Tests And Inspection; System Vacuum; Filling The System - Olimpia splendid UNICO TWIN MASTER Hinweise Für Die Verwendung Und Pflege

- look in the documentation for an adhesive sheet with 2 labels. Detach the bottom label and stick it near
the charge and/or restore point.
- Clearly note the amount of coolant loaded on the coolant label using indelible ink.
- in the box marked 1, write the quantity of gas established in the technical data (kg).
- remove the transparent label that is left on the upper part of the adhesive sheet and stick it on top of
the label previously affixed close to the filling point.
- Do not let the fluorinated gas escape.
- Make sure that the fluorinated gas is never released into the atmosphere during installation, maintenance
and disposal.
- Should a gas leak occur, it must be identified and rectified as soon as possible.
- Only qualified personnel shout carry out maintenance of this product.
- Any use of fluorinated gas in this product, for example during the movement by hand of the product or
the recharging of the gas, must be in accordance with regulation CE 842/2006 "on determined fluorinated
greenhouse gasses and any local laws in force".
- additional charging is not required at the installation stage.
- Do not exceed the charge indicated on the rating plate.

3.1 - Tests and inspection

after making all pipe connections, check the seal of the system:
- Unscrew the closing cap on the service coupling of the gas line.
- Connect a tank of anhydrous nitrogen to the coupling with a 5/16" connector and a pressure reducer.
- open the tap on the tank and pressure reducer and bring the pressure in the circuit to 3 bar; close the
tank.
- if after about 3 minutes the pressure does not drop, the circuit is in good working order and the pressure
can be raised to 15 bar by reopening the tank.
- Check again after 3 minutes that the pressure remains stable at 15 bar.
- for safety reasons apply a solution of soapy water to the connectors and check for the formation of
bubbles revealing leakage of gas.
- in case of a pressure drop, if the test with soapy water gives a negative result, pump r410a into the
circuit and find the leak with a leak detector. Since the circuit has no welds, the only place leaks can
occur is on the joints, in which case, tighten the nuts thoroughly or make new connections after flaring
the pipes again. repeat the seal test.

3.2 - System vacuum

after testing the seal, the system has to be placed under a vacuum to remove any impurities in it (air, nitrogen,
moisture).
- Use a vacuum pump with a capacity of 40 l/min (0,66 l/s) and connect it, by means of a hose with a 5/16"
connector to the service coupling of the gas line.
- lower the pressure in the circuit to the absolute value of 50 Pa for about 2 hours; if after that period the
setting of 50 Pa is not reached, it means there is a high level of moisture in the circuit or that there is a
leak.
Keep the vacuum pump in operation for another 3 hours.
After that time, if the value has still not been reached, it will be necessary to find the leak.
- after placing the system under a vacuum and cleaning it, disconnect the pump coupling while it is still
on.
- Close the gas line service coupling with its cap.

3.3 - Filling the system

open the closing cap so as to be able to access he tap of the intake line and that of the liquid supply and
fill the system with coolant.
EN - 20