SECTION B.
CERTIFIED VENT SYSTEM KITS
REFRIGERATOR | KIT |
|
|
MODEL | NO. | COMPONENTS | PART NO. |
|
|
|
|
RM2612 | 4A | ROOF BASE | 3103633.XXX * |
RM2812 |
| ROOF COVER | 3103634.XXX * |
|
| LOWER SIDE VENT | 3102277.XXX * |
|
|
|
|
| POWER VENT | POWER VENT ASM. | 3104131.002 ** |
| (Island/through | ROOF BASE | 3103633.XXX * |
| floor) | ROOF COVER | 3103634.XXX * |
|
|
|
|
* Fill in "XXX" with color code numbers. For color codes, contact your supplier. ** Alternate instructions forwarded with the Vent Kit.
SECTION C.
OPERATING INSTRUCTIONS
1. IMPORTANCE OF LEVELING A REFRIGERATOR
In an absorption refrigerator system, ammonia is liquefied in the finned condenser coil at the top of the refrigerator. The liquid ammonia then flows into the evaporator (inside the freezer section) and is exposed to a circulating flow of hydrogen gas, which causes the ammonia to evaporate, creating a cold condition in the freezer.
The tubing in the evaporator section is specifically sloped to provide a continuous movement of liquid ammonia down- ward by gravity through this section. If the refrigerator is operated when it is not level and the vehicle is not moving, liquid ammonia will accumulate in sections of the evaporator tubing. This will slow the circulation of hydrogen and ammo- nia gas, or in severe cases, completely block it, resulting in a loss of cooling.
Any time the vehicle is parked for several hours with the refrigerator operating, the vehicle should be leveled to prevent this loss of cooling. The vehicle needs to be leveled only so it is comfortable to live in (no noticeable sloping of floors or walls).
When the vehicle is moving, the leveling is not critical as the rolling and pitching motion of the vehicle will pass to either side of level, keeping the liquid ammonia from accumulating in the evaporator tubing.
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