6.4
Connection for the iMPI heat pump with hydraulic back-up with a direct circuit
Fig.34
iMPI with a direct circuit, a TXM connected thermostat and a hydraulic back-up
BUS
2
7
3
5
230V
50Hz
MW-5000758-2
4
1
6
230V
50Hz
1 Outdoor unit
2 Connected thermostat
3 Indoor module
4 Direct underfloor heating connection kit
5 Floor-standing gas/oil-fired boiler
6 Filter and isolation valve kit
6.4.1
Connect and configure the iMPI heat pump with hydraulic
back-up with a direct circuit
Fig.35
X23
X4
X12
X28
1
3
8
X5
4
2
3
230V
50Hz
MW-5000767-2
5
230V
50Hz
1
5
2
4
8
EHC-04
1 Outdoor temperature sensor
2 Hydraulic back-up pump
3 Thermostat
4 ON/OFF contact for the hydraulic back-up
5 Safety thermostat for underfloor heating flow
8 Outdoor unit bus connection
6 Connecting diagrams
42
AWHP-2 iMPI
7685645 - v04 - 07032018