3: Installation
26
TS_604_01 PowerWave PW3000/TP User Manual UK 5/1/18
3.5.1 Clearances
The following notes are applicable to both the
UPS and external battery cabinet.
The cabinet is force ventilated with extractor
fans mounted on the back panel drawing
cooling air through the inlet grills on the front
of the unit. Sufficient space must be provided
at the back and sides of the cabinet to permit
adequate air-flow.
Rear access is required for connecting the
power and control cables, and also to operate
the UPS power switches. If direct rear access
is not available, sufficient space must be
provided at the side of the cabinet to allow the
operator to reach around the cabinet to
operate the power switches.
Note:
Full access is required to both sides of
the cabinet for maintenance.
The UPS cabinet is mounted on wheels, so if the installation does not afford direct side access the UPS connecting cables
should be of sufficient length to allow the cabinet to be moved forward to offer unhindered side access when required.
We recommend the following minimum clearances:
• Rear access (X): a minimum of 500mm for unrestricted airflow
• Side (Y): a minimum of 500mm for free airflow, but may need increasing to 1000mm to afford rear access for
operating the equipment power switches if direct rear access is not available (see also the note above)
• Front (Z): allow a minimum of 1000mm for maintenance access and the safe passage of personnel
3.6
Planning the installation (cabling considerations)
3.6.1 General requirements
The information in this section should help with the preparation and planning of the UPS power cabling.
It is the customer’s responsibility to provide all external fuses, isolators and cables that are used to connect the UPS input
and output power supplies. The UPS input and bypass terminals should be connected to the utility mains supply through a
suitable LV-Distribution board containing a circuit breaker or fused isolator to provide both overload protection and a
means of isolating the UPS from the mains supply when required. Similarly, the UPS AC output terminals should be
connected to the load equipment via a suitably fused load distribution board.
Input neutral grounding
A permanently connected input neutral is
required to enable the rectifier to operate
correctly and allow the UPS to function
properly when operating on battery. The input
neutral must also be grounded to permit
correct operation when the UPS is running on
battery.
d and connected to the UPS at all times. DO NOT use, a 4-
oard on a TN-S system.
UPS
UPS
Battery
Cabinet
X
X
Y
Y
Z
Z
Front
Front
Clearance (mm)
X
Y
Z
Minimum
~500
500~1000
1000
Figure 3.2 UPS & Battery cabinet clearance requirements
0V
230V
UPS
Figure 3.3 Permanent, grounded input neutral
