SB-110-4
39
CR
Y1
Y2
Y3
Y4
Start / Stop
CAP ⇑
CAP min. 50% ⇓
CAP ⇔
Tab. 3: Infinite capacity control (CR) in the range 100% .. 50%
CR
Y1
Y2
Y3
Y4
Start / Stop
CAP 25% ①
CAP 50%
CAP 75%
CAP 100%
Tab. 4: 4-step capacity control (CR)
CAP
Refrigerating capacity
CAP ⇑
Increase refrigerating capacity
CAP ⇓
Decrease refrigerating capacity
CAP ⇔
Constant refrigerating capacity
Solenoid valve de-energized
Solenoid valve energized
Solenoid valve pulsing
Solenoid valve intermittent
(10 s on / 10 s off)
①
25%-step only: at compressor start (start
unloading) and for compressor models in
the low-pressure range (see application
limits SP-110)
Tab. 5: Legends
Capacity steps 75%/50%/25% are nominal values. The
real residual capacities depend on the operating condi-
tions and on the compressor design. Data can be de-
termined using BITZER SOFTWARE.
Information
In part-load operation, application ranges are
limited! See Manual SP-110 or BITZER SOFT-
WARE.