Lochinvar 1 Boiler User Manual


 
1 Service
28
• BMS Modulation at Minimum Voltage - Determines the
modulation rate of the unit or cascade when the BMS
input voltage is at or below the setting of the BMS Voltage
at Minimum Modulation parameter. This parameter is
only active when the BMS Type is set to modulation rate.
This parameter can only be changed by the installer. The
range of this parameter is 0% to 100%. The default value
is 14.5%.
BMS Modulation at Maximum Voltage - Determines the
modulation rate of the unit or cascade when the BMS
input voltage is at or above the setting of the BMS Voltage
at Maximum Modulation parameter. This parameter is
only active when the BMS Type is set to modulation rate.
This parameter can only be changed by the installer. The
range of this parameter is 14.5% to 100%. The default
value is 100%.
• BMS Voltage at Minimum Modulation - Determines the
voltage at which the external signal begins to increase the
modulation rate (power). Below this voltage, the
modulation rate (power) will be at the setting of the BMS
Modulation at Minimum Voltage parameter. This
parameter is only active when the BMS Type is set to
modulation rate (power). This parameter can only be
changed by the installer. The range of this parameter is
0V to 10V. The default value is 2V.
BMS Voltage at Maximum Modulation - Determines the
voltage at which the external signal forces the modulation
rate (power) to the setting of the BMS Modulation at
Maximum Voltage parameter. This parameter is only
active when the BMS Type is set to modulation rate
(power). This parameter can only be changed by the
installer. The range of this parameter is 2V to 10V. The
default value is 10V.
ModBus Timeout
Reference page 18 for information regarding changing
parameters.
Time - The time is displayed in the upper right-hand corner of
the display. It is displayed in 24 hour format. Reference the
night setback parameters on page 24 for information regarding
adjusting the date and time.
Back button - Pressing this button will back the screen up to the
previous screen.
Service Manual