Danfoss AK-PC 351 User Manual page 10

Compressor mode
Po sensor max range
Po sensor min range
Lead comp. size
Comp. size
VSD Min. speed
VSD Start speed
VSD Max speed
PWM period time
PWM Min cycle
PWM start cycle
10
Set the type of compressor to be used for regulation:
None;
1 single, 2 single, 3 single, 4 single
1 speed, 2 speed, 3 speed, 4 speed,
1 digital, 2 digital, 3 digital
1 stream, 2 stream, 3 stream
1x1 unload, 1x2 unload, 1x3 unload, 2x1 unload
Application
Single step 1 single
2 single
3 single
4 single
Speed on the 1 speed
first. Then
2 speed
single step
3 speed
4 speed
Digital scroll 1 digital
(stream) on
2 digital
the first. Then
single step
3 digital
Compressors 1x1 unload
with unloader
1x2 unload
1x3 unload
2x1 unload
Pressure transmitter working range
Set pressure transmitters upper value. Set in relative pressure.
Pressure transmitter working range
Set pressure transmitters lower value.. Set in relative pressure.
Set the nominal compressor capacity for the first compressor (it is defined under
"Compressor mode")
That is, the capacity of either a "Digital scroll", "Stream", "Variable speed"
Set the nominal compressor capacity of the other compressors
For single-step only: All are of the same size, including the first.
For unloader all: All are of the same size, including the first.
For speed
Min. speed for speed regulated compressor
For speed
Minimum speed at which the compressor will start (must be set to a higher value than
"VSD Min. speed")
For speed
Highest permitted speed for compressor
For "Scroll" and "Stream"
Set the period time for the bypass valve (on time + off time)
For scroll
Minimum capacity in the time period (without a minimum capacity the compressor
will not be cooled)
For scroll
Start capacity: the compressor will only start when the capacity requirement reaches
the value
User Guide RS8GZ302 © Danfoss 2015-06
DO-demand /
AO-demand
Fac:
2 digital
Min: -1 bar
Max: 159 bar
Fac: 12 bar
Min: -1 bar
Max: 159 bar
Fac: -1 bar
Min: 1 kW
Max: 100 kW
Fac: 1 kW
Min: 1 kW
Max: 100 kW
Fac: 1 kW
Min: 10 Hz
Max: 60 Hz
Fac: 30 Hz
Min: 20 Hz
Max: 60 Hz
Fac: 45 Hz
Min: 40 Hz
Max: 120 Hz
Fac: 60 Hz
Min: 10 s
Max: 40 s
Fac: 20 s
Min: 10%
Max: 50%
Fac: 10%
Min: 10%
Max: 60%
Fac: 30%
AK-PC 351