Tunstall FlamencoIP Technical Manual page 230

4. Shutting the power supply UPS 60 off
1. Shut off the input voltage (115 – 230 Volt).
2. Remove the UPS function acc. to item 2.3.1 (Remove the bridging contact), otherwise the load for
the user circuits will be supplied through the battery until the total discharge circuit disconnects the
battery.
5. Service
We recommend replacing the batteries every 2 years as part of regular maintenance.
6. Battery service life
The batteries connected to the power supply unit UPS 60 are maintenance-free, valve regulated lead
acid type (VRLA) AGM batteries. Based on their EUROBAT classification, these batteries have a
service life of 3 - 5 years. Their usable life is highly dependent on temperature (up to 20°C: 4 - 6 years;
see diagram 1). The capacity of the batteries is around 60% after 3 - 5 years.
If the system will not be used for an extended period of time, the batteries should be fully charged to
prevent a total discharge. (Refer to item 7 "Storage") While the system is not used, the battery fuse
has to be removed to prevent total discharge.
Temperature
Diagram 1: Battery service life in relation to ambient temperature
6.1 Battery change
Lead-acid AGM batteries contain harmful toxic substances. Observe valid safety directives
when during handling and transport. For disposal, comply with local directives.
Pb
Batteries bear the risk of excessive short-circuit currents. Never create any direct contact
between the battery posts and or other conductive component parts. Therefore, remove any
wristband, watch, finger rings or other metal objects when working at the open unit. Always
use tools with standard isolating handles.
Batteries may be replaced only by the same type of battery (2 x 12 V; 24 Ah). We recommend the use
of two batteries type BAT 12-24, Tunstall Order No. 00 0648 87. The use of other makes may create
problems due to different connecting terminals or differing dimensions.
1. Shut off mains supply to the power supply unit UPS 60 !!!
2. Refer to the information for the battery set for UPS 60, order no. 77 3450 00.
3. Perform a functional check of the power supply UPS 60!
© Tunstall GmbH, Orkotten 66, 48291 Telgte, Germany, www.tunstall.de, 00 8802 81, Rev. 7.0 (02/2017)
Product leaflets 03/2018, page 115
Power supply unit UPS 60, Order No. 77 3400 10
English - 5