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FieldSmart
®
Fiber Active Cabinet (FAC) 900
__________________________________________________________
Installation Manual
Direct: 763.476.6866 • National: 800.422.2537 • www.SeeClearfield.com • [email protected]
Manual 020420 REV B - April 2019
Step 1:
Step 2:
Step 3:
Step 4:
Step 5:
Installing a Battery Heater
For colder climates, Clearfield recommends using an optional battery heater to prevent VRLA batteries from freezing and to
prolong battery life. A battery heater supports one VRLA battery string. Ni-Cd battery strings do not require a battery heater.
The battery heater is controlled by a thermostat set for the following operation:
4° C
– Battery heater turns On.
16° C
– Battery heater turns Off.
Note:
The battery heater sits directly underneath the battery string. You must install the heater into the battery enclosure
before installing batteries.
To install a battery heater in an FAC 900 battery enclosure
Unpack the battery heater from the shipping packaging.
Open the side cabinet door.
Install the mounting bracket for the battery heater jumper cable as follows:
a.
Position the bracket against the left equipment rack, aligning the bottom bracket hole with the counterpart
hole on the rack immediately above the internal battery enclosure.
b.
Install (2) mounting screws to secure the bracket to the rack.
Remove the seismic retaining bracket from the battery enclosure as follows:
a.
Remove the (2) hex head screws and washers from each side of the retaining bracket.
b.
Rotate the retaining bracket forward, and lift the bracket from the groove at the base of the battery enclo-
sure.
Install the battery heater into the battery tray in the internal battery enclosure as follows:
a.
Orient the battery heater with the heating element and alignment tabs on the bottom (face down) and the
power and ground wires on the left side.
b.
Route the heater power and ground wires through the left rear hole of the battery enclosure.
c.
Place the heater into the battery tray, aligning the heater tabs into the slots in the tray.