Chillers deltachill – Airedale DeltaChill FreeCool 110kW - 1080kW User Manual
Page 165
Chillers
DELTACHILL
™
Chillers
165
Installation, Commissioning and Maintenance Manual :7025232 12/ 2013
Code
Description
Auto Reset (Yes/No)
Unit Disabled
(Yes/No)
Component
Disabled
(Yes/No)
Cause
Action
AL055
Hours
Limit Pump
1
Yes
No
No
The hours run for the pump has
exceeded the threshold
If component is
functioning
correctly perform
maintenance and
reset hours
AL056
Hours
Limit Pump
2
AL057
CW Valve
Feedback
Yes
Yes
Yes
Valve Failed to open
Check: Valve
operation / Wiring
AL058
Low
Suction
Pressure 1
Yes
No
Yes
The suction pressure has
exceeded the low limit during
operation
Check: Evaporator
flow rate / Unit TD /
Refrigerant charge
AL059
Low
Suction
Pressure 2
AL060
pLAN
Network
Alarm
Yes
No
No
Chiller controller has lost
communication with sequence
controller
Check: Wiring /
pLan Connection /
Address
AL061
Oil Pre-
Heat Delay
Yes
Yes
Yes
Follows a controller power
restart and indicates time delay
before compressors restart
No action
necessary
AL062
Cct1 Diff.
Pressure
Yes
No
Yes
The compressor differential
pressure limits have been
exceeded
Check: Evaporator
flow rate / Unit TD /
Refrigerant charge
AL063
Cct2 Diff.
Pressure
AL064
Possible
Leak Unit
Yes
No
No
The reading from the leak
detector is above the threshold
Check: Pipe work
around the leak
detector
AL065
Evap.Inlet
Temp.
Fault
Yes
Yes
Yes
The Sensor has gone out of its
operating range
Check: Wiring /
Sensor
AL066
Circuit 1
Disabled
After
Pumpdown
No
No
Yes
The circuit has been pumped
down following a possible
refrigerant leak or manual
pumpdown request and
disabled
Investigate reason
for pumpdown and
reset
AL067
Circuit 2
Disabled
After
Pumpdown