Cabinet Top Assembly; Qud24 Fan Unit Installation - Northern Telecom Meridian SL-1 Installation Manual

2-38 Installation and connections
Chart 2-8

QUD24 FAN UNIT INSTALLATION

STEP PROCEDURE
1 If not previously removed, remove the lower front and top rear covers.
2 Remove screws securing cabinet top assembly and remove assembly and louvers (Fig.
2-12).
3 Position QUD24 cooling units in their assigned location on the cabinet top panel and
secure with mounting screws (Fig. 2-13).
4 Connect a QCAD302 power cable from connector P2 on the first QUD24 unit to
connector P1 on the second QUD24 unit (Fig. 2-13).
5 Connect the male connector of a QCAD303 power cable to connector P1 on the second
QUD24 unit (Fig. 2-12).
6 Connect the other end of the QCAD303 power cable to connector CU1 of the
QCAD277 power cable at the rear of the cabinet (Fig. 2-13).
7 Install a QCAD304 terminating plug in connector P2 on the first QUD24 cooling unit
(Fig. 2-13).
8 Secure cooling unit cables to cabinet top panel with plastic cable ties to avoid
interference with fans.
9 Remove and store the six screws from the cabinet top assembly and insert six
replacement screws (longer screws supplied with cooling unit assemblies).
Note: The six removed screws should be retained for future use.
10 Install the two extra louvers supplied with the cooling unit assemblies and reinstall the
cabinet top assembly (Fig. 2-12).
11 Ensure that the QUX19 unit located at the front bottom of the cabinet is equipped with
a 3 A fuse in the fuse position designated FN.
12 If required, reinstall cabinet covers.
Appendix 1 to 553-2601-200