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PYROGAS VARINO 65 - 300
We reserve the right to make changes to dimensions and construction 20 Edition 02.09.2015
© Copyright YGNIS AG CH-Ruswil
8. Commissioning the condensing unit
The condensing unit may only be commissioned by a specialist trained on the product.
In order to ensure successful commissioning of the unit, the following points must be guaranteed by the
electrician.
- The unit is installed hydraulically, electrically, on the gas and flue gas side and is ready for commissioning.
With regard to the correct function of the O
2
sensor, it is particularly important to ensure that
- the condensation drain line does not have a double siphon and the line does not sag,
- the unit is electrically connected and integrated so that it will remain connected to the main even when no
heat is required, thereby guaranteeing that the O
2
sensor will be heated.
- A complete equipotential bonding must be guaranteed.
- The boiler room must be clean, free from dust and be able to be locked.
- All material and equipment which does not belong to the boiler room, must be removed.
- A fresh air supply to the boiler room must be ensured when doors are closed.
- The hydraulic system must be purged.
- The connection pressure of the water must be within the range defined in the "Technical data".
- If subsequent supply is necessary, then the water should be slowly fed to the filling and draining pipes in
order to avoid pressure surges.
- A leakage test of the gas line must have been carried out.
- The connection pressure of the gas line at the unit connection must be the value required by the table
"Technical data".
- The connection of the flue gas line to the flue gas pipe must be leak-tight for the flue gas and condensate.
- The internal siphon of the unit in the condensate drain must be filled with water.
- If the condensing unit is supplied with a condensate neutralisation unit, then this must be prepared in
accordance with separate installation and operating instructions.
- It must be possible to provide maximum heating capacity to the heating system for at least 30 minutes, since
the self-calibration of the unit that is running at this time does not allow any interruption.
After ensuring the above-mentioned points, the unit is ready for commissioning by a specialist.
If the above mentioned conditions, guidelines or regulations have not been observed, the specialist can
refuse to commission the PYROGAS VARINO condensing unit. Temporary commissioning of the
condensing unit (e.g. during construction phases) which leaves out certain conditions must be expressly
approved by the manufacturer.
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