Replace Cooling Unit; Prepare The Replacement Cooling Unit; Apply Mastic; Fig. 11A - Mastic Application On Refrigerator Cabinet - Norcold 96 Serie Mode D'emploi

Replace Cooling Unit

3 3
Note:
The refrigerator serial number determines the style of
the replacement part. BE SURE you have the correct service
part. Refer to "Verify Service Part" in this document for ad-
ditional information.
Note:
IT IS IMPORTANT THAT ALL EXISTING (OLD)
MASTIC IS REMOVED. A fl exible, round cornered scraper is
needed to remove old mastic.
Note:
DO NOT REMOVE OLD TAPE. Removing old tape
will damage skin of refrigerator and weaken new seal.
1. Remove old mastic:
■ If no dented, malformed, wet, or spongy areas exist in
foamed surfaces, use a fl exible, round cornered scraper to
remove all mastic from lip (or step) of opening that receives
foam plate.
■ Discolored areas in old mastic, indicate regions where air
leaked into refrigerator and reduced cooling. If present,
photograph these areas and Contact Thetford Technical
Support at 1-800-444-7210 before continuing.
■ Scrape old mastic from evaporator tube paths on freezer
evaporator plates and from fresh food fi n panel.
■ Be SURE to remove all excess mastic from the evaporator
tube on the new cooling unit.

Prepare the Replacement Cooling Unit

3.1 3.1
1. Open new cooling unit package, place cooling unit on work surface
with inside facing up.
2. If an ice maker model, carefully tear off the perforated square
corner at the top of the metallic cardboard foamed onto the new
cooling unit. This is necessary to clear the ice maker connections
on the back of the cabinet.

Apply Mastic

3.2 3.2
Fig. 11a - Mastic application on refrigerator
cabinet
C
B
A
B
Fig. 11b - Mastic application on refrigerator
cabinet
A. Mastic tube nozzle
B. Mastic bead
C. Back surface of refrigerator
Note:
Use only Norcold-approved thermal mastic sealant to
avoid equipment malfunction. Other sealants, such as silicone,
latex, or petroleum-based formulations will reduce cooling
effi ciency.
Caution!
Poor cooling performance can occur if the mastic
!
applied varies (more or less) from amount specifi ed.
1. To apply correct bead size that results in a complete seal,
open mastic tube by placing cut in nozzle 3/4 inch from tube
and cut at 45 degree angle (Fig.11a,A).
2. Apply bead of mastic in horizontal direction 1/2 inch wide and
3/8 inch thick completely around the opening in two (2) places
(Fig.11a,B) and (Fig.11b,B).
Caution!
The cooling unit kit provides two tubes of mastic but by
!
applying the correct size bead in the correct locations, approximately 1.5 tubes
will be used for the installation. Using more than 1.5 tubes acts as an insulator
preventing peak refrigerator performance.
■ Apply mastic to the perimeter of the outer lip; open second
tube of mastic if necessary.
3. Open new cooling unit package, place cooling unit on work
surface with inside facing up.
4. Use mastic to apply bead 1/2 inch wide and 3/8 inch thick
(Fig.12,C) to evaporator tubes (Fig.12,B) that mate with
evaporator plates (Fig.12,A).
Caution!
Do not apply mastic to straight connector section of the
!
tube (Fig.12,D).
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