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S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE
65-0303—05 60
Absolute
maximum fan
speed
RPM 33 35
Absolute
minimum fan
speed
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
Slave enable Slave
ModBUS slave
Disabled
34 36
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
Master
enable
Enabled
Disabled
35 36
CH setpoint -40 °F to 266 °F
(-40 °C to 130 °C)
CH time of
day setpoint
-40 °F to 266 °F
(-40 °C to 130 °C)
ModBus port MB1
MB2
No port
ModBus
address
0–250
Table 61. Configurable Parameters. (Continued)
Parameter Comment
Table
#
Page
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Modulation
backup
sensor
Lead outlet sensor
Slave outlet sensor average
Disabled
36 36
Off
hysteresis
0 °F to 234 °F
(-17 °C to 112 °C)
On
hysteresis
0 °F to 234 °F
(-17 °C to 112 °C)
Hysteresis
step time
___Hour ____Minute
_____Second
P gain 0 - 400
I gain 0 - 400
D gain 0 - 400
Demand
switch
Stat
Remote Stat
ModBus Stat
Disabled
37 37
Setpoint
source
Local
ModBus
4-20 ma
Setpoint -40 °F to 266 °F
(-40 °C to 130 °C)
Time of day
setpoint
-40 °F to 266 °F
(-40 °C to 130 °C)
4 ma water
temperature
-40 °F to 266 °F
(-40 °C to 130 °C)
20 ma water
temperature
-40 °F to 266 °F
(-40 °C to 130 °C)
Outdoor
reset
Enabled
Disabled
Priority
source
DHW heat demand
Disabled
38 37
Priority
method
Boost during priority time
Drop after priority time
DHW priority
override time
___Hour ____Minute
_____Second
Enable Enabled
Disabled
39 37
Outdoor
setpoint
-40 °F to 266 °F
(-40 °C to 130 °C)
Frost
protection
rate
____%
Enable Enabled
Disabled
40 37
Setpoint -40 °F to 266 °F
(-40 °C to 130 °C)
Table 61. Configurable Parameters. (Continued)
Parameter Comment
Table
#
Page
#