A Bridge
B Power supply
Press the orange push-button to allow the wire to be correctly inserted in
the connector and locked.
Output control
Tab.27
Power supply
Setting for the pa
rameter HP029
Bridge
Stage 1 output
Parameter HP034
Stage 2 output
Parameter HP035
Total output for
stages 1+2
Single phase
2 = 2 power levels
between C2 and
C1
2 kW
4 kW
6 kW
1 = 1 power level
2 kW
not used
2 kW
Three phase
2 = 2 power levels
between C3 and
C2
4 kW
8 kW
12 kW
between C2 and
C1
8 kW
4 kW
12 kW
Remove bridge
4 kW
4 kW
8 kW
1 = 1 power level
between C2 and
C1
8 kW
not used
8 kW
Remove bridge
4 kW
not used
4 kW
6.8
Connecting options
1. Connect the options according to the configuration of the installation
to the X12 or X28 connector on the EHC–05 PCB in the indoor
module.
Tab.28 Connecting the options to X28
X28 connector
Description
T dhw 1
Optional: Connection of a second domestic hot
water sensor for domestic hot water tanks with
two sensors. Top sensor.
T dhw 2
Connection of the main domestic hot water
sensor:
for tanks designed with a single sensor,
for domestic hot water tanks with two sen
sors. Bottom sensor.
T out
Not used
Tab.29 Connecting the options to X12
X12 connector
Description
R-Bus terminals
Connection of the Mago connected thermostat,
an on/off thermostat (ON/OFF) or a modulating
thermostat (R-Bus)
BL1 IN and BL2 IN Connection of multi-function dry contact inputs
Fig.48
Three-phase connection
4-8 kW
400V 3N~
MW
-1
0
0
1
2
2
5
-1
B
A
4-12 kW
400V 3N~
8-12 kW
400V 3N~
Fig.49
MW-1001206-1
R-Bus
T dhw 1
T dhw 2
T out
BL1 IN
BL2 IN
So+ So-
Condensation
X15
X26
X2
X25
X13 X6
X21
X24
X12
X9
X4
X5
X19
X17
X16
X10
X23
X30
X18
X1
X20
EHC-05
X7
X8
X27
X22
}
X28
}
6 Installation
7701563 - v02 - 22052018
iHPI
43
