Webasto Marine Catalog 2024-2025 EN

Water heaters Thermo Pro 90 / Thermo Pro 90 Chiller

Thermo Pro 90 Marine – state-of-the art controller and easy ​service Experience the advantages of one of our most renowned heating devices! With its high heating output, proven long-term durability, and low cost of ownership it is your perfect choice for small to midsize boats. Thermo Pro 90 Chiller – the heater for integration into an A/C system If you want to build a BlueComfort system with a Thermo 90 heater (see chapter “Integrated solutions“), use the Thermo ​Pro 90 Chiller version. It comes with a special electronic control unit and without the ​water pump which is not needed.

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Scopes of delivery

Order number 9029940C Thermo Pro 90 Marine 12 V Diesel 9029941C Thermo Pro 90 Marine 24 V Diesel 9029942C Thermo Pro 90 Chiller 12 V Diesel 9029943C Thermo Pro 90 Chiller 24 V Diesel

The advantages of the Thermo Pro 90:  Stepless variable power ​adjustment  High heat output  Compact dimensions  Service friendly technology  Extremely low noise level  Low fuel consumption and low emissions

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Water system For the distribution of heat in your boat you may need extra ​hoses, valves, expansion tank, convectors, air handlers etc. ​Please compose your water system individually. Fuel supply For the installation of the heater in the engine compartment ​the fuel supply system has to be fire-resistant according to EN ​ISO 7840. Please order the adequate components additionally ​ (fuel lines, fuel supply kit, rubber hose, fuel pump protection). Exhaust system Depending on the installation position and length of the ​exhaust pipe you may need a condensation water drain and ​an exhaust pipe insulation additionally. Control element Please order an adequate control element. For the Thermo Pro 90 Chiller no control element is needed. The heater is ​activated via the air- conditioning control. Accessories (optional) For extension of your heater system you find comfort control ​elements as well as other installation and system components ​in the accessories section.

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ItemQty Description 1 1 Heater 12 or 24 V including coolant

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pump U4840 and electronic control unit (no ​coolant pump with Thermo Pro 90 ​ Chiller)

This 44’ sailing yacht uses convectors to heat all cabins separately. Convectors are noiseless and do not consume any electrical power of the battery, giving the yacht improved electrical autonomy.

2 1 Electronic control unit 3 1 Fuel pump DP42.4 4 1 Wiring harness (heater, 570 lg) 5 1 Wiring harness (fuel pump, 5,000 ​lg) 6 1 Switch with lamp 12 or 24 V (not with ​9029942A and 9029943A) 7 1 Fuse holder with wiring harness 8 1 Heater bracket 9 1 T-piece + fuel hoses & hose clamps (8 ​x 5 x 8) 10 1 Hose Ø 5 x 1.5; 6,000 lg 11 4 Fuel hose Øi 4.5 / Øa 10.5; 50 lg 11a 2 Fuel hose Øi 8 / Øa 12; 70 lg

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In this 40’ motor yacht electrical fan blowers are used to heat up the boat. T​ hey are very compact and may be easily installed in small spaces, blowing h​ ot air through air ducts into each cabin. The windscreen has a separate b​ lower to demist and defrost.

Technical specifications

Thermo Pro 90

Thermo Pro 90 Chiller

12 8 Hose clamp (steel; Ø 10) 12a 4 Hose clamp (steel; Ø 12) 13 1

EC approval mark ECE R122 (Heating) EC approval mark ECE R10 (EMC)

E1 00 0320 E1 04 6196

E1 00 0320 E1 04 6196

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Bent hose Øi 20 / Øa 29; 2,200 lg Air intake ​silencer PAK Øi 30,5 / Øa 38; 1,160 ​lg

Heating power, control range / boost (kW) Heating power, control range / boost (BTU / h) Fuel consumption, control range / boost (l / h) Fuel consumption, control range / boost (gal / h)

1.8 – 7.6 / 9.1 6,100 – 26,000 / 31,000

1.8 – 7.6 / 9.1 6,100 – 26,000 / 31,000

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0.18 – 1.08 / 1.3 0.05 – 0.24 / 0.34 Diesel DIN EN 590

0.18 – 1.08 / 1.3 0.05 – 0.24 / 0.34 Diesel DIN EN 590

15 1 Exhaust silencer Øa 38 16 1

Flexible pipe (inoxyd.) Øi 38 / Øa 42; ​ 1,600 lg (1 x 1,000 mm + 1 x 600 ​mm)

Fuels*

Rated voltage (V)

12, 24

12, 24

17 2 Connection pipe Ø 18 x 20 18 2 Connection pipe Ø 20 x 20 19 7 Hose clamp Ø 23 … 35 20 3 Hose clamp Ø 39 … 42 21 2 Pipe clip Ø 42 22 15 Cable tie 178 lg 23 1 Exhaust through hull

20 – 83 / 90 3.0 – 6.9 amps / 7.5 at 12 V, 1.5 – 3.5 / 3.8 at ​24 V

Rated power consumption, control range / boost (W) Rated power consumption, control range / boost (amps)

20 – 83 / 90 3.0 – 6.9 amps / 7.5 at 12 V, 1.5 – 3.5 / 3.8 at ​24 V

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Flow rate of coolant pump (against 0.3 bar) (l / h) Flow rate of coolant pump (against 0.3 bar) (gal / min)

700 3.1

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Dimensions L x W x H (mm) Dimensions L x W x H (inch)

352 x 131 x 232 13.9 x 5.2 x 9.1

385 x 131 x 219 15.2 x 5.2 x 8.6

Weight (kg) Weight (lbs)

5.3 11.7

4.9 10.8

* Information about further fuels on request.

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