
5.4
Installation with hydraulic back-up and one direct circuit
Fig.22
BUS
2
7
3
5
230V
50Hz
MW-5000758-3
4
1
230V
50Hz
6
1 Outdoor unit
2 Connected thermostat
3 Indoor module
4 Wiring kit for direct underfloor heating
5 Floor-standing gas/oil-fired boiler
6 Filter and stop valve kit
5.4.1
Connect and configure the SYSMGR PBS heat pump
with hydraulic back-up with a direct circuit
Fig.23
X23
X4
X12
X28
1
3
8
X5
4
2
3
230V
50Hz
MW-5000767-3
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
5 Connecting diagrams and configuration
7706696 - v04 - 11102018
AWHP-2 PBS-i
31