User manual

49
Allarme “CHt” e o refrigerazione (ripristino manuale)
temp. condensatore
Preallarme
solo visualizzazione allarme “cht”
(ripristino automatico)
“AC” - “AE”/2
“Ac”“Ac-AE”
ON
temp. condensatore
“AE”
“Ac”
Fig. 7.m
Fig. 7.n
ENGLISH
ir33 +030220441 - rel. 2.5 - 16.06.10
ALF: Antifreeze alarm threshold
De nes the temperature value below which the antifreeze alarm is detected, with the message AFr.
The function is active if a probe has been set as an antifreeze probe, /A2, /A3, /A4, /A5= 4 and is delayed by the time set for
parameter AdF.
The antifreeze alarm stops the compressor and activates the alarm relay, if H1 or H5=0, 1, and has manual reset.
The antifreeze alarm stops the compressor (stops cooling operation) and activates the alarm relay, if ‘H1’=0, 1 or ‘H5’=0, 1.
The alarm is reset manually or from the supervisor.
Note: if control with two compressor steps is selected (with or without rotation, H1 = 12 or 13) the antifreeze alarm acts on both
steps.
Default: ALF= -5.0.
AdF: Antifreeze alarm delay.
Sets the delay for detecting the antifreeze alarm.
Default: AdF= 1.