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Lead Lag Slave Configuration
Parameters
Table 33 displays Lead Lag Slave Configuration parameters.
Fig. 59. Lead Lag slave configuration.
Lead Lag Master Configuration
Parameters
Table 34 displays Lead Lag Master Configuration parameters.
Click the Advanced Settings button to see available advanced
parameters as shown in Table 34–43.
Use the left and right arrows to switch between Modulation,
CH, DHW, Frost Protection, Warm Weather Shutdown,
Algorithms, Rate Allocation, Add stage and Drop stage
parameters.
Fig. 60. Lead Lag master configuration and Advanced
Settings button.
Table 32. Fan Configuration Parameters.
Parameter
Comment
Absolute maximum
fan speed
500–12000 RPM
Absolute minimum
fan speed
500–12000 RPM
Fan gain down
0-100
Fan gain up
0-100
Minimum duty cycle
1-100%
Pulses per revolution 1-10
PWM frequency
1000
2000
3000
4000
Slow down ramp
0-12000 RPM/sec
Speed up ramp
0-12000 RPM/sec
Table 33. Lead Lag Slave
Configuration Parameters.
Parameter
Comment
Slave enable
Slave
ModBUS slave
Disabled
Slave mode
Use first
Use last
Equalize run time
Base load rate
0–6000 rpm
Slave sequence
order
0–8
Demand to firing
delay
___hour ___min ___sec
Fan rate during off
cycle
0–12000 rpm
ModBus port
MB1
MB2
No port
ModBus address
0–250
Table 34. Lead Lag Master Configuration Parameters.
Parameter
Comment
Master enable
Enabled
Disabled
CH setpoint
32 °F to 250 °F (0 °C to 121 °C)
CH time of day
setpoint
32 °F to 250 °F (0 °C to 121 °C)
ModBus port
MB1
MB2
No port
ModBus address
1–250
Table 33. Lead Lag Slave
Configuration Parameters. (Continued)
Parameter
Comment