Dometic RH356LDE, RH341LD, RH356LD, RH360LD, RH361LD Service Instruction
...
SERVICE INSTRUCTION
COOLING
3120
3130
miniBar
miniCool
Previous models
Greenline
Face-lifting
HiPro
599 5152 -85
Publication-No.:
04.02.25
EN/SERVICE/MB/KV/RS
DES
Dometic GmbH
In der Steinwiese 16
D-57074 Siegen
Tel. 0049 / 271/692-0
Fax. 0049 / 271/692-300
replaces 599 4720-12/5
599 4708-82/3
ENGLISH
2
1.0 Summery of Models 3
2.0 Electronics 3
2.1 Fuzzy Logic 3
2.2 Fuzzy Logic with 2 Sensors 3
3.0 Automatic Defrost Function 4
4.0 Cooling Unit 5
5.0 Heating Shell 5
5.1 Resistances at Heating Elements 5
6.0 Lighting 6
7.0 Installation 8
8.0 Securing 9
9.0 Changing the Sliding Hinge 10
10.0 Changing the Decorative Panel 11
11.0 Automatic Door Control (ADC) 11
11.1 Mechanical ADC 11
11.2 Automatic Door Control (electrical) 13
12.0 Mounting a miniSafe 18
13.0 Storing Goods 19
14.0 Troubleshooting 20
15.0 Energy Saving Tips 20
16.0 Technical Data 21
17.0 Wiring Diagrams 24
17.1 Refrigerators without Lighting 24
17.2 Refrigerators with Lighting 25
17.3 Refrigerators with 55l/56l Capacity 26
18.0 HiPro Generation 27
19.0 HiPro Electronic 27
19.1 Temperature in the HiPro 27
compartment
19.2 Self-test of the electronics 28
19.3 Automatic fault analysis 28
19.4 Automatic Defrost Function 29
19.5 Cooling unit check 29
19.6 Heating Shell 29
20.0 Lighting 30
21.0 Automatic Door Control 30
22.0 Operation intervention 30
23.0 Installation 31
24.0 Securing 31
25.0 Changing the Sliding Hinge 31
26.0 Energy Saving Tips 31
27.0 Manual fault analysis 32
28.0 Technical Data 32
29.0 Wiring Diagram/ Occupancy electronics 33
TABLE OF CONTENTS
Summery of Models
Face lifting models and Greenline models are the latest generation of
miniBars/miniCools and consumes approximately 40% less energy than its
predecessors.
RH 430LD RH 330LD RH 236LD
RH 440LD RH 340LD RH 237LD
RH 441LD RH 341LD RH 238LD
RH 460LD RH 360LD RH 252LD
RH 461LD RH 361LD RH 255LD
RH 456LD/LDE RH 356LD/LDE RH 300LD
RH 455LD RH 355LD RH 226LD
RH 436D RH 136D RH 447D RH 137D -
- EA 330/L -
- EA 355/L -
- EAW 3220 -
Changes Face-lifting models to Greenline models:
Automatic defrost -cycle and design
Changes Greenline models to Previous models: cooling unit, the heating
cartridge, lighting, insulation and electronic controls (Fuzzy Logic).
Electronics
Fuzzy Logic
All Greenline models and Facelifting models maintain a constant temperature level which has been set at the beginning
of operation. This temperature level is controlled by
electronic intelligence in an energy-saving way.
Unlike conventional appliances, the electronic control
component does not switch on and off but controls (clocks)
the cooling units heating power in a way which does not
require system circulation to be interrupted.
The electronic controls sensor (A) is an air sensor. This means that the
sensor can react directly to the temperature inside the cooling appliance.
Fuzzy Logic with 2 sensors
By means of the second sensor the electronics carries out a leak detection
test. If leaks or blockages in the cooling unit are recognised the miniBar is
shut off by the electronics. The test is done after every defrost cycle
(every 24 hours).
After a Power-On-Reset, the controllers software runs a self test routine to
check the function of the sensors. The result of the test is shown with the
length of the first duty-cycle of the heating element (jumper X4).
There are four different states which are shown in the following table:
3
2.0
1.0
Face lifting Greenline Models Previous Models
A
2.1
2.2
Status Duty-Cycle
both sensors o.k. 7 sec. ON
air-sensor missing/defective 9 sec. ON
evaporator-sensor missing/defective 12 sec. ON
both sensors missing/defective 15 sec. ON
If the air-sensor fails during normal operation, the software shuts down the
cooling unit in steps to 0.
In refrigerators without evaporator-sensor or if the evaporator-sensor is
defective the leakage test is not carried out.Then the new electronics works
like the previous one without leakage detection.
Automatic Defrost Function
The electronic also regulates the automatic defrosting of the refrigerator.
When the plug has been stuck to the socket the running time of the
refrigerator up to the first defrosting is 15 hours for greenline models
and 39 hours for the new face lift models (RH4XX). For all models the
defrosting takes 2 hours. Then the refrigerator works 22 hours and
afterwards defrosts 2 hours. Therfore the starting of the refrigerators
determines the time of defrosting.
For example: Starting at 7.00h = first defrosting 22.00h - 24.00h (for facelift
models 22.00h next day)
4
3.0
S
TT
TT TT
S
(39h)
X4, connection heating element
Connections evaporator-sensor = Y3, Y4
Connections air-sensor = Y1, Y2
Do not change the
connections of the
evaporator-sensor and
the air-sensor !
Air-sensor
Evaporator-sensor
N
X1,X2,X3 = N
X5,X6 = L
In service case please pull sensor off
electrics and check by means of
measurement.
(ch. 15.0 Troubleshooting)
Ambient temperature°C Resistance (kW)
0° 32,51 +/-2%
10° 19,86 +/-2%
15° 15,68 +/-2%
20° 12,48 +/-2%
5
Cooling Unit
The cooling unit has been optimised for the Greenline models and FaceLifting 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.
Heating Shell
The conventional heating element (previous models) is replaced by a heating 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.
Measuring of resistances at heating elements
4.0
In case service is required:
5.0
Attention please! The heating bowls upper
edge must be placed at the shown position
(142 mm).
Install the mounting clip at the centre of
the heating shell.
142 mm
Resist
ances :
ch. 15.0 Troubleshooting
5.1
Connections N
and X4
Measure resistance...
...replace heating shell if required.
230V / 65 W heating shell ~ 800
WW
230V / 80 W heating shell ~ 650
WW
110V / 65 W heating shell ~ 186
WW
110V / 80 W heating shell ~ 150
WW
Lighting (except for RH 356LD/E, RH 456LD/E)
All Greenline and face lifting cooling appliances are equipped with sensorcontrolled lighting. The lightings sensor (proximity switch, A) is activated by
means of a magnet (B) which has been foam-installed into the door.
The lighting mechanism consists of two lamps for 180-250V operation
switched in series. For voltages of 100-140V, the lamps are switched in
parallel by means of a bridge.
A = Proximity switch
Take care when
replacing- pay
attention to correct
polarity
B = Magnet
Changing bulbs:
6
6.0
A
B
180-250V
100-140V
The proximity switch (A) is mark with a N
on the left side in front (correct polarity) .
If you chance the proximity switch please
eighth of the polarity.
A
1. Pull out the
mains plug.
2. Remove the
reflector disk.
3. Remove defective
bulb.
4. Insert new bulb.
5. Clip reflector disk
back in.
Lighting for RH 356LD/LDE and RH 456LD/LDE
The above models are equipped with
separate warm shelf and cooling section
lighting. This lighting mechanism consists
of:
- sensor - switch
- 1 light bulb for warm shelf
- 2 light bulb for cooling section
- Transformer (output voltage 6V)
Pay attention to country-specific voltages for the transformer!
Changing bulbs:
7
1. Pull out the
mains plug.
2. Remove the
reflector disk.
3. Remove the
defective bulb.
4. Insert new bulb.
5.Clip reflector disk back in.
90°
1.
2.
Installation
8
7.0
1. The refrigerator must be level both directions
2. There sould be 20mm clearance to the wall
3. Ventilation must be provided as shown in
alternatives A,B,C or D
4. The ventilation duct must at least measure
105mm x the wt
dth of the refrigerator
5. Only the entire cooling unit must project into
the duct as shown
6 Air p
assing through the duct must not be
preheated by any source of heat
7. Ventilation grills, if used, must have openings
of at least 200cm² each
Please follow the installation details below
carefully. Guarantee is valid for products
installed as described only.
IMPORTANT:
20mm20mm
20mm
20mm
200cm²
200cm²
200cm²
200cm²
200cm²
200cm²
200cm²
200cm²
Securing
RH 356LD/E, RH 456LD/E
RH136, RH137, RH330, EA330, RH340, RH341, RH360,
RH361, RH437, RH447, RH430, RH440, RH41, RH460,
RH461, EAW 3220
The miniBar must be screwed onto the cupboard using the lower hinges.
9
Recess dimensions in mm:
Model Hight Width Depth
RH 430LD, RH 330LD 526 388 432
RH 436D, RH 136D 526 388 432
EA 330L 526 388 432
RH 440LD, RH 340LD 558 405 466
RH 447D, RH 137D 558 405 466
RH 441LD, RH 341LD 558 405 469
RH 456LD/E, RH 356LD/E 662 454 523
RH 460LD, RH 360LD 567 490 494
RH 461LD, RH 361LD 567 490 494
EAW 3220 567 490 494
1. Tighten screw.
2. Put on cap.
8.0
1. Tighten screw.
2. Put on cap.
on level with furniture
Changing the Sliding Hinge
10
9.0
1.
2.
3.
4.
Distance to cupboard door (A)
A
1. When closed, the cupboard door (A)
must not lie against the rest of the
surrounding cupboard area
(distance 1-2mm).
1.
2.
1.
2.
mm
mm
2. There must be a distance of
6-8mm between the cupboard
door and the miniBar.
Changing the Decorative Panel
Automatic Door Control (ADC)
Mechanical ADC
Reset of automatic door control:
11
10.0
- Unscrew the 2 screws of the upper door hinge.
- Pull the door and the hinge off, away from the housing and in an upward
direction from the lower hinge pin (2-3).
- Unscrew the screws (4) and pull off the frame section (5).
- Pull the decorative panel (6) out of the door frame and push in the new
decorative panel (7) in such a way that the upper edge runs exactly
parallel to the upper section of the frame.
Put on upper section of frame (5) and re-fasten with screws (4).
- Set the door on the lower hinge, put the upper hinge in the door, guide
the door with the hinge into the hinge hole opening and screw together.
11.0
1.
The red dot has disappeared now.
Using a red dot in the display window (A, point 3), the ADC shows that
the miniBar´s door has been opened.
1.
2.
RH456LD/E
All other models
A
A
2.
3. Insert ADC key and turn to the
right.
3. Insert ADC key and turn to the
left.
11.1
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