A heat pump is a “reversible” air conditioning system, so it can remove heat from the indoor air (and reject it outdoors) or the opposite. The normal supplemental heating for cases when it is too cold outdoors for this to be effective is an electric coil.
A typical split (unitary) system can use any type of heating coil.
Relative efficiencies of the two systems vary greatly.
p.s., Also, become familiar with the EnergyPlus Input Output Reference. It contains a LOT of useful information about these systems./
James V Dirkes II, PE, BEMP, LEED AP
www.buildingperformanceteam.com
Energy Analysis, Commissioning & Training Services
1631 Acacia Drive, Grand Rapids, MI 49504 USA
616 450 8653
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of migue885
Sent: Wednesday, October 17, 2012 1:31 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] HVACtemplate:system:unitary or HVACtemplate:syste
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