instructions for use

DTNA 38NDTNA P3

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INDEX

CHAPTER 1: INSTRUCTIONS FOR USE ..................................................................................................... 2

1.1 GENERAL INFORMATION ....................................................................................................................................3

1.2 WIRING SYSTEM .....................................................................................................................................................4

1.3 WIRING CONNECTIONS ......................................................................................................................................4

1.4 SETTING THE INSIDE TEMPERATURE .............................................................................................................5

1.4.1 DEFROSTING ............................................................................................................................................................5

1.5 MAINTENANCE ........................................................................................................................................................5

1.5.1 CLEANING .................................................................................................................................................................5

1.6 USEFUL ADVICES ....................................................................................................................................................5

CHAPTER 2: HOW TO DETECT FUNCTIONAL PROBLEMS AND FIX THEM ........................................ 6

2.1 NO COOLING/NO OPERATIONS FROM COMPRESSOR AND FAN .................................................................................7

2.2 NO COOLING / COMPRESSOR AND FAN IS OPERATING ......................................................................8

2.3 FORM A HOW TO FIX LAMP ..............................................................................................................................9

2.4 FORM B HOW TO SHORT CIRCUIT THERMOSTAT ON ECU ............................................................... 10

2.5 FORM C HOW TO REPLACE THERMOSTAT ............................................................................................... 11

2.6 FORM D HOW TO REPLACE ECU (ELECTRONIC CONTROL UNIT) ...................................................17

2.7 FORM E HOW TO TEST AND REPLACE FAN ..............................................................................................18

CHAPTER 3: HOW TO REPLACE AESTHETICAL PARTS ........................................................................20

3.1 PART 1: DOOR (DTNA 38N) ...............................................................................................................................21

3.2 PART 2: EVAPORATOR DOOR (DTNA 38N) ................................................................................................ 22

3.3 PART: HANDLE (DTNA 38N) ............................................................................................................................ 23

3.4 PART 1: DOOR - (DTNA P3) .............................................................................................................................. 24

3.5 PART: HANDLE - (DTNA P3) ............................................................................................................................. 26

3.6 PART 1: DOOR PANEL - (DTNA P3) .................................................................................................................27

CHAPTER 4: SPARE PARTS .......................................................................................................................28

4.1 DTNA 38N - CABINET ......................................................................................................................................... 30

4.2 DTNA 38N - COOLING UNIT ............................................................................................................................31

4.3 DTNA P3 - CABINET ............................................................................................................................................ 32

4.4 DTNA P3 - COOLING UNIT .............................................................................................................................. 33

4.5 SPARE PARTS LIST ............................................................................................................................................... 34

1

CHAPTER 1INSTRUCTIONS FOR USE

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DTNA 38N-P3

1.1 GENERAL INFORMATIONIndel B refrigerators guarantee performance and reliability. Provided with a totally hermetic compressor, they offer a minimal power consumption and noise level. All the models are extremely easy to install. They can work even if they are assembled at a slant of up to 30°.In order to make sure that your Indel B refrigerator works as efficiently as possible, please pay attention to the following general instructions:• Opening the door of the refrigerator uselessly increases the waste of energy;• Proper ventilation of the compressor and of the condenser unit reduces the energy consumption

and also ensures the yield;• The wiring system of the vehicle is in proper condition. Routinely check the batteries and the charge

level. Follow the instructions about the cable cross sections and the fuse connections strictly;• Keep the inside of the refrigerator clean and dry. Remove any condensate water which might gather

in the tray under the freezer compartment;• Keep the door of the refrigerator slightly open in order to air it out if you do not use it for a long

time, for example in winter.

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The refrigerators are pre-set for being assembled in a niche of the truck. It is very important for the refrigerating unit, consisting of the compressor and the condenser, to be well ventilated, with the cool air coming in from the bottom and going out from the top. You must ensure proper ventilation of the refrigerating unit.

1.2 WIRING SYSTEMTo have the refrigerator operate with the vehicle battery, please refer to the instruction manual of the vehicle’s manufacturer.

WIRING SYSTEM: FUNCTIONS AND FEATURES (WITH AUXILIARY BATTERY)The electronic unit of the compressor is a piece of electronic equipment which pilots the motor of the compressor and carries out all the controls and electrical protection of the system. Its main features are the following:• Protection of the battery with automatic turning off of the compressor when the feeding voltage reaches the

minimum threshold (cut out)• The compressor will start up automatically again when the voltage goes back to normal values (cut in).

TABLE FOR BATTERY SAVER TRIPPING VOLTAGES

FEEDING CUT OUT CUT IN

12V 9,6V 10,9V

1.3 WIRING CONNECTIONSWhen you connect the refrigerator, you must remember the following:1) Use cables having the proper cross section (see table) to make the feeding lines. If possible, such cables

should be without any joints on the leads which could lead to voltage drops.2) If the wiring system of the vehicle is insufficient or not properly sized for the refrigerator, connect it directly

to the battery without using intermediate wiring.3) Any switches must have a breaking load not less than 20 A4) Make sure the polarity is right: connect the red cable to the positive terminal (+) and the black cable to the

negative terminal (-).5) Protect the feeding line with a 15 A fuse.

CROSS SECTION CABLES (mm2)MAXIMUM LENGHT OF CABLES IN METRES

12V

2,5 (13 awg) 2,5 (8 ft)

4 (11 awg) 4 (13 ft)

6 (9 awg) 6 (20 ft)

10 (7 awg) 10 (33 ft)

WARNING Never connect bare electric wires, and use only connectors of a size suitable to the cross section of the cable being used.

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1.4 SETTING THE INSIDE TEMPERATUREThe refrigerators are provided with a manual thermostat. Turn it clockwise to lower the temperature, and turn it counterclockwise to raise the temperature and activate the ON-OFF switch in its end position. The knob of the thermostat is located inside the refrigerator, under the lamp.

1.4.1 DEFROSTINGDefrosting must be carried out when the ice layer is thicker than 4 mm.Set the thermostat at the OFF position. While defrosting, keep food and beverages in a cool place. Do not use any sharp metal object to remove the ice or frost. Do not start the refrigerator up again until it is completely defrosted and dry. Also empty the main tray.

1.5 MAINTENANCE WARNING

Before every maintenance operation, disconnect the power supply from the electric outlet. In case of refrigerator wrong operation, contact the Indel B Service Center.

1.5.1 CLEANINGPeriodically clean the inside of the refrigerator using sodium carbonate dissolved in lukewarm water. Avoid using abrasive products, cleaners or soaps. After cleaning, rinse with fresh water and dry with care. When you are not using the refrigerator, clean and dry its inside to prevent mould and bad smells formation.

WARNINGDo NOT wash the refrigerator drawers and parts in a Dishwasher.

1.6 USEFUL ADVICESIf the refrigerator does not work, or if it works incorrectly, before referring to our after sales service (Customer Care Dept- Indel B North America - ph 502-867-2888), make sure that: a) refrigerator has correct voltage input.b) the circuits are connected correctly.c) the ventilation grids are not obstructed.d) the refrigerating unit is not near a source of heat.e) the refrigerator fuse is not blown.f) freezer/evaporator has not been punctured or damaged. This type of damage is considered to be non-warrantable.

1st - DTNA Service Bulletins, pertaining to Indel B refrigerators, should be reviewed prior to replacing any components.

2nd - If nothing is running or only fan is running, using a volt meter on 20v DC setting, check voltage at fridge with truck off and fridge off . What is voltage? Turn fridge on and see if voltage drops below 11 volts.  If yes, there is most likely a wiring issue with the truck. If no, proceed to next step (for details go to Chapter 2 “How to detect functional problems and fix them”).

3th -  If fan does not run, bypass thermostat wires on ECU terminal C to T. If fan now runs, also check if compressor is now running and if yes replace thermostat.

4th - If fan runs and compressor does not, change ECU and check if compressor is now running.

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CHAPTER 2HOW TO DETECT FUNCTIONAL

PROBLEMS AND FIX THEM

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2.1 NO COOLING/NO OPERATIONS FROM COMPRESSOR AND FAN WARNING

Before replacing the refrigerator, prior be sure that voltage is ok and trouble shooting steps described in these forms have been followed!

Not ok

Ok

Ok

Replace fuse. If fuse continues to blow, diagnose vehicle wiring.

Ok

Replace fan

Replace thermostat.

Turn Cab Load Disconnect Switch to ON and check refrigerator fuse.

Ok

Check that thermostat is switched ON. Switch it to the maximum setting. Wait 60 seconds to see if compressor starts to work (a delay of 60

seconds is normal after a reset).

Not ok

Remove refrigerator from cabinet to gain access to electrical connections.

Check if cables are connected properly to ECU. Measure the input voltage to refrigerator

(must be above 11v.)

Ok

Disconnect fan cables “+” and “F” from ECU. Wait 60 seconds to see if compressor starts

to work

Not ok

Disconnect circuits from ECU terminals "C"and "T". Make a jumper wire and bridge the

"C" and "T" terminals toghether

Not ok

Replace ECU.

Not ok

If all of the above steps have been followed, and refrigerator still does not operate, replace

refrigerator.

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2.2 NO COOLING / COMPRESSOR AND FAN IS OPERATING

WARNING Before replacing the refrigerator, prior be sure that voltage is ok and trouble shooting steps described in these forms have been followed!

Check that thermostat is switched ON. Switch it to the maximum setting.

Ok

Check if the temperature on the evaporator after 30 minutes in below 32°F

Not ok

Check if the freezer/evaporator has not been punctured or damaged

Ok

Remove refrigerator from cabinet to gain access to cooling unit.

Disconnect circuits “C” and “T” from ECU. Make a jumper wire and bridge “C” and “T”

terminals at ECU.

Not ok

If all of the above steps have been followed, and refrigerator still does not operate,

replace refrigerator.

This type of damage is considered to be non-warrantable

Replace thermostat.

Not ok

Ok

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2.3 FORM A HOW TO FIX LAMPThe interior lighting is installed at the top. Check to make sure that a proper 12 V light bulb has been installed, based on the voltage of the electrical system to which the refrigerator has been connected. The consignment includes a 12 V light bulb (Max power: 3 W). In order to replace the light bulb, remove the plastic rivet, slide the lighting unit’s glass down using the appropriate lever. Replace the light bulb and to return the lighting unit to its original state. Time: 5 minutes

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2.4 FORM B HOW TO SHORT CIRCUIT THERMOSTAT ON ECUTime: 3 minutes

Disconnect the brown and the blue wire from ECU on positions C, P and T (1)

Make a bridge between C and T (2)

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2.5 FORM C HOW TO REPLACE THERMOSTATTime for repair: 35 minutes

Remove the plastic rivet on the left of the lamp holder

Unscrew evaporator from cabinet

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Unscrew the lamp holder (3 screws)

Remove the thermostat knob pulling it out

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DTNA 38N-P3

Disconnect the wires from thermostat

Unscrew the nut of the thermostat

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Unscrew the support of the thermostat

Unscrew the fixing supports of the evaporator

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DTNA 38N-P3

Pull out the support of the thermostat sensor

Thermostat sensor support

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Remove the rubber protection pipe

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2.6 FORM D HOW TO REPLACE ECU (ELECTRONIC CONTROL UNIT)Time: 15 minutes

Remove all the wires from the ECU

Unscrew the ECU and remove it

Remove the ECU connector from the compressor with the help of a screwdriver

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2.7 FORM E HOW TO TEST AND REPLACE FANTime: 30 minutes

Cut the plastic strip

Disconnect the wire from + and F

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DTNA 38N-P3

Unscrew the fixing plastic bracket of the wires

Unscrew the condenser support

Cut the plastic strips of the fan to uninstall it

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CHAPTER 3HOW TO REPLACE AESTHETICAL

PARTS

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3.1 PART 1: DOOR (DTNA 38N)Time: 10 minutes

Unscrew the bottom hinge (3)

Unscrew the top hinge and remove the door

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3.2 PART 2: EVAPORATOR DOOR (DTNA 38N)Time: 5 minutes

3 after the operation 2 pivots go out from the holes on the plastic frame

2 Bend the door using the two hands pushing from the sides

1 open the evaporator door.

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3.3 PART: HANDLE (DTNA 38N) Time: 10 minutes

2 Insert the pivot of the handle from the top of the door and push it inside.Place the new handle making enter the pivots of the spring in the two holes

1 Raise up the handle and push the spring towards the middle.The handle and the pivot will be unfixed

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3.4 PART 1: DOOR - (DTNA P3)Time: 10 minutes

Unscrew the ventilation top grid (1) Unscrew the ventilation top grid (2)

Unscrew the ventilation top grid (3) Unscrew the ventilation top grid (4)

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Unscrew the top hinge

Remove the door (1)

Remove the door (2)

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3.5 PART: HANDLE - (DTNA P3)Time: 10 minutes

Unscrew the two frontal screws of the handle Unscrew the bottom of the handle

Remove the bottom part of the handle Remove the handle

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DTNA 38N-P3

After having removed the handle, pull out the frame with the help of a screwdriver

Keep out the bottom frame

let slide the panel from the bottom

3.6 PART 1: DOOR PANEL - (DTNA P3)Time: 12 minutes

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CHAPTER 4SPARE PARTS

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L176

L017

L028

L018

L240

L184

L085

L179

L180

L007

L183

L007

L053

L084

L240

DTNA 38N - CABINET

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L133

L181

L017

L017

L018

L028

L003

L010

L083

G52

4

G13

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L009

DTNA 38N - COOLING UNIT

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L174

L173

L004

L027

L033

L006

L030

L025

L026

L011

L036

L158

L031

L002

L008

L039

L017

L028

L018

L021

L172

L045

L175

DTNA P3 - CABINET

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L133

L181

L017

L017

L018

L028

L003

L010

L002

G52

4

G13

66

L009

DTNA P3 - COOLING UNIT

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4.5 SPARE PARTS LISTIndel B p/n Description DTNA 38N DTNA P3

G524 COMPRESSOR x xG1366 ECU x xL002 EVAPORATOR xL003 CONDENSER x xL004 INNER SHELF xL006 Lower door big balcony without bottle dividers xL007 Bottle retainer with dividers xL008 Evaporator door xL009 Filter x xL010 Fan x x

L011 Complete foamed plastic door with front panel, balconies, spacers, metal retainers and handle. Fully assembled x

L017 Thermostat x xL018 Thermostat knob x xL021 Black top plate with hardware xL025 Upper door standard balcony without bottle dividers xL026 Upper door standard balcony metal retainer xL027 Lower hinge with pin, including screws xL028 Thermostat/light housing, with ceiling x xL030 Lower door big balcony metal retainer xL031 Complete plastic handle with screws xL033 Water tray xL036 HOOKING PROFILE DOOR PANEL xL039 Water tray slide xL045 Top hinge xL053 Evaporator door xL083 Evaporator x

L084 Evaporator plastic parts including magnets(frame and left/right sides ) x

L085 Drip tray xL133 Led bulb light ( white colour ) - 12V/24V x xL158 Standard door panel xL172 Top ventilation grid xL173 Bottom ventilation grid xL174 Bottom fixing bracket xL175 Top fixing brackets xL176 Top flange xL179 Inner shelf xL180 Complete door xL181 Power supply cord x xL183 Handle kit xL184 Fixing bracket xL240 Hinges Kit x

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