Function Of The 3-Way Switch Valves; Item - Daikin Altherma 3 H HT ECH2O Series Installation Manual

2 Product description

Item

Designation
8 Automatic vent valve
9 Storage tank (polypropyl-
ene, double-walled jacket
with PUR hard foam heat
insulation)
10 Filling and draining con-
nection or solar return
flow connection
11 Mount for solar controller
or handle
12 Heat exchanger (stain-
less steel) for domestic
hot water heating
13 Heat exchanger (stain-
less steel) for storage
tank charging or heating
support
14 Biv heat exchanger
(stainless steel) for char-
ging with external heat
generator (e.g. pressur-
ised solar system)
15 Connection for optional
electrical backup heater
EKBUxx
16 Solar inflow layering pipe 3UV
17 Fill level indicator (tank
water)
18 Optional: electric backup
heater (EKBUxx)
19 Sensor pocket for tank
temperature sensor t
DHW1
20 Pressure-free storage
water
21 Solar zone
22 Hot water zone
23 Safety overflow connec-
tion
24 Mount for handle
Tab. 2-1 Legend for Fig. 2-1 to
Installation manual
10
Item Designation
33 Status display
34 Ball valve (heating cir-
cuit)
35 Combined filling and
draining valve (heating
circuit)
37 Storage tank temperature
sensor
t
DHW1
38 Diaphragm expansion
vessel connection
39 Controller housing
41 EKSRPS4 Optional:
Solar control and pump
unit
3UVB 3-way switch valve (in-
1 ternal heat generator cir-
cuit)
3-way switch valve (hot
DHW water/heating)
DS Pressure sensor
FLS FlowSensor
t Inflow temperature
V
sensor
t Backup heater inflow
V, BH
temperature sensor
RoCon Controller control panel
+ B1
MAG Diaphragm expansion
vessel
FS Flow switch
Fig. 2-4
2.2 Function of the 3-way switch
valves
Fig. 2-5 Function of 3-way switch valve
Heat pump (indoor unit) with integrated heat accumulator
Daikin Altherma ETS(X/H)(B)-D
008.1448499_00 – 06/2019 – EN