Operating instructions
Variants Thermo 90 Variants Thermo 90 S
Thermo 90 Petrol-Type
(Type BW 80)
Water heater for “petrol” fuel
Thermo 90 Diesel-Type
(Type DW 80)
Water heater for “Diesel” fuel
Thermo 90-TRS (Type DW 80)
Water heater Thermo 90 with TRS
configuration
specially designed for use in ve-
hicles carrying hazardous ma-
terials
The petrol-fuelled Thermo Top 90
water heaters are designed to
operate on 12 V, the Thermo 90
Diesel heaters on 12 or 24 V, and
the Thermo 90-TRS heaters oper-
ate on 24 V only.
Thermo 90 S Petrol-Type
(Typ Thermo 90 S B)
Water heater for “petrol” fuel
Thermo 90 S Diesel-Type
(Typ Thermo 90 S D)
Water heater for “Diesel” fuel
Thermo 90-TRS
(Typ Thermo 90 S D)
Water heater Thermo 90 S with
TRS configuration
specially designed for use in ve-
hicles carrying hazardous ma-
terials
The petrol-fuelled Thermo Top 90 S
water heaters are designed to
operate on 12 V, the Thermo 90 S
Diesel heaters on 12 or 24 V, and
the Thermo 90-TRS heaters oper-
ate on 24 V only.
Thermo 90 / Thermo 90 S
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