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3-1. CONNECTING WIRES FOR OUTDOOR UNIT

1) Remove the service panel.
2) Remove the conduit cover.
3) Attach the conduit connector to conduit cover with lock nut then secure it against unit 

with screws.

4) Connect ground wires of indoor/outdoor unit connecting wire (A) and power supply cord 

(K)  to the TB support.

5) Loosen the terminal screw, and attach indoor/outdoor unit connecting wire (A) from the 

indoor unit correctly on the terminal block. Attach the wire to the terminal block securely 
so that its core cannot be seen, and no external force affects the connecting section of 
the terminal block. 

6)  Firmly tighten the terminal screws. After tightening, verify that the wires are tightly fastened.
7) Connect power supply cord (K).
8) Install the conduit cover.
9) Install the service panel securely.

Terminal block

to conduit cover

Power supply cord (K)

Power supply cord (K)

Indoor/outdoor unit 
connecting wire (A)

    

 YY‚""#$

 %NMO M" 

connecting wires.

Lead 
wire

5/8 in.
(15 mm)

1-3/8 in.
(35 mm)

Service panel

Lock nut

Conduit cover

Connector

Grounding 
terminal

2-5-2. DRAIN PIPING

 QN=  &  "O; & -

&&$

 @ & N + %$
 QN &MO 

supplied drain hose (I). (Fig. 2)

 `   M+&&O;

securely into the pipe. (Fig. 3)

Do not make drain piping as shown below.

Do not raise

Accumulated 
drain water

Air

Waving

Water 
leakage

Water 
leakage

Water 
leakage

Tip of drain 
hose dipped 
in water

Ditch

At least
1-31/32 in. 
(50 mm) 
gap

Downward 
slope

Drain 
hose

Soft hose 
I.D. 19/32 in. 
(15 mm)

Drain hose

Hard vinyl chloride pipe 
I.D. 1-3/16 in.
(30 mm)

Insert  
securely

Different 
diameter 
joint

27-9/16 in.
(70 cm)
 or more

Fig. 1

Fig. 2

Fig. 3

Rear or bottom piping

$… N &&  O"+ &&+&& &†$

from the end.

2) Insert the piping and the drain hose into the wall hole sleeve (C), and attach the upper 

part of the indoor unit on the installation plate (1).

3)  Check if the indoor unit is attached securely on the installation plate (1) by moving the unit 

to left and right.

4) Attach the lower part of the indoor unit into the installation plate (1).

Right piping
Note:

Before performing the following, make sure that wiring is completed, and the conduit cover 
is installed. (Refer to 2-3.)
1) Place the refrigerant piping and the drain hose together, shift them to left side of the unit, 

 "+ &&+&& &†$N"

2) Insert the piping and the drain hose into the wall hole sleeve (C), and attach the upper 

part of the indoor unit on the installation plate (1).

3)  Check if the indoor unit is attached securely on the installation plate (1) by moving the unit 

to left and right.

4) Attach the lower part of the indoor unit into the installation plate (1).

Cut off in case of down-
ward piping.

TB support

3.  OUTDOOR UNIT INSTALLATION

Summary of Contents for TRANE NTXWST30A112A Series

Page 1: ...t into the atmosphere Check that the refrigerant gas does not leak after installation has been completed If refrigerant leaks during installation ventilate the room QN N O N QN N O N N heater space heater stove etc harmful gases will be generated Use appropriate tools and piping materials for installation The pressure of R410A is 1 6 times higher than R22 Not using the appropriate tools and materi...

Page 2: ...30 36A112A N INDOOR UNIT M N M Do not expose to direct sunlight also during the period following unpack ing to before use Y N N radio Operation of the air conditioner may interfere with _ N the affected device Q N N incandescent lights so the infrared remote control can operate the air conditioner normally M Note Install the indoor unit high on the wall where air can distribute over the entire roo...

Page 3: ...g to local code requirements Note 1 Place indoor outdoor unit connecting wire A and power supply cord K at least 3 ft 1 m away from the TV antenna wire Unit inch Unit mm 4 11 16 in 120 mm or more Space for indoor unit working Please leave the space as shown in the picture for maintenance usage After the leak test apply insulating mate rial tightly so that there is no gap 33 1 16 14 3 16 19 11 16 A...

Page 4: ... Process the end of indoor outdoor unit connecting wire A Fig 3 Attach it to the terminal block Be careful not to make mis wiring Attach the wire to the terminal block securely so that its core cannot be seen and no external force affects the connecting section of the terminal block 11 Firmly tighten the terminal screws After tightening verify that the wires are tightly fastened 12 Reinstall condu...

Page 5: ...ndoor unit completely to the left to make placing the piping in the back of the unit easier 7 Cut out two pieces of cardboard from the shipping box use any two pieces of the four pieces roll each piece hook them onto the back rib and use them as spacer to lift the indoor unit Fig 5 8 Connect the refrigerant piping with the extension pipe B 9 Attach the lower part of the indoor unit into the instal...

Page 6: ...w Do not raise Accumulated drain water Air Waving Water leakage Water leakage Water leakage Tip of drain hose dipped in water Ditch At least 1 31 32 in 50 mm gap Downward slope Drain hose Soft hose I D 19 32 in 15 mm Drain hose Hard vinyl chloride pipe I D 1 3 16 in 30 mm Insert securely Different diameter joint 27 9 16 in 70 cm or more Fig 1 Fig 2 Fig 3 Rear or bottom piping N O from the end 2 In...

Page 7: ...e closed 2 Connect gauge manifold to ports of stop valves 3 Evacuate the system to 4000 microns from both service valves System manifold gauges must not be used to measure vacuum A micron gauge must be used at all times Break the vacuum with Nitrogen N2 into the discharge service valve to 0 PSIG 4 Evacuate the system to 1500 microns Break the vacuum with Nitrogen N2 into the discharge service valv...

Page 8: ... outdoor unit 2 Fully close the stop valve on the liquid pipe side of the outdoor unit 3 Close the stop valve on the gas pipe side of the outdoor unit almost completely so that N 4 Start the emergency COOL operation To start the emergency operation in COOL mode disconnect the power supply plug and or turn off the breaker After 15 seconds connect the power supply plug and or turn on the breaker and...

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