Zone control of DPW unit
Zone control of the DPW unit is performed by a zero voltage or X-X contact from
a relay or zone control panel closing when unit operation is required.
You will find two brown wires attached to the upper Molex connector of the main PC board.
These wires can be extended with 18 gauge thermostat wire and only connected to dry
contacts from your zone control panel end switch. See example wire diagrams on the last
four pages of this manual.
Brown Wires
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