24
VA(H,W) Lead lag Operation
Master Boiler
Description
Electrical Connection(s)
Programming Instructions
•
Master boiler lead lag
setup
•
Modulates on system
sensor connected to
master boiler
•
System temperature
sensor must be
connected to boiler
#1.
•
Outdoor temperature
sensor must be
connected to boiler
#2.
1)
Place toggle switch to
LOCAL
2)
Press
and
3)
Select
System Identification & Access
4)
Verify
MB1 Modbus address
= 1
5)
Verify
MB2 Modbus address
= 1
6)
Select
Lead Lag Master Configuration
7)
Select
Master Enabled = Enabled
Fixed Setpoint operation
8)
Enter
CH
Setpoint
(Fixed setpoint)
4-20mA/ 0-10Vdc setpoint operation
9)
Select
[Advanced Settings >]
10) Press the to arrive at
Central Heat
11) Select
Setpoint Source = S2 (J8-6) 4-20mA
12) Select
4mA water temperature
13) Select
20mA water temperature
14) Select
Lead Lag Slave Configuration
15) Select
Slave enabled = Enable slave for built-in Lead Lag master
Summary of Contents for Valiant-FT II Series
Page 2: ...99 0419 Rev 00...
Page 40: ...36 PART 9 PIPING DIAGRAMS Figure 40 Single Boiler Hydronic Heating Zoned Piping...
Page 41: ...37 Figure 41 Multiple Boiler Hydronic Heating Zoned Piping...
Page 42: ...38 Figure 42 Single Boiler with DHW Tank Hydronic Heating Zoned Piping...
Page 43: ...39 PART 10 PARTS LIST...
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Page 60: ...56 PART 11 TUBING DIAGRAM...
Page 61: ...57 PART 12 WIRING DIAGRAM...
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