System for monitoring the operation of a compressor unit

Communications: electrical – Condition responsive indicating system – Specific condition

Patent

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Details

62125, 62129, 165 111, 340584, 340606, 340648, 340664, G08B 2100

Patent

active

055460739

ABSTRACT:
The electrical current drawn by a drive motor for the compressor unit of a chiller is monitored relative to a real time alarm limit for this electrical current. The real time alarm limit is computed from time to time by a microprocessor. The value of the computed alarm limit will vary with the cooling load being experienced by the chiller's evaporator unit.

REFERENCES:
patent: 4307775 (1981-12-01), Saunders et al.

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