System information

C0240111-06-07-GB
28
Mask Description Para n°
Subcooling
Enabled N
Enables subcooling.
This function is only enabled in chillers with recovery mode.
05.16
Subcooling
Adjustment start
delay 010 s
Relay delay 005 s
Sets the delay before subcooling adjustment commences and the delay in the subcooling
relay.
05.17
05.18
Subcooling
Upper set 06.0 °C
Lower set 04.0 °C
Sets the upper and lower sub cooling setpoint. 05.19
05.20
High temp. pressure
switch control
Enabled: N
Enables setting of the pressure switch control of high temperatures by separating active
circuit power
05.21
High temp. pressure
switch control
Setpoint: 23.5 bar
Diff: 02.0 bar
Enables the setpoint and differential for the pressure switch control of high temperatures 05.22
05.23
Pumpdown
Disabled
Enables or disables pumpdown.
Selects the type of pumpdown to perform, pumpdown during
shutdown or cyclical pumpdown or both.
05.24
Pumpdown
Setpoint 02.5bar
Max. time 03s
Sets end pumpdown setpoint and pumpdown timeout.
The pumpdown procedure is interrupted …
- when low pressure falls below the setpoint (if there are transducers on the low pressure
section)
- when the low pressure switch trips (if there are no transducers)
- after the timeout (if the procedure is not interrupted by pressure)
05.25
05.26
Cyclical pumpdown
Cycle time 030min
Sets the cyclical pumpdown time. A pumpdown is performed each time the set time elapses.
The time is reset every time a mode change occurs.
05.27
Pumpdown
Chiller S Heatpump N
Ch+Rec N Win rec N
Sum rec N => 01
Sets the modes in which pumpdown is performed (both cyclical and shutdown).
Depending on the type of unit, a smaller or larger number of available modes appear.
Pumpdown can be selected in the chiller mode and not in the chiller plus recovery mode, for
example.
05.28
All-in-one unit
valve override
Enabled: Y
Sets valve override for all-in-one units. 05.29
Compressor
← ↓
Access mask to compressor submenu.
Press "Up" or "Down" to scroll the other masks and
"Esc" to return to the submenu.
Min compressor stop
time 0120 s
Minimum time a compressor must stay off after being switched off. (Only visible in the
proportional step adjustment mode)
09.02
Min. del. btw starts
diff. compr. 0010 s
Min. del. btw starts
same compr. 0360 s
“Antipeak” time to prevent overcurrents at start-up due to simultaneous demand from more
than one compressor.
Delay which limits the number of compressor start-ups per hour. (Only visible in the
proportional step adjustment mode)
09.03
09.04
Max. compr. starts
per hour 10
Min. compr. start
time 150 s
Maximum permitted number of compressor starts per hour. Minimum switch-on time of a
compressor. (Only visible in the quick mind and modulating adjustment modes of screw
compressors)
09.05
09.06
Force at low ext.t.
Enable N
Setpoint -05.0 °C
Diff. 01.0 °C
Only for screw compressors.
Enables 100% screw compressor forcing of in the winter mode with low external
temperatures.
09.07
09.08
09.09
Oil control type
Direct
Max time : 1200s
Override T: 120s
Selects the screw compressor oil level control mode: None, Direct, Indirect and Direct +
Indirect.
09.58
09.11
09.12
Width of
dead area:
015 %
Sets the percentage with respect to the dead area and around the setpoint in which the
compressor is not modulated. (only for modulating screw compressors)
09.59
Power incr. impulse:
Period: 010 s
Min. dur.: 00.3 s
Max. dur.: 02.0 s
Sets the period and duration of the power increase impulse.
(Only for modulating adjustment of screw compressors)
09.14
09.15
09.16
Power decr. impulse:
Period: 010 s
Min. dur.: 00.5 s
Max. dur.: 03.0 s
Sets the period and duration of the power decrease impulse.
(Only for modulating adjustment of screw compressors)
09.17
09.18
09.19