9 Repair Thermo Top Evo
908
9.7 Water connection piece
A distinction is made between two different retaining
plates. Variant A - without locking and Variant B - with lock-
ing of connection piece on retaining plate. If water connec-
tion pieces or the retaining plate of Variant B are/is
defective, then the spare parts kit of Variant A must be
ordered and installed.
NOTE
Never mount the retaining plate and the water connection
pieces when the heater has been installed.
Fig. 923 Comparison of retaining plates without (above)
and with (below) lock
Fig. 924 Retaining plate for installing water connection
piece
9.7.1 Installing water connection piece Variant
A - without lock
1. The contact surfaces of the O-rings in the heat
exchanger must be clean and must not have any dam-
age.
2. Lay new O-rings (A5) into openings of heat exchanger.
3. Fix water connection piece (A4) in place in retaining
plate (A3) and position as assembled unit in heat
exchanger (W1). Align water connection piece for
installation case.
4. Guide screw into hole and screw on with 7.5 Nm.
IMPORTANT
When screwing on the retaining plate with the water con-
nection piece, as well as the sensors, do not re-cut the
thread several times. The screw must be carefully inserted in
the existing threads and screwed in by hand.
A4
A3
A5
W1
Visit www.butlertechnik.com for more technical information and downloads.
To Next Page
Loading...
