Bitzer HS.8851

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.