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Installation, Operation & Maintenance Manual
CO2-X
Wiring your CO2-X
MAINS POWER CONNECTION
100-240V AC Single phase mains power should be supplied to the
[POWER/LINE IN] connector (Live & Neutral).
The CO2-X can also be powered from 12-24V supply – see [12-24V POWER INPUT].
GAS VALVE INPUT
It is possible for your CO2-X to receive a signal from a gas solenoid valve via Live & Neutral terminals on
our merlin panels when wired parallel.
To receive a signal you must ensure that you configure your CO2-X to Natural or Mechanical ventilation
mode – see settings for ventilation types.
When gas is supplied/in use – the CO2-X will receive a signal from the gas valve and display the [GAS IN
USE] message. The CO2-X will configure itself automatically to operate in 'Kitchen' mode until the gas
supply is turned off – see section 'Settings' for configuration.
This feature is recommended for teaching areas with gas appliances such as laboratories and food
technology rooms.
CO2 ALARM (Not a mains output)
This terminal can also connect to a building management system
(BMS) or to a Merlin panel to send an alarm signal upon alarm
levels of CO
. This terminal can also switch the Live (energise/ de-
2
energise) a gas valve upon alarm levels of carbon dioxide.
Rev 3 11-20
6
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