Nortel North American DMS-100 Instruction Manual page 157

1-142 Trouble locating and clearing procedures (continued)
Replacing a cooling unit assembly in a 42-in. cabinet
CPC A0377580, A0382102, A0383322, A0383323
13
14
At the back of the cabinet
15
16
At the front of the cabinet
17
18
19
297-8021-544 Standard 14.02 May 2001
Cooling
unit cover
Cooling unit bolt
(four)
Slide the cooling unit assembly out of the cabinet.
Slide the replacement for the cooling unit assembly into the cabinet.
Reconnect the electrical connector of the cooling unit.
Note: Step 9 shows the location of the connector.
Close the cabinet doors.
Use the four mounting bolts to fasten the cooling unit assembly to the cabinet.
Note: Step 12 shows the location of the mounting bolts.
Insert the filter, that you removed in step 11, into the replacement cooling unit.
Note: Insert the filter with the arrows on the front that point up.
Determine if the power to the cooling unit connects through a PDC or a
CPDC.
If the power to the cooling unit
connects through a PDC
connects through a CPDC
(continued)
Cooling unit
Do
step 20
step 21