Cooling Unit; Heating Shell; Resistances At Heating Elements - Dometic RH330LD Service Instruction

4.0

Cooling Unit

The cooling unit has been optimised for the Greenline models and Face-
Lifting models. Unlike the cooling units of its predecessors, the Greenline
models and Face Lifting models cooling units can be replaced.
When replacing the cooling unit, however, the heating element
(heating shell) must be replaced as well.
Ammonia is used as a coolant. This is a natural compound also used in house
hold cleaning agents (1 litre of Salmiak cleaner contains up to 200g of
ammonia - about twice as much as is used in the refrigerator). For the safety of
hotel guests and personnel, it has been established by inspectors that the
coolant poses no threat to health.
5.0

Heating Shell

The conventional heating element (previous models) is replaced by a hea-
ting shell. The heating shell is situated directly to the cooker tube. An optimal
efficiency ratio is achieved by means of a direct and enlarged contact area.
Install the mounting clip at the centre of
the heating shell.
Measuring of resistances at heating elements
5.1
Measure resistance...
...
replace heating shell if required.
230V / 65 W heating shell ~ 800W W
230V / 80 W heating shell ~ 650W W
110V / 65 W heating shell ~ 186W W
110V / 80 W heating shell ~ 150W W
In case service is required:
Attention please! The heating bowl’s upper
edge must be placed at the shown position
(142 mm).
Connections N
and X4
5
Resistances :
ch. “15.0 Troubleshooting”