Double Sidewall Venting - Norcold N109X Series Service Manual

Double Sidewall Venting

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 30) 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
n
a fan or fans to assist air flow. All N109X
refrigerators have a factory installed fan.
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.
20
N109X Models
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 N109X Installation Manual
and the Ventilation Guidelines For Gas/Electric
Refrigerators, part number 622090A (3-01). Refer
to the N109X Installation Manual and Ventilation
Guidelines For Gas/Electric Refrigerators for the
latest information on approved vents, installation
instructions, and special construction exceptions.
Two baffles are required for the N109X 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 20, and
Figure 14, page 21.
air Intake Vent
The ventilation and combustion air flow into the
enclosure is through the air intake vent. See Figure 13,
page 20, and Figure 14, page 21.
Sidewall Exhaust Vent
The heat absorbed by ventilation air and combustion
gases flow out of the enclosure through the sidewall
exhaust vent. See Figure 13, page 20, and Figure 14,
page 21 for details.
Refrigerator Service Manual