Panasonic CS-LE9NKD User manual

© Panasonic Appliances Air-Conditioning (Guangzhou)
Co.,Ltd (PAPAGZ )2012. Unauthorized copying and
distribution is a violation of law.
Order No: PAPAGZ120408CE
Indoor Unit Outdoor Unit
CS-LE9NKD
CS-LE12NKD CU-LE9NKD CU-LE12NKD
TABLE OF CONTENTS
1. Safety Precautions.............................................3
2. Specification.......................................................5
3. Features ..............................................................7
4. Location of Controls and Components............8
4.1 Indoor Unit......................................................8
4.2 Outdoor Unit...................................................8
4.3 Remote Control..............................................8
5. Dimensions.........................................................9
5.1 Indoor Unit......................................................9
5.2 Outdoor Unit.................................................10
6. Refrigeration Cycle Diagram...........................11
7. Block Diagram ..................................................12
8. Block Diagram ..................................................13
9. Printed Circuit Board.......................................15
9.1 Indoor Unit....................................................15
10. Installation Instruction.....................................16
10.1 Select the Best Location ..............................16
10.2 Indoor Unit....................................................17
10.3 Outdoor Unit.................................................19
11. Service Mode....................................................22
11.1 Auto OFF/ON Button....................................22
11.2 Select Remote Control Transmission Code.22
11.3 Operate and Display of Remote Control......23
12. Operation Control.............................................25
12.1 Basic Function..............................................25
12.2 Indoor Fan Motor Operation.........................27
12.3 Outdoor Fan Motor Operation......................28
13. Protection control ............................................31
13.1 Protection Control for All Operations ...........31
13.2 Protection Control For Cooling and Soft Dry
Operation...............................................................33
13.3 Indoor Piping Air Temperature Control
(Heating)................................................................34
14. Troubleshooting Guide....................................36
14.1 Refrigeration cycle system...........................36
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the products dealt with in this service information by anyone else could result in serious injury or death.
WARNING

2
14.2
Breakdown Self Diagnosis Function ............37
15. Technical Data ..................................................39
15.1 Operation Characteristics.............................39
16. Disassembly and Assembly Instructions ......47
17. Exploded View and Replacement Pars List...51
17.1 Indoor Unit....................................................51
17.2 Outdoor Unit.................................................53

3
CAUTION
WARNING
WARNING
1. Safety Precautions
•Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
•Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the
power plug and main circuit for the model installed.
•The caution items stated here must be followed because these important contents are related to safety. The
meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instruction
will cause harm or damage, and the seriousness is classified by the following indications.
This indication shows the possibility of causing death or serious injury
This indication shows the possibility of causing injury or damage to properties.
•The items to be followed are classified by the symbols:
•Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation,
care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for
future reference.
1. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building,
child may climb up to outdoor unit and cross over the handrail and causing accident.
2. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single
outlet with other appliances. Poor contact, poor insulation or over current will cause electrical shock or fire
3. Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may
happen.
4. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
5. Do not sit or step on the unit, you may fall down accidentally.
6. Keep plastic bag (package material) away from small children, it may cling to nose and mouth and prevent breathing.
7. When install or relocate air conditioner, do not let any substance other than the specified refrigerant, eg. A
ir etc. mix into
refrigeration cycle (piping) . Mixing of air etc. will cause abnormal high pressure in refrigerant cycle and result in
explosion, injury etc.
8. • For R410A models, when connecting the piping, do not use any existing (R22) pipes and flare nuts.
Using such same
may cause abnormally high pressure in the refrigeration cycle (pi
ping), and possibly result in explosion and injury. Use
only R410A materials.
• Thickness or copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm
• It is desirable that the amount of residual oil is less than 40 mg/10 m.
9. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage,
electrical shock or fire.
10. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical
shock or fire.
11. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water
leakage, fire or electrical shock.
12. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or
installation is not properly done, the set will drop and cause injury.
13. For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent
circuit and single outlet must be used. If
electrical circuit capacity is not enough or defect found in electrical work, it will
cause electrical shock or fire.
14. Do not use joint cable for indoor/outdoor connection cable. Use the specified Indoor/Outdoor connection cable, refer to
installation instructions CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor / outdoor
connection. Clamp the cable so that no external force will be acted on the terminal. If connection or fixing is not
perfect, it will cause heat up or fire at the connection.
15. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed
perfectly, it will cause fire or electrical shock.
16. This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual
Current Device (RCD). Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation
breakdown.
Symbol with white background denotes item that is PROHIBITED from doing.
Symbol with dark background denotes item that must be carried out.

4
CAUTION
17. During installation, install the refrigerant piping properly before running the compressor. Operation of compressor
without fixing refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in
refrigeration cycle and result in explosion, injury etc.
18. During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration
piping while compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in
refrigeration cycle and result in explosion, injury etc.
19. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long
period, the flare may break and cause refrigerant gas leakage.
20. After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the
refrigerant contacts with fire.
21. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with
fire.
22. Recommended installation height for indoor unit shall be at least 2.5 m.
23. The appliance shall be installed in accordance with national wiring regulations.
24. Indoor unit must be installed close against the wall.
24. All-pole disconnection incorporated in the fixed wiring is to be provided.
25. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning
rod and telephone. Otherwise, it may cause electrical shock in case equipment breakdown or insulation breakdown.
1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at
surrounding of the unit, it may cause fire.
2. Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts.
Take care of the liquid refrigerant, it may cause frostbite.
3. Do not install this appliance in a laundry room or other location where water may drip from the celling, etc.
4. Thermal fuse specification for indoor unit: 250V 3.15A T3.15AL; outdoor unit: 250V 3.15A T3.15AL.
5. Do not touch outdoor unit air inlet and aluminums fin. It may cause injury.
6. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room
and damage the furniture.
7. Select an installation location which is easy for maintenance.
8. Power supply connection to the air conditioner.
Connect the power supply cord of the air conditioner to the mains using one of the following methods.
Power supply point should be in easily accessible place for power disconnection in case of emergency.
In some countries, permanent connection of this air conditioner to the power supply is prohibited.
1) Power supply connection to the receptacle using a power plug.
Use an approved 15/16A power plug with earth pin for the connection to the receptacle.
2) Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker for
the permanent connection. It must be a double pole switch with a minimum 3.5 mm contact gap.
9. Service and Installation work.
It may need two people to carry out the installation work.

5
2. Specification
Indoor CS-LE9NKD CS-LE12NKD
Model Outdoor CU-LE9NKD CU-LE12NKD
Phase, Hz Single, 50 Single, 50
Power Supply V 220 220
Min Rate Max Min Rate Max
kW 0.90 2.50 3.00 0.900 3.300 3.900
BTU/h 3070 8530 10230 3070 11250 13300
Capacity kcal/h 770 2150 2580 770 2840 3350
Running Current A - 3.70 - - 5.00 -
Input Power W 190 760 1000 200 1020 1300
W/W 4.73 3.28 3.00 4.50 3.23 3.00
EER BTU/hW 16.15 11.22 10.23 15.35 11.02 10.23
Power Factor % 93 92
dB-
A (H / L /
QLo) Hi: 40 Lo: 27 QLo: 22 Hi: 42 Lo: 30 QLo: 22
Indoor Noise Power Level 56 58
dB-A (H / L ) Hi: 47 Lo: - Hi: 48 Lo: -
COOLING
Outdoor Noise Power Level 63 64
kW 0.90 3.20 4.20 0.90 4.00 5.00
BTU/h 3070 10900 14320 3070 13640 17050
Capacity kcal/h 770 2750 3610 770 3440 4300
Running Current A - 4.30 - - 5.20 -
Input Power W 190 880 1200 200 1060 1420
W/W 4.73 3.63 3.50 4.50 3.77 3.52
COP BTU/hW 16.15 12.38 11.93 15.35 12.86 12.00
Power Factor % 93 92
dB-
A (H / L /
QLo) Hi: 40 Lo: 27 QLo: 23 Hi: 42 Lo: 33 QLo: 25 Indoor Noise Power Level 56 58
dB-A (H / L ) Hi: 48 Lo: - Hi: 50 Lo: -
HEATING
Outdoor Noise Power Level 64 66
Max Current (A) / Max Input Power (W) 6.50 / 1.350k 8.80 / 1.600k
Starting Current (A) 4.00 5.40
Type Hermetic Motor Hermetic Motor
Motor Type BRUSHLESS (6 poles) BRUSHLESS (6 poles)
Compressor
Output Power W 750 900
Type Cross-flow fan Cross-flow fan
Material AS(GF30%) AS(GF30%)
Motor Type AC (4 poles) AC (4 poles)
Input Power W 58.19 61.16
Output Power W 30 30
Q-Lo rpm 580 560
Lo rpm 750 760
Me rpm 910 960
Speed
(COOLING)
Hi rpm 1060 1150
Q-Lo rpm 600 700
Lo rpm 700 850
Me rpm 820 970
Indoor Fan
Speed
(HEATING)
Hi rpm 1020 1100
Type Propeller Propeller
Material PP(GF+PD)30% PP(GF+PD)30%
Motor Type AC (6 poles) AC (6 poles)
Input Power W 60.72 72.60
Output Power W 25 30
Hi(C) rpm 710 800
Outdoor Fan
Speed Hi(H) rpm 690 760
Moisture Removal L/h (Pt/h) 1.4 (2.4) 1.9 (3.3)
Q-Lo m
3
/min (ft
3
/m) 6.6(232) 6.5 (229)
Lo m
3
/min (ft
3
/m) 8.5(300) 8.8 (319)
Indoor Airflow
(COOLING) Me m
3
/min (ft
3
/m) 10.3(364) 11.1 (392)

6
Hi m
3
/min (ft
3
/m) 12.0 (424) 13.3 (470)
Q-Lo m
3
/min (ft
3
/m) 6.8 (239) 8.0 (283)
Lo m
3
/min (ft
3
/m) 7.9 (279) 9.7 (344)
Me m
3
/min (ft
3
/m) 9.2 (326) 11.1 (392)
Indoor Airflow
(HEATING) Hi m
3
/min (ft
3
/m) 11.5 (406) 12.6 (445)
Hi (Cooling) m
3
/min (ft
3
/m) 32.9 (1162) 36.8 (1300)
Outdoor Airflow
Hi (Heating) m
3
/min (ft
3
/m) 32.9 (1162) 36.8 (1300)
Control Device Capillary Tube Capillary Tube
Refrigerant Oil cm
3
FV50S (250) FV50S (320)
Refrigeration
Cycle Refrigerant Type
g (oz) R410A, 640 (22.6) R410A, 690 (24.4)
Height(I/D / O/D)
mm (inch) 283 (11-15/32)
530 (20-55/64)
283 (11-5/32)
624 (24-37/64)
Width (I/D / O/D)
mm (inch) 803 (31-5/8)
720 (28-11/32)
803 (31-5/8)
780 (30-45/64)
Dimension
Depth (I/D / O/D)
mm (inch) 216 (8-1/2) 275 (10-53/64)
216 (8-1/2) 289 (11-3/8)
Weight Net (I/D / O/D) kg (lb) 8.5 (19) 20 (44) 8.5 (19) 24 (53)
Pipe Diameter
(Liquid / Gas) mm (inch) 6.35 (1/4) / 9.52 (3/8) 6.35 (1/4) / 9.52 (3/8)
Standard length m (ft) 5 (16.4) 5 (16.4)
Length range (min – max) m (ft) 3 (9.8) ~ 15 (49.2) 3 (9.8) ~ 15 (49.2)
I/D & O/D Height different m (ft) 5.0 (16.4) 5.0 (16.4)
Additional Gas Amount g/m (oz/ft) 20 (0.2) 20 (0.2)
Piping
Length for Additional Gas m (ft) 7.0 (23.0) 7.0 (23.0)
Inner diameter mm 16 16Drain Hose
Length mm 500 500
Fin Material Pre coated Pre coated
Fin Type Slit Fin Slit Fin
Row x Stage x FPI 2 x 16 x 19 2 x 16 x 19
Indoor
Heat
Exchanger
Size (W x H x L) mm 610 x 336 x 25.4 610 x 336 x 25.4
Fin Material Pre coated Pre coated
Fin Type Slit Fin Slit Fin
Row x Stage x FPI 1 x 24 x 19 1 x 28 x 18
Outdoor
Heat
Exchanger
Size (W x H x D) mm 661 x 504 x 18.19
715 x 588 x 18.19
Material PP-12X13H2 PP-12X13H2
Air Filter Type One-touch One-touch
Power Supply Indoor Indoor
Power Supply Cord A 10A 10A
Thermostat - -
Protection Device - -
COOLING HEATING COOLING HEATING
TEMPERATURE (°C ) DB WB DB WB DB WB DB WB
Maximum 32 23 30 - 32 23 30 -
Indoor Operation Range Minimum 16 11 16 - 16 11 16 -
Maximum 43 26 24 18 43 26 24 18
Outdoor Operation Range Minimum 16 11 -5 -6 16 11 -5 -6
1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19°C Wet Bu lb (66.2°F
Wet Bulb) and outdoor air temperature of 35°C Dry Bulb (95.0°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bu lb).
2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor ai r
temperature of 7°C Dry Bulb (44.6°F Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb).
3. Specifications are subjected to change without prior notice for further improvement.

7
3. Features
•Inverter Technology
oWider output power range
oEnergy saving
oQuick Cooling
oMore precise temperature control
•Long Installation Piping
oCS/CU-LE9/12NKD, long piping up to 15 meters.
•Easy to use remote control
•Quality Improvement
oRandom auto restart after power failure for safety restart operation
oGas leakage protection
oPrevent compressor reverse cycle
oInner protector to protect compressor
•Operation Improvement
oQuiet mode to reduce the indoor unit operating sound
oPowerful mode to reach the desired room temperature quickly
oAUTO COMFORT & ECONAVI operation
o12-hour timer
•Serviceability Improvement
oBreakdown Self Diagnosis Function.

8
4. Location of Controls and Components
4.1 Indoor Unit
4.2 Outdoor Unit
4.3 Remote Control
For normal operation, ERROR RESET and CHECK button is not in use.
Press RESET button to restore the remote control’s default setting.
POWER GREEN
TIMER ORANGE
AUTO COMFORT
GREEN
INDICATOR
ECONAVI GREEN
Front Panel
Horizontal airflow
Direction louver
Air Filter
Vertical airflow
Direction louver
Receiver
Human
activity
sensor
Transmitter
OFF/ON
Fan speed selection
（Quiet Mode included）
Pow
erful mode
Operation mode
Temperature setting
Vertical
Airflow direction adjustment
ECONAVI(
For e
nergy saving
)
AUTO COMFORT
(To maximize comfort)
Timer setting

9
5. Dimensions
5.1 Indoor Unit
Unit
：
：：
：
mm

10
5.2 Outdoor Unit
CU-LE9NKD
Unit: mm
CU-LE12NKD

11
6. Refrigeration Cycle Diagram
CS/CU-LE9NKD, CS/CU- LE12NKD
COOLING
HEATING

12
7. Block Diagram
CS/CU-LE9NKD CS/CU-LE12NKD

13
8. Block Diagram
CS/CU-LE9NKD

14
CS/CU-LE12NKD

15
9. Printed Circuit Board
9.1 Indoor Unit

16
10. Installation Instruction
10.1 Select the Best Location
10.1.1 Indoor Unit
•Do not install the unit in excessive oil fume area such as kitchen,
workshop and etc.
•There should not be any heat source or steam near the unit.
•There should not be any obstacles blocking the air circulation.
•A place where air circulation in the room is good.
•A place where drainage can be easily done.
•A place where noise prevention is taken into consideration.
•Do not install the unit near the door way.
•Ensure the spaces indicated by arrows from the wall, ceiling, fence or
other obstacles.
•Recommended installation height for indoor unit shall be at least 2.5m.
10.1.2 Outdoor Unit
•If an awning is built over the unit to prevent direct sunlight or rain, be
careful that heat radiation from the condenser is not obstructed.
•There should not be any animal or plant which could be affected by
hot air discharged.
•Keep the spaces indicated by arrows from wall, ceiling, fence or other
obstacles.
•Do not place any obstacles which may cause a short circuit of the
discharged air.
•If piping length is over the[piping length for add. Gas], additional
refrigerant should be added as shown in the table below:
Example: If the unit is installed at a 10m distance, the quantity of
additional refrigerant should be 60g.…… (10-7)m x 20g/m = 60g
Piping size
Model Gas
Liquid
Rated
Length
(m)
Max
Elevation
(m)
Min
Piping
Length
(m)
Max
Piping
Length
(m)
Additional
Refrigerant
(g/m)
Piping
length for
add. Gas
(m)
LE9NKD
3/8”
1/4”
5 5 3 15 20 7
LE12NKD
3/8”
1/4”
5 5 3 15 20 7
1
0
.1.3
Indoor/Outdoor Unit Installation
Diagram
*This illustration is for explanation purposes only.
The indoor unit will actually face a different way.

17
W
al
l
Indoor Outdoor
15 mm
Sleeve for
tube ass’y
Approx. 5 - 7 mm
Bushing for tube ass’y
Putty or caulking compound
Ø 70 through hole
10.2 Indoor Unit
10.2.1 How to Fix Installation Plate
The mounting wall is strong and solid enough to prevent it from the vibration.
The centre of installation plate should be at more
than 450 mm at right and left of the wall.
The distance from installation plate edge to
ceiling should more than 120mm.
From installation plate left edge to unit’s left side
is 170 mm.
From installation plate right edge to unit’s right
side is 160 mm.
○
B : For left side piping, piping connection for liquid should be about 105 mm from this line.
: For left side piping, piping connection for gas should be about 154 mm from this line.
1 Mount the installation plate on the wall with 5 screws or more. (If mounting the unit on the wall, consider
using anchor bolts.) Always mount the installation plate horizontally by aligning the marking-off line with
the thread and using a level gauge.
2 Drill the piping plate hole with ø70 mm hole-core drill.
Put measuring tape at position as shown in the diagram above. The hole centre is
obtained by measuring the distance namely 178.5 mm and 161 mm for left and right hole
respectively.
Drill the piping plate hole at either the right or left and the hole should be slightly slanted
to the outdoor side.
10.2.2 To Drill a Hole in the Wall and Install a Sleeve of Piping
1 Insert the piping sleeve to the hole.
2 Fix the busing to the sleeve.
3 Cut the sleeve until it extrudes about 15mm from the wall
4 Finish by sealing the sleeve with putty or caulking compound at the
final stage.
Caution
When the wall is hollow, please be sure to use the sleeve for tube
ass’y to prevent dangers caused by mice biting the connecting
cable.

18
10.2.3 Indoor Unit Installation

19
10.2.4 Connect the Cable to the Indoor Unit
1 The inside and outside connecting cable can be connected without removing the front grille.
2 Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4x
1.5mm
2
flexible cords, type designation 245 IEC 57 or heavier cord.
Ensure the color of wires of outdoor unit and the terminal numbers are the same to the indoor’s
respectively.
Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety
in case of the slipping out of the cord from the anchorage.
Secure the cable onto the board with the holder (clamper).

3 Wire stripping and connecting requirement.
10.3 Outdoor Unit
10.3.1 Install the Outdoor Unit
•After selecting the best location, start installation according to indoor/outdoor unit installation diagram.
1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm).
2 When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand
firmly with bolt or nails.
MODEL A B C D
CU-LE9NKD
474
130.4
16.6
307.9
CU-LE12NKD
570
103.7
13.4
320
10.3.2 Connecting the Piping
10.3.2.1 Connecting the piping to indoor unit
Please make flare after inserting flare nut (locate at joint portion, of tube assembly) onto the copper pipe. (In case of
using long piping)
Connect the piping
•Align the center of piping and sufficiently tighten the flare nut with fingers.
•Further tighten the flare nut with torque wrench in specified torque as stated in the table.

20
Connecting the piping to outdoor unit
Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the
flare nut (locate at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to
the specified torque as stated in the table.
10.3.2.2 Cutting and flaring the piping
1 Please cut using pipe cutter and then remove the burrs.
2 Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping
end down to avoid the metal powder entering the pipe.
3 Please make flare after inserting the flare nut onto the copper pipes.
10.3.3 Evacuation of the equipment
When installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the follwing procidure.
1 Connect a charging hose with a push pin to the low side of a charging set and the service port at the 3-way
valve.
Be sure to connect the end of charging hose with the push pin to the service port.
2 Connect the center hose of the charging set to a vacuum pump with check valve, or vacuum pump and
vacuum pump adaptor.
3 Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0
cmHg (0 Mpa) to -76 cmHg (-0.1 Mpa). Then evacuate the air approximately ten minutes.
4 Close the Low side valve of the charging set and turn off the vacuum pump. Make sure that the needle in the
gauge does not move after approximately five minutes.
Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGEANT GAS LEAKAG
5 Disconnect the charging horse from the vacuum pump and from the service port of the 3-way valve.
6 Tighten the service port caps of the 3-way valve at a torque of 18 N.m with a torque wrench.
7 Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN”
using a hexagonal wrench (4mm).
8 Mount valve caps onto the 2-way and the 3-way valve.
Be sure to check for gas leakage.
Caution : Do not over tighten. Over
tightening causes gas leakage
Piping size Torque
1/4” 18 N• m (1.8kgf•m)
3/8” 42 N• m (4.2kgf•m)
1/2” 55 N• m (5.5kgf•m)
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