9.5How to Replace the Internal Battery
WARNING
◇When covering the battery case, be sure not to catch the battery cable in the battery case. Failure to do so may shortcircuit the battery and result in a leakage, production of fire or explosion.
CAUTION 
◇Turn OFF the primary power (Switch the breaker "OFF"), before replacing the battery.
Failure to do so may result in product damage or a problem due to electric shock or
◇DO NOT touch any portions other than those designated.
Careless touch may cause electric shock and/or a
◇DO NOT use a new battery and a
◇DO NOT use different types of batteries simultaneously.
NOTICE
◇When replacing the battery, record the next replacement date of the battery on the "Battery Instruction Label" (See Figure 9.3) on the front panel.
◇The first replacement date of the battery has been specified on the "Battery Instruction Label" (See Figure 9.3) on the front panel at delivery.
9.5.1How to Replace the Battery Case
1)Stop the STP pump, and turn OFF the primary power (switch the breaker "OFF").
2)Unscrew the 4 screws attached to front panel (1) and bring the front panel down towards you.
3)Disconnect internal battery connector (2) (CON12).
4)Unscrew battery case screws (3) and pull out battery case (4) from the STP control unit.
5)Replace battery case (4) containing a new battery.
6)Tighten battery case screw (3) and secure the battery case (4).
7)Connect internal battery connector (2) (CON12).
8)Turn ON the primary power (switch the breaker "ON") as well as the POWER switch. Then, check whether or not "BATTERY NG" lamp (7) on the rear side of the front panel lights.
9)If "BATTERY NG" lamp (7) located on the rear of the front panel lights, press RESET switch (8) on the side of "BATTERY NG" lamp (7) to reset it (although an impact noise may generate momentarily during reset, it is not indicative of a problem).
10)Turn OFF the POWER switch and the primary power (Switch the breaker "OFF").
11)Close front panel (1) and tighten the 4 screws that secure the front panel.
12)Record the next replacement date (after one year) of the battery on "Battery Instruction Label" (9) attached to the front panel (See Figure 9.3).
