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GENERALLY
TERMOVAR is an automatic loading unit for sold-fuel boiler/storage tank installations. The loading unit ensures
a minimum return-water temperature into the heating boiler, which encreases the boiler efficency, prevents tarring
and considerably prolongs the lifetime of the heating boiler.
TERMOVAR eliminates the risk of destructive thermal shock caused by surges of cold return water and renders
a more effective burning. The heating boiler reaches the right working temperature quickly. In the end phase of the
firing an automatic balancing valve closes the by-pass loop. This results a maximum cooling of the boiler and the
storage tank is fully filled with hot water.
TERMOVAR automatically allows self-circulation as soon as the fire has gone out so that the rest of the heat in boiler
is transferred into the storage tank. It also allows self-circulation in case of power failure.
MAIN PARTS
1. Thermally operated loading valve
2. Automatic balancing valve
3. Backflow preventer (Model S without)
4. Circulation pump
5. Three thermometers
6. Three ball valves
7. Insulation EPP (optional Order No. 4919)
TECHNICAL DATA
Voltage
Power consumption
Max. boiler capacity
Max. operating temperature
Max. operating pressure
Thermostatic elements
Circulation pump
Sizes
Body
Dimensions
Weight
DIMENSIONING
Pipe dimensioning between heating boiler and storage tank:
TERMOVAR 25 for heating boilers up to 60 kW: DN 25 steel pipe or DN 28 copper pipe
TERMOVAR 28 for heating boilers up to 60 kW: DN 28 copper pipe
TERMOVAR 32 for heating boilers up to 80 kW: DN 32 steel pipe or DN 35 copper pipe
230 VAC 50 Hz
Pump speed I 45 W, Pump speed II 75 W, Pump speed III 110 W
80 kW
110°C
1,0 MPa (10 bar)
Opening temperatures 45°C, 55°C, 61°C, 72°C or 80°C, fixed
Grundfos UPS 15-60 CIL
Rp1", Rp1¼" or 28 mm compression fittings
Cast iron
210 x 210 x 110 mm
5,0 kg
2 (7)
TERMOVAR LU (EN) 06.12
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