CE MANUAL
C 0206101
The keyboard of the CVM 20 electronic control unit is represented in FIG. 1 on the last page of this manual.
1) PROCEDURE FOR SWITCHING ON AND OFF
SWITCHING ON THE UNIT
ATTENTION: make sure that the unit has been live tor at least 8 hours before switching it on
(to heat the oil in the compressor casing and separate any coolant present)
• POWER LED (A) on
• REMOTE OFF LED (C) off
• press key 1 - LED on
A TTENTION : a lamp-test is performed automatically when the unit is switched on.
SWITCHING ON SINGLE COMPRESSOR
• press the key of the compressor to be switched on (Cl-C2) - SEL LED on
ATTENTION:
-
the compressor may delay starting due to:
• timers set via the parameters
• no demand trom the thermoregulator
• presence of an alarm
SWITCHING OFF SINGLE COMPRESSOR
• press the key of the compressor to be switched off
(CI-C2)
- SEL LED off
ATTENTION: only use this
function in
an emergency
(stopping
with
no pump-down could
cause damage to the compressor that is
not
covered by
guarantee)
SWITCHING OFF THE UNIT
• press key 1 -
SEL
LED off
2) COMPRESSOR OPERATION CONTROL
STATUS LED
•
SEL
off and
ON
off= compressor not selected
•
SEL
on and
ON
off= compressor selected, but delayed
•
SEL
on and
ON
on = compressor operating
•
SEL
flashing and
ON
off = compressor in alarm mode
3) TEMPERATURE READINGS
EVAPORATOR INLET TEMPERATURE READINGS
• press key
4
- IN LED on
• read the value on the display
EVAPORATOR
OUTLET TEMPERATURE
READINGS
• press key
4
- OUT LED on
• read the value on the display
il'
CLIMAVENETA
1
