Commissioning; Filling Water To The System - Maktek OMEGA LCD Installation And Service Manual

Electric combi boiler

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4. COMMISSIONING

a) Make sure that the automatic air vent valve on the circulation pump is loose.

b) Turn on the filling valve and fill water until the pressure reaches 1.5 bars on the LCD

screen.

c) Use the manual air vent on top of the boiler to extract the air trapped inside the heat

exchanger. Close the manual air vent when bubble free water comes out of the drain hose.

d) Vent the air inside each radiator until bubble free water comes out, using the air vents on

the radiators.

e) Check the water pressure on the LCD screen. If it decreased, turn on the filling valve to

reach 1.5bars.

f) Repeat steps c,d and e until there is no air left in the system and the 1.5 bar is shown on

the LCD screen.

Manuel Air Vent

CAUTION!

Before making the primary circuit connections to the boiler, make sure that the primary circuit

is clean. The primary circuit must be flushed and and particules inside the installation must

be cleaned so that these particules do not damage the boiler during operation. This is

especially important when using an old existing primary circuit installation. Any failures and

damages to the boiler cuased by dirty primary circuit installiation is out of manufacturer's

warranty.

Water Pressure Indicator

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