Honeywell Local Operator Interface S7999B - Manual (Page 25)

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE
25 65-0303—05
Modulation Configuration
Parameters
Table 15 displays R7910A Hydronic Control Modulation
configuration parameters.
Fig. 43. Modulation configuration.
Steam Modulation Configuration
Parameters
Table 16 displays R7911 Steam Modulation Configuration
parameters.
Fig. 44. Steam modulation configuration.
Table 15. R7910A Hydronic Control Modulation Configura-
tion Parameters.
Parameter Comment
CH maximum
modulation rate
RPM or %
DHW maximum
modulation rate
RPM or %
Minimum modulation
rate
RPM or %
CH forced rate time 0-600 seconds
CH forced rate RPM or %
DHW forced rate time 0-600 seconds
DHW forced rate
RPM or %
CH slow start enable Enabled
Disabled
DHW slow start
enable
Enabled
Disabled
Slow start degrees -40 °F to 266 °F (-40 °C to 130 °C)
Slow start ramp RPM /minute or %/minute
0-10/4-20 mA Output
hysteresis
Table 16. R7911 Steam Modulation Configuration
Parameters.
Parameter Comment
CH maximum
modulation rate
RPM or %
Minimum modulation
rate
RPM or %
CH forced rate time 0-600 seconds
CH forced rate RPM or %
0-10/4-20 mA Output
hysteresis