Section B. Certified Vent Systems; Section C. Operating Instructions; Importance Of Leveling Arefrigerator - 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 19-3/4"
Width 17-27/32"
Thickness Up to 1/8"
Weight 49 Ibs.
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.
SECTION B. CERTIFIED VENT SYSTEMS
VENT KIT OPTIONS
DUAL METAL SIDE
VENTS
UPPER METAL SIDE VENT
LOWER PLASTIC SIDE VENT
DUAL PLASTIC SIDE
VENTS
* Vent System Requires One Each.
COMPONENTS
* RM 123 Upper Metal Side Vent
* RM 183 Lower Metal Side Vent
** Power Ventilator Optional
* RM 123 Upper Metal Side Vent
* Lower Plastic Side Vent
** Power Ventilator, Optional
* Upper Plastic Side Vent
* Lower Plastic Side Vent
** Power Ventilator Optional
*"* Alternative instructions forwarded with ventilator kit. Used in conjunction with
upper and lower side vents at minimum vent heights for optimum performance.
PART NO.
3100451.024
8030211.332
3108705.751
3100451.024
3107560.009
3108705.751
3107560.041
___3107560.009
3108705.751
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-
rator. The liquid ammonia then flows into the evaporator
(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 stow the cir-
culation of hydrogen and ammonia gas, or in severe
cases, completely block it, resulting in a loss of cooling.
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.