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

Double Sidewall Venting

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 31) 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.
n 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
n
surface areas of the absorber coils, condenser
fins, and the outer surface of the canister.
Corners and structural pockets where heated
n
air may stagnate must be reduced in size or
completely eliminated.
Refrigerator Service Manual
NOTE
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 13, page 21,
and Figure 14, page 22.

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 12, page 22, and Figure 13,
page 23 for details.
1200XX/120X-IMXX Models
21