Installation & Operation Manual
Installation
Planning
The Merlin GDP2 is a two zone gas detection panel which can be used in many applications such as
factories, car parks, shopping centres and most commonly - boiler houses.
It can be used with up to eight Merlin gas detectors for monitoring and detecting gas including carbon
monoxide, liquid petroleum gas and methane.
The GDP2 system can be integrated with, but not limited to, a BMS (building management system) a fire
panel, external alarms and remote emergency shut-off buttons
Locations for detectors will vary based on the intended application and target gas, they should be
located near identified sources of a potential gas leaks/ pockets where hazardous gas could quickly
accumulate and areas of identified consequential risk.
The composition of the target gas and its density relative to air are used as the basis for any
recommended height of sensors.
Generally, the installation height of a sensor for a heavy gas (such as propane) would be close to the
lowest point in the area, and for a light gas (such as methane) would be close to the highest point in the
area. Any recommended heights may vary based on air flow and temperature conditions in addition to
the proposed application and location – this is particularly apparent with oxygen depletion sensors, and
the target gas that they are used for.
Please refer to your detector manual for important information regarding coverage, location and
positioning including areas and conditions to avoid.
Mounting
Unpack all the parts!
Designed for surface mounting, it must be installed by a licensed, insured contractor.
1. Carefully remove the front cover and board from the unit by unscrewing the four bolts located at
each corner. To do this – use the socket wrench provided.
2. Mark the four screw holes located on the back of the enclosure to the wall. Ensure the wall surface is
flat to prevent base distortion.
3. After executing the mounting and the connections – replace the front cover and insert the security
caps over the four bolts.
Take care when making connections to high voltage connectors!
Any damage attempting to remove the circuit board may void any warranty!
All Class 2 wiring is to be installed within flexible tubing to maintain segregation between circuits!
Wiring of different circuits shall be separated by means of routing, clamping or barrier!
ISSUE: 02 01-22 EN
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Merlin GDP2
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