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Type: Posts; User: pyramidhvacr
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10-14-2012, 09:56 PM
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Under Charged or wrong TXV
If coil is 9000 btu use a 3/4 hp txv if 1 hp ok but has to close down more. Never open more than 1/4 turn from closed to start. Charge system At 35/175 under charged or txv flooding. No high Psi 80...
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10-12-2012, 12:09 AM
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If headmaster is bypassing hot gas in the liquid...
If headmaster is bypassing hot gas in the liquid line both and compressor be very hot. Under charge system get the head psi up. What freon??? R404 need 265psi . 175psi headmaster is open pumping hot...
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10-11-2012, 11:45 PM
Thread: Delfield freezer
by pyramidhvacr- Replies
- 44
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- 2,180
system low on charge. And restart back up too...
system low on charge. And restart back up too quickly. Supper heat to high to cool the compressor down. Raise head psi to 265. (R404A) supper heat will be close to 20-30deg / under 20deg at compress...
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10-11-2012, 11:18 PM
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you can make one your self 3/16 copper. Or 1/8 in...
you can make one your self 3/16 copper. Or 1/8 in I used 3/16in. Piston holder from old coil 4 or 6 feeder remove them 3 in. 7/8 copper. 24 in on each 3/16 feeder . Cut out header. Add a 1 piston at...
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09-23-2012, 01:21 PM
Thread: choice home warranty
by pyramidhvacr- Replies
- 10
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Look Like Give away work and time
They call to set you up and email ticket. Have home owner call you. Did is there JOB. I was lucky only call about a water leak. A never do Plumbing but slow this day and close to site. Very fix 15...
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07-01-2011, 02:12 AM
Thread: 404a walkin freezer
by pyramidhvacr- Replies
- 19
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- 1,954
:gah::gah: Not so TXV is not made to pass liquid...
:gah::gah:
Not so TXV is not made to pass liquid refrigerant through the equalizer tube and bypass the coil now you talking about a flooding TXV. note (equalizer tube). If the head is bad this will... -
07-01-2011, 01:47 AM
Thread: 404a walkin freezer
by pyramidhvacr- Replies
- 19
- Views
- 1,954
R404A FREEZER CHARGING
First things clean the condenser with
Foaminator™
Premium Alkaline Based / Cleans Thick Coils
Best on the market/ turn sight glass at angle not flat hoz. If clear pumpdown to ck if full. It will... -
02-15-2011, 10:08 PM
Thread: 410A v.s. R22
by pyramidhvacr- Replies
- 22
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- 9,893
A Comparison of an R22 and an R410A Air Conditioner Operating at High Ambient Temper
http://fire.nist.gov/bfrlpubs/build02/PDF/b02186.pdf
Read The True Fact's
When
outdoor temperature increased, the R410A system performance degraded more than the R22 system performance. ... -
02-10-2011, 12:05 AM
Thread: 410A v.s. R22
by pyramidhvacr- Replies
- 22
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- 9,893
When Out Door Temp High 410a performance degraded
http://fire.nist.gov/bfrlpubs/build02/PDF/b02186.pdf
GOV TEST
R22 VS 410A PDF
CONCLUSIONS
R22 and R410A split air-conditioning systems were tested and compared as outdoor temperature ranged... -
02-09-2011, 11:54 PM
Thread: R22 VS 410A PDF by nist.gov
by pyramidhvacr- Replies
- 1
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- 375
R22 VS 410A PDF by nist.gov
http://fire.nist.gov/bfrlpubs/build02/PDF/b02186.pdf
They The Government Lies, Again
CONCLUSIONS:tank:
R22 and R410A split air-conditioning systems were tested and compared as outdoor... -
02-09-2011, 11:28 PM
Thread: Heat Pump Charging in the Winter
by pyramidhvacr- Replies
- 15
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- 5,419
Weigh it in ??? no testing supper htg Quess you...
Weigh it in ??? no testing supper htg Quess you got to much time on your hands. TIME IS MONEY. AT $85 hr and $55.00 lbs R22 . Weight by chart is a quessing game. Testing both SH and temp on hot gas...
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02-09-2011, 10:44 PM
Thread: Heat Pump Charging in the Winter
by pyramidhvacr- Replies
- 15
- Views
- 5,419
Charging HP in Winter to hottest point by supper heat
Check the supper heat probe compressor side or txv, I place 2nd probe on hot gas highest heat @ 35 deg supper heat. Over 35 deg temp starts to fall and @ 20deg min supper heat mfg compressor states...
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