Panasonic CS-E12RB4UW, CS-E18RB4UW Installation Manual v2

Panasonic Corporation 2015

Order No: PAPAMY1503095CE

Air Conditioner

Indoor Unit Outdoor Unit CS-E12RB4UW CS-E18RB4UW

CU-E12RB4U CU-E18RB4U

Destination USA

Canada OPEN

CLOSE

CLOSE OPEN

POWER TIMER

AIRSWINGOFF/ON

MODE

POWERFUL/ QUIET

T E M P

O FF/ON

TIMER SET

CANCEL

ON

O FF

1 2 3

AIR SWING

FAN SPEED

SET CHECK CLOCK RESET

AC RC

FAN SPEED AIR SWING

AUTO HEAT COOL DRY FAN

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

PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.

29

11. Installation Instruction

11.1 Indoor Unit

11.1.1 Selecting the Location for the Indoor Unit Provide a check port on the piping side ceiling for repair and maintenance.

Install the indoor unit once the following conditions are satisfied and after receiving the customer approval. 1 The indoor unit must be within a maintenance space. 2 The indoor unit must be free from any obstacles in path of the air inlet and outlet, and must allow spreading

of air throughout the room. 3 Mount with the lowest moving parts at least 8 ft (2.4 m) above floor or grade level.

* If the height from the floor to ceiling exceeds three meters, air flow distribution deteriorates and the effect is decreased.

4 The installation position must be able to support a load four times the indoor unit weight. 5 The indoor unit must be away from heat and steam sources, but avoid installing it near an entrance. 6 The indoor unit must allow easy draining. 7 The indoor unit must allow easy connection to the outdoor unit. 8 Place the indoor unit according to the height from the ceiling shown in the illustration below. 9 The indoor unit must be from at least 9.8 ft (3 m) away from any noise-generating equipment. The electrical

wiring must be shielded with a steel conduit. 10 If the power supply is subject to noise generation, add a suppressor. 11 Do not install the indoor unit in a laundry. Electric shocks may result.

Note Thoroughly study the following installation locations

1 In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere to the turbo fan, the fin of the heat exchanger and the drain pump, resulting in heat exchange reduction, spraying, dispersing of water drops, drain pump malfunction, etc. In these cases, take the following actions: o Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient capacity so

that it draws oily steam which should not flow into the suction of the air conditioner. o Make enough distance from the cooking room to install the air conditioner in such place where it may not

suck in oily steam.

2 Avoid installing the air conditioner in such circumstances where cutting oil mist or iron powder exist especially in factories, etc.

3 Avoid places where inflammable gas is generated, flows-in, contaminated, or leaked.

4 Avoid places where sulphurous acid gas or corrosive gas can be generated.

5 Avoid places near high frequency generators.

Model Name Height in the ceiling

E12*** E18***

11" (280 mm) or more

(Unit: inch (mm))

Obstacles Floor

39 3/8" (1000) or more

19 11/16" (500) or more

96 "

11 8

1 / 8"

(2 40

0

30 00

)

11 13

/1 6"

(3 00

) or

le ss

19 11/16" (500) or more

19 11/16" (500) or more

(Unit: inch (mm))

Air conditioner

Cooking table

Ensure ample

collection hood with sufficient capacity.

distance

Use the ventilation fan for smoke- collection hood with sufficient capacity.

30

11.1.2 Installation of Indoor Unit This air conditioner uses a drain up motor. Horizontally install the unit using a level gauge. CEILING OPENING DIMENSIONS AND HANGING BOLT LOCATION

The paper model for installation expand or shrink according to temperature and humidity. Check on dimensions before using it.

Caution During the installation, care must be taken not to damage electric wires.

The dimensions of the paper model for installation are the same as those of the ceiling opening dimensions. Be sure to discuss the ceiling drilling work with the workers concerned.

POSITIONS OF AIR CONDITIONER BODY AND CEILING SURFACE

11.1.3 Refrigerant Piping Refrigerant is charged to the outdoor unit. For details, see the manual for installation work of outdoor unit. (Additional charging, etc.)

1 Brazing for piping. a. Execute brazing before tightening the flare

nut. b. Brazing must be executed while blowing

nitrogen gas. (This prevents generation of oxidized scale in copper pipe.)

2 When there is a lot of brazings for long piping, install a strainer midway of the piping. (The strainer is locally supplied.)

3 Use clean copper pipe with inner wall surface free from mist and dust. Blow nitrogen gas or air to blow off dust in the pipe before connection.

4 Form the piping according to its routing. Avoid bending and bending back the same piping point more than three times. (This will result in hardening of the pipe).

5 After deforming the pipe, align centers of the union fitting of the indoor unit and the piping, and tighten them firmly with wrenches.

6 Connect pipe to the service valve or ball valve which is located below the outdoor unit.

7 After completed the piping connection, be sure to check if there is gas leakage in indoor and outdoor connection.

Drain pipe 25 9/16" (650) (Ceiling opening)

(Hanging bolt)

(Unit: inch (mm))

25 9 /

16 "

(6 50

) (C

ei lin

g op

en in

g)

20 7 /

8" (5

30 )

(H an

gi ng

bo lt)

22 13

/1 6"

(5 80

) (U

ni ts

iz e)

22 13/16" (580) (Unit size)

Refrigerant pipe

20 7/8" (530) 2 3/8" (60)

2 3 /

8" (6

0)

2 3/8" (60)

2 3/8" (60)

Hanging bolt (W3/8 or M10) Keep the length of the bolt from

the bracket to 1 9/16" (40 mm)

Flat washer for M10 (accessory)

Nut (W3/8 or M10)

M10 Spring washer Air conditioner bodyCeiling

4 7 /1

6 "

(1 13

m m

)

11 1 /8 "

(2 82

m m

)

11 1 /

2" (2

92 m

m )

an d

ab ov

e

Adjust to the same height Nut (W3/8 or M10)

Paper model for installation Set screw for paper

model (4 pieces)

Open the ceiling board along the outer edge of the paper model.

Flat washer for M10 (accessory)

Warning Tighten the nut and bolt to prevent unit from falling

Con rm the red mark of the union (thin side) is always at lower direction after connecting piping.

Union

Red mark

31

Vacuum drying After completing the piping connection, execute vacuum drying for the connecting piping and the indoor unit. The vacuum drying must be carried out by using the service ports of both the liquid and gas side valves.

CAUTION Use two wrenches and tighten with regular torque.

Do not overtighten, overtightening may cause gas leakage.

Piping size Torque 1/4" (6.35 mm) 13.3 Ibfft [18 Nm (1.8 kgfm)] 3/8" (9.52 mm) 31.0 Ibfft [42 Nm (4.3 kgfm)] 1/2" (12.7 mm) 40.6 Ibfft [55 Nm (5.6 kgfm)]

5/8" (15.88 mm) 47.9 Ibfft [65 Nm (6.6 kgfm)] 3/4" (19.05 mm) 73.8 Ibfft [100 Nm (10.2 kgfm)]

11.1.4 Indoor Unit Drain Piping During drain piping connection, be careful not to exert extra force on the drain port at the indoor unit. The outside diameter of the drain connection at the indoor unit is 1-1/4" (32 mm). Piping material: Polyvinyl chloride pipe VP-25 and pipe fittings.

Be sure to perform heat insulation on the drain piping. Heat insulation material: Polyethylene foam with thickness more than 5/16" (8 mm) (local supply).

Drain piping must have down-slope (1/50 to 1/100); be sure not to provide up-and-down slope to prevent reversal flow. Be sure to check no air trap on drain hose and to ensure smooth water flow and no abnormal sound.

The height of drain may be possible up to 29-1/2" (750 mm).

When drain set piping, install as shown in the figure below.

Drain Test The air conditioner uses a drain up motor to drain water. Use the following procedure to test the drain up motor operation.

Connect the main drain pipe to exterior and leave it provisionally until the test comes to an end. Feed water to the flexible drain hose and check the piping for leakage. Be sure to check the drain up motor for normal operating and noise when electric wiring is complete. When the test is complete, connect the flexible drain hose to the drain port. Pour about 600-700cc of water in the drain pan of the indoor unit. (Pour from the position specified in the drawing by using a water supply bottle or other suitable tool.) Press the drain pump test run on PCB to start the drain motor, and verify water drainage. (The drain motor will automatically stop after operating for about five minutes.)

Upward routing

Pipe clamp

Indoor unit

Trap

Down-slope

Down-slope Upward-slope

Air Trap No Air Trap

Down-slope (1/50 ~ 1/100) Drain port

29 1 /

2" (7

50 m

m )

or le

ss

Elbow

ElbowIndoor unit

Apply the head when connecting with the confluence pipe. (about 3 15/16" (100 mm))

Indoor unit

Down-slope (1/50 ~ 1/100) Use VP30 or more confluence

Feed water Drain hose

Drain up motor

Glue the joint

Drain hose connection Use the clip (accessory)

Main drain pipe

Drain port

Drain pan Air outlet vent

32

11.1.5 Heat Insulation Be sure to perform heat insulation on the drain, liquid and gas piping. Imperfection in heat insulation work leads to water leakage.

1 Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 248F (120C)).

2 Precautions in high humidity circumstance. This air conditioner has been tested according to the JIS Standard Conditions with Mist and have been confirmed that there are no faults. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than 73.4F (23C)), water drops are liable to fall. In this case, add heat insulation material according to the following procedure: o Heat insulation material to be prepared Adiabatic glass wool with thickness 3/8" to 1 3/16" (10 to

20 mm). o Stick glass wool on all air conditioners that are located in ceiling atmosphere. o In addition to the normal heat insulation (thickness: more than 5/16" (8 mm) for refrigerant piping (gas

piping: thick piping) and drain piping, add a further of 3/8" (10 mm) to 1 3/16" (30 mm) thickness material.

Wall seal When the outdoor unit is installed on a higher position than the indoor unit, install the trap so as not to instill rain water into the wall by transmitting in piping. Stuff the space among piping, the electric wire, and- the drain hose with Putty and seal the penetration wall hole. Make sure that rain water do not instill into the wall.

Overlap with heat insulator for piping.

Indoor unit

Band (Accessory)

Heat insulator for piping (Local supply)

Heat insulator (Accessory)

Hose clip (Accessory)

Heat insulator (Local supply) (The thickness must be at least 5/16" (8 mm).)

Flexible hose with heat insula