Edwards Signaling 2400 Series - Manual (Page 18)

10
4.4 Installation Instructions
Mounting the Backbox
Install backbox per drawings
Control Panel INSTALLATION 1 and Control Panel INSTALLATION 2. If a
2400- BATBOX Battery Cabinet is required, refer to the CONTROL PANEL APPLICATIONS 2 drawing for
information.
Utility or Primary Power Circuit
NOTE
Install primary power conduit on lower left side or left bottom of backbox.
The panel requires a dedicated 120 VAC, 15A, 50/60 Hz branch circuit. Label the circuit breaker "Fire
Alarm Control Panel." Within the fire alarm enclosure, route wire away from power limited circuit wiring.
WARNING
Do NOT apply power at this time.
System Control Wiring
1.
Refer to the drawings at the end of this manual for circuit wiring diagrams and wire charts showing
maximum wire runs and loading. Install system wiring using the wire type and gauge per the Authority
Having Jurisdiction. Locate field wiring conduit on the upper sides and top of the backbox. At the
panel, leave approximately 5’ (1.5 m) of wire available for dressing and termination. Pair and
label wires according to zone and function. Do not mix power limited and non-power limited wiring in
the same conduit.
2. Do not remove the factory installed test resistors from the panel at this time. The test resistors are
used for panel testing in the next steps. Refer to the drawings provided with each initiating and
signaling device for installation details. Install End-Of-Line resistors at the end of Class B circuits.
3. Use an ohm meter to check circuit continuity and verify that the wiring is free of shorts and ground
faults, as follows:
Class B (Style B) IDC meter readings should show 4.7K
Ω
(EOL Resistor) between circuit pairs.
Each wire should show an open to ground.
Class A (Style D) IDC meter readings should show a short between each set of outgoing and
incoming wires, and an open between each side of the circuit.
Class B (Style Y) IAC meter readings should show 4.7K
Ω
(EOL Resistor) between circuit pair in
one direction and a short (polarized signals conducting) with the meter leads reversed. Each wire
should show open to ground.
Class A (Style Z) IAC meter readings should show a short between each set of outgoing and
incoming wires. Readings should show an open in one direction and a short (polarized signals
conducting) with the meter leads reversed between each side of the circuit.