Dometic B533 User manual

207.4446.02
Camping Boxes-Refrigerator
B533
Operating Instructions
DDOOMMEETTIICC PPTTYY.. LLTTDD..
AUS

2
Thank you for choosing our appliance. We are sure it will provide you with trouble-free use.
n the following, we would like to familiarise you with some symbols, which we bring to your attention to ensure
the safe and efficient operation of the appliance:
source of danger, in event of improper operation
suggested useful tips to read
information concerning environmental protection
The B533 you have purchased is designed for operation on 240 Volt electrical mains, from a 12 Volt battery
or from bottled (LP) gas.
Important!
Do not operate this appliance in any unvented enclosed areas such as tents or motor
vehicles. Fresh air circulation must be available to the unit at all times.
Please read these operating instructions carefully before putting the
refrigeration unit into operation. If you later sell or dispose of it, please ensure
that the new owner receives these operating instructions.
Important!
Only operate this appliance on one energy source at a time.

3
C NTENT
C NTENTS S
1. Unpacking
2. View of the appliance
3. Cleaning
4. Positioning the appliance
5. Using the appliance
5.1. From 240 Volt electrical mains
5.2. From 12 Volt vehicle battery
5.3. From LP bottled gas
6. Useful suggestions
7. Defrosting, cleaning and maintenance
8. Trouble shooting
9. Putting into operation, technical data
9.1. Connecting to 240 Volt electrical mains
9.2. Connecting to 12 Volt vehicle battery
9.3. Connecting to LP bottled gas cylinder
9.4. Connection of gas supply
10. Environmental protection information
11. Recycling

4
1. Unpacking
After removal from the cardboard packaging, make
sure the appliance is not damaged. f you find damage
to the appliance resulting from transport, report it
immediately to the transportation firm.
2. View of the appliance
1. insulated casing
2. insulated lid
3. control panel
4. evaporator panel
Figure 1.
2
4
3
1

5
Figure 2.
3. Cleaning
Clean both the inside and outside of the
appliance before putting it into use.
To do so, use a soft towel, lukewarm water and a
non-abrasive detergent. Ensure water does not
enter the rear cover grill or the control panel.
Afterwards, wipe the appliance with a clean towel
and cleanwater, and then wipe it dry.
To avoid damage, do not use soap, soda or
abrasive cleaners.
4. Positioning the appliance
During the refrigeration process, the appliance
gives off heat from the condenser (under the
upper part of the rear cover) into the surrounding air.
The more ventilated the condenser is, the more
effective the refrigeration will be.
For maximum performance the appliance must be
level at all times when operating. f the appliance is
operating in a moving vehicle, the amount of the
refrigeration will be slightly less than if the appliance
is level in a stationary position.This is caused by the
movement of the vehicle impairing the flow of the
refrigerant within the unit.
t is important that the appliance is not directly
exposed to radiated heat (sunlight, radiator, near an
oven, etc.).
5. Using the appliance
The cable for 240 Volt mains connection, the 12V
connection and the gas inlet are located on the rear
cover of the B533 (Figure 2).
5.1. perating from 240 Volt
electrical mains
Before using your refrigerator box, please check
whether the mains-voltage at your home or at the
camp-site is the same as that specified on the rating-
plate.
The rating-plate is located on the back of all modells.
Your refrigerator is fitted with a regular earthed plug for
connection to a regular earthed socket (please use an
adaptor when abroad).
Now turn the thermostat control (A) to maximum
cooling i.e. in a clockwise direction as far as the stop.
When a sufficient low temperature has been reached,
the thermostat control (A) can be turned back again to
obtain the degree of cooling desired.
f you wish to switch off the unit or to defreeze it, turn
the thermostat control (A) in the anti-clockwise

6
direction as far as it will go (a slight resistance will be
felt) or remove the plug from the mains-socket.
NB: Plug is provided according to specific
regulations in each country and may be different to
that shown.
5.2. perating from 12 Volt
vehicle battery
Make sure the voltage shown on the data plate of the
appliance matches the voltage of the vehicle battery
(12V).
12V DC voltage appliances are equipped with
connectors that can be plugged into cigarette lighters
(Figure 3.). For some types of vehicle, you may need
to remove the red plastic ring located on the end of
the connector. To do so, turn the plastic ring in an anti-
clockwise direction and pull it off. The appliance can
then be connected to the cigarette lighter. n 12V
operation, the appliance runs uninterrupted without
temperature control.
For 12V operation, make sure, if the engine is not
running, that the appliance connector is removed from
the cigarette lighter (12V appliance). Otherwise, the
appliance will discharge the vehicle battery when in
operation.
5.3. perating from LP bottled gas
Connection to the gas cylinder is described in
sections 9.3. and 9.4.
After opening the valve of the gas cylinder and
checking for gas leaks (Figure 4) turn thermostat (B) to
maximum position, press down the gas safety valve
and at the same time, press the piezo-ignition button
(E) several times in quick succession. f the flame does
not ignite, repeat the process. (Air in the appliance gas
line prior to connection to the gas cylinder must be
purged. Only then can the gas be lit.)
gnition of the flame can be verified through the flame-
view opening (Figure 5). After you have the flame
alight keep the safety gas valve pressed down for a
further 10 seconds.
Figure 3.
Figure 4.
Figure 5.
B
AE

7
6. Useful suggestions
When setting out on a trip, run the appliance on
240 V for 24 hours prior to departure. Place food in
a pre-cooled condition into the appliance.
Frost forms on the evaporator panel when in
operation. When opening the lid or putting in food,
some of this frost melts and collects in the form of
water on the bottom of the appliance. Wipe the
water off occasionally using a sponge.
Avoid putting foods with fragile packaging (such as
glass) into the refrigeration unit. Movements and
shaking of the unit may cause these items to break.
Once the B533 is in its permanent position, make
sure foods do not come into contact with the
evaporator panel, as this can cause freezer-burn to
the foods.
The appliance is not operated on 12 Volts when
your vehicle is parked, otherwise you will drain the
battery in a short time.
Only one power source is used at a time to run the
appliance.
7. Defrosting, cleaning and
maintenance
For defrosting, always unplug the appliance from an
electrical power source to avoid the risk of shock.
Make sure no other power source is connected (gas
or 12V). Remove food from the refrigeration unit and
leave the lid open. Depending on the temperature,
frost melts in a short time from the evaporator panel,
with water collecting at the bottom of the appliance.
Wipe it off using a towel. Afterwards, clean the
appliance by following the instructions in section 3.
Leave the lid ajar to prevent any odours from forming.
The appliance is serviced depending on use, at least
once a year by an authorised service agent.

8
8. Trouble shooting
Before calling a service technician please check
carefully the operating instructions, service booklet
and the warranty terms and conditions:
Are location and ventilation satisfactory?
s the appliance level?
s there a current in the wall socket and is the
connection suitable for the appliance?
s the mains power cable damaged?
For mains operation, is the electric thermostat
swiched on?
For gas operation, was the safety valve knob
pressed down long enough?
s the thermostat knob set towards the maximum
position?
s the gas cylinder or the pressure regulator valve
open?
s there any gas in the cylinder? ( f by shaking, no
liquid movement can be detected, then the cylinder
is empty.)
s more than one power source connected (such as
gas or electricity)?
Was warm food placed in the unit?
Was a large quantity of food put in at one time?
9. Putting into operation
You must, in all instances, operate the appliance from
a single energy source only. Connecting several
energy sources at the same time will cause failure of
the appliance.
Technical data:
9.1 Connecting to 240 Volt
electrical mains
Make sure no other energy source is connected
(gas, 12V).
The appliance may only be operated from nominal
voltage mains as shown on the data plate. The
appliance mains plug may be connected to a mains
socket earthed in accordance with regulations.
Model B 533
Gross volume 33 litre
Mains operation 240V (AC)
Input 75 W (0 31 Amps)
Energy consumption 1.35 kWh/24h
Battery operation 12V (DC)
Input 75 W (6 25 Amps)
Energy consumption 150Ah/24h
Gas pressure (p) 2.75kPa (11 water gauge)
Gas type LP
Jet size 21
Gas consumption 0 481 Mj/h
Climate class N
Refrigerant 240g NH3+ H2O

9
9.2 Connecting to 12 Volt vehicle
battery
Make sure no other energy source is connected (gas,
240V).
12V appliances must be connected to a vehicle
cigarette lighter, which is protected with a 10A fuse.
Note: it is NOT recommended to run this 12 Volt
appliance from a 12 Volt cigarette lighter outlet.
9.3 Connecting to LP gas cylinder
Make sure no other energy source is connected
(240V, 12V).
The unit must not be connected to town or natural gas
pipelines. t is only suitable for use with propane gas.
The B533 is equipped for a specific gas-pressure,
2.75kPa (11 w. g.) . The rating-plate states the
pressure that is correct. t is important that a non-
adjustable pressure-regulator is used to reduce the
pressure in the gas cylinder to the operating pressure
specified on the rating-plate. No other pressure may
be used.
Needle valve-operated gas control taps are NOT
suitable for use with this appliance and must not be
used as a substitute for a pressure regulator.

10
9.4 Connection of gas supply
Always connect in the following sequence:
GAS BOTTLE →PRESSURE-REGULATOR →
→ APPL ANCE.
To connect the pressure regulator to the gas
bottle, the valve of the gas bottle must be closed.
Connect the pressure regulator to the bottle by
screwing firmly. The pressure regulator must be
compatible for propane 11" water gauge.
(2.75KPA)
To connect the appliance to the regulator an
approved flexible gas hose must be used, this
hose should be of a minimum length. Connect
the gas hose to the Pressure Regulator by
screwing, ensure this is a gas tight connection.
When fitting the gas hose from the pressure
regulator to the appliance be sure to use two
spanners one to hold the gas connection at the
back of the appliance D to avoid straining and
possible damage.(Fig. 8)
The gas bottle (Propane) may only be used in an
upright position and particular care must be taken
every time the appliance is connected to the gas
bottle to ensure that there are no leaks, that the
tubing (rubber hose) is not under tension or kinked,
and that it is not in contact with hot surfaces.
The tubing and the gas bottle should always be
located in positions where they will not be tripped
over or otherwise inadvertently disturbed.
Before attempting to light the burner, every time
after connection, turn on the gas at the bottle and
check the gas connections for leaks by applying a
soap and water solution over them and watching for
bubbles, which would indicate a leak.
After testing dry off traces of detergent.
For your safety:
Do not check for leaks with a naked flame! Do not smoke while checking for leaks!
Figure 8.
Seal

11
10. Environmental protection
information
The appliance does not contain any CFCs/HCFCs.
Ammonia (natural hydrogen and nitrogen compound)
is used as a refrigerating agent in the refrigeration unit.
The ozone-friendly cyclopentane is activated as a
motive agent for the PU foam insulation.
Sodium chromate is used for corrosion protection
(less than 2 weight % of the coolant).
11. Recycling
After unpacking the appliance, the packing materials
should be delivered to a local collection site. At the
end of its useful lifetime, the appliance should be
delivered to a specialised collection and reprocessing
firm, which reclaims the usable materials. The rest is
properly destroyed.
This appliance complies with the following EEC
directives:
LVD-Directive 73/23/EEC with amendment
90/683/EEC
EMC-Directive 89/336/EEC
Gas-Directive 90/396/EEC.

Printed by Xerox Hungary Ltd. Rev.: 2004. 01. 26.