CT-600-2 77
No. Function Description Related
alarms,
warnings
(see 14.1)
Related
param.
(see 13.1)
Related
timers
(see 13.2)
compressor is ready for operation,
external start permission available and
capacity requirement above minimum
limit for start.
3.13 KDC and eq.
Valves
Control of 3 solenoid valves: two for
KDC valve and one for bypass. All
energized when at least one
compressor is running, else all de-
energized.
3.14 Oil separator
heaters
Heaters in oil separator are turned on,
when oil separator temperature is below
on-level and no warning for low oil level.
They are turned off, when the
temperature is above the off-level or
there is a warning for low oil level.
18 86, 87
3.15 Oil separator oil
return valve
Coalescer oil return valve is opened,
when at least one compressor is
running, no compresser is starting and
oil level in coalescer is high. Valve is
open for minimum duration defined by
timer.
15
3.16 Booster oil
pump
For booster systems only. Oil pump is
started, when at least one compressor
is running, booster oil pump is enabled
and pressure difference is below pump-
on-level. The pump is stopped when
pressure difference is above the pump-
off-level, when no compressor is
running or the booster oil pump is
disabled.
74-76
3.17 Compressor eco
valve enable
Compressor eco-valve control is
enabled, when the optional BITZER
economizer system is active and enable
or the remote eco system is enabled
through the external digital input. For
80-84, 91-
96
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