Rotex E-Solar Unit ESU 509, Инструкция по установке и обслуживанию

Страница: 54 / 72

8 Hydraulic connection
54
Company ROTEX ESU - 07/2008
Maintenance
Thermal and pressure expansion and the high flow rates in the heat exchangers cause limescale residue to peel away; this residue
is rinsed out and is not deposited. The limescale-causing components that are present in the water can only be released once, in
the water you use to fill the storage tank. Thanks to the smooth surface of the stainless steel corrugated pipe heat exchanger,
no limescale crust forms (no reduction in heat transfer performance over time).
No corrosion protection equipment is required (such as expendable anodes). This means that associated maintenance work,
e.g. changing the protective anodes or cleaning the storage tank, does not need to be carried out. During the yearly inspection
only the filling level is checked and refilled if needed (see Chapter 9).
8.3 Hydraulic system connection
8.3.1 Short designations used in connection diagrams
Tab. 8-1 Short designations used in hydraulic diagrams (1)
Tab. 8-2 Short designations used in hydraulic diagrams (2)
Short des. Meaning Comment Order no.
ROTEX ESU 509 E-SolarUnit with solar heating support ROTEX ESU 509 15 70 50 - 44
1 Cold water
2 Hot water
3 Heating flow
4 Heating return flow
P
K
Boiler circuit pump Included in the scope of delivery of the ROTEX ESU
UV1 3-way diverter valve Included in the scope of delivery of the ROTEX ESU
t
WW
Storage tank temperature sensor Included in the scope of delivery of the ROTEX ESU
t
V
Heating flow temperature sensor Included in the scope of delivery of the ROTEX ESU
t
R
Heating return flow temperature sensor Included in the scope of delivery of the ROTEX ESU
t
AU
External temperature sensor Included in the scope of delivery of the ROTEX ESU
SV Safety pressure relief valve Included in the scope of delivery of the ROTEX ESU
5 Mixer circuit Optional
AMK1 Mixer group Accessories 15 60 44
P
MI
Mixer circuit pump Included in the AMK1 scope of delivery
MI 3-way mixer with drive motor Included in the AMK1 scope of delivery
t
MI
Mixer circuit flow temperature sensor Accessories 15 60 62
7 Non-return valve, return flow inhibitor Provided by customer
8 Solar circuit Optional
SK High-performance flat solar panel Accessories
RPS3 Solaris control and pump unit Accessories 16 41 06 - 44
P
S1
Duty pump Included in the RPS3 scope of delivery
P
S2
Booster pump Included in the RPS3 scope of delivery
Short des. Meaning Comment Order no.
t
S, R
Solaris return flow temperature sensor Included in the RPS3 scope of delivery
t
S
Solaris storage tank temperature sensor Included in the RPS3 scope of delivery
t
S, V
Solaris flow temperature sensor Included in the RPS3 scope of delivery
t
K
Solaris panel temperature sensor
Included in the Connect AB panel connection set scope
of delivery
FLS Flow sensor Accessories 16 41 07
VS Scalding protection VTA 32 Accessories 15 60 15
ÜV Bypass valve Provided by customer
WE External heat generator (e. g. wood pellet boiler, heating pump) Provided by customer
P
WE
Pump for external heat generator circuit Provided by customer
t
WE
Temperature sensor for external heat generator Included in the SCS-TR scope of delivery
UV2 3-way diverter valve Accessories 15 60 34
SCS-TR Thermostat controller Accessories 16 41 30
Disconnecting the standard connection – UV1 and heating pump P
K
must be
taken out of the unit and reconnected outside it. Provided by customer