Comfort Aire Air Conditioner PAD 91 User Manual

SERVICE MANUAL  
PORTABLE  
ROOM AIR CONDITIONER  
Models: PAD-91  
PAD-121  
Technical Service Manual  
CONTENT  
CHAPTER 1 PRODUCTS----------------------------------------1  
CHAPTER 2 FEATURES-----------------------------------------2  
CHAPTER 3 OPERATING RANGE--------------------------- 3  
CHAPTER 4 PERFORMANCE CURVE----------------------4  
CHAPTER 5 WIRING DIAGRAMS-----------------------------5  
CHAPTER 6 REMOTE CONTROLLER-----------------------6  
CHAPTER 7 REFRIGERATION CYCLE----------------------8  
CHAPTER 8 INSTALLATIONS--------------------------------- 9  
CHAPTER 9 TROUBLESHOOTING--------------------------12  
CHAPTER 10 EXPLODED VIEW--------------------------------13  
CHAPTER 11 PARTS LIST…………………………………15  
Technical Service Manual  
CHAPTER 1  
PRODUCTS  
Window Type Room Air Conditioner  
Model  
PAD-91  
PAD-121  
No.  
1
No.  
3
Model  
PAD-121-E  
2
1
Technical Service Manual  
CHAPTER 2 FEATURES  
MODE  
DESCRIPTION  
COOLING Cools, dehumidifies and filters the room air. Maintains desired room temperature.  
FAN ONLY Re-circulates and filters the room air. Maintains constant air movement in the room.  
1.The appliance can set at different indoor fan motor speed by pressing the FAN  
FAN SPEED  
SPEED button on the remote controller.  
HIGH  
2. When this symbol is being displayed on the LCD of the remote controller, the  
LOW  
signal is transmitting from the remote controller to the air conditioner.  
TEMP. SET  
Press DOWN button once, the set temperature is decreased by 1°F.  
UP  
Press UP button once, the set temperature is increased by 1°F.  
DOWN  
Automatically switches the appliance ON at preset time intervals, ensuring a  
TIMER  
comfortable environment before you return home, or switches OFF the appliance  
automatically when you sleep without wasting electricity.  
When the room temperature is higher than the setting temperature 4°F, the  
compressor is on. When the room temperature is lower than the setting  
temperature, the compressor is off and the fan motor runs low speed..  
When the room temperature is lower than 66°F , the unit turns off. (For Electronic  
Type)  
ENERGY  
SAVING  
2
Technical Service Manual  
CHAPTER 3 OPERATING RANGE  
Temperature rang for air conditioner  
z
z
z
The preset temperature of the appliance ranges from 66°F to 88°F.  
The ambient temperature of the cooling only air conditioner ranges from 64.4°F to 109.4°F.  
The rated cooling operation test condition is as following.  
Indoor DB/WB temperature:  
80°F /67°F  
outdoor DB/WB temperature: 95°F /75°F  
The rated heating operation test condition is as following.  
indoor DB/WB temperature: 20/Max.15℃  
outdoor DB/WB temperature: 7/6℃  
z
z
z
3
Technical Service Manual  
CHAPTER 4 PERFORMANCE CURVES  
PERFORMANCE CURVE  
z COOLING UNIT  
4
Technical Service Manual  
CHAPTER 5 WIRING DIAGRAM  
1.CIRCUIT DIAGRAM FOR PAD-91 & PAD-121  
N
L
2.CIRCUIT DIAGRAM FOR PAD-121-E  
N
1L  
5
Technical Service Manual  
CHAPTER 6 REMOTE CONTROLLER  
Ò£ ¿Ø ÷Æ  
4
9
5
6
2
3
8
7
1
The remote controller transmits signals to the system.  
1. ON/OFF BUTTON  
z When button is pressed, the unit will start operating or stop  
operating, if it is in operation.  
z MODE BUTTON  
z Used to select operation mode.  
SMART mode  
6
Technical Service Manual  
COOLING mode  
DRY mode  
FAN ONLY mode  
3. FAN BUTTON  
z Used to select the indoor fan motor speed.  
Automatic fan speed  
High fan speed  
Low fan speed  
4.TEMPERATURE SETTING BUTTON  
z Used to set room temperature.  
z Used to adjust time in TIMER mode.  
5. SWING BUTTON  
z Press to adjust airflow direction.  
6. SMART BUTTON  
z Used to enter fuzzy logic operation directly, regardless if the unit  
is operating or not  
7. TIMER ON BUTTON  
z Used to set or cancel “timer on” operation.  
8. TIMER OFF BUTTON  
z Used to set or cancel the “timer off” operation.  
9. SUPER BUTTON  
z Used to start or stop fast cooling.  
The indication symbols on LCD:  
Indication symbols on LCD:  
Signal transmit.  
Smart indicator  
Auto fan speed  
Used to regulate temperature  
in Smart mode or Dry mode  
(See page 9 "Smart Mode"  
for details)  
High fan speed  
Low fan speed  
Cooling indicator  
Dry indicator  
Indicator of Timer on and Timer off  
Display real time  
Display set temperature  
Fan only indicator  
7
Technical Service Manual  
CHAPTER 7 REFRIGERATION CYCLE  
1. Cooling only appliance  
2. Heat pump  
I ndoor uni t  
evapor at or  
技术参数:  
l i qui d si de  
2- way val ve  
gas si de  
3- way val ve  
Out door uni t  
check val ve  
accumul at or  
compr essor  
capi l l ar y  
reverse val ve  
condenser  
heat i ng cool i ng  
def r ost  
Fl ow of ref ri gerant  
8
Technical Service Manual  
CHAPTER 8 INSTALLATION  
1. Installation accessories  
Description  
Quantity  
Air inlet hose  
Stretches from 17 3/4 (45cm) up to 70 5/8 (180cm)  
Air outlet hose  
2/set  
2/set  
Stretches from 17 3/4 (45cm) up to 70 5/8 (180cm)  
Window exhaust adapter  
2pc  
Window/patio door slider kit  
3/set  
From 28 3/8 (72cm) up to 55 5/8 (140cm)  
Window/patio door slider kit  
Air inlet hose Window exhaust adapter  
Air outlet hose  
Adapter  
Window exhaust adapter  
Adapter  
Fig .8.1  
2. Window kit installation  
Your window kit is designed to fit most standard vertical and  
horizontal window applications. However, it may be necessary for you to  
improvise/modify some aspects of the installation procedures for certain  
types of windows. Please refer to minimum and maximum window  
openings.(Fig 8.2 and Fig 8.3)  
9
Technical Service Manual  
1
3
Window slider kit  
minimum: 281/8(72cm)  
maximum:553/8(140cm)  
Fig. 8.2  
Fig .8.3  
3. Select the best location  
z Beside the window, door or French window.  
z Keep the distance between the return air outlet and the wall or  
other obstacles to at least 20 inches (50cm)  
z Fix one end of the air hose on the air intake or outlet at the back of  
the unit.  
z Extend the air hose to the clearance between window, door, or  
French window, or wall hole.  
z Air outlet or intake should not be blocked by protective grid or  
objects.  
z The distance between two ends of the air hose should be kept at  
minimum of 8 inches (200mm)  
Note: the cooling capacity will decrease if only the air discharge  
hose is used, but air outlet temperature will be lower.  
Installation instruction  
z Air outlet or intake opening should not be blocked by curtain, or  
other objects.  
z Hose opening should not be block by shutters or other similar  
objects.  
z Do not bend the air hose when assembling; keep it straight as  
figure 3.  
z When operating in cool or dry mode, condensate will accumulate  
in the water tank. When the tank is full, water full indicator will  
light up (red) and LCD will display the sign E. The unit will stop  
operating.  
Shut off the power supply, pull out the rubber plug in drain port at  
the rear of the unit, drained the water into a container or other  
appropriate area.  
Note: water should be drained off when the water full light is on,  
otherwise, the appliance will not operate.  
10  
Technical Service Manual  
Installation sequence  
Before starting the unit  
1. Select a suitable location, making sure you have easy access to an  
electrical outlet.  
2. Install the flexible exhaust hose and adjustable window slider kit as  
depicted in Fig.8.4  
Fig.8.4  
NOTE: 1. Step 2 is required only if operating in cooling or dry mode, In  
cooling mode, you can install both hoses or just the air  
discharge hose. In dry mode install only air discharge hose.  
2. When operating, the hoses should not be blocked by curtains  
or other objects.  
3. Plug the appliance into an 115V/60Hz grounded electrical outlet.  
Note: Do not use a regular extension cord.  
4. To start the appliance, press On/Off button.  
Notes  
z Please read this manual before installing and using this  
equipment  
z Test run the air conditioner after installing and record details of  
operation.  
z Type of fuse used on indoor unit controller is 50T, with rating 2.5  
A, T, 250V.  
z The fuse for the unit is to be provided by the user according to  
the current at maximum power input. Alternatively, used a  
over-current protective device.  
11  
Technical Service Manual  
CHAPTER 9 TROUBLESHOOTING  
The following cases may not always be a malfunction, please check it  
before calling for service.  
Trouble  
Analysis  
Does not operate  
z Is the fuse blown or protector tripped?  
z Please wait for 3 minutes and start again,  
protector device may be preventing unit to  
start.  
z Is batteries in the remote controller  
defective?  
z Is the plug correctly plugged?  
Operate for a short while z Is the set temperature very close to the room  
only  
temperature? Lower the set temperature.  
z Air discharge is blocked by foreign object?  
Remove the foreign object.  
Operating but not cooling z Is the door or window open?  
z Is there is heating appliance operating in the  
same room, like heater.  
z The air filter is clog, clean it.  
z Air discharge or inlet hose is blocked.  
z Set temperature is too high.  
Water  
leaking  
when z Drain the condensate before moving.  
moving the unit.  
Stop operating and water z Pull out the rubber plug to drain water.  
full indicator lamp lights z If this is very frequent, contact the dealer.  
up.  
12  
Technical Service Manual  
CHAPTER 11 EXPLODED VIEW  
1.Exploded View for PAD-91 & PAD-121  
13  
Technical Service Manual  
2.Exploded View for PAD-121- E  
14  
Technical Service Manual  
CHAPTER 12 SPARE PART LIST  
MODEL: PAD- 91 & 121  
ITEM  
PART DESCRIPTION  
PART NO.  
Q'ty  
1
2
3
4
5
6
7
8
Front Panel assembly  
Upper Motor  
Upper Motor Fixed Board  
Air Channel  
Upper Centrifugal Fan  
Oriented Board  
81006195  
8140228  
8110110  
810124  
8101161  
8101027  
813032124  
813032160  
813032122  
8130181  
813032157  
813032119  
810125  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
4
1
3
3
1
1
1
1
1
1
1
1
2
1
1
1
2
2
1
1
1
2
Discharge pipe  
Suction pipe (PAD-91)  
Suction pipe (PAD-121)  
Condenser assembly  
Capillary Assembly (PAD-91)  
Capillary Assembly (PAD-121)  
Front air channel of Condenser  
Lower Centrifugal Fan  
Lower Motor  
8
9
10  
10  
11  
12  
13  
14  
15  
16  
17  
18  
18  
19  
20  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
34  
35  
36  
37  
38  
39  
40  
41  
8101162  
8140229  
810126  
Back air channel of Condenser  
Back Board assembly  
Filter  
8100912  
8110521  
8210248  
1411986  
1411701  
8110919  
8130180  
810076  
8101028  
81409165  
1411144  
81409166  
81006196  
81409167  
8110222  
812021  
8100282  
817042  
817028  
1304444  
1304443  
8110615  
815043  
8141016  
8141017  
8110614  
1411144  
8110223  
81401355  
813031327  
813031327  
8130721  
8130722  
8120918  
8120919  
8120920  
8110117  
Shower Case  
Running capacitor (PAD-91)  
Running capacitor (PAD-121)  
Mid partition assembly  
Evaporator assembly  
Oriented Channel assembly  
Air Outlet Grid  
Control PCB. Assembly  
Upper Fan capacitor  
Display PCB. Assembly  
Control Panel  
Recevier PCB. Assembly  
Front Knighthead  
Castors  
Chassis  
Gasket  
Compressor Bolt  
Compressor (PAD-91)  
Compressor (PAD-121)  
float  
relay  
toggle switch (high)  
toggle switch (low)  
Water pump assembly  
Lower Fan capacitor  
Back Knighthead  
Remote controller  
Discharge air hose  
Supply air hose  
circular air hose end  
square air hose end  
inline mounting plate  
air hose mounting plate B  
air hose mounting plate A  
accessory bracing sheet  
15  
Technical Service Manual  
MODEL: PAD-121-E  
ITEM  
1
PART DESCRIPTION  
PART NO.  
81006195  
8140228  
8110110  
810124  
Q'ty  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
4
1
3
3
1
1
1
1
1
1
1
2
1
1
Front Panel assembly  
Upper Motor  
2
3
Upper Motor Fixed Board  
Air Channel  
4
5
Upper Centrifugal Fan  
Oriented Board  
8101161  
8101027  
813031472  
813031720  
8130181  
813031468  
810125  
6
7
Discharge pipe  
8
Suction pipe  
9
Condenser assembly  
Capillary Assembly  
Front air channel of Condenser  
Lower Centrifugal Fan  
Lower Motor  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
25A  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
81011124  
8140229  
810126  
Back air channel of Condenser  
Back Board assembly  
Filter  
8100912  
8110521  
8210248  
1411986  
8110919  
8130180  
8140275  
810076  
Shower Case  
Running capacitor  
Mid partition assembly  
Evaporator assembly  
Louver Motor  
Oriented Channel assembly  
Air Outlet Grid  
8101028  
81409243  
1411144  
814058  
Control PCB. Assembly  
Upper Fan capacitor  
Transformer  
Display PCB. Assembly  
Control Panel  
81409244  
81006196  
81409167  
8110222  
812021  
Recevier PCB. Assembly  
Front Knighthead  
Castors  
Chassis  
8100282  
817042  
Gasket  
Compressor Bolt  
Compressor  
817028  
1304381  
8110615  
815043  
Dobber  
Jiggle switch Fixer  
Alram Jiggle switch  
Jiggle switch  
8141016  
8141017  
8110614  
1411144  
8110223  
8140426  
81401355  
Water pump assembly  
Lower Fan capacitor  
Back Knighthead  
PTC Heater  
Remote Controler  
16  

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