Trane 4TXM2318BF300AA Service Manual page 21

When Wiring is not Complele
• Remove cover of control box, connect 1PH power to terminal 1 and 2 on terminal block. Use remote controller to
operate the unit.
• Note, in this operation, fan will be running.
• Upon confirmation of a smooth water drainage, be sure to cut off power supply.
Method of water charging
Method of water charging
Self-provided stiff pipe
Self-provided stiff pipe
Water drainage port for
Water drainage port for
maintenance
maintenance
(Drain water from
(Drain water from
this hole)
this hole)
100mm
100mm
Watering can of plastic
Watering can of plastic
pipe should be about
pipe should be about
100 mm long
100 mm long
⑦ WIRING
• All supplied parts. materials and wiring operation must in
appliance with local code and regulations.
• Use copper wire only.
• When make wiring, please refer towiring diagram also.
• All wiring work must be done by qualified electricians.
• A circuit breaker must be installed, which can cut power
• supply toall system.
• See Installation Manual of outdoor unit for specifications
of wires, circuit breaker, switches and wiring etc.
• Connecting of unit
Remove cover of switch box (1), drag wires into rubber tube
A, then, after proper wiring with other wires, tighten clamp A.
Connect wires of correct pole to the terminal block inside.
Wind sea 12 around wires. (Be sure to do that, or, dew may
occur).
• Upon connecting, replace control box cover (1) and (2).
Obscrve the following when connecting power supply
terminal block.
Don't connect wires of different specifications to the same
terminal block.
(Loose wire may cause overheating of circuit)
Connect wires of same specifications as shown in right Fig.
Maintenance
Maintenance
Inspecting hole
Inspecting hole
Charge water from
Charge water from
inspecting hole
inspecting hole
Charge water from
Charge water from
air outlet
air outlet
AB25S2SC1FA
AB25S2SC1FA
AB35S2SC1FA
AB35S2SC1FA
Indoor unit
AB50S2SC1FA
AB50S2SC1FA
terminal block
AB25S2SC2FA
AB25S2SC2FA
AB35S2SC2FA
AB35S2SC2FA
AB50S2SC2FA
AB50S2SC2FA
AB50S2SF1FA
AB50S2SF1FA
Outdoor unit
AB71S2SG1FA
AB71S2SG1FA
terminal block
Terminal block
Grounding lead
Cover of control box(1)
WARNING:
Connect wires
of the same
specifications
at twosides.
19
Connect with
Connect with
outdoor unit
outdoor unit
Terminal block
PCB on
PCB on
indoor unit
indoor unit
Terminal block
Terminal block
Cover of controll box
Indoor unit
terminal block
Outdoor unit
terminal block
Rubber tube A
In Out
Don't connect
wires of the same
specifications
at one side.
Terminal block
Cover of controll box
Don't connect
wires of the same
specifications
at one side.