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Power-User

Join Date: Aug 2013
Location: OHIO, tri-State design and installation, and travel nationally and consults also are international
Posts: 274

Life Expectancy Recips and Scrolls and Chillers/Geothermal?

09/21/2013 7:20 AM

WHO needs repaired in the industry?

What if more focus was on the 'Repair' of a larger percentage of non-note-taking installers and heat-exchanger designers and applications engineering management?

Perhaps you read the -?is there any- 'listing life expectancy of recips'...?

I believe since so many compressors seem have taken the blame for premature failures more notes on those in overseeing techs and start ups should be demanded.

Of 27 dealers in 21 counties - assistance performed in from 1981-1983 and another group of mechanicals - 1994-2011 in design/installation to to training for start-up engineering-management ( distributor-rep assistance ) had less than 3% compressor problems to-date (and ambiguous beliefs that it was even the compressor failure) due to any OEM of the tin-canned-compressors themselves, since 1979 manufacturing dates.

Recip.Compressors flooded with a well-system light sand and water have been cleaned and still running well - 6 years later- to date.

Energy Star 2014 is very close to 50% oversizing heat exchangers from 1970's designs in connection with compressors to have met the new OEM requirements.

http://www.energystar.gov/index.cfm?c=most_efficient.me_geothermal_heat_pumps

Responsibly , but Energy Star as listed is only considering 15 year life for some "equal" heat pump and repair things for I suppose mostly scrolls and VFD variable speed scroll compressors.

21 year old systems of scrolls and reciprocating canned compressors are still running well in such as the dual priority systems of the early 2000's of HVAC and instant Priority on-demand Hot Water heating with instant Priority Radiant Heating - all four functions with related extreme heating conditions within water-source geothermal heat pumps, and in schools, yielding the lowest cost of operation per sq ft per school year - then and now still by over 25% better including related heat-reclaiming , heat recovery by OEM (in cooling , making ALL the Hot Water as freely as possible).

Some 190-degree f r22 discharge refrigerant temps can be seen at old oil forced air retrofits of heating only air to water 'chillers' on well water as follows:

80+deg.f household air for an elderly individual

1/4 hp belt drive oil furnace (not using any oil)

return-air side, retrofitted heat-only GEOThermal 'chiller' acting on well water

46,000 btuh recip Bristol 1980 compressor

4 gpm well water is 'chilled' EW 52f

Discharge well over 310 psig head pressure

grey oil by ten years ago

still heating at over 70% savings when installed, now over an 80% savings on the dollar -------------- NO 'chiller' GEOTHERMAL heating-only-unit repair.

(outlasted the Johnson-Penn water flow controller set at suction 57 psig, replaced one time)

on/off contactor on a 2h 1 c thermostat. Then added on the old farmhouse that regularly used 800 to 900 gallons of oil @ $ 2900.oo installed. Now saving about that every year.

WHO needs repaired in the industry, is my OP Q ?

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Power-User

Join Date: Aug 2013
Location: OHIO, tri-State design and installation, and travel nationally and consults also are international
Posts: 274
#1

Re: Life expectancy recips and scrolls and chllers/geothermal?

09/21/2013 7:45 AM

that 190 degree discharge is the hot gas line temp, over the near 140 deg f at the gauge...

and I first over-saw and started a 4 function dual priority in 2003 of the early 1990's designs from Hydro-Temp (AR), now over 20 years, that they have produced... not losing compressors operating in OEM listed set up margins.

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