EP203 AUTOMATIC EXTINGUISHER PANEL
Page 12 of 45 • EP203 AUTOMATIC EXTINGUISHER PANEL INSTALLATION MANUAL • Approved Document No. DFU0002032 Rev 4
Siting and Mounting the EP 2 0 3 P anel
The EP203 panel enclosure can be surface, or semi-flush mounted. It must be sited
indoors on a dry, flat surface in an area not subject to conditions likely to affect its
performance, e.g. damp, salt-air, water ingress, extremes of temperature, physical
abuse, etc. It should be sited at a height where it is easily accessible and in a prominent
position within the building. Ideally, the LED indicators and LCD unit on the front of the
enclosure should be at eye level.
To expose the EP203 panel’s mounting holes, the lid and base PCBs have to be removed
(see Page 9). Using the five mounting holes provided, fix the base securely onto the
wall. The mounting holes are suitable for use with No.8-10, or 4-5mm countersunk
screws. Assess the condition and construction of the wall and use suitable screw fixings.
Note : The central mounting hole can be used to temporarily hang the base unit so it
can be leveled and its remaining fixing points marked for drilling.
Any dust, or swarf created during the fixing process must be kept out of the enclosure.
Mains Wiring
The requirement for the mains supply to the EP203 panel is fixed wiring, using 3-core
cable (no less than 1mm
2
and no greater than 2.5mm
2
), or a suitable three-conductor
system, fed from an isolating switched spur, fused at 3A. This should be secure from
unauthorised operation and be marked ‘FIRE ALARM: DO NOT SWITCH OFF’. The mains
supply must be exclusive to the EP203 panel.
(As an alternative to a switched fused spur, a double-pole isolating device may be used
providing it meets the appropriate national wiring regulations. See Figure 3 below.
Note : The mains supply wiring MUST be segregated away from the detector and alarm
sounder circuit cabling that is classed as low voltage.
Figure 3 : Mains Wiring
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