Data acquisition system and method

Decentralization type control apparatus for an air-conditioning

Defrost control system and display panel

Defrost diagnostic arrangement for self-defrosting refrigerator

Defrost recycle device

Defrost sensing system for freezer compartment

Determination of ambient air temperature outside of an appliance

Determining the amount of working fluid in a refrigeration or he

Determining the coefficient of performance of a refrigeration sy

Device for controlled cooling of a surface

Device for controlling the operation of a refrigeration applianc

Device for detecting loss of refrigerant in an airconditioner

Device for detecting overcharge of refrigerant in air conditione

Device for indicating the formation of ice in refrigeration...

Device for magnetically treating water

Device for monitoring the prevailing temperature in an enclosure

Device responsive to unusual temperature change in refrigerant c

Device to record age of food

Diagnosing a loss of refrigerant charge in a refrigerant system

Diagnostic monitor system for heat pump protection