Page 1
KAROLINA
HIGH-WALL DUCTLESS
AIR CONDITIONING &
HEATING SYSTEM
INSTALLATION
Models:
CH09KRL230VI/CH09KRL230VO (230V)
CH1
2
KRL230VI/CH12KRL230VO (230V)
CH1
8
KRL230VI/CH18KRL230VO (230V)
CH
24
KRL230VI/CH24KRL230VO (230V)
MANUAL
Page 2
CH09KRL230VI/CH09KRL230VO
System Includes: CH09KRL230VI, CH09KRL230VO
CH12KRL230VI/CH12KRL230VO
System Includes: CH12KRL230VI, CH12KRL230VO
CH18KRL230VI/CH18KRL230VO
System Includes: CH18KRL230VI, CH18KRL230VO
CH24KRL230VI/CH24KRL230VO
System Includes: CH24KRL230VI, CH24KRL230VO
Page 3
Content
Installation Notice
Precautions ...........................................................................................................1
System Requirements Piping Requirements . . .........................................................9
Installation dimension diagram . . .........................................................................10
Tools for installation . ...........................................................................................11
Selection of installation location .. .......................................................................11
Requirements for electric connection . .................................................................12
Installation
Installation of indoor unit. . ...................................................................................13
Installation of outdoor unit . ................................................................................18
Vacuum pumping ...............................................................................................21
Leakage detection ..............................................................................................21
Check after installation .......................................................................................22
Test and operation
Test operation . ..................................................................................................22
Attachment
Configuration of connection pipe . ....................................................................23
Pipe expanding method .....................................................................................25
Start-Up and troubleshooting . ............................................................................26
Page 4
Explanation of Symbols
DANGER
WARNING
CAUTION
N OTIC E
Indicates a hazardous situation that, if not avoided, will
result in death or serious injury.
Indicates a hazardous situation that, if not avoided, could
result in death or serious injury.
Indicates a hazardous situation that, if not avoided, may
result in minor or moderate injury.
Indicates important but not hazard-related information,
used to indicate risk of property damage.
Indicates a hazard that would be assigned a signal word
WARNING or CAUTION.
Page 5
Precautions
WARNING
Operation and Maintenance
This appliance can be used by children aged from 8
years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe
way and understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by
children without supervision.
Do not connect air conditioner to multi-purpose socket.
Otherwise, it may cause fire hazard.
Do disconnect power supply when cleaning air
conditioner. Otherwise, it may cause electric shock.
If the supply cord is damaged, it must be replaced by
the manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
Do not wash the air conditioner with water to avoid
electric shock.
Do not spray water on indoor unit. It may cause electric
shock or malfunction.
After removing the filter, do not touch fins to avoid injury.
Do not use fire or hair dryer to dry the filter to avoid
deformation or fire hazard.
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Page 6
Precautions
WARNING
Maintenance must be performed by qualified
professionals. Otherwise, it may cause personal injury
or damage.
Do not repair air conditioner by yourself. It may cause
electric shock or damage. Please contact dealer when
you need to repair air conditioner.
Do not extend fingers or objects into air inlet or air
outlet. It may cause personal injury or damage.
Do not block air outlet or air inlet. It may cause
malfunction.
Do not spill water on the remote controller, otherwise the
remote controller may be broken.
When below phenomenon occurs, please turn off air
conditioner and disconnect power immediately, and then
contact the dealer or qualified professionals for service.
● Power cord is overheating or damaged.
● There’s abnormal sound during operation.
● Circuit break trips off frequently.
● Air conditioner gives off burning smell.
● Indoor unit is leaking.
If the air conditioner operates under abnormal conditions,
it may cause malfunction, electric shock or fire hazard.
When turning on or turning off the unit by emergency
operation switch, please press this switch with an insulating
object other than metal.
Do not step on top panel of outdoor unit, or put heavy
objects. It may cause damage or personal injury.
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Precautions
WARNING
Attachment
Installation must be performed by qualified professionals.
Otherwise, it may cause personal injury or damage.
Must follow the electric safety regulations when installing
the unit.
According to the local safety regulations, use qualified
power supply circuit and circuit break.
Do install the circuit break. If not, it may cause malfunction.
An all-pole disconnection switch having a contact separation
of at least 3mm in all poles should be connected in fixed
wiring.
Including an circuit break with suitable capacity, please
note
magnet buckle
the circuit-short and
the following table.Air switch should be included
and heating buckle function, it can protect
overload.
Air Conditioner should be properly grounded. Incorrect
grounding may cause electric shock.
Don't use unqualified power cord.
Make sure the power supply matches with the
requirement of air conditioner. Unstable power supply or
incorrect wiring or malfunction. Please install proper power
supply cables before using the air conditioner.
Properly connect the live wire, neutral wire and
grounding wire of power socket.
Be sure to cut off the power supply before proceeding
any work related to electricity and safety.
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Page 8
Precautions
WARNING
Do not put through the power before finishing installation.
If the supply cord is damaged, it must be replaced by
the manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
The temperature of refrigerant circuit will be high, please
keep the interconnection cable away from the copper
tube.
The appliance shall be installed in accordance with
national wiring regulations.
Installation must be performed in accordance with the
requirement of NEC and CEC by authorized personnel
only.
The air conditioner is the first class electric appliance. It
must be properly grounding with specialized grounding
device by a professional. Please make sure it is always
grounded effectively, otherwise it may cause electric shock.
The yellow-green wire in air conditioner is grounding
wire, which can't be used for other purposes.
The grounding resistance should comply with national
electric safety regulations.
The appliance must be positioned so that the plug is
accessible.
All wires of indoor unit and outdoor unit should be
connected by a professional.
If the length of power connection wire is insufficient, please
contact the supplier for a new one. Avoid extending the
wire by yourself.
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Page 9
Precautions
WARNING
For the air conditioner with plug, the plug should be
reachable after finishing installation.
For the air conditioner without plug, an circuit break
must be installed in the line.
If you need to relocate the air conditioner to another
place, only the qualified person can perform the work.
Otherwise, it may cause personal injury or damage.
Select a location which is out of reach for children and
far away from animals or plants. If it is unavoidable,
please add the fence for safety purpose.
The indoor unit should be installed close to the wall.
Instructions for installation and use of this product are
provided by the manufacturer.
FCC WARNING
WARNING: Changes or modifications to this unit not
expressly approved by the party responsible for
compliance could void the user’s authority to operate
the equipment.
FCC STATEMENT
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions :
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Page 10
Precautions
FCC STATEMENT
(1) this device may not cause harmful interference,
and (2) this device must accept any interference
received,including interference that may cause
undesired operation.
NOTE: This equipment has been tested and found to
comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against
harmful interference in a residential installation. This
equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in
accordance with the instructions,may cause harmful
interference to radio communications.
However, there is no guarantee that interference will
not occur in a particular installation. If this equipment
does cause harmful interference to radio or television
reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following
measures:
● Reorient or relocate the receiving antenna.
● Increase the separation between the equipment and
receiver.
● Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
● Consult the dealer or an experienced radio/TV
technician for help.
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Page 11
Precautions
IC STATEMENT
This device complies with Industry Canada licenceexempt RSS standard(s). Operation is subject to the
following two conditions: (1) this device may not cause
interference, and (2) this device must accept any
interference, including interference that may cause
undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie
Canada applicables aux appareils radio exempts de
licence. L'exploitation est autorisée aux deux conditions
suivantes : (1) l'appareil ne doit pas produire de
brouillage, et (2) l'utilisateur de l'appareil doit accepter
tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le
fonctionnement.
This equipment complies with FCC’s and IC’s RF
radiation exposure limits set forth for an uncontrolled
environment. The antenna(s) used for this transmitter
must be installed and operated to provide a separation
distance of at least 7.9in from all persons and must
not be collocated or operating in conjunction with any
other antenna or transmitter. Installers must ensure that
20cm separation distance will be maintained between
the device (excluding its handset) and users.
Cet appareil est conforme aux limites d’exposition au
rayonnement RF stipulées par la FCC et l’IC pour une
utilisation dans un environnement non contrôlé. Les
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Precautions
IC STATEMENT
antennes utilisées pour cet émetteur doivent être
installées et doivent fonctionner à au moins 7.9in
de
distance des utilisateurs et ne doivent pas être placées
près d’autres antennes ou émetteurs ou fonctionner
avec ceux-ci. Les installateurs doivent s’assurer qu’une
distance de 20 cm sépare l’appareil (à l’exception du
combiné) des utilisateurs.
Working temperature range
Indoor side DB/WB
Maximum cooling 80/66.9(26.7/19.4) 115/75(46.1/23.9)
Maximum heating 80/-(26.7/-) 75/64.9(23.9/18.3)
NOTICE:
● The operating temperature range (outdoor temperature) for cooling only unit is
-0.4°F(-18°C)~115°F(46.1°C)；for heat pump unit is -4°F(-20°C)~115°F(46.1°C)
* Cooper&Hunter is constantly working to improve their products, so the information in this manual is
subject to change without prior notice.
(°F/°C)
Outdoor side DB/WB
(°F/°C)
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Page 13
System Requirements
Piping Requirements
PIPE SIZE in (mm)
Unit Size
(BtuH)
9,000 208/230v - 1ph 60hz 1/4 (6) 3/8 (9.5)
12,000 208/230v - 1ph 60hz 1/4 (6) 3/8 (9.5)
18,000 208/230v - 1ph 60hz 1/4 (6) 1/2 (12)
24,000 208/230v - 1ph 60hz 1/4 (6) 1/2 (12)
REFRIGERANT LINE LENGTHS ft (m)
Unit Size
(BtuH) Length Length (ID over OD)
9,000 208/230v - 1ph 60hz 10 (3) 50 (15) 33 (10)
12,000 208/230v - 1ph 60hz 10 (3) 50 (15) 33 (10)
18,000 208/230v - 1ph 60hz 10 (3) 82 (25) 33 (10)
24,000 208/230v - 1ph 60hz 10 (3) 82 (25) 33 (10)
Notes: Insulate both refrigerant lines, separately.
Voltage
REFRIGERANT CHARGE
Unit Size
(BtuH) Type Charge oz (kg)* Charge oz/ft (g/m)
Voltage
Vol tage
Min Line Max Line Max Elevation
Refrigerant Factory System Additional
Liquid Line Suction/Gas Line
9,000 208/230v - 1ph 60hz R410A 26.1 (0.74) 0.2 (20)
12,000 208/230v - 1ph 60hz R410A 35.3 (1.0) 0.2 (20)
18,000 208/230v - 1ph 60hz R410A 45.9 (1.3) 0.2 (20)
24,000 208/230v - 1ph 60hz R410A 54.7 (1.6) 0.2 (20)
*Precharge amount for up to 25-ft of refrigerant pipe.
ELECTRICAL REQUIREMENTS
Unit Size
(BtuH) Amps (MCA) Protection (MOP) Wire Size (AWG)**
9,000 208/230v - 1ph 60hz 10
12,000 208/230v - 1ph 60hz 10
18,000 208/230v - 1ph 60hz 15 25
24,000 208/230v - 1ph 60hz
**Main power wire from electrical panel to outdoor unit.
Notes: 1) System must be on a single dedicated circuit.
2) Main power is supplied to the outdoor unit.
3) Use table above to size over current protection.
4) Follow all local building codes and NEC (National Electrical Code) regulations.
Recommended cable - 16/4 AWG stranded bare copper conductorsTHHN 600V unshielded wire
Note: Use shield cable if installation is in close proximity of RF and EMI transmitting devices.
Condensate Drain Size: 5/8-in OD 7/16-in ID
prevent sweating and possible water damage.
Voltage
Min Circuit Max Overcurrent Main Power
1
6
1
6
1
7
Note: Insulate condensate drain hose to
2
5
Interconnecting Cable:
9
1
6
1
6
1
4
1
2
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Installation dimension diagram
in (0,15m)
6
Space to the ceiling
6in (0,15m)
Space to the wall
Space to the wall
6in (0,15m)
12in (0,3m)
Space to the wall
(3m)
115in
Space to the obstruction
Space to the
obstruction
Space to the obstruction
20in (0,5m)
12in
(0,3m)
m)
5
ft (2,
.2
8
78.7in (2m)
Space to the obstruction
10
Drainage pipe
19.7in (0,5m)
Space to the
obstruction
Page 15
Tools for installation
1 Level meter 2 Screw driver 3 Impact drill
4 Drill head 5 Pipe expander 6 Torque wrench
7 Open-end wrench 8 Pipe cutter 9 Leakage detector
10 Vacuum pump 11 Pressure meter 12 Universal meter
13 Inner hexagon spanner 14 Measuring tape
Note:
● Please contact the local agent for installation.
Selection of installation location
Basic requirement
Installing the unit in the following places maycause malfunction. If it is unavoidable, please consult the local
dealer:
1.The place with strong heat sources,
or volatile objects spread in the air.
2.The place with high-frequency
devices (such as welding machine,
medical equipment).
3.The place near coast area.
4.
The place with oil or fumes in the air.
5.The place with sulfureted gas.
6.Other places with special circums tances.
7.The appliance shall not be install ed in the laundry.
,
Indoor unit
1. There should be no obstruction near air
inlet and air outlet.
2. Select a location where the condensat ion water can be dispersed easily and
won't affect other people.
3. Select a location which is convenient to
connect the outdoor unit and near the
power socket.
4. Select a location which is out of reach
for children.
5.
The location should be able to withstand
the weight of indoor unit and won't incr ease noise and vibration.
6.
The appliance must be installed 98,4in
(2.5m) above floor.
7. Don't install the indoor unit right above
the electric appliance.
8. Please try your best to keep way from
fluorescent lamp.
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Requirements for electric connection
Safety precaution
1. Must follow the electric safety regulations when installing the unit.
air switch.
3. Make sure the power supply matches with the requirement of air conditioner.
Unstable power supply or incorrect wiring or malfunction. Please install proper
power supply cables before using the air conditioner.
4. Properly connect the live wire, neutral wire and grounding wire of power socket.
5. Be sure to cut off the power supply before proceeding any work related to
electricity and safety.
7. If the supply cord is damaged, it must be replaced by the manufacturer, its
8. The temperature of refrigerant circuit will be high, please keep the interconnec tion cable away from the copper tube.
9. The appliance shall be installed in accordance with national wiring regulations.
Grounding requirement
grounding with specialized grounding device by a professional. Please make
sure it is always grounded effectively, otherwise it may cause electric shock.
2. The yellow-green wire in air conditioner is grounding wire, which can't be used
for other purposes.
3. The grounding resistance should comply with national electric safety regulations.
4. The appliance must be positioned so that the plug is accessible.
5. An all-pole disconnection switch having a contact separation of at least 3mm in
6. Including an air switch with suitable capacity, please note the following table. Air
switch should be included magnet buckle and heating buckle function, it can
protect the circuit-short and overload. (Caution: please do not use the fuse only
for protect the circuit)
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Page 17
Installation of indoor unit
Step one: choosing installation location
rm it with the client.
Step two: install wall-mounting frame
1. Hang the wall-mounting frame on the wall; adjust it in horizontal position with the
expansion particles in the holes.
3. Fix the wall-mounting frame on the wall with tapping screws (ST4.2X25TA) and
Step three: open piping hole
1. Choose the position of piping hole according to the direction of outlet pipe. The
position of piping hole should be a little lower than the wall-mounted frame,
shown as below.
09、12K:
Wall
Mark in the middle of it
Space
to the
wall
5,9in
(0,15m)
above
Left
1
Φ2 (55mm)
4
Rear piping hole
Level meter
Wall
Space
to the
wall
5,9in
(0,15m)
above
Right
1
Φ2 (55mm)
4
Rear piping hole
18K
：
Wall
Space
to the
wall
5,9in
(0,15m)
above
Left
Φ
2.6(
70mm
Rear piping hole
Mark in the middle of it
)
Level meter
Space
to the
wall
5,9in
(0,15m)
above
Right
Φ
2.6(
Rear piping hole
Wall
70mm
)
24K:
Wall
Space
to the
wall
5,9in
(0,15m)
above
Left
Φ
2.6(
70mm
)
Rear piping hole
Mark in the middle of it
Level meter
Space
to the
wall
5,9in
(0,15m)
above
Right
Φ
2.6(
Rear piping hole
Wall
70mm
)
2. Open a piping hole with the diameter of Φ55/Φ70 on the selected outlet pipe
position. In order to drain smoothly, slant the piping hole on the wall slightly
downward to the outdoor side with the gradient of 5-10°.
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Installation of indoor unit
Note:
● Pay attention to dust prevention and
take relevant safety measures when
opening the hole.
● The plastic expansion particles are
not provided and should be bought
locally.
Step four: outlet pipe
1. The pipe can be led out in the
direction of right, rear right, left or
rear left.
left
rear right
right
rear left
Indoor
5-10
outdoor
1
4
Φ2 (55)/
Φ
2.6(
70mm
2. When select leading out the pipe
from left or right, please cut off the
corresponding hole on the bottom
case.
left
right
cut off
the hole
)
1. Aim the pipe joint at the corresponding
bellmouth.
union nutpipe joint
pipe
2. Pretightening the union nut with hand.
3. Adjust the torque force by referring to the following sheet. Place the open-end
wrench on the pipe joint and place the torque wrench on the union nut. Tighten
the union nut with torque wrench.
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Page 19
Installation of indoor unit
Tightening torque (N.m)
15~20
30~40
45~55
60~65
70~75
torque wrench
indoor pipe
open-end
wrench
union nut
pipe
Hex nut diameter
1
Φ
4
3
Φ
8
1
Φ
2
5
Φ
8
3
Φ
4
4. Wrap the indoor pipe and joint of con nection pipe with insulating pipe, and
then wrap it with tape.
insulating pipe
Note:
If a 18k indoor unit is to be connected with Free Match outdoor unit, a transitional
pipe joint (provided) should be added at the pipe joint of indoor unit evaporator
assy as the pipe joint of evaporator assy adopts pipe diameter of Φ16. Please
refer to step 1-4 during installation.
Step six: install drain hose
1. Connect the drain hose to the outlet pipe of
indoor unit.
2. Bind the joint with tape.
outlet pipe
drain hose
tape
Note:
● Add insulating pipe in the indoor
drain hose in order to prevent
condensation.
● The plastic expansion particles are
not provided.
Step seven: connect wire of indoor unit
1. Open the panel, remove the screw
on the wiring cover and then take
down the cover.
15
panel
outlet
pipe
drain hose
insulating pipe
screw
wiring cover
drain hose
Page 20
Installation of indoor unit
2. Make the power connection wire go
through the cable-cross hole at the back
of indoor unit and then pull it out from
the front side.
3. Remove the wire clip; connect the powe
connection wire to the wiring terminal
according to the color; tighten the screw
with wire clip.
cable-cross
hole
power connection
wire
18K (230V):
r
For some models with power
18K BTU wall-mounted type
L
1 S
N(1) 2
Outdoor unit connection
G
L
2
L1 L2 G
3
GND
Wiring cover
09K,12K: (230V)
N(1) 2
N(1)
L1
3
3
2
L
2
Outdoor unit connection
G
GND
GND
G
18K, 24K: (230V)
N(1) 2
N(1) 2
Outdoor unit connection
3
G
3
GND
GND
4. Put wiring cover back and then tighten the screw.
5. Close the panel.
Notice before installation
1. How to install the over line pipe
(According to the direction as show.)
Screw
wire pipe
Fixed nut
Note:
● All wires of indoor unit and outdoor unit should be connected by a professional.
2. Finish (According to the
direction as show in right figure.)
for a new one. Avoid extending the wire by yourself.
installation.
● For the air conditioner without plug, an air switch must be installed in the line.
The air switch should be all-pole parting and the contact parting distance should
be more than 0.12in (3mm).
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Installation of indoor unit
drain hose
Step eight: bind up pipe
1. Bind up the connection pipe, power
cord and drain hose with the band.
indoor unit
indoor and
outdoor power cord
gas
pipe
band
liquid pipe
drain hose
2. Reserve a certain length of drain
hose and power cord for installation
when binding them. When binding to
a certain degree, separate the indoor
power and then separate the drain
hose.
Step nine: hang the indoor unit
1. Put the bound pipes in the wall pipe and then make them pass through the wall
hole.
2. Hang the indoor unit on the wall-mounting frame.
3. Stuff the gap between pipes and wall hole with sealing gum.
4. Fix the wall pipe.
5. Check if the indoor unit is installed firmly and closed to the wall.
indoor
outdoor
connection pipe
indoor power cord
band
3. Bind them evenly.
4. The liquid pipe and gas pipe should
be bound separately at the end.
Note:
● The power cord and control wire
can't be crossed or winding.
● The drain hose should be bound
at the bottom.
upper hook
wall pipe
sealing gum
lower hook of
wall-mounting frame
Note:
● Do not bend the drain hose too excessively in order to prevent blocking.
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Page 22
Installation of outdoor unit
foot holes
(select it according to the actual installation situation)
1. Select installation location according to the house structure.
2. Fix the support of outdoor unit on the selected location with expansion screws.
Note:
installing the outdoor unit.
●
Make sure the support can withstand at least
four times of the unit weight.
● The outdoor unit should be installed at least
1.2in(3cm) above the floor in order to install
drain joint.
● For the unit with cooling capacity of 2300W
~5000W, 6 expansion screws are needed;
for the unit with cooling capacity of 6000W
~8000W, 8 expansion screws are needed;
for the unit with cooling capacity of 10000W
~16000W, 10 expansion screws are needed.
Step two: install drain joint
gnitaehdnagniloocrof ylnO(
unit)
1. Connect the outdoor drain joint into
the hole on the chassis, as shown in
the picture below.
2. Connect the drain hose into the drain
vent.
at least 1.18in (3cm) above
floor
the
1. Place the outdoor unit on the
support.
2. Fix the foot holes of outdoor unit
with bolts.
drain vent
Drain hose
chassis
outdoor drain joint
foot holes
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Page 23
Installation of outdoor unit
Step four: connect indoor and outdoor pipes
1. Remove the screw on the right han dle of outdoor unit and then remove
the handle.
screw
handle
2. Remove the screw cap of valve and
aim the pipe joint at the bellmouth of
pipe.
liquid pipe
liquid
valve
gas pipe
gas valve
3. Pretightening the union nut with
hand.
pipe joint
yellowgreen
union nut
4. Tighten the union nut with torque
wrench by referring to the sheet
below.
Hex nut diameter
1
Φ
4
3
Φ
8
1
Φ
2
5
Φ
8
3
Φ
4
Tight enin g
torque (N.m)
15~20
30~40
45~55
60~65
70~75
1. Remove the wire clip; connect the po-
wer connection wire and signal control
wire (only for cooling and heating unit) to the wiring terminal according to the
GND
L2
L1
Indoor unit connection
For some models with power
18K BTU wall-mounted type
2 3 L1
S L2L1
L2N(1)
G
handle
for 9k、12k models
N(1)
L1 L2
N(1)
Indoor unit connection
for 18K、24K models
Indoor unit connection
2 3
2 3
2 3 L1
2 3N(1)
GND
GND
GND
L2 GN(1)
GND
GND
POWER
GND
L2
L1
19
G
GND
L2
POWER
L1
SUPPLY
GND
Page 24
Installation of outdoor unit
2. Fix the power connection wire and signal control wire with wire clip (only for
cooling and heating unit).
Note:
● Never cut the power connection wire to prolong or shorten the distance.
Step six: neaten the pipes
1. The pipes should be placed along the wall,
bent reasonably and hidden possibly. Min.
semidiameter of bending the pipe is 3.9in
(10cm).
2. If the outdoor unit is higher than the wall
hole, you must set a U-shaped curve in the
pipe before pipe goes into the room, in
order to prevent rain from getting into the
room.
U-shaped curve
drain hose
wall
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Page 25
Vacuum pumping
Use vacuum pump
1. Remove the valve caps on
the liquid valve and gas
valve and the nut of refri gerant charging vent.
2. Connect the charging hose
of piezometer to the refri gerant charging vent of gas
valve and then connect the
other charging hose to the
vacuum pump.
3. Open the piezometer com pletely and operate for
10-15min to check if the
pressure of piezometer re mains in -0.1MPa.
4. Close the vacuum pump
and maintain this status for
1-2min to check if the pres sure of piezometer remains
in -0.1MPa. If the pressure decreases, there may be leakage.
5. Remove the piezometer, open the valve core of liquid valve and gas valve
completely with inner hexagon spanner.
6. Tighten the screw caps of valves and refrigerant charging vent.
liquid valve
gas valve
refrigerant charging
vent
nut of refrigerant
charging vent
piezometer
valve cap
vacuum pump
inner hexagon
spanner
close
open
Lo Hi
Leakage detection
1. With leakage detector:
Check if there is leakage with leakage detector.
2. With soap water:
If leakage detector is not available, please use soap water for leakage detection.
Apply soap water at the suspected position and keep the soap water for more
than 3min. If there are air bubbles coming out of this position, there's a leakage.
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Page 26
Check after installation
Items to be checked Possible malfunction
The unit may drop, shake or emit noise.
Have you done the refrigerant leakage
test? (heating) capacity.
It may cause condensation and water
dripping.
Is water drained well?
It may cause condensation and water
dripping.
Is the voltage of power supply according to the voltage marked on the
nameplate?
Is electric wiring and pipeline installed
correctly?
Is the unit grounded securely? It may cause electric leakage.
Does the power cord follow the speci-
Is there any obstruction in the air inlet
and outlet? (heating) capacity.
The dust and sundries caused during
installation are removed?
The gas valve and liquid valve of
connection pipe are open completely?
Is the inlet and outlet of piping hole
been covered?
It may cause malfunction or damaging
the parts.
It may cause malfunction or damaging
the parts.
It may cause malfunction or damaging
the parts.
It may cause malfunction or damaging
the parts.
(heating) capacit
It may cause insufficient cooling
(heating) capacity or waster eletricity.
y.
Test operation
1. Preparation of test operation
● The client approves the air conditioner.
● Specify the important notes for air conditioner to the client.
2. Method of test operation
● Put through the power, press ON/OFF button on the remote controller to start
operation.
● Press MODE button to select AUTO, COOL, DRY, FAN and HEAT to check
whether the operation is normal or not.
● If the ambient temperature is lower than 61°F(16°C), the air conditioner can’t
start cooling.
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Page 27
Configuration of connection pipe
1. Standard length of connection pipe
● 16,5ft (5m), 25ft (7.5m), 26,5ft (8m).
2.Min. length of connection pipe is 9,8ft (3m).
3.Max. length of connection pipe and max. high difference.
Cooling
capacity
5000Btu/h
(1465W)
7000Btu/h
(2051W)
9000Btu/h
(2637W)
12000Btu/h
(3516W)
18000Btu/h
(5274W)
4. The additional refrigerant oil and refrigerant charging required after prolonging
connection pipe
● After the length of connection pipe is prolonged for 32.8ft (10m) at the basis of
standard length, you should add 5ml of refrigerant oil for each additional
16,5ft(5m)
of connection pipe.
● The calculation method of additional refrigerant charging amount (on the basis
of liquid pipe):
Additional refrigerant charging amount = prolonged length of liquid pipe ×
additional refrigerant charging amount per meter
● Basing on the length of standard pipe, add refrigerant according to the
requirement as shown in the table. The additional refrigerant charging amount
per meter is different according to the diameter of liquid pipe. See the
following sheet.
Max length
of connection pipe
50ft (15) 83,3ft (25) 16,5ft (5) 33,3ft (10)
50ft (15) 100ft (30)16,5ft (5) 33,3ft (10)
50ft (15) 100ft (30)16,5ft (5) 66,5ft (20)
66,5ft (20) 100ft (30)33,3ft (10) 66,5ft (20)
83,3ft (25) 100ft (30)33,3ft (10) 66,5ft (20)
Max height
difference
Cooling
capacity
24000Btu/h
(7032W)
28000Btu/h
(8204W)
36000Btu/h
(10548W)
42000Btu/h
(12306W)
48000Btu/h
(14064W)
Max length
of connection pipe
Max height
difference
23
Page 28
Additional refrigerant charging amount for R410A
Diameter of connection pipe
Liquid pipe(in) Gas pipe(in)
Φ1/4
Φ1/4 or Φ3/8
Φ1/2
Φ5/8
Φ3/4
Φ7/8
Φ3/8 or Φ1/2
Φ5/8 or Φ3/4
Φ3/4 or Φ7/8
Φ1 or Φ1
1
/
_
_
4
Outdoor unit throttle
Cooling only(g/m) Cooling and heating(g/m)
15
15
30
60
20
50
120
120
250 250
350350
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Page 29
Pipe expanding method
pipe
pipe
smooth surface
Note:
Improper pipe expanding is the main cause of refrigerant leakage. Please expand
the pipe according to the following steps:
A: Cut the pipe
the distance of indoor unit and
outdoor unit.
● Cut the required pipe with pipe cutter.
pipe cutter
E: Expand the port
● Expand the port with expander.
hard
expander
mold
pipe
leaning uneven burr
B: Remove the burrs
● Remove the burrs with shaper and
prevent the burrs from getting into
the pipe.
shaper
downwards
C: Put on suitable insulating pipe
D: Put on the union nut
● Remove the union nut on the indoor
connection pipe and outdoor valve;
install the union nut on the pipe.
union pipe
Note:
● "A" is different according to the
diameter, please refer to the sheet
below:
Outer diameter
(mm)
Φ1/4"
Φ3/8"
Φ1/2"
Φ5/8"
A(mm)
Max Min
1.3 0.7
1.6 1.0
1.8 1.0
2.4 2.2
F: Inspection
● Check the quality of expanding port.
If there is any blemish, expand the
port again according to the steps
above.
improper expanding
pipe
the length is equal
25
leaning damaged
surface
crack uneven
thickness
Page 30
START-UP AND
TROUBLESHOOTING
Explain Following Items To Customer With The Aid Of The Owner’s Manual:
1. How to turn system on and off; selecting COOLING,HEATING and other
operating modes;setting a desired temperature; setting the timer to
automatically start and stop system operation; and all other features of the
Remote Control and display panel.
2. How to remove and clean the air filter.
3. How to set air with the swing louv
4. Explain care and maintenance.
5. Present the Owner’s Manual and installation instructions to customer.
Troubleshooting
This unit has onboard diagnostics. Error codes will appear on the LED display on
the front panel of the indoor unit in place of the temperature display. The table
below explains the error codes for both units.
DIAGNOSTIC CODES
ers.
Equipment Fault
Indoor Configuration Jumper
Indoor/Outdoor Mismatch
High Current Protection
Communication Error
Indoor Air Temp. Thermistor
Indoor Coil Temp. Thermistor
Outdoor Air Temp. Thermistor
Outdoor Coil Temp. Thermistor
Compressor Discharge Temp. Thermistor
Compressor Overload Protection
IPM Module Protection
Indoor Fan Malfunction
Compressor Synchronism
4-Way Valve Malfunction
High Pressure Protection
Error Codes
C5
LP
E5
E6
F1
F2
F3
F4
F5
H3
H5
H6
H7
U7
E1
Possible Causes
Missing Configuration Jumper on Indoor Control Board
Indoor and Outdoor Units Do Not Match (Model or Capacity)
Power Supply is not Stable and Voltage Range is too Large
Mis-wired or Communication Failure
Bad Connection, or Indoor Air Sensor Failure
Bad Connection, or Indoor Coil Sensor Failure
Bad Connection, or Outdoor Ambient Sensor Failure
Bad Connection, or Outdoor Coil Sensor Failure
Bad Connection, or Discharge Sensor Failure
Low Refrigerant Charge, Blocked Capillary, or Compressor Motor Failure
IPM Module Temperature Too High, High Ambient, Low Voltage, or Bad Connections
Indoor Fan Stopped or Running too Slow
High Pressure, Low Voltage, or Bad Connections
Bad Connection, Solenoid Failure, or Valve Malfunction. (Heat Pumps Only)
Too much refrigerant or High Ambient conditions or low airflow.
2
6
Page 31
www.cooperandhunter.us
PRODUCT & INSTALLATION RECORD
For your convenience, please record the model and serial numbers of your new equipment in
the spaces provided. This information, along with the installation data and dealer contact
information, will be helpful should your system require maintenance or service.
UNIT INFORMATION
Model No.
Serial No.
INSTALLATION INFORMATION
Date Installed:
DEALERSHIP/INSTALLER INFORMATION
Company Name:
Address:
Phone Number:
Technician Name:
Cooper and Hunter © 2016
Page 32
www.cooperandhunter.us
66160000459
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