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Circulation units
for solar thermal systems, with solar regulator

DeltaSol®

C+

28199

268-269 series

Function

Circulation units are used on the primary circuit of

solar thermal systems to control the temperature

in the hot water storage. The pump inside the

units is activated by the signal arriving from the

regulator. Moreover, safety and functional devices

for optimum control of the circuit are fitted in the

units.

They are available with flow and return connection

or with return connection only.

Some versions are also complete with the digital

regulator DeltaSol

®

C+ for solar thermal systems,

suitable for the operation and control of 9 different

types of solar thermal systems.

1

INDEX

Function

Product range

Technical specifications

Characteristic components

Installation
Filling the system

Commissioning

1

2

3

4

5

6

Components

7

Application diagrams

8

INSTALLATION AND COMMISSIONING MANUAL

Содержание DeltaSol 268050

Страница 1: ...devices for optimum control of the circuit are fitted in the units They are available with flow and return connection or with return connection only Some versions are also complete with the digital r...

Страница 2: ...ges with hydraulic leaks and damage to property and or personal injury Water temperatures exceeding 50 C may cause severe burns When installing commissioning and servicing take the necessary precautio...

Страница 3: ...ment 1 13 l min Flow rate indicator accuracy 10 Pressure gauge scale 0 10 bar Temperature gauge scale 0 160 C Connections 3 4 F Hose connection 3 4 M Fill drain connections with 15 mm hose connection...

Страница 4: ...mperature indication 13 Regulating keys 14 Temperature probe 15 Stainless steel probe pocket code 257004 optional 16 Hose connection only for versions with DeltaSol C regulator 1 2 3 4 5 8 9 11 10 16...

Страница 5: ...d in the assembly phase at the factory However when commissioning it is necessary to check the seal of the fittings performing a pressure test Make the electrical connections of the system as specifie...

Страница 6: ...e deaerated again both in the highest point and on the air separator on the versions where this is contemplated Once deaeration has been completed check the system pressure and if necessary restore to...

Страница 7: ...m every six months by using the deaerator A Full closing and opening of the valve The valve can be completely opened or closed A slot on the obturator stem indicates the status of the valve Correction...

Страница 8: ...e nor me ISPESL 0 2 4 6 8 10 bar CL 2 5 1 13 11 9 7 5 3 l min 1 13 11 9 7 5 3 l min 1 13 11 9 7 5 3 l min a Shut off valve Pump Air vent Expansion vessel Temperature gauge Safety relief valve Automati...

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