3
Main features
SEC-K
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.
To contactor for isolating bench socket electricity supply
4.
5.
Earth connection terminals
6.
Remote emergency stop buttons SELV, connect in series multiple buttons (requires a N/C circuit)
7.
Extract fan interlock for current monitor (CM2M-K) or PD switches.
8.
Supply fan interlock for current monitor (CM2M-K) or PD switches.
9.
12 volt power for current monitor (CM2M-K)
10.
Pressure sender unit SELV and comm’s both through “A” & “B” terminals (2 wire) MUST BE FITTED
11.
Power connections for detectors, Methane, LPG, CO, CO2, Oxygen, Temperature
12.
Comms connections for detectors, Methane, LPG, CO, CO2, Oxygen, Temperature
13.
Fire alarm input signal (N/C contact required).
14.
0-10 volt output to fan speed controllers based on CO2 and temperature levels
15.
Two relays, for connection to a BMS to indicate, high alarm, gas on, EM stop, low alarm. (One selectable for each relay)
16.
OPTA=Over pressure check, will isolate gas supply if pressure exceeds 70 mbar
17.
Fill & prove time for gas pressure proving, see page 4.
18.
Timer adjustment for fan commissioning, allows timed period for gas installation commissioning.
19.
Auto stop timer to isolate gas after set length of time. Factory set for model & use
20.
CO2 alarm level adjustment depending on application. Factory set for model & use
21.
High pressure low cut out adjustment (
where high pressure sender unit is used 1 bar>
)
22.
Fan comm button, enables commissioning of the gas supply without fans running.
23.
Learn field device button, press once only when all detectors are connected and powered (verify with Blind button
B
).
24.
Jumper link to disable audible alarm sounder.
25.
Lift valve button, opens the gas valve only whilst the button is continuously pressed, for commissioning purposes.
17.
OPTL Enable/Disable the front panel “FANS” LED (link on to disable)
Power at 230
volts from a
3amp fused spur
26
