Order No: PHAAM1111084C1
Installation Manual
Indoor Unit CS-S9NKUW-1 CS-S12NKUW-1 CS-S18NKU-1 CS-S22NKU-1
Outdoor Unit CU-S9NKU-1 CU-S12NKU-1 CU-S18NKU-1 CU-S22NKU-1
Please file and use this manual together with the service manual for Model No. CU-2S18NBU, Order No. PHAAM1111121C1.
WARNING
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.
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
© Panasonic HA Air-Conditioning (M) Sdn. Bhd. 2011. Unauthorized copying and distribution is a violation of law.
10. Installation Instruction
10.1S9NKUW-1 S12NKUW-1
10.1.1Select the Best Location
10.1.1.1Indoor Unit
xDo not install the unit in excessive oil fume area such as kitchen, workshop and etc.
xThere should not be any heat source or steam near the unit.
xThere should not be any obstacles blocking the air circulation.
xA place where air circulation in the room is good.
xA place where drainage can be easily done.
xA place where noise prevention is taken into consideration.
xDo not install the unit near a door way.
xEnsure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles.
xRecommended installation height for indoor unit shall be at least 8.2 ft.
10.1.1.2Outdoor Unit
xIf an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed.
xThere should not be any animal or plant which could be affected by hot air discharged.
xKeep the spaces indicated by arrows from wall, ceiling, fence or other obstacles.
xDo not place any obstacles which may cause a short circuit of the discharged air.
xIf piping length is over the [piping length for additional gas], additional refrigerant should be added as shown in the table.
Example: For S9NKUW-1
If the unit is installed at 32.8 ft distance, the quantity of additional refrigerant should be 1.64 oz .... (32.8 - 24.6) ft x 0.2 oz/ft = 1.64 oz.
10.1.2Indoor/Outdoor Unit Installation Diagram
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10.1.3Indoor Unit
10.1.3.1How to Fix Installation Plate
The mounting wall shall be strong and solid enough to prevent if from the vibration.
The centre of installation plate should be at more than c at right and left of the wall.
The distance from installation plate edge to ceiling should more than d.
From installation plate left edge to unit’s left side is e.
From installation plate right edge to unit’s right side is f.
B: For left side piping, piping connection for liquid should be about g from this line. : For left side piping, piping connection for gas should be about h from this line.
1Mount the installation plate on the wall with 5 screws or more (at least 5 screws). (If mounting the unit on the concrete wall, consider using anchor bolts.)
o Always mount the installation plate horizontally by aligning the marking-off line with the thread and using a level gauge.
2Drill the piping plate hole with ø2 ¾” hole-core drill.
o Line according to the left and right side of the installation plate. The meeting point of the extended line is the center of the hole. Another method is by putting measuring tape at position as shown in the diagram above. The hole center is obtained by measuring the distance namely 5 1/16” for left and right hole respectively.
o Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor side.
10.1.3.2To Drill a Hole in the Wall and Install a Sleeve of Piping
1Insert the piping sleeve to the hole.
2Fix the bushing to the sleeve.
3Cut the sleeve until it extrudes about 19/32” from the wall.
4Finish by sealing the sleeve with putty or caulking compound at the final stage.
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10.1.3.3Indoor Unit Installation
10.1.3.4For the right rear piping
10.1.3.5For the right bottom piping
10.1.3.6For the embedded piping
(This can be used for left rear piping and bottom piping also.)
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10.1.3.7Connect the Cable to the Indoor Unit
1.The inside and outside connecting cable can be connected without removing the front grille.
2.Unscrew the conduit cover and fix the conduit connector to conduit cover with lock nut, then secure it against chassis.
3.Connecting wire between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor wires minimum AWG16 in accordance with local electric codes.
o Ensure the colour of wires of outdoor unit and terminal number are the same as the indoor's respectively.
This equipment must be properly earthed. o Earth lead wire shall be Yellow/Green
(Y/G) in colour and shall be longer than other lead wires as shown in the figure for electrical safety in case of the slipping.
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10.1.3.8Wire Stripping and connecting requirement
10.1.3.9Cutting and flaring the piping
1Please cut using pipe cutter and then remove the burrs.
2Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe.
3Please make flare after inserting the flare nut onto the copper pipes.
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