FULTON Endura EDR 750 Nstallation, Operation And Maintenance Manual page 70

SECTION 3
EDR-PURE-IOM-210617
ƒ PID Control
Local PID and firing rate modifiers are accessed in this category.
` LOCAL PID
Use the slider to set how passive or aggressive the control will act to meet
setpoint when the boiler is in local (standalone) mode. See Lead/Lag PID for PID
control of plants with multiple boiler sequencing.
` LOW FIRE HOLD
The boiler can be locked to low fire rate after ignition for a set period of time. This
period of time can be enabled/disabled and adjusted on this screen.
` FREEZE PROTECTION
Two stages of freeze protection are provided. Stage 1 is only available if the boiler
(primary) pump is enabled in a primary secondary piping system. When the
boiler vessel water temperature falls below a configured temperature, the boiler
(primary) pump will be enabled until the set temperature has been reached.
Stage 2 enables the burner if the boiler vessel water temperature falls below a
configured temperature. The burner is held at low fire until the set temperature
has been reached.
` OUTLET MONITORING
In addition to the mechanical Aquastat temperature high limit, the boiler
includes a digital control soft high limit available on the Outlet Monitoring
screen.
– NOTE: If a high temperature condition occurs exceeding the high limit setting on
the mechanical Aquastat, the boiler will require a manual reset accomplished by
pressing the red Aquastat reset button.
The soft high limit acts to prevent nuisance manual reset high limit trips. If the
boiler outlet temperature exceeds the soft high limit, the burner will be driven to
low fire until the outlet temperature is reduced to the value assigned in the Soft
Limit Reset.
` COLD START
This feature allows the boiler to slowly reach temperature when receiving a
demand at a cold water condition as configured. When enabled, this modifier will
take priority over the PID until the configured time or the configured boiler water
temperature is reached.
Tender No. MET21-117
Questions? Please Contact Your Local Manufacturer's Representative
Design & Build RFP: Gas Heating Upgrade
Replacement in Dartmouth
OPERATION
!
WARNING
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
and regulations.
Non-Fulton product information
is for reference purposes only. No
Fulton document should substitute
for full review of documentation
available from the component
manufacturer.
Addendum #5 Page 70 of 105
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