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www.norcold.com
Polar Series N7V, N7X, N7XL / N8V, N8X, N8XL
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 flue 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.
Certified 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 certification 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 floor level. This allows any leaking propane gas to escape to
the outside and not to collect at floor level.
American Gas Association/Canadian Gas Association (AGA/CGA)
certification allows the refrigerator to have zero (0) inch minimum
clearance at the sides, rear, top, and bottom. While there are no
maximum clearances specified for certification, 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 flow is blocked or decreased, the refrigerator may not cool
correctly.
Each NORCOLD model is certified by AGA and CGA for correct
ventilation.
ATTENTION
!
WARNING
ATTENTION
!
AVERTISSEMENT
ATTENTION
!
ADVERTENCIA
ATTENTION
!
DANGER
To confirm that installation is adequate, check for:
■
Adequate ventilation - refer to "Ventilation Requirements" in the
refrigerator Installation Manual.
■
Both gas and electrical components installed and operating in a
safe condition.
■ Adequate seal between refrigerator mounting flange and cut-out
opening.
■ Installed on a solid floor (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 conflict 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
baffles may be present when cabinet clearances exceed installa
-
tion guidelines and specifications.
Baffles
Baffles prevent hot air buildup “pocketing” between the refrigerator
cabinet and the enclosure walls and/or ceiling. An enclosure may
be fitted with:
■ An absorber baffle and a condenser baffle
■ Side baffles (Fig. 6, A)
■ Vertical top baffle (Fig. 6, B)
■ Vertical angled baffles
■ Box baffle
■
Or a combination of any of the above
For complete detail about any necessary baffle(s), refer to the
refrigerator Installation Manual.
Lower Intake Vent
Ventilation and combustion air flow through the lower intake vent
(Fig. 6, C), which also serves as the service access or door. The
lower intake vent needs be kept clear of obstructions that may
restrict the flow of fresh air into the enclosure.
Exhaust Vent
Warm air and combustion gases flow out of the enclosure through
the exhaust vent. The exhaust vent can be either a roof exhaust
vent (Fig. 6, D) or an upper sidewall exhaust vent.
The roof exhaust vent has a non-removable metal mesh screen
to prevent leaves, birds, rodents and/or debris from entering the
enclosure.
Roof Cap
The roof cap (Fig. 6, E) fits over exhaust vent. The sloped end
always faces the front of the RV. It is held in place by four (4) 2-1/2”
long Phillips head screws.
GENERAL INFORMATION
