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4.4 MAIN CURRENT CARRYING CONTACTS
At least once annually, have an Authorized Service Technician
check the main current carrying contacts in the transfer mecha-
nism. They will repair or replace major components that have been
found defective.
4.5 BATTERIES
The batteries in the transfer switch controller are of the lead acid
type. The batteries are rechargeable. Replace with Panasonic cata-
log no. LC-R121R3PU or equivalent every three (3) years.
Maintenance
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