Qs09-vj115 qs12-vj115 qs09-vp115 qs12-vp115 (refrigerant r410a) model: service manual.
Service manual table of contents part Ⅰ : technical information ................................................. 1 1. Summary ........................................................................................................................ 1 2. Specifications ...................................
Service manual 8.5 installation of indoor unit .................................................................................................. 26 8.6 installation of outdoor unit ............................................................................................... 29 8.7 vacuum pumping ...
1 technical information service manual 1. Summary indoor unit: outdoor unit: part Ⅰ : technical information qs09-vj115 qs12-vj115 qs09-vp115 qs12-vp115 remote controller: yb1faf on/off mode fan clock timer on x-fan temp timer off turbo sleep light.
2 technical information service manual 2. Specifications 2.1 specification sheet model qs09-vj115 qs09-vp115 qs12-vj115 qs12-vp115 product code cb16300021_k90639 cb16300041_k90639 power supply rated voltage v~ 115 115 rated frequency hz 60 60 phases 1 1 power supply mode outdoor outdoor cooling capa...
3 technical information service manual the above data is subject to change without notice; please refer to the nameplate of the unit. Outdoor unit outdoor unit model qs09-vp115 qs12-vp115 outdoor unit product code cb190w0041_k90639 cb190w0061_k90639 compressor manufacturer zhuhai landa compressor co...
4 technical information service manual 2.2 operation characteristic curve 2.3 capacity variation ratio according to temperature cooling: heating: 0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100 120 80 25.0 22.5 20.0 17.5 15.0 12.5 10.0 7.5 5.0 2.5 0 compressor speed (rps) 25.0 22.5 20.0 1...
5 technical information service manual 2.5 cooling and heating data sheet in rated frequency 2.4 noise curve cooling: rated cooling condition(°f) (db/wb) model pressure of gas pipe connecting indoor and outdoor unit inlet and outlet pipe temperature of heat exchanger fan speed of indoor unit fan spe...
6 technical information service manual 3. Outline dimension diagram 3.1 indoor unit unit:inch 33 1/4" 5 1/8" 21 1/3" 2 5/7" 4 7/8" 2 1/6" 2 1/6" 6 4/5" 10 5/6" 7".
7 technical information service manual 21 1/4" 30 5/9" 10 1/8" w d 11 1/4" h 3.2 outdoor unit unit:inch model w h d qs09-vp115 33 2/5" 21 1/4" 12 3/5" qs12-vp115 33 2/5" 23 1/3" 12 3/5".
8 technical information service manual 4. Refrigerant system diagram connection pipe specification: liquid : 1/4" (6 mm) gas : 3/8" (9.52mm) indoor unit outdoor unit indoor unit outdoor unit cooling heating accumlator 4-way valve cooling discharge suction discharge suction heat exchanger (evaporator...
9 technical information service manual 5. Electrical part 5.1 wiring diagram ● indoor unit ●instruction symbol symbol color symbol symbol color symbol name wh white gn green cap jumper cap ye yellow bn brown comp compressor rd red bu blue grounding wire yegn yellow/green bk black / / vt violet og or...
10 technical information service manual ● outdoor unit these wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Sat l3 l3 cn2 heat1 heat-n heat2 θ rt3 rt2 θ rt1 θ tube tem.Sensor tem.Sensor exhaust outroom tem.Sensor n heater (chassis) (comp) heater...
11 technical information service manual 5.2 pcb printed diagram ● top view indoor unit ● bottom view 1 neutral wire interface 2 transformer input 3 pg motor interface 4 neutral and live wire communication interface 5 auto button 6 pg motor feedback interface 7 up&down swing interface 8 jumper cap 9 ...
12 technical information service manual 1 2 3 4 5 6 7 8 9 11 10 ● top view outdoor unit ● bottom view 1 port of dc fan motor 4 port of compressor electric heating band 7 port of power supply neutral wire 10 port of electric expansion valve 2 port of ac fan motor 5 port of compressor electric heating...
13 technical information service manual 6. Function and control 6.1 remote controller introduction buttons on remote controller introduction for icons on display screen introduction for buttons on remote controller on/off button 2 3 1 5 6 4 8 9 7 11 12 10 mode button +/- button fan button timer on/t...
14 technical information service manual 4. Fan button pressing this button can set fan speed circularly as: auto (auto), low( ) ,medium( ),high( ). Note: ● under auto speed, fan motor will adjust the fan speed (high, medium or low speed) according to ambient temperature. ● fan speed under dry mode i...
15 technical information service manual controller blinks. Press "+" or "-"button to adjust timer on setting. After each pressing "+" or "-"button, timer on setting will increase or decrease 1min. Hold "+" or "-"button, 2s later, the time will change quickly until reaching your required time. Press ...
16 technical information service manual note: ● during operation, point the remote control signal sender at the receiving window on indoor unit. ● the distance between signal sender and receiving window should be no more than 8m, and there should be no obstacles between them. ● signal may be interfe...
17 technical information service manual 1.Temperature parameters ◆ indoor preset temperature (tpreset) ◆ indoor ambient temperature (tamb.) ◆补偿温度（t 补） 2.Basic functions once the unit energized,the compressor shall never be restarted except 3mins interval at least.For the first energization,if the un...
18 technical information service manual mode switchover. Protection function is the same as that in other modes. The selection method for auto operation mode in details is as below: a. When tamb. ≥79°f, the unit operates in cooling mode. The defaulted set temperature is 77°f; b. When tamb. ≤72°f, th...
19 technical information service manual the unit will keep operating at that temperature. 2. Heating mode: 2.1 when initial set temperature is 61°f, the unit will operate at that temperature; 2.2 when initial set temperature range is 63~68°f, if turning on sleep function, temperature will decrease 1...
20 technical information service manual (9) display 1. Upon energization within 2s, the unit will display all icons. Under standby state, running indicating mark is displayed. If the unit is started by remote controller, running indicating mark gives off light; meanwhile, the mark of current running...
31 installation and maintenance service manual 9. Maintenance 9.1 troubleshooting for normal malfunction note: when replacing the controller, make sure insert the wire jumper into the new controller, otherwise the unit will display c5. The remote controller does not receive signals (after it is powe...
32 installation and maintenance service manual improper set of temperature adjust set temperature if cooling (heating) load is proper check the forecasted load of cooling (heating) the refrigerant has leakage or is insufficient check and fill the leakage, then vacuumize it and supplement the re- fri...
33 installation and maintenance service manual the indoor fan motor is burned or breaks or has the heat protector malfunction. Replace the fan motor or the defective part. Wrong connection make the correction connection based on the circuit drawing. The fan capacitor has open circuit or is damaged. ...
34 installation and maintenance service manual adjust fan location fan of indoor unit contacts other parts foreign object in indoor unit take out the foreign object adjust support washer of compressor, and tighten loosen screws touch of pipeline of outdoor unit separate the touching pipeline. Abnorm...
35 installation and maintenance service manual 9.2 error code list no. Malfunction name display method of indoor unit display method of outdoor unit a/c status possible causes dual-8 code display indicator display (during blinking, on 0.5s and off 0.5s) indicator has 3 kinds of display status and du...
36 installation and maintenance service manual no. Malfunction name display method of indoor unit display method of outdoor unit a/c status possible causes dual-8 code display indicator display (during blinking, on 0.5s and off 0.5s) indicator has 3 kinds of display status and during blinking, on 0....
37 installation and maintenance service manual no. Malfunction name display method of indoor unit display method of outdoor unit a/c status possible causes dual-8 code display indicator display (during blinking, on 0.5s and off 0.5s) indicator has 3 kinds of display status and during blinking, on 0....
38 installation and maintenance service manual no. Malfunction name display method of indoor unit display method of outdoor unit a/c status possible causes dual-8 code display indicator display (during blinking, on 0.5s and off 0.5s) indicator has 3 kinds of display status and during blinking, on 0....
39 installation and maintenance service manual no. Malfunction name display method of indoor unit display method of outdoor unit a/c status possible causes dual-8 code display indicator display (during blinking, on 0.5s and off 0.5s) indicator has 3 kinds of display status and during blinking, on 0....
40 installation and maintenance service manual no. Malfunction name display method of indoor unit display method of outdoor unit a/c status possible causes dual-8 code display indicator display (during blinking, on 0.5s and off 0.5s) indicator has 3 kinds of display status and during blinking, on 0....
41 installation and maintenance service manual no. Malfunction name display method of indoor unit display method of outdoor unit a/c status possible causes dual-8 code display indicator display (during blinking, on 0.5s and off 0.5s) indicator has 3 kinds of display status and during blinking, on 0....
42 installation and maintenance service manual 9.3 troubleshooting for main malfunction (1) capacitor charge fault (fault with outdoor unit) (ap1 below refers to the outdoor control panel) main check points: ●use ac voltmeter to check if the voltage between terminal l and n on the wiring board is wi...
43 installation and maintenance service manual (2) ipm protection, out-of-step fault, compressor phase overcurrent (ap1 below refers to the outdoor control panel) main check points: ●is the connection between control panel ap1 and compressor comp secure? Loose? Is the connection in correct order? ●i...
44 installation and maintenance service manual (3)high temperature and overload protection diagnosis (ap1 hereinafter refers to the control board of the outdoor unit) mainly detect: ●is outdoor ambient temperature in normal range? ●are the outdoor and indoor fans operating normally? ●is the heat dis...
45 installation and maintenance service manual (4) start-up failure (following ap1 for outdoor unit control board) mainly detect: ●whether the compressor wiring is connected correct? ●is compressor broken? ●is time for compressor stopping enough? Fault diagnosis process: y n y n n y y n power on the...
46 installation and maintenance service manual (5) out of step diagnosis for the compressor (ap1 hereinafter refers to the control board of the outdoor unit) mainly detect: ●is the system pressure too high? ●is the input voltage too low? Fault diagnosis process: out of step occurs once the unit is p...
47 installation and maintenance service manual (6)overload and air exhaust malfunction diagnosis (following ap1 for outdoor unit control board) mainly detect: ●is the pmv connected well or not? Is pmv damaged? ●is refrigerant leaked? Fault diagnosis process: 20 minutes after the complete unit is pow...
48 installation and maintenance service manual (7)power factor correct or (pfc) fault (a fault of outdoor unit) (ap1 hereinafter refers to the control board of the outdoor unit) mainly detect: ●check if the reactor (l) of the outdoor unit and the pfc capacitor are broken fault diagnosis process: y y...
49 installation and maintenance service manual (8) communication malfunction: (following ap1 for outdoor unit control board) mainly detect: ●is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? ●detect the indoor and outdoor units connection wire...
50 installation and maintenance service manual 10. Exploded view and parts list 10.1 indoor unit 24 26 25 23 42 35 33 34 32 31 30 29 28 27 20 38 39 41 37 36 40
51 installation and maintenance service manual no. Description part code qty qs09-vj115 qs12-vj115 product code cb163n0021_k90639 cb163n0041_k90639 1 temperature sensor 390000591 390000591 1 2 temperature sensor 390000451 390000451 1 3 remote controller 305100482_k90639 305100482_k90639 1 4 evaporat...
52 installation and maintenance service manual 10.2 outdoor unit qs09-vp115 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33.
53 installation and maintenance service manual no. Description part code qty qs09-vp115 product code cb190w0041_k90639 1 front grill 01473012 1 2 cabinet 0143305801p 1 3 axial flow fan 10333012 1 4 electrical heater 76510010 1 5 fan motor 15013160 1 6 chassis sub-assy 01203881p 1 7 drainage connecte...
54 installation and maintenance service manual qs12-vp115.
55 installation and maintenance service manual no. Description part code qty qs12-vp115 product code cb190w0061_k90639 1 front grill 01473012 1 2 front panel 0153501201 1 3 axial flow fan 10333012 1 4 fan motor 15013160 1 5 electrical heater 76510010 1 6 chassis sub-assy 01203881p 1 7 drainage conne...
56 installation and maintenance service manual 11. Removal procedure 11.1 removal procedure of indoor unit caution: discharge the refrigerant completely before removal. Procedure steps 1.Remove panel 2.Remove filter 3.Remove horizontal louver and front case panel filter front case horizontal louver ...
57 installation and maintenance service manual 5.Remove evaporator 4.Remove electric box assy 1 2 remove the screws of the press plate of connecting pipe.Remove press plate of connecting pipe. Remove the screws of the electric box assy.Remove the screws at the joint of the earthing wire and evaporat...
58 installation and maintenance service manual 1 2 remove screws of step motor and then remove the motor. Remove the screw of the motor clamp and then remove the clamp. Remove the screws at the joint of the cross flow blade and the motor. Take down the motor. Procedure steps motor clamp step motor m...
59 installation and maintenance service manual 11.2 removal procedure of outdoor unit qs09-vp115 procedure steps 1.Remove valve cover and handle 3.Remove rear grill and front grill 2.Remove top cover twist off the screws used for the valve cover and handle, pull the valve cover and handle upward to ...
60 installation and maintenance service manual 4.Remove front panel 5.Remove right side plate remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel. Remove connection screws connecting the right side plate with the valve support a...
61 installation and maintenance service manual 8.Remove motor and motor support 8.Remove motor and motor support remove the 4 tapping screws the motor.Pull out the lead-out wire and remove themotor. Remove the 2 tapping screws motor support. Lift motor support to re-move it. Procedure steps motor su...
62 installation and maintenance service manual procedure steps 12.Remove compressor and electric expansion valve sub-assy remove the 3 footing screws of the compressor and remove the compressor. Then remove the electric expansion valve sub-assy. Compressor 11.Remove clapboard sub-assy loosen the scr...
63 installation and maintenance service manual qs12-vp115 procedure steps 1.Remove valve cover and handle 3.Remove rear grill and front grill 2.Remove top cover top cover front grill handle valve cover rear grill twist off the screws used for fixing the valve cover and handle, pull the valve cover a...
64 installation and maintenance service manual 4.Remove front panel 5.Remove right side plate remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel. Remove connection screws connecting the right side plate with the valve support a...
65 installation and maintenance service manual 8.Remove motor and motor support 7.Remove axial flow blade remove the 4 tapping screws the motor.Pull out the lead-out wire and remove themotor. Remove the 2 tapping screws motor support. Lift motor support to re-move it. Procedure steps motor support m...
66 installation and maintenance service manual procedure steps 12.Remove compressor and electric expansion valve sub-assy remove the 3 footing screws of the compressor and remove the compressor. Then remove the electric expansion valve sub-assy. Compressor 11.Remove gas valve and liquid valve twist ...
67 installation and maintenance service manual appendix: 1.Standard length of connection pipe ● 5m, 7.5m, 8m. 2.Min. Length of connection pipe is 3m. 3.Max. Length of connection pipe and max. High difference. 4.The additional refrigerant oil and refrigerant charging required after prolonging connect...
68 installation and maintenance service manual f:inspection ● check the quality of expanding port. If there is any blemish, expand the port again according to the steps above. The length is equal improper expanding leaning damaged surface crack uneven thickness smooth surface downwards pipe shaper u...
69 installation and maintenance service manual appendix 4: list of resistance for ambient temperature sensor resistance table of ambient temperature sensor for indoor and outdoor units(15k) temp(°f) resistance(kΩ) temp(°f) resistance(kΩ) temp(°f) resistance(kΩ) temp(°f) resistance(kΩ) -2 138.1 68 18...
70 installation and maintenance service manual resistance table of ambient temperature sensor for indoor and outdoor units(20k) temp(°f) resistance(kΩ) temp(°f) resistance(kΩ) temp(°f) resistance(kΩ) temp(°f) resistance(kΩ) -2 181.4 68 25.01 138 5.13 208 1.427 0 171.4 70 23.9 140 4.948 210 1.386 1 1...
71 installation and maintenance service manual resistance table of ambient temperature sensor for indoor and outdoor units(50k) temp(°f) resistance(kΩ) temp(°f) resistance(kΩ) temp(°f) resistance(kΩ) temp(°f) resistance(kΩ) -20 853.5 50 98 120 18.34 190 4.75 -18 799.8 52 93.42 122 17.65 192 4.61 -17...
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