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Rev 2.1
5-16.5 To Enable Or Disable Lead Lag CH Loop Outdoor Reset
Configure Lead Lag Master Configuration Advanced Setting Central Heat Outdoor Reset Textbox
(Default: Disabled)
x Select Enable to enable CH loop outdoor reset
x Select Disable to disable CH loop outdoor reset
If outdoor reset is enabled then the current outdoor temperature is used to determine the Setpoint by interpolation
using LL CH Setpoint (or LL CH Time-Of-Day Setpoint if TOD is on), the min water temperature, and the min and max
outdoor temperatures.
5-17 Lead Lag Advanced Setting: DHW Parameter
5-17.1 To Change Lead Lag DHW Priority Source
Configure Lead Lag Master Configuration Advanced Setting DHW Parameter Priority source Textbox
(Default: Disabled)
x Select DHW heat demand for LL DHW heat demand priority
x Select Disable to LL DHW heat demand priority
5-17.2 To Change Lead Lag DHW Priority Method
Configure Lead Lag Master Configuration Advanced Setting DHW Parameter Priority method Textbox
(Default: Boost DHW during priority time)
x Select Boost during priority time
x Select Drop after priority time
5-17.3 To Change Lead Lag DHW Priority Override Time
Configure Lead Lag Master Configuration Advanced Setting DHW Parameter DHW priority override
time Textbox (Default: 5m0s)
x Type in desired time
If this parameter is non zero, then a DHW demand will shift. Its priority vs other demand sources according to the
specified time. The Priority override timing is reset when demand from the DHW source turns off.
5-18 Lead Lag Advanced Setting: Frost Protection Parameter
5-18.1 To Enable Or Disable Lead Lag Frost Protection
Configure Lead Lag Master Configuration Advanced Setting Frost Protection Enable Textbox (Default:
Disabled)
x Select Enable to enable CH loop frost protection
x Select Disable to disable CH loop frost protection
The LL frost protection feature can be enabled to turn the pump and possibly fire the burner whenever the input
sensor is too cold.
5-18.2 To Change Lead Lag Frost Protection Setpoint
Configure Lead Lag Master Configuration Advanced Setting Frost Protection Outdoor Setpoint Textbox
(Default: 32ͼF)
x Type in desired temperature between 32ͼF and 240ͼF (0ͼC and 115ͼC)
This parameter provides the setpoint for frost protection based on outdoor temperature. When the outdoor
temperature falls below this threshold then frost protection will be active.
5-18.3 To Change Lead Lag Frost Protection Rate
Configure Lead Lag Master Configuration Advanced Setting Frost Protection Frost Protection Rate
Textbox (Default: 0%)
x Type in desired rate
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