Dometic RM 4203 User Manual

F
or best performance also at high ambient temperatures
t
here must be a free air circulation over the cooling unit at
t
he rear of the refrigerator.
T
he refrigerator is designed for a free-standing installation
a
nd the clearance to side walls etc., should be at least
5
cm (2'').
I
f the refrigerator is to be built-in, openings with sufficient
a
rea must be foreseen for the access and exit of air for the
c
ooling unit, as shown in fig. 2. The letters in the figure refer
t
o:
F Access for cooling air
G Exit for air (upwards)
H Exit forwards (alternative)
I
nstallation in a caravan or motorhome
T
he refrigerator must be installed in a recess (fig. 2) with
t
he dimensions given in TECHNICAL DATA.
T
he refrigerating unit is ventilated via two openings in the
w
all of the caravan. The opening must be fitted with suitable
g
rilles, to give a free cross-section of at least 250 cm
2
.
G
rilles specially developed for this application can be obtai-
n
ed from DOMETIC (model A 1620).
F
our fasteners are fitted in the plastic bushings in the side
w
alls of the fridge, fig. 4. They are used for securing the
r
efrigerator in the enclosure.
T
he side walls of the enclosure and/ or any wooden braces
i
nstalled to fix the refrigerator must be dimensioned to seat
t
he screws securely, also considering the forces due to the
m
ovement of the vehicle.
W
ith the refrigerator in place, drive the screws through the
b
ushings in the lining of the refrigerator into the walls of the
e
nclosure. There must not be more than 3mm of clearance
b
etween refrigerator and enclosure on each side. If neces-
s
ary, wooden strips or similar should be fitted.
N
ote: This is the only approved means of securing the
r
efrigerator to the enclosure and to the vehicle. Fasteners
p
enetrating other parts of the insulation (PU) foam of the
r
efrigerator might damage components like electric wiring
e
tc.
F
lue gas must be exhausted through a flue extension, to be
o
rdered separately or purchased through our service organi-
s
ation,
T
he distance between the flue tube and combustible
m
aterial must not be less than 20 mm at any point. The
s
pace around the tube where it passes through the caravan
w
all should be packed with glass wool protected with
s
uitable metal plates. Install the flue extension as shown in
f
ig. 5.
T
he upper DOMETIC grille has an integrated flue
o
utlet, fig. 7. In this case the traditional flue outlet, is not
n
eeded which simplifies the installation.
I
f there is no outer grille at floor level where leaking gas can
e
scape, a 40 mm hole should be made in the floor of the
r
ecess to drain the gas. The hole should be fitted with wire
m
esh and an angled plate to protect it from stones, mud
e
tc.
L
P GAS CONNECTION
T
he refrigerator is designed for operation on liquified petro-
l
eum gas (LPG), the pressure of which must be:
● for Butane type LPG 28 mbar
● for Propane type LPG 37 mbar
C
heck that this is stated on the data plate.
T
he refrigerator is not designed for operation on town gas or
n
atural gas.
T
he gas equipment is shown in fig. 6. In the burner (P) is a
t
hermocouple (O), which generates an electric current
t
hrought the flame failure device (N), keeping it open as
l
ong as the flame burns. The valve (M) opens/closes the
g
as mechanically. It also has a ``MIN'' position for cold
w
eather. The piezo igniter (L) is connected to the spark plug
(
Q). The gas connecting tube (K) has a nipple (J) with left
h
and thread R 1/4.
.
.. in open air applications
F
or this application a hose connection to the LPG-bottle is
u
sed. Only use rubber hose with crimped on connectors
a
pproved for LPG.
A
pressure regulator (as described above) is assembled to
t
he LPG-bottle. Check that the rubber gasket in the shut off
v
alve of the bottle is clean and undamaged, as also the
s
ealing surface in the pressure regulator. The nut should
o
nly be thightened by hand - otherwise the gasket might be
d
amaged.
T
he connection is made as follows (figs. 6/9):
● Put the refrigerator on its side
● Connect hose to nipple (J) and thigten by hand. (Note:
left hand thread!).
● Thigten carefully with a wrench, thereby holding the
nipple (J) with second wrench.
● In the same way, connect other end of hose to pressure
regulator on LPG bottle.
● Open shut off valve of bottle, putting the hose under
pressure.
● Check for leaks at the connections, using water with
detergent, watching for bubbles. If leaking: carefully
thigten with two wrenches as explained above until
formation of bubbles stops.
● In similar way check also thigtness between nipple (J)
and tube (K) and thighten if necessary.
● Also check connection between pressure regulator and
LPG bottle. If leaking, clean sealing surfaces and inspect
for damage. If found defective: exchange (return LPG
bottle), but do not use any foreign sealing compound.
C
AUTION: If there are still leaks, call in a service
technician.
.
.. indoors
T
he gas installation should only be carried out by an
a
uthorisid gas fitter.
CAUTION !
CHECK THAT THE GAS SUPPLIED TO THE
REFRIGERATOR IS AT THE CORRECT PRESSURE.
CHECK THE REDUCING VALVE ON THE LP GAS
11

Dometic RM 4203 Specifications

General

Brand	Dometic
Model	RM 4203
Category	Refrigerator
Language	English