CELLmatic 1502 – GSV/GSF
Issue: 2.1
User Manual
08.02.2004
Page 26 of 51
Thy
-
tronic
I/S – Bjørnevej 8c – DK 7700 Thisted – Tel.: +45 97982344 – Email.: [email protected]
SET POINTS
Set point K
01-01-94 17:25:35
SETPOINT/SETP I-L/SETP. K/
F6 CLA :
F5 NEW (F5) :Filterdiff alarm 1.8 Bar
F4 NEW (F4) :Filterdiff cut 2.5 Bar
F3 NEW (F3) :Oildiff. alarm 2.0 Bar
F2 NEW (F2) :Oildiff. cutout 1.0 Bar
F1 STOP : STOP
F5:
FILTER DIFFERENCE ALARM
If the pressure drop over the oil filter is exceeding this value an alarm will be released after 30 seconds,
and the message "ALARM FILTERDIF." will appear at the top left-hand corner of the display.
F4:
FILTER DIFFERENCE CUTOUT
If the unit is equipped with an extra pressure transmitter that measures oil pressure (POFILT)
immediately ahead of the filter, the filter pressure drop with all pump types is calculated as Filter
pressure drop = P
OFILT
- P
OIL
Otherwise the filter pressure drop is calculated as follows:
Prelube pump
Pressure drop over filter = P
DISCH
- P
OI
L, where PDISC is the Discharge pressure, and POIL is the oil
pressure measured in the manifold.
Cycling or full lube oil pump
When
(P
DISCH
. - P
SUCT
) < 4.5 bar: Pressure drop over filter = (P
DISCH
. - P
OI
L) + 1
When
(P
DISCH
. - P
SUCT
) >= 4.5 bar: Pressure drop over filter = (P
DISCH
. - P
OI
L)
F3:
OIL DIFF. PRESSURE ALARM
If the oil differential pressure goes below this pressure an alarm will be reported, and "ALARM
OILDIFF." will appear at the top left-hand corner of the display. The oil differential pressure is
calculated as:
OIL DIFF.PRESSURE = [POIL PRESSURE - (1.2 x PSUCTION PR 1)] bar
The alarm has a delay of 5 minutes during the first 12 minutes after start, after this the delay will be 2
minutes.
F2:
OIL DIFF. PRESSURE CUTOUT
If the oil differential pressure goes below this pressure the compressor is stopped, and "CUTOUT
OILDIFF." will appear in the display. This stop has a delay of 10 minutes during the first 12 minutes
after start, then the delay will be 3 minutes.
