LAARS NeoTherm LC NTV1700 - Install and Operating Manual User Manual
Page 90
LAARS Heating Systems
Page 86
Label
Description
How to Reach
Lead lag on
hysteresis
When the Lead/Lag function is enabled, the
control system will not fire the boilers until the
temperature at the System sensor drops to the
Lead/Lag CH setpoint minus a hysteresis value
(normally about 10°F).
If Lead/Lag enabled –
<’home’ screen> Lead/Lag Master button
button screen> Lead lag P gain This is part of the damping function (“Proportional”) used when the controller interprets the input from the System sensor. <’home’ screen> Lead/Lag Master button button screen> Advanced Settings button/ Left- or Right- arrow buttons screen> Lead/Lag Slave Enable Select Enable Slave for Built-in Lead/Lag Master. Be sure this is turned on for each controller in the system. <’home’ screen> Select a controller button for LL Slave Configuration Slave Configuration screen> Lead/ Lag Slave Sequence Order Enter the position of this Slave in the sequence. Be sure to enter this for each Slave in the system. <’home’ screen> Select a controller button for LL Slave Configuration Slave Configuration screen> Lead/ Lag Slave Modbus Address Each slave must have a unique Modbus address. Be sure to enter this for each controller in the system. <’home’ screen> Select a controller button for LL Slave Configuration Slave Configuration screen> Lead/Lag Outdoor Reset Enable Enable = Outdoor Reset feature turned on <’home’ screen> Lead/Lag Master button button screen> Advanced Settings button/ Left- or Right- arrow buttons screen> Lead/Lag Outdoor Reset low water temperature This parameter is used as the normal setpoint above the point where Outdoor Reset stops adjusting for a higher outdoor temperature (the Max. Outdoor Temperature value) <’home’ screen> Lead/Lag Master button button screen> Advanced Settings button/ Left- or Right- arrow buttons screen> Lead/Lag Outdoor Reset max outdoor temperature If Lead/Lag is enabled, this is the maximum outdoor temperature at which the Outdoor Reset feature will be active. <’home’ screen> Lead/Lag Master button button screen> Advanced Settings button/ Left- or Right- arrow buttons screen> Lead/Lag Outdoor Reset min outdoor temperature If Lead/Lag is enabled, this is the minimum outdoor temperature at which the Outdoor Reset feature will be active. <’home’ screen> Lead/Lag Master button button screen> Advanced Settings button/ Left- or Right- arrow buttons screen>