Filling The System; Checking The Water Quality And Adjusting The Pressure Gauge; Filling The Hot Water Heat Exchanger; Filling The Storage Tank - Rotex GCU compact 315 Installation And Maintenance Instructions Manual

This adjustment must be appropriately labelled with a suit-
able burner settings sticker and an entry on the settings
type plate (fig. 3-2 / fig. 3-5, item 33).
4 x Set-up and installation

4.9 Filling the system

Fill the ROTEX GCU compact only after completion of all instal-
lation work in the order shown below.
4.9.1 Checking the water quality and adjusting the
pressure gauge
● Comply with the instructions for water connection (see
chap. 4.6) and water quality (see chap. 1.2.5).
● Adjust the mechanical manometer (install on the building side
in accordance with chap. 4.6.2 or temporarily installed with
filling hose).
● Rotate the pressure gauge glass so that the minimum
pressure mark equates to the system height + 2 m (1 m
water column corresponds to 0.1 bar).

4.9.2 Filling the hot water heat exchanger

● Open the shutoff valve for the cold water supply pipe.
● Open the hot water tap connections so that the draw-off
volume can be set as high as possible.
● Once water has been discharged from the tap connections do
not interrupt the cold water flow; this will ensure that the heat
exchanger will be fully vented and that any impurities or
residue will be discharged.

4.9.3 Filling the storage tank

See chap. 9.2.4.

4.9.4 Filling the heating system

See chap. 9.2.5.