LAARS NeoTherm NTV (Sizes 150–850 MBTU/h) - Install and Operating Manual - Manual (Page 79)

Page 75 N eo T herm Boilers and Water heaters
Name PW? Function How to get there
Pump exercise interval Y The system can be set to exercise the pumps at
set intervals. Enter a non-zero value to turn on the
function.
Info/ Advanced Setup/ System
Config./ Pump Config.
Pump exercise time Y If the pump exercise feature is enabled, this value
sets the length of time that each pump will be
exercised.
Info/ Advanced Setup/ System
Config./ Pump Config.
Set high fire Y This is used during combustion setup to set the
“high fire” condition.
Info/ Test/ Forced Rate
Set low fire Y This is used during combustion setup to set the “low
fire” condition.
Info/ Test/ Forced Rate
Setpoint (LL) - When using the Lead/ Lag system to control
multiple boilers –
This setpoint is used to control the hydronic (Central
Heat) function.
Info/ Advanced Setup/ Lead Lag
Configuration/ LL Master Config.
Setpoint source (CH) Y Set to “Local.” Info/ Advanced Setup/ CH
Configuration
Setpoint source (LL) Y When using the Lead/ Lag system to control
multiple boilers –
Set to “Local.”
Info/ Advanced Setup/ Lead Lag
Configuration/ LL Master Config.
Slave enable (LL) - When using the Lead/ Lag system to control
multiple boilers –
One of the controllers must be set up as the Lead/
Lag Master to supervise the Lead/lag system.
The controllers on all of the other boilers must be
enabled as slaves. See the section on “About Lead/
Lag.”
The choices are: Disable/ Enable via Modbus
Master/ Enable via SOLA Master
Info/ Advanced Setup/ Lead Lag
Configuration/ LL Slave Config.
Slave mode (LL) Y When using the Lead/ Lag system to control
multiple boilers –
Set to “Equal Run Time.”
Info/ Advanced Setup/ Lead Lag
Configuration/ LL Slave Config.
Start test Y This is used during combustion setup to start the
test firing.
Info/ Test
System pump control Y The System pump can be turned on manually, or it
can be set to operate automatically.
Info/ Test/ Manual Pump Operation
Info/ Advanced Setup/ System
Config./ Pump Config.
System pump overrun
time
Y This indicates how long the System pump will
remain on after demand from any source ends.
Info/ Advanced Setup/ System
Config./ Pump Config.
Temperature units - Fahrenheit or Celsius Info/ Advanced Setup/ System
Config./ System Config.
Warm weather shutdown Y The system can be set to shut down if the outdoor
temperature rises above a certain value.
Info/ Advanced Setup/ CH
Configuration/ Warm Weather
Shutdown
Warm weather shutdown
setpoint
- If warm weather shutdown is enabled –
If the outdoor temperature is higher than this value,
the system will be shut off for Central Heating
functions.
Info/ Advanced Setup/ CH
Configuration/ Warm Weather
Shutdown