Mitsubishi Electric TRANE NTXAMT12A112AA Manuel D'installation page 38

Electrical wiring to the air handler will come from the outdoor unit. Please refer to the installation instructions for
the outdoor unit.
CAUTION
DO NOT POWER THE ELECTRIC HEAT FROM THE OUTDOOR UNIT. FOLLOW THE APPROPRIATE
WIRING SCHEMATIC FOUND IN THE ELECTRIC HEATER INSTRUCTIONS.
13.1. Remote controllers
Connecting remote controller, indoor and outdoor transmission cables
Connect the "1" and "2" on the indoor unit TB15 to a remote controller. (Non-polarized 2-wire)
NOTE
Ensure that the wiring is not pinched when fitting the terminal box cover. Pinching the wiring may cut it
CAUTION
Install wiring so that it is not tight and under tension. Wiring under tension may break or overheat and
burn. Fix power source wiring to control box by using buffer bushing or tensile force. (PG connection or
the like.) Connect transmission wiring to transmission terminal block through the knockout hole of control
box using ordinary bushing.
CAUTION
Do not use anything other than the correct capacity breaker and fuse. Using fuse, wire or copper wire with
too large capacity may cause a risk of malfunction or fire
After wiring is complete, make sure again that there is no tension on the connections, and attach the cover onto the control
box in the reverse order removal. Also, seal any openings created from wiring into the air handler. This will prevent air
leakage.
CAUTION
Wire the power supply so that no tension is imparted. Otherwise disconnection, heating or fire may result.
Specifications are subject to change without notice.
NTXAMT12, 18, 24, 30, 36A112AA
38 © 2018 Mitsubishi Electric Trane HVAC US LLC. All rights reserved.