Tyler-refrigeration NSSD Instrukcja Użytkownika Pobierz pdf (Strona 15)

Installation & Service Manual NSSD

March, 2002 Page 15

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.

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

WWAARRNNIINNGG

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.

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