Hochiki FIRElink-400CM - Manual (Page 38)

Page 38 of 58 FIRElink-400 Air Sampling System – Installation Manual
© 2010 Hochiki Europe (UK) Ltd 9-5-0-346/ISS4/OCT10
Mains fuse: For 230V operation, a standard 3A, 5 x 20mm mains fuse.
1.1.1 Backup Batteries
The FIRElink-400 Command Module can be fitted with 2 x 12V, 7 Ah backup batteries to give up to 24
hours’ operation in the event of mains power failure. The integral battery charger can recharge the
batteries to a minimum of 80% capacity within 24 hours of mains reconnection to comply with BS5839
and EN 54 part 4.
These fit under the covers immediately beneath the power supply, which are secured with four screws
each. The batteries are fitted with the supply terminals to the left hand side as viewed from above, with
the cut-out on the cover on the same side. To avoid current surge it is recommended that the batteries
are fitted with the unit powered up.
Batteries are fitted as follows:
 Remove the battery covers.
 The positive terminal on the battery nearest the power supply is connected to the red wire from the
power supply "BAT +" terminal (see section 185619544.01.1.1 “Command Module Internal Power
Supply” on page 36).
 The negative terminal on the first battery is connected to the positive terminal on the second
battery with the yellow battery interconnect wire supplied with the unit.
 The negative terminal on the second battery is connected to the black wire from the power supply
"BAT –" terminal.
 Replace the battery covers after fitting the batteries.
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