Table of Contents
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SC-3 Controller
Display
Setpoint Occupied - The minimum supply temperature when a setpoint demand is
present during the Occupied period. This item is only available when DHW MODE is set
to OFF.
Press the Menu button until ADJUST is visible on the top line of display. Press the
Item button until SETP appears above the temperature and OCC appears below the
temperature. Keep default setting of 180˚F.
Range Available: OFF, 60 to 220˚F (OFF, 16 to 104˚C)
Setpoint UnOccupied - Selects whether or not a setpoint demand will be responded to
during the UnOccupied period. This item is only available when DHW MODE is set
to OFF.
Press the Menu button until ADJUST is visible on the top line of display. Press the
Item button until SETP and UNOCC appear. Keep default setting of OFF.
Range Available: OFF, On
WWSD Occupied - The system's warm weather shut down temperature during the
occupied period.
Press the Menu button until ADJUST is visible on the top line of display. Press the
Item button until OCC appears and arrow points to WWSD. Use the up and down arrow
buttons to change to the desired temperature.
Range Available: 35˚ to 100˚F (2˚ to 28˚C or OFF)
WWSD UnOccupied - The system's warm weather shut down temperature during the
UnOccupied period.
Press the Menu button until ADJUST is visible on the top line of the display. Press the
Item button until UNOCC appears and arrow points to WWSD. Use the up and down
arrow buttons to change to the desired temperature. This is available with optional timer
terminals 1 (com) and 4 (UnO Sw) are made.
Range Available: 35˚ to 100˚F, OFF (2˚ to 38˚C, OFF)
Primary Pump Purge - The maximum length of time that the primary pump will continue
to operate after the boiler demand has been removed.
Press the Menu button until ADJUST is visible on the top line of the display. Press the
Item button until PURG and MIN appear. Use the up and down arrow buttons to adjust to
the desired setting.
Range Available: OFF, 0:10 to 19:55 min (5 sec increment)
Units - The units of measure that all of the temperatures are to be displayed by the
control.
Press the Menu button until ADJUST is visible on the top line of the display. Press the
ITEM button until ˚F or ˚C appears. Use the up and down arrow buttons to change to
the desired setting -˚F or ˚C
NOTE: When you press ITEM button again you will go to the beginning of the sequence
SPACE HEATING ONLY WITH OUTDOOR RESET
Description
Default = 180˚F (82˚C)
Default = OFF
16
Default
New
Setting
Setting
180˚F
(82˚C)
OFF
70˚F
(21˚C)
60˚F
(15.5˚C)
0:20
min
˚F
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