Installation introduction
Charge of the refrigerant gas
English
17
The product can be installed with refrigerant connection between internal and external
unit up to 20 m. The declared performances are referred to refrigerant connection pipes
of 5 m; different types of installation may lead to different values of performance.
In case you are adding R134a gas in the circuit, will be needed:
- R134a refrigerant tank. In this case it is necessary a charge attack 1/2 UNF 20 threads
per inch and corresponding seal;
- Electronic scale for refrigerant charging with sensitivity 10g.
- Connection pipes over 10 m need to increase the refrigerant(30g / m)
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During installation:
a) Carry out the procedure of passage “a”to the passage “f”;
b) Connect the manometer on the low pressure service valve, and connect the
refrigerant cylinder to the center tap of the the manometer. Open the container of the
refrigerant then open the main valve cap pressure gauge and adjust the needle valve until
you hear the coolant leak, and release the pin and close the valve of the the pipe;
c) Keep under control the weight of the refrigerant tank through the electronic scale;
d) Open the ball valve and to flow the refrigerant gradually;
e) After reaching the mass of gas to be loaded close the tap;
f) Remove the manometer and charging hose from the valve;
g) Fully open taps 2 and 3 way valves (D), turn the product in heat pump mode with the
detector and check for leaks of refrigerant;
h) Remove the container from the manifold and replace all the plugs (E).
Already installed:
a) Connect the manometer on the low pressure service valve, and connect the
refrigerant cylinder to the center tap of the the manometer. Open the container of the
refrigerant then open the main valve cap pressure gauge and adjust the needle valve until
you hear the coolant leak, and release the pin and close the valve of the the pipe;
b) Keep under control the weight of the refrigerant tank through the electronic scale;
c) Open the ball valve and to flow the refrigerant gradually;
d) After reaching the mass of gas to be loaded close the tap;
e) Remove the manometer and charging hose from the valve;
f) with the detector and check for leaks of refrigerant;
g) Remove the container from the manifold and replace all the plugs (E).
h) Once finished the time for the “Charge”, verify proper product functioning.
