Boiler Control Instruction & Operation Manual
Page 3
4
of
68
Setup & Tuning
Parameter Adjustment
WARNING
Asphyxiation Hazard. Boiler type is factory set and must match the boiler model. Only change the boiler type
setting if you are installing a new or replacement Control. The boiler type setting determines minimum and
maximum blower speeds. Incorrect boiler type can cause hazardous burner conditions and improper operation that
may result in PROPERTY LOSS, PHYSICAL INJURY OR DEATH.
Modulation Menu
Factory
Setting
Range /
Choices
Parameter and Description
M
o
d
e
l
d
e
p
e
n
d
e
n
t
See
Table 10
Boiler Model
Boiler Size Setup
To verify the boiler size selection, a qualified technician should do the following:
1.
Check boiler
’s label for actual boiler size.
2.
Set
“Boiler Model” to match actual boiler size.
3.
Select
“Confirm”.
The Boiler Model parameter changes multiple boiler type related parameter settings.
This parameter is intended to allow a user to set the parameters in a spare part Control
to a particular boiler model.
Save Modulation Settings
This function stores the current modulation settings for future spare part setup
operation.
See
Table 10
Minimum to
Maximum
Modulation
Central Heat Max Modulation Speed
This parameter defines the highest modulation rate the Control will go to during a
central heat call for heat. If the rated input of the installed radiation is less than the
maximum output of the boiler, change the Central Heat Maximum Modulation (fan
speed) setting to limit the boiler output accordingly.
100%
Minimum to
Maximum
Modulatio
n”
Domestic Hot Water (DHW) Max Modulation Speed
This parameter defines the highest modulation rate the Control will go to during a
Domestic Hot Water call for heat. If the rated input of the indirect water heater is less
than the maximum output of the boiler, change the DHW Maximum Modulation (fan
speed) setting to limit the boiler output accordingly.
See
Table 10
Minimum
+ 100 to
Maximum -
100
Minimum Modulation Speed
This parameter is the lowest modulation rate the Control will go to during any call for
heat.
See
Table 10
minimum to
1300rpm
Lightoff Rate
This is the blower speed during ignition and flame stabilization periods.
Table 10: Example Parameters Changed by Boiler Model Selection:
Control Repair Part
Boiler Model
Boiler Model
FF-
1000
FF-
1500
FF-
2000
FF-
2500
FF-
3000
Max Power KBTU
1000
1500
2000
2500
3000
CH Maximum Modulation Rate (RPM)
5650
4500
4000
4100
4300
Minimum Modulation Rate (RPM)
1200
1100
1000
1000
1000
Light-off Rate (RPM)
1300
1200
1100
1200
1200
PW M Frequency
3
2
2
2
2
NOTE:
Maximum Modulation Rates are designed for 100% nameplate rate at 0°F (-18°C) combustion air.
Contact factory before attempting to increase the Maximum Modulation Rate
