CELLmatic 1502 – GSV/GSF
Issue: 2.1
User Manual
08.02.2004
Page 42 of 51
Thy
-
tronic
I/S – Bjørnevej 8c – DK 7700 Thisted – Tel.: +45 97982344 – Email.: [email protected]
I/O PICTURES
03-06-96 13:48:15
I/O/J1-J7-J8/OUT 0-11/OUT 4-11/OUT 8-11/
F6 :
F5 OUT 11 :+0-Y5 OFF
F4 OUT 10 :+0-Y7 OFF
F3 OUT 9 :Oil Equlising
F2 OUT 8 :Power Kit
F1 STOP :
OUT 11 SOLENOID VALVE IN OILLINE
On units where a check valve is located between compressor and oil separator instead of on the
compressor suction side, solenoid valves must be installed in diverse oil lines from the oil separator to
the compressor. The solenoid valves must be connected to the output that closes them when the
compressor stands still. At the same moment as a start signal is given to the compressor, the output
goes ON and the solenoid valves open.
OUT 10 SOLENOID VALVE IN OIL LINE TO SB2
In certain compressor units a solenoid valve is located with a pressure regulating valve in the oil line
to SB2. The purpose of this arrangement is to ensure that the correct oil pressure is applied to the oil
pistons in the compressor in order to relieve the axial bearings. The solenoid valve must be connected
to this output so that it goes ON when CPOS > 70%, that it goes OFF again when CPOS < 65%, and
also goes off during standstill.
OUT 9 OIL EQUALIZING
If the refrigerating plant is built up by more compressor units (with an oil separator each) running
parallel operation it may happen that the oil is gradually moved into one of the oil separators. By
mounting a pipe with a solenoid valve between the oil separator of one of the compressors and the
suction line of the second, and vice versa it is possible to make oil equalizing. If a low oil level is
registered for 30 seconds the solenoid valve between the suction line of the compressor concerned and
the oil separator of the second oil separator will open. The oil separator will now be filled up with oil
until the level switch is registering normal oil level again. Note: Fill up for 30 seconds.
When the solenoid valve is activated this output will be "ON".
OUT 8 POWER KIT
When the compressor stops the output will be "ON" for 15 seconds in case the NC-valve under
POWER KIT in the SETUP/MENU 2 has been selected. However, if the NO-valve has been selected
the output will be "OFF" for 15 seconds after the compressor has stopped.
