Installation Manual 4
Certified installation needs one lower intake vent and one upper exhaust vent. Install the upper exhaust vent either through the roof or
through the side wall of the vehicle 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. This allows any leaking LP gas to escape to the outside and not to collect at floor level.
While there are no maximum clearances specified for certification, the following maximum clearances are necessary for correct
refrigeration:
Bottom
0 mm min.
0 mm max.
Each Side
0 mm min
3 mm max.
Top
0 mm min.
6 mm max.
Rear
0 mm min.
25 mm max.
These clearances plus the lower and upper vents cause the natural air draft that is necessary for good refrigeration. Cooler air
comes in through the lower intake vent, goes up around the refrigerator coils where it removes the excess heat from the refrigerator
components, and goes out through the upper exhaust vent. If this air flow is blocked or decreased, the refrigerator will not cool
correctly.
Assemble the Enclosure
1. Make sure the enclosure is:
N304M
models - 756 mm high x 521 mm wide x 543 mm deep.
N404M models - 929 mm high x 602 mm wide x 620 mm deep.
N504M models - 1083 mm high x 602 mm wide x 620 mm deep.
2. Make sure the floor is solid and level.
- The floor must be metal or a wood panel and extend the full width and depth of the enclosure.
- The floor must be able to support the weight of the refrigerator and its contents.
3. Make sure there are no adjacent heat sources such as a furnace vent, a hot water heater vent, etc.
Install the Lower and Upper Vents
1. Using the following chart, decide which vents and rough opening (RO) sizes to use.
Certified Vent
P/N
RO Height
RO Width
Upper Roof Exhaust Cap
622293
N/A
N/A
Upper Roof Exhaust Vent
616319
610 mm
133 mm
Upper Side Exhaust Vent
617485
184 mm
457 mm
Lower Side Intake Vent
617484
248 mm
492 mm
Universal Upper & Lower Vent
620505
157 mm
452 mm
Universal Upper & Lower Vent
621156
349 mm
546 mm
Universal Upper & Lower Vent
631140
249 mm
490 mm
Lower Side Intake Vent
631246
156 mm
450 mm
Upper Side Exhaust Vent
631247
156 mm
450 mm
