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© 2011
D 406 - 12/11
Item Field
Range
Description
NONE, AUX,
XFER, VAR
Default = NONE
Access:
Installer
Set to:
BACKUP
SECTION B
NONE - No backup heat source is available.
AUX - An auxiliary heat source (electric or instantaneous water heater) is either
inside or in-line with the storage tank.
XFER - A boiler is the backup heat source. Backup heat is transferred from the
boiler loop to the heat pump loop with the transfer pump.
VAR - A boiler is the backup heat source. Backup heat is transferred from the
boiler loop to the tank loop with the variable speed pump.
Note:
If boil and mix water temperatures are configured, this item is automatically
set to XFER and is no longer displayed.
1STG,
0-10,
4-20,
EMS1,
EMS2
Default = 1STG
Access:
Installer
Set to:
BOILER TYPE
SECTION B
The type of boiler connected to the control.
1STG - single one-stage on-off boiler
0-10 - 0-10 V (dc) modulating boiler
4-20 - 4-20 mA modulating boiler
EMS1 - tekmar boiler staging controls
EMS2 - Viessmann modulating boilers
Note:
This item is only available when a boil water temperatures have been
selected.
-60 to 45°F
(-51 to 7°C)
Default = 10°F
(-12°C)
Access:
Installer
Set to:
OUTDOOR DESIGN
SECTION D
The outdoor air temperature used in the heating curves that determine the
tank, mix, and boiler target temperatures. Typically set to the temperature of
the coldest day of the year.
70 to 200°F
(21 to 93.5°C)
Default = 110°F
(43.5°C)
Access:
Installer
Set to:
TANK DESIGN
SECTION D
The supply water temperature required for the tank zones to heat the building on
the typical coldest day of the year. Recommendations:
High mass radiant floor = 120°F (50°C)
Low mass radiant floor = 140°F (60°C)
Fancoil or air handling unit = 190°F (90°C)
Copper fin-tube convector = 180°F (80°C)
Radiators = 160°F (70°C)
Low profile baseboard = 150°F (65°C)
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OFF, 70 to 110°F
(21 to 43.5°C)
Default = OFF
Access:
Installer
Set to:
TANK MINIMUM
SECTION D
The minimum allowed tank target temperature. This only applies when a zone
on the tank bus calls for heat.
70 to 200°F
(21.0 to 93.5°C)
Default = 110°F
(49°C)
Access:
Installer
Set to:
MIX DESIGN
SECTION D
The supply water temperature required for the mix zones to heat the building on
the typical coldest day of the year. Recommendations:
High mass radiant floor = 120°F (50°C)
Low mass radiant floor = 140°F (60°C)
Fancoil or air handling unit = 190°F (90°C)
Copper fin-tube convector = 180°F (80°C)
Radiators = 160°F (70°C)
Low profile baseboard = 150°F (65°C)
Note:
This item is only available when a mix water temperature has been
selected.
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Adjust Menu (2 of 6)
