CONTROLLER MANUAL
1-14
CONTROLLER MANUAL – SFC/SFB SERIES BOILERS
PARAMETER
DESCRIPTION DEFAULT
RANGE / OPTIONS
P033
Space Heating
Pump Post-
Purge (minutes)
1
0-15 minutes
P034
Space Heating
Pump post-
purge after DHW
tank operation
(minutes)
1
0-15 minutes
P035
Step Modulation 1
0 = Off
1 = On Space
Heating gradually
ramps up from min.
2 = Open Therm
P036
Space Heating
Anti-cycle
(minutes)
5
0-15 minutes
P050
Space Heating
Supply
Temperature /
Design Supply
Temperature
176°F / 80°C
50°F to 194°F /
10°C to 90°C
P052
Design Outdoor
Temperature
16°F / -9°C
-22°F to 50°F /
-30°to 10°C
P053
Summer
Shutdown
Temperature
77°F/ 25°C
50°F – 85°F / 10°C
– 30°C
P056
Minimum supply
temperature
when using an
Open Therm
modulating
thermostat
86°F
30°C
50°F – 140°F
10°C – 60°C
Minimum supply
temperature
when using
an on/off
thermostat and
“smart outdoor
function” active
P059
Maximum User
set temperature
of Space
Heating
194°F/ 90°C
50°F to 194°F /
10°C to 90°C
P061**
Smart Outdoor
reset - Slope for
increase and
decrease supply
setpoint
3
°C/100 seconds.
0 = function inactive
P070
Maximum DHW
capacity
100%
20%-100%
