Piping Diagram: Indoor Unit - Daikin Altherma ERLQ004-006-008CA Reference Manual

14.5.2

Piping diagram: Indoor unit

Water side
Field installed
1
8
5
6
Field installed
2
7
4
7
3
8
1 Space heating – water OUT (additional/direct zone)
2 Space heating – water IN (additional/direct zone)
3 Space heating – water OUT (main/mixed zone)
4 Space heating – water IN (main/mixed zone)
5 Domestic hot water: hot water out
6 Domestic hot water: cold water in
7 Shut-off valve with drain/fill valve
8 Shut-off valve
9 Flow sensor
10 3-way valve (space heating/domestic hot water)
11 3-way valve (mixing valve for the main/mixed zone)
12 Water filter (additional/direct zone)
13 Water filter (main/mixed zone)
14 Pump (additional/direct zone)
15 Pump (main/mixed zone)
16 Backup heater
17 Safety valve
18 Plate heat exchanger
19 R1T – Outlet water heat exchanger thermistor
20 R2T – Outlet water backup heater thermistor
21 R3T – Thermistor (heat exchanger, liquid pipe)
22 R4T – Inlet water thermistor
23 R5T – Tank thermistor
24 R7T – Water outlet thermistor (main/mixed zone)
26 Expansion vessel
27 Air purge
28 Check valve
29 Capillary tube
Screw connection
Flare connection
Quick coupling
Brazed connection
ERLQ004~008CA + EHVZ04+08S18CB
Daikin Altherma – Low temperature split
4P401676-1 – 2015.02
A
10
M
27
12
29
28
15
13
20
9
16
R2T
23
R5T
17
26
14
28
11
24
M
R7T
A
14 Technical data
Refrigerant side
19
R1T
Refrigerant inlet
18
22
21
R4T R3T
Refrigerant outlet
3D096028-1A
Installer reference guide
77