Thetford EV704D User Manual

OWNER’S MANUAL

MODEL

DE-704D

Part No.: 616342D

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Model DE-704D

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EXTENDED COOLING UNIT SERVICE PROTECTION PLAN

An additonal two year Service Contract is now available to

inal purchasers of Norcold refrigerators. For only $25.00 you

ori

et:

* two extra
* automatic replacement of defective coolin
* pre-paid frei
* labor free of char
The E.S.P.

mailing your check for $25.00, U.S. funds to:

ears protection against cooling unit failure

unit

ht from your dealer to Norcold and return

e

Extended Service Plan) plan can be obtained b

E.S.P.

E.S.P. is a service contract between Norcold and the ori

purchaser. The contract provides replacement of a defective

unit only for this refrigerator (freight, parts and labor) for

coolin
an additional period of two
Limited Warrant
cold service center to

E.S.P. coverage. An E.S.P. card will be mailed to the origi-

in
nal purchaser upon receipt of a completed Extended Service
Protection Plan Application form and a check coverin
E.S.P. char
fundable.

To re

ister your refrigerator, fill out the Extended Service Pro­tection Plan Application - i.e.: tear sheet form in blue envelope
or include the followin

. The refrigerator must be delivered to a Nor-

e. E.S.P coverage is non-transferable and non-re-

ears after expiration of the original

ether with the Norcold E.S.P. card show-

information (Please Print Clearly):

inal

the

Norcold

P.O. Box 180

Sidney, OH 45365

If mailing in Canada:

GREG LUND PRODUCTS, LTD.
P.O. Box 760
Oakville, Ontario, Canada L6J 5C4

1. Owner’s name and address

2. Refri

3. Refri

4. Date of purchase

5. Check for $25.00

Applications will be accepted only if they are mailed within nin-

te

erator model number
erator serial number

able to Norcold

days after date of purchase.

IMPORTANT

This refrigerator is designed to operate on power supply limits as follows:

120 volt AC operation: 132 volts max., 108 volts min. 12 volt DC operation: 15.4 volts max., 12 volts min.

Operation on power supplies exceedin

supplies below the limits will result in unacceptable performance.

When operatin

without a battery in the circuit) is not recommended since these devices do not normally supply a filtered DC source. Unsatisfactor

operation will result.

on 12 volts DC, a battery source must be used. Operating the refrigerator on a convertor or battery charger alone

61 hertz max., 59 hertz min.

the maximum limits may cause damage and void the warranty. Operation on power

This appliance has been designed for refrigerating purposes and is operable on either 120 volt AC or 12 volt DC when installed as

directed b

The location of the model and serial number ma

to the trim rail.

Before installing your refrigerator, record and retain the model and serial number for future reference and warranty purposes.

Model No. ___________________________________________ Serial No.______________________________________________

Date Of Purchase________________________________________________________________________________________________

Dealer’s Name __________________________________________________________________________________________________

this manual.

See Figure 1.

DE-704D

be found attached to the front bottom trim or on the cabinet liner immediately adjacent

2

INSTALLATION

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In preparing the DE-704D for installation, the following areas

should be considered:

1.

Adequate ventilation.
Sizing of supply wire and fuse protection.

2.
Direct wiring from battery to avoid electrical interference

3.

with other equipment.

4.

Provisions to prevent battery run-down.
Provide correct voltage and frequency for AC operation.

5.
Proper grounding to prevent electrolysis for marine applica-

6.

tions.

These instructions provide a

situations listed above.

The Norcold dual volta
tional vehicle, Marine industr
lations. A t
erator to operate on 12 volt DC while in transit and 120 volt AC
while parked. The Norcold refri
one power source to the other.

Unlike the absorption-t
heat source for efficient operation,
operates on the same principle as the standard dom estic refri
tor. That is, it has an electricall
freon as its refri

pical R.V. installation, for instance, requires the refrig-

erating medium.

uide to insure compliance to the

e refrigerator is designed for the recrea-

, as well as under the counter instal-

erator automatically converts from

pe refrigerator, which requires a constant

our dual voltage refrigerator

era-

operated compressor and uses

Unit Location

Be sure the refrigerator is not installed in direct sunlight, or near

as stove, heater or other heat generating sources. A flanged

a
mountin
cabinet to allow build-in installation.

within the vehicle.
Table 1. Measure for the openin

proper clearances for installation. There is no need for allowin
area around the cabinet for additional insulation as the Norcold
refri

frame is provided around the front of the refrigerator
The refri
The openin

erator must be located and secured on a solid surface

cut-out dimensions for the refrigerator are listed in

and determine if you have the

erator is well insulated and requires no additional insulation.

an

Table 1

erator Cut-Out Opening (inches

Refri

Model Height Width Depth
DE-704D 33 1/8 22 21 3/4

Before installing the cabinet into the opening, check to see if the

AC power suppl
wall outlet and if the DC suppl
cases, the DC supply can be connected from outside the vehi cle

means of the vent or access door.

b

Place the refri

fastening the mounting flange to the wall through the holes

b
provided.

Please note the perforated access panel at the front base of the

erator. This panel allows air movement to flow under the

refri
cabinet and over the power suppl

The rear side of the unit must not be cl osed off without providin

ventilation. At least 50 sq. inches must be provided to allow re-

ected heat to escape.

For travel trailers, a small louver-t

16" area ma
exterior wall of the vehicle for outside ventin

A combination of a roof

offers ade
The more air circulatin
more efficient the refri

cord of the unit is properly connected to the AC

should be connected. In man

erator into the wall opening and secure it in place

for cooling.

pe vent of approximately 4" x

be installed at the top and at the bottom of the

purposes.

ack and lower vent or two side vents

uate venting for high outside ambient temperatures.

over the condenser (located at rear), the
erator will operate. Failure to provide the

necessar
low outside ambient temperatures is necessar
exterior ventin
loss.

When installation incorporates exterior ventin
low outside ambient temperatures is necessar
terior ventin
cabinet will result.

ventilation will result in poor refrigeration. If operation at

below 23° F) all

must be covered to prevent serious performance

and operation at

below 23° F), ex-

must be covered or reduced cooling efficiency in

Power Supply

Provisions are made for connection of either 12 volts DC or 120
volts AC to the refri
are simultaneousl
power suppl
DC power, the AC suppl

erator. If both 12 volts DC and 120 volts AC

supplied, a special relay in the refrigerator

allows the unit to run on 120 volts AC. To convert to

is simply disconnected.

DC Power Connection

The DC supply connection is located behind the perforated ac­cess panel at the bottom front of the unit. Rem ove the screw from
the top center of the access panel and remove the panel. The DC
terminal box is located in the control power suppl
positive and ne
terminal box. The terminal box is provided with knock-out holes for

the DC lead wires through the side of the terminal box.

routin

The size of the wire from
upon the distance between the refri
to Table 2 for wire size.

ative DC supply connections are located in this

our 12 volt DC battery is dependent

erator and the battery. Refer

assembly. The

Table 2

12 Volt Supply Wiring And Fuse Size

Min. Wire Max. Fuse

Size Size
0 -12’ 14 AWG 15 AMP
12’ - 20’ 12 AWG 15 AMP
over 20’ 10 AWG 15 AMP

This recommended wire size is to prevent a voltage drop at the

erator which is critical to DC performance.

refri

Use of wire sizes smaller than those listed m a
DC runnin
line loss.

It is important that the 12 volt, DC supply wires be connected
directly to the battery and that the wires are dedicated to the re­frigerator (other appliances are connected by separate wires). This
practice minimizes the possibilit
Twistin
nullif
interference.

To the leads located in the terminal box, connect the positive
batter
black wire
be soldered or connected b
nector. Tape the spliced connections
the terminal cover box.

A 15 amp fuse should be installed as close to the batter
possible in the positive wire leadin
will protect the wirin
event of a short circuit.

CAUTION:

3

time, shorter battery life, and poor performance due to

of radio and T.V. interference.

the positive and negative supply wires further helps to

the induction effects which could further add to radio/T.V.

lead to the red wire and the negative battery lead to the

important to be well insulated). These splices should

means of an approved splice con-

enerously before replacin

to the refrigerator. This fuse

from the battery to the refrigerator in the

DO NOT OPERATE REFRIGERATOR ON BATTERY ALONE.
THE BATTERY MUST HAVE A CHARGING MEANS SUCH AS
AN ON-BOARD GENERATOR; IF NOT, THE BATTERY WILL
DISCHARGE IN A SHORT PERIOD OF TIME.

cause excessive

as

Further information on DC supplies can be found later in this

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manual.

ance with existin
is not recommended.

CAUTION:

IF AC POWER IS SUPPLIED BY AN ON-BOARD GENERATOR,
IT IS VERY IMPORTANT TO HOLD BOTH VOLTAGE AND FRE­QUENCY WITHIN THE TOLERANCES STATED IN THE FRONT
OF THIS MANUAL

overning codes. The use of an extension cord

Special Requirements For

Marine Installations:

Figure 1

AC Power Connection

The 120 volt AC power connection is made by connecting the

erator’s AC cord to a standard 120 volt grounded receptacle.

refri

ure 2.

See Fi

The 120 volt AC suppl
nected, should be routed throu
that protects the vehicle when an outside power source is used.
This connection should be permanentl

wires, to which the refrigerator is con-

h the fuse panel or circuit breaker

wired in accord-

OPERATION

Power Source

As previously noted, the Norcold refrigerator can be operated on
either 12 volts DC or 120 volts AC. If both power sources are
connected simultaneousl
volts AC. A special rela
on DC power, the AC source must be disconnected, allowin

to switch to 12 volts DC.

rela

On DC operation the circuit is protected electronicall
current and overvolta
protected from overload conditions b
device.

Temperature Control

A single thermostat controls the operation of the refrigerator on
AC or DC. It is located on the panel below the f ront door

. The dial is marked "1" through "5". The nearer the dial is set to

1
"5", the colder the temperature becomes in the cabinet.

There is no need to read
dual operation. Once the desired temperature is reached, the
thermostat will control the cabinet temperature e
either volta

e supply.

, the refrigerator will operate on 120

disconnects the DC power. To operate

the

for over-

e. Likewise on AC operation the circuit is

a bi-metallic current limitin

See Fig.

ust the setting of the thermostat for

ually well on

The DE-704D is internally wired so that the AC and DC
circuits are isolated from each other. If the positive
DC input is grounded in any way (cuts in the wire insulation,
improperl
could be developed throu
develops on an

This situation ma
and DC
NNMA CERTIFICATION HANDBOOK
in
wire clamps are recommended.

To obtain more information on corrosion, a
is:

Allow approximatel
freezer compartment door. Place
corner of the coolin

in cooling first. If you notice a cooling effect at this point, then

be
the unit is functionin

Close the refri
on AC until it c
stat is operatin
tion.

Now, disconnect the AC suppl
that the cabinet interior will warm up and allow the thermostat to
demand coolin

As soon as the unit’s compressor be
refri
within 10 to 20 minutes indicatin

insulated connections, etc.), a voltage potential

metal parts exposed to water.

rounds are common and wiring is protected per

to insure that insulation has not been damaged. Plastic

BOAT AND YACHT CORROSION CONTROL

Yacht Corrosion Consultants, Inc.

b

2368 Eastman Ave. #6, Ventura, Ca. 93003.

plate. This is the area of the plate that will
properly.

erator door and allow the refrigerator to operate

cles or shuts itself off. This indicates the thermo-

and that the refrigerator is cooling on AC opera-

.

erator door, allowing the unit to run. It should shut off or cycle

hout the boat in which corrosion

be avoided by wiring the boat so that AC

1987). Inspect all wir-

five minutes of operation and open the

our hand at the upper left rear

and open the refrigerator door so

ins to operate, close the

the DC operation is correct.

+12 volts

ood reference

Initial Start-up

Before operating the refrigerator for the first time, check to see

that the AC and DC suppl

reen power indicator will be illuminated. Connect the vehicle to
the external power suppl
next to the thermostat to the "ON" position. Turn the thermostat
dial to the number "3" settin
can hear the compressor sound b

erator.

refri

connections are correct. If normal, the

of 120 volts. Turn the switch located

. The unit should be operating. You

placing your ear next to the

Figure 2

4

MAINTENANCE OF YOUR REFRIGERATOR

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Cleaning Cabinet and Door

Wipe with a soft, dry cloth. To remove dirt, use a cloth mois­tened b
After cleanin

a warm neutral detergent solution. Never use hot water.

CAUTION:

Never use a brush, powder soap, cleanser, acid, benzene,

asoline, or thinner. These tend to leave scratches on the coat-

in

, wipe with a dry cloth.

.

Gasket (door cushion)

Wipe away dirt with a soft cloth moistened by a neutral deter-

ent. Do not soak the cloth excessively. If water gets inside, the

insulatin

effect may become temporarily impaired.

Attachments

Wash all attachments in soap suds. Rinse and wipe clean with a

cloth.

dr

To Turn Off The Refrigerator

If you will not be using the refrigerator for a day or two, turn the
thermostat knob to "1". For a lon
to "OFF" and disconnect power b
socket. Also, disconnect the DC power from it’s source.

When not in use, the refri
and dried, and the door left a

er period, set the On-Off switch

removing the AC plug from it’s

erator should be emptied, cleaned,

ar.

Information on battery power

The battery power required for the operation of the refrigerator is

dependent upon the number of DC appliances bein

pe of operation desired and cycling pattern desired.

t

A batter
A batter

of sustainin

If the total ampera
then the installation of a 72 ampere-hour batter
the re
rechar

Various load re
ampere-hour capacit

Refer to Fi
You will note that in this dia
sources. One source is the vehicle or car battery used exclusivel
for the operation of the engine and accessory equipment such as
head li
ances within the recreational vehicle or boat. This batter
is referred to as the accessor
for that purpose.

Both of these batter

enerator which is powered by the vehicle engine. This chargin
device should be of adequate amperage rating so that a short
en
alternator has a minimum ratin

Check

Volta

must also be sufficiently charged to prevent overdraw.

is rated usually in ampere-hours; that is, it is capable

it’s rated ampere capacity for a period of one hour.

e load of the vehicle is high (25 amperes),

uired power for any length of time unless it is aided by a

source such as an alternator or generator.

uirements of the vehicle’s DC system dictate the

that should be installed.

ure 3 for the suggested dual-battery wiring diagram.

ram there are 2 separate batter

hts. The other source is for the operation of the DC appli-

or house battery and is used solel

sources are charged by one alternator or

ine run will bring the batteries up to full charge. The standard

of 60 amperes.

our voltage regulator or cut-out for correct charging level.

e should be 13.5 to 14.5. volts to the battery.

used, the

will not provide

source

Defrosting

Set the On-Off switch to "OFF". When frost is melted, wipe the
compartment plates with a soft, dr
set the dial to "1" before

one the next morning.

Do not use sharp objects to chip ice from the cooling plates.

cloth. A better suggestion is to

ou retire for the night. The frost will be

Figure 3

5

Important Points Regarding Battery-Powered

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(B)

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(B)

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Sources

The dual battery switch or battery isolator is an important compo­nent as it permits the alternator or
accessor
vehicle en
ances to the accessor
is idle or stopped. Thus it assures that the vehicle batter
charged for starting the engine. The batteries referred to in Figure
3 are two 6 volt
12 volts. Golf cart batteries are su
sons:

battery and the vehicle battery during operation of the

ine. However, it limits the current draw of the DC appli-

1. Lar

er plate construction.

2. Deep draw characteristics.
h ampere-hour rating.

3. Hi

battery source when the engine or vehicle

olf cart batteries connected in series to provide

enerator to charge both the

is full

ested for the following rea-

provide poor performance of the refri
the resonance sprin

5. When connectin
the correct polarit
nected to ne
the unit down. The wire leads must be disconnected and re­connected properl

s in the compressor.

the refrigerator to the DC supply, observe

. If the polarity is reversed (positive con-

ative terminal), the circuit protection will shut

, and circuit breaker reset.

erator, and damage

Installation Of Decorator Panel

Prepare the panel by cutting to size as per illustration. Use di­mensions shown in Fi
not exceed 3/16"

ure 4. The maximum panel thickness must

4.76mm).

The standard
205 ampere-hours. When two of these batteries are connected in
series, the result is 12 volt DC at 185 or 205 ampere-hour capac-

.

it

The DC suppl
post of one batter

The power converter or solid state batter
ure 3 is an essential item for batter

The converter is operated on 120 volt AC and should have an
output ratin

. During 120 volt operation, the converter is used to

capacit

e the batteries and to operate t he DC appliances. It has the

char

to operate items such as lighting, water pumps, exhaust

capacit
fans, and sanitar
teries. Char

The Norcold dual volta
AC to DC or from DC to AC. When a power suppl
AC is connected to the vehicle, the volta

ized and disconnects the unit from DC operation. This unique
feature assures 120 volt operation when available and permits the
power converter to concentrate it’s char
ies or to other DC appliances.

When the AC suppl

reverts to DC operation. Setting the On-Off switch to the

icall
"OFF" position will prevent operation on AC or DC.

The followin

erator:

1. The thermostat dial is numbered from 1 throu
number 5 settin
conserve batter
dial at the lowest settin
tion. This practice will reduce the runnin
erator and draw less current from the batter
or 3 is a normal position.

2. Alwa
able, especiall
the refri
the initial start-up ma
eration before refri

cling begins.

c

3. Never emplo
Off switch is set to the "OFF" position or the 12-volt DC
leads to the refri
dama
permitted to ener

4. The use of a commercial 12-volt DC to 120-volt DC solid
state inverter, converter,
with 120 volt AC output is not recommended for operatin
the refrigerator unless the manufacture of the foremen­tioned devices
AC plus or minus 10 percent and the fre
hertz plus or minus one hertz. Devices that cannot meet
the specified tolerances do not hold the re

olf cart battery has a rating of approximately 185-

to the refrigerator is connected to the negative

and to the positive post of the other battery.

charger shown in Fig-

-operated systems.

of 12.6-l4.5 volts DC at approximately 20-50 ampere

facilities while maintaining or charging the bat-

rate varies from 5-20 amperes per hour.

e refrigerator automatically switches from

of 120 volts

e selection relay is ener-

facilities to the batter-

is disconnected, the refrigerator automat-

are suggestions for efficient operation of the refrig-

h 5, with the

the maximum coldest position. In order to

power, it is advisable to set the thermostat

that will provide adequate refrigera-

time of the refrig-

. A setting of 2

s operate the refrigerator on 120 volts AC when avail-

during initial start-up or pull-down cycle of

erator. Depending upon the ambient temperature,

require 1-2 hours of continuous op-

erator temperature are attained and unit

uick-chargers" to the battery unless the On-

erator are disconnected. Possible inverter

e will occur if the high voltage of "quick chargers" is

ize the DC circuits of the inverter.

asoline or belt-driven generator

uarantee the output voltage to be 120 volts

uency to be 60

uired frequency,

Figure 4

1. Remove the door front decorative strip b
screws and pullin

2. Insert one of the vertical sides of the panel

roove formed by the door frame outer flange (C) and the

door front.

3. Gentl

4. Slide the panel

5. Install the door decorative strip

CAUTION: DO NOT OVER TIGHTEN SCREWS.

flex the panel (B) so that the opposite side may be

slipped into the correspondin

e fits into the bottom groove.

ed
tween the top ed

cure with screws.

the decorative strip off.

roove.

downward so that the lower horizontal

to cover the gap be-

e of panel (B) and door frame (C). Se-

removing the

into the

6

Drawing No: C-16296C

Wiring Diagram DE-704D

7

LIMITED WARRANTY

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NORCOLD

P.O. Box 180

, Ohio 45365

Sidne

This Limited Warrant

new refrigerating equipment ("Equipment") supplied by the Company, excluding glassware and electric light bulbs, and will be

an
effective for a period of one
times have been in possession of and used b

A. The Compan

ters for a period of one
and re-installing the refrigerator only when necessary to replace a defective part. The Company will pay inbound and outbound
transportation costs of an
chaser must pa

B. The followin

this Limited Warrant
chaser must present evidence
still within the warrant
immediatel
tained. Inabilit

incurred are solely for the account of the original consumer-purchaser.

thereb

C. The Compan

Defects which arise by reason of transit damage, misuse, neglect or accident.
Manufacturing defects found at the time of purchase which are not communicated to the Company within 30 days.
Defects in glassware and electric light bulbs.
Defects arising from improper installation or adjustment of the Equipment.
The need for normal maintenance of this refrigerator, including the cleaning of the flue dilution assembly and orifice, and the

ustment of the gas pressure regulator in the case of gas-electric models.

ad

Defects arising from the improper use of parts or parts not manufactured or supplied by the Company in the course of re-

pairs or replacements to the E

D. Emplo

E. The Compan

F. ANY IMPLIED WARRANTY OR MERCHANTABLITY OR FITNESS FOR A PARTICULAR PURPOSE:

G. This Warrant

ees and agents of the Company, and its authorized service representatives, have no authority to vary the terms of the
Limited Warrant
Canada. The Compan
nal consumer-purchaser.

similar loss or dama
this Limited Warranty. Some states do not allow the exclusion or limitations of any incidental or consequential damages so the
above limitation or exclusion ma

APPLICABLE TO A PART OR PARTS OF THE REFRI GERATOR IS LIMIT ED TO A PERIOD OF ONE YEAR FROM DATE

OF PURCHASE.

SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IM PLIED WARRANTY LASTS. THE ABOVE LI MITA-

TIONS MAY NOT APPLY TO YOU.

is given by NORCOLD, Div. of The Stolle Corporation, ("Company") to the original consumer-purchaser of

ear from date of original purchase. The Company warrants, provided that the Equipment shall at all

the original consumer-purchaser, that:

will provide free service and replacement of defective parts at no charge at all authorized Norcold Service Cen-

ear from the date of original purchase. This Limited Warranty covers labor costs incurred in removin

defective part, for a 1-year period commencing with date of purchase. The original consumer-pur-

all expenses incurred in making the equipment available at one of the Norcold Service Centers.

procedure shall be followed by any original consumer-purchaser desiring to obtain performance under the terms of

. The refrigerator must be brought to any of the Norcold Service Centers and the original consumer-pur-

to identify the original consumer-purchaser; and (2) that the item claimed to be defective is

coverage. If the original consumer-purchaser is unable to accomplish this task, written notice should be

directed to Norcold and advice will be promptly given concerning the manner in which warranty service may be ob-

to physically bring the refrigerator to a Norcold Service Center will not void the warranty, but any additional costs

will not be liable under this Limited Warranty for any of the following:

uipment.

, which applies only to Equipment purchased and installed in the United States of America and the Dominion of

reserves the right to make any improvements or changes in parts of models without notice to any origi-

shall not be liable or in any way responsible for any loss or damage to person or property, or lost profits or other

e that may result or be claimed to have resulted from a defect in any part of the Equipment covered b

not apply to you.

ives you specific legal rights, and you may also have other rights which vary from state to state.

SERVICE INFORMATION

IF SERVICE OR PARTS ARE REQUIRED, CONTACT THE
NEAREST NORCOLD SERVICE CENTER.

A NORCOLD SERVICE CENTER BOOKLET HAS BEEN
INCLUDED WITH THE REFRIGERATOR INFORMATION
PACKET.