Condair US 13, Operation And Maintenance Manual

Page: 58 / 74

58 | Maintenance
2588787_B_EN_2005_US_OM
US
to flow out of the unit when power is shut off.
DANGER!
Risk of electric shock!
The unit is mains powered. Using the On/Off switch on the humidifier to shut down the unit will
NOT shut off power to the control cabinet. Live parts may be exposed when the access panels or
doors are removed. Touching live parts may cause severe injury or even death.
Prevention: Before performing any work inside the humidifier, shut down the humidifier properly, as
described in
"Shutting Down the Unit" on page 37
. The unit must be connected to the mains only after all
mounting, installation, and maintenance work has been completed, checked for correct workmanship,
and the access panels/doors are closed and fastened securely. Secure the unit against accidental
power-up.
Only qualified personnel should perform maintenance or repairs on the unit.
CAUTION!
Electrostatic discharge (ESD)!
The electronic components inside the control cabinet in the humidifier are sensitive to
electrostatic 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 battery in the humidifier.
Always replace defective batteries that match the specifications given in the procedure.
IMPORTANT! NEVER short-circuit and bypass the battery.
Replacement
1.
Remove the door panel on the control cabinet. Remove the locking screw and swing the front panel open.
2.
Disconnect the battery board cables from the battery.
3.
Replace the battery located on the backup board with a new one. Refer to
Figure 24 on page 55
.
4.
Connect the cables to the new battery.
5.
Close the front panel and install the locking screw to secure it.
6.
Install the door panel, making sure that it is fastened securely.