High and low pressure cut off

[Seng]

In R410a system, what is considered to be a good cut in and cut off for the high and the low pressure switch?

[Lc_shi]

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
LC

[Seng]

It is an air-cooled condenser for a commercial split system. I just need the normal range to start. Thanks for the help.

[Mushtaq Kumbay]

check the condensing temperature on your 410a gauges and set it at about 20c degrees above the condensing temp

[Peter_1]

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.