MAN1565-4
36
3.
Monitored Inputs: via TB2. (EOL Resistance 22K
, Series Resistance 4K7
)
➢
Pressure Switch (PSW) agent released
➢
Low Pressure Switch (LPSW) agent storage cylinder pressure has dropped to a pre-determined level;
and
➢
Interlock, the manual lock-off valve has been operated.
4.
Gas Fired: Output via RL2 N/O contacts rated at 1A @ 24VDC wired to TB3. Used to indicate to other
monitoring devices the agent has been released.
5.
System Inoperative: via RL1 N/O contacts rated at 1A @ 24VDC wired to TB4. Used to warn by way of signage
/ audible alarm and/or monitoring that the system is inoperative.
6.
Stage 1: Output; initiates the visual and audible Fire Alarm and Evacuate warnings.
➢
Monitored; via RL4 C/O contacts wired to TB5 1 & 2 (EOL required 10K
) and
➢
Un-monitored; via RL5 N/O contacts wired to TB5 3 & 4.
7.
Stage 2: output; initiates the visual and audible Fire Alarm and Do No Enter warnings
➢
Monitored; via RL6 C/O contacts wired to TB6 1 &2; (EOL required is 10K
) and
➢
Un-monitored; via RL3 N/O contacts wired to TB6 3 & 4
8.
Release: Main actuating circuit, monitored (10KΩ EOL r
equired) via TB7 1 & 2 (2A current limited),
9.
Release: Reserve actuating circuit, monitored (10KΩ EOL required) via TB7 3 & 4 (2A current limited)
Metron Igniters (max of 10
–
a series 2watt 18
resister must be added to the circuit)
Solenoid valve (max current of 2 amps & 27VDC)
6.18.1
Interface Wiring
Monitored Inputs TB2 1 & 2
Solenoid & Metron
This input relies on N/O or N/C relay contacts used in conjunction with 22K
EOL and 4K7
series resistors. The type
of agent release mechanism and contacts used has to be set in the Programming Menu for the input to function as per
the manufacturers specifications and be in accordance with the relevant Standard.
Note: The PSW, LPSW & the Interlock Mechanisms are all
mounted onto the top of the cylinder containing the Agent
Termination
Board
+ -
4K7
22K
EOL
Agent
Distribution
4K7
22K EOL
LPSW
LOCK
4K7
22K EOL
PSW
+ - + -
MAIN / RESERVE
RELEASE
To TB7
MAIN or
RESERVE
Release
Agent
MAIN
RESV
+ -
10K EOL
Solenoid
+ -
TB7
For METRON
add a series 10ohm resistor here
*
*
Figure 28:
Solenoid, Metron PSW, LPSW and “LOCK” Wiring
LPSW & Lock
These inputs are also monitored and should be wired as shown above
