Dometic RM2620 User Manual download pdf (Page 7)

When the vehicle is moving, the leveling is not critical,

as the rolling and pitching movement of the vehicle will

pass to either side of level, keeping the liquid ammonia

from accumulating in the evaporator tubing.

OPERATION

Before starting the refrigerator, check that all the manual

gas valves are in the ON position. DO NOT forget the

manual shutoff valve on the rear of the refrigerator see

FIG. 1.

This refrigerator is equipped with a semi Automatic

Energy Selector (AMES) control system, which can be

set to automatically select either 120 volt AC or LP gas

operation (AUTO mode), or if desired LP gas only (GAS

mode).

The refrigerator controls will work down to 9.6 volt DC.

OPERATING

INSTRUCTIONS

IMPORTANCE OF LEVELING A

REFRIGERATOR

In an absorption refrigerator system, ammonia is lique-

fied in the finned condenser coil at the top rear 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.

When starting this refrigerator for the very first time, the

cooling cycle may require up to four hours of running

time before the cooling unit is fully operational.

The tubing in the evaporator section is specifically sloped

to provide a continuous movement of liquid ammonia,

flowing downward by gravity through this section. If the

refrigerator is operated when it is not level and the ve-

hicle 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.

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 floor or walls).

Most LP gas appliances used in recreational ve-

hicles are vented to the outside of the vehicle.

When parked close to a gasoline pump, it is pos-

sible that the gasoline fumes could enter this

type of appliance and ignite from the burner

flame, CAUSING A FIRE OR AN EXPLOSION.

FOR YOUR SAFETY, when refueling, shut off all

LP gas appliances which are vented to the out-

side.

! WARNING

Overall Recess

Refrigerator Dimensions Dimensions

Model

Height Width Depth Height Width Depth

ABCHWD

inch 51-31/32 22-23/32 24-9/16 49-17/32 21-13/16 24-3/32

RM 2620

mm 1320 577 624 1258 554 612

inch 57-7/8 24-39/64 24-9/16 55-7/16 23-11/16 24-3/32

RM 2820

mm 1470 625 624 1408 601 612

This method of installation and these clearances will give you adequate space for service and proper installation.

Side view View from above

FIG. 8

HAW

1 2 3 4 5 6 7 8 9 10 11 12 ... 15 16

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Dometic RM2620 User Manual Page 7

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