Dometic NDE1402 User manual

INSTALLATIONAND
OPERATING INSTRUCTIONS
REFRIGERATOR FOR ELECTRIC OPERATION
NDE1402
USA Corporate Office CANADA
Service Office 2320 Industrial Parkway Elkhart, IN 46515 Dometic Distribution Inc.
DometicCorporation 866LangsDrive
2320IndustrialParkway
Elkhart,IN 46515 For Service Center Assistance N3H2N7Canada
Phone:[phone] Call:800-544-4881 Phone:[phone]
English825123100 MO-FO 0324 (French 3309768.004)
®
®
Contents: Page
Installation 4
Operating Instructions 8
Maintenance & Service 11
FOR YOUR SAFETY
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
WARNING: Improper installation,
adjustment, alteration, service or
maintenance can cause injury or
property damage. Refer to this
manual. For assistance or additional
information consult a qualified
installer, service agency or the sup-
plier.
Pour votre sécurité
Ne pas entreposer ni utiliser de l’essence ni
d’autres vapeurs ou liquides inflammables à
proximité de cet appareil ou de tout autre
appareil.
Avertissement: Une installation, un réglage,
une modification, une réparation ou un
entretien non conforme aux normes peut
entraîner des blessures ou des dommages
matériels. Lisez attentivement le mode d’em-
ploi fourni avec l’appareil. Pour obtenir de
l’aide ou des renseignements supplémentai-
res, consultez un installateur ou un service
d’entretien qualifié ou le fournisseur.

3
Refrigerator control panel
FIG. 2
AC
ON
OFF
COLDEST
12345
12
A
B
LEGEND
1. Main Power Button ON/OFF
2. Temperature Selector Button
A. AC Indicator Lamp
B. Temperature Indicator Lamps
12V DC
Thermofuse
Heaters
Power module
and fuses
Protection cover
12 Volt
Terminal block Flexible cord, Refrigerator
AC relay
Drain water hose
FIG. 1

4
INSTALLATION
GENERAL INSTRUCTION
This appliance is designed for storage of foods and
storage of frozen foods and making ice.
This appliance is certified under the latest edition of
ANSI Z21.19•CSA 1.4 Refrigerators using gas fuel.
The installation must conform with local codes, or in
absence of local codes, the following standards as ap-
plicable.
In the U.S. the installation must conform with:
1. Recreational Vehicles Code,ANSIA119.2 (latest
edition)
2. Manufactured Home Construction and Safety
Standard, Title 24 CFR, Part 3280.
If an external electrical source is utilized, the refrigera-
tor, when installed, must be electrically grounded in ac-
cordance with local codes or, in the absence of local
codes,theNationalElectrical Code,ANSI/NFPA70- (lat-
est edition).
In CANADA, the installation must conform with:
1. CSAZ240 RV Series, Recreational Vehicles.
2. Current CSA Z240.4, Gas-equipped Recreational
Vehicles and Mobile Housing.
If an external electrical source is utilized, the refrigera-
tor, when installed, must be electrically grounded in ac-
cordance with local codes or, in the absence of local
codes, the Canadian Electrical Code, CSAC22.1, Parts
Iand II - (latest edition).
VENTILATION
The installation shall be made in such a manner as to
provide necessary air circulation over the cooling unit.
Openings for air supply shall have a minimum dimen-
sion of not less than 1/4 inch.
Proper installation requires one lower fresh air intake
and one upper exhaust vent. The ventilation kits shown
inthisinstruction manualhavebeen certifiedforuse with
the refrigerator models listed in the table. For “Certified
Vent System Kits” see page 13.
The ventilation kits must be installed and used without
modification.The lower vent of the recommendedkits is
provided with proper size openings.
The flow of ventilating air must not be obstructed.
Thelower sidevent isfitted witha panel,whichprovides
an adequate access opening for ready serviceability off
the refrigerator. This should be centered on the back of
the refrigerator.
ELECTRICAL CONNECTION
120 Volts AC Connection
Therefrigerator isequipped witha three-prong(ground-
ing) plug for your protection against shock hazards and
shouldbepluggeddirectlyinto a properly grounded three-
prongreceptacle. DO NOTcutor remove the grounding
prongfrom this plug.The free length ofthe cord is2 feet
and therefore recommended that the receptacle be lo-
cated to the right side of the refrigerator (viewed from
therear)and approximately 10inchesfrom thefloor(see
FIG. 3). This allows easy access through the vent door.
The cord should be routed to avoid direct contact with
the burner cover, flue cover or any other components
that could damage the cord insulation.
FIG. 3
10’’
120 VoltAC
receptacle
MAXIMUM TOTAL CONDUCTOR WIRE LENGTH
(in feet and meters)
Wire length AWG
17 ft. 14
5 m
27 ft. 12
8 m
12 Volts DC Connection
TherefrigeratormodelNDE1402requirea continuous 12
volt DC supply to operate the control system.
The connection is made to the positive (+) and negative
(-) terminals of the terminal block on the back of the re-
frigerator. (See FIG. 1). Correct polaritymustbeobserved
when connecting to the DC supply.
Do not use the chassis or vehicle frame as one of the
conductors.
Connect two wires at the refrigerator and route to the
DC supply.
The distance the current must travel from the battery to
the refrigerator dictates the AWG wire size to be used.
Should the wire be too small for the distance, a voltage
drop will result.
Recommended wire sizes are shown below.
The wires from the battery to the refrigerator must be of
large enough size to handle the load. The connections
must be clean, tight and free from corrosion.

5
INSTALLING REFRIGERATOR IN
ENCLOSURE
Securing the Refrigerator
After the refrigerator is put in place, the refrigerator is to
be secured in the enclosure with six screws (not in-
cluded). The screws have to be installed in the following
order:
STEP1: Twoscrews installedthrough the front base,
which includes the lower front strip installation.
The refrigerator is provided with a lower front strip
(shippedasa loosepart).The front strip is to be attached
after the refrigerator is set into the cutout opening.
1. Install the lower front strip by sliding it under the
bottom hinge plates, as shown in FIG. 5.
2. Secure the refrigerator and the lower front strip with
two screws: One screw through each hinge. See
FIG 6.
FIG. 4
The transport support at the rear of the refrigerator can
be removed if necessary for the installation of the refrig-
erator in the enclosure. (See figure above).
NOTE: DO NOT install the appliance directly on
carpeting. Carpeting must be removed or
protectedby a metalor wood panelbeneath
the appliance, which extends at least full
width and depth of the appliance.
Caution: Use care when installing the refrigerator. This
refrigeratoris equippedwith the latest vacuum insulated
panel technology. These insulating panels are located
ontheTop,Back,Bottom, Sides and Doors of the refrig-
erator.
If the surface is punctured, loss of insulation will occur,
resulting in poor refrigerator performance.
NOTE: A wood strip must be in place across the upper
openingof theenclosure. Thetop frameof therefrigera-
tor will be anchored to the wood strip with screws, see
FIG. 10.
The refrigerator must be installed in a substantial enclo-
sure and must be level. When installing the refrigerator
in the enclosure, all areas within the recess in which the
refrigerator is installed must be sealed.
Make sure that there is a complete seal between the
front frame of the refrigerator and the top, sides and
bottom of the enclosure. A length of sealing strip is ap-
plied to the rear surface of the front frame for this pur-
pose,see FIG.4.The sealing should providea complete
isolation of the appliance’s combustion system from the
vehicleinterior.
NOTE: Be careful not to damage the sealing strip when
the refrigerator is put in place.
FIG. 5
FIG. 6

6
Step 2: Two screws installed in the top frame.
Open the doors and fasten the refrigerator with two
screwsthrough theholes underneath the top decoration
panel. See FIG. 7.
Failure to follow the sequence in securing refrigerator in
enclosure can cause leakage between the frame and
cabinet.
Any space between the counter, storage area or ceiling
andtopoftherefrigeratorgreaterden1-1/2inchesshould
be blocked. The heat produced at the rear of the refrig-
eratorwill become trapped in thisspace, making the top
of the refrigerator hot and reduce the efficiency of the
refrigerator.
Drain water hose
Ahole must be drilled through flooring see FIG. 8.
The hole must be drilled in the cut out opening of the
base plate at the rear of the refrigerator. The installer
MUST make sure that the hose does not kink when run
throughthefloor.Sealaroundthehosethat goes through
thedrilled hole. Ifa longer hosethan suppliedis required
to get the water to drain outside of the vehicle, the in-
staller will have to supply the extra length of hose.
STEP 3: Two screws installed in the rear base.
See FIG. 8.
FIG. 7
FIG. 8
Hole for drain
water hose

7
CERTIFIED INSTALLATION
Certifiedinstallationsrequireoneroofventand one lower
side vent.
For “Certified Vent System Kits” see page 13.
Forfurther informationcontactyour dealeror distributor.
METHODS OF INSTALLATION
Themethod ofinstallationis shown in FIG.9. It is essen-
tialthat allmaximum orminimum dimensionsare strictly
maintained as the performance of the refrigerator is de-
pendent on adequate flow of air over the rear of the re-
frigerator.
NOTE: The upper vent should be centered over the
condenser coil at the back of the refrigerator.
VENTILATION HEIGHTS
CLEARANCES
Minimum clearances in inches to combustible materials
are:
G: Top 0
K: Side 0
L: Bottom 0
M: Rear 0
N: See NOTE: Clearance “N” below.
NOTE: Clearance “M” is between the rearmost part of
the refrigerator and the wall behind the refrigerator.
NOTE: Clearance “N” is the distance between the bot-
tom of the lower vent to the roof material. For ventilation
height, see table VENTILATION HEIGHTS
See Figures 9, and 10.
LOWER VENT CUTOUT
13-5/8”
28-5/8”
FIG. 9
Ventilation
height
Condenser
FIG. 10
Installationwithroof Minimum ventilation
vent and lower side vent heights in:
Refrigerator Inches mm
NDE1402 69-1/8 1756
K
L
NOTE: Wood Strip
MUST be in place
G
KNM

8
OPERATING
INSTRUCTIONS
IMPORTANCE OF LEVELING A
REFRIGERATOR
In an absorption refrigerator system, ammonia is lique-
fied in the finned condenser coil at the top rear of the
refrigerator. The liquid ammonia then flows into the
evaporator (inside the freezer section) and is exposed
to a circulating flow of hydrogen gas, which causes the
ammonia to evaporate, creating a cold condition in the
freezer.
When starting this refrigerator for the very first time, the
cooling cycle may require up to four hours of running
time before the cooling unit is fully operational.
Thetubinginthe evaporator section isspecificallysloped
to provide a continuous movement of liquid ammonia,
flowing downward by gravity through this section. If the
refrigerator is operated when it is not level and the ve-
hicle is not moving, liquid ammonia will accumulate in
sections of the evaporator tubing. This will slow the cir-
culation of hydrogen and ammonia gas, or in severe
cases, completely block it, resulting in a loss of cooling.
Any time the vehicle is parked for several hours with the
refrigerator operating, the vehicle should be leveled to
prevent this loss of cooling. The vehicle needs to be
leveled only so it is comfortable to live in (no noticeable
sloping of floor or walls).
When the vehicle is moving, the leveling is not critical,
as the rolling and pitching movement of the vehicle will
pass to either side of level, keeping the liquid ammonia
from accumulating in the evaporator tubing.
OPERATION
This refrigerator is designed to work on 120 voltAC.
The refrigerator require a continuous 12 volt DC supply
tooperatethecontrol system, thecontrolswillwork down
to 9.6 volt DC.
Overall Recess
Refrigerator Dimensions Dimensions
Model Height Width Depth Height Width Depth
ABCHWD
inch 64-17/64 33-11/16 29-5/8 63-3/16 32-3/4 26-1/16
NDE1402 mm 1632 855 752 1605 832 662
This method of installation and these clearances will give you adequate space for service and proper installation.
FIG. 11 Side view View from above
D
HA
D
W
C
B

9
START UP INSTRUCTIONS
A. Acontinuous 12 volt DC supplymust beavailable for
the electronic control to function.
B. Press the main power ON/OFF button (1) to the
DOWN position.
C. Press the TEMPERATURE SELECTOR button (2)
until the lamp at the desired setting is illuminated.
Note: Dependingon ambienttemperature, ifthe set-
ting is left on in “COLDEST” position too long it may
causeoverfreezing.
TO SHUT OFF THE REFRIGERATOR
To shut off the refrigerator press the main power ON/
OFF button (1) to the UP (OFF) position.
This shuts off all DC power to the refrigerator, including
the interior light.
DISPLAY PANEL
A
B
AC
ON
OFF
COLDEST
12345
12
DESCRIPTION OF OPERATING
MODES
LIMP MODE OF OPERATION
This control system contains a feature where it will con-
tinue to operate the cooling system in the event of a fail-
ureofamajoroperatingcomponent.Twodifferentmodes
of operation can occur in this category.
Ifforsomereasonthedisplaymodulebecomes non func-
tional, the refrigerator will continue to operate and the
temperature of the refrigerator will be maintained at the
MIDposition withinnormal temperature tolerances. The
power module will continually attempt to reestablish op-
eration of the display module.
The second limp mode of operation will execute when a
failure of the temperature sensing device or associated
electronic circuitry occurs. If this should occur, the re-
frigerator will run continuously.
The refrigerator will continue to operate in this mode in-
definitely or until a new sensor is installed and the sys-
tem is reset.

10
HOW TO USE THE REFRIGERATOR
FOOD STORAGE COMPARTMENT
Thefood storage compartmentiscompletely closed and
unventilated,whichisnecessary tomaintaintherequired
low temperature for food storage. Consequently, foods
having a strong odor or those that absorb odors easily
should be covered. Vegetables, salads etc. should be
covered to retain their crispness. The coldest positions
in the refrigerator are under the cooling fins and at the
bottom of the refrigerator. The warmer areas are on the
upper door shelves. This should be considered when
placing different types of food in the refrigerator.
Whentherefrigerator is heavily loaded,itwilltakea longer
time to lower the temperature; therefore, to get maxi-
mum efficiency the refrigerator and food items should
beprecooled prior to loading.The shelves should not be
coveredwith paperor plastic,and the food items should
be arranged so air can circulate freely.
If you need more space in the refrigerator you can lift up
the front of the second shelf from the top and push the
shelfin, theshelf willfall downagainst thefinned evapo-
rator. This shelf cannot be relocated to a different posi-
tion within the refrigerator.
The middle shelf is a sliding shelf, to slide out grasp the
front of the shelf and pull forward. Push the shelf in to
returnto originalposition.This shelf cannot berelocated
to a different position within the refrigerator.
The lower door shelf is designed for large containers or
bottles (1/2-gallon milk or juice).
FROZEN FOOD STORAGE
COMPARTMENT
Quick frozen soft fruits and ice cream should be placed
in the coldest part of the compartment, which is on the
top freezer shelf. Frozen vegetables, may be stored in
any part of the compartment.
This compartment is not designed for deep or quick-
freezing of food. Meat or fish, whether raw or prepared,
can be stored in the frozen food storage compartment
providedthey are precooledfirst inthe refrigerator. They
canbe stored aboutthree times longerin thefrozenfood
compartment as compared to the fresh food compart-
ment. To prevent food from drying out, keep it in cov-
ered dishes, containers, plastic bags or wrapped in alu-
minum foil.
Total Refrigerated Volume 13.2 cu.ft.
Ice making
Ice cubes can be made in ice trays placed in the freezer
compartment.Forfaster ice making, the trays should be
placed in direct contact with the aluminum shelf.
Ice will be made more rapidly if the thermostat is set at
its highest position. It is a good idea to do this a few
hours before the anticipated need for ice, but be sure to
move the thermostat back to normal setting, usually
about mid setting when the ice is formed. Food in the
fresh food compartment may be frozen if the setting is
left on “COLDEST” position.
Freezer door
The freezer door has three wire door baskets for frozen
food items, such as bagged vegetable.
Freezer compartment
The freezer compartment has two sliding wire baskets
for more convenient access to the frozen foods.
DEFROSTING
Shutoffthe refrigeratorby pressingthe main power ON/
OFF button to the UP (OFF) position.
Empty the refrigerator, leaving the drip tray under the
finned evaporator, and the cabinet and freezer doors
open. Filling ice trays with hot water and placing them
on the freezer shelves can reduce defrosting time.
When all the frost has melted, dry the interior of the re-
frigeratorand freezer witha cleancloth. Replace allfood
and set the thermostat to the COLDEST temperature
setting for a few hours. Then reset the thermostat to the
desired setting, usually at mid setting.