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–22–
Make sure that the screws of the terminal are free from looseness.
WARNING
The power cord connected to the outdoor unit should be complied
with the following specifications (Rubber insulation, type H05RN-F
approved by HAR or SAA).
with the following specifications (Rubber insulation, type H05RN-F
approved by HAR or SAA).
The connecting cable connected to the indoor and outdoor unit should
be complied with the following specifications (Rubber insulation,
type H05RN-F approved by HAR or SAA).
be complied with the following specifications (Rubber insulation,
type H05RN-F approved by HAR or SAA).
CAUTION
8.5mm
20mm
GN/YL
7.5mm
20mm
GN/YL
[Air inlet side view]
If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer or its service agent.
NORMAL
CROSS-SECTIONAL
AREA 0.75mm
CROSS-SECTIONAL
AREA 0.75mm
2
(36K)
1.25mm
2
(48K, 60K)
NORMAL
CROSS-SECTIONAL
AREA 2.5mm
CROSS-SECTIONAL
AREA 2.5mm
2
(36K)
3.5mm
2
(48K, 60K)
Terminal Block of Outdoor Unit
1(L) 2(N) 3
4
5
1(L) 2(N) 3
4
5
Terminal Block of Outdoor Unit
1(L) 2(N) 3
4
5
Terminal Block of Indoor Unit
Terminal Block of Indoor Unit
Control box cover
Indoor
power cord
Remote
controller
cord
Control box cover
fitting screw(2 units)
fitting screw(2 units)
POWER INPUT
R
S
T
N
POWER INPUT
R
S
T
N
1(L) 2(N) 3
4
5
Terminal Block of Outdoor Unit
1(L) 2(N) 3
4
5
1(L) 2(N) 3
4
5
Terminal Block of Outdoor Unit
1(L) 2(N) 3
4
5
Terminal Block of Indoor Unit
Terminal Block of Indoor Unit
POWER INPUT
1(L)
2(N)
POWER INPUT
1(L)
2(N)
1(L) 2(N) 3
4
5
• 3 Phase
NORMAL
CROSS-SECTIONAL
AREA 4.0mm
CROSS-SECTIONAL
AREA 4.0mm
2
(36K)
6.0mm
2
(48K)
8.0mm
2
(60K)
• 1 Phase
Heat Pump Model
Cooling Model
Heat Pump Model
• 3 Phase
• 1 Phase
Cooling Model
5. Wiring Connection
• Open the control box cover and connect the Remote controller cord and Indoor power wires.
–23–
1. All wiring must comply with LOCAL REGULATIONS.
2. Select a power source that is capable of supplying the current required by the air conditioner.
3. Feed the power source to the unit via a distribution switch board designed for this purpose.
4. The terminal screws inside the control box may be loose due to vibration during transport.
2. Select a power source that is capable of supplying the current required by the air conditioner.
3. Feed the power source to the unit via a distribution switch board designed for this purpose.
4. The terminal screws inside the control box may be loose due to vibration during transport.
Check the screws for loose connection.
(Running the air conditioner with loose connection can overload and damage electrical components.)
(Running the air conditioner with loose connection can overload and damage electrical components.)
5. Always ground the air conditioner with a grounding wire and connector to meet the LOCAL REGULATION.
Main power source
Switch box
Refrigerant pipe
Circuit Breaker
Use circuit breaker or time delay fuse.
ELECTRICAL WIRING
CONNECTING THE CABLE TO OUTDOOR UNIT
1. Remove the Cover control from the unit by loosening a screw.
Connect the wires to the terminals on the control board individually as following.
2. Secure the cable onto the control board with the holder (clamper).
3. Refix the cover control to the original position with the screw.
4. Use a recongnized circuit breaker 20A(36K, 48K) between the power source and the unit. A disconnection
3. Refix the cover control to the original position with the screw.
4. Use a recongnized circuit breaker 20A(36K, 48K) between the power source and the unit. A disconnection
device to adequately disconnect all supply lines must be fitted.
Terminal block
Cord Clamper
Cover control
Power supply
cord
cord
Outdoor unit (48K)
3øPower
Terminal block
Cord Clamper
Cover control
Power supply
cord
cord
Outdoor unit (36K)
3øPower
–24–
• Preparation of Piping
6. Connecting Pipes to the Indoor Unit
Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure.
1) Cut the pipes and the cable.
■
Use the accessory piping kit or the pipes purchased
locally.
locally.
■
Measure the distance between the indoor and the out-
door unit.
door unit.
■
Cut the pipes a little longer than measured distance.
■
Cut the cable 1.5m longer than the pipe length.
2) Burrs removal
■
Completely remove all burrs from the cut cross section
of pipe/tube.
of pipe/tube.
■
Put the end of the copper tube/pipe to downward direc-
tion as you remove burrs in order to avoid to let burrs
drop in the tubing.
tion as you remove burrs in order to avoid to let burrs
drop in the tubing.
3) Putting nut on
■
Remove flare nuts attached to indoor and outdoor units,
than put them on pipe/tube having completed burr
removal.
(Not possible to put them on after flaring work)
than put them on pipe/tube having completed burr
removal.
(Not possible to put them on after flaring work)
4) Flaring work
■
Carry out flaring work using flaring tool as shown below.
Firmly hold copper tube in a bar(or die) as indicated
dimension in the table above.
dimension in the table above.
5) Check
■
Compare the flared work with figure below.
■
If flare is noted to be defective, cut off the flared section
and do flaring work again.
and do flaring work again.
Copper
tube
90
°
Slanted Uneven Rough
Pipe
Reamer
Point down
Flare nut
Copper tube
Bar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Inclined
Inside is shining without scratches
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
Outside diameter
A
mm
inch
mm
Ø9.52
3/8
0.5~0.8
Ø15.88
5/8
0.8~1.0
Ø19.05
3/4
0.8~1.0
–25–
1. Form the piping according to its routing. Avoid bend-
ing and bending back the same piping point more
than three times. (This will result in hardening the
pipe.)
than three times. (This will result in hardening the
pipe.)
2. After deforming the piping, align centers of the union
fitting of the indoor unit and the piping, and tighten
them firmly with wrenches.
them firmly with wrenches.
3. Connect pipe to the service valve or ball valve which
is located below the outdoor unit.
4. After completing the piping connection, be sure to
check if there is gas leakage in indoor and outdoor
connection.
connection.
After completing the piping connection, execute vacuum
drying for the connecting piping and the indoor unit.
The vacuum drying must be carried out using the ser-
vice ports of both the liquid and gas side valves.
drying for the connecting piping and the indoor unit.
The vacuum drying must be carried out using the ser-
vice ports of both the liquid and gas side valves.
Use two wrenches and tighten with regular torque.
Outdoor
unit
Liquid side
Flare connection
Flare connection
Gas side
Indoor
unit
Union
Piping Connection
Vacuum drying
CAUTION
Flare nut fastening torque
Ø6.35mm
1.8 kg.m
Ø9.52mm
4.0 kg.m
Ø12.7mm
5.5 kg.m
Ø15.88mm
6.6 kg.m
Ø19.05mm
6.6 kg.m
Model
Liquid side piping
Gas side piping
36K Btu/h
Ø 9.52mm
Ø15.88mm
48K But/h
Ø 9.52mm
Ø19.05mm
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