5
Basic Connections
SEC-K
L N
3 amp
fused spur
230v
Gas Solenoid
230v
EM Stop
Buttons,
TT-70c Series
connected
Pressure Sender unit
mounts on to the body
of the gas valve
(Required)
Medem
Addressable
Gas detectors
Connect multiple
detector in parallel
fans
Medem CM2
2 channel current
Monitor
6 core low voltage
1 x + - 12v
fans
Fan speed
controls
Fan Supply
6 core low voltage cable
Earth Connections not shown
Fan Interlock Connections
See page six
Earth Connections not shown
Requires a volt
free NC
contact
0-10v output for con-
necting to a fan speed
controller
230 v
Where using 3 phase fans
interlock on a single phase
