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US20120240602 REFRIGERANT WITH LUBRICATING OIL FOR REPLACEMENT OF R22 REFRIGERANT  
An apparatus and method wherein potential ozone layer-damaging chlorodifluoromethane (Refrigerant R-22) is substituted with a mix of less environmentally damaging refrigerants pentafluoroethane...
US20130014520 Apparatus to Clear Oil from the Hoses and Front End of a Recovery Recharge Machine  
A refrigerant recovery unit is provided that can recover and recharge refrigerant. The unit is further configured with a pair of service hoses and a refrigerant control circuit operable to receive...
US20150219357 HVAC CONTROLLER WITH USER-FRIENDLY INSTALLATION FEATURES FACILITATING BOTH DO-IT-YOURSELF AND PROFESSIONAL INSTALLATION SCENARIOS  
A thermostat may include a processing system, a plurality of HVAC connectors configured to receive a corresponding plurality of HVAC control wires, and a connection sensing circuit coupled to the...
US20130247596 METHOD OF MEASURING THE REFRIGERANT RECOVERED AND A REFRIGERANT RECOVERY AND RECHARGE DEVICE  
A method of measuring weight of the refrigerant recovered and a device for refrigerant recovery and recharge device is disclosed. A connection is established between the refrigerant recovery path...
US20120291457 Pressure Decay Leak Check Method and Apparatus  
Refrigerant recovery unit is provided that includes steps to test for refrigerant leaks. The steps include providing a close loop with the hoses that connect to a refrigerant system, measuring the...
US20150211773 METHOD FOR FILLING MIXED REFRIGERANT CONTAINING 2,3,3,3-TETRAFLUOROPROPENE  
A principal object of the present invention is to provide a method for filling a refrigerant mixture. According to this method, when a non-azeotropic refrigerant mixture comprising HFC-32 and...
US20130298578 REFRIGERANT CONVERSION KIT AND METHOD FOR A REFRIGERANT RECOVERY UNIT  
A method for converting a refrigerant recovery unit from use with a first refrigerant to use with a second refrigerant includes the steps of opening, with a controller, solenoids along a...
US20140174111 BACKGROUND TANK FILL BASED ON REFRIGERANT COMPOSITION  
A portable recovery unit for automatically filling a background tank of blended refrigerant includes a main tank for holding recovered refrigerant from a vehicle A/C system which has a first...
US20110061407 BACKGROUND TANK FILL BASED ON REFRIGERANT COMPOSITION  
A portable recovery unit for automatically filling a background tank of blended refrigerant includes a main tank for holding recovered refrigerant from a vehicle A/C system which has a first...
US20110146304 INTERNAL CLEARING FUNCTION FOR A REFRIGERANT RECOVERY/RECHARGE MACHINE  
An apparatus and method providing a refrigeration servicing system that comprises a clean refrigerant source, a recovery circuit and a flushing circuit. The recovery circuit can be configured to...
US20140260354 Refrigerant Service Hose Check Valve Device and Method  
A service hose includes a service coupler and a check valve assembly. The service coupler is configured to fluidly connect the service hose to a refrigeration system. The check valve assembly is...
US20070266717 Automatic refill system for an air conditioning system  
An automatic recharge system (22) is provided for a transcritical cooling system (10). The recharge system (22) includes a refrigerant container (30) capable of storing a refrigerant charge at a...
US20100087322 ELECTRICITY TRANSMISSION COOLING SYSTEM  
A cooling system includes a first section of high temperature superconducting (HTS) cable configured to receive a first flow of coolant and to permit the first flow of coolant to flow...
US20120167599 COMPOSITION COMPRISING CIS-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE AND TRANS-1,2-DICHLOROETHYLENE, APPARATUS CONTAINING SAME AND METHODS OF PRODUCING COOLING THEREIN  
Disclosed herein is an air conditioning or refrigeration apparatus, and in particular, a chiller apparatus containing a composition comprising 1,1,1,4,4,4-hexafluoro-2-butene and...
US20140373559 REFRIGERATION APPARATUS AND METHOD FOR DETECTING WHETHER DIFFERENT REFRIGERANT HAS BEEN CHARGED INTO THE SAME  
A method for detecting whether a different refrigerant has been charged into a refrigeration apparatus including a refrigerant circuit includes: a charging step of charging a refrigerant into the...
US20110296854 Method of Adding Adjacent High-Temperature Heating-Side for Absorption Heat  
This invention belongs to the area of heat pump/refrigeration technology, which provides absorption heat pump of multiterminal heating and the ways of additional adjacent high-temperature...
US20120324921 METHOD FOR RECOVERING REFRIGERANT FROM A REFRIGERATION EQUIPMENT  
A method for recovering refrigerant from an external refrigeration equipment by a refrigerant recovery device includes recovering the refrigerant from the refrigeration equipment in a main...
US20110041523 CHARGE MANAGEMENT IN REFRIGERANT VAPOR COMPRESSION SYSTEMS  
A refrigerant vapor compression system includes a compression device, a refrigerant heat rejection heat exchanger, an expansion device, and a refrigerant heat absorption heat exchanger disposed in...
US20090217679 REFRIGERATION COOLING SYSTEM CONTROL  
A controller is configured to perform at least one of loading and unloading at least one of a plurality of refrigerant compressors to a refrigeration cooling system based at least upon an enthalpy...
US20130025299 COMPOSITION COMPRISING 2,3,3,3-TETRAFLUOROPROPENE AND 1,1,1,2-TETRAFLUOROETHANE, CHILLERS CONTAINING SAME AND METHODS OF PRODUCING COOLING THEREIN  
Disclosed herein is a chiller apparatus containing a composition comprising from about 6 to about 70 weight percent 2,3,3,3-tetrafluoropropene and from about 30 to about 94 weight percent...
US20130219928 REFRIGERANT CHARGING METHOD FOR REFRIGERATION DEVICE HAVING CARBON DIOXIDE AS REFRIGERANT  
A refrigerant charging method includes installing, cooling, confirming, and moving steps. In the installing step, a refrigeration device is installed on site. In the cooling step, a container is...
US20140174110 USE OF R-1233 IN LIQUID CHILLERS  
This invention relates to the use of chloro-trifluoropropenes as refrigerants in negative-pressure liquid chillers and methods of replacing an existing refrigerant in a chiller with...
US20100326095 USE OF R-1233 IN LIQUID CHILLERS  
This invention relates to the use of chloro-trifluoropropenes as refrigerants in negative-pressure liquid chillers and methods of replacing an existing refrigerant in a chiller with...
US20130186115 LOW GWP HEAT TRANSFER COMPOSITIONS  
Heat transfer compositions and methods including (a) HFC-32; (b) HFO-1234ze; and (c) either or both of HFC-152a and/or HFC-134a.
US20090183516 INSPECTION PORT  
A manifold gauge set has at least one sight glass window for viewing contents of a refrigeration system or an air conditioning system being serviced. The window may be non-planar to achieve an...
US20120011864 Refrigerant Additive Compositions Containing Perfluoropolyethers  
The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a...
US20130118187 REFRIGERANT CHARGING ASSEMBLIES AND METHODS OF USE  
Refrigerant charging systems and methods of use are described herein. A refrigerant charging system may include a conduit, a valve releasably connectable to the outlet portion and coupled to a...
US20140264147 Low GWP heat transfer compositions containing difluoromethane, A Fluorinated ethane and 1,3,3,3-tetrafluoropropene  
Heat transfer compositions, methods and use wherein the composition comprising: (a) from about 5 to about 20% by weight of HFC-32; (b) from about 70% to about 90% by weight of HFO-1234ze; and (c)...
US20150197677 COMPOSITIONS COMPRISING Z-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE AND 2,2-DICHLORO-1,1,1-TRIFLUOROETHANE AND METHODS OF USE THEREOF  
In accordance with the present invention a composition is provided. The composition comprises Z-1,1,1,4,4,4-hexafluoro-2-butene (Z-HFO-1336mzz) and 2,2-dichloro-1,1,1-trifluoroethane (HCFC-123)....
US20140060091 Method of servicing an aircraft cooling system and aircraft cooling system  
A method of servicing an aircraft cooling system comprises connecting a refilling container containing a two-phase refrigerant to a refrigerant connection provided in a cooling circuit of the...
US20140060090 Method of servicing an aircraft cooling system and aircraft cooling system  
A method of servicing an aircraft cooling system comprises connecting a refilling container containing a two-phase refrigerant to a refrigerant connection provided in a cooling circuit of the...
US20090064699 DRAIN PAN LINER, DRAIN PAN KIT, AND METHOD OF USING THE SAME  
A drain pan liner usable with a drain pan is provided. The drain pan liner includes a plurality of elongated foam lining portions, an adhesive film disposed on a rear portion of each of the foam...
US20060010898 System for refrigerant charging with constant volume tank  
A refrigerant charging system for charging a refrigeration system with refrigerant includes a refrigerant source, a storage vessel, input and output lines, and a device for detecting mass of...
US20130061612 REFRIGERANT STORAGE IN SECONDARY LOOP REFRIGERATION SYSTEMS  
A process and system for storing and recovering a secondary refrigerant such as carbon dioxide in a secondary loop refrigeration system after a shutdown of the primary refrigeration system using...
US20100223937 Heat Exchanger Coupling Blocking Plug  
A blocking plug fitting that does not require brazing is described that fits in matching correspondence with an existing fitting arrangement used to couple refrigerant tubing to a heat exchanger....
US20110023503 PERFORMANCE DETECTION METHOD  
Proposed is a performance detection method for use in detection of performance characteristics of air conditioning equipment. The method includes, for the standard operational status for the air...
US20130247597 COMBINATIONS OF E-1,3,3,3-TETRAFLUOROPROPENE AND AT LEAST ONE TETRAFLUOROETHANE AND THEIR USE FOR HEATING  
Disclosed herein is a method for producing heating comprising condensing a vapor working fluid comprising (a) E-CF3CH═CHF and (b) at least one tetrafluoroethane of the formula C2H2F4, in a...
US20140033741 AIR CONDITIONER  
An air conditioner is provided. The air conditioner may include a compressor, a condenser, an evaporator, a receiver storing a portion of a refrigerant passing through the condenser, an...
US20150233621 Refrigerant Recovery Cooling Blanket  
The present invention provides a cooling blanket configured to be wrapped around a recovery tank during refrigerant recovery to prevent overheating of the recovery tank and a method for the same....
US20130174588 REFRIGERATION MONITORING SYSTEM AND METHOD  
A system is provided and may include a refrigeration circuit having a condenser, a first sensor producing a signal indicative of a detected condenser temperature of the condenser, and processing...
US20130145778 HEAT TRANSFER COMPOSITIONS AND METHODS  
Compositions, methods and systems which comprise or utilize a multi-component mixture comprising: (a) HFC-32; (b) HFC-125; (c) HFO-1234yf and/or HFO-1234ze; (d) HFC-134a. In certain non-limiting...
US20130340447 CONVERTIBLE REFRIGERANT RECOVERY, RECYCLE, AND RECHARGE SYSTEM  
A convertible refrigerant recovery, recycle, and recharge unit, comprising a control valve array, a vacuum pump, an oil separator, an oil-less compressor, and one or more storage tanks. The vacuum...
US20140230465 METHOD FOR SELECTING LUBRICANTS FOR HEAT PUMPS  
Provided is a method for selecting a lubricant and a refrigerant for use in a vapor-compression refrigeration device such that the combination of the lubricant and refrigerant produces a fluid...
US20130067938 METHOD FOR SELECTING LUBRICANTS FOR HEAT PUMPS  
Provided is a method for selecting a lubricant and a refrigerant for use in a vapor-compression refrigeration device such that the combination of the lubricant and refrigerant produces a fluid...
US20050247069 Air conditioning system charging apparatus  
An air conditioning system charging apparatus. In a described embodiment, an air conditioning system charging apparatus includes a flexible conduit, a quick connect connector attached to one end...
US20090293511 APPLIANCE FEATURE MODULE ENABLED BY ENERGY OR MATERIALS SOURCED FROM THE HOST APPLIANCE  
A modular utility supply unit that includes a utility supply module housing having removable engageability to a surface of an appliance. Also included is at least one refillable reservoir capable...
US20100307171 Cooling Infrastructure Leveraging a Combination of Free and Solar Cooling  
Energy-efficient data center cooling techniques that utilize free cooling and/or solar cooling are provided. In one aspect, a cooling system is provided including a cooling tower; one or more...
US20130219929 USE OF REFRIGERANTS COMPRISING E-1,3,3,3-TETRAFLUOROPROPENE AND AT LEAST ONE TETRAFLUOROETHANE FOR COOLING  
Disclosed herein is a method for producing cooling comprising evaporating a liquid refrigerant comprising (a) E-CF3CH═CHF and (b) at least one tetrafluoroethane of the formula C2H2F4; provided...
US20150152307 LOW-TEMPERATURE AND AVERAGE-TEMPERATURE REFRIGERATION  
Binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, as a heat transfer fluid in compression, low-temperature and average temperature refrigeration systems, with exchangers...
US20140216073 Method Of Charging A Coolant  
To ensure precise charging of a coolant into a cooling system (6) via a hose (4), temperature sensors (Ts and Te) and pressure sensors (Ps and Pe) are mounted at the inlet side and/or outlet side...

Matches 1 - 50 out of 296 1 2 3 4 5 6 >