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Title: Measured Performance of a Low Temperature Air Source Heat Pump

A 4-ton Low Temperature Heat Pump (LTHP) manufactured by Hallowell International was installed in a residence near New Haven, Connecticut and monitored over two winters of operation. After attending to some significant service issues, the heat pump operated as designed. This report should be considered a review of the dual compressor “boosted heat pump” technology. The Low Temperature Heat Pump system operates with four increasing levels of capacity (heat output) as the outdoor temperature drops.
Authors:
Publication Date:
OSTI Identifier:
1220259
Report Number(s):
DOE/GO-102013-3788
6503
Resource Type:
Program Document
Research Org:
CARB
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B) (Building America)
Country of Publication:
United States
Language:
English
Subject:
DOE/GO-102013-3788; NREL/SR-5500-56393; September 2013; low temperature air-source heat pump; space conditioning; defrost; cold climates; COP; efficiency; residential; residential building; CARB; Building America