Merlin PM2+
User Guide
Rev: 2 05-19
3
1
General Information
The Merlin PM2+ Current Monitor is a duel fan current monitor and is to be used in conjunction
with the Merlin systems: the unit can be used as an alternative to an air pressure differential
switch.
The PM2+ is designed for use with fans up to 18A running current (min 0.15A / 35W).
The PM2+ current monitor checks for a current running between the fan speed controller and
the fan and sends a signal to the Merlin gas interlock system dependant on whether or not the
fan is in operation.
It is recommended that the user reads this guide before using the system. Please do NOT
attempt to operate the unit until the contents of this document have been read and are
thoroughly understood.
1.1
Panel Mounting
The control panel is designed for surface mounting using 4 mounting screws. Removing the
cover on the panel gives access to the circuit board.
Important Warning Statements
Never ignore your device when in alarm.
This device requires a continual supply of electrical power – it will not work without power.
This device should not be used to substitute proper installation, use and/or maintenance of fuel burning
appliances including appropriate ventilation and exhaust systems.
Your product should reach you in perfect condition, if you suspect it is damaged, contact your supplier.
Information on waste disposal for consumers of electrical & electronic equipment. (EEE)
When this product has reached the end of its life it must be treated as Waste Electrical & Electronics
Equipment (WEEE). Any WEEE marked products must not be mixed with general household waste, but kept
separate for the treatment, recovery and recycling of the materials used.
Please contact your supplier or local authority for details of recycling schemes in your area.
