Cable Entries
Gland the installation wiring into the enclosure using the cable entry points as applicable.
Connect the 230Va.c input to the Mains Terminal Block as shown in Figure 2. A Mains cable grip is
provided on the p.s.u chassis which utilises a tie wrap arrangement.
8. Commissioning.
The following procedure is to be followed to safe guard equipment and prevent personal injury. The
equipment uses dangerous voltages and stores electrical energy, therefore commissioning and testing
must be carried out by qualified personnel.
All electrical installation and testing must be carried out in line with BS7671: 1992.
Commissioning Procedure
1.
Carry out visual inspection and carefully check for any damage, which may have occurred
during transit.
2.
Equipment should first be checked to ensure that any connections, which may have become
loose during transit are tightened.
3.
Ensure that all external cables to be connected to equipment are suitably rated. Also check that
all cable glands are correctly earthed.
As a minimum:
i)
Carry out a visual inspection of the installation for compliance to the regulations and
is free of damage.
ii)
Check the protective conductor continuity.
iii) Measure
insulation
resistance
iv)
Verify the polarity of the conductors.
v)
Measure the earth loop impedance.
vi) Test the operation of any ELCBs.
(refer to BS7671 for full details)
4.
Please note megger test equipment is not permitted to be used while connected to the
power pack, otherwise will cause serious damage to internal components.
5.
As the equipment relies primarily on natural convection for cooling purposes, it is important
that the enclosure is checked / sited in a position with a free flow of air. This also applies to
equipment fitted with cooling fans.
6.
Connect the A.C mains supply to the mains terminal, making sure to connect to the input
voltage stated in manual. Connect the earth connection to the earth stud provided and check
all other earth points are firmly connected.
7.
Before connecting any other external connections remove the mains fuse. Switch on the A.C
mains supply and check supply voltage and polarity are correct. Replace the fuse and check
that the power supply unit indicates the correct indications as per the information contained in
this document. Check power supply D.C output voltages are correct as per the information
contained in this manual.
8.
Caution to be exercised when connecting batteries, ensure correct polarity is observed, ensure
correct battery type (2 x 12V sealed rechargeable lead acid) is used.
There are no user serviceable parts and no user functions. All maintenance and repair work must only
be carried out by authorised and fully trained How Fire/C.E.L personnel.
The occurrence of a PSU fault should be indicated at access level 1 (applicable to Fire Alarm System
applications). If a power supply fault is indicated then call the authorised Service/Maintenance
Engineer.
Document Ref: O&M15845T.DOC/Rev 0 22.11.99 Page 8 of 8 Originator KP Checked By Approved By
