3
08/03/2018
Main features
SafeAir CM
Connections to panel: marked on board.
1. Live & Neutral 230 volts supply from 3amp switched fuse spur
2. 230 volts out to gas solenoid valve
3. Earth connection terminals
4. BMS to indicate, high alarm, gas on, EM stop, low alarm. (Using
No14
AX1 & 2 )
00 = Gas On
01 = Fan Fault
10 = EM Stop & High Alarm
11 = Unused
5. Remote emergency stop buttons SELV, connect in series multiple buttons (requires a N/C circuit)
6. Power connections for detectors, Methane, LPG, CO, CO2, Oxygen, Temperature
7. Comms connections for detectors, Methane, LPG, CO, CO2, Oxygen, Temperature
9. 12 volt power
10. Fan A interlock for PD switches.
11. Fan B interlock for PD switches.
12. Fan A current monitor (CT) connection.
13. Fan B current monitor (CT) connection.
14. Fill & prove time for gas pressure proving & AUX relay settings (
see No4
).
15. Set Fan A to use either PD switch (
No10
) or Current Monitor (CT) (
No12
)
16. Lift valve button, opens the gas valve only whilst the button is continuously pressed, for commissioning purposes.
17. Display gas pressures on the LCD screen
18. Learn detectors button, press once only when all detectors are connected and powered. Also “learn Trip Current” when
pressed in conjunction with “No.19 Fan Comm” see page 4 for more details
19. Fan comm button: Displays the “Fan Current Trip level” this is the minimum fan current draw allowed before the system
will indicate that the fans aren’t running. (Default 35mA).
FAN A
FAN B
1
2
12
11
16
17
13
14
3
4
5
6
7
9
10
18
19
15
20
