AGS Merlin 1000SW+ Installazione Funzionamento e manutenzione - Pagina 5
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Installation & Operation Manual
Circuit Board Connections Overview
POWER / LINE IN
110-120V AC Power should be supplied to the [POWER / LINE IN] terminal and fused at 3A.
GAS SOLENOID VALVE OUTPUT
110-120V AC electrical power supplied from the [VALVE OUT] connector using a 3-core cable can be
connected to a gas solenoid valve which can shut the gas supply on alarm status.
ELECTRIC CONTACTOR OUTPUT
110-120V AC electrical power supplied from the [ELECTRIC CONTACTOR] connector using a 3-core
cable can be connected to a contactor.
WATER VALVE OUTPUT
110-120V AC electrical power supplied from the [WATER VALVE] connector using a 3-core cable can be
connected to a contactor. Refer to your water valve manual for more information and wiring!
BMS OUT
Connections are available on the board for Building Management Systems.
[NO Normally Open] [COM Common] [NC Normally Closed] These are volt free connections.
This is a relay that changes state in alarm or when the gas is on/off and can be used in conjunction with
the 12V DC output and other external relays that affect other devices and controls such as purge fans
and audible alarms etc. See section; Switch Settings - for BMS options
EM REMOTE / FIRE PANEL
Connections for remote emergency shut-off buttons or integrated with a fire alarm to close the gas
supply automatically in the event of a fire. This is linked out as a factory setting.
Remote emergency shut-off buttons should be dry contact and wired to the using a plenum security
cable, white, 18/2 (18AWG 2 conductor), stranded, CMP or similar.
Rev: 15
08-22
Merlin 1000SW+i
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