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Marsh Industries MAHLA Installation Guide
This alarm must be installed and maintained by
a suitably qualified electrician in accordance
with current legislation.
Please read this complete document before
installation or maintenance.
The alarm has been tested to IP65 and must
be connected to a suitably protected and fused
circuit to protect from electrical shock.
The panel access key should always be
removed when not in use for maintenance.
Please ensure that this document remains with
the maintainer and householder as appropriate.
For service and support, contact Marsh
Industries on 01933 654582.
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Summary of Contents for Marsh MAHLA
- Page 1 Marsh Industries MAHLA Installation Guide This alarm must be installed and maintained by a suitably qualified electrician in accordance with current legislation. Please read this complete document before installation or maintenance. The alarm has been tested to IP65 and must be connected to a suitably protected and fused circuit to protect from electrical shock.
- Page 2 Marsh Industries MAHLA Installation Guide About your alarm. The MAHLA alarm will activate the beacon and sounder if there is a loss of power to the alarm or the float switch indicates a high level. The button switch inside the panel door can silence the sounder but while there is an alarm condition, the beacon will continue to flash until power is restored or the high level is rectified.
- Page 3 Marsh Industries MAHLA Installation Guide Using the key provided, unlock the panel door and press the two door latches and open the door.
- Page 4 Marsh Industries MAHLA Installation Guide For ease of installation, remove the panel door using a screwdriver or similar in the hinge slots, moving the hinge out of the enclosure.
- Page 5 Marsh Industries MAHLA Installation Guide Fasten the enclosure to a wall with suitable fixings(not supplied) using the pass-throughs indicated. Be careful not to distort the enclosure by over tightening or fastening to an uneven surface. This device is not present in the MAHLA...
- Page 6 Marsh Industries MAHLA Installation Guide Connect the float switch to the circuit board, entering through the middle gland. Tighten the gland. These are normally black and brown wires, normally open switch. Connections are not polarity sensitive so can be wired to either of the...
- Page 7 Marsh Industries MAHLA Installation Guide Remove the cable insulation from the end of the black battery wire and connect the wire to the circuit board by pressing down the orange tab to open the connection point. Press the test button on the circuit board to test the sounder and beacon.
- Page 8 Marsh Industries MAHLA Installation Guide Connect the push button switch on the panel front to the connector indicated.
- Page 9 Marsh Industries MAHLA Installation Guide Fasten the lid to the enclosure using the 4 plastic screws. Ensure the button on the panel is in the down / pressed position. This will enable the sounder and is used to silence the...
- Page 10 Marsh Industries MAHLA Installation Guide Re-fit the panel door by sliding the hinges into position until they click home.
- Page 11 Marsh Industries MAHLA Installation Guide Close the panel door with the key in the vertical position, pressing firmly above and below the latches as indicated. Lock the door and remove the key. Plug in the alarm and check that the LED on...
- Page 12 Marsh Industries MAHLA Installation Guide Completing the installation. Check that the sounder and beacon function by raising the float switch to activate the alarm. If there is no sounder activation check the position of the button switch inside the alarm door.