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1
Service
(continued)
Table 1E BMS / BAS (This table lists control module parameters; use the sub-tab under the Setup tab to access
them.)
Menu
(as shown on the LCD screen)
BMS Status
BMS Mode
Power (%): Min
Power (%): Max
Volts: Min
Volts: Max
Set point (F): Min
Set point (F): Max
Volts: Min
Volts: Max
Volts to Enable / Disable BMS: Enable
Volts to Enable / Disable BMS: Diff. to Stop
BMS TSAT
BAS Active / Inactive
BAS Out of Order Timer
BMS
BMS (Active / Inactive)
The set point or modulation of the boiler may be controlled
through the 0 - 10V Building Management System (BMS)
input. When the parameter is set to INACTIVE, the 0 - 10V
input will be ignored. When set to ACTIVE, the set point or
modulation will be controlled by the voltage on the 0 - 10V
input, as described below.
BMS Mode (Power / Set Point)
When BMS is set to ACTIVE, this parameter will determine
if the voltage on the 0 - 10V BMS input is converted to
modulation or a set point.
voltage determines the modulation of the boiler. When set
to SETPOINT, voltage determines the set point used by the
boiler.
BMS Volts at Minimum (Power or Set Point)
When BMS is set to ACTIVE, this parameter will determine
the voltage on the 0 - 10V BMS input that represents the
minimum modulation or set point. Any voltage less than
this value will not change the modulation or set point used
by the boiler.
Parameter Name
When set to POWER, the
Min
Value
ACTIVE
POWER
4
POWER MAX
POWER MIN
0
VOLTS MAX
VOLTS MIN
32
SET POINT MAX
SET POINT MIN
0
VOLTS MAX
VOLTS MIN
0
0
ENABLE
ENABLE
5
BMS Volts at Maximum (Power or Set Point)
When BMS is set to ACTIVE, this parameter will determine
the voltage on the 0 - 10V BMS input that represents the
maximum modulation or set point. Any voltage above this
value will not change the modulation or set point used by the
boiler.
BMS Rate at Minimum Volts
This parameter is visible only when BMS Mode is set
to POWER. The value of this parameter determines the
modulation rate when the voltage on the 0 - 10V BMS input
is equal to or less than the BMS Volts at Minimum parameter
value.
BMS Rate at Maximum Volts
This parameter is visible only when BMS Mode is set
to POWER. The value of this parameter determines the
modulation rate when the voltage on the 0 - 10V BMS input is
equal to or more than the BMS Volts at Maximum parameter
value.
Service Manual
Max
Default
Value
Value
INACTIVE
INACTIVE
SETPOINT
POWER
4 or 5
100
100
2
10
10
69.8
185
179.6
2
10
10
10
2
10
0.5
DISABLE
DISABLE
DISABLE
DISABLE
120
30
21
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