Installation & Operation Manual Merlin 1000BH
Rev: 09 03-21
5
Auto Reset Switch
The panel has a built-in auto reset feature. There is a dipswitch located on the circuit board labelled [AUTO RESET].
This is factory set in the ‘Off’ position i.e. when power is restored after a power cut or loss, the panel has to be
restarted manually. When enabled, the system will restart automatically when power is restored and can be reset
following a fire alarm and when the alarm is cleared.
AUTO SWITCH
CONDITION
OFF
Panel has to be restarted manually following a power cut/loss and/or alarm.
ON
Panel will automatically restart when power is restored and can be reset remotely via a fire panel.
BMS Switch
The panel can be integrated with a BMS to make or break a circuit on gas on/gas off, (valve open or valve closed).
This will tell the BMS whether or not electrical power is being sent to the solenoid. There is a dipswitch located on
the circuit board labelled [BMS SEL]. This is factory set to ‘OFF’ position which signals the BMS on gas on/gas off.
When switched to ‘ON’, the system will only signal the BMS on a fault, i.e. gas detected, EM Stop pressed, etc.
BMS SWITCH
BMS SIGNAL
OFF
Gas on or off only.
ON
Error condition i.e. gas detected, emergency stop pressed.
Fill & Prove Time Switch
There are two switches located on the circuit board labelled [FILL TIME] and [PROVE TIME].
FILL TIME: Amount of time the gas valve opens to fill the gas line on power up or reset.
PROVE TIME: Amount of time the system tests the gas line for leaks on power up or reset.
FILL TIME
PROVE TIME
OFF
5 Seconds (Default)
OFF
30 Seconds (Default)
ON
10 Seconds
ON
50 Seconds
Once the settings are changed - remove power for 10 seconds.
General Specification
Model:
1000BH
Visual Indication
LED
Mains Electrical Power Input
100-240vac
Gas Solenoid Valve Output
100-240vac
Current Consumption
12W max (50mA) @ 120VAC
Internal Fuse
3.15A
Operating Temperature
-10 ~ 40°C 30-80% RH
Audible Alarm Buzzer dB
65 dB (300mm distance in quiet conditions)
Pressure Sensor Operating Pressure
0 -100mbar
Housing Material
Polylac PA-765
Compliance
CE / UKCA
O/All Dimensions (H x W x D) mm / inch
180 x 255 x 77 mm/ 7.08 x 10.03 x 3”
