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August 12, 2008 |
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Two-Stage Interface Modules |
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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: |