Parker Hiross ATT Serie Manual De Uso página 29

High pressure by
Pressure Switch
No
Yes
Cooling air high
Decrease cooling air
temperature temperature
No
Yes
Decrease com-
Excessive thermal load
pressed air quantity
temperature
No
Yes
Condenser dirty or Clean
obstructed
condenser
No
Replace
Yes
Fan pressure switch (PV)
pressure switch
not set
Z
No
Yes
Substitute ETV
ETV liquid closed
Z
No
No refrigerant
Yes
recharge
Low current absorption
Z
No
Fan pressure switch (PV)
not set
No
Excessive thermal load
High AD inlet Tem-
perature
English
FAULT
High Temperature by
Pressure Switch
Lower
current consumption
No
Replace
Yes
pressure switch
Z
REMEDY
CAUSE
Yes
No refrigerant
recharge
Z
Yes
Calibrate valve
Z
Yes
Yes
Increase cooling air
temperature
ATT060-090
By-pass Alarm fail/open
Request
external
assistance
Hot gas valve not cali-
brated
No
Fan pressure switch (PV)
not set
No
Low cooling air tem-
perature
No
Low AD inlet Tem-
peratur
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