Frick Quantum LX Compressor control panel: Capacity Control Screen

[Josip]

Hi, Screw_geek

....
Setpoint : 20 PSIG (just example numbers used in manual)

HIGH LOW
Proportional Band: 15 PSIG 15 PSIG
Dead Band : 0.5 PSIG 0.5 PSIG
Cycle Time : 3 SEC 3 SEC

Channel: Suction Pressure

According to the description of each field and the numbers they used, i am a little confused here. Do these numbers mean as follows:

if my sp is at 20 PSI then the dead band high would be set at 20+0.5 = 20.5 PSIG and the Proportional band high would be set at 20.5+15 = 35.5 PSIG (set above the dead band high). Also if lets say my suction pressure actual reading is 40 PSI (assume) which would be beyond my proportional band high value(35.5) , i have to energize my load solenoid all the time. Also what does that cyle time mean?

Thanks in advance

According to your values:

SP=20 psig
NZ= 0.5 psig 0.5 psig
PB= 15 psig 15 psig
Cycle time 3 sec 3 sec

Seems you can set you NZ as you like around SP and the same is for PB. Time to engage solenoids you can also change up maybe from 0.5 sec up to 3 sec both for up and down.
You must play with those values but you can try

SP=20
NZ= 0.5 psig 0.5 psig
PB= 5 psig 5 psig
time down 3 sec time up 2 sec

Once you set your NZ and PB it will come along with any SP you set.

Please take a look at attached file:

Best regards, Josip