Schematic Diagram; Charging Method - Trane ComfortLink II 4TWZ0036B1000A Service Facts

CHARGING METHOD

This model has ComfortLink™ II and Charge Assist™
features. Charge Assist™ can be used in cooling mode
only.
For complete instructions on using Charge Assist,™
please see page 4.
SUBCOOL CHARGING TABLE CORRECTIONS FOR LINE LENGTH AND RISE
25
20
15
10
LOWER
Dip Switch 1-ON
0
10
2

SCHEMATIC DIAGRAM

All approved, matched systems.
20 25
TOTAL REFRIGERANT LINE LENGTH (FEET)
MANUAL CHARGING BELOW 55°F OD AMBIENT –
IN HEATING MODE (HP MODELS ONLY)
1. The only recommended method of charging at outdoor
ambients below 55°F, is to weigh in the charge in the heat-
ing mode.
2. Check liquid line temperature and pressure (at the OD
valves) to obtain a minimum of 10°F subcooling.
3. It is important to return in the spring or summer to accu-
rately charge the system in the cooling mode at outdoor
ambients from 55°F-120°F.
Max Lift
MIDDLE
Dip Switch 2-ON
30 40
UPPER
Dip Switch 3-ON
60 80