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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-CA>I have an eQUEST VRF model using PVVT and variable speed compressors as a workaround. The model had the condenser set as air cooled. In the course of a design meeting I learned that the VRF system was to have a water cooled condenser loop for the condenser units. No problem I thought and happily changed the condenser source on my PVVT units from air-cooled to water-cooled. In doing so however, no heat was added to or rejected to the WLHP loop from the units. The only way I could have my pseudo PVVT/VRF units interact with the condenser loop was to turn the compressor control from “variable speed” to “single speed”. No underheated/undercooled hours were reported, but no load was carried on the condenser loop. Have others had this experience? Suggestions?<o:p></o:p></span></p></div></body></html>