Manual Firing Rate; Temp Limits - Bradford White OmniTech BONH1250 Installation And Operation Instructions Manual

Page 80
8.D.6 Manual Firing Rate
To navigate to the Manual Firing Rate Screen, touch the Manual Firing Rate Icon on the Configuration Screen.
The Manual Firing Rate Control Screen allows the adjustment of the following parameters:
• Enable/Disable – Enables and disables the manual firing rate functionality.
• Fan Speed – With the manual firing rate functionality enabled, an operator can manually set the firing rate. This
functionality is used for combustion adjustment purposes. With the manual firing rate functionality enabled, and
the desired fan speed set, apply a call for heat at CH1/DHW1 and the boiler/heater will step through the ignition
process and run at the set fan speed.
• Time Out – is the setable amount of time that the operator has to adjust the Manual Firing Rate before the control
will go back to automatic. It's a walkaway timer and safety feature.
8.D.7 Temp Limits
To navigate to the Temp Limits Screen, touch the Temp Limits Icon on the Configuration Screen.
The Temp Limits Configuration Screen allows adjustment of the following parameters:
• Auto Reset CH– The temperature at which the unit will shut down when outlet temperature exceeds its maximum
auto reset set point. The control will automatically reset, based on the reset differential.
• Manual Reset CH – The temperature at which the unit will shut down when outlet temperature exceeds its maximum
manual reset set point. The control will require manual reset in this condition.
• Reset Differential – The value below the
Auto Reset temperature at which the unit
will automatically reset itself and resume
functionality.
• Delta T Parameters– The MIN and MAX
Temperature between which your system
will fire.
• Flue Limitation – Sets the flue temp
limitations.
• Outlet Limitation Parameters – Allows
for the adjustment of Min and Max Outlet
Temps.
C O N F I G U R A T I O N