Control system for a heat pump system

Refrigeration – Time or program actuator – Defrosting

Patent

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Details

200 38D, F25D 2108, H01H 708

Patent

active

045819017

ABSTRACT:
A control system provides slow and fast defrost cycles for a heat pump by providing an auxiliary manual switch to select different cams of a timing means for cycle operation. Selective ones of the cam switches are connected in parallel to permit two different defrost time cycles utilizing four cams rotating at the same speed.

REFERENCES:
patent: 3333121 (1967-07-01), Ross
patent: 3610848 (1971-10-01), Rosenberg
patent: 4123915 (1978-11-01), Stoor

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