Product Manual

2.3 Technical data
2.3.1 Petrol heater
Heater type Hydronic S3 Economy
Heater version B 4 E CS B 5 E CS
Heating medium
Mixture of water and anti-freeze (Proportion of antifreeze
at least 10 % up to 50 % maximum)
Fuel Petrol – standard commercially available (DIN 51600 and
EN 228)
Rated voltage 12 volt
Control of the heat flow Maximum Minimum Maximum Minimum
Heat flow (watt) 4300 1800 5000 1800
Fuel consumption (l/h) 0.57 0.23 0.67 0.23
Average electrical power consumption (watt)
without water pump, without vehicle fan relay
during operation 24 7 32 7
while starting 135
Operating range
Lower voltage limit:
Undervoltage protection installed in the control box switches off the heater
if the lower voltage limit is reached.
10.5 volt
Upper voltage limit:
Overvoltage protection installed in the control box switches off the heater if
the upper voltage limit is reached.
16 volt
Allowable operating pressure up to 2.5 bar overpressure max.
Water volume in the heater approx. 0.09 l
Minimum water flow rate of the heater 300 l/h
Allowable ambient temperature
(Also note and follow the information for
installation of the heater and metering pump!)
Heater
during operation –40 °C to +60 °C
not in operation –40 °C to +105 °C, short-term +125 °C (5 x 2h)
Metering pump
during operation –40 °C to +20 °C
Storage –40 °C to +105 °C
drawn-in combustion air max. +25 °C, short-term +45 °C (15 minutes)
Interference suppression class 5 (EN 55025)
Weight – without coolant liquid and additional parts 2 kg
Degree of protection DIN 40050, Part 9
Heater (in operation)
IP5K6K
1)
Heater (not in operation)
IP5K9K
1)
Technical data, water pump
Rated voltage 12 volt
Nominal current max. 1.6A
Nominal delivery pressure 0.2 bar
Delivery rate ≥ 500 l/h
1) The heater is protected against harmful quantities of dust, powerful water jet under increased pressure and water during high-pressure/steam cleaning (provided it is not in
operation). The control box is dustproof, completely protected against powerful water jet under increased pressure and water during high-pressure/steam cleaning (provided it is
not in operation).
Caution! Note
Operating the heater outside the specified technical data can
cause malfunctions.
Æ The technical data must be complied with at all times.
If no limit values are given, the technical data listed is with the
usual heater tolerances of ± 10% at nominal voltage and Esslingen
reference altitude.
25.2933.90.0001.0A EN | 06.2018 13
Technical Description | Hydronic S3 Economy