Hydraulic Connection Diagram; Identifying The Pcb Used - Baxi EH784 Manual Del Usuario

en
1 Reversal valve and domestic hot water sensor
1 1 .2

Hydraulic connection diagram

Fig.24
1
EH112
Tab.7
Marker Description
1 Outdoor module
2 Indoor module
3 Safety valve
7 Automatic air vent
9 Isolation valve
11 Heating pump
16 Expansion vessel
18 Heating circuit filling (France: with disconnector de­
pending on regulations)
21 Outside temperature sensor
28 Domestic cold water inlet
29 Pressure reducer
30 Safety unit calibrated to 7 bar
44 65 °C safety thermostat
1.3

Identifying the PCB used

24
21
133
44
52
117
B
9
50
18
BUS
Depending on the PCB used, there are two ways to install this kit.
2
16
7
3
65
11
EH146
AB
EH 61
9
M
147
EH784
A
9
EH149
EH142
Marker Description
5 5 0 Disconnector
5 5 2 Differential valve
6 6 5 Heating circuit with mixing valve, heating circuit
which may be at low temperature (underfloor heat­
ing or radiators)
1 1 17 Motorised reversal valve
1 1 33 Programmable digital room thermostat
1 1 47 400 µm hydraulic filter (mandatory)
E E H61 400 µm hydraulic filter + isolation valve
EH112 Floor installation base
E E H142 Refrigeration connection kit 1/2"- 1/4" - length 10 m
E E H146 Adapter fitting 1/2"- 1/4" to 5/8"- 3/8"
E E H149 Hydraulic connection kit for the heat pump and the
domestic hot water tank
E E H784 Reversal valve and domestic hot water sensor
230V ou 400V
50Hz
EH784
30
29
28
7687984 - v02 - 25012018
MW-1001121-1