ACF4
SP09 = 1 and DI Remote cooling/heating (DI type=2) not configured or
SP09 = 2 and no NTC probe configured as external air temperature (AI
type=35)
CF04 ≠ 0, but no condensing unit digital input (DI type=93…111)
configured.
CF04 ≠ 0, besides DI Cooling/Heating demand digital input (DI type=93),
also configured one DI as Cooling demand digital input (DI type=94) or
Heating demand digital input (DI type=95).
CF04 ≠ 0 and DI cooling/heating capacity request (DI type=96…111)
configured incongruently with the configuration of the
compressors/unloaders steps (see par CF05-CF12).
ACF5
For circuits n° 2/3/4, if a circuit is not configured, but relative resources have
been configured (pump down relay, heaters, outdoor fans)
If Pd01>0 and relays are configured as Circuit 1…4 pump down solenoid
valve (DO type=30…33)
Anti-freeze heaters enabled and relays are configured as Antifreeze heaters
/ support / boiler 1…4 step (DO type=4…7)
FA01=4, FA06=1, and AO is configured as 0÷10V/4÷20mA proportional
output for circuit n° 1 fan speed control (AO type=1…4 or 18…21)
FA01>0, FA06=1, and relays are configured as fan steps (DO
type=14…29).
ACF6
If SL01=0 and the total number of compressor power steps in the 4 circuits
(set by CF05…CF12) is > 40.
Compressor 9…16 is configured with more than 1 steps (CF09…CF12>0).
ACF7
If the pump down function is enabled (Pd01>0), but in at least one configured
circuit:
The relevant solenoid valve relay (DO type=30…33) is not configured.
Pump down pressure switch (DI type=85…88) and circuit evaporating
pressure transducer (AI type=56…59) are all not configured, and if the
pump down is enabled also at start (Pd01=2/4) even the low pressure
pressure switch (DI type=14…17) is configured
If at least one pump-down solenoid valve has been configured, but the pump-
down solenoid valve does not correspond with the circuits configuration. For
example, if circuit 2 is configured, but pump-down solenoid valve 2 does not
exist.
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