Page 82
Bradford White Corp.
9.8
Installer Parameters
This is a list of all of the parameters which can be accessed using the Installer password.
Label
Description
How to Reach
4 mA water
temperature
If a 4 – 20 mA input is used to adjust the
setpoint, this entry sets the low limit of the
control range. (In the example shown here,
an input of 4 mA would result in a setpoint of
90°F.)
<Home screen> Lead Lag Master button
<Lead Lag Master screen> Configure
button <Lead Lag Master Configuration
screen> Advanced Settings button <Central
Heat screen>
20 mA
water
temperature
If a 4 – 20 mA input is used to adjust the
setpoint, this entry sets the high limit of the
control range. (In the example shown here, an
input of 20 mA would result in a setpoint of
120°F.)
<Home screen> Lead Lag Master button
<Lead Lag Master screen> Configure
button<Lead Lag Master Configuration
screen> Advanced Settings button<Central
Heat screen>
Anti Short
Cycle Time
This can be set to prevent the system from
cycling on and off quickly if the heat demand
is near the setpoint and changes quickly.
<Home screen> Select a controller <Status
Summary screen> Configure button
<Configuration Menu> Select System
Configuration <System Configuration screen>
Boiler pump
control
The Boiler pump (Pump A) can be turned
on manually, or it can be set to operate
automatically. If it is turned on, then it
remains on until the control is changed back
to Auto. In Auto mode it operates according to
the demand and overrun time.”
<Home screen> Select a controller <Status
Summary screen> Configuration button
<Pump Configuration> Left- or Right-
arrow buttons <Boiler Pump screen>
Control Settings button
Boiler Pump
Cycle Count
Boiler pump cycle count. Can be written to
a new value (e.g. if the pump or controller is
replaced).
<Home screen> Select a controller <Status
Summary screen> Configure button
<Configuration Menu> Select Statistics
Configuration line
Boiler Name This parameter allows the installer to give
each controller a unique name.
<Home screen> Select a controller <Status
Summary screen> Configuration button
<Configuration Menu> System ID and
Access
Burner
Cycle Count
This is incremented on each entry to Run. It
can be written to a with a new value if the
burner or controller is replaced.
<Home screen> Select a controller <Status
Summary screen> Configure button
<Configuration Menu> Select Statistics
Configuration line
Burner
Enable
Switch
This parameter enables or disables the burner
control. When it is off, the burner will not fire.
<Home screen> Select a controller <Status
Summary screen> Operation button
<Operation screen>
Burner Run
Time
This measures the time spent in the Run state.
It can be written to with a new value if the
burner or controller is replaced.
<Home screen> Select a controller <Status
Summary screen> Configure button
<Configuration Menu> Select Statistics
Configuration line
CH (Central
Heat) D gain
This gain is applied to the Differential term of
the PID equation for the CH loop.
<Home screen> Select a controller <Status
Summary screen> Configuration button
<Central Heat Configuration> Arrow keys
<Modulation screen>
CH (Central
Heat)
Enable
This parameter determines whether the Central
Heat loop is enabled or disabled. When it is
disabled, heat demand caused by the input
assigned to the CH loop is ignored. It may be
disabled to turn it off temporarily, or because
the application does not use this feature.
Home screen/ Select controller/ Status
Summary screen/ Configuration button/
Central Heat Configuration/ Arrow keys/
Central Heat screen
CH (Central
Heat) Frost
Protection
Enable
The CH frost protection feature can be
enabled to run a pump (or pumps) and
possibly fire the burner whenever the CH
input sensor is too cold.
Home screen/ Select controller/ Status
Summary screen/ Configuration button/
Anti-Condensation Configuration/
Summary of Contents for BNTH1000
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Page 12: ...Page 8 Bradford White Corp Fig 6 Dimensions BNT 1700...
Page 38: ...Page 34 Bradford White Corp Fig 21 Ladder Diagram...
Page 39: ...Page 35 Brute Elite Boilers and Water Heaters Fig 22 Wiring Diagram...
Page 40: ...Page 36 Bradford White Corp...
Page 52: ...Page 48 Bradford White Corp Fig 51 Connection Terminals...
Page 130: ...Page 126 Bradford White Corp Fig 141 Rear Panel BNT1000 Fig 142 Rear Panel BNT1700...
Page 131: ...Page 127 Brute Elite Boilers and Water Heaters Fig 143 Machine Frame BNT1700...
Page 132: ...Page 128 Bradford White Corp Fig 144 Front Panels and Covers BNT1000 and BNT1700...
Page 133: ...Page 129 Brute Elite Boilers and Water Heaters Fig 145 Burners and Combustion Chamber BNT1000...
Page 134: ...Page 130 Bradford White Corp Fig 146 Burners and Combustion Chamber BNT1700...
Page 136: ...Page 132 Bradford White Corp Fig 149 Burner Detail BNT1700...
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