GB-22
Operating test
Operating test using CRC
• Carry out the operating test once the
system has been installed and tested for
leaks.
• Check
all
electrical
connections
(instructions and diagrams).
• Connect to the mains electricity and
switch on.
• Press
the
following
buttons
in
succession within 6 seconds: DOWN -
FAN - UP - FAN - MODE.
(N.B.: the CRC control must remain off.)
The display shows the symbol “Sr”.
When “operating test” mode is selected,
the unit begins operating as follows:
• The internal fan works on low speed.
• The system begins operating in cooling
mode at a fixed compressor frequency for
approximately 3 minutes.
• The system stops for 3 minutes.
• The system begins operating in heating
mode at a fixed compressor frequency for
approximately 3 minutes or until it reaches
an internal heat exchanger temperature of
40° C.
In “cooling or heating” mode, check the
following:
1. The difference between indoor ambient
temperature and indoor unit air outlet
temperature must be greater than 3° C.
2. The internal fan must work on low
speed.
3. The system must not signal any
malfunction.
If any of the above conditions is lacking,
check the system is installed properly.
• At the end of testing, press the button
to exit the test function.
Note:
After 30 minutes, if no other button is
pressed, the CRC automatically exits from
the operating test menu and reverts to
normal operation.
Operating test using the INFRARED
REMOTE KIT
• Carry out the operating test once the
system has been installed and tested for
leaks.
• Check
all
electrical
connections
(instructions and diagrams).
• Insert the batteries in the remote control
and leave it OFF.
• Connect to the mains electricity and
switch on.
• Press and hold the buttons
and
on
the remote control for more than
5 seconds.
The display will appear without symbols
and the time section will show the symbol
(Src = service test).
When “operating test” mode is selected,
the unit begins operating as follows:
• Green LED (P) and yellow LED (R) flash
every 2 seconds.
• The internal fan works on low speed.
• The system begins operating in cooling
mode at a fixed compressor frequency for
approximately 3 minutes.
• The system stops for 3 minutes.
• The system begins operating in heating
mode at a fixed compressor frequency for
approximately 3 minutes or until it reaches
an internal heat exchanger temperature of
40° C.
In “cooling or heating” mode, check the
following:
1. The difference between indoor ambient
temperature and indoor unit air outlet
temperature must be greater than 3° C.
40DQV_GB_install 5-07-2005 11:44 Pagina 22
