Dometic RM2193 Manuel d'utilisateur télécharger pdf (Page 6)

Using the refrigerator

 The refrigerator is silent in operation.

 When the appliance is first put into operation, there may be a mild odour which will

disappear after a few hours. Ensure the living area is well ventilated.

 The freezer compartment should be cold about one hour after switching on the

refrigerator.

 The refrigerator will take several hours to reach its operating temperature.

Importance of levelling the refrigerator

n 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 downward by gravity through this section. If the refrigerator is ope-

rated 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

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 permanently 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.

Controls

The gas and electric controls are located at the rear of the refrigerator and are accessi

ble through the lower vent in the outside wall of the vehicle. See FIG. 8.

5.2

5.2.1

5.2.2

CONTROLS FOR

RM 2191

CONTROLS FOR

RM 2193

FIG. 1

A = DC ON/OFF SWITCH

B = GAS ON/OFF SAFETY VALVE

C = PIEZO IGNITOR

D = ELECTRIC THERMOSTAT

E = AC ON/OFF SWITCH

F = GAS INLET FITTING

G = DC TERMINAL BLOCK

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Dometic RM2193 Manuel d'utilisateur Page 6