Notes on installation and operation
33
Greenstar – 6721822579 (2021/01)
Fig. 19 Hydraulics connection plate for heating boiler
ZBR...-3A (top view)
Fig. 20 Hydraulics connection plate for combi boiler
ZWB...-3A (front view)
[1]
Heating supply, R 1" NPT
[2]
DHW, R 3/4" NPT
[3]
Gas, R 3/4" NPT
[4]
Cold water, R 3/4" NPT
[5]
Heating return, R 1" NPT
Fig. 21 Hydraulics connection plate for combi boiler
ZWB...-3A (top view)
▶ Determine pipe size for the gas supply.
▶ To fill and drain the system, install a fill and drain valve at the lowest
point.
6.6
Mounting the appliance
NOTICE
Residue, metal shavings, and contaminants in the piping can
damage the appliance.
▶ Flush the piping thoroughly and completely to remove all residue.
▶ Follow the instructions with respect to water quality (
Chapter 6.1.1, page 29).
▶ Remove packaging, observing all notes and symbols.
▶ On the type plate, check the identification of the target country and
suitability for the gas type supplied by the local gas utility company
(
Removing the cover
The cover is secured with two screws against unintentional removal
(electrical safety).
▶ Always keep the cover secured with these screws.
▶ Undo screws (step 1).
▶ Lift strap (step 2) and remove cover toward the front (step 3).
Fig. 22 Remove the cover
Hanging the appliance
▶ Check that the gas type matches (
data plate).
▶ Remove the transport brackets.
▶ Place the gaskets on the pipe connections.
▶ Hang the appliance.
▶ Check the positioning of the gaskets on the pipe connections.
▶ Tighten the union nuts on the pipe connections.
=
=
1 31/32
"
(50 mm)
5 1/8"
(130 mm)
10 15/64"
(260 mm)
1 3/8
"
(35 mm)
6 720 641 933-15.1O
=
=
6 720 641 933-90.1O
1 3/16
"
(30 mm)
7 7/8"
(200 mm)
5
4
3
2
1
=
=
1 31/32
"
(50 mm)
5 1/8"
(130 mm)
10 15/64"
(260 mm)
1 3/8
"
(35 mm)
6 720 641 933-14.1O
1
3
6 720 641 933-96.2O
1
2