Overview of Primary Product

Radiant Ready 30E Installation Guide
21
Section 9
Boiler Control Settings
The boiler control offers two modes of operation:
Fixed Setpoint and Outdoor Reset.
Warning: Do not set boiler setpoint
temperature above 185°F (85°C).
Fixed Setpoint Mode
(Outdoor Sensor Not Installed)
Important! When running in Fixed
Set Point mode, do not connect the
outdoor temperature sensor to the unit.
Use this mode for installations where the boiler
target temperature remains at a fixed temperature
that does not vary in relation to the outdoor
temperature. When the room thermostat calls for
heat, the circulating pump will start and the boiler
will activate the number of stages required to achieve
and maintain the outlet temperature of the boiler
near the selected target temperature.
Outdoor Reset Mode
(Outdoor Sensor Installed)
Important! When running in Outdoor
Reset mode, connect the Outdoor
Temperature Sensor (A3503015) to the unit
before applying electrical power to the unit.
For wiring instructions, see Section 4:
Electrical Power Connections. Be sure to
install the Outdoor Temperature Sensor
(A3503015) in an area that is protected from
the elements and direct sunlight.
Use this mode for installations where the boiler
target temperature shall modulate in relation to the
outdoor temperature. When the outdoor temperature
is colder, the boiler target temperature will increase.
When the room thermostat calls for heat, the
circulating pump will start and the boiler will activate
the number of stages required to achieve and maintain
the outlet temperature of the boiler near the target
temperature established by the controller according
to the outdoor temperature.
Boiler Control Display
The boiler control features an LCD display to make
all adjustments and to view system operation.
Refer to Figure 9-1 below for a description of the
fields on the display.
Boiler Ta rget Temperature
Actual Boiler Temperature
Radiant in Concrete
Radiant Between Joists
Cast-iron Radiator
Baseboard
Warm Weather Shut Down
Abnormal Operation
Number of Stages in Operation
Operating in Electric Mode
Pump Off Delay Setting
Heating Pump Running
Boost System Engaged
Temperature Units
Figure 9-1: Boiler Control Display