Technical Data - Isotherm DR 49 Mode D'emploi

5 Technical data

Voltage
Power consumption when compressor is running:
Average consumption:
Average consumption measured at +6°C/43°F in the refrigerator
and 22°C/72°F ambient temperature.
The average consumption is much dependent on the way the
fridge is used and how well the ventilation
is working.
Compressor:
Refrigerant:
Fuse:
Isotherm refrigerators fulfi l valid EMC directives and are CE-marked.
6 Fault fi nding
Fault
Fridge not cold, compressor will
not start.
Compressor makes only short
start attempts.
Compressor runs but no refrig-
eration generated.
Compressor runs long time but
not generating enough cold.
Fuse blows.
If a complicated fault does occur, such as requiring specialist assistance, please contact
Indel Webasto Marine S.r.l. Italy or your local marine distributor for advice.
5
Possible cause
No power supply.
Battery in poor condition.
Faulty thermostat.
Faulty electronic unit.
Bad power supply, too low voltage or
voltage drop at start attempts.
Discharged batteries.
Loss of refrigerant. Leakage in pipes or
evaporator.
Pipes blocked.
Bad ventilation. Condenser too warm.
Cooling fan not working
Too much frost on evaporator.
Door not closing well.
Condenser blocked by dust.
Wrong fuse size.
Faulty electronic unit.
12 or 24 volt DC / 100-240 volt AC
DR 49 & 65: 5 A at 12 V (half at 24 V)
DR 49: 0,8 A at 12 V
DR 65: 0,9 A at 12 V
Danfoss BD35F
R134a, fi lling amount is printed on the sticker
inside the fridge.
15 A for12 volt or 7,5 A for 24 volt respec-
tively.
Action
Check that power is present at electronic unit.
Check fuse.
Check polarity on connectors and cables.
Bridge the thermostat over T-C, see wiring
diagram. If compressor starts, this indicates a
faulty thermostat. If the compressor does not
start, this indicates a faulty electronic unit or
compressor.
Contact an authorized service agent.
A possible leak in the cooling system, contact
an authorized service agent.
Check cables, terminals and other connec-
tions, possible verdigris or corrosion, Clean.
Charge batteries, run the engine or connect a
battery charger. Voltage must be kept above
11.0 V at start attempts.
Pressure and leak test. Check for pipe dam-
ages. Repair possible leak, evacuate and re-fi ll
refrigerant. (All this to be made by refrigeration
specialist).
Improve ventilation for compressor.
Re-place fan.
Defrost.
Check/adjust door position and door seal.
Clean condenser.
Check fuse, 15 A-12 V / 7,5 A-24 V
Exchange electronic unit.