Years from start-up
Component
…121110987654321
Coolant
RRCoolant draining and refill
PPPPPPChecking coolant quantity
PPPPPPPPPPPPPChecking coolant antifreeze con-
centration
IIIIIIExternal circuit of main heat ex-
changer (temperature, flow, pres-
sure)
Cabinet fans and fan control board
RCooling fans 230 V AC 50/60 Hz
RCIO-module for fan control
(230 V AC)
RRRCooling fans 115 V AC 50/60 Hz
RI/R
CIO-module for fan control
(115 V AC)
1)
Batteries
RControl panel battery
RRControl unit battery
Control unit
RBCU Control unit
Connections and environment
PPPPPPPPPPPPPQuality of supply voltage
Inspections
IIIIIIIIIIIIITightness of terminals
IIIIIIIIIIIIIAmbient conditions (dustiness,
moisture, corrosion, temperature)
IIIIIIIIIIIIICooling liquid pipe connections
Spare parts
IIIIIIIIIIIIISpare part stock
Other
IIIIIIIIIIIIIABB-SACE Air circuit breaker
maintenance
IIIIIIIIIIIIIABB Contactors maintenance
1)
Replace CIO-module or reset fan counters, see CIO-01 I/O module for distributed I/O bus control user's manual
(3AXD50000126880 [English])
Symbols
Inspection (visual inspection and maintenance action if needed)I
Performance of on/off-site work (commissioning, tests, measurements or other work)P
ReplacementR
Maintenance and component replacement intervals are based on the assumption that the
equipment is operated within the specified ratings and ambient conditions. ABB recommends
annual drive inspections to ensure the highest reliability and optimum performance.
64 Maintenance
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