Heat Exchanger Cover - Sub-Zero 700TC-3 Service Manual

Integrated 700-3 tall series

Table of Contents

Component Access/Removal

Heat Exchanger Cover Removal (All Models)

The heat exchanger cover is held in the back left corner

of the lower compartment with screws that go through

the cover and into stand-offs. (See Figure 7-24)

To access and remove the heat exchanger cover, the

drawers and the left side drawer slides will need to be

removed first. Then, extract the mounting screws and

pull the cover from the unit.

Lower Evaporator Cover Assembly Removal

(Models 700TR-3 & 736TR-3)

NOTE: In these models, the evaporator fan assembly

is attached to the lower evaporator cover assembly.

The lower evaporator cover assembly is held in place

with screws. The left side mounting screws will be visi-

ble after the heat-exchanger cover is removed. Screws

on the right side secure the assembly to the switch

enclosure, and screws at top secure the assembly to

the ceiling of the lower compartment. (See Figure 7-25)

To access and remove lower evaporator cover assem-

bly, first remove drawers, left drawer slides, and heat

exchanger cover, then (See Figure 7-25):

1. Extract left side mounting screws.

2. Extract screws from top and right side of assembly.

NOTE: Bottom screw on right side also secures the

compartment thermistor.

3. Pull right top front of assembly down slightly and

disconnect evaporator fan electrical leads, then pull

assembly out through upper drawer opening.

Lower Evaporator Fan Assembly Removal

(Models 700TR-3 & 736TR-3)

The lower evaporator fan assembly is held in place by

bolts passing through access holes in the evaporator

fan shroud, then through the top flange of the evapora-

tor cover and into well-nuts in the fan bracket.

To access and remove the lower evaporator fan assem-

bly, first remove drawers, left side drawer slides, heat

exchanger cover and evaporator cover assembly.

Then, extract the bolts from the well-nuts (See Figure 7-

26).

The evaporator fan blade is pressed onto the shaft of

the fan motor and can be removed by simply pulling it

away from the motor.

#3758412 - Revision B - December, 2006

Integrated

(700-

Figure 7-24. Heat Exchanger Cover Removal

Figure 7-25. Evaporator Cover Removal, 700TR-3

Evap Fan Assy

Bolts through

Access Holes

Figure 7-26. Evaporator Fan Removal, 700TR-3

7-12

Series

ALL)

Screw