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Thread: High and low pressure cut off
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07-02-2006, 10:05 PM #1
Seng GuestHigh and low pressure cut off
In R410a system, what is considered to be a good cut in and cut off for the high and the low pressure switch?
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08-02-2006, 01:05 AM #2
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Re: High and low pressure cut off
what type system,air-cooled or water cooled,heat pump operation? the low and high pressure should consider the compressor permitted work range and system performance requierment. would u pls give some background?
rgds
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08-02-2006, 03:35 PM #3
Seng Guest
Re: High and low pressure cut off
It is an air-cooled condenser for a commercial split system. I just need the normal range to start. Thanks for the help.
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08-02-2006, 03:54 PM #4
Mushtaq Kumbay Guest
Re: High and low pressure cut off
check the condensing temperature on your 410a gauges and set it at about 20c degrees above the condensing temp
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08-02-2006, 06:27 PM #5
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Re: High and low pressure cut off
Hp is related to the max allowable pressure of our compressor
If temperature can rise to 32° ambient with a DT of 14 K, then 28 bar and 9 bar DP.
LP 7 bar cut in and 2.5 DP if it only needs to cool in summer.It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
