Product Description; Design And Components Of The Rotex E-Solarunit - Rotex E-Solar Unit ESU 509 Installation And Maintenance Instructions Manual

2 Product description

2.1

Design and components of the ROTEX E-SolarUnit

2
1 Cold water connection (1" male) *
2 Hot water connection (1" male) *
3 Hot water charging heat exchanger flow connection
4 Hot water charging heat exchanger return
connection
5 Heating flow connection (1" female)
6 Heating return connection (1" female)
7 Solaris flow connection (1" swivel nut)
8 Solaris return connection (Tr 32x3 male)
with valve set
9 Connection for compensating line (Tr 32x3 male)
with valve set
10 Top filling connection (alternative: safety overflow
connection to front – Tr 32x3 male)
11 Immersion sleeve for storage tank sensor
12 Immersion sleeve for Solaris return flow
temperature sensor
13 Safety overflow connection to rear (Tr 32x3 male)
with hose nipple
Fig. 2-1 Components of the ROTEX E-SolarUnit
8
Product description
15 Heat exchanger for heating (electric heat generator
with integrated safety temperature limiters
in heat-insulated housing)
18 Heat exchanger for solar heating support (HU-WT)
21 Circulation pump for heating
22 3-way diverter valve
23 Flow temperature sensor
24 Return flow temperature sensor
25 Safety valve – Connection for blow-off pipe (3/4"
female)
26 Option for connecting membrane expansion tank
(3/4" male)
27 Bypass
28 Boiler control panel, see Chapter 5, page 23
29 ROTEX Regelung ALPHA
Chapter 6, page 32
30 Heating pressure gauge
31 Protective cover
32 Lock screws for protective cover
33 KFE cock for filling the heating system (1/2" male)
34 Automatic vent valve
35 Ball stopcock
36 Type plate
37 Terminal box for supply terminals
38 Electronic fill level probe
39 Connecting cable for external temperature sensor
40 Safety temperature limiter heat generator flow
41 ThermowellSTB
Safety devices
+
23R, see
* The connection is ready for installation of a gravity brake, which can
be ordered separately.
Gravity brake 16 50 70
FA ROTEX ESU - 07/2008