Nortel North American DMS-100 Instruction Manual page 158

Replacing a cooling unit assembly in a 42-in. cabinet
CPC A0377580, A0382102, A0383322, A0383323
At the front of PDC
20
At the front of CPDC
21
At the front of the cabinet
22
23
24
25
DMS-100 Family NA100 Trouble Locating and Clearing Procedures Volume 2 of 2 LET0015 and up
Trouble locating and clearing procedures (continued)
To insert the cooling unit fuses, push the fuse cartridges straight into the front
panel of the PDC.
Go to step 22.
DANGER
Risk of injury
Electricity can arc when you throw a circuit breaker. Wear
eye protection.
Throw the circuit breakers for the cooling unit.
Determine if all cooling unit fans are operating.
Note: If one or more of the cooling unit fans is not operating, the fan failure
lamp turns on. The fan failure lamp is at the top of the cabinet between the
doors.
If
all fans are operating
any fans are not operating
Close the cabinet doors.
Go to step 25.
For additional help, contact the next level of support.
The procedure is complete.
Do
step 23
step 24
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