ICC Mirius, Installation Instructions Manual

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12
BOILER INSTALLATION
XP XWH BOILER INSTALLATION
Follow directions under general guidance for connecting module to the Energy Management System and power. This section will guide
the installer on how to mount and connect the module to the boiler.
Open the door on the low voltage wiring box on the back side of the heater to see the terminal strip where to connect the gateway to the
boiler as shown in Figure 32
Figure 32. Boiler Terminal Strip
Inside the cover of the box shows the wiring legend for the terminal strip (see
Figure 33
).
Figure 33. Terminal Strip Wiring Legend
Place the Gateway on top of the heater or conveniently nearby.
Locate a knock out on the right side of the low voltage box to run the communication cable through to the inside of the low voltage box.
The boiler does not have an RJ-45 connector as do the water heaters to connect Port A of the gateway, so the plug on the other end of
the communications cable must also be cut off with a wire cutter. Locate and strip the insulation ½ inch from the brown, brown/white
and blue/white wires. Connect the brown/white wire to COM2_A, the brown wire to COM2_B, and the blue/white wire to COM2_C.