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USER MANUAL – Release 1.2 of 01/01/2010
Page 44 of 191
Version: 02/03/2010
Condenser flow alarm working mode
AL 21
Condenser flow alarm working mode
0 = disabled
1 = enabled in cooling mode only
2 = enabled in heating mode only
3 = enabled both in cooling and heating mode
0
3
AL 22
Delay on condenser flow alarm activation from water pump activation
0
250
Secs
AL 23
Delay on condenser flow alarm activation before moving from automatic to
manual reset
0
250
Secs
AL 24
Delay on condenser flow alarm detection from digital input switching
0
250
Secs
AL 25
Delay on condenser flow alarm automatic reset from deactivation of the digital
input (disabled if the alarm has turned to manual reset)
0
250
Secs
AL 26
Condenser flow switch polarity detection enabling. If the polarity detection is
enabled the alarm occurs if the polarity doesn’t change after the pump start
regardless the polarity configuration.
0
1
Compressors thermal overload alarm
AL 27
Delay on compressor thermal overload alarm activation from compressor start
0
250
Secs
AL 28
Maximum number of compressor thermal overload alarm occurrences per
hour
Reset is always manual if AL28 = 0
Reset is always automatic if AL28 = 60
Reset moves from automatic to manual if AL28 moves from 1 to 59
0
16
AL 29
Compressor thermal overload alarm working mode
0 = blocks the individual compressor
1 = blocks the whole circuit
0
1
AL 30
Compressor thermal overload alarm detection with compressor OFF
0 = Disabled
1 = Enabled
0
1
AL 31
Compressor thermal overload alarm password value (see procedure)
0
999
Antifreeze / Low room air temperature / Low outlet air temperature alarm working in cooling mode
AL 32
Minimum limit for antifreeze / low room air temperature / low outlet air
temperature alarm in cooling mode
-50.0
-22
AL34
°C
°F
Dec
int
AL 33
Maximum limit for antifreeze /low room air temperature / low outlet air
temperature alarm in cooling mode
AL34
110
230
°C
°F
Dec
int
AL 34
Antifreeze / low room air temperature / low outlet air temperature alarm set
point
Defines the temperature value below which the antifreeze / low room air
temperature / low outlet air temperature alarm is activated
AL32
AL33
°C/°F
Dec / int
AL 35
Antifreeze / low room air temperature / low outlet air temperature alarm
differential
0.1
0
25.0
45
°C
°F
Dec
int
AL 36
Antifreeze / low room air temperature / low outlet air temperature alarm delay
in cooling mode.
Delay on activation of the antifreeze / low room air temperature / low outlet air
temperature alarm from the occurrence of the alarm condition (temperature
below alarm set point)
0
250
Secs
AL 37
Maximum number of antifreeze / low room air temperature / low outlet air
temperature alarms in cooling mode per hour.
Defines the maximum number of antifreeze / low room air temperature / low
outlet air temperature alarms per hour. When this number is exceeded the
alarm moves from automatic to manual reset.
Reset is always manual if AL37 = 0
Reset is always automatic if AL37 = 60
Reset moves from automatic to manual if AL37 moves from 1 to 59
0
60
AL 38
Antifreeze alarm working in cooling mode
0 = Just switches the compressors off and shows the label without activating
buzzer and alarm relay
1 = switches the compressors off, shows the label and activates buzzer and
alarm relay
0
1
Antifreeze alarm working in heating mode
AL 39
Minimum limit for antifreeze alarm in heating mode
-50.0
-22
AL41
°C
°F
Dec
int
AL 40
Maximum limit for antifreeze alarm in heating mode
AL41
110
230
°C
°F
Dec
int
AL 41
Antifreeze alarm set point in heating mode
AL39
AL40
°C/°F
Dec / int
AL 42
Antifreeze / low room air temperature / low outlet air temperature alarm
differential in heating mode.
0.1
0
25.0
45
°C
°F
Dec
int
AL 43
Antifreeze / low outlet air temperature alarm delay on unit start in heating
working mode
Warning
In case of alarm condition (control probe temperature lower than AL41) in
Stand-by or remote OFF status and AL43 not zero, if the unit is activated in
heating mode the antifreeze condition is neglected in order to allow the
compressors to start at least for the delay AL43 as the unit heats-up the water
or the air. On expiry of the AL43 delay time, if the antifreeze condition is still
active the AL44 counter is activated.
0
250
Secs
