12 of 16
Delta T Maximum
The Delta T Maximum sets the maximum temperature difference between the mixing
return sensor and the mixing supply sensor. This item is only available if Outdoor Design
setting is set to OFF. If a mixing return sensor is not installed, set this item to OFF.
Outdoor Design Temperature
The Outdoor Design Temperature is the outdoor temperature used in the heat loss calcu-
lation. If the VSMC is used in the outdoor reset mode, this item is set to the typical coldest
outdoor temperature. If the VSMC is used in the setpoint mode, this item is set to OFF.
Mixing Design Temperature
The mixing design temperature is the supply temperature used in the heat loss calcula-
tion. This is the supply temperature that is required to heat the building when the outdoor
temperature is as cold as the outdoor design temperature. This item is only available if the
Outdoor Design setting is not set to OFF.
Mixing Maximum Temperature
The mixing maximum temperature is the highest temperature that the control is allowed to
use as a mixing target temperature. This item is only available if the outdoor design set-
ting is not set to OFF.
Mixing Minimum Temperature
The mixing minimum temperature is the lowest temperature that the control is allowed to
use as a mixing target temperature. This item is only available if the outdoor design set-
ting is not set to OFF.
Heat Source Minimum Temperature
The heat source minimum temperature item should be set to the lowest water tempera-
ture at which the heat source can operate without causing the heat source flue gases to
condense. Consult the heat source manufacturer for recommended minimum heat source
supply temperatures. This item is only available if a heat source sensor is connected to
the control.
Warm Weather Shut Down (WWSD)
The warm weather shut down is the outdoor temperature at which the system is shut
down. This item is only available if the outdoor design temperature is not set to OFF.
Units
The units of temperature in which all of the View and Adjust items are viewed in.
The control automatically goes back to the view menu when the buttons are left alone for 20 seconds
All settings will be saved even during power down of the control
T
MAX
ADJUST
F
OUT
ADJUST
F
DSGN
MIX
ADJUST
F
DSGN
MIX
MAX
ADJUST
F
MIX
MIN
ADJUST
MIN
ADJUST
F
BOIL
ADJUST
F
WWSD
ADJUST
F