Parameter Defaults And Ranges - Bradford White Brute MagnaTech BMGV1600 Installation And Operation Instructions Manual

All Connections to the Lag units must be made prior to
Set up the Lead (Master) controller by going to the Lead
Select OK and then Back out to the Main Menu.
9.8

Parameter Defaults and Ranges

Config Group
CH Config- Central Heat
CH Config- Central Heat
CH Config- Central Heat
CH Config- Setpoint
CH Config- Setpoint
CH Config- Setpoint
CH Config- Setpoint
CH Config- Setpoint
CH Config- Setpoint
CH Config- Setpoint
CH Config- Modulation
CH Config- Modulation
CH Config- Modulation
CH Config- Modulation
CH Config- Modulation
Outdoor Reset Config
Outdoor Reset Config
Outdoor Reset Config
Outdoor Reset Config
Outdoor Reset Config
DHW Config
DHW Config
Table 21. Parameter and Range Table
Parameter Name
CH Enable
Demand Switch
CH has Priority over Lead Lag
Setpoint Source
Setpoint
Time of Day Setpoint
Off Hysteresis
On Hysteresis
4 mA Water Temperature
20 mA Water Temperature
Modulation Sensor
Modulation Rate Source
P Gain
I Gain
D Gain
Enable
Maximum Outdoor Temperature
Minimum Outdoor Temperature
Low Water Temperature
Minimum Boiler Water Temp
DHW Enable
Demand Switch
Wiring Connections for Lead Lag -
Now you can make the Modbus wiring connections
between the units.
See Figure 20 on page 36
The controller in each unit includes two wiring
to communicate with the other units in the Lead Lag
system.
To reach the controller, open the cabinet of the unit by
turning the door lock and then opening the doors.
thicker shielded twisted-pair wire with drain. Two
twisted pairs or three conductors are needed. Wire A
on MB2 of unit 1 must be connected to A on MB2 of
unit 2, wire B on unit 1 goes to B on unit 2, and wire
C on unit 1 goes to C on unit 2. Repeat this wiring
for any other units in the system. Connect all of the
drain wires and ground the drain wire on one end of
the assembly only.
Available settings or Ranges
Enable / Disable
STAT Terminal / Sensor Only
YES / NO
Local / S2 (J8-6) 4-20 mA
40F- 200F
40F- 200F
2F- 30F
2F- 30F
40F- 200F
40F- 200F
Outlet
Inlet
S5 (J8-11) sensor
None
Local
S2 (J8-6) 4-20 mA with Sensor on/off
S2 (J8-6) 4-20 mA with Burner on/off
0-100
0-100
0-100
Disable / Enable
-40F - 120F
-40F - 100F
40F - 200F
40F - 180F
Enable / Disable
Sensor Only
STAT Terminal
Auto: DHW (S6) or EnviroCOM DHW
Auto: DHW (S6) or Sensor only
DHW Sensor with On/Off Temperatures
Page 69
Default
Enable
STAT Terminal
No
Local
140 F
140 F
10F
15F
120F
140F
Outlet
Local
20
10
0
Disabled
65F
0
120F
40F
Enabled
Auto:DHW (S6) or
Sensor Only