Norcold 2118 - General Information and Enclosure; Enclosure, Baffles, and Airflow; Lower Intake Vent Functionality

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2118, 2118IM, 2118IMD Series
Ventilation
Overview
The installed unit must be completely
isolated from the combustion system of the
refrigerator and it must have complete and
unrestricted ventilation of the ue exhaust
which, in gas mode, can produce carbon
monoxide. The breathing of carbon monox-
ide fumes can cause dizziness, nausea, or
in extreme cases, death.
Certied installation needs one lower intake vent and one upper
exhaust vent. Install the vents through the side wall of the vehicle
exactly as instructed in the Installation Manual. Any other installa-
tion method voids both the certication and the factory warranty of
the refrigerator.
The bottom of the opening for the lower intake vent, which is also
the service access door, must be even with or immediately below
the oor level. This allows any leaking propane gas to escape to
the outside and not to collect at oor level.
American Gas Association/Canadian Gas Association (AGA/CGA)
certication allows the refrigerator to have zero (0) inch minimum
clearance at the sides, rear, top, and bottom. While there are no
maximum clearances specied for certication, the following maxi-
mum clearances are necessary for correct refrigeration:
Bottom 0 inch min. 0 inch max.
Each Side 0 inch min 1/4 inch max.
Top 0 inch min. 1/4 inch max.
Rear 0 inch min. 1 inch max.
These clearances plus the lower and upper vents cause the natural
air draft that is necessary for good refrigeration.
Cooler air goes in through the lower intake vent, goes around the
refrigerator coils where it removes the excess heat from the refrig-
erator components, and goes out through the upper exhaust vent.
If this air ow is blocked or decreased, the refrigerator may not cool
correctly.
Each NORCOLD model is certied by AGA and CGA for correct
ventilation.
ATTENTION
!
WARNING
General Information
To conrm that installation is adequate, check for:
■ Adequate ventilation - refer to "Ventilation Requirements."
■ Both gas and electrical components installed and operating in a
safe condition.
■ Adequate seal between refrigerator mounting ange and cut-out
opening.
■ Installed on a solid oor (not on carpet) and secured.
This refrigerator is not intended to be
operated as a free standing unit (i.e.
where the products of combustion are not
completely isolated from the living area) or
installed in such a way as to conict with
these installation instructions. Unapproved
installations could result in safety risks or
performance problems.
ATTENTION
!
WARNING
Enclosure
The cabinet that encloses the refrigerator is built by the RV manu-
facturer. Depending on cabinet depth, height, and width certain
bafes may be present when cabinet clearances exceed installa-
tion guidelines and specications.
Bafes
Bafes prevent hot air buildup “pocketing” between the refrigerator
cabinet and the enclosure walls and/or ceiling. An enclosure may
be tted with:
■ An absorber bafe and a condenser bafe
■ Side bafes [320] (See Fig. 6)
■ Vertical top bafe [13]
■ Vertical angled bafes
■ Box bafe
■ Or a combination of any of the above.
For complete detail about any necessary bafe(s), refer to the
refrigerator Installation Manual.
Lower Intake Vent
Ventilation and combustion air ow through the lower intake vent
[9] (See Fig. 6), which also serves as the service access or door.
The lower intake vent needs be kept clear of obstructions that may
restrict the ow of fresh air into the enclosure.
9
319
13
12
NOR000201A
179
320
Fig. 6 - Typical roof exhaust venting
Front of RV