Honeywell SOLA Controllers – R7910A1138/U Module SOLA™ Hydronic Control

The R7910A SOLA HC is a hydronic boiler control system that
provides heat control, flame supervision, circulation pump
control, fan control, boiler control, and electric ignition function. It
will also provide boiler status and error reporting.
• Frost Protection, Slow Start, Anti-condensate, Boiler Delta-T, Stack
Limit, Boiler Limit, DHW Limit, Outlet T-Rise Limit
• Primary Flame Safeguard Control
• Internal or external spark generator.
• Analog NTC Sensor Inputs (10 kohm or 12 kohm).
• Other Analog Inputs
• PID Load Control
• Digital Inputs
• Digital Outputs
• Analog Outputs
• Algorithm Prioritization
• Two Temperature Loops of Control (CH and DHW)
• High Limit Control-CH, DHW, & Stack (Meets UL 353) using dual
10 kohm NTC sensors.
• Fifteen Item Fault Code History including equipment status at time of
lockout
• Fifteen Item Alert Code Status including equipment status at time of
internal alerts
• 24 Vac Device Power
• 24 or 120 Vac Digital I/O models available.
• Flame Signal test jacks (Vdc)
• Three Status LEDs.
• UV or Flame rod Flame Sensing.
• Flap Valve Check
• Condensate Check
• Neighboring Burner Interaction
• Modbus Heartbeat
• DBI Early Spark Termination
• Flow Switch Input