EN - 21
E N
Pre-heats 1 stage + Post-heats 1 stage: 4 + 6 wires
Post-heats 1 stage: 6 wires
Post chauffe 2 étages : 8 fils
Hydraulic coil
Hydraulic 1: 5 wires
Machine terminal
block
Additional box connector
Notes
Inlet/Outlet
Xm 19 _ b-5
Xm 7 _ b-6
Remote temperature sensor
measurement.
Resistivity-response curve
Analogue inputs
Xm 19 _ b-6
Xm 7 _ b-7
Xm 21 _ b-2
Xm 7 _ b-10
24V supply
Xm 21 _ b-3
Xm 7 _ b-11
Xm 21 _ b-1
Xm 7 _ b-12
0 -10V coil valve control
Analogue output
Hydraulic 2: 5 wires
If there are several coils in the additional box, only connect the "last" temperature sensor to the air supply.
Machine
terminal block
Additional box
connector.
Pre-heats
Additional box
connector.
Post-heats
Notes
Inlet/Outlet
Xm 18 _ b-1
Xm 7 _ b-3
On/off control p
re-heats
24V AC
Digital outputs
Xm 18 _ b-2
Xm 7 _ b-2
Xm 18 _ b-3
Xm 7 _ b-3
On/off control p
ost-heats
24V AC
Xm 18 _ b-4
Xm 7 _ b-2
Xm 18 _ b-5
Xm 7 _ b-5
Electric heater safety thermostat return
Dry contact
Digital inputs
Xm 18 _ b-6
Xm 7 _ b-4
Xm 7 _ b-4
Xm 18 _ b-7
Xm 7 _ b-5
Xm 19 _ b-5
Xm 7 _ b-6
Remote temperature sensor measurement.
Resistivity-response curve
Analogue inputs
Xm 19 _ b-6
Xm 7 _ b-7
Machine
terminal block
Additional box connector
Notes
Inlet/Outlet
Xm 18 _ b-1
Xm 7 _ b-3
On/off control
24 VAC
Digital outputs
Xm 18 _ b-2
Xm 7 _ b-2
Xm 18 _ b-5
Xm 7 _ b-5
Electric heater safety thermostat return
Dry contact
Digital inputs
Xm 18 _ b-6
Xm 7 _ b-4
Xm 19 _ b-5
Xm 7 _ b-6
Remote temperature sensor measurement.
Resistivity-response curve
Analogue inputs
Xm 19 _ b-6
Xm 7 _ b-7
Machine
terminal block
Additional box connector
Notes
Inlet/Outlet
Xm 18 _ b-1
Xm 7 _ b-3
On/off control stage1
24 VAC
Digital outputs
Xm 18 _ b-2
Xm 7 _ b-2
Xm 18 _ b-3
Xm 7 _ b-1
On/off control stage2
24 VAC
Xm 18 _ b-4
Xm 7 _ b-2
Xm 18 _ b-5
Xm 7 _ b-5
Electric heater safety thermostat return
Digital inputs
Xm 18 _ b-6
Xm 7 _ b-4
Xm 19 _ b-5
Xm 7 _ b-6
Remote temperature sensor measurement.
Resistivity-response curve
Analogue inputs
Xm 19 _ b-6
Xm 7 _ b-7
Machine terminal
block
Additional box connector
Notes
Inlet/Outlet
Xm 19 _ b-5
Xm 7 _ b-6
Remote temperature sensor
measurement.
Resistivity-response curve
Analogue inputs
Xm 19 _ b-6
Xm 7 _ b-7
Xm 21 _ b-2
Xm 7 _ b-10
24V supply
Xm 21 _ b-3
Xm 7 _ b-11
Xm 21 _ b-4
Xm 7 _ b-12
0 -10V coil valve control
Analogue output