Installation Manual

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5.2.1.

Hydraulic diagram

VARIOMATIC

USE AND INSTALLATION MANUAL

Solar control  unit 

Solar panel

Chapter

5

page. 25

Solar  pump 

Thermal mixer

Safety valve 

High  temperature  direct circuit 

Safety valve

 

The diagram shows an example of a hydraulic connection equipped with an open expansion vessel

(obligatory), mixer valve and heat accumulator.

5.3. Cleaning the system

Connections MUST be easy to disconnect by means of swivel pipe unions. Fit suitable cut-off gate valves on the heating system piping.

Caution: A safety valve must be fitted on the system.

To prevent hazardous corrosion of the heating system and the formation of scaling and deposits, it is of the highest importance to wash the system prior to installation, in accordance with standard UNI-CTI 8065, using appropriate products such as Sentinel X300 (new systems), X400 and X800 (old systems) or Fernox

Cleaner F3.

Full instructions are provided with the products. However, for further details contact the manufacturer directly: SENTINEL PERFORMANCE SOLUTIONS LTD or FERNOX COOKSON ELECTRONICS.

After washing the system, you are advised to use inhibitors such as Sentinel X100 or Fernox Protector F1 to protect the system from corrosion and deposits.

Is it important to check the concentration of the inhibitor after each modification to the system and each maintenance check, according to the specifications provided by the manufacturers (relevant tests are available from retailers).

The outlet from the safety valve must be connected to a collection funnel to channel any discharge if servicing is carried out. If the heating system is at a higher level than the boiler, you must install cut-off cocks on the system flow/return pipes. These cocks are provided in the optional kits.

System installation procedure Technical dept. - All rights reserved - Reproduction prohibited