Patents for F25B 49 - Arrangement or mounting of control or safety devices (13,159)
01/1988
01/12/1988US4718246 Pressure control override
01/12/1988US4718243 Heat pump system and a method of operating same
01/05/1988US4716740 Controller apparatus and method for heat exchange system
12/1987
12/29/1987US4715792 Variable capacity vane type compressor
12/29/1987US4715190 Control and method for modulating the capacity of a temperature conditioning system
12/08/1987US4711096 Leak detection and refrigerant purging system
12/08/1987US4711094 Reverse cycle heat reclaim coil and subcooling method
12/03/1987DE3618460A1 Apparatus for distilling contaminated solvents and solvent mixtures, preferably contaminated solvents of dry-cleaning facilities
11/1987
11/19/1987DE3716393A1 Kaelteanlage Kaelteanlage
11/17/1987US4706470 System for controlling compressor operation
11/17/1987US4706464 Method and apparatus for the automatic control of a sorption heat transfer plant
11/12/1987DE3715437A1 System for economical power distribution in the transition phase of power demands during a process sequence
11/11/1987EP0244501A1 Temperature sensing circuit
11/11/1987CN86107773A Control apparatus of removing ice and frost for air conditioner
10/1987
10/20/1987CA1228409A1 Gas/electric operated absorption refrigerator having automatic flame detection and restart capability status
10/13/1987US4698978 Method of controlling a heating and cooling system
10/07/1987EP0240441A2 Three function heat pump system and method
10/07/1987EP0239837A2 Method of recuperating the condensation heat of a refrigeration system, and refrigeration system for carrying out the method
10/07/1987CN87100650A Device for controlling capacity of compressor
10/06/1987US4697431 Refrigeration system having periodic flush cycles
09/1987
09/24/1987DE3609337A1 Motor-driven heat pump
09/24/1987DE3608868A1 Charging control of a hot-water storage tank heated by a heat pump
09/24/1987DE3608867A1 Charging control of a hot-water storage tank heated by a heat pump
09/22/1987US4694890 Analog computer variable duty modulator
09/15/1987US4694228 Compensation circuit for control system providing pulse width modulated drive signal
09/15/1987US4693089 Three function heat pump system
09/10/1987DE3606860A1 Control arrangement for extracting heat from a fluid by means of a compressor refrigeration machine
09/01/1987US4689967 Control and method for modulating the capacity of a temperature conditioning system
08/1987
08/27/1987WO1987005097A1 A method for analysing and controlling a cooling process
08/27/1987DE3605833A1 Refrigerating machine with automatic reversing system for hot-water preparation
08/26/1987CN86201455U Console for amonia-compressing refrigirator assembly
08/19/1987EP0232746A2 Method of and device for economically and automatically maintaining the concentration of evaporating refrigerant mixtures
08/18/1987US4686835 Refrigeration system
08/18/1987US4686834 Centrifugal compressor controller for minimizing power consumption while avoiding surge
08/12/1987EP0232188A2 Device for controlling the capacity of a compressor
08/05/1987EP0190167A4 Modular refrigeration system.
07/1987
07/29/1987EP0229942A2 Regulating method for refrigerant flow to the evaporator of a cooling plant or a heat pump
07/28/1987CA1224859A1 Integrated control of output and surge for a dynamic compressor control system
07/14/1987US4679411 Stepped capacity constant volume building air conditioning system
07/14/1987US4679404 Temperature responsive compressor pressure control apparatus and method
07/14/1987US4679403 Heat pump apparatus
07/07/1987US4677830 Air conditioning system for automotive vehicles
07/01/1987EP0227504A1 Method of protecting a refrigeration plant against deposits of additives in the refrigerant circuit
06/1987
06/30/1987US4676072 Bypass system for a dual refrigeration cycle air conditioner
06/16/1987US4672816 Cooling system with device for preventing a bad odor from circulating
06/09/1987US4671075 Heat pump system
06/04/1987DE3542361A1 Heat storage installation with a storage tank for a liquid
05/1987
05/26/1987US4668870 Refrigerant level sensor in receiver tank
05/19/1987US4665709 Steam powered heating/cooling systems
05/12/1987US4663942 Air conditioner
05/05/1987US4662185 System of controlling refrigerator temperature
04/1987
04/30/1987DE3538393A1 Device for controlling refrigeration installations operated by burnable gas
04/28/1987US4660387 Controls for refrigerating or air-conditioning units
04/28/1987US4660386 Diagnostic system for detecting faulty sensors in liquid chiller air conditioning system
04/21/1987US4658596 Refrigerating apparatus with single compressor and multiple evaporators
04/14/1987US4656837 Safety arrangement in a gas operated apparatus
04/08/1987EP0217558A2 Diagnostic system for detecting faulty sensors in a refrigeration system
04/07/1987CA1220274A1 Heat exchanger performance monitor
04/01/1987EP0216547A2 Diagnostic system for detecting faulty sensors in liquid chiller air conditioning system
03/1987
03/31/1987US4653285 Self-calibrating control methods and systems for refrigeration systems
03/31/1987US4653280 Diagnostic system for detecting faulty sensors in a refrigeration system
03/24/1987US4651535 Pulse controlled solenoid valve
03/03/1987US4646535 Temperature and pressure monitored refrigeration system
03/03/1987US4646534 Means for refrigeration speed control
03/03/1987US4646530 Automatic anti-surge control for dual centrifugal compressor system
02/1987
02/24/1987US4644755 Emergency refrigerant containment and alarm system apparatus and method
02/03/1987US4640100 Refrigeration system
01/1987
01/27/1987US4638671 Checker for air conditioner
01/27/1987US4638643 Control system for compressor motor used with air-conditioning unit
01/06/1987US4633676 Cooling and heating apparatus
01/06/1987US4633675 Device for controlling the capacity of a variable capacity compressor
01/06/1987US4633674 Refrigeration circuit
01/06/1987US4633672 Unequal compressor refrigeration control system
12/1986
12/30/1986US4631926 Method of obtaining low temperatures and apparatus for implementing the same
12/30/1986EP0205670A1 Refrigerating or heat-pump system
12/16/1986US4628701 Non-flooding remote air cooled condensers
12/16/1986US4628700 Temperature optimizer control apparatus and method
11/1986
11/26/1986EP0202432A2 Method of running a heat pump installation and heat pump installation adapted for caryying-out this method
11/18/1986US4622827 Control apparatus for an air conditioner
11/12/1986CA1213957A Single zone hvac controlled for operation in multiple zone arrangement
10/1986
10/14/1986US4616485 Temperature controller for an air conditioning apparatus
10/08/1986CN85108423A Absorption chilled and hot water apparatus
09/1986
09/30/1986US4614089 Controlled refrigeration system
09/30/1986US4614087 Apparatus for alarming abnormal coolant in space cooling cycle
09/24/1986EP0195279A2 Method for regulating absorption refrigeration plants or heat pumps
09/23/1986US4612776 Method and apparatus for controlling capacity of a multiple-stage cooling system
09/23/1986US4612775 Refrigeration monitor and alarm system
09/23/1986CA1211815A1 Control for a variable capacity temperature conditioning system
09/16/1986US4611470 Method primarily for performance control at heat pumps or refrigerating installations and arrangement for carrying out the method
09/10/1986EP0194029A1 A method of, and apparatus for, controlling the capacity of a variable capacity compressor
09/03/1986CN86100821A Protecting device for compressor
09/02/1986US4608833 Self-optimizing, capacity control system for inverter-driven centrifugal compressor based water chillers
08/1986
08/19/1986US4606403 Apparatus and method for cleaning condenser tubes of a refrigerator
08/13/1986EP0190167A1 Modular refrigeration system.
08/06/1986CN86100612A Device for controlling the capacity of a variable capacity compressor
08/05/1986US4604036 Torque control apparatus for enclosed compressors
08/05/1986CA1209229A1 Air conditioning control system with user power up mode selection
07/1986
07/29/1986US4602484 Refrigeration system energy controller
07/02/1986EP0186332A1 Self-optimizing centrifugal compressor capacity control
07/02/1986CA1207059A Specific coefficient of performance measuring device