Operating instructions

3. Technical Data
3.1 Technical Data
The following data is subject to the normal tolerance for heaters, if no tolerance is specified.
This is approximately +/-10% in an ambient of 68°F (20°C) at nominal voltage.
Heater Thermo 90 S Diesel (D) Thermo 90 S Gasoline (B)
Design Coolant heater with evaporator burner (Ferro-Tech Technology)
Heat Output Btu/hr (kW)
Boost (Maximum 2 hours)
Variable Heat Output
From
To
31,000 (9.1)
6,100 (1.8)
26,000 (7.6)
Not Applicable
6,800 (2.0)
26,000 (7.6)
Fuel Diesel #1 Diesel #2 and Arctic Gasoline
Fuel Consumption gal/hr (l/hr)
Boost
Variable Heat Output
From
To
0.28 (1.10)
0.05 (0.19)
0.24 (0.90)
Not Applicable
0.06 (0.25)
0.26 (1.00)
Rated Voltage 12 or 24 12 V only
Operating Voltage 10.5... 15 or 20.5... 30 10.5... 15
Power Consumption @ 12 Volts
Boost
Variable Heat Output
From
To
7.5 Amps or 90 Watts
3.0 Amps or 37 Watts
6.9 Amps or 83 Watts
Not Applicable
3.0 Amps or 37 Watts
6.9 Amps or 83 Watts
Operating Temperature Range of
Heater
Fuel Pump
– 40°... +230° F (– 40°... +110° C)
– 40°... +68° F (– 40°... +20° C)
Storage Temperature – 40°... +130° F (– 40°... +54° C)
Min. Capacity of Coolant System 1.6 Gallons (6.0 Liters)
Permissible Operating Pressure
of Coolant System
6.0 ... 29 psi or 0.4 ... 2.0 bar
Flow Rate of Coolant Pump 7.25 gal/min. or 1650 l/hr against 0.15 bar pressure
CO in Exhaust Gas % by Vol. 10 ... 12 max.
CO in Exhaust Gas % by Vol. 0.1% max.
Bacharach Smoke Spot Number <6
Dimensions of Heater Length 14.0” (355 mm)
Width 05.24” (133 mm)
Height 08.66” (220 mm)
Dimensions of Enclosure Length 15.75” (400 mm)
Width 07.50” (190 mm)
Height 14.0” (355 mm)
Weight incl. Enclosure 35.0 lb. (16 kg.)
Weight of Heater Incl. Control Unit 10.5 lb. (4.8 kg.)
Table 301: Technical Data
301
Thermo 90 S 3 Technical Data