FRIEDHELM LOH Rittal 3273 Series, Руководство по сборке и эксплуатации

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Rittal enclosure cooling unit 19
6 Operation
EN
A06 PSA
H
pressure switch Ambient temperature too high Lower the ambient temperature;
reset the e-Comfort controller
Condenser soiled Clean the condenser;
reset the e-Comfort controller
Filter mat soiled Clean or replace;
reset the e-Comfort controller
Condenser fan defective Replace;
reset the e-Comfort controller
E-valve defective Repair by refrigeration engineer;
reset the e-Comfort controller
PSA
H
pressure switch defective Refrigeration engineer to exchange
reset the e-Comfort controller
A07 Evaporator coil Lack of refrigerant;
Sensor in front of or behind condenser
defective Repair by refrigeration engineer;
reset the e-Comfort controller
A08 Condensate warning Condensate discharge kinked or
blocked Check condensate drainage; correct any
kinks or blockages in the hose
Only for units with optional conden-
sate evaporation Check the evaporation unit, replace if neces-
sary
A09 Condenser fan Blocked or defective Clear the blockage; replace if necessary
A10 Evaporator fan Blocked or defective Clear the blockage; replace if necessary
A11 Compressor Compressor overloaded
(internal winding protection) No action required;
Unit switches on again independently
Defective
(check by measuring the winding re-
sistance) Replace by a refrigeration engineer
A12 Condenser tempera-
ture sensor Open or short-circuit Replace
A13 Ambient temperature
sensor Open or short-circuit Replace
A14 Icing temperature sen-
sor Open or short-circuit Replace
A15 Condensate warning
temperature sensor Open or short-circuit Replace
A16 Internal temperature
sensor Open or short-circuit Replace
A17 Phase monitoring For three-phase devices only: Incor-
rect rotary field/phase absent Swap two phases
A18 EPROM error New board installed incorrectly Software update needed (only following
board installation with more recent software):
Enter the programming level with Code 22;
press button 1 and confirm with "Set" until
"Acc" appears. Next, disconnect the unit
from the mains and reconnect.
A19 LAN/Master-Slave Master and slave not connected Check setting and/or cable
Display
screen System message Possible cause Measures to rectify the fault
Tab. 5: Troubleshooting with the e-Comfort controller