Virginia Controls, LLC MH-3000 User Manual, 1_03C10-VC Page 34
The Central Processing Unit (CPU) board contains the hardware that controls the inputs
and outputs which control the elevator. This section describes the major components on
the board, and the function of the connectors and LEDs.
5.5.1.1 CPU Battery
The CPU battery maintains the Real Time Clock, and also the status of key parameters
and functions in the RAM memory. The battery life is approximately 5 years.
WARNING: Replace the battery with RENATA 3V Lithium battery, Part
No. CR2032 Only. Use of another battery may present a risk of Fire or
Explosion.
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