Section B. Certified Vent Systems; Section C. Operating Instructions; Importance Of Leveling Arefrigerator; Door Panel - Dometic RM 2191 Installation & Operating Instructions Manual

13. INSTALLATION OF DECORATIVE

DOOR PANEL

The door panel can easily be mounted. The dimensions
of the panel must be:
Height 1 g-314"
W i d t h
T h i c k n e s s up t0 1/a"
Weight 49 Ibs.
r
DUAL METAL SIDE
VENTS
UPPER METAL SIDE VENT
LOWER PLASTIC SIDE VENT
DUAL PLASTIC SIDE
VENTS
Vent System Requires One Each.
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* Alternative instructions forwarded with ventilator kit. Used in conjunction with
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upper and lower side vents at minimum vent heights for optimum performance.

SECTION C. OPERATING INSTRUCTIONS

1. IMPORTANCE OF LEVELING A
REFRIGERATOR
In an absorption refrigerator system, ammonia is lique-
fied in the finned condenser coil at the top of the refrige-
(inside the freezer section) and is exposed to a circula-
ting 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 slo-
ped to provide a continuous movement of liquid ammo-
nia downward 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 cir-
culation of hydrogen and ammonia gas, or in severe
cases, completely block it, resulting in a loss of cooling.

SECTION B. CERTIFIED VENT SYSTEMS

A. Remove the door. See Section 12.
B. Remove the lower trim molding. (NOTE: Trim molding
is not installed on new units in cartons)
C. Fit the new panel in place and slide it up as far as
possible.
D. Fit the trim molding back in place.
* RM 123 Upper Metal Side Vent
* RM 163 Lower Metal Side Vent
* Power Ventilator Optional
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* RM 123 Upper Metal Side Vent
* Lower Plastic Side Vent
** Power Ventilator, Optional
* Upper Plastic Side Vent
* Lower Plastic Side Vent
** Power Ventilator Optional
Remember to level the vehicle when stopping for more
than an hour, otherwise the cooling unit could be perma-
nently damaged due to overheating if it is left "ON".
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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