8
4.
Ventilation:
The UPS is equipped with a fan for cooling. Therefore, place the UPS in a well-ventilated
area. It’s required to maintain minimum clearance of 100mm in the front of the UPS and
300mm in the back of the UPS for heat dissipation and easy-maintenance. Maintain
minimum clearance of 100mm in the bottom of the UPS to avoid dust ingress and adequate
air intake (Horizontal orientation only).
3.7.1.
External battery connection
Follow the procedure in the external battery cab manual.
3.7.2.
UPS input connection
Plug the UPS into a two-pole, three-wire, grounded receptacle only. Avoid using extension
cords. The power cord is supplied in the UPS package.
In the UK, circuit protection is provided
via the plug fuse, in other areas ensure that the circuit feeding the VFI1000QS has over current
protection in place not exceeding 16A (e.g. a circuit breaker).
Note:
Check if the site wiring fault indicator lights up in LCD panel. It will be illuminated when
the UPS is plugged into an improperly wired utility power outlet (Refer to Troubleshooting
section).
3.7.3.
UPS output connections
There are two kinds of outputs: programmable outlets and general outlets. Please connect
non-critical devices to the programmable outlets and critical devices to the general outlets.
During power failure, you may extend the backup time to critical devices by setting shorter
backup time for non-critical devices.
Note that the programmable outlet feature is an option in settings (Section 4.5 – 09 ) and if
disabled the programmable outlets operate the same as the general outlets, and therefore you
can connect critical loads to both sockets.
Do not connect any power cord to the output of the UPS that is in excess of 10m. This is to
ensure compliance with EMC regulations.
3.7.
UPS Connections
