version 4.7.2 – July 10th, 2022 Firmware version V2.1.7 and higher
EXXFIRE Installation and Service Manual 100
Service Intervals
The EXXFIRE® 750CNF/1500CNF/2250CNF system has the capability to set service interval for
maintenance (e.g. replacement of the air filter) and generate a fault condition when the service
interval expires. The default service interval is 1 year.
When the service interval expires the system will generate a fault condition and show fault code FF
in the 4-digit display. Call your installer/distributor to have the system serviced.
The fault can be temporarily suppressed by following the following procedure:
- Put the key switch in SERVICE position
- Press the UP or DOWN button on the UI panel until fault code FF is shown
- push the RESET button
The fault will then disappear and a new fault will be generated after one month time, unless the
system has been serviced in the meantime and the service interval has been updated.
When the system is serviced the service interval can be set to one year from now by following the
following procedure:
- Put the key switch in SERVICE position
- Reset the system (see section 7.2)
- Keep the DISABLE button pressed for some seconds during system start-up
- The system will acknowledge setting of the service interval by blinking the green POWER
LED on the UI panel multiple times.
This procedure must be done on each system in case of connected systems.
System fault
The EXXFIRE® 750CNF/1500CNF/2250CNF system has integrated code execution monitoring
When a code execution fault is detected, the system will reset and show fault code 00 in the 4-digit
display, as well as turn on the system fault LED.
The system fault can be reset by the following procedure (this can only be done on the master):
- Put the key switch in SERVICE position
- Press the UP or DOWN button on the UI panel until fault code 00 shown
- push the RESET button
The fault will disappear on the 4-digit display and the system fault LED will be turned off.
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