Figure 63: Shaft ball bearing with set screw type
locking device
Table 60: 25 ton to 80 ton: fan shaft bearings
Cabinet
Type
Size (in.)
25 ton to 30 ton Heavy duty ball
bearing
1 15/16
40 ton to 50 ton
Unit roller
bearings (one
fixed and one
float)
1 15/16
60 ton to 80 ton
Normal duty -
SC Pillow block
- setscrew ball
bearing
2 11/16
Condensate drain
Inspect and flush the trap drain lines when required.
Protect the trap drain lines from freezing.
Note:
The unit must be properly trapped
and charged with water before the units are
started.
Tempmaster
®
Omni™ Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide
98
Tempmaster