iWorx® HPU2
502-025, Effective: April 12, 2011
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© 2011 Taco Electronic Solutions, Inc.
Figure 4: HPU2 Wiring Example - Power Isolated
Connecting Input Devices
Thermostat (STAT)
To connect the heat pump thermostat to the unit, attach one wire from the thermostat to STAT (T3) and the other wire to
the adjacent common (T4).
