User manual

OPERATING INSTRUCTIONS
CONTROLS
The refrigerator can be run on either 120V AC, 12V DC or
LP gas. Changing between these modes of operation is
carried out by means of the controls of the control panel
shown in fig 3.
Two rocker switches are used to select the electric power
supply, one for 120V AC (B) and one for 12V DC (A).
Refrigerator temperature is controlled by a thermostat (C)
when the unit runs on 120V AC. The gas supply is turned
on/off by means of the knob (D). When lighting the gas,
press in the knob as explained further on.
The refrigerator is fitted with a safety device which auto-
matically shuts off the supply of gas if the flame goes out.
In model RM 4180 a manual piezo-eletric igniter is used.
When the button (F) is pressed, sparks are generated at
the burner.
Inside the refrigerator at bottom left is a sight glass for the
burner. A blue light can be seen through it when the flame
is alight (RM 4180).
In model RM 4181, the gas flame is electronically lit,
monitored and relit if necessary. For this the toggle switch
(E) should be on during gas operation.
An indicator lamp in the switch flashes when the automa-
tic igniter attempts to light the burner. Otherwise this lamp
is off.
STARTING THE REFRIGERATOR
Only use one source of energy at a time.
The position numbers refer to fig. 3., pg. 10
LP Gas operation
After initial installation, servicing, or changing gas cylin-
ders etc., the gas pipes may contain some air which
should be allowed to escape by briefly turning on the ref-
rigerator or other appliances. This will ensure that the
flame lights immediately.
To start gas operation:
1. Open the shut-off valve of the gas bottle (check that
there is enough gas). Open any on-board shut-off
valve.
2. Check that the switches for mains and 12 V operation
are off.
If you have Model RM 4181 proceed as follows:
3. Turn on the gas supply by pressing the (D) knob and
turning it to the position .
4. Set the thermostat knob (E) to the highest position.
5. Depress switch (F). The switch now starts to flash, indi-
cating that sparks are being generated at the burner.
6. Keep the (D) button pressed for a further 10 to 15
seconds to active the flame failure device, then release
it.
7. When the flame lights, the sparking stops automatically
and the switch stops flashing.
If you have Model RM 4180 proceed as follows:
3. Turn on the gas supply by pressing the gas control (D)
and turning it into position .
4. Set the thermostat knob (E) to the highest position.
5. Keeping the flame failure device (D) pressed, activate
the igniter (F) several times until the flame lights.
6. Keep the knob (D) depressed for a further 10-15
seconds.
7. Release the knob and again check that the flame stays
alight.
The flame can be observed in a viewing glass inside the
refrigerator at the bottom left (RM 4180).
To terminate gas operation, turn knob (D) to l and
(when applicable) set switch (F) to 0.
120V AC Operation
 Turn off gas or 12V operation when applicable.
 Turn the knob (C) of the thermostat to its highest
(coldest) position.
 Set switch (B) to position I. The switch will light up
green when the power supply is connected
12V DC Operation
Only operate your refrigerator on 12V DC when the engi-
ne of the vehicle is running - otherwise your battery will
soon be discharged.
 If applicable, turn off the gas operation.
 Set the 12V rocker switch (A) to I. The switch will
light up red when the power supply is connected.
WINTER OPERATION
Please check that the ventilation grilles or the flue outlet
are not blocked by snow, leaves etc.
DOMETIC ventilation grilles L100/L200 (fig 2), can be fit-
ted with winter covers, to protect the cooling unit against
cold air. The covers may be fitted when the outside tem-
perature is below approx. 10°C and should be fitted when
the temperature is below the
freezing point.
We suggest that you fit the winter covers also in the case
that the vehicle is laid up during the winter months.
REGULATING THE TEMPERATURE
The position number refers to fig. 3.
It will take a few hours for the refrigerator to reach normal
operating temperature. So we suggest you start it well in
advance of a trip and if possible store it with precooled
foodstuffs.
On 120V operation the refrigerator is controlled by a ther-
mostat and the thermostat knob (C) should be set at 3-5.
If a lower (colder) temperature is desired, set the ther-
mostat to a higher figure.
On 12 V operation the refrigerator works continuously.
On LP gas operation the refrigerator temperature is regu-
lated by the rotary knob (D), which should be set at 3-5. If
a lower (colder) temperature is desired, set the thermost-
at to a higher figure.
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CAUTION