Webasto Thermo 90, Workshop Manual

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Thermo 90 4 Technical Data
401
4 Technical Data
As long as no threshold values are given, the following
technical data are understood to include tolerances of
±10% usual for heaters at an ambient temperature of
+20° C and at nominal voltage and conditions. Electrical Components:
Control unit, combustion air fan motor and dosing pump,
glow plug, control switch and timer are either of the 12 V
or 24 V type.
The components temperature limiter, temperature sensor,
and flame sensor are identical in the 12 V and 24 V units.
* not for Thermo 90-TRS
1)
Thermo 90-TRS 24 Volts only
2)
Thermo 90-S with control unit mounted on heater
Water Heater Operation Thermo 90 Fuel Thermo 90 Diesel
Thermo 90-TRS
Type BW 80 DW 80
Mark of conformity ~ S231 ~ S232
Heater type Water heater with
Ferro-Tec-Technology
Heat flow max.
control range 2.0 – 7.6 kW
9.1 kW
1.8 – 7.6 kW
Type of fuel Benzin Diesel
Fuel consumption max.
control range 0.25 – 1.0 l/h
1.1 l/h
0.19 – 0.9 l/h
Nominal voltage 12 Volt 12 or 24 Volt
1)
Operating voltage range 10 ... 15 Volt 10 ... 15 or 20 ... 30 Volt
Rated power consumption with
circulation pump (without vehicle blower)
max.
control range 37 W – 83 W
90 W
37 W – 83 W
Permitted ambient temperature:
Heater – operation
– storage
Control unit – operation
– storage
Dosing pump – operation
– storage
–40 ... +110° C
–40 ... +130° C
–40 ... + 75° C
–40 ... + 85° C
–40 ... +20° C –40 ... +40° C
–40 ... + 85° C
Permitted overpressure (heat exchanger) max. 2.0 bar
Heat exchanger capacity 0.15 l
Max. combustion air intake temperature +40° C
Coolant circuit minimum capacity 6.00 l
Volume flow of circulation pump
against 0.15 bar
1650 l/h
CO
2
in exhaust
(perm. operating range)
max. 10 ... 12.0 Vol.-%
CO
2
-setting values at approx. +20° C and
geograph. height above SL
max.
0 m 500 m 1000 m
10 % 10.6 % 11.3 %
Dimensions heater
(Tolerance ± 3 mm)
Length 310 mm (355 mm)
2)
Width 133 mm
Height 220 mm
Weight 4.8 kg