Submittal Sheet

Data sheet
4
VDKIJ102 © Danfoss 01/10
ESBE VTC
3-Way Thermic Valve
Systems Applications:
VTC Thermic Valve on Gravity Conversion System
VTC Valve on Multi-zone Systems with Circulators
VTC Valve
Because gravity conversion systems contain
an enormous volume of water, the water
returning to the heat source could be
significantly cooler, leading to condensation
and a shorter life for the heat source. Adding
a thermic valve to the system will prevent
the boiler from sustained operation at
temperatures below the dew point of their
flue gases.
Where a high mass non condensing
heat source is matched with a large low
temperature system, a situation could occur
where the heat source is unable to keep up
with the rate of demand from the system.
The use of the thermic valve provides the
opportunity for the heat source to catch-up.
VTC Valve
Charging of Storage Tank through Solar Heating
With the thermic VTC valve, an efficient
method of charging a tank can be done.
To achieve efficiency through the solar
panel, cool water should enter allowing for
a higher differential temperature across the
panel. Additionally heated fluid from the
panel should be properly distributed within
the tank to reduce stratification i.e. even
temperature distribution, within the tank.