© Fulton Group N.A., Inc. 2021
3-10
OPERATION
ModSyncSE-User-Manual-211020
SECTION 3
!
WARNING
This manual is provided as a
guide to the correct operation and
maintenance of your equipment,
and should be read in its entirety and
be made permanently available to
the staff responsible for equipment
operation. It should not, however
be considered as a complete code
of practice, nor should it replace
existing codes or standards which
may be applicable. Fulton reserves
the right to change any part of
this installation, operation and
maintenance manual without notice.
Do not install, operate, service,
or repair any component of this
equipment unless you are qualified
and fully understand all requirements
and procedures.
All information in this manual is for
reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional /professional codes or
regulations
FIGURE 7 - SYSTEM AND SCALING SCREEN 2
System and Scaling Screen 2
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OUTLET MONITORING:
Enable/Disable:
When enabled the outlet monitoring will watch each
boiler’s outlet temperature. If the temperature gets too high above the
setpoint the ModSync® will decrease the boiler’s firing rate until the
outlet temperature decreases. This is used to help prevent the boiler from
tripping on its operating/high limit switch.
Temp > SP By:
Determines how high above setpoint the boiler’s outlet
temperature needs to get before the outlet temperature monitoring
decreases the boiler’s firing rate. For example if the system setpoint is 125°F
and the Temp > SP By value is 25°F, then if a boiler’s outlet temperature
meets or exceeds 150°F the boiler’s firing rate will be decreased.
Low Fire %:
When a boiler’s firing rate is decreased, it will drop to this
Low Fire % value. Note that if the Low Fire % is set to 0% and the low fire
position of the boiler is 20% the boiler will only go to its actual low fire
position.
Temp Deviation
: How much the boiler’s outlet temperature needs to
decrease before the boiler’s firing rate limitation is released. For example
if the boiler’s firing rate is decreased when the outlet temperature reaches
150°F and the Temp Deviation is set to 10°F, then when the boiler’s outlet
temperature drops below 140°F the boiler’s firing rate limitation will be
released and will go back to normal modulation.
Outlet Scaling:
Scale the outlet temperature retransmission from the
Yokogawa temperature control on the Fulton Vantage boilers.
Low (4mA):
The temperature value when the input is 4mA.
High (20mA):
The temperature value when the input is 20mA.
The boiler outlet temperature will scale in a linear fashion between the two
points.
