emes
06-01-2011, 12:27 AM
We have a site with one PUHY outdoor unit and eight PDFY ducted units. Each PDFY has an attached hydronic coil. Each coil is controlled by a dedicated actuator on a centralized manifold. We are using PAC-YU24HT external heater adaptors on each indoor unit to call for hydronic heat.
The design is for the hydronic heat to be the primary heat source. The PUHY should either be the backup heat source (preferred) or not provide heat at all.
On the outdoor unit SW5-2 enables "backup heating", but we can't find a way to disable the heat pump or make it the backup.
Does anyone know if this is possible?
The design is for the hydronic heat to be the primary heat source. The PUHY should either be the backup heat source (preferred) or not provide heat at all.
On the outdoor unit SW5-2 enables "backup heating", but we can't find a way to disable the heat pump or make it the backup.
Does anyone know if this is possible?