Cooper & Hunter CH09UFC230VI Service manual

MULTI
DUCTLESS INVERTER
HEAT PUMP
OWNER'S AND
INSTALLATION MANUAL
FLOOR AND CEILING TYPE
INDOOR UNIT
Models:
CH09UFC230VI
CH12UFC230VI
CH18UFC230VI
CH24UFC230VI

User Notice
◆When installing, the entire capacity of the cooperating indoor unit should be not larger than
150% of outdoor unit, otherwise, it will cause the shortage of cooling (heating) capacity.
◆The power supply of the entire unit must be the power supply of outdoor unit. And disconnect
the main power of outdoor unit before cleaning.
◆In order to start up the unit successfully, the main power switch should be opened 8 hours
before the operation.
◆After receiving the turn off signal, every indoor unit will continue to work for 20-70sec to
make good use of the rest cool air or the rest heat air in the heat exchanger, which will prepare for
the next operation. And this is normal.
◆ When the selected operating mode of the indoor unit is conicted to the operating mode of
the outdoor unit, 5 sec later, the malfunction hint will be shown on the indoor unit or wired controller,
then the indoor unit will stop. At this time, change the operating mode of the indoor unit to the one
that would not conict with the outdoor operating mode to make the operation normal. The HEAT
mode conicts with each of the COOL mode, DRY mode and FAN mode, while the COOL mode,
DRY mode and FAN mode are compatible between each other.
◆The appliance shall not be installed in the laundry. The appliance shall not be used by
children without supervisor.
◆ Power supply uctuating range (+/-10%, +/-1Hz) .
◆ Humidity range: 30%~95%.
◆ Main switch provided by end user: main switch handle should be black or gray, it can be
locked in “OFF” position with padlock.
◆ The main disconnection device should be installed at a height of 1.97-5.6ft (0.6~1.7m).
Over current protection is required(UL 1995,CSA C22.2).
◆ The cooling range of the unit is the outdoor ambient temp 23-118OF(-5~48℃) DB, the
heating range of the unit (only for the heat pump type unit) is the outdoor ambient temp.
5-81OF(-15~27℃) DB.
◆This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
Thank you for selecting C&H air conditioner. Before use, please read this manual
carefully and keep it properly for furthur reference.

Contents
1 Safety Precautions .......................................................................................... 1
2 Installation Precautions and Location Choosing ............................................. 2
2.1 Installation Precautions......................................................................................... 2
2.2 Location Choosing ................................................................................................ 2
2.3 Imappropriate Location ......................................................................................... 2
3 Installation of Floor and Ceiling Type Indoor Unit............................................ 3
3.1 Space Dimension for Unit Installation ................................................................... 3
3.2 Important Notice.................................................................................................... 3
3.3 Installation Description.......................................................................................... 3
3.4 Electrical Wiring .................................................................................................... 6
3.5 Drainpipe Installation ............................................................................................ 7
3.6 Install the Connection Pipes ................................................................................. 8
4 Part Names of Floor and Ceiling Type Indoor Unit........................................ 10
5 Working Temperature Range......................................................................... 11
6 Maintenance Method..................................................................................... 12
6.1 Cleaning the Air Filters........................................................................................ 12
6.2 Cleaning the Unit ................................................................................................ 12
6.3 At the Start of the Season ................................................................................... 12
6.4 During the off Season ......................................................................................... 12
7 Operating Instructions ................................................................................... 13
8 Malfunction Analysis ...................................................................................... 15
8.1 Service Center ..................................................................................................... 15
8.2 After-sales Service ............................................................................................... 16

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1 Safety Precautions
Please read this manual carefully before using this unit. Operate it correctly according to the
guide in this manual.
Please pay special attention to the indicating meaning of these two marks:
Warning! This mark means that the unit may cause property damage, personal injury or
loss of life if the operation is incorrect.
Caution! This mark means that the unit may cause minor or moderate property damage or
personal injury.
Warning!
◆
The unit should be earthed reliably. Do not connect the earth line to the gas pipe, water pipe,
drainage pipe or other unsafe places in potential.
◆Air conditioner must use special power supply circuit and switches for creepage protect and
air with enough capacity should be installed in the circuit.
◆ Ensure that the connecting of power cord is reliable, otherwise, electric shock or re may
happen.
◆ Do not cut off the power supply when the unit is running, otherwise the lifetime of the unit will
be shortened.
◆ Do not damage wires or use the wires that are not recommended, otherwise, electric shock
or re may happen.
◆Please don’t operate the unit with wet hands, or electric shock may happen.
◆ Do not put a nger, a rod or other objects into the air outlet or inlet to avoid of damage or
injury.
◆Cut down the main power supply immediately if any abnormality happens (such as smell of
re etc.). Contact with the service center and consult the qualied technician.
◆ Do not repair or adjust the air conditioner by yourself. Please contact the service center or
Gree technicians for help.
◆ Do not use the fuse with unsuitable capacity or iron thread instead of fuse, otherwise, it will
cause malfunction or re.
◆ Switch off the power supply of the unit before cleaning the air conditioner, otherwise, electric
shock or damage may happen.
◆Please turn off the main power of the whole unit before cleaning the conditioner, otherwise
electric shock or harm may be happened.
◆Chemical sprayer should be placed 3.28ft (1m)or more away from the unit,
otherwise fire or explosion may happen.
◆ Do not block air inlets or outlets. Impaired air ow may result in insufcient performance or
trouble.

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2 Installation Precautions and Location Choosing
2.1 Installation Precautions
The installation of air conditioner must be conform to national and local safety
laws.
Installation quality will directly affect the normal use of air conditioner. Do not
attempt to install the air conditioner by yourself. Please contact your dealer after buying
this machine. Professional installation workers will provide installation and test services
according to installation manual.
Do not connect to power until all installation work is completed.
2.2 Location Choosing
＊Such a place where cool air can be distributed throughout the room.
＊Such a place where condensate water could be easily drained out.
＊Such a place that can handle the weight of indoor unit.
＊Such a place, which is easy for maintenance.
＊Such a place where is easy to get connected with the outdoor unit.
＊Such a place where is 3.28ft (1m) or more away from other electric appliances such as
television, audio device, etc.
＊Avoid a location where there is heat source, high humidity or inammable gas.
＊Do not use the unit in the moist surroundings, such as a laundry, a bath, a shower or a
swimming pool.
＊Be sure that the installation conforms to the installation drawings.
2.3 Imappropriate Location
＊Where there is too much of oil.
＊Where it is acid base area.
＊Where there is irregular electrical supply.

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3 Installation of Floor and Ceiling Type Indoor Unit
3.1 Space Dimension for Unit Installation
The space around the unit is adequate for ventilation. (Refer to Fig.1)
>24
>40
>12
>24
>59
>12
>24
>24 >59
>8
>91
POWER
RUN
TIMER
Fig.1, distance in inches
3.2 Important Notice
(1). The unit must be installed by the professional personnel according to this install instruction
to ensure the well use.
Please contact the local C&H special nominated repair department before installation. Any
malfunction caused by the unit that is installed by the department that is not special nominated by
Gree would not deal with on time by the inconvenience of the business contact.
(2). It should be done by professional personnel when the air conditioner unit is moved to other
place.
3.3 Installation Description
＊Ceiling type
＊Floor type
These two types of units have similar installing procedure as follows:
(1). Determine the mounting position on ceiling or wall by using paper pattern to indicate indoor
frame. Mark the pattern and pull out the paper pattern.(Refer to Fig.2)
(2). Remove the return grill, the side panel and the hanger bracket from the indoor unit as per
procedure bellow.
＊Press the xing knob of the air intake grills, the grilles will be opened wider and then pull
them out from the indoor.
＊Loosen the side panel xing screw and remove the side panel. (Refer to Fig.3)
＊Loosen two hanger bracket setting bolts (M8) on each side for less than 0.39in (10mm).
Remove two hanger bracket xing bolts (M6) on the rear side. Detach the hanger bracker by
pulling it backward

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(Refer to Fig.5).
Installation
paper plank
Side panel fixing screw(M4)
Fig.2 Fig.3
(3). Set the suspension bolt. (Use W3/8 or M10 size suspension bolts)
＊Adjust the distance from the unit to the ceiling slab beforehand. (Refer to Fig.4)
(4). Fix the hanger bracket to the suspension bolt.
Warning!
＊Make sure that extended suspension bolt from the ceiling stays inside the appointed
position. Readjust the hanger bracket when it is out of the appointed position. (Refer to Fig.6)
＊Suspension bolt is xed in the cap of indoor unit. Never remove the cap.
(5). Lift the unit and slide forward unit in place. (Refer to Fig.7)
(6). Screw tightly both hanger bracket-setting bolts (M8). (Refer to Fig.5)
(7). Screw tightly both hanger bracket-fixing bolts (M6) to prevent the displacement of the
indoor unit. (Refer to Fig.5)
(8). Adjust the height so that rear side of the drainpipe slightly inclines to improve drainage.
Caution!
＊Adjust the height by rotating the nut with a spanner.
＊Insert the spanner into the hanger bracket through the interspace. (Refer to Fig.8)
In case of hanging
It is possible to install hanger brackets by not removing the brackets from the indoor unit. (Refer
to Fig.9)
Only the specied accessories and parts for installation work could be used.

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Celling
1 3/5” or less
Hanger bracket
Suspension bolt
Celling slab
BOLT POSITION INWARD
Hanger bracket
Fig.4 Fig.5
Hanger bracket
setting bolt(M8)
Hanger bracket
fixing bolt(M6)
Hanger bracket
Fig.6Fig.7
Fig.9Fig.8
When installing the indoor unit, you can refer the paper pattern for installation. Make sure that the
drainage side must be 0.39in (10mm)lower than the other side in order to drain the condensate
water easily.
AB
C
D
H
Unit: in(mm)

Caution:
The power of every indoor unit should be connected in outdoor unit.
①.
Open front panel.
②.
Remove the electrical box cover.
③.
Route the power connection cord from the back of the indoor unit and pull it toward the front
through the wiring hole upward.
④.
Put the 4-core cable through the hole of the chassis and the bottom of the appliance
upward, and then connect the power line and the communication line from the outdoor
unit to the corresponding terminals N(1), 2, 3 , and grounding terminal of the indoor unit.
Wiring shall be done properly as per the wiring diagram. (Note: Be sure the wring terminals
A/B/C/D and piping joints A/B/C/D of the indoor unit match with that of the outdoor unit
respectively).
⑤.
Reassemble the electrical box cover.
⑥.
Reinstall the front panel.
⑦.
Do not use copper tube at interconnection part as the temperature of refrigerant circuit is
high.
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Model A B H CD
CH09UFC230VI
CH12UFC230VI
CH18UFC230VI
CH24UFC230VI
48in
(1220mm)
9in
(225mm)
28in
(700mm)
46in
(1158mm)
11in
(280mm)
3.4 Electrical Wiring
INDOOR UNIT C INDOOR UNIT B INDOOR UNIT A
XT XT XT2
OUTDOOR UNIT
NL
POWER
INDOOR UNIT D
CH36MVCT230VO

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POWER
INDOOR UNIT AINDOOR UNIT BINDOOR UNIT CINDOOR UNIT D
OUTDOOR UNI
T
INDOOR UNIT E
XT2
XT1
XT3
XT4
XT5
XT6
N
L
G
G
G
G
G
Caution!
① .
The incorrect of wiring connection would lead malfunction of some of the electric parts.
② .
Be sure to leave some space between the connecting end and the clamp end after the
wiring is xed.
③ .
The installing operation should comform to national wiring regulations.
3.5 Drainpipe Installation
Make sure the drain ows out
(1). Drain piping.
CH42MVCT230VO