akira AC-W17CL User manual

Air Conditional
Service Manual
   
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, ,  , .

ModelNo:AC-W17CL
Version 1.0
2
7
Model:
AC-W17CL
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Model No: AC-W17CL
Version 1.0
CONTENTS
TECHNICAL SPECIFICATIONS.................................................................................................... 4
FEAURE OF PRODUCT ................................................................................................................. 5
PRINCIPLE OF OPERATION ......................................................................................................... 6
SYSTEM DIAGRAM....................................................................................................................... 7
EXPLODED VIEW .......................................................................................................................... 8
PART LIST ....................................................................................................................................... 9
OPERATION STEP ........................................................................................................................ 12
TROUBLE SHOOTING................................................................................................................. 18
CIRCUIT DIAGRAM..................................................................................................................... 27
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Model No: AC-W17CL
Version 1.0
TECHNICAL SPECIFICATION
ITEM MODEL
FUNCTION COOLING
Power supply Single phase, 50Hz, 230V
Capacity (W) 5000
Rated input power (W) 2200
Rated current A 10.5
Refrigerant R22
Refrigerant charge (kg) 1.38
Recirculated air flow (m3/h) 780
Fan motor speed r/min (220V) 935 15
Fan motor output power (W) 115~130
Fan motor capacitor ( F) 8
Fan diameter & length 223.5 104
Heat exchanger Aluminum foil and copper tubes
No. of rows and fin spacing 4 2.0mm
Louver motor 3.5W
Control mode Manual control
Indoor side
Noise level dB(A) 60
Control of cooling medium Restriction by capillary
Type Totally-enclosed and rotary
Model SHX33SC4-U
Power (W) 1875
Operating current (A) 8.7
Type of protector Internal installed
Starting mode Capacitor-run
Compressor
Actuating temperature of protector () 100 5
Heat exchanger Aluminum foil and copper tubes
No. of rows and fin spacing 3, 1.8mm
Fan diameter & height (mm) 392 85
Outdoor side
Noise level dB(A) 65
Width (mm) 660
Depth (mm) 756
Outline
Height (mm) 436
Net weight (kg) 72
Controlled temperature range & accuracy ( ) 15~30 1.5
Service ambient temperature ( ) 18~43
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Model No: AC-W17CL
Version 1.0
FEATURES OF PRODUCT
Models AC-W17CL has their indices remarkably improved as a whole and gained the lead among the
products of the same kind in the market. A brief account of their features is given below.
(1) Fine Appearance.
The design of appearance has changed from the dull design style of traditional window type air
conditioners. An internationally prevailing streamline design is employed for the panels. Air
outlet vents are provided in conjunction with the automatically swinging vertical louvers.
(2) Low Noise. Low-speed, low-noise and large-diameter impeller fans are used.
The indoor and outdoor fans are driven by the same motor. The noise generated indoors and
outdoors is notably reduced by optimized parameters of the fans and air ducts in addition to
other silencing and damping measures. Which live up to the national loading standard.
(3) High Efficiency and Energy Saving. Bridge-type finned heat exchangers ribbed copper tubes
and hydrophilic aluminum foil and other advanced technology are employed for the novel
window type air conditioners so that their heat exchange efficiency is significantly raised while
their volume reduced.
(4) High Safety.
The novel window type air conditioners are design strictly in compliance with the requirements
of the new National Standard GB4706.32 and the CE Certification Standard for room air
conditioners and appropriate measures such as earthing of the compressors and improving the
tensile strength of the power cords are taken with a view to better ensuring safety and reliability.
Moreover, the performance of the novel window type air conditioners has been improved and their
service life extended by use of superior-quality and high-precision technology and assembly.
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Model No: AC-W17CL
Version 1.0
PRINCIPLE OF OPERATION
After the power supply is switched on and the machine is set to COOL mode, with the compressor being
operating, the low-temperature and low-pressure refrigerant vapor is sucked into it and then compressed
into high-temperature, high-pressure gas. The gas is cooled into liquid by the air through the outdoor
heat-exchanger. The liquid comes into the indoor unit after being throttled by the capillary. The
refrigerant in the indoor heat-exchanger evaporates, absorbing heat and reducing the room temperature.
The evaporated refrigerant vapor then returns to the outdoor unit where it is sucked into the compressor
again and discharged from the same after being compressed. By cycling in this manner, the purpose of
reducing the room temperature is fulfilled.
After the power supply is switched on and the machine is set to HEAT mode, the coil of the reversing
valve is energized. With the compressor being operating, the high-temperature, high-pressure refrigerant
vapor discharged from it first comes to the heat exchanger of the indoor unit where it is cooled, releasing
heat and making the room temperature rise. The cooled high-pressure refrigerant is throttled in the
outdoor unit and returns to the compressor after evaporation. By cycling in this manner, the purpose of
increasing the room temperature is fulfilled.
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345
6
78
6
4
2
1
7
35
8
66
44
22
11
77
33 55
88
6666
4444
2222
1111
7777
3333 5555
8888
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Model No: AC-W17CL
Version 1.0
SYSTEM DIAGRAM
1. Indoor heat exchanger
2. Fan
3. Fan motor
4. Fan
5. Outdoor heat exchanger
6. Compressor
7. Capillary
The direction of refrigerant flow
The direction of air flow
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Model No: AC-W17CL
Version 1.0
EXPLODED VIEW
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Model No: AC-W17CL
Version 1.0
PART LIST
Code Description Code Description
641001 Filter net 641052 Bracing ( )
641002 Panel assembly 641053 Bracing ( )
641003 Vertical louvers 641054 Back partition plate
641004 Electrical unit 641055 Propeller fan
641005 Knob 641056 Plain washer
641006 Control panel 641057 Spring washer
641007 Washer 641058 Nut
641008 Plain washer 641059 Back cover plate
641009 Bolt 641060 Condenser assembly
641010 Clamp of fix temperature tube 641061 Strapping
641011 Water collecting plate 641062 Capillary tube
641012 Connecting clamp 641063 Liquid filling pipe
641013 Base plate assembly 641064 Filter
641014 Rubber ring 641065 Gas exhaust pipe
641015 Drain mouth 641066 Liquid outlet pipe
641016 Evaporator assembly 641067 Pipe sleeve
641017 Distributing implement 641068 Frame assembl0y
641018 Liquid inlet pipe(1) 641069 Fence net
641019 Liquid inlet pipe(2) 641070 Screw
641020 Liquid inlet pipe(3) 641071 Factory name scutcheon
641021 Sheath 641072 Nameplate
641022 Strapping 641073 Sheer adhesive tape
641023 Three direction connecting pipe 641074 Damping foam
641024 Curving pipe 641075 Top box
641025 Sheath 641076 Operation manual
641026 Fork pipe 641077 Film cover
641027 Gas inlet pipe 641078 Corner support
641028 Strapping 641079 Bottom box
641029 Sheath 641080 Packing tape
641030 Compressor damping ring 641081 Boat switch
641031 Rubber washer 641082 Foam block
641032 Terminal box cover 641083 Fixing pin
641033 Nut 641084 Fixing clamp
641034 Nut 641085 Wind-door lever
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Model No: AC-W17CL
Version 1.0
Code Description Code Description
641035 Earthing lead 641086 Eccentricity wheel
641036 Compressor 641087 Foam block
641037 Wind-path partition plate 641088 Foam block
641038 Volute 641089 Foam block
641039 Centrifugal fan 641090 Temperature controller
641040 Wiring scutcheon 641091 Selector Switch
641041 Front cover plate 641092 Fixing lead block (bottom)
641042 Screw 641093 Fixing lead block (top)
641043 Wind-door 641094 Fan motor capacitor
641044 Saddle lead clamp 641095 Capacitor clamp
641045 Wiring ring 641096 Compressor capacitor
641046 Front partition plate 641097 Louver motor
641047 Motor stand (1) 641098 Power supply lead
641048 Motor stand (2) 641099 Wiring ring
641049 Motor 641100 Electrical box
641050 Motor fixing clamp 641101 Screw
641051 Screw 641102 Waterproof foam block
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Model No: AC-W17CL
Version 1.0
No. Description Code Model Specification
1 Temperature controller 641090 WK30A-LA 15~30
2 Selector 641091 XK30/5-04
3 Boat switch 641081
4 Louver motor 641097 TY-50C 5r/min
5 Panel assembly 641002
6 Fan motor capacitor 641094 CBB611A 8 F/450VAC
7 Compressor capacitor 641096 CBB65A-1K 50 F/450VAC
8 Centrifugal fan 641039
9 Propeller fan 641055
10 Eccentricity wheel 641086
11 Knob 641005
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Model No: AC-W17CL
Version 1.0
OPERATING STEP
(1) Removal of panel assembly
Take out the filter, and unscrew two screw left side
& right side of the groove. Then release the detent
between the panel and the frame. Now the panel
can be removed.
(2) Removal of frame
Unscrew the two screws at the lower back of the
frame and remove the frame by holding it while
grabbing the handle of the bottom plate and pulling
the latter out by force.
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Model No: AC-W17CL
Version 1.0
(3) Remove Vertical louvers.
(4) Removal of electrical box unit
Unscrew the three screws at the electrical box unit
remove it. Disconnect the wires and earthing
conductor.
(5) Removal of front cover plate
Unscrew the eight screws at the front cover plate
and remove it.
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Model No: AC-W17CL
Version 1.0
(6) Removal of back cover plate
Unscrew the four screws at the back cover plate
and remove it.
(7) Remove the bracing
(8) Removal of evaporator assembly
Unscrew the two screws at the wind-path partition
plate and remove it, then take out the evaporator
assembly from the wind-path partition plate.
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Model No: AC-W17CL
Version 1.0
(9) Removal of wind-path partition plate
The wind-path partition plate can be taken out by
removing the screw connecting the win-path
partition plate and base plate.
(10) Removal of centrifugal fan
Unscrew the bolt at the centrifugal fan and remove
it.
(11) Remove volute and water collecting plate.
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Model No: AC-W17CL
Version 1.0
(12) Removal of front partition plate
The front partition plate can be dismantled by
unscrewing the three screws fixing it.
(13) Removal of condenser
The condenser can be dismantled by unscrewing
the six screws fixing it.
(14) Removal of propeller fan
Unscrew the nut that fastens the propeller fan to
the motor shaft and dismantle the fan.
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Model No: AC-W17CL
Version 1.0
(15) Removal of the back partition plate. Unscrew
the screws holding the back partition plate and the
base plate together and remove the back partition
plate.
(16)Removal of fan motor assembly
The fan motor assembly can be taken out by
removing the four nuts connecting the motor to the
base plate.
(17) Disconnect the piping and the compressor.
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Model No: AC-W17CL
Version 1.0
THROUBLE SHOOTING
(1) Air conditioner doesn’t work
Symptom Possible cause Remedy
Power interruption Restore power supply
Fuse break Line-to-line
short-circuit
Check wiring according to the electric
diagram, eliminate short-circuit and replace
the fuse.
Power plug improperly connected or poor
connected
Correct poor connected and plug the power
plug properly into the socket
Air conditioner doesn’t work
Erroneous wiring Check wiring according to the electric
diagram and rewire correctly
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Model No: AC-W17CL
Version 1.0
(2) Both fan and compressor or either of them doesn’t work when operation mode
is set to “cooling” or “heating” or “ventilation”
Symptom Possible cause Remedy
Power failure Check the circuit in order
A too high set temperature (For cooling
operating) or too low set temperature (For
heating operating)
Lower the set temperature (For cooling
operating); Higher the set temperature (For
heating operating)
Thermostat fault Replace thermostat
Air conditioner in ventilation mode No problem
Loose connector Reconnect the connector
Compressor capacitor damaged Replace the capacitor
Compressor seized or winding open or
short-circuited. HV or LV side broken down
Replace the compressor
A too low or too high voltage Turn off the machine and turn it on again when
normal voltage is available
Compressor overload protector actuated Turn off the machine and turn it on again when
the compressor is cooled down. Provide unit
with protection against sunlight such as an
awning
The compressor does not work
Fault selector switch Replace the selector switch
Power failure Check the circuit in order
Loose connector Reconnect the connector
Motor capacitor damaged Replace the capacitor
Motor winding open or short-circuited. Replace the motor
The fan motor
does not work
Fault selector switch Replace the selector switch
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Model No: AC-W17CL
Version 1.0
3) Poor Cooling or no cool during Cooling Operation
Symptom Possible cause Remedy
Temperature controller damaged or
malfunctioning
Replace temperature controller
Circulating air flow decreased, heat exchanger
effect of evaporator reduced and hence cooling
effect also reduced when dust accumulates on the
air filter of air conditioner through extended
operation
Wash off dust on the filter and replace it
after it is dried
Dust accumulated on fins of the air conditioner,
resulting in insufficient cool air flow or poor heat
removal and hence reduced cooling effect.
Remove dust with a long-hair brush or
compressed air
Capillary in the cooling circulation system
clogged, causing malfunctioning of the system or
reduction in cooling effect.
Re-evacuate and fill refrigerant or replace
the capillary (and filter, etc.)
Piping in the system improperly welded or coppe
r
tubes damaged, resulting in leakage of refrigerant
Do patch welding after leak test and
replenish refrigerant.
Damaged capacitor of the fan or its poor contact,
or damaged motor of the fan or failure of power
line to the fan, resulting in failure to operate or
reduced speed of the fan and hence unavailability
of cool air or poor cooling effect.
Inspect the power line, switches,
temperature controller and terminal block,
etc. and replace the capacitor or motor.
Failure of compressor due to too high (or too low)
voltage or incorrect wiring of power line or
discontinuity of the circuit or any fault in
compressor itself (e.g. motor burned or seized or
valve plate damaged)
Furnish a voltage regulator or replace any
damaged part.
A too high cooling load Check for the expected cooling load
Poor cooling or total failure in cooling during cooling operation
A too high set temperature Adjust the set temperature
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