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Thread: Equalization problem
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12-01-2010, 02:30 AM #1
Equalization problem
Friend had a question, working on a home built liquid chiller using a TXV.
Has an external equalizer, but seems to not be equalizing enough after shut down to allow a reboot with plenty of time.
Any thoughts?
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12-01-2010, 02:39 AM #2
Re: Equalization problem
I presume you mean "external equaliser" is on TXV, if so, not there to equalise the system, Add anti-cycle timer or change starting method (i bet you are using a PSC start) or add a unload solenoid valve (between suction and discharge)
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12-01-2010, 03:26 AM #3
Re: Equalization problem
Ah yes my bad, does a system like this actually require a solenoid to unload?
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12-01-2010, 03:46 AM #4
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12-01-2010, 04:03 AM #5
Re: Equalization problem
What info would help?
1hp LG Rotary
2.3kw Condenser coil with fan
30 plate HX
Danfoss TES2 with 01 Orifice
R404a
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12-01-2010, 04:29 AM #6
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12-01-2010, 05:37 AM #7
Re: Equalization problem
PSC, so yeah just a run cap.
And single phase.
But shouldnt the system be equalizing completely when its off?
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12-01-2010, 07:42 AM #8
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12-01-2010, 06:08 PM #9
Re: Equalization problem
Is there any way to tell which kind of TXV allows this and which don't? I've never seen this, but I normally only work on systems with EEV and captubes.
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