Filter Drier; Condenser-Fan Adjustment; Troubleshooting Cooling System - Carrier 50HC Series Service And Maintenance Instructions

Filter Drier

Replace whenever refrigerant system is exposed to
atmosphere. Only use factory specified liquid- - line filter
driers with working pressures no less than 650 psig. Do
not install a suction- - line filter drier in liquid line. A
liquid- - line filter drier designed for use with Puron
refrigerant is required on every unit.
Condenser- -Fan Adjustment
1. Shut off unit power supply. Install lockout tag.
2. Remove condenser- - fan assembly (grille, motor, and
fan).
3. Loosen fan hub setscrews.
4. Adjust fan height as shown in Fig. 27.
5. Tighten setscrews.
6. Replace condenser- - fan assembly.
Fig. 27 - - Condenser Fan Adjustment

Troubleshooting Cooling System

Refer to Table 6 for additional troubleshooting topics.
22
Conduit
0.14 in + 0.0 / -0.03
C08448