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7
Piping diagrams
7 - 1
Piping Diagrams
EGSAH-D9W / EGSAX-D9W / EGSAX-D9WG
Water out connection ø 22mm
1
Water in connection ø 22mm
2
Tank out connection ø 22mm
3
Tank in connection ø 22mm
4
Shut-off valve
5
Safety valve
6
Automatic air purge valve
7
Drain valve
8
Pump
9
Plate heat exchanger
10
Flow sensor
11
Shut-off valve
12
Backup heater
13
3-way valve
14
4-way valve
15
Low pressure sensor
16
High pressure sensor
17
High pressure switch
18
Brine side
8
35
9
T>
12
Field installed
5
36
T>
5
12
28
29
Ground loop
Muffler
19
Compressor
20
Check valve
21
Service port
22
Space heating water pressure sensor
23
Rectifier
24
Heat sink
25
Filter
26
Electronic expansion valve
27
Brine in connection ø 28mm
28
Brine out connection ø 28mm
29
Recirculation connection 3/4" (G) (female)
31
Refrigerant
32
20
21
17
18
19
T>
15
33
T>
16
Refrigerant flow
Heating
Cooling
10
22
26
24
C
B
D
27
25
A
39
34
T>
T>
26
22
Thermistor (discharge)
32
R2T (A7P) -
Thermistor (suction compressor)
33
R3T (A7P) -
2-phase sensor (Tx)
34
R4T (A7P) -
Entering brine temperature
35
R5T (A7P) -
Leaving brine temperature
36
R6T (A7P) -
Outlet water heat exchanger thermistor
37
R1T (A1P) -
Outlet water backup heater thermistor
38
R2T (A1P) -
Refrigerant temperature sensor (liquid)
39
R3T (A1P) -
Inlet water thermistor
40
R4T (A1P) -
Tank thermistor
41
R5T (A1P) -
Tank thermistor
42
R8T (A1P) -
Space heating circuit
1
Water side
5
37
12
38
T>
13
T>
14
41
T>
31
42
T>
10
6
23
9
40
T>
11
12
8
Screw connection
Brazed connection
Quick coupling
Daikin Altherma ground source heat pump
2
Field installed
5
7
Domestic hot water
3
4
3D121963B
EGSAH-D9W / EGSAX-D9W / EGSAX-D9WG
7
31
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