AGS Mini Merlin Installation Operation & Maintenance - Page 9

Browse online or download pdf Installation Operation & Maintenance for Gas Detectors AGS Mini Merlin. AGS Mini Merlin 20 pages. Ch4 co: dual gas detector methane & carbon monoxide
Also for AGS Mini Merlin: User Manual (16 pages), Installation & Operation Manual (16 pages)

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Installation, Operation & Maintenance

APPLIANCE LIMIT CIRCUIT

To connect both BMS to the safety limit circuit of an appliance - wire in series.

ADAPTABLE OUTPUTS

The mini-merlin can be used to effect external relays and contactors to disable multiple appliances when a

fault condition is detected. Multi-pole relays can interrupt power to electrical circuits controlling boiler,

valves and pumps.

Low voltage wiring is to be inserted into the external limit circuit of a gas appliance.

The diagram shows a 120VAC general purpose primary coil with two sets of switches, each with

Normally Open (NO) and Normally Closed (NC) contacts. These contacts are rated for up to 12A AFL.

They can be used to break a low or line volt limit circuit or completely remove power to an appliance.

Rev: 20 12-20

The device can be used to directly shut

down a gas appliance when a fault condition

is detected (gas leak) by wiring terminals of

one BMS into the low voltage safety limit

circuit of the appliance.

If dangerous levels of gas are detected or the mini-merlin

encounters a power failure, the circuit is opened,

disabling the appliance.

Multiple appliance limit switches can be wired in series.

Mini-Merlin