3
00244
Main features
SEC-Lg
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 (required)
3.
volts out to water supply isolation valve
5.
Earth connection terminals
6.
Remote emergency stop and thermal links, 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)
(Required)
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, outputs for connection to a BMS see page 4 for full details.
16.
OPTA=Over pressure check, will isolate gas supply if pressure exceeds 70 mbar
17.
Fill & prove time for gas pressure proving, see page 5.
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 (
when 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.
Selector switch to disable audible alarm sounder.
25.
Lift valve button, opens the gas valve only whilst the button is continuously pressed, for commissioning purposes.
26.
Fill/Prove Multiplier SW=X2 multiplies the prove time by 2, CPI=ACTV Can monitor position of a CPI switch on a gas valve when
used with a CPI pressure sender unit.
27.
OPTL Enable/Disable the front panel “FANS” LED (switch on to disable)
Power at 230
volts from a
3amp fused spur
17
26
24
27
1
2
3
5
7
6
8
9
10
11
12
13
14
15
16
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20
22
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25
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