LAARS Mascot LX MLXC 175 MBH - Install and Operating Manual - Manual (Page 37)

Mascot LX Boilers and Water Heaters Page 33
8.3 USER Mode
The USER Mode is for a homeowner or service technician to adjust the most common operating parameters ( See
Table 14 ). In the USER Mode, when the boiler is ON and operating normally, the USER can scroll Up and Down
using the Arrow Keys. Of the 7 viewable parameters, 4 can be adjusted (depending on if they are installed). The USER
adjustable parameters are the Outlet Temp, DHW Setpoint, and Outdoor Air Temp. If the System Setpoint is installed, it
can be adjusted, but then the Outlet Temperature can no longer be adjusted.
These parameters can be adjusted in the USER Mode by pressing the 'Select/OK' button (while in that parameter)
and then using the Up and Down arrows to set to the desired temperature.
Once the desired parameter is displayed, always press 'Select/OK' again to Save that setting.
Table 14. User Mode Displays.
Parameter Display Description Range Default
Outlet
Temp
Outlet Temperature is displayed as well as the 'darkened'
arrow pointing away from boiler icon.
The boiler setpoint (CH) can be changed by pressing 'Select/
OK' until 'Set' is displayed. Use the Arrows to adjust to the
desired Outlet temperature and then press 'Select' to Save. 45 - 189 130
Inlet Temp
Inlet Temperature is displayed as well as the 'darkened'
arrow pointing towards boiler icon
Delta T
Delta T is the temperature difference between the outlet
and inlet. The temperature difference is displayed and both
arrows below boiler icon become
'darkened'.
Stack
Temp
The Stack Temperature is displayed and the box on top of
the boiler icon is
'darkened'.
DHW
Setpoint
If the DHW Sensor is installed, Domestic Hot Water Temperature
is displayed and the the faucet icon will be 'darkened'. The
DHW setpoint can be changed by pressing 'Select' until 'Set'
is displayed on the left. Use the Arrows to adjust to the desired
temperature and then press 'Select' to Save. 68 - 189 120
System
Setpoint
If a System Sensor is installed, it will over-ride the Outlet
Temp, and the System Setpoint will be displayed and the
radiator (system) icon 'darkened'. The system setpoint can
be changed by pressing 'Select'. Use the Arrows to adjust to
the desired temperature and then press 'Select' to Save.
45-189 130
Outdoor
Air Temp
If the Outdoor Air Temperatue Sensor is installed, the house
icon (showing the outdoor sensor) becomes
'darkened' and
the Outdoor Air temperature is displayed.
Setpoint ( ° F)