LAARS Heating Systems
Page 26
Figure 21. Ladder Diagram.
port 1 (MB1) terminal A of the first boiler to Modbus
port 1 (MB1) terminal A of the second boiler.
b.
If there are more boilers in the system connect a
wire from Modbus port 1 terminal A of boiler 2 to
Modbus port 1 terminal A of boiler 3.
c.
Repeat these steps until all Modbus port 1 terminal
A connections are wired.
d.
Repeat the above steps for Modbus port 1 terminal
B and C connections to complete the wiring.
e.
Connect the drain wire from the twisted pair wire
to ground on one end of the wire only.
7.10 Wiring Diagrams
(see
Figures 21-22)
Caution
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing
Figure 20. System Pump Connections on Control Panel.
Summary of Contents for Mascot II
Page 6: ...LAARS Heating Systems Page 6 Figure 2 Location of Components...
Page 27: ...Mascot II Boilers and Water Heaters Page 27 Figure 22 Wiring Diagram...
Page 42: ...LAARS Heating Systems Page 42 Figure 28 Panel Assembly Door Top...
Page 43: ...Mascot II Boilers and Water Heaters Page 43 Figure 29 Panel Assembly Door Middle...
Page 44: ...LAARS Heating Systems Page 44 Figure 30 Panel Assembly Door Bottom...
Page 45: ...Mascot II Boilers and Water Heaters Page 45 Figure 31 Base Jacket Assembly...
Page 46: ...LAARS Heating Systems Page 46 Figure 32 Heat Exchanger Cabinet Fan...
Page 47: ...Mascot II Boilers and Water Heaters Page 47 Figure 33 Heat Exchanger Burner Components...
Page 48: ...LAARS Heating Systems Page 48 Figure 34 Pump Assembly Components...
Page 49: ...Mascot II Boilers and Water Heaters Page 49 Figure 35 Plumbing Components...
Page 50: ...LAARS Heating Systems Page 50...
