AGS Merlin 1000S Manual de instalação e operação - Página 6

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Installation & Operation Manual

4. PRESSURE SENSOR

The pressure sensor is wired to the [PRESSURE SENSOR] connector and screwed into the downstream

port of the gas solenoid valve. Connect the pressure sensor as shown:

Wiring: Red

[+]

Black [-] Blue

The sensor will monitor the gas supply pressure and if pressure drops below 0.17psi –

the gas valve will close as this could mean a gas leak is present.

The pressure sensor operating pressure is: 0 – 1.45psi.

5. EM REMOTE

Connections for remote emergency shut-off or stop buttons is detailed on the circuit board as [EM

REMOTE]. This is linked out as a factory setting. Remote emergency shut-off buttons should be volt free

and wired to the Merlin 1000S using a plenum security cable, white, 18/2 (18AWG 2 conductor),

stranded, CMP or similar.

6. GAS DETECTOR

Connections can be made for a Merlin gas detector (LPG, NG,

CO or Hydrogen).

If no detector is being used leave the factory fitted link in.

A wiring example is shown.

Refer to your gas detector manual for further information.

7. FAN SWITCHES

This terminal switches when the key is turned on and off.

This can be connected to a fan switch (supplied separately) which can provide power to fans when the

control panel is switched on.

8. CO2 MONITOR

This terminal can be used to connect a Merlin CO

concentration of CO

If no CO2 monitor is connected, the panel will 'beep' upon power up and the CO2 LED will flash 3 times

to indicate that this terminal has been disabled. An external power supply is required.

Refer to your CO

monitor manual for further information.

9. 12V DC

This is a power output for external auxiliary devices when there is power at the panel and can be used to

create a relay switch with the BMS relay output.

Max output: 50mA

Rev: 10

02-21

[

]

monitor to shut off the system in the event of a high

Merlin 1000S