Maintenance; Fuses; Technical Data - Truma Combi D 4 Gebrauchsanweisung

Maintenance

Only original Truma parts may be used for maintenance and
repair work.
– Even out of season, the heater should be operated once a
month for about 10 minutes.
– The safety/drain valve (FrostControl) must be operated regu-
larly (at least twice annually) to remove limescale deposits
and to be certain that it is not blocked.
We recommend the use of suitable commercially available
products to clean, sterilise and maintain the boiler. Products
containing chlorine are not suitable.
The effectiveness of the use of chemicals to combat micro-
organisms in the appliance can be increased by heating the
water in the boiler to 70 °C at regular intervals.
– Set the water temperature to 60 °C.
– Switch on the appliance.
Once the water in the boiler has reached a temperature
of 60 °C, the burner will switch off. The appliance must
stay switched on for at least 30 minutes and no hot water
may be removed. The residual heat in the heat exchanger will
heat the water up to 70 °C.

Fuses

The fuses are located in the electronics, beneath the connector
cover. When replacing a fuse, be sure to use the same type.
Appliance fuse: 10 A – slow-acting – 5 x 20 mm (T 10 A)
Burner fuse: 20 A – slow-acting – 6.3 x 32 mm
Figure 4
T 20 A
T 10 A

Technical data

Determined in accordance with Truma test conditions
Fuel
Diesel as per EN 590
Water capacity
10 litres
Heating time from approx. 15 °C to approx. 60 °C
Boiler approx. 20 minutes (measured according to EN 15033)
Heater + boiler approx. 80 min.
Pump pressure
max. 2.8 bar
System pressure
max. 4.5 bar
Rated thermal output (automatic operating level)
2000 W / 4000 W
Fuel consumption
220 – 452 ml/h (110 ml/h in normal mode with average heat
output of 1000 W)
Air delivery volume (free-blowing without warm air duct)
max. 287 m³/h
Power consumption at 12 V
Heater + boiler 1.8 – 4 A (in control mode between "Off" and
"Lowest operating level" less than 1.8 A)
Heat up boiler without heating operation max. 1.8 A
Stand-by approx. 0.001 A
Heating element – FrostControl (optional): maximum 0.4 A
Weight (without water)
Heater: 15.8 kg
Heater with
peripheral devices: 17.2 kg
Subject to technical changes.
Dimensions
450 mm
Figure 5
525 mm
15