Installation & Location; Mounting; Positioning; Fixed Unit Location Recommendation - S&S Northern Merlin User Manual

Merlin Gas Detectors
2
Installation & Location
2.1

Mounting

The detector is designed to be wall mounted. Removing the back plate gives access to the
circuit board.
Do not attempt to remove the Circuit Board!
This will void any warranty.
Do not obstruct the vents located on the detector.
2.2

Positioning

 Natural Gas – Typically 300mm from the ceiling.
 Hydrogen Gas – Typically 300mm from the ceiling.
 LPG – Low level – Typically below 300mm from ground level.
 Carbon Monoxide: 1700mm from ground level.
2.3

Fixed Unit Location Recommendation

Take in to account the design of the air flow within the space. Positioning CO detectors near
draft will greatly diminish their reliability. Multiple detectors may be required to adequately
protect the space.
2.4

Installation

 Power 12v max – Signal Dry Contact
 Coverage – 10m² (110ft²)
 Avoid drafts – Avoid high temperatures
 Wire multiple Detectors as per manufacturer's wiring instructions.
 Max # of detectors per zone is 3 (GDP2 2 Zones, GDP4 4 Zones, 1000 range 1 Zone)
2.5 Audible Alarm Switch
There is a switch on the circuit board (unmarked) that can silence the alarm when switched to
OFF.
The default setting for audible alarm is: ON
Rev: 12 Date: 21-03-19
USER GUIDE
4