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1
Service
Advanced Setup
Freeze Protection Pump On
The SMART TOUCH control will turn on the boiler and
system pump outputs whenever the inlet temperature drops
below this setting. This is done to prevent the water in
the heat exchanger from freezing. Certain low-temperature
applications (such as snow melt) can operate at temperatures
around freezing, so this setting needs to be lowered in these
cases. The temperature at which the pump outputs are turned
on, can be accessed through the Freeze Protection Pump On
parameter.
Freeze Protection Burner Off
Once the burner has started firing due to a low inlet temperature,
the inlet temperature must increase by this amount before the
burner turns back off. The installer can adjust this differential
by accessing the Freeze Protection Burner Off parameter.
Anti-Cycling Time
Once a SH demand has been satisfied, a set amount of time
must elapse before the control will respond to a new SH
demand. The control will block the new heat demand and
anti-cycling will be shown in the display until the time has
elapsed or the water temperature drops below the anti-cycling
differential. This parameter can be changed by the installer by
accessing the Anti-Cycling Time parameter.
Freeze Protection Burner On
If running the pumps does not prevent the inlet temperature
from falling closer to freezing, the SMART TOUCH control
will fire the burner at low fire if in the ON state. The installer
can adjust the temperature at which the burner fires by
adjusting the Freeze Protection Burner On parameter.
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Anti-Cycling Differential
The control will bypass the anti-cycling time if the inlet
water temperature drops too much. The control will use
the inlet water temperature at the time the boiler shuts off
as the starting point. If the inlet temperature drops below
this temperature parameter the control will abort anti-
cycling and allow the boiler to fire. This parameter can be
changed by the installer by the Anti-Cycling Differential
parameter.
Freeze Protection Burner On
If running the pumps does not prevent the inlet
temperature from falling closer to freezing, the SMART
TOUCH control will fire the burner at low fire if in the
ON state. The installer can adjust the temperature at
which the burner fires by adjusting the Freeze Protection
Burner On parameter. the boiler firing rate.
parameter is adjustable by accessing the Controlling
Sensor parameter. The sensor selections are as follows:
The outlet sensor regulates the firing rate based on the
outlet water temperature of the boiler and the inlet
sensor regulates the firing rate based on the inlet water
temperature of the boiler. If the outlet sensor is selected,
and the optional system supply sensor is connected, the
control will regulate the firing rate based on the system
supply sensor temperature.
Inlet Control Time Delay
This parameter is the time allowed before the control
switches from inlet to outlet control for space heating
(SH).
Minimum Boiler Rate (%)
This parameter setting will define the minimum
modulation of the boiler during normal operation.
Service Manual
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