Toyo TA-05CW Service Manual

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1. WINDOW TYPE ...............................................................2

■SPECIFICATION ..........................................................................................3

■OPERATION MODES AND FUNCTIONS

■WIRING DIAGRAM

2. WALL-MOUNTED SPLIT TYPE ..........................................3

■SPECIFICATION ..........................................................................................3

■OPERATION MODES AND FUNCTIONS

■WIRING DIAGRAM

3. FLOOR STANDING TYPE ................................................

■SPECIFICATION ..........................................................................................3

■MICRO ELECTRICAL CONTROL SYSTEM

■WIRING DIAGRAM

4. REFRIGERANT FLOW CHART ....................................

■COOLING

■COOLING & HEAT

■MAXIMUM LENGTH OF REFRIGERANT PIPE ...................................................

MICROPROCESSOR CONTROL

■MICRO PROCESSOR CONTROL ..................................................................

■ELECTRIC CONTORL SECTION

1. Main Parts Introduction

1.1 Compressor

① The compressor, which is controlled by contactor, will in turn make it act through relay when

Main chip output is high level.

② Auxiliary start-up function: when the compressor starts up with single phrase, the main chip

CONTENTS

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Table of Contents

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Summary of Contents for Toyo TA-05CW

Page 1: Table Of Contents
CONTENTS 1. WINDOW TYPE ………………………………………………………2 ■SPECIFICATION ………………………………………………………………………………3 ■OPERATION MODES AND FUNCTIONS …………………………………………………4 ■WIRING DIAGRAM …………………………………………………………………………22 2. WALL-MOUNTED SPLIT TYPE ……………………………………3 ■SPECIFICATION ………………………………………………………………………………3 ■OPERATION MODES AND FUNCTIONS …………………………………………………4 ■WIRING DIAGRAM …………………………………………………………………………22 3. FLOOR STANDING TYPE ………………………………………… ■SPECIFICATION ………………………………………………………………………………3 ■MICRO ELECTRICAL CONTROL SYSTEM ………………………………………………4 ■WIRING DIAGRAM …………………………………………………………………………22...
Page 2: Window Type
Output will be in high level. 4 seconds after start-up circuit is engaged, the main chip output Will be in low level and the start-up circuit will shut down. ③ The compressor will remain operation when defrosting ends. 1.2 Indoor Fan The motor is a tapping motor with iron-made outer cover and high, low and fine tuning speed selectioins Driven by three relays separately.
Page 3: Specification
MODEL: TA-05CW; TA-07CW; TA-09CW; TA-11CW; TA-12CW; TA-15CW; TA-16CW; TA-18CW; TA-24CW Features Compact design and elegant appearance. Mechanical control or remote control is optional. Quiet operation, powerful cooling and mild dehumidifying. 2 step fan speed adjustable, auto swing function and all direction airflow distribution.
Page 4 Power supply Ph-V-Hz 220V50Hz 220V50Hz 220V50Hz 220V50Hz 220V50Hz Capacity Btu/h 5000 7000 9000 11000 12000 Input 1250 1350 cooling Rated current Btu/w.h Capacity Btu/h Input Heating Rated current Capacity Btu/h Input Electric heater Rated current Moisture Removal Max. input consumption 1000 1250 1500...
Page 5: Operation Modes And Functions
Rated current 10.2 13.6 Btu/w.h Capacity Btu/h Input Heating Rated current Capacity Btu/h Input Electric heater Rated current Moisture Removal 1.34 1.36 1.42 1.42 Max. input consumption 2530 3170 4260 2880 13.2 Max. input Current 11.8 14.7 19.6 Air flow Noise level (Maximum) dB(A) Net weight...
Page 6 Note: When “Low Cool” is turned to “High Cool”, the speed should be lower and do not switch. : 3 Minutes interval for restarting the operation. Note Note: Only TA-05CW has “Mid fan” and “Mid cool” functions. Part 3. Wiring diagram 1. TA-05CW...
Page 7: Wiring Diagram
Wiring Diagram Operation L(0) Thermostat FanMotor Cool CooL High High CooL Capacitor BN(BK) BU R C BN RD S BU(WH) YE/GN(GN) BN:brown BU:blue Capacitor OR:orange RD:red Compressor WH:white BK:black YE/GN:yellow/green 2. TA-07CW / TA-09CW Operation Blue Blue Brown Step Motor Plug Yellow 1∼...
Page 8 S yn c hro no us M oto r Sw itc h High High Cool Cool P lu g 1∼ S yn c hro no us M oto r O pe ra tio n T he rm ost at Y /G F an Mo t or Y /G B N: br own...
Page 9: Specification
TA-05C(H)S; TA-07C(H)S; TA-09C(H)S; TA-12C(H)S; TA-15C(H)S; TA-16C(H)S; TA-18C(H)S; TA-24C(H)S Features Toyo split type wall-mounted air conditioner have A, B, B1, B2, F1, F2, F3, H, K1, K2, 1B serials. 1. Compact design and elegant appearance. 2. Mechanical control or remote control is optional.
Page 10 Power suply Ph-V-Hz 220V50Hz 220V50Hz 220V50Hz 220V50Hz Capacity Btu/h 7000 9000 12000 16000 Input 1400 1620 cooling Rated current Btu/w.h Capacity Btu/h 7500 9000 13000 16100 Input 1310 1600 Heating Rated current 4.25 Moisture Removall (Hi/Mi/Lo) 0.84 1.22 Max. input consumption 1220 1820 2010...
Page 11: Operation Modes And Functions
Rated current 10.1 12.6 Btu/w.h Capacity Btu/h 19000 25000 Input 2190 2760 Heating Rated current 10.0 12.9 Moisture Removall (Hi/Mi/Lo) 1.77 1.38 Max. input consumption 2700 3510 Max. input current 13.8 18.3 Indoor air flow Indoor noise leve dB(A) Width Indoor Dimension Depth Height...
Page 12 1. Set temperature:18-30℃ ℃ ℃ ℃ 2. Compressor and indoor fan action: Ts = set temperature Ta= room temperature T=Ta -Ts Compressor Indoor fan T≥1℃ High flow middle flow Low flow T≤-1℃ High flow Low flow 3. Indoor fan action 3.1 Fan speed in cooling mode：...
Page 13 6. Swing louver action in Cooling Mode: 6.1 Natural flow Swing louver direction is as following chart: swing two girths —— stop for 1 minute —— swing two girths —— stop for 1 minute off place 6.2 Swing If swing louver swings up and down, swing range is about 55 off place 6.3 When swing louver is under swing mode, press “AIR FLOW”...
Page 14 9. Economic mode in Cooling Mode When it is in economic mode in cooling mode, the set temperature will rise 2℃ automatically. When it is in economic mode in cooling mode, the indoor fan will work in low flow mode. 10.
Page 15 Compressor C. D Period Outdoor fan motor 30 s 30 s Indoor fan motor Set fan speed 12 Minutes Begin Detecting the temp. Decide the working period 2. Dehumidifying function: As following chart, dehumidifying function begin a circle every 8 minutes, after continuing 7 circles, go back to “3. Begin to operation”, and begin a new circle.
Page 16 1. Set temperature: 18 - 30℃ ℃ ℃ ℃ 2. The compressor is off under the fan mode. 3. Whether the indoor fan motor works or not is decided by △ △ △ △ T (△ △ △ △ T = Ta – Ts) When Ta ≥...
Page 17 Indoor coil temperature Temperature Stop Breeze Low flow Set flow High flow Temperature Stop Breeze Low flow Set flow High flow Down 3. Compressor, indoor fan motor, reversing valve action: 1) when Ta ≤ Ts + 1℃, the compressor, outdoor fan motor, and the reversing valve connects. 2) When Ta ≥...
Page 18 2) Swing The swing louver swings up and down, swing range is about 55 3) When swing louver is under swing mode, press “AIR FLOW” button and the swing louver will stop in the direction where it is. 4) When the unit is in heating mode, the swing louver’s working is independent with compressor’s working. 9.
Page 19 五五五五 . Auto select mode When the unit is in auto select mode, indoor fan will work for 20 seconds in low flow mode, and then decide the working mode with the room temperature, and will not change the mode again. When the unit is in auto select mode, DRY,COOL, HEAT modes can be choose,.
Page 20: Wiring Diagram
coil temperature. ) 八. Sleep mode 1. 1, 2, 3, 5, 7 or 10 hours can be set in sleep mode. 2. Sleep mode in cooling or dehumidifying mode, the set temperature will rise 0.5℃ ℃ ℃ ℃ automatically, and rise 0.5℃ ℃ ℃ ℃ every 30 minutes, a total rise of 1.5℃ ℃ ℃ ℃ within 1 hour. 九.
Page 21 A SERIAL : 1. TA-09CS/TA-12CS Indoor Unit: CO M Fan Motor Y E / G N Y E / G N C oil Se nsor R oom Te mp Se n sor P owe r P lug W i re P RI NT C IR CU I T BR OA D C N11 C N10...
Page 22: Wiring Diagram
Indoor Unit: IN DO OR U NIT WI RI NG D IA GR A M BN (H) C OM 4 WF BN (S) Fan Mot or YE /GN YE /GN E XF P o w e r P l u g W i r e PRIN T CIRCUIT BR OAD C N 1 1 C N 1 0...
Page 23 C OM F a n M o t o r YE/GN YE/GN PRINT CIRCUIT BROAD P o w e r P l u g L i n e C N 7 C N 1 1 C N 1 2 C N 6 S t e m p m o t o r BN :b ro wn S e n s o r...
Page 24 Indoor Unit: Compressor Co mpre sso r Run ning Capa cito r BN(H) YE/GN ¦ ² BU (BK) BN(S) BU (BK) YE/GN BN :bro wn BU: blue BK :bla ck RD: red Outdoor Motor Motor Capacitor OR :ora nge Outdoor Unit: BN (H ) C OM BN (S )
Page 25 1. TA-07CS/TA-09CS/TA-12CS Indoor Unit: AC- N ¡ « YE/GN YE/GN YE/GN WH) ( BK) Eme rgen cy Sw itch Rec eiver Power Plug Line Coil Sensor Room Temp Sensor Outdoor Unit: C o mp r e s s o r C o mp r e s s o r R u n n i n g C a p a c it o r ¡...
Page 26 I ND OOR UN I T WIRI NG D IAGRA M Transformer AC- N BN(H) ¡ « BN(S) YE/GN 4WA Y YE/GN BN(RD) YE/GN (WH) ( Eme rgen cy Sw itch Rece iver Power Plug Line Coil Sensor Room Temp Sensor Outdoor Unit: OUTD OOR UNIT WIRING DIAGRAM C om pres s or...
Page 27 C OM F a n M o t o r YE/GN YE/GN PRINT CIRCUIT BROAD P o w e r P l u g L i n e C N 7 C N 1 1 C N 1 2 C N 6 S t e m p m o t o r BN :b ro wn S e n s o r...
Page 28 Compressor Co mpre sso r Run ning Capa cito r BN(H) YE/GN ¦ ² BU (BK) BN(S) BU (BK) YE/GN BN :bro wn BU: blue BK :bla ck RD: red Outdoor Motor Motor Capacitor OR :ora nge Outdoor Unit: BN (H ) C OM BN (S ) YE /G N...
Page 29 1. TA-09CS Indoor Unit: Transformer BN:b rown BU:bl ue BK:b lack WH:wh ite YE/G N:yello w/green RLY1 COMP (ACN) ¡ « YE/GN YE/GN ( BK) Step motor CN-HW CNE1 CN-GB Power Plug Line Coil Sensor Room Temp Sensor Outdoor Unit: BN:bro wn BU:blue BK:bla ck WH:white RD:red...
Page 30 Indoor Unit: INDOOR UNIT WIRING DIAGRAM Transformer BN:brown BU:blue BK:black WH:white RD:red YE: yellow RLY1 COMP YE/GN:yellow/green BN(H) (ACN) BN(S) ¡ « YE/GN YE/GN YE/GN ( BK) Stepmotor CN-HW CNE1 CN-GB Power Plug Line Rec eiver Room Temp Sensor Coil Sensor Outdoor Unit: OU TDO OR UN IT WI RI NG DI AGR AM BN :b rown BU:blue...
Page 31 Indoor Unit: INDOOR UNIT WIRING DIAGRAM YE/ GN Tra nsfo rmer AC- N Ind oor PG M otor Powe r Pl ug L ine AC- L ¡ « COM P TRA NS YE/ GN YE/ GN Ste pmot or DIS P Coi l Sens or Dis play Outdoor Unit:...
Page 32 INDOOR UNIT WIRING DIAGRAM YE/ GN Tra nsfo rmer AC- N Ind oor PG M otor Powe r Pl ug L ine ¡ « AC- L TRA NS COM P YE/ GN BN( H) Ste pmot or BN( S) Coi l Sens or DIS P Dis play Outdoor Unit: Com pres sor...
Page 33 TA-24C S WIRING DIAGRAM( Indoor U nit) M ai n Co nt ro l B oa rd R ec iv in g F an M ot or I nd oo r Mo to r S en so r F ee db ac k A ir A ni o n A ir A ni o n A ir A ni o n Reciving...
Page 34 T A -2 4 C HS W I RI N G D I A GR A M (I n d o or U n it ) Ma in C ont rol Boa rd Te mpe rat ure Re civ ing In doo r Mo tor Se nso r In dic ato r...
Page 35 Indoor Unit: INDOOR UNIT WIRING DIAGRAM Y E/ G N I nd o o r P G M ot or P ow e r Pl u g Li ne ¡ « C OM B N( H ) Y E/ G N S te p m ot o r B N( S ) C oi l S en s or...
Page 36 Y E/ G N I nd o o r P G M ot o r P ow e r Pl u g Li n e ¡ « N O C OM Y E/ G N Y E/ G N S te p mo t o r C oi l S en s or C NE BN:brown...
Page 37 1. TA-07CS/ TA-09CS/ TA-12CS/ TA-18CS Indoor Unit: Transformer Power Plug Line A C- L C OM P T RA N S F AN A C- N ¡ « Stepmotor F FB Emergency Switch Display BN:brown BU:blue Coil Sensor BK:black RD:red Room Temp Sensor Y/G:yell ow/green Outdoor Unit:...
Page 38 INDOOR UNI T W IRING DIAGRAM Transformer Power Plug Line A C- L C OM P T RA NS F AN A C- N ¡ « Stepmotor F FB Emergency Switch Display BN :bro w n BU: blu e Coil S ensor BK :bla c k RD: red Room T emp Sensor Y/ G:ye l lo w/g reen...
Page 39 Indoor Unit: Trans former B N: b r ow n B U : bl u e B K: b l ac k W H : wh i te Y E/ G N :y e ll o w/ g r ee n RL Y1 CO MP CN A...
Page 40 IN DOO R U NIT WI RIN G D IAG RAM Tran sformer B N: br o wn B U: b lu e B K: bl a ck W H: w hi te R D: re d Y E: ye l lo w RL Y1 CO MP Y E/ GN : ye ll o w/ gr e en...
Page 41 1、 When temperature of the indoor unit coil is below or equal to 2℃.And this temperature continues for 5 minutes running. Then indoor fan motor will automatically turn to high speed operation 2、 When temperature of the indoor unit coil is below or equals to 0℃.And the compressor has been working for three minutes running.
Page 42 Short circuit of room temperature sensor LAMP30, FLASH LAMP29, FLASH LAMP22 ON Open circuit of room temperature sensor LAMP30, FLASH LAMP29, FLASH LAMP21 22 ON Short circuit of indoor coil temperature sensor LAMP30, FLASH LAMP29, FLASH LAMP23 ON Open circuit of indoor coil temperature sensor LAMP30, FLASH LAMP29, FLASH LAMP21 23 ON...
Page 43 MODEL: TA-15C(H)F/A; TA-24C(H)F/A; TA-18C(H)F/B; TA-24C(H)F/B Features 1. Compact design and elegant appearance. 2. Quiet operation, powerful cooling and heating. 3. Three layers of filtering system, composed of static fiber filer, active carbon and light catalyst filter, is adopted to purify and deodorize room air, ensuring a cleaner and healthier living environment.
Page 44 Part 2. Micro electric control system...
Page 45 一一一一 . 40LW control function 1. Function control Cooling heating dehumidifying auto modes to choose. On-timer function Auto defrosting function Set temperature range: 18 - 30℃ Compressor restart 3 minutes delay protection Auto flow, high flow, middle flow, low flow to choose. Self diagnosis function.
Page 46 if receive any signal form the remote control, change into another mode as the signal. b． First usage，press emergency button for 3 seconds, the buzzer will buzz three times, and the unit goes into Cooling mode forcibly, the compressor, outdoor fan is on, indoor fan is under high flow mode, swing louver works, after 30 minutes, the unit will be shut down automatically, and then change into waiting mode.
Page 47 High Flow 50°C High Flow 45 °C Set air speed 36°C Set air speed 31 °C Low Flow 30°C Low Flow 25 °C Stop sending air In heat mode, indoor fan speed control and anti cold wind function work as above chart.；（1）...
Page 48 Strong mode：：：： In strong mode, when the unit is in cooling, heat, or auto mode, indoor fan speed will work in high flow mode, will change to set air flow speed after 15 minutes, during this 15 minutes, the air flow speed can not be changed.
Page 49 10. Trouble in temperature sensor (if the indicated temperature AD ≤ 5°C or > 100°C)；；；； Trouble In operation period, this trouble, timer light (yellow) will flash as below 0.5 秒 7.5 秒 In cooling mode, works in forcible cooling mode, the anti frosting function also works, if indoor temperature trouble, the compressor and the outdoor fan stop, indoor fan work as set fan speed.
Page 50 二二二二．．．． 60LW control function 1. Function control 1) Cooling heating dehumidifying auto modes to choose. 2) On-timer function 3) Auto defrosting function 4) Set temperature range: 18 - 30℃ 5) Compressor restart 3 minutes delay protection 6) Auto flow, high flow, middle flow, low flow to choose.
Page 51 ON/OFF button can be used to control the power. MODE SELECT control as below: COOL HEAT(FAN) FAN SWEED control as below: HIGH （MED） Three fan speed to choose: High、Middle、Low. When in middle air speed, the high speed and low speed indicator light on the same time.
Page 52 Only if the compressor and indoor fan run, this function works and all following conditions meet: ＜ 36℃； coil b Ta ＜ 18℃； c Ta ≤ Ts－3℃. This function will shut down if any of following conditions occur: The compressor shut down；＞...
Page 53 Compressor Indoor fan speed 10minutes 6minutes 10minutes 6minutes （Low flow）Off one circle 6. Fan mode In fan mode, the compressor stops, indoor fan works as set air speed, air flow speed can be set as high, middle and low modes. 7.
Page 54 There is 3 minutes delay when the compressor restarts. e Outdoor unit abnormal protection: When the compressor works for 5 minutes, if |Ta — T | ≤ 3℃, and last for 5 minutes, the system decide coil there are trouble in outdoor unit, the compressor and outdoor fan stop. 12.
Page 55 二）. Indoor unit control 二）二）二） 1. Auto mode 1) When Ta ≥ 25℃: choose cooling mode automatically, set temperature is 24℃; 2) 21℃≤ Ta ＜ 25℃: choose dehumidifying automatically, set temperature is 22℃; 3) Ta ＜ 21℃: choose heat automatically, set temperature is 23℃. Note: in auto mode, there is nothing shown on the panel.
Page 56 2) When any one of below conditions meet, the function cancel: a Indoor coil temp. rise to 10℃; b Ta is equal or lower than set temperature; c The unit stops or working mode changed. Note: Anti frosting temperature changes from +1℃ to -3℃. 2.2.5 Indoor evaporate anti frosting function：...
Page 57 When indoor coil temperature is lower than 5℃ ，go back to initial action, when this do not meet, the unit continue. When the fan stops in the beginning time of heat mode or working in low air speed more than 30 minutes, it will indicates trouble of outdoor, and all relay turn off.
Page 58 5. Short circuit terminal function of indoor controller OP1: power on 3 minutes delay function in short circuit. OP2: cooling only and cooling & heat to choose, short circuit is cooling only type. OP3: anti coil frosting function, open circuit is 1℃, short circuit is -3℃. OP4: room temperature showing will be cancelled in short circuit.
Page 59 4) When power switch of indoor control panel is shut, this memory will be clear, but inspection display will go on till the outdoor unit gets the “operation” signal from the indoor unit. Cooling and heat action as below: Operation Ta ≠...
Page 60 Defrosting action in heat mode as below: Ending Beginnin Indoor fan As the panel signal Swing louver 4-way valve Distributary Valve Outdoor fan Compressor Start up condition 1) When all of the following conditions meet, defrosting begin: The compressor has been in working for more than 7 minutes; Outdoor coil temperature is lower or equal than 5℃;...
Page 61 ≤ 3 7~10 10~15 ①、If the unit stops in defrosting period, next defrosting interval is 50 minutes. Note: ②、Defrosting ends, the total working time of the compressor will be clear. 4) Defrosting ends condition: (when any one of following meet) Defrosting continue working for 15 minutes.
Page 62 Outdoor coil temperature is equal or lower than 8℃. Note: forcible defrosting action and ending condition is the same as normal defrosting, but defrosting interval will be 50 minutes. 2) Power on/off function on outdoor controller: SW1：clear inspection data memorizer (button) SW2：output state indication and inspection data display switch (button) SW3：output state item display switch (switch) 3) Time shorten:...
Page 63 SW3： Outdoor Defrosting Compressor Inspection Output state Output state coil temp. interval working time code （Code）（minute）（minute） SW3-1 SW3-2 Flash Light Indoor controller order compressor to Reversal phase Short of phase Indoor controller order heat function Outdoor sensor 63H1 operation period 63H2 function Compressor runs 51C function...
Page 64: Refrigerant Flow Chart
REFRIGERANT FLOW CHART 一一一一 . Cooling Only Indoor unit Outdoor unit Connceting pipe Indoor Stop valve Indoor Outdoor heat coiled (service heat exchanger thermistor Horn joint mouth) exchanger Indoor-temp thermistor Gas & liquid separator Percolator compressor Horn joint Capillary Stop Connceting pipe...
Page 65: Cooling & Heat
二二二二 . Cooling & heat Indoor unit Outdoor unit 4-way valve Connecting pipe adiabatic socket Percolator Indoor Stop valve Indoor coil Outdoor heat thermistor (service heat exchanger Horn joint mouth) exchanger Defrost thermistor Indoor-temp thermistor Gas & liqiud separator Capillary 1...
Page 66: Maximum Length Of Refrigerant Pipe
Maximum length of refrigerant pipe Maximum Length of Refrigerant Pipe Maximum length of Outer diameter of pipe：mm Length of Connecting pipe (L)：m Model refrigerant pipe (A)：m Liquid Indoor unit Outdoor Unit 9000 BTU 9.52 12000 BTU 6.35 0.43 12.7 18000 BTU Maximum height difference Indoor unit...
Page 67 MICROPROCESSOR CONTROL 一一一一、、、、 Microprocessor Control 1. Examination flow chart for electric control section of split type air conditioners Cooling not function Press continuous cooling operation mode botton to start the unit Power supply indication Power supply indication lamp is on lamp is not on...
Page 68 2. Disco pound the Principle Chart 2.1 CPU：：：： (IC): is the core of the whole electric control board, comprised by many diodes, integrate elements and circuits, such as A/D transformer, D/A transformer, clock, decoder and voltage comparisor, etc. 2.2 Power supply circuit: Quality of the power supply will directly affect the performance &...
Page 69 ①Stepping motor is, in reality, a four-phrase motor, the processor outputs four different phases of pulse signals to enable the motor turn, meanwhile control the turning speed; ②Pulse signals are output through the four feet of CPU 23.24.25.26,then their directions are reversed by IC 2003 device to control the turning speed and turning angle of the stepping motor.
Page 70 Foot 28 for +5v 3.2 Function of all the elements for power supply RV1 10K561，C10 0.03µF/630V, main function of the two elements are for powerful electricity & wave filtering circuit； Function of Fuse 2.5A/250V is to prevent over-voltage & over-current, to protect PCB from damage caused by shorted circuit due to certain damaged element；Function of the transformer with 220V/50HZ input &14V output is to provide PCB board with liable power supply；Function of D1、D2、D3、D4 diode rectifier is to transform the alternating current provided by the transformer into direct current；C1、C2、C3、C4、C5、C6、C7 are wave-filtering capacitors；Function of the 7812...
Page 71 3.7 Gas clean process of Pipeline Ga s c le an ou tdo or u nit (n ot c lea n if you do n ot u nla de the u nit l id ) Us e re fri ger an ge in out do or un it Us e va cuu m pu mp ma int ena ce m ea tus o f is ol ati ng valv e, w hic h is 3O pen iso lat in g val ve (1/ 4 ci rcl e of val ve c ore...
Page 72 二二二二、、、、 Flow Chart 1. Microprocessor control chart for heat pump unit Indoor fan Outdoor motor fan motor Room temp. Outdoor coil temp. Indoor Outdoor Indoor coil temp. Connection 4-way valve Between indoor & outdoor Compressor Signal receiver Stepping...
Page 73 Start Time Mode Setting <Note 1> Power supply on Under <Note 2> operation Power turned on Protection Anti-stop indicator is lit Anti-stop indicator is lit <Note 3> Failure Stop Time Setting Time Setting (Use buttons up & down) (Use buttons up & down) Power indicator is lit Set time - past time = 0 Set time - past time = 0...
Page 74 于气阀充氟口，将充注软管与真空泵连接，完全打开歧管阀低压手柄，开动真空泵抽真空，开始抽真空时略松开低压阀的配管螺母，检查空气是否进入（真空泵噪音改变，多用表指示由负变为 0）然后拧紧此配管螺母，抽真空完成后，完全关紧复合表低压手柄，停下真空泵，抽真空 15 分钟以上，确认多用表是否指在-1.0 ×1Pa（-76cmHg），打开高压阀，将充注软管从低压阀充氟口拆下，上紧充氟阀螺母。第三种：使用制冷剂罐室内外连接管与室内机组及室外机组连接好，并拧紧接头螺母。使用独立的制冷剂罐将制冷剂罐充注软管与气阀充氟口连接，略微松开室外机液阀上配管螺母，松开制冷剂罐的阀，充入制冷剂 2-3 秒，然后关死。高压侧配管螺母处制冷剂气体流出 10-15 秒后，拧紧配管螺母。从充氟口拆下充注软管，用内六角扳手顶推阀芯，制冷剂放出管子，直至再也听不到噪音，然后上紧阀帽。打开室外机液阀。 2、检漏对配管各连接部分使用检漏仪或肥皂水进行检漏。若有漏气，用力矩扳手，再次拧紧连接部分，再次检漏，若仍有漏气处，寻找并修复渗漏处，直至漏气停止。再次打开高压阀，旋转阀柄直至其转不动并适当加力。打开低压阀，旋转阀柄直至转不动，再适当加力，拧紧高、低压阀阀芯螺帽，以备运转。...

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