Vivax ACP-07CH21ZNLO, ACP-09CH25ZNLO, ACP-12CH35ZNLO Service Manual
ACP-07CH21ZNLO
ACP-09CH25ZNLO
ACP-12CH35ZNLO
Service
manual
ENG
RoHS
The following safety precautions must be taken when using your air
conditioner.
SAFETY PRECAUTIONS
1. Warning: Prior to repair, disconnect the power cord.
2. Use proper parts: use only exact replacement parts. (Also, we recommend replacing parts rather
than repairing them.)
3. Use the proper tools: use the proper tools and test equipment, and know how to use the m. Using
defective tools o r test equipment may cause problems later-intermittent contact, for example.
4. Power cord: prio r to repair, check the power cord and replace it if necessary.
5. Avoid using an extension cord, and avoid tapping into a power cord. This practice may result in
malfunction or fire.
6. After completing repairs and reassembly, check the insulation resistance.
Procedure: prior to applying power, measure the resistance between the power cord and the ground
terminal. The resistance must be greater than 30 megohms.
7. Make sure that the grounds are adequate.
8. Make sure that the installation conditions are satisfactory. Relocate the unit if necessary.
9. Keep children away from the unit while it is being repaired.
10. Be sure to clean the unit and its surrounding area.
1
2
Location of indoor unit
A place solid enough to bear the weight of the unit and not cause any shake.
Good ventilation, less dust, far from direct rain and sunshine.
Avoid places close to inflammable gas leakage.
Keep the air inlet and outlet at a far distance from the blockage.
Keep the height distance between the indoor and outdoor unit at most 5m.
Mount on the wall solid enough to bear the weight of the unit and not cause any shake.
Avoid direct sunshine.
A place easy for condensate drain and easy for connecting with the outdoor unit.
Keep a far distance away from the fluorescent lamp, it may influence the operation of remote controller.
Location of outdoor unit
Keep at least 1m away from the TV radio and other home appliances.
A place where the air discharged out of the outdoor unit or the operation noise will not annoy your
neighbours.
No blockage near the outdoor unit.
Avoid places close to inflammable gas leakage.
Selecting area for installation
INSTALLATION
Select an area for installation that is suitable to the customers needs.
It is harmful to the air conditioner if it is used in the following environments: greasy areas (including area
near machines). Salty area such as coastal areas, areas where sulfuric gas is present such as hot spring
areas. Contact your dealer for advice.
Caution:
front
right
back
Underside
Left-back
back
Notice: do not elevate the
drain hose.
The copper pipe can be led
from back, right, underside,
or left-back side.
Cover connecting pipe with
adiabatic material.
Sponge plastic adiabatic
material with the
thickness of 8mm.
While installing the pipeline on the
thin armor plate or on the wall of
metal mesh, you should use the
wooden board to clamp between
the wall and the pipeline, or wrap
up the pipeline with 7-8 layers of
insulating plastic tape.
left
100mm以上
above 300mm
above 500mm
above 300mm
above 500mm
above 500mm
INSTALLATION
Installation diagram of indoor unit and outdoor unit
Confirm the installation position by the mark of the indoor mounting plate.
or
or or
above 155mm
above 250mm
Above 20mm
above 105mm
Securing the mounting plate and drill on the wall
1
Secure the mounting plate
The mounting plate should be attached to the structural part of wall (post etc).
fasten string at the central hole
105mm or more
from sidewall
155mm or more
at least 250mm
from sidewall
Tapping screw
ST4×25(5)
mounting plate
NOTICE:
The holes at solid arrow position must be secured to avoid the shake of mounting plate.
When the expansion bolts are used, two holes ( 11×20 or 11×26 ) that the distance
between them is 450mm should be adopted.
Drill on the wall
Center of hole( 65mm)
Confirm the position of holes, and drill holes on the wall.
NOTICE:
Fasten string at the central hole
105mm or more
from sidewall
455mm or more
at least 250mm
from sidewall
Tapping screw
ST4×25(5)
mounting plate
plumb
40mm
at least 24mm
plumb
fasten string at the central hole
105mm
45mm
Center of hole( 65mm)
plumb
NOTICE:
The holes at solid arrow position must be secured to avoid the shake of mounting plate.
When the expansion bolts are used, two holes ( 11×20 or 11×26 ) that the distance
between them is 450mm should be adopted.
Confirm the position of holes, and drill holes on the wall.
INSTALLATION
440mm
fasten string at the central hole
at least250mm
230mm
440mm
at least 120mm
at least 120mm
Φ
90mm
plumb
Φ
90mm
Pipe hole
40mm
Pipe hole
plumb
fasten string at the central hole
at least 250mm
at least 180mm
at least 140mm
120mm
Center of hole( ) 65mm
Center of hole( ) 65mm
Wiring
2
Open the front grille;
Remove the screw from electrical box cover, pull the
electrical box cover away from the unit and set aside.
Remove the screw from fastener, pull the fastener
away from the unit and set aside.
Connect the cable.
Replace the fastener and electrical box cover.
Indoor unit terminal
Screw
Connecting cable
Diagram
INSTALLATION
The drain hose must be arranged beneath the copper pipe.
The drain hose must not be hunched or twisted.
While wrapping up the drain hose, do not pull it.
The drain hose through the room must be wrapped up by the
thermal insulation materials.
The copper pipe and the drain hose must be wrapped up by felt
strip. Adiabatic pad should be used at where the pipe contacts
the wall.
NOTE:
1
2
3
ROUTE OF PIPE
If pipe comes out of the right side of the indoor unit, cut part
“1” of the unit;
If pipe comes out of the lower-right side of the indoor unit, cut
part “2” of the unit;
If pipe comes out of the left side of the indoor unit, cut part “3”
of the unit.
Installation of the drain hose
3
Drain hose
gas pipe
Liquid pipe
felt
Adiabatic
underlay
drain hose
If pipe comes out of the left side of the indoor unit, the drain hose
must be refitted, otherwise water leakage may occur.
Refit methods: Interchange the position of drain hose and drain
rubber plug.
Clearance is not allowed after refit, it would lead to water leakage.
Drain rubber
plug
REFIT OF DRAIN HOSE
NOTE:
The appliance shall be installed in accordance with national wiring regulations.
The appliance must not be installed in the laundry.
The appliance must be installed 2.3m above the floor.
The appliance must be positioned so that the plug is accessible.
For some models whose cooling capacity are above 4600W (17000BTU/h),
an all-pole disconnection device which has at least 3mm separation distance in
all pole and a residual current device(RCD)with the rating of above 10mA shall
be incorporated in the fixed wiring according to the national rule.
Arrangement of the drain hose
To drain the condensate water easily, the drain hose should be declined downwards.
The following 5 arrangement methods are incorrect.
Decline
downward
(Fig. 1)
(Fig. 2)
(Fig. 3)
(Fig. 4)
Water
leak
Standing water
air
Dip
into water
hose
(Fig. 5)
50mm or less
above floor
Decline
downward
Water
leak
Water
leak
If you find the drain hose not long enough to connect with the indoor
unit, you can extend it with the hoses in the accessory box.
The drain hose through the room must be wrapped up with the special
adiabatic material.
Drain hose
Hose(ID 15cm)
PVC hard
INSTALLATION
5
Pipe Connection
DIAMETER OF PIPE
6.35mm ( 1/4”)
9.52mm ( 3/8”)
12.7mm ( 1/2”)
TORQUE(N·m)
13.7---17.6
34.3---41.2
49.0---56.4
Align the centre of joint in line with that of flare and tighten the nut of connecting pipe with wrench.
Put some seal oil to cover the joint and the flare.
15.88mm ( 5/8”)
73.0---78.0
The number of bent position of the pipe in the indoor unit should not exceed 10.
The number of bent position of the pipe in the indoor unit and the outdoor unit should not exceed 15.
The radius of bent position should be more than 10cm.
Evaporator
craft tube
Do not exhaust the inside air just by loosing the nut since there is the air of certain pressure
inside the tube of indoor unit. Please do not make extra effort for fear of damaging the flare.
Attention:
Please break the evaporator craft tube with pincers before connecting. After exhausting the inside air,
use the wrench to twist down the nut of connecting tube of the evaporator.
Installation of the indoor unit
Let pipe go through the wall hole and attach the indoor
unit to the mounting plate.(Press the rib of indoor unit
inside the hook of the mounting plate.)
the rib of indoor unit
the mounting plate
Bottom
Indoor unit
4
Wall sealing and Pipe fastening
Use putty to seal the wall hole.
Use clamp (pipe fastener) to secure the pipe at specified position.
Indoor unit
clamp
screw
get rid of unwanted part
seal with putty
secure the connecting
pipe with clamp
6
INSTALLATION
Connecting
cable
Outdoor unit terminal
1
Wiring
1 Remove the self-t apping screws (2 pcs)
on the maintenance board and take out the
maintenance board.
Maintenance
board
Terminal board
Fix the cable wire
with anchor cable
Piping cover
Please utilize ou tdoor pipe support when
the cable wire is led f rom the backside.
Outdoor pipe supp ort
(Outdoor pipe sup port is not required
when leading the cable wire from other places).
The cable wire can be led from the back hole
of the piping hole or e jecting hole.
Maintenance
board
Piping cover
E
j
ecting hole
Right wiring
Back wiring
Sponge
Piping cover
2 Loosen the self-t apping screws (2 pcs) on
the fixing clip to loosen the fixing clip.
5 Install the maintenance board. After the pipes
and cable wire are in stalled, please seal the
sponge block as per d rawing indication.
3 Loosen the fixing screw of the wire terminal
board, pass the power wire and signal wire
through the fixin g clip. Then firmly fix the
power wire and signal wire on the terminal
board with the fixing screw. (Earth wire
must be connected firmly.)
4 Tighten the self-tapping screw on the fixing clip.
Wiring For Above 6000W Model (Above 21000BTU/h Model)
Connecting
cable
Outdoor unit terminal
or
Installation diagram of indoor unit and outdoor unit
INSTALLATION
If the interconnection cord for power supply has to be replaced, please see the
following table for reference.
Notice:
If the signal wire has to be bought separately, choose electric wire above 0.75mm.
SERIES MODEL
IMPEDANCE
6800W (24000BTU/h)
5100W (18000BTU/h)
3200W (1000BTU/h)
3500W (12000BTU/h)
R22
series
≤0.042Ω
≤0.160Ω
≤0.132Ω
≤0.121Ω
2500W (9000BTU/h)
≤0.457Ω
MODEL
SPECS (Interconnection cord)
≤2700W(10000BTU/h)
≥1.0mm
3000W(11000BTU/h)
-4000W(15000BTU/h)
4500W(18000BTU/h)
-8000W(28000B TU/h)
≥2.5mm
1.5mm≥
2
2
2
2
WARNING:
Special cable must be used to connect indoor unit and outdoor unit. It should be ensured
that the terminals are not influenced by external force. Poor connection may cause fire.
The electric box cover must be mounted and secured in position, otherwise fire or electrical
shock may occur because of dust or moisture.
The connecting cables must be clipped together.
Please take the electric circuit diagram attached to the indoor/outdoor units as major
reference while installing.
The power wire and signal wire between the indoor/outdoor units must be connected
one by one as per corresponding number on the wiring terminal board.
All the models shall be connected with the mains which has system impedance limitations.
While installing the unit, please see the following table for impedance information or
consult with the supply authority.
The temperature of refrigerant circuit will be high, please keep the interconnection cable away
from the copper tube.
Burr
Oblique
Copper pipe
90
Roughness
Reamer
Burr
A
Outer diameter
A(mm)
2.0--2.5
3.0--3.5
3.5--4.0
D
6.35mm ( 1/4”)
9.52mm ( 3/8”)
12.7mm ( 1/2”)
15.88mm(5/8 )”
4.0--4.5
Air exhausting
4
Installation of the drain joint(only for heat pump type)
Bottom
Double-channel
drain joint
Drain hose
Joint of the connecting pipe
Put some seal oil to cover the joint and the flare.
Align the centre of joint in line with that of flare and tighten the nut of connecting pipe
with wrench. ( Adjust the torque by the same method of connecting pipe for indoor unit.)
Insert the outdoor double-channel drain joint in one of the
bottom holes of the suitable size then connect drain hose
and joint together.
2
3
gas shut-off
valve
liquid shut-off valve
service port
gas connecting
pipe
liquid connecting pipe
valve nuts
service port cap
allen wrench
Screw down the cap of both gas shut-off valve and
liquid shut-off valve as well as the nut of service port.
Use Allen wrench to turn the valve cork of liquid side
at 90 counter-clockwise, and close it after 10 seconds.
Use soapy water to check the gas leakage especially
at all joint. If there is no gas leakage, please turn the
valve cork of liquid side at 90 counter-clockwise again.
Press the cork of service port at gas shut-off valve, 10
seconds later, when you see foggy gas discharged, that
means inner air is exhausted out.
Use Allen wrench to turn the valve cork of both liquid
shut-off valve and gas shut-off valve counter-clockwise
until they are completely open and then replace the
valve caps and tighten them.
Process of flared tube
5
Use the pipe cutter to cut off the broken part of flare.
Remove burrs at the cut of the flare.
Insert a nut into the connecting pipe and do flaring
with specified flaring tools, reamers for example.
Check the quality of flaring technique.
INSTALLATION
Remove burrs at the cut of the flare.
Screw the gas shut-off valve to close, connect
charging hose(low pressure) to the service valve
and then open gas shut-off valve again.
Connect the refrigerant bottle to the charging hose
and then convert it.
Disconnect the manifold gauge after turning off the
shut-off valve, and then open gas shut-off valve again.
Exhaust the air as the above-mentioned method.
Tighten nuts and caps of each valve.
Fill in liquid refrigerant as the above table.
Service port
Manifold gauge
Low pressure
valve
High pressure
valve
Pressure meter
Charging line
Adding refrigerant
If the connecting pipe is longer than 7 metres, add refrigerant as needed. (Cool only type) added
amount A=(Lm-7m)×15g/m ; (Heat pump type)added amount A= (Lm-7m) ×50g/m. ( A: amount
of added refrigerant, L: the length of connecting pipe)
6
7
0
0
8
15
50
9
30
100
10
45
150
The length of connecting pipe (m)
(Cool only type)added amount (g)
(Heat pump type)added amount (g)
INSTALLATION
Set the unit to cool operation mode.
Stop operation of the air conditioner.
Relocation of the air conditioner.
Refer to this procedure when the unit is relocated.
1. Carry out the pump down procedure.
2. Remove the power cord.
3. Disconnect the assembly cable from the indoor and outdoor units.
4. Remove the flare nut connecting the indoor unit and the pipe.
At this time, cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign
material entering.
5. Disconnect the pipe connected to the outdoor unit.
6. Make sure you do not bend the connection pipes in the middle and store together with the cables.
7. Move the indoor and outdoor units to a new location.
8. Remove the mounting plate for the indoor unit and move it to a new location.
7
Operation test
8
INSTALLATION
Before test operation, wiring safety inspection must be carried out carefully again.
1. Emergency switch operation: Every press of emergency switch, the
air conditioner runs as in the following order:
Cool
only type:
Cool
Shut off
Heat pump type: Cool
Heat
Shut off
2. Remote controller operation: If the indoor unit sounds like Di, Di when pressing I/O button,
that indicates the air conditioner is under the operation of remote controller. After that, press
every button to test their functions.
3. operation: Check switch Open the front grille and press the check button. Switch on the power
source and then the operation test is activated. If the indicator lamps light up at first and then
go out in succession or the LED window of the indoor unit illuminates at first and then goes out,
the system is under normal operation. If one of the indicator lamps is flashing at all times, or
failure codes are displayed on the LED window of the indoor unit, the system has something
wrong and please check malfunction immediately.
Check valve
Capillary tube
Capillary tube
Liquid side
2-way valve
Gas side
3-way valve
Accumulator
Compressor
4-way valve
Cross fan
Heat
exchanger
(Condenser)
Propeller fan
Heat
exchanger
(Evaporator)
INDOOR UNIT OUTDOOR UNIT
Cooling
Heating
Gas leak check point
BLOCK DIAGRAM
Refrigerant Cycle Block Diagram
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