Kolin KLG-IF70-2C1M User manual

Thank you for choosing these Air Conditioners, please read this owner’s manual carefully
before operation and retain it for future reference.
KOLIN reserves the right to interpret this manual which will be subject to any change due to
product improvement without further notice.
KOLIN Philippines International, Inc. reserves the final right to interpret this manual.
air conditioner
works
for
years
User Manual
Model:
KLG-IF70-2C1M

Contents
1 Safety Precautions ······································································· 1
2 Outline of the Unit and Main Parts············································· 2
3 Preparative for Installation··························································· 3
3.1 Standard Accessory Parts······························································ 3
3.2 Selection of the Installation Location············································ 4
3.3 Connection Pipe Requirement ······················································ 6
3.4 Electrical Requirement···································································· 7
4 Installation of the Unit··································································· 8
4.1 Installation of the Indoor Unit························································· 8
4.2 Installation of the Outdoor Unit···················································· 10
4.3 Installation of the Connection Pipe············································· 11
4.4 Vacuum and Gas Leakage Inspection ······································· 15
4.5 Installation of the Drain Pipe························································ 17
4.6 Electrical Wiring············································································· 19
5 Installation of Controllers··························································· 22
6 Test Running················································································ 23
6.1 Trial Operation and Testing·························································· 23
6. 2 Working Temperature Range······················································ 30
7 Troubleshooting and Maintenance··········································· 30
7.1 Troubleshooting············································································· 30
7.2 Routine Maintenance···································································· 32

1
1 Safety Precautions
WARNING!
This mark indicates procedures which, if improperly performed, might lead to the
death or serious injury of the user.
CAUTION!
This mark indicates procedures which, if improperly performed, might possibly
result in personal harm to the user, or damage to property.
WARNING!
(1). For operating the air conditioner pleasantly, install it as outlined in this installation manual.
(2). Connect the indoor unit and outdoor unit with the room air conditioner piping and cord available
from our standard parts. This installation manual describes the correct connections using the
installation set available from our standard parts.
(3). Installation work must be performed in accordance with national wiring standards by authorized
personnel only.
(4). If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in
contact with a flame, it produces toxic gas.
(5). Do not power on until all installation work is complete.
(6). During installation, make sure that the refrigerant pipe is attached firmly before you run the
compressor.
Do not operate the compressor under the condition of refrigerant piping not attached properly
with 2-way or 3-way valve open.
This may cause abnormal pressure in the refrigeration cycle that leads to breakage and even
injury.
(7). During the pump-down operation, make sure that the compressor is turned off before you remove
the refrigerant piping.
Do not remove the connection pipe while the compressor is in operation with 2-way or 3-way
valve open.
This may cause abnormal pressure in the refrigerant cycle that leads to breakage and even
injury.
(8). When installing and relocating the air conditioner do not mix gases other than the specified
refrigerant (R410A) to enter the refrigerant cycle.
If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to an
abnormally high value and cause breakage, injury, etc.
(9). 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.
(10). Children should be supervised to ensure that they do not play with the appliance.
(11). 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.

2
2 Outline of the Unit and Main Parts
Fig. 2.1
Notes: The connection pipe for this unit should be prepared by the user.

3
3 Preparative for Installation
3.1 Standard Accessory Parts
The standard accessory parts listed below are furnished and should be used as
required. Table 3.1
Indoor Unit Accessories
No.
Name
Appearance
Q'ty
Usage
1
Wireless Controller +
Battery
1+2
To control the indoor unit
2
Insulation
1
To insulate the gas pipe
3
Insulation
1
To insulate the liquid pipe
4
Installation Paperboard
2
To insulate the drain pipe
5
Fastener
4
To fasten the sponge
6
Nut
1
To connect gas pipe
7
Nut
1
To connect liquid pipe
Table 3.2
Outdoor Unit Accessories
No.
Name
Appearance
Q'ty
Usage
1
Drain Plug
3
To plug the unused drain
hole.
2
Drainage Connecter
or
1
To connect with the hard
PVC drain pipe

4
3.2 Selection of the Installation Location
WARNING!
The unit must be installed where strong enough to withstand the weight of the unit and fixed
securely, otherwise the unit would topple or fall off.
CAUTION!
①. Do not install where there is a danger of combustible gas leakage.
②. Do not install the unit near heat source, steam, or flammable gas.
③. Children under 10 years old must be supervised not to operate the unit.
Decide the installation location with the customer as follows:
3.2.1 Indoor Unit
(1). Select a place, avoid the inflammable gas produce or leakage.
(2). Select a place avoid the water vapor or oil sprayed on the unit.
(3). Ensure that airflow can reach every conner of the room.
(4). Choose a place so that the connection pipe could be easily pulled out.
(5). Select the place where the airflow of the unit can not be blocked.
(6). Select the position where the few outer air influenced.
(7). Select the firm and flat ground.
(8). Ensure sufficient clearance and space for service and maintenanc.
(9). Ensure the installation of indoor unit is in conformity with the requirements of
installation dimension drawing;
(10). Do not use the unit in the immediate surroundings of a laundry a bath a
shower or a swimming pool.
(11). A location from which the condensation water can be drained out
conveniently.
(12). Leave service space around the unit as required in Fig. 3.1.

5
Unit: mm
Fig. 3.1
3.2.2 Outdoor Unit
WARNING!
①. Install the unit where it will not be tilted by more than 5°.
②. During installation, if the outdoor unit has to be exposed to strong wind, it must be fixed securely.
If possible, do not install the unit where it will be exposed to direct sunlight. (If
necessary, install a blind that does not interfere with the air flow.)
(1). Install the outdoor unit in a place where it will be free from being dirty or getting
wet by rain as much as possible.
(2). Install the outdoor unit where it is convenient to connect with the indoor unit.
(3). Install the outdoor unit where the condensate water can be drained out freely
during heating operation.
(4). Do not place animals and plants in the path of the warm air.
(5). Take the air conditioner weight into account and select a place where noise
and vibration are small.
(6). Install the outdoor unit where is capable of withstanding the weight of the unit
and generates as less noise and vibration as possible.
(7). Provide the space shown in Fig. 3.2, so that the air flow is not blocked. Also for
efficient operation, leave three of four directions of peripheral constructions
open.

6
Unit: mm
Fig. 3.2
3.3 Connection Pipe Requirement
CAUTION!
The maximum length of the connection pipe is listed in the Table below. Do not place the units
between which the distance exceeds the maximum length of the connection pipe.
Table 3.3
Item
Model
Size of Fitting
Pipe(Inch)
Max. Pipe
Length (m)
Max. Height
Difference between
Indoor Unit and
Outdoor Unit (m)
Drainage pipe(Outer
Diameter ×wall
thickness) (mm)
Liquid
Gas
KLG-IF70-2C1M
3/8
3/430 10
φ17×1.75
Note:
①.The connecting pipe should be thermally insulated properly.
②.The pipe wall thickness shall be 0.5-1.0 mm and the pipe wall shall be able to
withstand the pressure of 6.0 MPa. The longer the connecting pipe, the lower
the cooling and heating effect performs.
③.The pipe wall thickness shall be 0.5-1.0 mm and the pipe wall shall be able to
withstand the pressure of 6.0 MPa. The longer the connecting pipe, the lower
the cooling and heating effect performs.

KLG-IF70-2C1M
KLG-IF70-2C1M
230V ~ 60Hz
230V ~ 60Hz 40 6.0

8
4 Installation of the Unit
4.1 Installation of the Indoor Unit
WARNING !
①. The unit installation work must be done by qualified personnel according to the local rules and this
manual.
②. When removing the unit to the other place, please firstly contact with the local maintenance
center.
4.1.1 Indoor unit dimension
Unit: mm
Fig. 4.1

9
4.1.2 Preparation for Installing the Indoor Unit
It’s required to disassemble the air intake panel before conducting piping and
wiring work.
(1). Dismantle the screw-shielding cover from both sides of the panel.
(2). Remove the screws distributed on the panel by a screwdriver. (See Fig.4.2)
(3). Pull out the panel as per the arrowed direction. (See Fig.4.2) The internal
parts of the unit are shown in Fig.4.3.
(4). When performing piping and wiring work on the left, right and rear side, please
adopt the attached accessories. (See Fig. 4.4 and Fig.4.5)
Fig. 4.2 Fig. 4.3
Fig. 4.4 Fig. 4.5

10
4.2 Installation of the Outdoor Unit
WARNING
①. Install the unit where it will not be tilted by more than 5°.
②. During installation, if the outdoor unit has to be exposed to strong wind, it must be fixed securely.
4.2.1 Outdoor unit dimension
Fig. 4.6
Table 4.2 Unit: mm
Item
Model
A
B
C
D
E
KLG-IF70-2C1M 1085 427 1365 620 395
4.2.2 Condensate Drainage of the Outdoor Unit(Only for the heat
pump unit) (Fig. 4.7)
(1). It is required to install a drain pipe for the outdoor unit to drain out the
condensate water during heating operation. (only for the heat pump unit)
(2). When installing the drain pipe, apart from the drain pipe mounting hole, all
other holes should be plugged so as to avoid water leakage.(only for the heat

11
pump unit)
(3). Installation Method: Insert the pipe joint into the hole φ25 located at the base
plate of the unit and then connect the drain pipe to the pipe joint.
Fig. 4.7
4.3 Installation of the Connection Pipe
4.3.1 Flare Processing
(1). Cut the connection pipe with the pipe cutter and remove the burrs.
(2). Hold the pipe downward to prevent cuttings from entering the pipe.
(3). Remove the flare nuts at the stop valve of the outdoor unit and inside the
accessory bag of the indoor unit, then insert them to the connection pipe, after
that, flare the connection pipe with a flaring tool.
(4). Check if the flare part is spread evenly and there are no cracks (see Fig. 4.8).
Fig. 4.8
4.3.2 Bending Pipes
(1). The pipes are shaped by your hands. Be careful not to collapse them.
Fig. 4.9
(2). Do not bend the pipes in an angle more than 90°.

12
(3). When pipes are repeatedly bent or stretched, the material will harden, making
it difficult to bend or stretch them any more. Do not bend or stretch the pipes
more than three times.
(4). When bending the pipe, do not bend it as is. The pipe will be collapsed. In this
case, cut the heat insulating pipe with a sharp cutter as shown in Fig. 4.10,
and bend it after exposing the pipe. After bending the pipe as you want, be
sure to put the heat insulating pipe back on the pipe, and secure it with tape.
Fig. 4.10
CAUTION!
①. To prevent breaking of the pipe, avoid sharp bends. Bend the pipe with a radius of curvature of 150
mm or over.
②. If the pipe is bent repeatedly at the same place, it will break.
4.3.3 Connecting the Pipe at the Indoor Unit Side
CAUTION!
①. Be sure to apply the pipe against the port on the indoor unit correctly. If the centering is improper,
the flare nut cannot be tightened smoothly. If the flare nut is forced to turn, the threads will be
damaged.
②. Do not remove the flare nut until the connection pipe is to be connected so as to prevent dust and
impurities from coming into the pipe system.
(1). Detach the caps and plugs from the pipes.
(2). Align the center of the piping flare with the pyramidal face of relevant valve.
(3). Screw in the flare nut by hand and then tighten the nut with spanner and
torque wrench refer to the following.（Table 4.3）

13
Fig. 4.11
Table 4.3 Flare nut tightening torque
Pipe Diameter
Tightening Torque
1/4〞（Inch）
15-30 (N·m)
3/8〞（Inch）
35-40 (N·m)
5/8〞（Inch）
60-65 (N·m)
1/2〞（Inch）
45-50 (N·m)
3/4〞（Inch）
70-75 (N·m)
7/8〞（Inch）
80-85 (N·m)
CAUTION!
Firstly connect the connection pipe to indoor unit, then to outdoor unit; pay attention to the piping
bending, do not damage the connection pipe; the joint nut couldn’t tighten too much, otherwise it
may cause leakage.
4.3.4 Connecting the Pipe at the Outdoor Side Unit
Tighten the flare nut of the connection pipe at
the outdoor unit valve connector. The tightening
method is the same as that as at the indoor side.
Fig. 4.13

14
4.3.5 Checking the Pipe Connections for Gas Leaking
For both indoor and outdoor unit side, check the joints for gas leaking by the use of
a gas leakage detector without fail when the pipes are connected.
4.3.6 Heat Insulation on the Pipe Joints (Indoor Side Only)
Stick coupler heat insulation (large and small) to the place where connecting pipes.
Fig. 4.13
4.3.7 Liquid Pipe and Drain Pipe
(1). If the outdoor unit is installed lower than
the indoor unit (See Fig. 4.14)
1). A drain pipe should be above ground and
the end of the pipe does not dip into
water. All pipes must be restrained to the
wall by saddles.
2). Taping pipes must be done from bottom
to top.
3). All pipes are bound together by tape and
restrained to wall by saddles.
Fig. 4.14

15
(2). If the outdoor unit is installed higher than
the indoor unit
1). Taping should be done from lower to the
upper part.
2). All pipes are bound and taped together
and also should be trapped to prevent
water from returning to the room (See
Fig. 4.15)
3). Restraint all pipes to the wall with
saddles.
Fig. 4.15
4.4 Vacuum and Gas Leakage Inspection
CAUTION!
Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation! There is
no extra refrigerant in the outdoor unit for air purging!
4.4.1 Vacuum
(1). Remove the caps of the liquid valve, gas valve and also the service port.
(2). Connect the hose at the low pressure side of the manifold valve assembly to
the service port of the unit’s gas valve, and meanwhile the gas and liquid
valves should be kept closed in case of refrigerant leak.
(3). Connect the hose used for evacuation to the vacuum pump.
(4). Open the switch at the lower pressure side of the manifold valve assembly
and start the vacuum pump. Meanwhile, the switch at the high pressure side of
the manifold valve assembly should be kept closed, otherwise evacuation
would fail.
(5). The evacuation duration depends on the unit’s capacity, generally, 30 minutes
for the 36K units, 45 minutes for the 60K units. And verify if the pressure
gauge at the low pressure side of the manifold valve assembly reads -1.0Mp
(-75cmHg), if not, it indicates there is leak somewhere. Then, close the switch
fully and then stop the vacuum pump.
(6). Wait for some time to see if the system pressure can remain unchanged, 10

16
minutes for the 36/60K units. During this time, the reading of the pressure
gauge at the low pressure side can not be larger than 0.005Mp (0.38cmHg).
(7). Slightly open the liquid valve and let some refrigerant go to the connection
pipe to balance the pressure inside and outside of the connection pipe, so that
air will not come into the connection pipe when removing the hose. Note that
the gas and liquid valve can be opened fully only after the manifold valve
assembly is removed.
(8). Place back the caps of the liquid valve, gas valve and also the service port.
Fig. 4.16
Note: For the large-sized unit, it has the service port for both the gas valve and the liquid valve.
During evacuation, it is available to connect two hoses of the manifold valve assembly to two
service ports to quicken the evacuating speed.
4.4.2 Additional Charge
36K：Refrigerant suitable for a piping length of 5m is charged in the outdoor unit at
the factory.When the piping is longer than 7m, additional charging is necessary.
60K：Refrigerant suitable for a piping length of 7.5m is charged in the outdoor unit
at the factory.When the piping is longer than 10 m, additional charging is necessary.
For the additional amount, see Table 4.4.
Table 4.4
Item
Model
Additional Refrigerant Amount for Extra Pipe
KLG-IF70-2C1M
60g/m
When the height difference between the indoor unit and outdoor unit is larger than
10 meters, an oil bend should be employed for every 6 meters.

17
Fig. 4.17
4.5 Installation of the Drain Pipe
4.5.1 Precautions When Doing the Piping Work
(1). Keep piping as short as possible and slope it downwards at a gradient of at
least 1/100 so that air may not remain trapped inside the pipe.
(2). Keep pipe size equal to or greater than that of the connecting pipe.
(3). Install the drain piping as shown and take measures against condensation.
Improperly rigged piping could lead to leaks and eventually wet furniture and
belongings.
Fig. 4.18
(4). Connect the drain hose.

18
4.5.2 Installing the Drain Pipes
(1). Insert the drain hose into the drain socket up to the base, and tighten the
clamp securely with the tape.
(2). Insert the drain hose into the drain outlet, and tighten the clamp securely with
tape.
◆Tighten the clamp until the screw head is less then 4
mm from the hose.
①-Metal clamp
②-Drain hose
③-Grey tape
◆Insulate the pipe clamp and the drain hose using
heat insulation sponge.
①- Metal clamp
②- Insulation sponge
(3). When drain hose requires extension, obtain an extension hose commercially
available.
(4). After connecting the local drain hose, tape the slits of the heat insulation tube.
(5). Connect the drain hose to the local drain pipe. Position the inter connecting
wire in the same direction as the piping.
(6). Install the Baffle after installation of connection pipe and drainage pipe
according to Fig.4
Fig. 4.19
1). Loosen the screws and adjust the baffle position up and down to clamp
connection pipe/ drainage pipe as much as possible.
2). Tighten the screws.
4.5.3 Testing of Drain Piping
(1). After piping work is finished, check if drainage flows smoothly.
(2). Pour water into the drain pan from the right side to check that water flows
smoothly from the drain hose.