OPERATING AND MAINTENANCE MANUAL
Chapter 7 - Electronic controller
TAEevo Tech 015÷802 60 Hz UL
50
The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited
ENGLISH
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7.11.24 Unit configuration alarm
Display labels meaning
ACF1 Unit configured as heat pump and circuit inversion valve not configured
incorrect combination in values of defrost parameter (dF22/23)
ACF2 Unit configured for ON/OFF or proportional condensing control without configuration of the competent probe
(1 probe per circuit if separate condensing, at least 1 probe if single condensing).
In case of proportional control at least one of the following rules is not observed:
• FA09 + FA11 + FA12 < FA10
• FA12 < FA13
• FA07 < FA15 < FA08
In case of proportional control at least one of the following rules is not observed:
• FA18 + FA21 + FA20 < FA19
• FA21 < FA22
• FA16 < FA23 < FA17
In case of ON-OFF control the following rule is not observed:
• FA09 < FA10
In case of ON-OFF control with pump enabled the following rule is not observed:
• FA18 < FA19
In case of pump enabled and defrost enabled no condensing / evaporation probe per circuit.
In case of fans control with PWM signal continuous supply has been selected (CF83=0).
In case of step control enabled if step1 is not < step2 < step3 < step 4 in chiller mode / if step 4 is not < step3
< step2 < step 1 in heat pump mode.
ACF3 Two digital / analogue or relays configured with same function or configured without adequate resources
(e.g. compressor 3 thermal cutout configured but compressor 3 not configured).
ACF4 • CF59 = 1 and digital input not configured or CF59 = 2 and no NTC probe configured as
ambient air temperature.
• Unit configured as heat pump only and compressors plant enabled.
• CF03
0 and no condensing unit operation enabling digital input and loads configured.
• CF03
0 and all condensing unit operation enabling digital inputs and cooling / heating
demand configured.
• CF03 0 and capacity demands configured in mode that is incongruent with the configuration
of the compressors / capacity steps relay outputs.
ACF5 If circuit 2 is not configured and the resources have not been configured (pump-down relay, heating elements,
cycle inversion valve, condensing fans, recovery, auxiliary).
ACF6 Total number of compressors in the 2 circuits (CF04 + CF05) is:
•> 4
• > 4 and starting is not direct (CO10
0) or number of capacity steps (CF06) is 0
• > 2 and intermittent valve is enabled with ON times (CO08) and OFF times (CO09)
0
If pump-down operation is configured but in at least one circuit:
• The circuit pump-down solenoid relay is not configured.
• The pump-down is not performed by time and the pump-down pressure switch and circuit
evaporation probe are not configured and pump-down is enabled also in start-up or even the low
pressure switch is not configured
The compressor has been configured by means of parameters CF04 and CF05 but the relative relays have not
been installed:
•Compressor relay
• Valve intermittent when enabled from capacity control ON / OFF times (CO08 / CO09
0)
• or gas by-pass when the function is enabled (by-pass time
0)
• Starting part-winding
• Of capacity control for all capacity steps provided
A relay has been configured:
• Associated with a compressor not enabled by parameters CF04 and CF05
• Valve intermittent when ON or OFF times =0
• Capacity control not envisaged
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