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DTNA 38NDTNA P3
DTNA_17-10-2018
INSTRUCTIONS FOR USE
INDEL B S.p.A.Via Sarsinate, 2747866 S. Agata Feltria (RN) ITALYTel.: +39 0541 848 711 - Fax: +39 0541 848 [email protected]
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ENGLISHSOMMARIO
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 TO DISCONNECT THE LOAD DUMP CIRCUIT AND CONNECT DIRECTLY THE ECU ..... 10
2.5 FORM C HOW TO SHORT CIRCUIT THERMOSTAT ON ECU ......................................................... 11
2.6 FORM D HOW TO REPLACE THERMOSTAT .................................................................................... 12
2.7 FORM E HOW TO REPLACE ECU (ELECTRONIC CONTROL UNIT) ............................................... 18
2.8 FORM F HOW TO TEST AND REPLACE FAN ................................................................................... 19
2.9 FORM G HOW TO FIX THE PCB LOAD DUMP TO THE ECU .......................................................... 21
CHAPTER 3: HOW TO REPLACE AESTHETICAL PARTS ................................................................... 22
3.1 PART 1: DOOR (DTNA 38N) .............................................................................................................. 23
3.2 PART 2: EVAPORATOR DOOR (DTNA 38N) ...................................................................................... 24
3.3 PART: HANDLE (DTNA 38N) ............................................................................................................. 25
3.4 PART 1: DOOR - (DTNA P3) .............................................................................................................. 26
3.5 PART: HANDLE - (DTNA P3) .............................................................................................................. 28
3.6 PART 1: DOOR PANEL - (DTNA P3) .................................................................................................. 29
CHAPTER 4: SPARE PARTS .................................................................................................................. 30
4.1 DTNA 38N - CABINET...................................................................................................................32
4.2 DTNA 38N - COOLING UNIT.........................................................................................................33
4.3 DTNA P3 - CABINET.....................................................................................................................34
4.4 DTNA P3 - COOLING UNIT...........................................................................................................35
4.5 SPARE PARTS LIST ..............................................................................................................................35
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INSTRUCTIONS FOR USE
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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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ENGLISHThe 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
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.
FEEDING CUT OUT CUT IN
12V 9,5V 11V
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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
WarningBefore 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”).
3rd - If the PCB load dump circuit board has a poor connection on the ECU,place a zip tie around the ECU/circuit board and verify operation.
4th - 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.
5th - If fan runs and compressor does not, change ECU and check if compressor is now running.
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HOW 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
Ok
Replace fuse. If fuse continues to blow, diagnose vehicle wiring.
Ok
Replace PCB load dump.
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 and PCB load dump are connected properly to ECU. Measure the input
voltage to refrigerator (must be above 11v.)
Ok
Remove PCB load dump and connect main “+” and “-” circuits directly to corresponding
terminals at ECU.
Not 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 LAMP
The 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 TO DISCONNECT THE LOAD DUMP CIRCUIT AND CONNECT DIRECTLY THE ECUTime: 3 minutes
Disconnect all the wires from the load dump circuit
Remove the load dump circuit from the ECU
Connect the black wire on - and he red wire on +
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2.5 FORM C HOW TO SHORT CIRCUIT THERMOSTAT ON ECU Time: 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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2.6 FORM D 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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Unscrew the nut of the thermostat
Disconnect the wires from thermostat
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Unscrew the support of the thermostat
Unscrew the fixing supports of the evaporator
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Pull out the support of the thermostat sensor
Thermostat sensor support
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Remove the rubber protection pipe
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2.7 FORM E HOW TO REPLACE ECU (ELECTRONIC CONTROL UNIT)Time: 15 minutes
Remove all the wires from the ECU
Remove the ECU pushing it out with the help of a screwdriver
Remove the load dump circuit
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2.8 FORM F HOW TO TEST AND REPLACE FANTime: 30 minutes
Disconnect the wire from + and F
Cut the plastic strip
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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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2.9 FORM G HOW TO FIX THE PCB LOAD DUMP TO THE ECU
If you find that the circuit board has a poor/loose connection on the ECU, place a zip tie around the ECU/circuit board and verify operation. If this does not resolve the issue continue with normal troubleshooting.
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HOW 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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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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SPARE PARTS
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DT
NA
A22
-730
04-0
00 -
CA
BIN
ET
SP
AR
E P
AR
TS
Rev
. 10/
2017
L176
L017
L028
L018
L178 L1
84
L085
L179
L180
L007
L183
L007
L053
L084
L177
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DT
NA
A22
-730
04-0
00 -
CO
OLI
NG
UN
ITS
PAR
E P
AR
TS
Rev
. 10/
2017
L133
L181
L017
L017
L018
L028
L003
L010
L083
G52
4
G13
2L1
82
L009
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DT
NA
A22
-747
75-0
00 -
CA
BIN
ET
SP
AR
E P
AR
TS
Rev
. 12/
2016
L174
L173
L004
L027
L033
L006
L030
L025
L026
L011
L036
L158
L031
L002
L008
L039
L017
L028
L018
L021
L172
L045
L175
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DT
NA
A22
-747
75-0
00 -
CO
OLI
NG
UN
ITS
PA
RE
PA
RTS
Rev
. 12/
2016
L133
L181
L017
L017
L018
L028
L003
L010
L002
G52
4
G13
2L1
82L0
09
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4.5 SPARE PARTS LISTIndel B p/n Description DTNA 38N DTNA P3
G132 ECU x x
G524 COMPRESSOR x x
L002 EVAPORATOR x x
L003 CONDENSER x x
L004 INNER SHELF x
L006 Lower door big balcony without bottle dividers x
L007 Bottle retainer with dividers x
L008 Evaporator door x
L009 Filter x x
L010 Fan x x
L011Complete foamed plastic door with front panel, balconies, spacers, metal retainers and handle. Fully assembled
x
L017 Thermostat x x
L018 Thermostat knob x x
L021 Black top plate with hardware x
L025 Upper door standard balcony without bottle dividers x
L026 Upper door standard balcony metal retainer x
L027 Lower hinge with pin, including screws x
L028 Thermostat/light housing, with ceiling x x
L030 Lower door big balcony metal retainer x
L031 Complete plastic handle with screws x
L033 Water tray x
L036 HOOKING PROFILE DOOR PANEL x
L039 Water tray slide x
L045 Top hinge x
L053 Evaporator door x
L083 Evaporator x
L084 Evaporator plastic parts including magnets ( frame and left/right sides ) x
L085 Drip tray x
L133 Led bulb light ( white colour ) - 12V/24V x x
L158 Standard door panel x
L172 Top ventilation grid x
L173 Bottom ventilation grid x
L174 Bottom fixing bracket x
L175 Top fixing brackets x
L176 Top flange x
L177 Top hinge x
L178 Bottom hinge x
L179 Inner shelf x
L180 Complete door x
L181 Power supply cord x x
L182 Load dump circuit x x
L183 Handle kit x
L184 Fixing bracket x
