Merlin 3000S
USER GUIDE
Rev: 07 05-19
7
14.
CO2 MONITOR
This is a linked out connection [
] and can be wired to a Merlin Carbon Dioxide (CO
2
) monitor.
If no CO
2
Monitor is being used - leave the link in between the “
” terminal.
15.
GAS METER
Before any connections are made, please refer to the Gas Meter operation manual.
This is a low voltage connection with a varied
pulse input to drive fans on an automatic
varied speed based on real-time gas usage.
TBX – Turbine Gas Meter has two types of pulse output – 'unit pulse' and 'high density pulse'.
The Merlin 3000S requires a high density pulse wire.
16.
FIRE PANEL
The terminal for fire alarms is detailed on the circuit board as [FIRE PANEL]. These connections are
linked out as a factory setting.
Fire alarms should be volt free using two-core cable- normally closed and open upon activation
17.
12VDC OUT
This is a permanent 12V DC output (max loading 150mA/~2W) when there is power at the panel.
This is normally used to power a Merlin PM2+ Current Monitor (supplied separately).
