Installation & Service Manual | NSSD |
Rear Ballast Location Replacement
1.Remove screws (1) and rear rail cover (2) from rear of case.
NOTE
If tappit screws are not available, a star- washer should be used between the bal- last and the heads of the screws.
2.Install required number of ballasts (3) in rear electrical raceway (4) with two screws (5) each.
3.Identify and connect required wiring har- nesses (upper, lower, etc...) to the ballast connectors (6).
4.Replace rear rail cover (2) and secure with screws (1).
Defrost Heater Replacement
WARNING
Always shut off electricity to case before replacing a defrost heater. Automatic cycling of fans or electrical power to wire ends could cause personal injury and/or death.
1. Remove bottom trays (1) from case (2).
2.Unclip and lift up fan plenum (3).
3.Disconnect and remove defrost heater (4) from mounting clips (5) and case (2).
4.Install new defrost heater (4) in reverse order.
5.Restore electrical power to case.
March, 2002 | Page 15 |
