ACF6
• The number of compressors/steps of the 2 circuits ( CF04 + CF05 ) is:
√ > 4 with no direct compressor start-up (CO10 ≠ 0) or the number of steps is ≠ 0 (CF06),
√ > 2 and the intermittent valve is configurated with ON (CO08) and OFF (CO09 ) ≠ 0
• Pump-down function but at least in one circuit
√ The pump-down solenoid relay is not present
√ No pump-down pressure switch or evaporating probe when
the pump-down is enabled with unit in start
Or
No low pressure switch configurated.
• The compressor configuration with CF04 and CF05 but not the relay outputs:
√ Main
√ Intermittent valve when enabled with the ON / OFF time, CO08 / CO09 ≠ 0
√ When the by-pass time ≠ 0 and there is no partialization or by-pass valve configured
√ Motor part_2 with part-winding
√ The necessary step valve configurated
• One relay is configured:
√ Too much compressors
√ Intermittent valve when ON / OFF time CO08 / CO09 ≠ 0
√ By-pass gas when the by-pass = 0
√ Compressor Motor coil with direct compressor start-up
• Too much step valve or CO12≠0 and unit configured with single stage compressor
ACF7
Evaporator pump
√ Enabled (CO15 ≠ 0) but the relay is not configured
√ Not enabled (CO15 = 0) but the relay is configured
Condenser pump
√ Enabled (CO20 ≠ 0) but the relay is not configured
√ Not enabled (CO20 = 0) but the relay is configured
Alarm configuration water pump in antifrizee alarm
• if Ar21=1 and Ar22=0
ACF8
• Thermoregulation probe:
The thermoregulation probe (in chiller configured by ST09, in heat pump when enabled
configured by ST10) is not properly configurated (it does not exist or it is not a NTC)
ACF9
Compressor inverter controlled
• 2 anologue output configurated for the same compressor
• the analogue output is configurated but is not configurated the relay
• unit configured as motor condensing but also compressor inverter controlled enabled
AC10
Compressor with different weight capacity:
• one compressor configured with weight = 0
• termoregolation not neutral zone
AC11
Geothermal function / alarm differential inlet_outlet:
• wrong configuration of the probes involved in the regulation (one NTC probe and one
pressure probe)
Origin
Wrong programming
Reset
Correctly programming
Restart
Automatic
Icon
Blinking
Action
Alarm relay + buzzer ON