Control Signal
An analog control signal on 4-20mA (1) input is controlling fire rate.
DHW Tank
A DHW thermostat or sensor is being used to fireboiler in a DHW mode.
Failsafe
Boiler in Failsafe mode – No other Heating Demand may be present.
HeatNet
Call for Space Heat is controlled by HeatNet.
HeatNet DHW
Call for DHW Heat is controlled by HeatNet.
High Fire
High Fire AA is active or T1 and T2 Inputs are active.
T1
T1 Input is active – Low Fire rate
T2
T2 Input is active – Low Fire if T1 Input– High Fire if T1 active
Status Line 1: Setpoint Source – Heating Mode
Status Line 2: Running Status
Status Line 3: Any Fault Information
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