Condair Nortec GS 50, Operation And Maintenance Manual

Page: 64 / 92

64 Maintenance
2583701_C_EN_1812_Nortec-GS_OM Nortec GS
6.5.7 Replacing Backup Battery
DANGER!
Risk of electric shock!
The Nortec GS humidifier is mains powered. Live parts may be exposed when the door panel
on the control cabinet is removed. Touching live parts may cause severe injury or even
death.
Prevention : Shut down the unit as described in "Shutting Down" on page 48 before replacing the
backup battery.
CAUTION!
Electrostatic discharge (ESD)!
The electronic components inside the control cabinet in the humidifier are sensitive to elec -
trostatic discharge (ESD).
Prevention:
Take appropriate measures to protect the electronic components inside the unit against
damage caused by electrostatic discharge (ESD). Refer to ANSI/ESD-S20.20.
Only a qualified service technician authorized by the customer should replace the backup battery on
the integrated control board.
Replace the backup battery on the integrated control board as follows. Refer to Figure 19 on page 64 .
1. Remove the door panel on the control cabinet. Swing the front panel open.
2. Replace the backup battery on the integrated control board with a new 3V battery (CR 2032).
3. Close the front panel, and install the door panel, making sure that it is fastened securely.
4. Remove the lock and tag from the external disconnect switch, and restore power to the humidifier.
Figure 19:
3
2
1
Backup Battery Replacement
1 Panel, front
2 Battery – 3V (CR 2032)
3 Board, integrated control