Ampac ZoneSense User Manual download pdf (Page 21)

Installation & Commissioning of Control & Monitoring Add On’s

Page: 19

Solenoid & Metron

This input relies on N/O or N/C relay contacts used in conjunction with 22KΩ EOL and 4K7Ω

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

Figure 28: Solenoid, Metron PSW, LPSW and “LOCK” Wiring

LPSW & Lock

These inputs are also monitored and should be wired as shown above

To Monitoring

Interface / Device

RL2A

TB3

= MOV

35V

To Sys

Inop Mon

System Inoper ative

RL1A

TB4

+27V Current

Limited to1A

Figure 29: Gas Fired Wiring Figure 30: System Inoperative Wiring

As can be seen from above the;

Gas Fired Output can be wired to any interfacing or 1A monitoring circuit that requires a closed

relay contact to indicate a change of state. This could be a relay or a solid state device.

System Inoperative Outputs 27V @ 1A to supply interfacing, signage and aural alarms to

indicate the system has been taken out of service or has developed a fault.

Stage 1, Stage 2

- ( + )

+ ( - )

TB5 = Stage 1

TB6 = Stage 2

= MOV

35V

+ve

-ve

10K

EOL

1 or 2 Way

Signage

To audible / visual

device or interface

Stage 1 or

Stage 2

RL3A

RL5A

RL4B

RL4A

RL6A

Agent Termination Board Relays

RL6B

The above circuitry applies to both

TB5 ( Stage 1 ) and TB6 ( Stage 2 )

TB5 / 6

MAIN RESV

+ -

10K EOL

Solenoid

+ -

TB7

Figure 31: Stage 1 and 2 Wiring Figure 32: Agent Release

Solenoid Wiring

Current Generation Signage

Stage 1 displays the warning sequence ie discharge of the agent is imminent while Stage 2

communicates the discharge of the agent is or has occurred DO NOT ENTER.

Generation Signage

Is able to display both phases of agent release.

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Ampac ZoneSense User Manual Page 21

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