Slant/Fin EM-10 Operation Manual page 5

MODE 4
(Outdoor Reset and Setpoint with Parallel Piping)
Mode 4 is designed for outdoor reset and setpoint operation
using parallel piping. The heat demand is available to provide
outdoor reset for space
setpoint can be used to heat an indirect domestic hot
water tank.
Once a heat demand is present, the control stages the
boiler to maintain the calculated outdoor reset target at the
boiler outlet sensor. Refer to "Outdoor Reset Operation"
section for a description of outdoor reset operation.
Once a setpoint demand is present, the control stages the
boiler to maintain the boiler target at the boiler outlet sensor.
If both demands are present at the same time, the control
targets the higher of the two requirements. Refer to "Setpoint
Operation" section for a description of setpoint operation.
Mode 4
Relay
Factory
Installed
Boiler
Outlet
Sensor
Boiler Inlet Sensor (Included)
EM-10-40 Operation and Instruction Manual
heating systems.
Outdoor
BTC
Sensor
MODE 5 (Outdoor Reset and Setpoint with Primary/
Secondary Piping)
Mode 5 is designed for outdoor reset and setpoint operation
using primary / secondary piping. The heat demand is
The available to provide outdoor reset for space heating systems.
The setpoint demand can be used to heat an indirect
domestic hot water tank.
Once a heat demand is present, the control stages the
boiler to maintain the calculated outdoor reset target at the
boiler supply sensor. Refer to "Outdoor Reset Operation"
section for a description of outdoor reset operation.
Once a setpoint demand is present, the control stages the
boiler to maintain the boiler target at the boiler supply
sensor. If both demands are present at the same time, the
control targets the higher of the two requirements. Refer to
section "Setpoint Operation" for a description of setpoint
operation.
Mode 5
Factory
Installed
Boiler
Outlet
Sensor
Outdoor
BTC
Sensor
Relay
Secondary
Piping
Sensor
(Included)
Boiler Inlet Sensor (Optional)
5