Bradford White Brute MagnaTech BMGH1600, Installation And Operation Instructions Manual

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Page 64
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contacts when it receives a call for heat. Once the call for
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pump overrun time.
The Boiler, System, and DHW pump terminals are
found on the Main control board TB1-15A through 20A.
They are fed 120 Volts internally from the main power
feed. The current rating of the contacts is 7.4 amps, and
an appropriately sized contactor must be supplied and
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operation. Once the system has been installed, the “Pump
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Pump control, Overrun time and Demand control for the
various pumps in the system.
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to view Burner Cycles, Burner Run Time, DHW Pump
Cycles, Boiler Pump Cycles, and System Pump Cycles.
This menu is ‘Read-Only’
9.7.10 High Limits
The outlet High limit can be adjusted using the installer
password. After a change is made, the control will lockout
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Installers do not have access to change the Outlet High
Limit Response. That is only accessible to the factory.
9.7.11 Stack Limits
Stack limit delay, response and setpoint can be
changed ONLY BY THE FACTORY.
9.7.12 Delta T Limits-
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rise) limit of 60 degrees F. The installer has the ability
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T delay, Delta T response, and the Delta T retry limit
using the installer level password. Only the factory
may disable this function.
9.7.13 Frost Protection
Frost protection will assist in keeping the Unit from
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able to run the pumps. The frost overrun time can
be changed.