Double Sidewall Venting; Air Intake Vent; Sidewall Exhaust Vent - Norcold 1200 series Service Manual

Double Sidewall Venting

NOTE
The general guidelines for intake vents and roof exhaust
vents presented in this section do not replace the
instructions and/or guidelines provided in the 1200XX/
120X-IMXX Installation Manual and the Ventilation
Guidelines For Gas/Electric Refrigerators, part number
622090A (3-01). Refer to the 1200XX/120X-IMXX
Installation Manual and Ventilation Guidelines For Gas/
Electric Refrigerators for the latest information on
approved vents, installation instructions, and special
construction exceptions.
Because of increased installation of refrigerators in RV
slide outs, NORCOLD has developed venting
guidelines for double sidewall vent applications. This
ensures NORCOLD refrigerators meet the ANSI Z21.19
standards for cooling performance when used in slide
out applications.
The challenge with slide out installations is that the
"chimney effect" (see page 32) that is present with roof
vent installations is not as strong in slide outs. To
improve the airflow of the chimney effect, sidewall vent
installations must have fans and baffles. These fans
and baffles direct the air flow through the surfaces of
heat rejecting components. NORCOLD has determined
that the following three key design considerations
optimize heat removal in slide out applications.
Refrigerators installed in slide outs must have a fan
or fans to assist air flow. All 1200XX/120X-IMXX
refrigerators have two factory-installed fans.
Fresh air must be directed to flow through the
surface areas of the absorber coils, condenser fins,
and the outer surface of the canister.
Corners and structural pockets where heated air
may stagnate must be reduced in size or
completely eliminated.
Refrigerator Service Manual
Two baffles are required for the 1200XX/120X-IMXX
model in double sidewall venting applications. It should
be noted that baffle arrangements are different if the
enclosure depth is greater or less than 26 inches. The
baffle configurations are shown in Figure 12, page 22,
and Figure 13, page 23.

Air Intake Vent

The ventilation and combustion air flow into the
enclosure is through the air intake vent. See Figure 12,
page 22, and Figure 13, page 23.

Sidewall Exhaust Vent

The heat absorbed by ventilation air and combustion
gases flow out of the enclosure through the sidewall
exhaust vent. See Figure 1, page 22, and Figure 13,
page 23 for details.
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