Heat Pump Or Heat Recovery - Daikin VRV Reference Manual

Heat Pump or Heat Recovery?

The Various Heat/Cool Changeover Options
Heat Pump
The 2 pipe Heat Pump system is the equivalent of a 2-pipe chilled
»
water system
A heat pump system provides the means of heating OR cooling
»
at any given time
Multiple heat pump systems can be zoned and will work
»
independently of each other
When demand is met by an indoor unit the unit will work on fan
»
only or the fan will cycle on/off until demand returns or mode
change occurs
Heat Recovery
The 3 pipe Heat Recovery system is the equivalent of a 4-pipe
»
chilled water system
A heat recovery system has the ability to provide simultaneous
»
heating AND cooling
When both heating and cooling occur simultaneously, system
»
and building energy can be better utilized
When demand is met by an indoor unit the unit will work on
»
fan only or the fan will cycle on/off until demand returns
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Cooling Cooling
Cooling Cooling
Heating Heating
Heating Heating