Section 13. Start Up - Trane 4TWX8 Installer's Manual

12.3 High Voltage Ground
Ground the outdoor unit per national, state, and
local code requirements.

Section 13. Start Up

13.1 System Start Up
STEP 1 - Ensure Sections 7 through 12 have
been completed.
STEP 2 - Set System Thermostat to OFF.
STEP 3 - Turn on disconnect(s) to apply
power to the indoor and outdoor units.
STEP 4 - Wait one (1) hour before starting the
unit if compressor crankcase heater acces-
sory is used and the Outdoor Ambient is below
70ºF.
STEP 5 - Set system thermostat to ON.
16
OFF
DONE CANCEL
ON
OFF
60 MIN.
ON
DONE CANCEL
18-BC91D1-6B-EN