Drazice AIR 3 Manual de operação e instalação - Página 19

Procurar online ou descarregar pdf Manual de operação e instalação para Ar condicionado Drazice AIR 3. Drazice AIR 3 19 páginas. Outdoor unit

How to Purge Air Tubes:

Unscrew and remove caps from 2 and 3-way valves.

(1)

Unscrew and remove cap from service valve.

(2)

Connect vacuum pump flexible hose to the service valve.

(3)

Start vacuum pump for 10-15 minutes until reaching a vacuum of 10 mm Hg absolutes.

(4)

With vacuum pump still running close the low-pressure knob on vacuum pump manifold.

(5)

Then stop the vacuum pump.

Open 2-way valve ,1/4 turn, then close it after 10 seconds. Check tightness of all joints

(6)

using liquid soap or an electronic leak detector.

Turn 2 and 3-way valves stem to fully close the valves. Disconnect the flexible vacuum

(7)

pump hose.

Replace and tighten all valve caps.

(8)

22-5-2019