Fig.20
-
Pay special attention to the proper installation of the tubes into the prepared holes in the wall to avoid
damaging them.
-
Make sure that the locking bolts (M6x25) are properly tightened with the maximum force of 5 Nm, so
that the fitting sits on the installation template with its entire rear surface. Otherwise, there is a risk of
increased noise and incorrect function of the unit.
3.2.8.2. Water heater variant(XR1-xxx-ECV1...)
-
Leave the unit inserted on the installation pins at a distance of approximately 100 mm from the wall.
-
Connect flexible hoses ended with an external G ¾" thread on the mixing valve (not included in the
delivery). To distinguish the inlet and outlet of the heating water, the ends of the flexible hoses are
marked with red (hot water inlet) and blue (return) dots.
-
To ensure a flexible hose against turning when tightening, use size 27 wrench. This prevents the flexible
hoses and outlets from the heat exchanger from turning, which can result in irreversible damage to the
hoses, fitting, and water exchanger.
ATTACH THE UNIT TO THE INSTALLATION PINS USING M6x25
A BOLTS
TIGHTEN WITH APPROPRIATE STRENGTH – MAX 5 Nm
3
ATTACH HOSES TO VALVE AND TIGHTEN PROPERLY USING SUITABLE TOOLS
1
30
Version 1 – GBR(23/06/2021)
D-502-0152
Fig.21
-
After connecting the water exchanger to the heating system, a pressure test of the unit connection is
recommended.
-
The tests must be carried out by a person qualified in this field with knowledge of the applicable
regulations and standards of the country concerned.
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