Falcon Lead Lag Appendix E
E-12
2. Go to Lead Lag Master Configuration and make any necessary parameter changes. The first set of
parameters shown will be the following:
Master Enable should be left at Disabled for now.
CH (steam) setpoint is the system header temperature (pressure) that the lead lag system will
attempt to maintain.
CH (steam) time of day is the setpoint used by the TOD/Night Setback routine, if utilized.
Modbus port should be set to MB2. This is the port used by the Falcon Lead Lag Modbus network.
Remaining lead lag Master parameters are accessed by pressing <ADVANCED SETTINGS> and are
shown in Tables 2a (hydronic) and 2b (steam). Use the left and right arrow buttons near the top of
the screen to navigate through the parameter menus. Use the scroll bar on the right hand side of
the scren to scroll through the parameter lists.
Table 1a - Lead Lag Master Configuration Parameters (Hydronic)
Parameter Range CB Default Setting Installation Setting
Master enable Enabled
Disabled
Disabled
CH setpoint -40 to 266 deg F (-40 to 130
deg C)
150 deg F
CH time of day setpoint -40 to 266 deg F (-40 to 130
deg C)
120 deg F
Modbus port MB1
MB2
No port
MB2
Table 1b - Lead Lag Master Configuration Parameters (Steam)
Parameter Range CB Default Setting Installation Setting
Master enable Enabled
Disabled
Disabled
Steam setpoint 0-135 psi 10 psi
Steam time of day setpoint 0-135 psi 0 psi
Modbus port MB1
MB2
No port
MB2
Table 2a - Lead Lag Master Configuration Parameters - Advanced Settings, Hydronic
Parameter Range CB Default Setting Installation Setting
Modulation Parameters
Modulation backup sensor
Lead outlet sensor
Slave outlet sensor average
Disabled
Slave outlet sensor
average
Off hysteresis 0 deg F to 234 deg F (-17 deg C to 112 deg C) 15
On hysteresis 0 deg F to 234 deg F (-17 deg C to 112 deg C) 5
Hysteresis step time hr min sec 0 min
P gain 0-400 10
I gain 0-400 15
D gain 0-400 0
Central Heat Parameters
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