Mode 1 And 2 Setpoint & Dhw Operation; Applications - Slant/Fin SF-10 Operation And Instruction Manual

MODE 1 and 2 – Setpoint & DHW Operation

Applications

MODE 1 SETPOINT & DHW OPERATION – PARALLEL PIPING
The control receives a heat demand provided from zone valve end switches or a switching relay end switch. The control turns
on the boiler pump and operates the boiler to maintain the setpoint boiler target temperature at the boiler outlet
sensor whenever a heat demand is present. The control receives a DHW Demand from a DHW aquastat. The control turns on
the DHW pump and operates the boiler to maintain the DHW boiler target temperature at the boiler outlet sensor whenever a
DHW demand is present.
MODE 2 SETPOINT & DHW OPERATION – PRIMARY / SECONDARY
The control receives a heat demand provided from zone valve end switches or a switching relay end switch. The control turns
on the boiler pump and operates the boiler to maintain the setpoint boiler target temperature at the boiler supply
sensor. The control receives a DHW Demand from a DHW aquastat. The control turns on the DHW pump, boiler pump,
and operates the boiler to maintain the DHW boiler target temperature at the boiler supply sensor whenever a DHW demand
is present.
BTC
DHW
Tank
Boiler
Outlet
Sensor
Boiler
Inlet
Sensor
BTC
Boiler
Outlet
Sensor
DHW
Tank
Boiler
Supply
Sensor
Boiler
Inlet
Sensor
Model SF-10 Control Instructions Manual 17