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26-06-2024, 11:52 AM

stryped started a thread Adding dye using pressure from high side in Refrigerants

Been looking online at different floresent dyes for hvac. Some look like they connect to the yellow center hose on a guage mannifold. The center hose...

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0 replies | 25 view(s)
26-06-2024, 11:45 AM

stryped replied to a thread Refrigerant recovery in Refrigerants

Could a person use a refrigerator compressor to transfer the refrigerant to a recovery tank? How would a person then transfer it back from the...

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3 replies | 93 view(s)
26-06-2024, 09:45 AM

cricri replied to a thread blue ammonia in NH3

chiller, small amount of ammonia, it'll be cheeper to drain the ammonia, fill in a new charge and see what append...

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5 replies | 191 view(s)
26-06-2024, 06:26 AM

mizar replied to a thread blue ammonia in NH3

hello cricri we have purged brand new reflo 68A oil on the unit the unit is a old grasso 312E chiller with flywhell mass on both motor side...

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5 replies | 191 view(s)
26-06-2024, 12:17 AM

kay86 started a thread Small dent on evaporator coil in Fundamentals

Hello everyone, I was making this coiled evaporator using 10mm x 0.75 copper tubing when I've realized that the tube had some dents along the length...

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0 replies | 45 view(s)
26-06-2024, 12:00 AM

kay86 replied to a thread Hygroscopic POE oil in Fundamentals

Hi Orsus, thanks a lot for your explaination! Cheers, Kay

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8 replies | 1620 view(s)
25-06-2024, 09:57 PM

cricri replied to a thread blue ammonia in NH3

Mizar, If the unit ran some hours you can try an oil analysis. I have seen mistakes with oils pourred in, motor/air compressor oils contain...

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5 replies | 191 view(s)
25-06-2024, 08:59 PM

Grizzly replied to a thread Refrigerant recovery in Refrigerants

Hi stryped You do indeed need to vacuum the Cylinder being used to recover / receive the refrigerant. To ensure no air is present. However to...

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3 replies | 93 view(s)
25-06-2024, 07:30 PM

mbc replied to a thread Refrigerant recovery in Refrigerants

Hi It is better to vacuum the tank and it makes easy to remove refrigerant. Air doesn't mix with refrigerant

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3 replies | 93 view(s)