Crown Boiler Phantom X series, Installation And Operating Instructions Manual, Page: 93 / 136

93
X. Operation
F. Changing Adjustable Parameters (continued)
“Press”
Modulation
Setup
button to access the following parameters:
Factory
Setting
Range /
Choices
Parameter and Description
100%
Minimum to
Maximum
Heat Rate
Central Heat Maximum Expected Heat Rate
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 home radiation is less than the maximum output
of the boiler, change the Central Heat Maximum Expected Heat Rate (fan speed) setting to limit
the boiler output accordingly.
80%
of CH
Maximum Heat
Rate
Minimum to
Maximum
Heat Rate
Domestic Hot Water (DHW) Maximum Expected Heat Rate
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 Expected Heat Rate (fan speed) setting to limit
the boiler output accordingly.
100%
Minimum to
Maximum
Heat Rate
Auxiliary Maximum Expected Heat Rate
This parameter defines the highest modulation rate the Control will go to during the auxiliary
heat call for heat. If the rated input of the Auxiliary Heat Zones is less than the maximum output
of the boiler, change the Auxiliary Heat Maximum Expected Heat Rate (fan speed) setting to
limit the boiler output accordingly.
40%
Minimum to
Maximum
Heat Rate
Zone 1 Expected Heat Rate (typical for zone 1 through 16)
This parameter defines the highest modulation rate the Control will go to during the Zone 1 call
for heat. If the rated input of the installed home radiation in zone 1 is less than the maximum
output of the boiler, change the Zone 1 Expected Heat Rate (fan speed) setting to limit the
boiler output accordingly.
15
Minutes
0 to 60 Minutes
Zone Release Time
After the Zone Release Time minutes and a zone has not been satisfied (thermostat opens) the
measured heat loss will be released to increase to the Central Heat Maximum Heat Rate.
Varies by
Model
Varies by
Model
Minimum Heat Rate
This parameter is the lowest modulation rate the Control will go to during any call for heat.
Varies by
Model
399: 3,500 -
4,000 rpm
500 - 800:
non-adjustable
Lightoff Heat Rate
This is the blower speed during ignition and flame stabilization periods.