How To Replace The Batteries In The Ht24 Lock - Onity HT22 User Manual

A) The freshness of the batteries when they are
purchased.
B) The number of transactions per day.
C) Extreme cold weather.
D) Battery quality.
Onity recommends the use of major brand batteries in
the locks, such as Energizer, Duracell and Panasonic
batteries. In installations where the lock will be
subjected to extremely cold temperatures, use four AA
lithium batteries. Both alkaline and lithium batteries
may be purchased through Onity.
A low-battery indication is given to Staff Cards for
approximately one month prior to the batteries being
completely dead. The hand-held Portable Programmer
can also be used to check the level of the batteries.

How to Replace the Batteries in the HT24 Lock

The four AA alkaline batteries are located in the lower
compartment of the outside escutcheon. To replace
these batteries, you will need a T-10 Torx screwdriver
and the Portable Programmer. Be sure to load the
Portable Programmer with the rooms that need battery
replacement. Remove the screw at the bottom of the
lock, then remove the bottom cover. (Lift up from the
bottom of the lock).
Replace the batteries using high quality alkaline
batteries such as Duracell, Energizer or Panasonic
batteries. In extreme cold climates, lithium batteries
may be used in lieu of alkaline. Be careful to insert the
batteries with the positive and negative ends in the
correct position.
Replace the battery compartment cover and secure with
the T-10 screw.
Use the Portable Programmer to update the door. This
must be done in order for the internal clock to be set to
the correct time.
Maintenance Functions - 117