Galactic GFZ18H-S1 Technical manual

Thank you very much for purchasing this Air Conditioner. Please
read this carefully before installing
and using this appliance and keep this manual for future reference.
use and installation instructions
GFZ18H-S1 / GCZ18H-S1
GFZ24H-S1 / GCZ24H-S1
GFZ36H-S1 / GCZ36H-S1
GFZ48H-S1 / GCZ48H-S1
GFZ60H-S1 / GCZ60H-S1

Welcome to use our product!
Thanks for trusting us.
Please read this manual carefully before installation!
Keep it properly for future use after installation!
Features of
The indoor unit’s
can be installed inside the ceiling conveniently.
Flexible Installation Options
According to the actual installation space,
the indoor unit
High Efficiency and Environment Friendly
New Refrigerant-R410A
R410A can protect the environment and do
not harm to the ozone layer.
24-hour Timer ON and OFF
This Timer can be set to automatically turn
the unit on or off within a 24-hour period.
Ceiling&Floor Air Conditioner
thickness is only 230mm,
can be installed in the ceiling
or on the floor. One unit, two installation
method.
Save Installation Space Mute Operation
The excellent fan design enable the airflow
to be quiet and smooth with minimum noise.
Various Refrigerant Pipe Connect Methods
The refrigerant pipe can be connected from 3
different directions(rear, right or top) .
More methods, more conveniently.
Self Recovery of Power Break
When the power supply is recovered after
break, all preset are still effective and the air-
conditioner can run according to the original
setting.
Fault Self-diagnose Function
When there is something wrong with the air-
conditioner, the micro computer could
diagnose the faults, which can be read from
the display and is convenient for maintenance.

Contents
--------------------------------------------------------------------------------2
-------------------------------------------------------------------3
Operation Manual
----------------------------------------------------------------------------------
-----------------------------------------------------------------------------------
Diagram of Refrigerant Cycle & Wiring
1.Refrigerant Flow Diagram ----------------------------------------------------------------7
2.Electrical Wiring Diagram ----------------------------------------------------------------7
Alert Symbols--------------------------------------------------------------------------------------1
Caution Statements
Composition of the Air-Conditioner
Special Remarks 5
Trouble shooting 5
Installation and Maintenance
------------------------------------------------------- -------- --------
---------------------------------- ---- ----------- -
--------------------------------------- --------- -------
- ---- -- --------------------------------------------------- -------
---- ---------------------------------------------------- -- ------
------------------------------------------------------------------ ---
------ ------------------------------------------ -----------------
--- ------------------------------------ ------------------
--------------------------------------------------- ---------------------- 15
----------------------------- ------------------- ---------------------
---------------------------------- ---------------------
.1 Installation Sites ---------------------------------------------- --------------------
.2 Installation of the Outdoor Unit ----------------------------- --------------------------
------------------------------------------------------ ----- ----------------- 18
9.1 Flaring with Tube Expander -------------------------------------------- --------------------- 18
9.2 Connecting Tubing Between Indoor and Outdoor Units ------------------------------------ ------- 18
9.3 Heat Insulation of the Refrigerant Tube --------------------------------------------------- ------ 18
9.4 Taping the Tubes ------- ------------------------------------------------------------- ------- 18
9.5 Finishing the Installation ------ ------------------------------------------------------- -------- 18
10 --------------------------------------------------------------------- --- 18
10.1 Air Purging with a Vacuum Pump ------------------------------------------------------ --- 18
10.2 Leak Test --------------- ------------------------------------------------------------ ------ 19
10.3 Tidy Up the Tubing ------- ----------------------------------------------------------- -------- 19
10.4 Test Run --------------- ------------------------------------------------------------- ------ 19
10.5 Common-------------------------------------------------------------------------------- - 20
1. Safety Notice 8
2. The Tools and Instruments for Installation 9
3. The Installation of the Indoor Unit 9
3.1 Before Installation 9
3.2 Installation Location 11
3.3 Installation 11
4. Refrigerant Pipe 14
4.1 The Pipe Material 14
4.2 The Connection of the Pipe 14
5. Drain Piping
6. Electrical wiring 16
7. Attaching the Air Return Grille 16
. The Installation of the Outdoor Unit 17
. Refrigerant Tubing
. Air Purging and Test Run
--------- -
--------- -
--------- -
- --- --- -
------ - -
------------------------------------------------------------------------------
--------
------ --
----- --- -
--------
- --------
--------------------------------------------------------------------
--------
--------
-------
- --------- -
---------
-------
-------
--- -----
--- -----
--------
------ ------
--- -----
--- ----
--- -----
----------
--------------
---------
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--------------
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-----------
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--
---
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8
8 17
17 8
9

: The symbol refers to a hazard which can result in severe personal injury or death.
: The symbol refers to a hazard or an unsafe practice which may result in severe personal
injury or death.
: The symbol refers to a hazard or an unsafe practice which may result in personal injury,
product or property damage.
It refers to the remarks and instruction to the operation, maintenance, and service.
DANGER
WARNING
CAUTION
NOTE
Alert Symbols：
1
Contents
● This heat pump air conditioner has been designed for the following temperatures.
Operate the heat pump air-conditioner within this range.
Outdoor Working Temperature(℃)
Maximum
Minimum
Cooling Operation
48
-15
Heating Operation 24 -15
Storage condition: Temperature -25~60℃
Humidity 30%~80%

We recommend that this air-conditioner be installed properly by qualified installation technicians in
accordance with the installation instructions provided with the unit.
Before installation, check if the voltage of the power supply in your home or office is the same as the voltage
shown on the nameplate.
You must not carry on any transformation to this product, otherwise, it may possibly
cause such consequences as the water leakage, the breakdown, the short-circuit, an
electric shock, fire, etc.
The work such as tube line welding, etc. should be carried out far away from the
flammable explosive material vessels, including the air-conditioner refrigerant, to
guarantee the security of the site.
To protect the air-conditioner from heavy corrosion, avoid installing the outdoor unit
where salty seawater can splash directly onto it or in sulphurous air near a spa. Do
not install the air-conditioner where excessively high heat-generating objects are
placed.
Never use gasoline or other inflammable gas near the air-conditioner, which is very
dangerous.
If the supply cord is damaged, it must be replaced by the factory or its service
department in case of danger.
The place where this product is installed must have the reliable electrical earth facility
and the equipment. Please do not connect the grounding of this product to various kinds
of air-feeding tube lines, the drain lines, the lightning protection facility as well as other
tube lines to avoid receiving an electric shock and damages caused by other factors.
Wiring must be done by a qualified electrician. All the wiring must comply with the local
electrical codes.
Consider the capacity of the electric current of your electrical kilowatt-hour meter wires
and socket before installation.
The power wire where this product is installed is supposed to have the independent
leakage protective device and the electric current over-load protection device which are
provided for this product.
The appliance is not to be used 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. Children should be supervised not to play with
the appliance.
Means for disconnection, which can provide full disconnection in all poles, must be
incorporated in the fixed wiring in accordance with the wiring rules.
Do not turn the air-conditioner on and off from the power main switch. Use the
ON/OFF operation button.
Do not stick anything into the air inlet and air outlet of both the indoor and
outdoor units. This is dangerous because the fan is rotating at a high speed.
Do not cool or heat the room too much if babies or invalids are present.
Caution Statements
2
DANGER
WARNING
Read this manual carefully before using this air-conditioner. If you still have any
difficulties or problems, consult your dealer for help.
The air-conditioner is designed to provide you with comfortable room conditions. Use
this unit only for its intended purpose as described in this instruction manual.
WARNING
CAUTION

ON/OFF
MODE FAN
SWING
SWING
SLEEP SUPER
SMART IFEEL DIMMER
TIMER ON TIMER OFF CLOCK
ON
OFF
ON
OFF
Air Outlet
Air Intake
Vertical Louver
Horizontal Louver
Wireless Remote Controller
Filter
Display Panel
(Inside of Air Intake)
(Inside of Horizontal Louver)
3
Composition of the Air-conditioner
Indoor Unit
Outdoor Unit
48K,60K
18K,24K,36K
Notes:
Figures in the manual are only simple representation of the appliance, its may not comply with the appearance
of the air conditioner you purchased.
Vertical adjustment louver swing automatically function is only available for some models.

4
Composition of the Air-conditioner
The figures in this manual are based on the external view of a standard model.
Consequently, the shape may differ from that of the air conditioner you have selected.
* It can be set or canceled by professional after-sale stuff.
Display Panel
It lights on when timer is in
use.It lights off when timer
finishes.
It lights on when the filter
should be cleaned.
The filter clean is reset if press
the switch.
Press it the appliance will be stopped
when the unit is runing;
Press it for 5s,the appliance will be
forced cooling when the unit is OFF.
It lights on during the defrost.
It lights off when defrost
finishes.
Receives signal from the
remote controller.
Timer indicator ( )Green
Filter clean* ( )Yellow
Emergency switch
Defrost indicator ( )Green
Signal receiving section
It lights on during operation.
It lights off all when setting
SLEEP mode.
Run indicator ( )Red
Wire remote controller Wireless remote controller
You can control the air-conditioner with the wire remote controller or wireless remote controller.
It is used for controlling power ON/OFF,setting the running mode, temperature,fan speed and other functions.
There are different types of remote controllers can be selected.
Operate instruction will be further specified in remote controller's manual separately.
Please read it carefully before using this appliance and keep it for future reference.
SET TEMP
ROOM
TEMP
C
AUTO
NO
.
TIMER ON
TIMER OFF
SET TIMER
A
Remote controller(optional)
ON/ OFF
MODE FA N
SLEE P SUP ER
SMART I FEE L DIM MER
TIME R ON TIM ER OFF CLOC K
ON
OFF
ON
OFF
SWIN G
SWIN G
ON
OFF
MODE
SMART
QUIE T DIM MER
ECON OMY
FEEL
SUPE R
FAN SPE ED
CLOC K
TIME R ON TIME R OFF
SLEE P
TEMP.
TEMP.
确定

Operation Manual
Special remarks
·Cooling operation
The fan of the indoor unit will never stop running. It remains running even if the compressor stops working.
·Heating operation
Since the air conditioner carries out the heating operation by drawing on the heat of the outside air (through
heating pump), the heating capacity may decrease if the temperature outside the room is too low. If the
heating effect is not so satisfying, use some other heating device together.
·Anti-freezing function during cooling
When the temperature of the air from the indoor outlet is too low, the unit will run for some time under the
fan mode, to avoid frost or ice forming in the indoor heat exchanger.
·Cold air prevention
In several minutes after the heating mode is started, the fan of the indoor unit will not run until the heat
exchanger of the indoor unit reaches a high enough temperature. That is because cold air prevention system
is operating.
·Defrosting
When the outdoor temperature is too low, frost or ice may form in the outdoor heat exchanger, reducing
heating performance. When this happens, a defrosting system of the air conditioner will operate. At the same
time the fan in the indoor unit stops(or runs at a very low speed in some cases), a few minutes later, the
defrosting is over, and the heating operation restarts.
·Blow out the survival heating air
When stop the air conditioner in normal operation, the fan motor would run in low speed for a while to blown
out the survival heating air.
·Self Recovery of Power Break
When the power supply is recovered after break, all preset are still effective and the air-conditioner can run
according to the original setting.
Troubleshooting
When overflow of drain water from the indoor unit occurs, stop the operation and contact your contractor.
When you smell or see white smoke coming from the unit, turn OFF the main power supply and contact
your contractor.
1. If Trouble Still Remains ...
If the trouble still remains even after checking the following, contact your contractor and inform them of the
following items.
(1)Unit Model Name
(2)Content of Trouble
2. No Operation
Check whether the SET TEMP is set at the correct temperature.
CAUTION
3 minutes protect after compressor stop
For protect compressor, there are at lest 3 minutes stopping after compressor stop.
minutes protect
Compressor must run 5 minutes at least once running. In the 5 minutes, compressor will not stop
even the room temperature reach the setting point unless you use remoter to turn off the unit.
·
· 5
5

6
Operation manual
3. Not Cooling or Heating Well
Check for obstruction of air flow of outside or inside units.
Check if too much heat source exists in the room.
Check if the air filter is clogged with dust.
Check to see if the doors or windows are opened or not.
Check if the temperature condition is not within the operation range.
4. This is Not Abnormal
Smells from indoor unit
Smell adheres on indoor unit after a long period of time. Clean the air filter and panels or allow a good
ventilation.
Sound from Deforming Parts
During system starting or stopping, an abrading sound might be heard. However, this is due to thermal
deformation of plastic parts. It is not abnormal.
Steam from Outdoor Heat Exchanger
During defrosting operation, ice on the outdoor heat exchanger is melted, resulting in making steam.
Dew on Air Panel
When the cooling operation continues for a long period of time under high humidity conditions(higher than
27℃/80%R.H.), dew can form on the air panel,
Refrigerant Flow Sound
While the system is being started or stopped, sound from the refrigerant flow may be heard.
please set the appliance at high fan speed and adjust louvers
to the max. angle.
5.Filter removing and installing
Removing filter from air return grille
Reset the filter
nsert the filer to the grille and aim the bottom hooks. Pay attention to grille top hooks is locked .
Fix four screws .
Take out the air filter according the following steps.
Step1
Slide the air return grille holding knobs(4 places) , then remove the holding screws(4 or 6 places) as shown
by the arrow mark.
Step2
Open the air return grille to an angle of more than 45°and take out the air filter from the air inlet grille by
supporting the air grille and lifting the air filter after detaching the filter from the hinges.
Step1:I
Step2:
Step3:The intake grille is attached.
step 1
bottom hook
top hook
step 2
6

Diagram of refrigerant cycle & Wiring
1.REFRIGERANT FLOW DIAGRAM
2.ELECTRICAL WIRING DIAGRAM
7
Gas piping
Wide service valve
Compressor
Accumulator
4-way valve
Heat exchanger
Liquid piping
Heating cycle
Cooling cycle
INDOOR UNIT OUTDOOR UNIT
Heat exchanger
EEV
Service valve
Outdoor unit Indoor unit
Terminal Terminal
SI
L
N
SI
L
N
Power connecting cord
N
L
Power supply
Power supply
Outdoor unit Indoor unit
Terminal Terminal
SI
L
N
SI
L
N
Power connecting cord
N
W
V
U
48K/60K
18K/24K/36K

1. Safety Notice
8
Installation and Maintenance
WARNING
·Installation should be left to the dealer or another professional person. (Improper installation may cause
water leakage, electrical shock, or fire.)
·Install the unit according to the instruction given in this manual. (Incomplete installation may cause water
leakage, electrical shock, or fire.)
·Be sure to use the supplied or specified installation parts. (Use of other parts may cause the unit to come to
lose, water leakage, electrical shock, or fire.)
·Install the air conditioner on a solid base that can support the unit weight. (An inadequate base or
incomplete installation may cause injury in the event the unit falls off the base. )
·Electrical work should be carried out in accordance with the installation manual and the local national
electrical wiring rules or code of practice.
(Insufficient capacity or incomplete electrical work may cause electrical shock or fire. )
·Be sure to use a dedicated power circuit. (Never use a power supply shared by another appliance. )
·For wiring ,use a cable long enough to cover the entire distance with no connection, do not use an extension
cord.
·Do not put other loads on the power supply, use a dedicated power circuit. (Failure to do so may cause
abnormal heat, electric shock or fire.)
·Use the specified types of wires for electrical connections between the indoor and outdoor units. (Firmly
clamp the interconnecting wires so their terminals receive no external stresses.)
·Incomplete connections or clamping may cause terminal overheating or fire.
·After connecting interconnecting and supply wiring be sure to shape the cables so that they do not put
undue force on the electrical covers or panels. (Install covers over the wires, incomplete cover installation may
cause terminal overheating, electrical shock or fire.)
·When installing or relocating the system, be sure to keep the refrigerant circuit free from substances other
than the specified refrigerant (R410A), such as air. (Any presence of air or other foreign substance in the
refrigerant circuit causes an abnormal pressure rise or rupture, resulting in injury.)
·If any refrigerant has leaked out during the installation work, ventilate the room. (The refrigerant reduces a
toxic gas if exposed to flames.)
·After all installation is completed, check to make sure that no refrigerant is leaking out. (The refrigerant
produces a toxic gas if exposed to flames.)
·When carrying out piping connection, take care not to let air substances other than the specified refrigerant
go into refrigeration cycle. (Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration
cycle, explosion and injury. )
·Be sure to establish an earth. Do not earth the unit to a utility pipe, arrester, or telephone earth. Incomplete
earth may cause electrical shock. (A high surge current from lightning or other sources may cause damage to
the air conditioner.)
·An earth leakage circuit breaker may be required depending on site condition to prevent electrical shock.
(Failure to do so may cause electrical shock. )
·Disconnect the power supply before completion of wiring, piping, or checking the unit.
·When moving the indoor unit and outdoor unit, please be careful. Do not make the outdoor unit incline over
45 degree. Please avoid to be hurt by the sharp edge of the air conditioner.
·Install the remote controller: Be sure that the length of the wire between the indoor unit and remote
controller is within 40 meters.
·Do not install the air conditioner in a place where there is danger of exposure to inflammable gas leakage.
(If the gas leaks and builds up around the unit, it may catch fire.)
·Establish drain piping according to the instructions of this manual. (Inadequate piping may cause flooding.)
·Tighten the flare nut according to the specified method such as with a torque wrench. (If the flare nut is
tightened too hard, the flare nut may crack after a long time and cause refrigerant leakage.)
CAUTION

During installation, do not damage the insulation material on the surface of the indoor unit.
3. The Installation of the Indoor Unit
9
Installation and Maintenance
CAUTION
2. The Tools and Instruments for Installation
Number
1
2
3
4
5
6
7
Tool
Standard screwdriver
Vacuum pump
Charge hose
Pipe bender
Adjustable wrench
Tube cutter
Cross head screw-driver
Number
8
9
10
11
12
13
14
Tool
Gradienter
Hammer
Churn drill
Knife or wire stripper
Tube expander
Inner hexagon spanner
Tape measure
3.1 Before installation
·When moving the unit during or after unpacking, make sure to lift it by holding its lifting lugs.
Do not exert any pressure on other parts, especially the refrigerant piping, drain piping and flange parts.
·Wear protective gears (gloves and so on) when install the unit.
·Install correctly according to the installation manual.
·Confirm the following points:
○ Unit type/Power supply specification
○ Pipes/Wires/Small parts
○ Accessory items

Air Return Grille
Accessoies are inside.
ACCESSORY ITEMS
Installation and Maintenance
10
For Unit Hanging
For Unit Hanging And
Adjustment
For Fixing Of Pipe Cover
For Refrigerant Piping
Connection
For Drain Pipe Connection
For Joint Socket Connection
For Drain Hose Connection
For Drain Hose Cover
1
1
1
1
2
2
1
10
8
1For Drain Hose Connection
1For Drain Hose And Piping
Connection
Heavy Insulation
Joint Socket
Paper Pattern
Jump Ring
Plastic Sheath

3.3 Installation
According to the actual installation space, install it in the ceiling
or on the floor.
3.3.1 Suspension bolts
(1) Consider the pipe direction, wiring and maintenance
carefully, and choose the proper direction and location
for installation.
(2) Install the suspension bolts as shown in Fig. 3.3.1
below.
Fig. 3.3.1 Fixing the suspension bolts
Fig. 3.2.1
·For the concrete
(Unit:mm)
·For the steel beam
·For the wooden beam
150 to160mm
Screw in
（100 to150kg）
Steel bar
Concrete
Suspension bolts
(W3/8 or M10)
“ ” shaped steel beam
Wood rib
60mm to 90mm （ ）
Wooden beam
Nut Round washer
Square washer
Suspension bolts
11
3.3.2 The position of the suspension bolts and the pipes
(1) Mark the positions of the , the
positions of the refrigerant pipes and the drain pipes.
(2) The dimension are shown below.
suspension bolts
Installation and Maintenance
·Select the suitable areas to install the unit under
approval of the user.
When plural indoor units are installed nearby, keep
them away for more than 4-5m.
·
·
·
·
·
·
·
·
·
The air passage is not blocked.
Condensate can drain properly.
The ceiling is strong enough to bear the weight of
the indoor unit.
Sufficient clearance for maintenance and servicing
Piping between the indoor and outdoor units is
within the allowable limits.(refer to the installation of
the outdoor unit )
The indoor unit, outdoor unit, power supply wiring
and transmission wiring is at least 1 meter away from
televisions and radio, this prevents image interference
and noise in electrical appliances. (Noise may be
generated depending on the conditions under which
the electric wave is generated, even if a one-meter
allowance is maintained.)
Use suspension bolts to install the unit, check
whether or not the ceiling is strong enough to support
the weight of the unit. If there is a risk that the ceiling
is not strong enough, reinforce the ceiling before
installing the unit.
is ensured.(See Fig.3.2.1 )
If there are 2 units of wireless type, keep them
away for more than 6 m to avoid malfunction due to
cross communication.
Suspension bolts
(W3/8 or M10)
Nut
3.2 Installation location
Space for installation and service
Fig. 3.3.2 Suspension bolts
Ceiling Installation
Floor standing Installation
100mm or more 150mm or more
4000~5000mm or more
5mm or more
Obstacle
300mm
or more
Floor
Wall
150mm or more
Blowout opening
100mm or more 4000~5000mm 150mm or more
150mm or more
floor
wall
Capacity(Btu/h)
A
B
18K,24K
990
912
36K
1285
1207
48K,60K
1580
1502

Ceiling
Walls
Pattern board
Fig. 3.3.7
12
Installation and Maintenance
※The outlet through which the pipings are
taken out is available in three directions.
※Pipes can be taken out in 3 directions(rear, right
or top).(See fig.3.3.3)
Cut out holes using nippers, etc.
Cut out holes to taken out pipes along the cutoff line
on the rear cover.
Cut out the top face cover aligning to the piping
position.
When taking pipe out to right-hand side, cut out a
hole along the groove at the inside of the side
panel.
After installing pipes and wires,seal clearances
around pipes and wires with putty,etc. to shut off
dust.
Make sure to install the covers at rear and top in
order to protect the inside of unit from intrusion of
dust or protect wires from damages by sharp edges.
When taking them out to the right-hand side,
remove burrs or sharp edges from the cutout.
Top outlet
Right outlet
Rear outlet
Drain outlet
(rear right)
Drain outlet
(rear left)
Drain outlet
(right)
Drain outlet
(left)
Fig. 3.3.3
Fig. 3.3.4
Fig. 3.3.5
unit:mm
(1)Remove the air return grille.
Slide stoppers (4 places) of the catches, then
remove the screws(4 or 6 places).
3.3.3Indoor unit preparation
(2)Remove side panel.
Remove the screw and detach the side panel by
sliding it toward the direction indicated by the
arrow mark.
Fig. 3.3.6 Suspension bolts and nuts
(3) Remove the hanging plate.
Remove the screw and then fixing bolts.
i
Ceiling type installation
(1)Select the suspension bolt locations and the pipe
hole location.
.Use enclosed paper pattern as a reference, and drill
the holes for the suspension bolts and pipe.
Note:Decide the locations based on the direct
measurements.
ii.Once the locations are properly placed, the paper
pattern can be removed.
(2)Install the suspension bolts in place.
Side panel
Side panel screw
(1 each on the left and right)(M4)
Hanging plate
Hanging plate
fixing bolts(M8)
Hanging plate
screw (M5)
3.3.4Install the indoor unit
Screw
Screw

(3) Fix with 4 suspension bolts,which can endure
load of 530N.
(4) Check the measurements the length of the
suspension bolts.
(5) Fasten the hanging plate onto the suspension
bolts.
(6) Install the unit to the hanging plate.
i.Slide the unit from front side to get it hanged on the
hanging plate with bolts.
ii.Fasten the four fixing bolts(M8:2 each on the left
and right sides)firmly.
iii.Fasten the two screws(M5:1 each on the left and
right sides.)
Fig. 3.3.9
Fig. 3.3.10
Fig. 3.3.8
Installation and Maintenance
13
·
·
Place the left hanger bracket on the nuts and
washers of the suspension bolts.
Make sure that the left hanger bracket has been
fixed on the nuts and washers securely, install the
right hanger bracket suspension hook on the nuts
and washers.
(When installing the indoor unit, you can slightly
remove the suspension bolts.)
i
Floor standing type installation
(1)Select the suspension bolt locations and the pipe
hole location.
.Use enclosed paper pattern as a reference, and drill
the holes for the suspension bolts and pipe.
Note:
Decide the locations based on the direct
measurements.
ii.After the locations are properly placed, the paper
pattern can be removed.
(2)Install the suspension bolts in place.
Wall
Floor
Pattern board
(3) Fix with 4 suspension bolts, and fasten the four
fixing bolts(M8:2 each on the left and right sides)
firmly.
(4)Fasten the two screws of Air Intake Grille(M5:1
each on the left and right sides).
3.3.5 The horizon adjustment of the indoor unit
(1) Make sure that the hanger bracket is fixed by the
nut and the washer.
(2) Adjust the height of the unit.
(3) Check the unit is horizontally level.
*To ensure smooth drain flow, install the unit with a
descending slope(0-3mm) toward the drain outlet.
(4) After the adjustment, tighten the nut and swear the
thread locker on the suspension to prevent the nuts
from loosening.
During the installation, please cover the unit with the
plastic cloth to keep it clean.
CAUTION
Hanging plate
Hanging plate
fixing bolts(M8)
Hanging plate
screw (M5)
Ceiling
Hanging plate
25mm or more
45mm or less
Suspension bolt

4. Refrigerant Pipe
Use the R410A refrigerant. When carrying on the
leakage check and test, do not mix in the oxygen, the
acetylene and flammable and the virulent gas, for
these gases are quite dangerous, and may possibly
cause explosion. It is suggested that the compressed
air, the nitrogen or the refrigerant be used to perform
these experiments.
4.1 The Pipe Material
(1) Prepare the copper pipe on the spot.
(2) Choose dustless, non-humid, clean copper pipe.
Before installing the pipe, use nitrogen or dry air to
blow away the tube dust and impurity.
(3)Choose the copper pipe according to Fig. 4.2.
4.2 The Connection of the Pipe
(1) The connection positions of the pipe are shown in
Fig. 4.1 and Fig. 4.2.
unit:(mm)
14
Fig. 4.1 The connection positions of the tube
Fig. 4.2 The pipe diameter
Capacity
(Btu/h) Gas pipe Liquid pipe
48K/60K φ19.05 φ9.52
(2) As shown in Fig. 4.3, screw up the nuts with 2 spanners.
Fig. 4.3 Screw up the nut torque
(3) After finishing connecting the refrigerant pipes, keep
it warm with the insulation material.
φ6.35mm
φ9.52mm
φ12.7mm
φ15.88mm
φ19.05mm
Tube size
20
40
60
80
100
Torque（N.m）
Fig. 4.4 Piping insulation procedure
Clamp(attached) Insulation (attached)
Refrigerant pipe
(field supplied)
Side of the
indoor unit
Insulation
( )field supplied
Installation and Maintenance
DANGER
·The pipe go through the hole with the seal.
Protected with the tape or plug.
Do not put the pipes on the
floor directly.
CAUTION
·Do not put the pipes on the floor directly.
24K/36K φ15.88 φ9.52
Drain pipe
18K φ12.7φ6.35
De25
De25
De25
The pipe can be connected from three different
directions.(rear, right, top)
when the pipe is routed through the back.
If the bracket is removed, piping work will become
easy.
After piping, reinstall the removed branket.
When the pipe is routed through the back.
Cut the removed top cover, and install to the rear
panel instead of rear cover.
Gas piping
Liquid piping
Drain piping
(right)
Drain piping
(left)

15
5. Drain piping
Install the drain piping·
·
·
·
Make sure the drain works properly.
The diameter of drain pipe connection hole should
be same as that of the drain pipe.
Keep the drain pipe short and sloping down wards at
a gradient of at least 1/100 to prevent air pockets from
forming.
Refrigerant pipes
Drain pipe connection hole
(external straight pipe thread)
Water accumulating in the drain piping can cause
the drain to clog.
Refrigerant
pipes
Bucket
Installation and Maintenance
CAUTION
CAUTION
·
·
·
·
·
·
To keep the drain tube from sagging, space hanging
wires every 1 to 1.5 m.
Use the drain hose and the clamp. Insert the drain
hose fully into the drain socket and firmly tighten the
drain hose and warm-keeping material with the clamp.
The two areas below should be insulated because
condensation may form there causing water to leak.
Drain piping passing indoors
Drain sockets.
Referring the figure below, insulate the drain socket
and drain hose using the included large sealing pad.
Drain piping connections
·
·
·
·
·
·
Do not connect the drain directly to sewage pipes that
smell of ammonia. The ammonia in the sewage might
enter the indoor unit through the drain pipes and corrode
the heat exchanger.
Do not twist or bend the drain hose, so that excessive
force is not applied to it.
This type of treatment may cause leaking.
After piping work is finished, check drainage flows
smoothly.
Gradually insert approximately 1000 cc of water into
the drain pan to check drainage in the manner described
below.
Gradually pour approximately 1000 cc of water from
the outlet hole into the drain pan to check drainage.
Check the drainage.
Drain hose
Sealing material Sealing material
INDOOR
UNIT INDOOR
UNIT

may result in accident, for example shock.
(1) Remove the screws on the control box.
(2) Connect the power cord and earth wire to the main terminal.
(3) The remote control wire to the subsidiary terminal box according to electric wiring diagram.
(4) Connect the power supply of the indoor and outdoor units to the main terminal.
(5) Tie the wire in the control box with the clamp tightly.
(6) After finishing the wiring, seal the wiring hole with the sealing material( with the lid) to prevent the
condensed water and insects entering.
·If the fuses burn up, please call the service agency to instead it. Please do not instead by yourself, or else
16
Installation and Maintenance
WARNING
CAUTION
6. Electrical wiring
7. Attaching the air return grille
·When clamping the wiring, use the included clamping material as shown in the FIG.6.1 to prevent outside
pressure being exerted on the wiring connections and clamp firmly.
·
·
When doing the wiring, make sure the wiring is neat and does not cause the control box lid to stick up, then
close the cover firmly. When attaching the control lid, make sure you do not pinch any wires.
Outside the machine, separate the weak wiring(remote controller and transmission wiring) and strong
wiring(earth and power supply wiring) at least 50 mm so that they do not pass through the same place
together. Proximity may cause electrical interference. Malfunction, and breakage.
·The air return grille must be attached when electric cabling work is completed.
(1) Fix the air return grille onto the indoor unit with screws supplied as accessories(4 pieces).
(2) Close the air return grille.
This completes the unit installation work.

17
Installation and Maintenance
8. The Installation of the Outdoor Unit
Avoid
Direct sunlight
Near Heat Source/ventilation fan
Container With Flammable materials
Thick Oil fog
Wet Or Uneven place
Aisle Or sideway
8.1 Installation sites
Pl
Place it in an area with good ventilation.
Have desired space for air inlet, outlet and
maintenance. (Figure 8.1)
2
Make a strong base(10X40cm board made of
concrete or alike). The appliance should be placed
not less than 10 cm high to avoid being wet or
corroded. Otherwise, it may cause damage to the
appliance or reduce its life time. (Figure 8.2)
Fix the base with hook bolts or alike to reduce
vibration and noise.
ace it in cool temperature.
You should
If the total tube length is between 5m and 50m (Max.
length), an additional refrigerant can be added. It's not
necessary to add compressor oil.（Figure 8.3）
Obstacle
Top obstacle
Air outlet
2m 2m
Ground
Min.10cm
Air inlet
Min. 10cm
Min.
5cm
Air outlet
Air inlet
Min.
35cm
Min.50cm
Fig. 8.1
Concrete base or alike
Min.10cm
Setscrew
(at least 4)
About 40cm
About 10cm
Fig.8.2
8.2 Installation of the outdoor unit
Firstly select the installation site and fix the outdoor
unit. If it needs to be fixed onto the wall, make sure
that the wall and the supporting rack is strong enough
to hold the weight of the appliance.
Release the setscrews of the electric cover,
remove the electric cover(If the valve cover is
there either, please release it. )
Connect the indoor unit wiring to the outdoor unit
panel according to the electric wiring diagrams.
Be sure to make each wire allowing 10cm longer
than the required length for wiring.
Ground the unit following local electrical
regulations.
Check the wiring with the wiring diagrams and
make sure it's well connected. Fix the wiring with
clips and reinstall the electric cover.
Wiring instruction for outdoor unit
Fig.8.3
Indoor unit Tube length L
Height difference H
Outdoor unit
30(m) 15(m) 15(g/m)
30(m) 20(m) 35(g/m)
50(m) 30(m) 35(g/m)
Max. Tube
length(L)
Model
DC-INVERTER type
18K
24K/36K
48K/ 60K
Max. Height
difference(H)
Add.
Refrigerant
(exceed 5m)