S&S Northern Merlin 1000S, Руководство пользователя, Страница: 4 / 12

Merlin 1000S
User Guide
Rev: 07 05-19
4
2
Circuit Board Terminals
2.1 POWER
A 110-240VAC electrical supply should be externally fused at 3A
and connected to the terminals marked [POWER LNE].
2.2
GAS VALVE
The 110-240VAC gas solenoid valve should be powered using
the terminals on the Merlin 1000S detailed [GAS VALVE LNE].
2.3 BMS OUT
Terminal connections are available on the circuit board for Building
Management systems etc.
Detailed on the circuit board as [BMS OUT - N/C, COM and N/O]
(Normally Closed / Common / Normally Open).
These are volt free connections.
This is a relay that changes state in alarm or when the gas is on/off and can be used in
conjunction with the 12vDC output and other external relays that affect other devices and
controls such as purge fans and audible alarms etc.
2.4
PRESSURE SENSOR
This terminal is connected to the gas pressure transducer as shown which
is then screwed into the downstream port on the gas solenoid valve.
Min Operating Pressure = 12mbar
Max Operating Pressure = 100mbar
ENSURE THIS IS SCREWED TO THE DOWNSTREAM PORT OF THE GAS SOLENOID VALVE.