System for increasing the temperature of air initially delivered

Details System for increasing the temperature of air initially delivered System for increasing the temperature of air initially delivered

1998-02-24

1999-07-06

Lazarus, Ira S.

Heat exchange

With timer, programmer, time delay, or condition responsive...

Having heating and cooling capability

165242, 165288, 237 28, F25B 2900, G05D 2300

Patent

active

059186682

ABSTRACT:
A system (10) for increasing the temperature of air initially delivered by an existing heat pump system (100) is provided which may be easily added to the existing heat pump system. System (10) includes a heat pump comfort controller (12) having a plurality of control signal leads (14, 16, 18 and 20) which are coupled in parallel relationship with a respective plurality of control signal leads (114, 116, 118 and 120) of heat pump system (100) interconnecting the heat pump indoor unit (110) with the heat pump outdoor unit (112). Heat pump comfort controller (12) includes a thermostat (50) for sensing the outdoor ambient air temperature and includes a contact (52) that closes when the outdoor ambient temperature falls below a predetermined value, conducting a control signal from the lead (14) for signaling the energization of supplemental heating units (132) of heat pump system (100). System (10) also includes a duct thermostat (62) which senses the temperature of the main supply air duct (130) of heat pump system (100) for de-energizing the supplemental heating units when the main supply air duct temperature reaches a predetermined value.

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patent: 5332028 (1994-07-01), Marris
patent: 5488218 (1996-01-01), Olsen et al.

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