© Fulton Group N.A., Inc. 2021
5-2
MAINTENANCE
ModSyncSE-User-Manual-211020
SECTION 5
!
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
BEFORE CALLING, PLEASE HAVE THE
FOLLOWING INFORMATION AVAILABLE.
ModSync® Serial Number:
_______________________________
(Lower left hand corner inside panel door)
Boiler National Board Numbers:
________________, ______________,
________________,
______________
Fulton Representative that sold the equipment:
_______________________________
Contact
Name:
_______________________________
Message
Explanation / Recommended Action
System Active / No Alarm
The ModSync® is active and no alarms are sensed.
Outdoor RTD Sensor Error The Outdoor Sensor is providing a value that is
outside of the allowable scale. Verify the RTD wiring,
replace the sensor if necessary.
Loop RTD Sensor Error
The Hydronic Loop Sensor is providing a value that is
outside of the allowable scale. Verify the RTD wiring,
replace the sensor if necessary.
Boiler (#) Alarm
The Local boiler controls have indicated that an
alarm condition occurred.
Boiler (#) Monitor Alarm
The ModSync® called for the boiler to start and the
main gas valve inputs was not received within a
customer adjustable 5 minutes. Check the limit string
of the boiler to verify which device is preventing
the boiler from enabling. Verify the operating limits
are set higher than the maximum loop temperature
variable on the ModSync®.
Boiler (#) Modbus Error
Issues with the Modbus communication
between the ModSync® and the specified boiler.
Check wiring and local boiler control settings.
See section 4 of this manual for local boiler
control setup and addressing.
ModSync® Alarms
