8
4.1 Checklist before installation
Use this checklist to verify that you have all the information you need from your
consultations. The following items are particularly important:
The customer has to provide for access to the affusion pipe as well as to the
water connections and electronic components.
A pre-wall installation has to be used if the control elements are mounted on
the wall. The installation of the connecting cable and concealed rough parts
for electronic control elements has to occur at the same time that the pre-
wall is closed.
Conform to fire protection regulations.
Calculate the piping according to DIN 1988-3*, EN 806-3*.
Calculate optimum choice of hot water storage device (e.g. according to
DIN 4708*, DIN 1988-20*).
A pressure reducing valve to be provided by the customer if needed
(installed after the water meter according to DIN 1988*.
A remote pressure balancing valve to be provided by the customer if the
water installation is not equipped with.
Main water filter (back-flushable) to be provided by the customer (e.g.
according to DIN 1988*).
Hot-water temperature range during operation 50-60
0
C.
Cold-water temperature range during operation 5-20
0
C.
Recommended water hardness: 5-6
0
e.
Flow pressure during operation: 2.5-4.0 bar.
Recommended flow pressure during operation: 3.0 bar
Maximum difference in flow pressure between hot and cold water: 1.0 bar.
Water supply (HW+CW) 2x DN15*-1/2"
A min. distance for a circulation pipe of 600 mm from the angle valves is
required if a hot-water circulation system is installed.
Leak test after rough installation according to EN 806-4*.
Pipe flushing after rough installation according to EN 806-4*.
Drain capacity: AW 0.9 l/sec., DN 50*
System partner/installer
Project
Date
Signature system partner/installer
