CS-UW12GKE SSR201 16 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 7 Wiring Diagram CS/CU-UW9GKE WIRELESS REMOTE CONTROL W 1 RECEIVE R COMPLETE ELECTRONIC CONTROLLER 1 1 W 3 CN-STM 3 W W W W W W W W W W 1 AU TO SWIT CH SW 101 10 1 O Y 5 IN DICATOR COMPL ETE BR R W 5 P STEPPING MOTO R 1 CN-FM C-FM 1 B 3 R 5 Y 10 FAN MO TOR P BR C 17 3 FUSE T3 15A L250V BL L Y/G 4 3 L1 C N-FB 1 T01 4 ACW HT CN-TH Cr201 W B SENSOR(PIPING TEMP.) 3 2 SENSOR(INTAKE TEM P.) RY-HOT FM(BLU) BL 1 THERMAL FUSE HOT(RED) R W BR S SR 202 HA 1T 1 2 3 4 Y/G IND OO R U NIT TE RM INAL BOARD 1(L) 2(N) 3 4 102 O UTD OOR UNIT TE RM INAL BOARD 1(L) Y 2(N) 3 FUSE 250V 3A 4 Y W R : RED BL : BLACK B : BLUE BR : BROWN O : OR ANGE YELLOW C 1 OLP (37A 230V) R 3 Y S BLUE FAN MOTOR RED TRADE MARK CO MPRESSOR B R R B CAPACITOR Y-B M Y-R A COMPRESSOR TERMINAL 80 70 B OUTDOOR UNIT 60 50 ) CS-UW9GKE CWA921372 397 40 30 308.1 OUTDOOR FAN MOTOR RESISTANCE( ) 20 CU-UW9GKE CONNECTING CWA951427 10 Y-B 275 Y-R 260 Sensor ( Thermistor ) characteristics C APACITOR IND OOR FAN MOTOR RESISTANCE( CONNECTING GRY : GREY G : GREEN Y : YELLOW W : WHITE Y/G : YELLOW/GREEN 0 -10 0 10 20 Temperature ( R emark: 17 30 40 50 ) :Outdoor Pi pe Temp. Sensor :I ndoor intake/ Outdoor ai r sensor : Indoor pipe Temp. Sens or CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE CS/CU-UW12GKE WIRELESS REMOTE CONT ROL IN DICATOR COMPL ETE S W101 ELECTRONIC CONTROLLER W W W W W W W W W W W 1 11 BR 1 R 1 1 O CN-STM Y 5 P 5 STEPPING MOTOR C N-FM 11 C-FM 1 B 3 R 5 Y FAN MO TOR P BR C P3 3 FUSE L Y/G 1 T T 3 15A L 250 V BL W BR L01 BL SENSOR (PIPING TEMP.) L4 1 ACWHT 3 Cr W R HOT(RED) B FM(BLU) RY-HOT SS R202 L VEN TILATOR IN TERLOCKING UNIT OPTIONAL C AUTO SW 1T Y/G IND OO R U NI T TERM INAL BOARD 1(L) 2(N) 3 4 INDOOR UNIT FUSE 250V 3A 250V 3A T HERMA L FUS E 102 O UTDOOR UNIT TERM INAL BOARD 1(L) 2(N) 3 102 4 YELLOW C R : RED BL : BLACK B : BLUE BR : BROWN O : ORANGE Y W R S BLUE RED FAN MOTOR Y TRADE MARK CO MPRESSO R COMPRESSOR TERM INAL B R R GRY : GREY G : GREEN Y : YELLOW W : WHITE Y/G : YELLOW/GREEN B CAPACITOR CAPACITOR B 80 OUTDOOR UNIT Sensor ( Thermistor ) characteristics 70 INDOOR FAN MOTOR RESISTANCE( 60 ) 50 CS-UW12GKE CONNECTING CWA921378 Y-B Y-R M A 40 419.8 304.4 30 OUTDOOR FAN MOTOR RESISTANCE( 20 ) CU-UW12GKE 10 CONNECTING CWA951427 275 Y-B Y-R 260 0 -10 0 10 20 30 40 50 Temperature ( ) R emark: 18 :Outdoor Pi pe Temp. Sensor :I ndoor intake/ Outdoor ai r sensor : Indoor pipe Temp. Sensor CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 8 Operation Details 8.1 Cooling Mode Operation. When selecting the Cooling Mode Operation, the unit will operate according to the setting by the Remote Controller or the control panel on the indoor unit and the operation is as the following. Time Delay Safety Control 3 min.----If the compressor stops, it will not restart within 3 minutes.(Protection of compressor). 7 Minutes Time Save Control 7 min.----The unit will automatically operate in 7 minutes even if the room temperature is not reached. (Prevention of raising the humidity) Evaporator Temperature Anti-Freezing Control ( If temperature of evaporator is lower than 2 continuously for 4 minutes, the compressor will cease to pr event the evaporator from freezing. Fan speed setting will not be changed. When temperature of evaporator reaches 10 ,compr essor will restart. ) Restart 10 4 minutes 2 C ompressor cease s During Cooling Mode Operation, the Time Delay Safety Control is available. Time Automatic Fan Speed Mode During Cooling Mode Operation, use remote controller to select Automatic Fan Speed. Fan speed will be at the point between "High speed" and "Medium speed". Deodorization control. 2 1 Slow Slow Slow Slow Indoor Fan STOP 40 Compressor 30 20 STOP STOP 16 0 40 STOP ON 1 Fan speed will be at Hi till the compressor ceases (set temperature reached). 2 Fan speed will be at Me when the compressor restarts. 19 30 ON CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Time Graph for Cooling Operation Intake air te mperature a b c d e f g h i j k l mn o p q r s t u v w x y z Start 1.5 Set temp erature Stop 31 29 10 Evaporater temperature Basic Time 1 1 3 7 2 1 4 3 Comp. Indoor Fan Outdoor Fan Operation Indicator Operation status : Time delay safety control : Compressor Test control : Auto restart control : Anti-freezing Control d-g g-h h-o q-t 8.2. Time Operate Stop Soft Dry Mode Operation Operation area COO LING COOLING(OFF) COOLING(ON) 1 .5 DRY(ON) DRY DRY(OFF) 1 .0 DRY(ON) DRY(OFF) When selecting Soft Dry mode operation, the operation will be cooling until the room temperature reaches the set temp on remote control, and then Soft Dry will be activated. (During Soft Dry Mode the fan of indoor unit will operate at super low speed. The soft dry mode will run for less than 10 minutes.) Once Soft Dry mode operation is turned off, indoor fan, compressor and outdoor fan will stop for 6 minutes. Time Delay Safety Protection During cooling mode operation, if the compressor ceased, it will not restart within 3 minutes. Anti Freezing Control Same as the denotation in Cooling Operation.( P19 ) (During Soft Dry Mode Operation, compressor will stop for at least 6 min.) 20 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Automatic Fan Speed During Soft Dry Operation, use re mote controller to select Auto F an Speed mode. Indoor Fan Speed is at L oLo- LoS lo Slo Ind oor fan OFF Slo OFF OFF T1 40 6 T2 T2 70 70 10 10 ON Compressor OFF T1 40 ON OFF Time Graph for soft dry operation a b c d e f g h i j k l m n o p q r s t Intake Air temp Cooling mode operation activated 1.5 1.0 Cooling mode operation stopped Soft mode operation activated Soft dry mode operation stop o Evaporator temperature 10 C o 2C 1 Basic Time 6 6 1 1 6 4 6 Comp. Super Slo Slo Indoor Fan Slo Low Super Slo Low Low Slo Slo Slo Slo Slo Slo Slo Outdoor Fan Operation Indicator 4-way Valve Time Operation status a-c,p-r : c- p ,r - u : : e-f j-l q-t : : Cooling Mode Operation Soft Dry Mode Operation Soft Dry Mode Operation Stopped Compressor Test Operation Control Anti Freezing Control 21 Operate Stop u CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 8.3. Heating Mode Operation When selecting the Heating Mode Operation, the unit will operate according to the setting by the Remote Controller and the operation is as the following. Time Delay Safety Control If the compressor stopped by switching off, turning off by remote controller, or power off, it will not restart within 3 minutes. When room temperature reaches the set temperature on the remote controller, compressor stops and will not restart within 4 minutes. 3 minutes after the compressor stopped, indoor fan will stop for 1 minute. Then indoor fan will resume operation with the speed at super low . Over Load protection Control When temperature of indoor heat exchanger rises to 51 , outdoor fan will stop when temperature of indoor heat exchanger falls to 49 , outdoor fan will restart. When temperature of i ndoor heat exchanger rises to 65 Indoor Heat Exchanger or above, compresso r stops, and wi ll restart 4 minute s l at er. Compressor Compressor Restarts Stops 4 minutes later 65 Anti-reversing Control If the compressor has been continuously running for 5 minutes or longer, and the difference of temperature between intake air and evaporator is continuously lower than 5.0 or below for 2 minutes, the compressor will stop , and then restart 3 minutes later.(Time Delay Protection Control is effective.) Compressor runs T 5 5 min Compressor Compressor Restarts Stops 3 minutes later last for 2 min T= intake air temperature - evaporator temperature 4-way valve control During heating mode operation,4-way valve is at open mode. During heating mode operation,if the unit turned off, the 4-way valve will remain at open mode for 5 minutes. Warm Booting Control When turning on the unit by heatin g mode operation,indoor fan will be activated when temperatur e of indoor heat exchanger reaches 30 . (See the figure on the right) Warm boot operation ends when t emperature of indoor heat exchanger reaches 34 . 22 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Automatic Fan Speed During Heating Operati on, u se remote controller to select Auto Fan Speed mode. Indoor Fan Speed i s between Me and Slo . Manual fan speed Time Graph for Heating Operation 42 a b c d e f g h i j k l m n o p q r Blink Operate 34 Indoor heat exchanget Temp. Stop 32 30 OFF Intake Temp. 2 ON 2'58'' Basic Time 30' 1' 30 150' Compressor Indoor Fan Outdoor Fan Operati on I ndicat or SL O SL O LO - SS LO SS LO 4-way valve <Operation status> a-b : Warm booting control(indoor fan Off) c-d : Warm booting control(indoor fan Super Slo) h - k , o - r : Prevent cool air blowing out 23 SS LO SS L O CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Deice Control Deice operation is to protect the outdoor unit from freezing. Normal Deice Operation Deicing starts 30 minutes after heating mode operation or 60 minutes after the latest deicing operation. If temperature of outdoor piping, tested by TRS, falls to -3 (TRS OFF) or below for continuously 50 seconds, deicing operation starts. Overload Deicing Operation During heating operation, if the accumulative stopping time of outdoor fan reaches 60 minutes, deicing operation will start 1 minute after compressor starts. Deicing operation ends under conditions below (a) After 12 minutes. (b) Temperature of outdoor unit rises to 4 . (c) As the illustration showed bellow and due to Time Delay (Td), deicing won t ends immediately. Once deicing operation starts, it won t end until 60 seconds later. When deicing operation ends, compressor will stop for 30 seconds, and 4-way valve remains at cooling mode operation for 10 seconds. Time Graph for Normal Deicing Operation 42 a b c d e f g h i j k l m n o p q r s t u v w x y z 34 30 m ax60' max60' 6 0' ma x12' ma x12' Ba sic Time 20S 20S Co mpressor Indo or F an Ou tdoor F an Op era tion L ED 4 -way valve a- c c- g h-j, u- w o -r 10S 2 0S 20S 20S Slo Lo Td 10S 20S Slo L o D eici ng c onf irm a ti on D eici ng o per at ion( ti me r es et) Wa rm Bo otin g De ic ing( TRS ) 24 or CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Time Graph for Overload Deicing a b c d e f g h i j k l m n o p q 51 49 Basic time Out door f an stop for 6 0' acc umulatively 20 Compressor Indoor fan Outdoor fan Operation Indicator 4-way valve <Operation status> a-i Overload control i-l Overload deicing(timer) l-m: Warm booting control m-r Overload control 25 20 Max 12 10 20 6 0' CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 8.4. Automatic Mode Operation Standard for Determining Operation Mode First Determination: Intake Air temperature 23 Setting Temperature (Standard) Cooling mode Cooling mode Soft Dry mode 20 Heating mode Soft Dry mode 25 22 Heating mode 21 Second Determination: One hour after the above determination, the unit will operate according to the table below. Second Determi nation Cooling C ooling First determination 23 D ry or above 20 Dry 25 H eating or above or above H eating 23 below 20 below 25 below A) Indoor fan operates at super low speed for 25 seconds. B) After judging indoor air temperature, the operation is determined and operation continued at the mode determined. C) If indoor temperature is less than 16 , heating operation will immediately operate. D) After the operation mode has been determined, the mode does not change. However,Soft Dry mode operation includes cooling mode operation. E) If automatic mode operation is started while the unit is operating,operation will continue. If current operation is in cooling mode (including the cooling mode operation when is a part of Soft Dry mode operation) it will be maintained, and if current operation is not cooling mode, the appropriate operation mode is determined for 25seconds at super slow fan speed.Then the selected mode will continue. F) Room temperature adjustment Higher 2 Standard 0 Low er 2 26 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 8.5 About Cursor Key Which Points To OFF On Remote Control W hen the ON/OFF button on th e remot e contro l is pressed, the cursor key which points to OFF will appear or disappear to in dicate t he ON/OFF status of the air cond itioner. AUTO HEAT COOL DRY OFF AUTO AUTO FAN SPEED AIR SW ING PRESS "OFF/ON" BUTTON AUTO HEAT COOL DRY OFF AUTO AUTO FAN SPEED AIR SW ING For some reason (Ex. The sign al of the rem ote cont rol does not reach the sig nal rece iver of t he indoor unit.), the display of the remote control w ill not correspond wit h the actual ON/OFF stat us of the indoor unit: 1. Th e air co nditi one r is running but the curso r key wh ich points to OFF appears. The air con ditioner can be stopped w ith any button (Excep t for ON /OF F , TIMER SET , TI MER ON ) press ed. 2. Th e air conditioner is on standby, but the cursor key which points to OFF disapp ears. The air con ditioner can be started with any butt on(Except for O N/O FF , TIMER SET , TIMER O FF ) pressed. 8.6. Indoor Fan Motor Control Automatic fan speed control When automatic fan speed set, the available range for fan speed is from Hi to Slo. Manual Fan Speed Control Basic fan speed can be manually adjusted (Lo, Med, Hi) by using the fan speed selection button. Basic Fan Speed Category Hi Me Lo Lo- SLo SSLo Cooling Mode Manual Operation Auto Soft Dry Operation Manual Auto Manual Heating Mode Operation Auto 8.7 Auto restart control If the operation is stopped due to a power failure u nder any operation mode, it wil l r estart automat ical ly under the previous operation mode when the power supply i s resumed. 27 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 8.8 Airflow Direction Control Airflow Direction Auto-control When set at airflow direction auto-control with remote control,the louver swings up and down as shown in the table below. The louver does not swing when the indoor fan stops during operation. When stop the unit with remote control,the discharge vent is closed with the louver. When temperature of indoor heat exchanger reaches 38 during heating mode operation, if temperature falls to 35 ,airflow direction will change from the lower limit to horizontal. The left and right airflow direct ion l ouver can be adj usted manually. Airflow direction manual control When t he airflow directi on set button is pressed,t he a utomatic airflow is released and t he airflow direction louver moves up and down as show n in t hetable below. The louver can be stopped by releasing the button at the desired position. When t he remote co ntrol is used to stop the operation,the discharge v ent i s closed with airflow direction lou ver. Angles Of Airflow Direction Louver 1 2 3 4 5 o 32 Operating Mode Cooling Soft dry Manual o 12 o 26 Auto o 12 ~36 Manua Heating 17 o 9 o 29 44 o 9 ~55 Auto Determining operation mode 36 o o o 21 o o o 55 o o 9 N otes: In heating mode operation 1. Airflow direction automatic control: Airflow direction is automatically adjusted to horizontal direction when the temperature of indoor heat exchanger is low and it will be automatically adjusted downward while the indoor temperature rises. 2. Airflow direction manual control: The airflow direction is automatically adjusted to horizontal direction when temperature of indoor heat exchanger is low .While temperature of indoor heat temperature rises ,the airflow direction is automatically adjusted to the place set by the remote control. In cooling or soft dry mode op eration If the compressor continues to operate for 60 minutes ,and the louver direction is at No 5,the fan speed is below Med, the intake air temperature is below 29 and continues to change between 2 to prevent dew around the discharge vent. 28 for 30 minutes ,the louver direction will be at No 2 in order U El C 10. . U U U U U U U U U U U U U CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 9.2. INDOOR UNIT 9.2.1. SELECT THE BEST LOCATION (Refer to "Select the best location" section) 9.2.2. HOW TO FIX INSTALLATION PLATE 9.2.3. 1. Insert the piping sleeve to the hole. 2. Fix the bushing to the sleeve. The mounting wall is strong and solid enough to prevent it from the vibration. Wall more than 450mm more than 450mm TO DRILL A HOLE IN THE WALL AND INSTALL A SLEEVE OF PIPING 3. Cut the sleeve until it extrudes about 15 mm from the wall. Wall Caution When the wall is hollow, please be sure to use the sleeve for tube ass•y to prevent dangers caused by mice biting the connecting cable. Screw 2 165mm ( E ) 105mm Installation plate 1 A 225mm 4. Finish by sealing the sleeve with putty or caulking compound at the final stage. 145mm C B B (For Models:CS-UW9GKE) More than 450 mm É¿´´ More than 450 mm É¿´´ Í ½®»© 2 ( B ) ײ- ¬¿´´¿¬·±² °´¿¬» 1 Ó»¿- «®·²¹ ¬¿ °» î îì ³³ A ïîë ³³ îïç ³³ ï ëð ³³ (For Models:CS-UW12GKE) The centre of installation plate should be at more than 450 mm at right and left of the wall. The distance from installation plate edge to ceiling should more than 67 mm. From installation plate left edge to unit's left side is 62 mm(CSUW9GKE) or 98(CS-UW12GKE). From installation plate right edge to unit's right is 79 mm (CSUW12GKE) or 112 (CS-UW12GKE). 9.2.4. INDOOR UNIT INSTALLATION 1. For the right rear piping : For left side piping, piping connection for liquid should be about 10 mm from this line. : For left side piping, piping connection for gas should be about 45 mm from this line. : For left side piping, piping connecting cable should be about 785mm (CS-UW9GKE) or 800mm (CS-UW12GKE) from this line. 1. Mount the installation plate on the wall with 5 screws or more. (If mounting the unit on the concrete wall consider using anchor bolts.) Always mount the installation plate horizontally by aligning the marking-off line with the thread and using a level gauge. • 2. Drill the piping plate hole with ø70 mm hole-core drill. according to the arrows marked on the lower left • Line and right side of the installation plate. The meeting point of the extended line is the centre of the hole. Another method is by putting measuring tape at position as shown in the diagram above. The hole centre is obtained by measuring the distance namely 105 mm and 145mm for left and right hole respectively (CSUW9GKE), or 150mm and 125mm for CS-UW12GKE. the piping hole at either the right or the left and the • Drill hole should be slightly slanted to the outdoor side. - 32 - 2. For the right and right bottom piping U U Make sure do not fasten and collect the power supply cord into the piping trough, otherwise, it will cause heat or fire. The power supply cord must not be stucked at the 2 clip-on positions and overly exposed between the mounting plate and the indoor unit. Abnormal noise may be produced. Sleeve for piping hole Drain hose Connecting cable Piping - 33 - More than approx. 95 cm U U U U U U 5 4- U 9.3. HOW TO TAKE OUT FRONT GRILLE Please follow the steps below to take out front grille if necessary such as when servicing. U U OUTDOOR UNIT 9.3.1. SELECT THE BEST LOCATI ON (Refer to "Select the best location section") 9.3.2. INSTALL THE OUTDOOR UNIT 1. Set the vertical airflow direction louver to the horizontal position. 2. Slide down the two caps on the front grille as shown in the illustration at right, and then remove the two mounting screws. U After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram. 3. Pull the lower section of the front grille towards you to remove the front grille. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut. (ø10 mm). When reinstalling the front grille, first set the vertical airflow direction louvre to the horizontal position and then carry out above steps 2 - 3 in the reverse order. 2. When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails. B Unit: mm C A Model B C D 474 87 20 261 CU-UW12GKE 570 103.9 19.5 320 D A CU-UW9GKE AUTO SWITCH OPERATION 9.3.3. The below operations will be performed by pressing the • AUTO switch. CONNECTING THE PIPING 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) 1. AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto Switch is pressed. Connect the piping 2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE) Align the center of piping and sufficiently tighten the flare nut with fingers. The Test Run operation will be activated if the Auto Switch is pressed continuously for more than 5 sec. to below 10 sec. A "Pep" sound will occur at the fifth sec., in order to identify the starting of Test Run operation Further tighten the flare nut with torque wrench in specified torque as stated in the table. 3. REMOTE CONTROLLER RECEIVING SOUND ON/OFF The ON/OFF of Remote Controller receiving sound can be changed over by pressing the "AUTO" Switch continuously for 10 sec. and above. A "Pep" "PeP" sound will occur at the tenth sec., in order to indicate the "ON/OFF" changed over of remote control receiving sound. Piping size (Torque) Gas Liquid 3/8'' (42 N.m) 1/4'' (18 N.m) Connecting The Piping To Outdoor Unit CS-UW9GKE Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (located at valve) onto the copper pipe. CS-UW12GKE Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table. 35 U U U U U U U U G U U G U U U U CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 10 Installation and Serving Air Conditioner Using R410A 10.1. OUTLINE 10.1.1 About R410A Refrigerant 1. Converting air conditioners to R410A Since it was declared in1974 that chlorofluorocarbons (CFC), hydro chlorofluorocarbons (HCFC) and other substances pose a destructive danger to the ozone layer in the earth s upper stratosphere (20 to 40 km above the earth), measures have been taken around the world to prevent this destruction. The R22 refrigerant which has conventionally been used in ACs is an HCFC refrigerant and, therefore, possesses this ozone destroying potential. International regulations (the Montreal Protocol Ozone-Damaging Substances) and the domestic laws of various countries call for the early substitution of R22 by a refrigerant which will not harm the ozone layer. In ACs, the HFC refrigerant which has become the mainstream alternative called R410A. Compared with R22, the pressure of R410A is approximately 1.6 times as high at the same refrigerant temperature, but the energy efficiency is about the same. Consisting of hydrogen (H), fluorine (F) and carbon (C), R410A is an HFC refrigerant. Another typical HFC refrigerant is R407C. While the energy efficiency of R407C is some what inferior to that of R410A, it offers the advantage of having pressure characteristics which are about the same as those of R22, and is used mainly in packaged Acs. 2. The characteristics of HFC (R410A) refrigerants a. Chemical characteristics The c hemical charact erist ics o f R4 10A are similar t o those of R22 in that both are che mically stable, nonflamm abl e ref rigerant s wit h low toxicity. Howe ver, just like R22 , the specifi c gra vity of R410A gas is heavier t han that of air. Becau se o f thi s, it can caus e an oxygen deficiency if it l eaks into a closed room since it collects in the lowe r area of the room. It also gen erates toxic gas when it i sdire ctly exposed to a flame, so it must be used in a well ventila ted envi ronm ent whe re i t will not collec t. Table 1 Physi cal comp arison o f R4 10A and R22 Composition (wt%) R410A R22 R32/R125(50/50) R22(100) -51.4 -40.8 1.56 Mpa(15.9 kgf/cm2) 0.94 Mpa(9.6 kgf/cm2) 64.0 kg/m3 44.4 kg/m3 Non-flammable Non-flammable 0 0.005 1730 1700 Boiling point ( C) Vapori zing p ressur e (25 C) Satura ted va por de nsity Flamm ability Ozone -destr oying point ( ODP) Globa l-warm ing po int (GWP) b. Comp osi tional change (pseudo-azeotropic charact eristics) R41 0A is a pseu do-azeo trop ic m ixture comprising the two com ponents R32 and R1 25. Mult i-compo nen t refr iger ants with the se c hem ical cha racterist ics e xhibit lit tle c omp ositi ona l change even fro m phase cha nge s due to v apo riza tion 9or cond ens ation), w hich mea ns t hat there is l ittle chan ge in the cir cula ting refri gera nt com pos ition eve n w hen the refrigera nt le aks from the gaseous sec tion of th e piping . Acc ordi ngly, R4 10A can be handled i n almost the sam e manne r as the sing le-c omp one nt re frigeran t R2 2. How eve r, w hen charging, be cau se there is a slight change in c omp osit ion betw een the gas pha se a nd th e liquid pha se i nsid e a c ylin der or ot her containe r, ch argi ng s houl d basically begin with the liqu id si de. c. Press ure characterist ics As seen in Table 2, t he gas pressure of R410A is a pproxim atel y 1.6 tim es a s high as tha t of R22 at the same refr iger ant t emp erat ure, whi ch m ean s that special R410A tool s and ma teri als w ith h igh-pressur e sp ecifi cati ons mu st be use d fo r all refri gera nt p iping wo rk and servicing. Table 2 Comparison of R410A and R22 saturated vapor density Refrigerant Temperature( C ) R410A R22 -20 0.30 0.14 0 0.70 0.40 20 1.35 0.81 40 2.30 1.42 60 3.73 2.33 65 4.15 2.60 39 U U U U d. R410A refrigerating machine oil Conventionally, mineral oil or a syntheti c oil suc h as alkylbenzen e has been used for R22 refrigerating ma chin e oil . Becaus e of the poo r compatibili ty betwe en R410 A and conve ntional oils l ike mineral oil, however, ther e is a tenden cy f or the refrigerat ing machine oil to collect in the refri gera ting cycle. For t his reas on, poly este r an d other synth etic oils which have a hig h co mpa tibil ity w ith R410 A are us ed as re frigerating m ach ine oil. Because of the hig h hygro scop ic p roperty of synthetic oil, more ca re must be t aken in its handling tha n was necess ary with conventional refrig erat ing mac hine oils . Al so, t hese sy nthe tic oils will degrade if mixed wi th mi neral oil or alkyl ben zene , ca usin g cl oggi ng i n capillary t ubes or com pres sor mal func tion . Do not mix the m under any circu mst ances. 10.1.2 Safety Measure When Installing / Receiving Refrigerant Piping Cause the gas pressure of R4 10A is a pproxim ately 1.6 tim es as hi gh as that o f R22, a mistake in installat ion or servici ng could result in a maj or accident. It is es sent ial t hat you use R410a tool s an d materials, and that you observe the fol lowi ng preca utions to ensure safety. 1. Do not u se any refrigerant other than R410A in Acs that have been used with R410A . 2. If any refrigerant gas leaks while you are working, ventilate the room. Toxic gas may be generated if r efrigerant gas is exposed to a direct flame. 3. When instal ling or transferring an AC, do not allow any air or sub stance other than R410A to mix into the refri geration cycle. I f it doe s, the p ressure in the r efrigeration cycle can become abnormally high, possibly causing an explosion and/or injury. 4. Afte r finishing the installation, check t o make sure there is no refrigerant gas leaking. 5. When install ing or transf erring an AC, follow the instruct ions in the i nsta llation instructions caref ully. Incorrect installation can resul t in an abnormal refri geration cycl e or wat er leakage, elect ric s hock, fire, et c. 6. Do not perform any alterations on the AC unit under any ci rcumstances. Have all repair work done by a specialist. Incorrect repairs can result in an water leakage, el ectric shock, fire, etc. 10.2. TOOL FOR INSTALLING / SERVICING REFRIGERANT PIPING 10.2.1 Necessary Tools In ord er to pre ven t an R41 0A A C from mistaken ly being charged with any other re frige ran t, the dia met er of the 3-w ay v alve serv ice port on t he o utdo or u nit h as b een cha nged . Als o, t o inc reas e its abi lity t o wi thsta nd p res sure , the o ppo sing dim ensi ons have been changed f or the refrigerant pipe flaring size and flare nu t. Ac cord ingl y, wh en in stal ling or s ervic ing refri gera nt p iping, yo u must have both the R41 0A a nd o rdin ary tool s list ed b elow. Table 3 Tools for installation, transferring or replacement Type of work Flaring Bending, connecting pipes Ordinary tools R410A tools Fl aring t ool (cl utch ty pe), p ipe cut ter, re amer To rque wrenc h (no minal diam eter 1/4, 3/ 8,1/2) Fixed spann er (op posin g side s 12 m m, 17 mm, 19 mm ) Adj ustabl e wre nch, Sp ring b ender Air purging Va cuum pump Hexag onal wrench (o pposin g side s 4 mm ) Gas leak inspection Ga s leak inspec tion fl uid or soapy water Cop per pip e gau ge for cleara nce Adju stmen t, flari ng too l (clutc h type )*1) Mani fold ga uge, c hargin g hos e, vac uum pump adap tor Electric gas leak detector for HFC refrigera nt*2) *1 ) Yo u ca n use th e co nventional (R 22) flaring t ool. If you ne ed t o buy a n ew t ool, buy the R41 0A type. *2 ) Us e w hen it is necessa ry to det ect smal l gas lea ks. *F or o the r ins talla tion wor k, yo u sh ould have th e usual t ools, su ch as screwdrivers (+ ,-), a me tal-c uttin g sa w, a n e lectr ical drill , a h ole c ore drill (65 or 70 dia .), a tape measu re, a leve l, a thermom eter, a c lam p me ter, an in sula tion te ster, a v oltm eter, etc . Table 4 Tool for serving Type of work Ordinary tools Refrigerant charging Brazing (Replacing refrigerating cycle part*1) R410A tools Elec tronic scale for refrigerant char ging Refr igeran t cylin der Charging orific e and packing fo r refrig erant cylinder Nitr ogen blow s et (be sure to use n itroge n blo wing fo r all b razing ), and brazin g), an d bra zing m achin e *1 ) Al way s rep lace the dry er of the outdoor unit at the same time. The rep lace me nt dr yer i s wr app ed in a vacuum p ack. Rep lace it la st a mon g th e ref rige rating cycle parts. St art brazin g as soo n as you have opene d th e va cuu m pa ck, a nd b egin the vac uum ing 40 U 10.2.2. U U U R410A Tools 1. Cooper tube gauge for clearance adjustment (used when flaring with the conventional flaring tool (clutch type)) This gauge makes it easy to set the clearance for the copper tube to 1.0-1.5 mm from the clamp bar of the flaring tool. Fig. 1 Copper tube gauge for clearance adjustment 2. Flaring tool (clutch type) In the R410A flaring tool, the receiving hole for the clamp bar is enlarged so the clearance from the clamp bar can be set to 0-0.5 mm, and the spring inside the tool is strengthened to increase the strength of the pipeexpanding torque. This flaring tools can also be used with R22 piping, so we recommend that you select it if you are buying a new flaring tool. Fig. 2 Flaring tool (clutch type) 3. Torque wrenches Fig. 3 Torque wrenches For 1/4 (opposite side x torque) For 3/8 (opposite side x torque) For 1/2 (opposite side x torque) Table 5 Conventional wrenches 17 mm x 18 N.m (180 kgf.cm) 22 mm x 42 N.m (420 kgf.cm) 24 mm x 55 N.m (550 kgf.cm) R410A wrenches 17 mm x 18 N.m (180 kgf.cm) 22 mm x 42 N.m (420 kgf.cm) 26 mm x 55 N.m (550 kgf.cm) 4. Manifold gauge Because the pressure is higher for the R410A type, the conventional type cannot be used. Table 6 Difference between R410A and conventional high / low-pressure gauges Conventional Gauges R410A Gauges High-pressure gauge (red) -76 cmHg - 35 kgf/cm3 -0.1 - 5.3 Mpa -76 cmHg - 53 kgf/cm 3 High-pressure gauge (blue) -76 cmHg - 17 kgf/cm3 -0.1 - 3.8 Mpa -76 cmHg - 38 kgf/cm 3 The shape of the manifold ports has been changed to prevent the possibility of mistakenly charging with another type of refrigerant. Port size Table 7 Difference between R410A and conventional manifold port size Conventional gauges R410A gauges 7/6 UNF 20 threads 1/2 UNF 20 threads - 41 - U U U U 5. Charging hose The pressure resistance of the charging hose has been raised to match the higher pressure of R410A. The hose material has also been changed to suit HFC use, and the size of the fitting has been changed to match the manifold ports. Fig. 4 Manifold gauge charging hose Pressure resistance Material Table 8 Difference between R410A and conventional charging hoses Conventional hoses R410A hoses Working pressure 3.4 MPa (35 kgf/cm3) 5.1 MPa (52 kgf/cm 3) Bursting pressure 17.2 MPa (175 kgf/cm3) 27.4 MPa (280 kgf/cm3) NBR rubber HNBR rubber Nylon coating inside 6. Vacuum pump adaptor When using a vacuum pump for R410A, it is necessary to install an electromagnetic valve to prevent the vacuum pump oil from flowing back into the charging hose. The vacuum pump adaptor is installed for that purpose. if the vacuum pump oil (mineral oil) becomes mixed with R410A, it will damage the unit. Fig. 5 Vacuum pump adaptor 7. Electric gas leak detector for HFC refrigerant The leak detector and halide torch that were used with CFC and HCFC cannot be used with R410A (because there is no chlorine in the refrigerant). The present R134a leak detector can be used, but the detection sensitivity will be lower (setting the sensitivity for R134a at 1, the level for R410A will drop to 0.6). For detecting small amounts of gas leakage, use the electric gas leak detector for HFC refrigerant. (Detection sensitivity with R410A is about 23 g/year). - 42 - Fig. 6 Electric gas leak detector for HFC refrigerant U U U 8. Electronic scale for refrigerant charging Because of the high pressure and fast vaporizing speed of R410A, the refrigerant cannot be held in a liquid phase inside the charging cylinder when charging is done using the charging cylinder method, causing bubbles to form in the measurement scale glass and making it difficult to see the reading. (Naturally, the conventional R22 charging cylinder cannot be used because of the differences in the pressure resistance, scale gradation, connecting port size, etc.) The electronic scale has been strengthened by using a structure in which the weight detector for the refrigerant cylinder is held by four supports. It is also equipped with two connection ports, one for R22 *7/16 UNF, 20 threads) and one for R410A (1/2 UNF, 20 threads), so it can also be used for conventional refrigerant charging. Fig. 7 Electronic scale for refrigerant charging There are two types of electronic scales, one for 10-kg cylinders and one for 20-kg cylinders. (The 10-kg cylinder is recommended.) Refrigerant charging is done manually by opening and closing the valve. 9. Refrigerant cylinders The R410A cylinders are labeled with the refrigerant name, and the coating color of the cylinder protector is pink, which is the color stipulated by ARI of the U.S. Cylinder equipped with a siphon tube are available to allow the cylinder to stand upright for liquid refrigerant charging. Fig. 8 Refrigerant cylinders 10. Charging orifice and packing for refrigerant cylinders The charging orifice must match the size of the charging hose fitting (1/2 UNF, 20 threads). The packing must also be made of an HFC-resistant material. Fig. 9 Charging orifice and packing 10.2.3. R410A Tools Which Are Usable for R22 Models (1) (2) (3) (4) (5) (6) (7) (8) (9) Table 9 R410A tools which are usable for R22 models R410A tools Usable for R22 models Copper tube gauge for clearance adjustment OK Flaring tool (clutch type) OK Manifold gauge NG Charging hose NG Vacuum pump adaptor OK Electric gas leak detector for HFC refrigerant NG Electronic scale for refrigerant charging OK Refrigerant cylinder NG Charging orifice and packing for refrigerant cylinder NG - 43 - U CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 10.3. REFRIGERANT PIPING WORK 10.3.1. Piping Materials It is recommended that you use copper and copper alloy jointless pipes with a maximum oil adherence of 40 mg/10m. Do not used pipes that are crushed, deformed, or discolored (especially the inside surface). If these inferior pipes are used, impurities may clog the expansion valves or capillaries. Because the pressure of ACs using R410A is higher than those using R22, it is essential that you select materials that are appropriate for these standards. The thickness of the copper tubing used for R410A is shown in Table 10. Please be aware that tubing with a thickness of only 0.7 mm is also available on the market, but this should never be used. Nominal diameter 1/4 3/8 1/2 Table 8 Difference between R410A and conventional charging hoses Soft pipe Thickness (mm) Outside diameter (mm) R410A (Reference) R22 6.35 0.80 0.70 9.52 0.80 0.70 12.7 0.80 0.70 10.3.2. Processing and Connecting Piping Materials When working with refrigerant piping, the following points must be carefully observed: no moisture od dust must be allowed to enter the piping, and there must be no refrigerant leaks. 1. Procedure and precautions for flaring work a. Cut the pipe Use a pipe cutter, and cut slowly so the pipe will not be deformed. b. Remove burrs and clean shavings from the cut surface If the shape of the pipe end is poor after removing burrs, or if shavings adhere to the flared area, it may lead to refrigerant leaks. To prevent this, turn the cut surface downward and remove burrs, then clean the surface, carefully. c. Insert the flare nut (be sure to used the same nut that is used on the AC unit) Fig. 10 Flaring dimensions d. Flaring Check the clamp bar and the cleanliness of the copper pipe. Be sure to sued the clamp bar to do the flaring with accuracy. Use either an R410A flaring tool, or a conventional flaring tool. flaring tools come in different sizes, so be sure to check the size before using. When using a conventional flaring tool, use the copper pipe gauge for clearance adjustment, etc., to ensure the correct A dimension (see Fig. 10) The R410A flare nut for the ACs can be distinguished by their shape because they do not have this part. When flaring, be sure to use the same nut that is used on the AC unit. Fig. 11 Relation between the flare nut structure and flaring tool end - 44 - U Nominal diameter (in) Outside diameter (mm) 1/4 3/8 1/2 6.35 9.52 12.70 Nominal diameter (in) Outside diameter (mm) 1/4 3/8 1/2 6.35 9.52 12.70 U U Table 11 R410A flaring dimensions Wall thickness (mm) R410A flaring tool, clutch type Clutch type 0.8 0 - 0.5 1.0 0.8 0 - 0.5 1.0 0.8 0 - 0.5 1.0 A (mm) Conventional flaring tool Wing-nut type - 1.5 1.5 - 2.0 - 1.5 1.5 - 2.0 - 1.5 2.0 - 2.5 Table 12 R410A flaring dimensions Wall thickness (mm) R410A flaring tool, clutch type Clutch type 0.8 0 - 0.5 0.5 0.8 0 - 0.5 0.5 0.8 0 - 0.5 0.5 A (mm) Conventional flaring tool Wing-nut type - 1.0 1.0 - 1.5 - 1.0 1.0 - 1.5 - 1.0 1.5 - 2.0 Nominal diameter (in) 1/4 3/8 1/2 Table 13 R410A flaring and flare nut dimensions Unit: mm Outside Wall thickness A +0, -0.4 B C diameter (mm) (mm) dimension dimension 6.35 0.8 9.1 9.2 6.5 9.52 0.8 13.2 13.5 9.7 12.70 0.8 16.6 16.0 12.9 D dimension 13 20 23 Flare nut width 17 22 26 Nominal diameter (in) 1/4 3/8 1/2 Table 14 R410A flaring and flare nut dimensions Unit: mm Outside Wall thickness A +0, -0.4 B C diameter (mm) (mm) dimension dimension 6.35 0.8 9.0 9.2 6.5 9.52 0.8 13.0 13.5 9.7 12.70 0.8 16.2 16.0 12.9 D dimension 13 20 20 Flare nut width 17 22 24 U 2. Procedure and precautions for flare connection a. Check to make sure there are no scratches, dust, etc., on the flare and union. b. Align the flared surface with the axial center of the union. c. Use a torque wrench, and tighten to the specified torque. The tightening torque for R410A is the same as the conventional torque value for R22. Be careful, because if the torque is too weak, it may lead to a gas leak. If it is too strong, it may split the flare nut or make it impossible to remove the flare nut. Nominal diameter (in) 1/4 3/8 1/2 10.3.3. Table 15 R410A tightening torque Outside Tightening torque diameter (mm) N.m (kgf.cm) 6.35 14 - 18 (140 - 180) 9.52 33 - 42 (330 -420) 12.70 55 (550) Torque wrench tightening torque N.m (kgf.cm) 18 (180) 42 (420) 55 (550) Storing and managing Piping Materials 1. Types of piping and their storage The following is a general classification of the refrigerant pipe materials used for ACs. Common names Refrigerant pipe materials Pipes with heat inusulating covers Unflared : Sheathed copper pipes Pipes without heat insulating cover (copper ioes) Unflared : copper pipes Because the gas pressure of R410A is approximately 1.6 times as high as that of R22, copper pipes with the thickness shown in Table 10, and with minimal impurities must be used. Care must also be taken during storage to ensure that pipes are not crushed, deformed, or scratched, and that no dust, moisture or other substance enters the pipe interior. When storing sheathed copper pipes or plain copper pipes, seal the openings by pinching or taping them securely. 2. Makings and management a. Sheathed copper pipes and copper-element pipes When using these pipes, check to make sure that they are the stipulated thickness. For flare nuts, be sure to used the same nut that is used on the AC unit. - 45 - U U U U b. Copper pipes Use only copper pipes with the thickness given in table 10, and with minimal impurities. Because the surface of the pipe is exposed, you should take special care, and also take measures such as marking the pipes to make sure they are easily distinguished from other piping materials, to prevent mistaken use. 3. Precautions during refrigerant piping work Take the following precautions on-site when connecting pipes. (Keep in mind that the need to control the entry of moisture and dust is even more important that in conventional piping). a. Keep the open ends of all pipes sealed until connection with AC equipment is complete. b. Take special care when doing piping work on rainy days. The entering of moisture will degrade the refrigerating machine oil, and lead to malfunctions in the equipment. c. Complete all pipe connections in as short a time as possible. If the pipe must be left standing for a long time after removing the seal, it must be thoroughly purged with nitrogen, or dried with a vacuum pump. 10.4. INSTALLATION, TRANSFERRING, SERVICING 10.4.1. Inspecting Gas Leaks with a Vacuum Pump for New Installations (Using New Refrigerant Piping) 1. From the viewpoint of protecting the global environment, please do not release refrigerant into the atmosphere. a. Connect the projecting side (pin-pushing side) of the charging hose for the manifold gauge to the service port of the 3-way valve. (1) b. Fully open the handle Lo of the manifold gauge and run the vacuum pump. (2) (If the needle of the low-pressure gauge instantly reaches vacuum, re-check step a).) c. Continue the vacuum process for at least 15 minutes, then check to make sure the low-pressure gauge has reached -0.1 MPa (-76 cmHg). Once the vacuum process has finished, fully close the handle Lo of the manifold gauge and stop the vacuum pump operation, then remove the charging hose that is connected to the vacuum pump adaptor. (Leave the unit in that condition for 1-2 minutes, and make sure that the needle of the manifold gauge does not return.) (2) and (3) d. Turn the valve stem of the 2-way valve 90 counter-clockwise to open it, then, after 10 seconds, close it and inspect for a gas leak (4) e. Remove the charging hose from the 3-way valve service port, then open both the 2-way valve and 3-way valve. (1) (4) (Turn the valve stem in the counter-clockwise direction until it gently makes contact. Do not turn it forcefully). f. Tighten the service port cap with a torque wrench (18 N.m (1.8 kgf.m)). (5) Then tighten the 2-way valve and 3-way valve caps with a torque wrench (42 N.m (4.2 kgf.m)) or (55 N.m (5.5 kgf.m)). g. After attaching each of the caps, inspect for a gas leak around the cap area. (5) (6) Precautions Be sure to read the instructions for the vacuum pump, vacuum pump adaptor and manifold gauge prior to use, and follow the instructions carefully. Make sure that the vacuum pump is filled with oil up to the designated line on the oil gauge. The gas pressure back flow prevention valve on the charging hose is generally open during use. When you are removing the charging hose from the service port, it will come off more easily if you close this valve. Fig. 12 Vacuum pump air purging configuration - 46 - U 10.4.2. U U U Transferring (Using New Refrigerant Piping) 1. Removing the unit a. Collecting the refrigerant into the outdoor unit by pumping down The refrigerant can be collected into the outdoor unit (pumping down) by pressing the TEST RUN button, even when the temperature of the room is low. Check to make sure that the valve stems of the 2-way valve and 3-way valve have been opened by turning them counterclockwise. (Remove the valve stem caps and check to see that the valve stems are fully opened position. Always use a hex wrench (with 4-mm opposing sides) to operate the valve stems.) Press the TEST RUN button on the indoor unit, and allow preliminary for 5-6 minutes. (TEST RUN mode) After stopping the operation, let the unit sit for about 3 minutes, then close the 2-way valve by turning the valve stem in the clockwise direction. Press the TEST RUN button on the indoor unit again, and after 2-3 minutes of operation, turn the valve stem of the 3way valve quickly in the clockwise direction to close it, then stop the operation. Tighten the caps of the 2-way valve and 3-way valve to the stipulated torque. Remove the connection pipes (liquid side and gas side). 2. Installing the unit Install the unit using new refrigerant piping. Follow the instructions in section 4.1 to evacuate the pipes connecting the indoor and outdoor units, and the pipes of the indoor unit, and check for gas leaks. 10.4.3. AC Units Replacement (Using Existing Refrigerant Piping) When replacing and R410A AC unit with another R410A AC unit, you should re-flare the refrigerant piping. Even though the replacement AC unit uses the R410A, problems occur when, for example, either the AC unit maker or the refrigerating machine oil is different. When replacing an R22 AC unit with an R410A AC unit, the following checks and cleaning procedures are necessary but are difficult to do because of the chemical characteristics of the refrigerating machine oil (as described in items c) and d) of section 10.1.1.(2)). In this case, you should use new refrigerant piping rather than the existing piping. 1. Piping check Because of the different pressure characteristics of R22 and R410A, the design pressure for the equipment is 1.6 times different. the wall thickness of the piping must comply with that shown in Table 10, but this is not easy to check. Also, even if the thickness is correct, there may be flattened or bent portions midway through the piping due to sharp curves. Buried sections of the piping also cannot be checked. 2. Pipe cleaning A large quantity of refrigerating machine oil (mineral oil) adheres to existing pipes due to the refrigeration cycle circulation. If the pipes are used just as they are for the R410A cycle, the capacity will be lowered due to the incompatibility of this oil with the R410A, or irregularities may occur in the refrigeration cycle. For this reason, the piping must be thoroughly cleaned, but this is difficult with the present technology. 10.4.4. Refrigerant Compatibility (Using R410A Refrigerant in R22 ACs and Vice Versa) Do not operate an existing R22 AC with the new R410A refrigerant. Doing so would result in improper functioning of the equipment or malfunction, and might lead to a major accident such as an explosion in the refrigeration cycle. Similarly, do not operate an R410A AC with R22 refrigerant. The chemical reaction between the refrigerating machine oil used in R410A ACs and the chlorine that is contained in R22 would cause the refrigerating machine oil to degrade and lead to malfunction. 10.4.5. Recharging Refrigerant During Servicing When recharging is necessary, insert the specified amount of new refrigerant in accordance with the following procedure. 1. Connect the charging hose to the service port of the outdoor unit. 2. Connect the charging hose to the vacuum pump adaptor. At this time, fully open the 2-way valve and 3-way valve. 3. Fully open the handle Lo of the manifold gauge, turn on the power of the vacuum pump and continue the vacuum process for at least one hour. 4. Confirm that the low pressure gauge shows a reading of -0.1 Mpa (-76 cmHg), then fully close the handle Lo, and turn off the vacuum pump. Wait for 1-2 minutes, then check to make sure that the needle of the Low pressure gauge has not returned. See Fig. 13 for the remaining steps of this procedure. - 47 - U U U U 5. Set the refrigerant cylinder onto the electronic scale, then correct the hose the cylinder and to the connection port for the electronic scale. (1)(2) Precaution: Be sure to set up the cylinder for liquid charging. If you use a cylinder equipped with a siphon tube, you can charge the liquid without having to turn the cylinder around 6. Remove the charging hose of the manifold gauge from the vacuum pump adaptor, and connect it to the connection port of the electronic scale. (2)(3) 7. Open the valve of the refrigerant cylinder, then open the charging valve slightly and close it. Next, press the check valve of the manifold gauge and purge the air. (2)(4) (Watch the liquid refrigerant closely at this point.) 8. After adjusting the electronic scale to zero, open the charging valve, then open the valve Lo of the manifold gauge and charge with the liquid refrigerant. (2)(5) (Be sure to read the operating instructions for the electronic scale.) 9. If you cannot charge the stipulated amount, operate the unit in the cooling mode while charging a little of the liquid at a time (about 150 g/time as a guideline). If the charging amount is insufficient from one operation, wait about one minute, then use the same procedure to do the liquid charging again. Precaution: Never use the gas side to allow a larger amount of liquid refrigerant to be charged while operating the unit. 10. Close the charging valve, and after charging the liquid refrigerant inside the charging hose, fully close the valve Lo of the manifold gauge, and stop the operation of the unit. (2)(5) 11. Quickly remove the charging hose from the service port. (6) If you stop midway through, the refrigerant that is in the cycle will be discharged. 12. After putting on the caps for the service port and operating valve, inspect around the caps for a gas leak. (6)(7) Fig. 13 Re-charging refrigerant 10.4.6. Brazing As brazing requires sophisticated techniques and experiences, it must be performed by a qualified person. In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to proceed with brazing while letting dry nitrogen gas (N2) flow. - 48 - U U U U <Brazi ng Method for Preven ting Oxidat ion> 1. Attach a reducing valve to the nitrogen gas cylinder. 2. Attach a reducing valve to the nitrogen gas cylinder. 3. Apply a seal onto the clearance between the piping and inserted pipe for the nitrogen gas in order to prevent the nitrogen gas from flowing backward. 4. When the nitrogen gas is flowing, be sure to keep the piping end open. 5. Adjust the flow rate of nitrogen gas so that it is lower than 0.05 m3/h, or 0.02 MPa (0.2 kgf/cm2) by means of the reducing valve. 6. After taking the steps above, keep the nitrogen gas flowing until the piping cools down to a certain extent (i.e. temperature at which pipes are touchable with finger). 7. Completely remove the flux after brazing. Cautions during brazing 1. General Cautions a. The brazing strength should be high as required. b. After operation, airtightness should be kept under pressurized condition. c. During brazing do not allow component materials to become damaged due to overheating. d. The refrigerant pipe work should not become blocked with scale or flux. e. The brazed part should not restrict the flow in the refrigerant circuit. f. No corrosion should occur from the brazed part. 2. Preventing of Overheating Due to heating, the interior and exterior surfaces of treated metal may oxidize. Especially, when the interior of the refrigerant circuit oxidizes due to overheating, scale occurs and stays in the circuit as dust, thus exerting a fatally adverse effect. So, make brazing at adequate brazing temperature and with minimum of heating area. 3. Overheating Protection In order to prevent components near the brazed part from overheating damaged or quality deterioration due to flame or heat, take adequate steps for protection such as (1) by shielding with a metal plate, (2) by using a wet cloth, and (3) by means of heat absorbent. 4. Movement during Brazing Eliminate all vibration during brazing to protect brazed joints from cracking and breakage. 5. Oxidation Preventative In order to improve the brazing efficiency, various types of antioxidant are available on the market. However, the constituents of these are widely varied, and some are anticipated to corrode the piping materials, or adversely affect HFC refrigerant, lubricating oil, etc. Exercise care when using an oxidation preventive. 10.4.7. Servicing Tips The drier must also be replaced whenever replacing the refrigerant cycle parts. Replacing the refrigerant cycle parts first before replacing the drier. The drier is supplied in a vacuum pack. Perform brazing immediately after opening the vacuum pack, and then start the vacuum within two hours. In addition, the drier also needs to be replaced when the refrigerant has leaked completely. - 49 - CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 11 Disassembly of the parts Removal Procedure For Intake Grille 1. Open t he intake gri lle and pull it to the horizontal po sition. (Fig. 1) Opener Opener Fig. 1 2. Pull up the intake grille until it falls off.(F ig. 2) Fig. 2 R emoval Procedure For Front Gril le 1.Re move the two cap s at the discharg e port (right and left) (F ig. 3) Cap Fig. 3 2.Re lease the two screws under th e bo th caps. (Fig. 4) Fixing Screw Fig . 4 3.Pull out the front gri lle from the u nit b ody. (Fi g.5 ) Fron t Grille Fig. 5 50 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Removal Procedure Fo r El ectronic Controller 1 Remove indicador complete After removing the front grille, loose the screw behi nd the indicator, the whole indicator can be released. Fig 6 2 Remove the cove r of control b oard and hol der. 3 B reak off the e aring ,release th e ho lder slightly. Indicator Complete Be sure to avo id cracki ng of th e holder. Fig 7 4. Release the lea d w ire CN-FM, C N-VF, CN-S TM, CN -DISP and ea rth wire(Yellow/Green). Take out the sens or from the s ocket. Pull out the who le elect roni c control ler. Fig 8 5. Remove the whole cont rol board Lo ose the scre w s of control boa rd,earings slightly, then the whole co ntro l board can be pulled out. Fig 9 Remo val Procedure For the D isch arge Grille 1. Separa te t he drain hose and the drain plate(Fig. 10) Fig 10 2. Pull out the discharge grille slightly (Fig. 11) Fig. 11 51 Holder Earing CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE fixing board Removal Procedure For Cross Flow Fan 1. Release the two fixing screws,disassembly the f ixing board f rom ev aporator on the l eft side of the evaporator and pul l out the whole evaporator. (F ig. 12) Screw F ig. 12 2.Loose the fixing screw of the cross flow fan. (Fig. 13) Fixi ng Screw F ig. 13 3.Af ter removing the bearing (refer to fig14) , indoor fan can be ta ken out from the left side. Bearing Fig 14 4. Lift up the indoor fan sl ightl y, an d then pull t he fan motor out.(Fig.15) Fan motor Fig 15 Remote control reset Resetting terminals If the display is chaotic or can not be adjusted, Remove the back lid of the remote control and you will find the resetting terminals and shorten the two terminals using a screw driver to reset. Fig 16 52 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 12 Troubleshooting Guide 12.1. Refrigeration cycle system Normal pressure and outlet air temperature(standard) 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 compressor or fan. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table to the right. Gas side pressure Outlet air Mpa temperature 2 (kg/cm G) Cooling mode 0.6~0.96(6~9.6) Heating mode 2.25~3.36(22.5~33.6) ( ) 12~16 36~45 Condition: indoor fan speed: high outdoor temperature: 35 (Cooling mode) 7 (Heating mode) Difference in the intake and outlet air temperature More tha n 14 (15 minutes after an operation i s started) at the heating mode Measuring the air tem perature difference Normal More than 8 (15 minutes after an operation is started) at the cooling mode Less than 8 Less than 14 Value of electric curre nt during operation at the cooling mode. at the heating mode. Higher than specified Dus ty heat exchanger preventing heat radiation E xcessive amount of refri gerant Measuring electric current during operation Lower than specified Gas side pressure Cooling High mode Inefficient compressor Low Insufficient refrigerant Low clogged strainer or capillary tube Low Inefficient compressor Heating mode Low Low Insufficient refrigerant clogged strainer or capillary tube 53 Measuring gas side pressure CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 12.2. Relationship between the condition of air conditioner and pressrue and electric current Cooling mode Condition of the air conditioner Low pressure High pressure Heating mode Electric current during operation Low pressure High pressure Electric current duri ng operati on Insufficient refrigerant (gas leakage) Clogged capillary tube Short circuit in the indoor uni t Heat radiation deficiency of the outdoor unit Insufficient compression 12.3. Diagnosis methods of a malfunction of a compressor . Nature of fault I nsufficient compressing of a compressor Symptom El ectric current during operation becomes approximately 80% lower than the normal level. The discharge tube of the compressor becomes abnormally hot (normally 70~90 ). The difference between high pressure and low pressure becomes al most zero. Locked compressor El ectric current reaches a high level abnormally, and the value exceeds the limit of an ammeter. In some cases, a breaker turns off. The compressor has a humming sound. Inefficient switches of the 4-w ay valves Elect ric current during operation becomes approxim ately 20% lower tha n the normal valve. The t emperat ure diffe rence betwe en from t he discharge tube to the 4-way valve and from suction tub e to the 4-way valve becomes almost zero. 54 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 13 Technical Data Thermostat charac teristics ( Cooling mode Soft dry mode ) 34 ( ) 34 32 32 30 30 28 Compressor on Compressor off= Set temperature 28 26 1.5 26 in difference 24 24 22 22 20 20 18 18 16 16 18 20 22 24 26 28 30 ( ) 16 Cooling on Cooling off = set temperature Soft Dry off Soft Dry on 1.5 in difference 1.0 in difference 16 18 Temperature setting ( ) 34 32 Compressor off= Set temperatur e 30 Compressor on 28 2.0 26 24 22 20 18 16 18 20 22 24 22 24 26 28 Temperature setting Heating mode 16 20 26 28 30 ( ) Temperature setting 55 in diffe rence 30 ( ) CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Operation characteristics CS/CU-UW9GKE Cooling c haracteristics Pipin g Length Characteristics 23 0V 230V 17 16 15 14 13 O 16 O 14 2.8 3.0 2.8 2.6 2.4 2.2 Q 2.6 Q 2.4 2.2 LP 1.05 1.00 0.95 0.90 0.85 1.00 0.95 0.90 0.85 LP 6.0 5.0 4.0 3.0 15 5.0 I 4.0 I 3.0 30 32 34 36 38 40 42 44 3 Outdo or temp ( ) [Condition] Room temp: 27/19 C ooling ope ratio n:at high spe ed Piping length:7.5m Heat ing characteristics 230V 39 38 O 37 36 3.2 3.0 Q 2.8 2.6 3.0 2.8 LP 2.6 5.0 4.0 I 3.0 2.0 -4 -2 0 2 4 6 8 4 5 6 7 8 9 10 PIPING LENGTH(m) [Condition] Room temp: 27/19 Cooling operation:at high speed 10 Outdoor temp( ) [Condition] Room temp: 20 Heating operation:at high speed Piping length:7.5m 56 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE Operation characteristics CS/CU-UW12GKE Cooling cha racteristics Piping Length Characteristics 230V 17 16 15 14 13 3.8 3.6 3.4 3.2 3.0 2.8 0.70 0.65 0.60 0.55 0.50 7.0 6.0 5.0 4.0 30 32 34 36 38 40 42 44 Outdo or temp ( ) [Condition] Room tem p: 27/19 Cooling operatio n:at high speed Piping length:7.5m Heat ing characteristics 230V 39 38 O 37 36 4. 0 Q 3. 8 3. 6 3. 4 3.0 2.8 LP 5.0 2.6 I 4.0 3.0 2.0 -4 -2 0 2 4 6 8 10 Outdoor temp( ) [Condition] Room temp: 20 Heating operation:at high speed Piping length:7.5m 57 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 14 Exploded View CS-UW9GKE II 35 38 34 II 1 36 OI 37 II 3 OI 33 25 12 2 4 13 15 14 6 17 16 8 10 24 18 23 11 27 30 7 31 19 21 20 22 30 31 26 29 32 58 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 15 Replacement Parts List CS-UW9GKE NO PART NAME&DESCRIPTION Q'TY 1 CHASSIS COMPLETE 1 2 FAN MOTOR 1 CS-UW9GKE CWD50C1532 CWA921372 3 CROSS FLOW FAN COMPLETE 1 4 EVAPORATOR 1 CWH02C1051 CWB30C2146 6 DISCHARGE GRILLE COMPLETE 1 CWE20C2708 7 AIR SWING MOTOR 1 CWA981184 8 DAIN ELBOW 1 CWH52160C 9 HORIZONTAL VANE 2 CWE24C1184 11 VERTICAL VAN E 1 CWE241141 12 C-BOX 1 CWH14C5654 13 CONTROL BOARD CASING 1 CWH102261 14 POWER SUPPLY CORD COMPLETE 1 CWA20C2602 16 MAIN PCB 1 CWA73C2593 17 RECEIVER 1 19 INDICATOR COMPLETE 1 CWA743353 CWE39C1134 20 INDICATOR HOLDER-FRONT 1 CWD932447 21 INDICATOR PCB 1 CWA743929 22 CONN ECTING LEAD-INDICATOR 1 CWA67C5252 23 SENSOR COMPLETE 1 CWA50C2275 24 CONTROL BOARD FRONT COVER 1 CWH131189 25 CONTROL BOARD TOP COVER 1 CWH131256 26 REMOTE CONTROL 1 CWA75C2863 27 FRONT GRILLE COMPLETE 1 CWE11C3874 29 AIR FILTER 2 30 SCREW-FRONT GR ILLE 2 CWD001110 XTT4+12CFJ 31 CAP-FRONT GRILLE 2 32 DRAIN HOSE 1 33 OPERATING INSTRUTIONS 1 34 OPERATING INSTRUTIONS 1 35 INSTALLATION INSTRUCTION 1 36 INSTALLATION INSTRUCTION 1 CWF613239 CWF613240 37 INSTALLATION INSTRUCTION 1 CWF613241 38 INSTALLATION PLATE 1 CWH36K1025J Note: 1.A ll parts are s upplie d from PHAA G, P.R . Chin a. 2."*" mark ed pa rts are recom mend ed to b e kep t in sto ck. 59 CWH521096 CWH851095 CWF565682 CWF565683 RE * * * * * CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 16 Exploded View 30 33 32 34 35 11 31 28 17 26 12 4 20 6 27 19 2 5 14 18 29 3 8 7 10 13 9 24 16 21 23 25 15 22 1 60 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 17 Replacement Parts List No. PART NAME & DESCRIPTION Q'TY CU-UW9GKE 1 CHASSIS ASS'Y 1 CWD52K1166A 2 FAN MOTOR BRACKET 1 CWD541096 3 SCREW-FAN MOTOR BRACKET 2 XTT4+10DFJ 4 FAN MOTOR 1 CWA951427 5 SCREW-FAN MOTOR MOUNT 3 CWH55406J 6 PROPELLER FAN ASS'Y 1 CWH03K1025 7 NUT-PROPELLER FAN 1 CWH561036J 8 COMPRESSOR 1 CWB092400 9 ANTI-VIBRATION BUSHING 3 CWH501022 10 NUT-COMPRESSOR MOUNT 3 CWH561047A 11 CONDENSER 1 CWB32C2022 12 TUBE ASSY(3 WAY VALVE) 1 CWT01C4146 13 HOLDER COUPLING ASS'Y 1 CWH351064A 14 4-WAY VALVE 1 CWB001024J 15 2-WAY VALVE 1 CWB021251 16 3-WAY VALVE 1 CWB011308 17 STRAINER 1 CWB11094 18 OLP 1 CWA121220 19 TERMINAL COVER 1 CWH17006 20 NUT FOR TERMIANL COVER 1 CW7080300J 21 SOUND PROOF BOARD 1 CWH151080J 22 TERMINAL BOARD ASS'Y 1 CWA28K1104 23 CAPACITOR-COMPRESSOR 1 DS371306CPXC 24 HOLDER-CAPACITOR 1 CWH301037 25 CAPACITOR-FAN MOTOR 1 F0DAH2050001 26 TUBE ASS'Y(CAPILLARY) 1 CWT01C4146 27 CAPILLARY 1 CWB15513 28 SENSOR 1 CWA50C2393 29 V-COIL COMPLETE 1 CWA43C2208J 30 TOP PLATE 1 CWE031044A 31 CABINET FRONT PLATE 1 CWE06K1049 32 CABINET SIDE PLATE ( R ) 1 CWE041125A 33 CABINET SIDE PLATE (L) 1 CWE041124A 34 CONTROL BOARD COVER 1 CWH131223 35 CONNECT WIRE-SENSOR 1 CWA22C1022 N ote: 1. All par ts are suppli ed from PHA AG, P. R. Chi na. 2. "*" ma rked p arts ar e reco mmen ded to be ke pt in st ock. 61 RE * * * * * CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 18 Exploded View CS-UW12GKE 35 32 II 31 1 II 33 II 34 OI OI 3 12 30 23 2 4 13 15 6 14 16 8 22 10 21 11 25 30 7 31 18 26 19 17 20 27 28 24 26 29 62 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 19 Replacement Parts List CS-UW12GKE NO PART NAME&DESCRIPTION Q'TY CS-UW12GKE 1 CHASSIS COMPLETE 1 CWD50C1544 2 FAN MOTOR 1 CWA921378 3 CROSS FLOW FAN COMPLETE 1 CWH02C1054 4 EVAPORATOR 1 CWB30C2188 6 DISCHARGE GRILLE COMPLETE 1 CWE20C2723 7 AIR SWING MOTOR 1 CWA981091 8 DAIN ELBOW 1 CWH52160C 9 HORIZONTAL VANE(RIGHT) 1 CWE24C1189 10 HORIZONTAL VANE(LEFT) 1 CWE24C1190 11 VERTICAL VANE 1 CWE24C1191 12 C-BOX 1 CWH14C5649 13 CONTROL BOAR D 1 CWH102337 14 MAIN PCB 1 CWA73C2588 15 PARTICULAR PIECE 1 CWD932689 16 POWER SU PPLY COR D COMPLETE 1 CWA20C2602 17 IN DICATOR HOLDER-FRONT 1 CWD932721 18 IN DICATOR HOLDER-BACK 1 CWD932722 19 IN DICATOR PCB 1 CWA744693 21 SENSOR COMPLETE 1 CWA50C2271J 22 CONTROL BOAR D FRONT COVER 1 CWH131235J 23 CONTROL BOAR D TOP COVER 1 CWH131237 24 REMOTE CONTROL 1 CWA75C2863 25 FRONT GRILLE COMPLETE 1 CWE11C3876 26 AIR FILTER 2 CWD001168 27 SCREW-FR ONT GRILLE 2 XTT4+16CFJ 28 CAP-FRONT GRILLE 2 CWH521121 29 DRAIN HOSE 1 CWH851095 30 OPERATING INSTRUTIONS 1 CWF565682 31 OPERATING INSTRUTIONS 1 CWF565683 32 IN STALLATION INSTRUCTION 1 CWF613239 33 IN STALLATION INSTRUCTION 1 CWF613240 34 IN STALLATION INSTRUCTION 1 CWF613241 35 IN STALLATION PLATE 1 CWH361086 N ote: 1.A ll par ts are s upplie d from PHA AG, P. R. Chi na. 2." *" mar ked pa rts ar e reco mmen ded to be kep t in st ock. 63 RE * * * * * CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 20 Exploded View CU-UW12GKE 32 25 35 27 34 26 24 36 33 37 11 30 4 6 18 2 29 5 3 28 7 31 21 13 20 14 8 18 10 16 9 17 15 22 1 64 CS-UW9GKE / CU-UW9GKE / CS-UW12GKE / CU-UW12GKE 21 Replacement Parts List CU-UW12GKE No. PART NAME & DESCRIPTION Q'TY CU-UW12GKE 1 CHASSIS ASS'Y 1 CWD52K1154A 2 FAN MOTOR BRACKET 1 CWD541093 3 SCREW-FAN MOTOR BRACKET 2 CWH551148A 4 FAN MOTOR 1 CWA951427 5 SCREW-FAN MOTOR MOUNT 4 CWH55406J 6 PROPELLER FAN ASS'Y 1 CWH03K1010 7 NUT-PROPELLER FAN 1 CWH561036J 8 COMPRESSOR 1 CWB092401 9 ANTI-VIBRATION BUSHING 3 CWH50077 10 NUT-COMPRESSOR MOUNT 3 CWH561047A 11 CONDENSER 1 CWB32C1986 13 TUBE ASS'Y(3 WAY VALVE) 1 CWT01C4150 14 4-WAY VALVE 1 CWB001024J 15 3-WAY VALVE 1 CWB011308 16 HOLDER COUPLING ASS'Y 1 CWH351064A 17 2-WAY VALVE 1 CWB021251 18 STRAINER 1 CWB11094 20 TERMINAL COVER 1 CWH17006 21 NUT FOR TERMIANL COVER 1 CW7080300J 22 SOUND PROOF BOARD 1 CWH151139 24 TERMINAL BOARD ASS'Y 1 CWA28K1104 25 CAPACITOR-COMPRESSOR 1 DS371306CPXC 26 HOLDER-CAPACITOR 1 CWH30165J 27 CAPACITOR-FAN MOTOR 1 F0DAH2050001 28 TUBE ASS'Y(CAPILLARY) 1 CWT01C4153 29 CAPILLARY 1 CWB15373 30 SENSOR 1 CWA50C2393 31 V-COIL COMPLETE 1 CWA43C2208J 32 TOP PLATE 1 CWE031075A 33 CABINET FRONT PLATE 1 CWE06C1210 34 CABINET SIDE PLATE ( L) 1 CWE041187A 35 CABINET SIDE PLATE (R) 1 CWE041188A 36 CONTROL BOARD COVER 1 CWH131223 37 CONNECT WIRE-SENSOR 1 CWA22C1022 Note: 1.A ll parts are su pplied from PHAA G, P.R . Chin a. 2."*" mark ed par ts are recom mend ed to b e kept in sto ck. 65 RE * * * * *