2 x Product description
9
BA ROTEX GSU - 09/2007
A Gas condensing boiler
B Hot water layered storage tank
C Unpressurised storage tank water
D Hot water zone
G RPS control and pump unit (Solaris accessories)
1 Cold water
1)
2 Hot water
1)
3 Hot water charge changer flow
4 Hot water charge changer return flow
5 Heating flow (warm)
6 Heating return flow (cold)
7 Solaris flow
8 Solaris return flow with valve insert
9 Flue gas
10 Air supply
11 Immersion sleeve for storage tank sensor and
Solaris return flow temperature sensor
12 Condensate overflow connection
12a Top filling connection (alternatively: condensate
overflow connection to the front)
13 Condensate drain hose (by others)
14 Condensate pipe
15 Heating heat exchanger (boiler body)
16 Drinking water heat exchanger (TW-WT)
17 Heat exchanger for storage tank charging (SL-WT)
20 Solaris flow layering tube
21 Heating circulation pump
22 Gas fan burner
23 3-way diverting valve
24 Inflow temperature sensor
25 Return flow temperature sensor
26 Flue gas temperature sensor (accessory)
27 Safety valve
28 Connection for diaphragm expansion tank
Safety devices
1) Prepares for the installation of gravity brakes to
avoid cooling losses.
Figure 2-3 Schematic construction of GSU 535 and of GSU 320
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