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21
Ballast Replacement.
There is not a set lifetime for ballasts. Ballasts are intended to last the life of the unit. However,
ballasts can fail prematurely and will need to be replaced. Purchase replacement ballasts through
your CenterPoint
TM
devices supplier. See Ballast Troubleshooting for diagnosing ballast faults.
Figure 14
Figure 15
Ballast Replacement Procedure
1.) Disconnect unit from power supply.
Note:
If the unit is powered on during cover removal, a safety switch will disconnect power.
Caution: Electrical plug must be disconnected before servicing. A break in power caused by the
safety switch is not considered disconnecting power.
2.) Remove access cover by loosening (6) screws with a Phillips-Head screwdriver.
3.) Disconnect MOLEX connectors powering catalyst panels. See Figures 7. Older models may use
wire nuts. See Figure 8. Take note of where each wire is connected. They will need to be rewired in
the same way once panel is put back into place.
4.) Remove catalyst panel. See Figure 9.
5.) Disconnect lamp plug and power attached to defective ballast. Take note of which terminals power
the defective ballast so the new one can be wired correctly. See Figures 14 and 15.
6.)
Use an 11/32” socket wrench to remove the (2) nuts holding the ballast into place.
7.) Inspect the new ballast and ensure that it matches the original one being replaced.
8.)
Reinsert and tighten the (2) nuts that hold the ballast in place with an 11/32” socket wrench. See
Figures 14 and 15.
9.) Reconnect the lamp plugs and reconnect ballast wires into push-in connectors. See Figures 14
and 15.