About 1,530,131 results (4,063 milliseconds)

US5054294A - Compressor discharge temperature control for a ...

https://patents.google.com/patent/US5054294A/en
Further, at high temperatures the lubricating oil tends to break down and that, in turn, will cause excessive wear and possible failure of various components ...

US7726582B2 - Method and apparatus for converting constant ...

https://patents.google.com/patent/US7726582B2/en
The invention consists of a constant-volume HVAC system, wireless discharge air temperature ... cause the discharge air temperature to reach the high temperature ...

US5248244A - Scroll compressor with a thermally responsive ...

https://patents.google.com/patent/US5248244A/en
The high spot takes all the load (normal force) and causes high local friction and resultant local heat. ... Reverse phase and high discharge temperature ...

US5586445A - Low refrigerant charge detection using a combined ...

https://patents.google.com/patent/US5586445A/en
The lack of oil combined with high temperatures eventually causes ... Thus, extremely high ambient temperatures indicate a high expected discharge temperature ...

HELP: Heat pump high pressures in heat mode.

https://groups.google.com/g/alt.hvac/c/kh6N5ZfKsYk
... caused lower discharge pressure in heat mode, not higher). System is ... digital scale or dump? -- HVAC Advice, Pictures, Links http://www.geocities ...

US5290154A - Scroll compressor reverse phase and high discharge ...

https://patents.google.com/patent/US5290154A/en
... abnormal compressor operating conditions, including high discharge temperature, it will not deform. ... HVAC system remote monitoring and diagnosis.

US6427465B1 - Compressor control system and method - Google ...

https://patents.google.com/patent/US6427465B1/en
... AC vent discharge temperature swing during a ... Low refrigerant charges cause high compressor discharge temperatures which can damage the compressor.

EP2198212A1 - Suction superheat control based on refrigerant ...

https://patents.google.com/patent/EP2198212A1/en
Also, at some operating conditions, higher suction superheat values lead to elevated discharge ... discharge temperature for a given suction and discharge ...

US20150330684A1 - Liquid line charge compensator - Google ...

https://patents.google.com/patent/US20150330684A1/en
When under full load conditions, unnecessary refrigerant is present in the HVAC system. The additional refrigerant charge can cause high discharge pressure ...

US9822989B2 - Controlling air temperatures of HVAC units ...

https://patents.google.com/patent/US9822989B2/en
... temperature or discharge air temperature are provided. HVAC units that are controlled by the ... high controller gain for the i,j pair, which can cause problems.

EP0706682B1 - Method and system for controlling an automotive ...

https://patents.google.com/patent/EP0706682B1/en
... Temperature is high, then the blower tends toward a high speed; and ... HVAC system to prevent the discharge of air within a predetermined temperature range.

WO2013101701A1 - Discharge pressure calculation from torque in ...

https://patents.google.com/patent/WO2013101701A1/en
Low charge also causes an increase in refrigerant temperature entering the ... cooling system, including a heat pump, HVAC, and chiller systems. In a ...

WO1995001593A1 - Method and system for controlling an ...

https://patents.google.com/patent/WO1995001593A1/en
... HVAC System To Prevent The Discharge Of Air Within A Predetermined Temperature Range". ... If Incar-Set is high and Ambient Temperature is high, then mode tends ...

EP0604358A1 - A scroll compressor with a thermally responsive ...

https://patents.google.com/patent/EP0604358A1/en
The high spot takes all the load (normal force) and causes high local friction and resultant local heat. ... Reverse phase and high discharge temperature ...

US6118099A - Controller for heating in reversible air conditioning ...

https://patents.google.com/patent/US6118099A/en
The increased refrigerant discharge temperature results in an increased condenser temperature ... temperature causes a gradual increase in the compressor ...

MARINE ENGINEERING KNOWLEDGE BY RAJAN - AIR ...

https://sites.google.com/site/frerfuninstudy/air-conditioning-system-question-and-answer
This may cause the refrigeration compressor to overheat, with a high discharge pressure and normal condensing temperature. 2. There are possibilities of ...

CN102147144A - Control method for preventing overhigh exhaust ...

https://patents.google.com/patent/CN102147144A/en
... heat pump air conditioner excessive discharge temperature. Background ... CN104567106A 2015-04-29 High-temperature oil return method of variable frequency air ...

US7905098B2 - Compressor diagnostic and protection system and ...

https://patents.google.com/patent/US7905098B2/en
... high-side signal indicative of an operating condition of a high-pressure side of the refrigeration circuit, a discharge line temperature sensor providing a ...

compressor runs backwards??

https://groups.google.com/g/alt.hvac/c/pF1RPIf42Gk
But the low discharge temp is the odd one. As someone else suggested ... >>>>>>sitting on top of the strips, it caused extreme high temp on the ST.

R10 mixed with R22

https://groups.google.com/g/alt.hvac/c/91OA_i7ysIM
continues to clime, raising the utility bill higher and causing MORE heat, ... discharge temperatures, which we all know can break down oil and also stress