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Viega Hydronic Mixing Block User Guide
UG-HC 566234 0720 Hydronic Mixing Block
Design Temperature Settings
■
OUT DESIGN — Outdoor temperature used
to calculate heat loss. This temperature is
based on location and can be obtained from
outdoor design charts.
Range: -40°F to 70°F
Default: 10°F
■
ROOM DESIGN — Desired room temperature
used in heat loss calculation.
Range: 35°F to 120°F
Default: 70°F
■
WWSD — Temperature at which the building
does not need heat and the control will no
longer activate the circulator.
Range: 35°F to 120°F
Default: 70°F
■
TEMP CONTROL: FIXED — The control
will maintain a constant (FIXED) water
temperature.
■
WATER TEMP — The fixed water
temperature.
Range: 50°F to 180°F
Default: 120°F
■
TEMP CONTROL: RESET — Water
temperature will adjust based on outdoor
temperature; as the outdoor temperature
increases, the water temperature will
decrease, and vice versa. By using this type
of control strategy the output of the radiant
system will meet the load of the structure,
resulting in an energy savings for the building
owner. Default is set to: RESET.
■
MIX DESIGN — The design water
temperature specified by the radiant design.
This is the maximum water temperature that
will be supplied.
Range: 50°F to 180°F
Default: 120°F
■
MIX MIN — The minimum supply temperature
for the mixing system.
Range: 50°F to 180°F
Default: 70°F