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REFRIGERATOR_______________________________________
KZ recreational vehicles use numerous different brands and sizes,
models and styles of refrigerators in it’s coaches. These appliances
will use and consume propane, 120 volt AC and 12 volt DC energy.
To keep your food cold at a cool temperature, 34 to 38 degrees, it
MUST remove the heat from the box.
Types of cooling units:
1. Absorption system requires precise leveling within 1 degree. Air
MUST enter at lower service vent, be allowed to escape at the
upper vent, unrestricted.
2. A 12 volt DC Compressor being supplied with 120 volt AC,
feeding the convertor to produce 12 volt DC provides energy to
cool the box. Leveling and venting is less critical as the
absorption system.
3. A “house” type is used as a free standing unit in several large
travel trailers, which uses 120 volt AC only.
The last 2 CANNOT keep food cold while traveling.
All refrigerators used in outside kitchens have 120 volt AC only.
Leveling Absorption Type
For correct operation, the refrigerator MUST be within three degrees
of level in any direction. At 1 degree out of level, it will have one end
of a 30 foot trailer 5 inches higher than the other end. Continued
operation outside of these limits will result in irreparable damage to
the cooling unit in the refrigerator.
Venting Absorption Type
For an absorption unit to operate fully it MUST have two vents. The
lower vent serves as access to service components and allows air to
enter. As the refrigerator heats up, warm air leaves through the
upper vent in the roof or the side vent. The roof vent gives the best
“chimney” results. With correct baffles, side vent will work. All vents
MUST prevent birds and rodents from entering.
Units with two-side vents as in slide-outs, require a 12V fan to be in
operation. When upper cooling fins reach 150° Fahrenheit, the fan
will automatically start to operate. The positive wire has a five amp in
line fuse installed. Access to the fuse is inside of the lower service
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