Section 13. Start Up; Section 14. System Charge Adjustment - Trane 5TWX5 Installation And Operation Manual

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 accessory is used and the
Outdoor Ambient is below 70ºF.
STEP 5 - Set system thermostat to ON.

Section 14. System Charge Adjustment

14.1 Temperature Measurements
STEP 1 - Check the outdoor temperatures.
Subcooling (in cooling mode) is the only recom-
mended method of charging above 55º F ambi-
ent outdoor temperature. See Section 14.2.
For outdoor temperatures below 55º F, see
Section 14.4.
Note: It is important to return in the spring or
summer to accurately charge the system in the
cooling mode when outdoor ambient tempera-
ture is above 55º F.
For best results the indoor temperature should
be kept between 70º F to 80º F.
14.2 Subcooling Charging in Cooling (Above 55º F Outdoor Temp.)
STEP 1 - Use the refrigerant line total length
and lift measurements from Section 5.3.
Total Line Length = __________ Ft.
Vertical Change (Lift) = __________ Ft.
14
See Section 14.2 for
Outdoor
Temperatures
Above 55º F
See Section 14.4 for
Outdoor
Temperatures
Below 55º F
120º F
55º F
Outdoor Temp 1
55º F
Outdoor Temp 2
80º F
70º F
Indoor Temp
LIFT
18-BC119D1-1A-EN