Dometic RM24A Bedienungsanleitung

-.B)pzGGq

SERVICE

United States

SALES OFFICES

DOMETIC SALES CORP.

Zone1

2320 Industrial Parkway

Elkhart. IN 46515

(219)

295.5226

DOMETIC

SALES

CORP .

Zone II

2920 Avenue

“E”

East

Arlington, TX 76011

(81

649.5726

DOMETIC

SALES CORP.

Zone III

14441 Bonelli St.

City of Industry, CA 91746

(818 )

968-9431

Canada

DOMETIC DISTRIBUTION INC

866 Langs Drive

CambrIdge. Ontario

N3H

2N7

Canada

(519 )

653-4390

Edition

Publication No

4528-E/Service

May

1973

DSC

648

cREFRIGERATOR

for

recrea

ional vehicles

RM24A RM36C

SERVICE MANUAL

RM46 RM4

RM66

RM67

When

ordering

SPARE PARTS

always

state:

MODEL. QUANTITY. PART NUMBER. DESCRIPTION

For

electric

details

also:

VOLTAGE. WATTAGE

RM76 RM77

Service Instructions for Domtic Absorption Refrigerators

The absorption refrigerators described in this manual are

primarily

for installation

in recreational vehicles.

Since the vehicles in

which

the refrigerators are

located

may be driven to remote

camp sites

where

electrical power is not available,the refrigerator5 have been

designed co operate by meansof bottle propane or butane gas as

well

electricity

12/110V.

These Service Instructions cover the Dometic

Models

RM24,

RM36C,

RM46,

RM47,

RM66,

RM67,

RM76,

RM77.

LIST OF CONTENTS

Description

Pag

ECHNIGU

FEATURES

Cabinet es,equipment .

.._

....

.....

.........

.....

INSTALLATION

INSTRUCTIONS

General

instructions

____

..........

Ventilation___

....

...................

Gas connections ____ ____

........... ....

Electrical connections___________..______ 5

Approved installations

Measurements...

____

............

........

Cabinet

Adjustments

To change the door panel _

_ ____ _____

....

Replacement of door gasket___.________.. 15

Replacement of evaporator door and gasket. 16

Reversing outer door__

....

......

___

THE

ABSORPTION

REFRIGRATOR SYSTEM

Sealed system constructions

_ _ _ _ .

......

Operating analysis for cooling unit ......

Cooling unit replacement

.............. ...

GAS/ELECTRIC

EQUIPMENT

Gas

equipment for

RM24

.....

........

Dual electric equipment for

RM24

.......

Car/electric

equipment

for

RM36C,

RM46,

RM47,

RM66,

RM67,

RM76,

RM77...____

OPERATION

FUNCTIONAL

PARTS

Termostat

replacment

___

......

.....

The gas burner ......

..............

..........

Flue system .......................

.........

Thermo

flame

failure device ...............

Description

ELECTRIC OPERATION

FUNCTIONAL

PARTS

Re place ment

of heater_______________.__.

Wiring

diagrams................................

PRESSURE

MEASURING

DEVICES

...............

OPERATING

RECOMMENDATIONS

Gas operation_______ _____ _______ _____

Electric

operation

.................

MAINTENANCE

Levelling

_________

..................

Temperature Control (thermostat).... 42

The

themostat

capillary

tube

..........

Storing food in the refrigerator_______.

Cleaning _____

....

______

...............

Ice cubes___________ ____ ______________

Travel latch ____ ____ _____

...............

Door seal_

......

___ ______ ______ ____ ___

Odors inside the refrigerator

............

Odors from

fumes .......... .......

Flame blows out

.....

........

____ ________

Flint lighter_______

......

........ ....

Piezo

lighter ____________ _ ____ _________

DIAGNOSIS

Trouble

shooting

electric operated

refrigerators _____ __

......

.............

Trouble

shooting

gas

operated

refrigerators_______ .....

.........

......

Failed refrigerating unit_____..._____._

Operation analysis for electric

operated

refrigerators

............. .......

Operation

analysis for LP gas

operated

refrigerators

..................

Periodic

maintenance

................ ..

Page

1..

TECHNICAL FEATURES

RM24

The cabinet has a so called “Full Finish Casing”and can be used freestanding or

built-in. RM24 is a compact refrigerator, ideal for campers, fitted with

front

frame

and seals.

This refrigerator is fitted with right-hand door with change over facility to

left-

hand door and exchangeable front door panel in an aluminium framed door.

Exchange can be made without the removal of the door.A full range of equipment is

available operated from the rear of the cabinet.A blow-out protection flue is

fitted as standard to assist in maintaining flame stability under adverse wind

conditions.A sealing frame is fitted around the cabinet for building-in purposes,

The refrigerator has one basic casing which is Foamed in place with a lining.

Insulation material polyurethane.

The construction of the door,complete, is an aluminium extruded door frame

foamed in place with the door pan and magnetic gasket.

Equipment

Fool-proof electric/gas interlock system.Thermo-electric flame failure device.

Flint lighting system. The electric and the gas thermostats are of the English

Ranco-make .

The

gas/e1

controls are located at the rear of the refrigerator and are acccssiole

through the service door in the wall, when installed in a

vehicle.

Version

Gas/110

volts A.C. and 12 volts D.C.

RM36C,

RM46,

RM47,

RM66,

RM67, RM76, RI.177

Cabinet

Thin wall polyurethane insulation.All models except

RM76

and RM77 have foamed in

place insulation.

RM76

and RM77 are foamed against mould.

Lining of vacuum-foamed

ABS

plastic, except

RM36C,

which has a lining of injection

moulded

plastic.

Distinct stop for evaporator door at

90’

opening,

RM46,

RM47,

RM66

and RM67

Cabinet shelf with hinge for big bottles,

The shelves run in grooves and will not move during transport of the vehicle.

Freezer compartments are, of aluminiurn sheet,except

RM36C,

where it is an

injectior

moulded part of the lining.

Accessible control panel inside the fresh food compartment.

Door

All models will be delivered with right hand door hinging, but it is possible for

the customer to change the door hinging from right to left hand.

Replacement of door panel is possible without removing the door. Only the side

profile of the door frame has to be removed.

Equipment

All models incorporate a thermo-electric flame failure safety device and a

piezo

lighting system.

The equipment for electric and gas operation is located at the rear of the cabinet

and manipulated from inside the cabinet.

The gas shut-off valve and the electric voltage-change switch are interlocked so

that both methods of operation cannot be inadvertently used at the same time.

The electric and gas thermostats are of the Ranco-make.

Version

All models will be available withcombination equipments for LP gas and 110 volts

A.C. or LP

gas/110

volts A.C. and12 volts D.C.

INSTALLATION INSTRUCTIONS

For LP-gas and electric operationin Motor Homes and Recreational Vehicles.

General instructions

The refrigerators outlined hereinhave been design certified under ANS 221.19

Refrigerators by the American GasAssociation for installation in a mobile home or

recreational vehicle and are approved by the Canadian Gas Association.

The certifications are, however,contingent on the installation being made in

accordance with the following instructions,

The installation must conform with:

In U.S.A.:

Installation of Gas Appliance and Gas Piping, 221.30

1964.

Mobile Homes A 119.1

1969.

Recreational Vehicles A 119.2

1970. The unit must be electrically grounded in

accordance with the National Electrical Code ANSI CI

1968, when installed if

an external alternating current electrical source is utilized.

Any applicable local code,

Canada:

C S A Standard

149.“Installation Code for Gas Burning Appliances and Equipment”

C S A Standard B

210.1/Z

240.4.“Gas equipped recreational vehicles and mobile

homes”

Ventilation

The installation shall be made in such a manner as to separate the combustion system

from the living space of the recreational vehicle. Openings for air supply or for

venting of combustion products shall have a minimum dimension of not less than

l/4

inch.

Approved installation requires one lower fresh air intake and one upper exhaust

vent. The accessory ventilation kits shown in these instructions have been tested

and approved for use with the refrigerator models identified. Their use is

recommen

ded, and when employed,the ventilation kits must be installed and used without

modification,

An opening to the outside at floor level of the refrigerator compartment must be

provided for ventilation of heavier-than-air fuel gases, The lower vent in the

Dometic kits is provided with proper size openings.

Gas connect ion

Hook-up to the gas supply line is accomplished at the manual gas valve, which is

furnished with a 3/8”

(SAE)

male flare connection.All completed connections should

be checked for leaks with soapy water.

CAUTION: When connecting the gas line to the gas valve on the

gas/e1

equipment at

the rear of the refrigerator,use a back-up wrench to prevent undue

rotation of the gas cock,

For hook-up and servicing purpose the lower vent is constructed as a lift out panel.

The gas supply system must incorporate a pressure regulator to maintain a supply

pressure of not more nor less than 11 inches water gage.

Electrical connections

110 V A.C.

The 110 V electric cord should be plugged into an approved receptacle in the

refrigerator compartment. The cord should be routed to avoid coming in contact witn

the burner cover, flue cover or other hot components.

12 V D.C.

On “Tri-Power”units there is an additional terminal block marked “12 V”. The refri-

gerator must be connected to the battery circuit with two wires of adequate capacity

to avoid voltage drop.

Do not use the body or chassis as a substitute for either of these wires (possibly

only in motor homes). No other electrical equipment or lighting should be connected

to the refrigerator circuit.

When estimating length and area of conductor cable, see table, page 6.

CAUTION :

Do not operate the refrigerator on 12 Volt when the vehicle is parked. You will run

the battery dead

a rather short time.

If possible the installation of a 12 Volt operated refrigerator should be completed

with a relay mounted either in the car or in the vehicle (see diagram). This relay

will automatically cut out the refrigerator when the car motor is stopped.

BREAKER

POINT

CAUTION

RELAY

----

REFR.

I--

Do not operate therefrigerator on

Volt

when the vehicle is

parked.You

will run

out of battery in a rather short time.

If possible the installation of a 12Volt ope-

’

rated

refrigator should be completedwith

a relay mounted either in the car or in the

vehicle (see diagram). This

realy

will au-

tomaticallycut out the refrigeratorwhen

the

car

motor is stopped.

Fig.

AWG

The figures below are guiding valuer calculated in consideration of

0.5 V voltage drop (about 7

input loss) in the connection cables

without taking into account the losses at the terminals,

Maximum length of two conductor cable in feet from

power supply

AWG

in mm

(solid cooper wire)

125 W

150 w

54 45

87 72

175 w

225

275 W

dmm

Area

mn2

38 30

99 77

1.628 2.082

2.052

3.307

2.588 5.260

.264

8.367

6.115 13.299

1.5

2.5

Maximum length of two conductor cable in meter from

power supply

95 w

125 W 150

175 w

225 w 275 W

6.0 4.5

10.5 7.5 6.5 5.5 4.0

16.5 12.5 10.5 9.0 6.5 5.5

25.0 18.5 15.5 13.5 10.0

8.0

32.0 26.5 22.5 17.0 14.0

Special hints

The refrigerator must be installed in a

sub-

stantial enclosure and

must

be level. A

spirit Level is supplied with each refriger-

ator and by placing it in the freezer com-

partment,

the refrigerator can be leveled

both ways front to back and side to side.

When installing the refrigerator in the

enclosure,care should be taken to ensure a

complete sealing between the front frame of

the refrigerator and the top, sides and

bottom of the enclosure, For this purpose a

length of sealing strip is delivered with

each refrigerator. The sealing strips should

be applied to the rear surfaces of the front

frame of the refrigerator. See fig, 2.

(RM24

is supplied with this sealing already

fitted on the front frame of the refriger-

ator).

Be careful not to damage the sealing strip

applied to the bottom of the enclosure when

the refrigerator is put in place.

Any space between the counter or storage

area and the top of the refrigerator must

be blocked. The heat produced at the rear

of the refrigerator will otherwise become

trapped in this space making the top of

the refrigerator hot and reducing the

efficiency of the refrigerator,

Approved

installations

Fig.

Approved installations require one roof vent and one lower side vent

as optional,one upper side vent and one lower side vent, as shown in

the figures 4,

and 6.

Kit No. 1

Kit No. 2

Kit No. 3

comprising:

Upper side vent

(Dometic

123)

Lower side vent (Dometic 183)

Upper side vent

(Dometic

RM122)

Lower side vent (Dometic

RM2217)

Roof vent

(Dometic

V 2019)

Lower side vent

(Dometic

RM2217)

When installing the refrigerators full consideration should be taken to the sealing

instructions and the specified minimum clearances and ventilation heights tabled

below:

MINIMUM INSTALLATION CLEARANCES IN INCHES

Figure showing

location of the

clearances

the

Fig.

Clearances on

sides,top and

bottom

Clearance A from

the rear of storage

compartment

Clearance B from

rear of

condenser

Clearance C on

top of

condenser

Refrigerator model

RM66

RM76

RM67

RM77

See minimum ventilation

height figures

Kit No. 1

RM24

comprising:

Upper side vent

(Dometic

123)

Lower side vent

(Dometic

183)

(see Fig. 4)

MINIMUM

VENTILATION

HEIGHT

FIGURES

Refrigerator Installation type

model

Kit No, 1 Kit No. 2 Kit No. 3

KM24

9/16”

RM36C

l/16”

29”

RM46,

RM47

5/8”

32”

RM66,

RM67

l/2”

41”

RM76,

RM77

l/4”

59”

PROPER VENTING IS REQUIRED TO ENSURE BEST PERFORMANCE

UPPER VENT

VENTILATIOX

Fig.

Kit No. 2

RM36C

comprising:

Upper side vent

(Dometic

RM122)

Lover side vent

(Dometic

RM2217)

(see Fig.

Kit No. 3

RM36C,

RM46, RM47

RM66,

RM67,

RM76,

RM77

comprising:

Roof vent

(Dometic

V 2019)

Lover side vent

(Dometic

RM2217)

(see Fig.

Dimensions pertaining to

the installation are shown

under measurements.

VENTING MEANS

Fig. 1

Roof vent for Kit No. 3

Dometic

V 2019

Cutout size 21”

23 ‘/2’

I-

Fig.

Upper side vent, Kit No. 2

Dometic

RM122

LOWER VENT

OPENING

LOWER VENT

VENTILATK:\

Fig. 6 \

Fig. 9

Lover vent, Kits No, 2

and No, 3

Dometic

RM2217

MEASUREMENTS

Cabinet and recess dimensions in inches.

Refrigerator

models

RM24

RM36C

RM46,

RM47

RM66,

RM67

RM76,

RM77

Cabinet

Overall

dimens

ons

Depth Width Height

13/16

217/8

24 7/8

5/8

l/8

l/4

9/16

7/16

22l/8

283/8

30 7/8

13/16

56l/2

Cabinet and recess dimensions in mm.

Cabinet

Refrigerator

Overall

dimen

models

Depth Width

RM24 478

486

RM36C

556 513

RM46,

RM47

631

547

RM66,RM67

631 547

RM76,

RM77

625

595

ions

Height

562

720

785

985

1435

-e

Cabinet overall dimensions

Door

pro-

jection

7/16

3/4

Door

pro-

jection

Built-in space

Depth

required

Width

l/4 19

l/4

200

l/4

217/8

l/4

21 7/8

5/8

13/16

Built-in space

OIPIh

460 489

572

515

521

729

590

555

794

590 555

994

599

605

1444

Built-in

space

requirements

Fig. 10 Fig. 11

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