August 12, 2008


Application Information

Two-Stage Interface Modules


WF-DFHP2 & WF-HP2 Part Number Clarification

In recent months we have seen some confusion in the field regarding the correct application of interface part numbers WF-DFHP2 and WF-HP2. We’d like to take this opportunity to clearly define the differences between these two modules.

WF-HP2

This interface module is used in applications which include a 2-stage heat pump, fossil fuel furnace (1 or 2-stage), and a WarmFlo II Plenum Heater. This interface is similar to the WF-EZ3 or WF-LGR4 except for 2-stage heat pump equipment.

WF-DFHP2

This interface module is used in applications which include a 2-stage heat pump and a fossil fuel furnace (1 or 2-stage) only. This interface is not used for systems that include a WarmFlo II plenum heater.


Feel free to contact us with any questions or comments:
sales@electromn.com
763.295.4138/800.922.4138