Phcbi MBR-506D Series, Operating Instructions Manual

Page: 21 / 32

21
REPLACEMENT OF BATTERY
Location of a nickel-cadmium battery
This unit is provided a nickel-cadmium battery for the
power failure and temperature warning device. The
battery is located in the warning device inside the control
panel. (see Fig. 1)
Note:
Replace the nickel-cadmium battery every 3 years to
ensure the alarm is operated in the event of power failure.
Contact our sales representative or agent for the
replacement of battery.
Removal of the nickel-cadmium battery
1.
Turn off the power switch and disconnect the power supply plug.
2.
As shown in the Fig. 2, remove 4 screws fixing the control panel by using a screw driver.
3.
Pull out the control panel, and then remove 2 screws mounting the warning device to the panel. (see
Fig. 3)
4.
Detach 2 connectors from the warning device. Remove 4 screws fixing the warning device cover by
using a screw driver. (see Fig. 3)
5.
Remove 2 screws fixing the mounting plate by using a screw driver. (see Fig. 4)
6.
Remove 2 screws mounting the supporting plate for the battery by using a screw driver. (see Fig. 5)
7.
Disconnect the battery connector. Cover the battery terminal with an insulating tape to avoid the short
circuit. Then follow the procedure for recycling or proper disposal.
Power failure and
temperature warning device
Fig. 1
Control panel
Power failure
and temperature
warning device
Mounting plate
Battery
Supporting
plate
Connector
Fig. 2 Fig. 3
Fig. 4 Fig. 5