Installation manual

www.webasto.us 37 Webasto Thermo & Comfort N.A., Inc.
Thermo Pro 90 Technical Data
15. Technical Data
Except where limit values are specified, the technical data refer to the usual heater tolerances of ±10% at an ambient
temperature of +20 °C (68 °F) and at the nominal voltage and conditions.
15.1 Electrical Components:
The control module, motors for combustion air blower and circulating pump, ceramic glow pin, metering pump, switch
and timer are available in 12 and 24 volt versions.
The temperature limiter, temperature sensor and flame sensor are identical on 12V and 24V heaters.
15.2 Fuel for Thermo Pro 90 (Diesel):
The diesel fuel specified by the vehicle manufacturer must be used. Heating oil may also be used as long as it complies
to the normal quality available on the North American market.
We know of no negative influences due to additives.
If fuel is extracted from the vehicle’s tank, follow the additive instructions issued by the vehicle manufacturer.
If you change to low-temperature fuel, the heater must be operated for approximately 15 minutes so that the fuel
system is filled with the new fuel.
The Thermo Pro 90 heater is also approved for use with PME (bio-diesel), which complies with DIN EN 14214.
Table 1: Technical Data
Heater Operation Thermo Pro 90
Approval symbol E1 122R 00 0320 (Heater)
E1 10R 03 6196 (EMC)
Model Water heater with evaporative-type burner
Heat output Max.
regulating range
9.1 kW (31,000 BTU)
1.8 kW – 7.6 kW (6,000 BTU/hr - 26,000 BTU/hr)
Fuel Diesel
PME (Bio-diesel)
Fuel consumption Max.
regulating range
1.1 l/h (.29 Gal/hr)
> 0.21 – 0.92 l/h (0.05 Gal/hr - 0.24 Gal/hr)
Rated voltage 12 V 24 V
Operating voltage range 10.5... 15.5 V or 20 ... 31.5 V
Nominal power consumption with circulation
pump (without vehicle fan)
Max.
regulating range
≤ 90 W
≤ 80 W ≤ 37 W
Perm. ambient temp.:
Heater control Unit: - Operation
-Storage
-40° ... +80° C (- 40°... + 176°F)
-40° .. +125 °C (- 40°.. +257°F) (heater off, operating voltage may be connected)
Metering pump: - Operation
-Storage
> -40 +30 °C (> -40 +86°F)
> -40 +85 °C (> -40 +185°F)
Perm. operating pressure (heat medium) Max. 2.0 bar (29 PSI)
Capacity of the heat exchanger 0.15 l (.158 quart)
Max. combustion air intake temperature +40 °C (104°F)
Minimum capacity of the system 6.00 l (6.34 quarts)
CO
2
in the exhaust gases (normal function range) Max. 9 ... 11.5% by volume
Heater dimensions (tolerance  3 mm)
* Control module installed on the heater
L = Length: 355 (381*) mm W = Width: 131 mm H = Height: 232 mm
Weight 4,9 kg (10.8 lbs.)
U4840 Coolant Pump
Volume Flow @ 0.3bar (4.35 PSI) 700 l/h (3.08 gal/min)
Dimensions 134 x 53 x 90 (5.28” x 2.08” x 3.5”)
Weight .36 kg (.8 lbs)