Ventilation Requirements - Norcold 121XAC series Installation Manual

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In the United States and Canada:
- Local codes, or in the absence of local codes, the Natural Gas and Propane Installation Code, CSA B149.1; ANSI A119.2
Recreational Vehicles Code; and CSA Z240 RV Series, Recreational Vehicles.
- A manufactured home (mobile home) installation must conform with the Manufactured Home Construction and Safety Standard,
Title 24 CFR, Part 3280 [formerly the Federal Standard for Mobile Home Construction and Safety, Title 24 (part 280), and the
current CSA Z240.4, Gas-equipped Recreational Vehicles and Mobile Housing.
- If an external power source is utilized, the appliance, when installed, must be electrically grounded in accordance with local
codes or, in the absence of local codes, the National Electrical code, and ANSI/NFPA 70, or the Canadian Electrical Code, CSA
C22.2. Parts 1 and 2.

Ventilation Requirements

WARNING:
The completed installation must make sure the refrigerator is completely isolated from its heat generating
components through the correct use of baffles and panel construction.
Certified installation needs one lower intake vent and one upper exhaust vent. Install the vents exactly as written in this manual. Any
other installation 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.
CSA International 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 maximum clearances are necessary for correct
refrigerator performance:
Bottom
0 inch min.
Each Side
0 inch min.
Top
0 inch min.
Rear
0 inch min.
These clearances plus the lower and upper vents allow the natural air draft that is necessary for good refrigeration. Cooler air
comes in through the lower vent, goes up around the refrigerator coils where it removes the excess heat from the refrigerator
components, and goes out through the upper vent.
The refrigerator also has two thermostat controlled fans to move air across the cooling system. These fans turn on when the
condenser fin temperature at the thermostat is about 130° F or higher and only when the refrigerator controls are on. These fans
turn off when the condenser fin temperature at the thermostat is about 115° F or less. Even with these fans, if the air flow is blocked
or decreased, the refrigerator will not cool correctly.
Each NORCOLD model is certified by CSA International for correct ventilation. Install only the certified vents that are listed in this
manual.
Installation Manual 4
0 inch max.
1/2 inch max.
1/4 inch max.
1 inch max.

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