INSTALLATION
Installation
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WPE-I H 400 Premium |
55
EN
GL
ISH
!
Material losses
The products of corrosion (e.g. rusty sludge) can set-
tle in the heating system components, which may re-
sult in a lower output or fault shutdowns due to reduced
cross-sections.
10.7 Filling the heating system
!
Material losses
Never switch on the power before filling the system.
10.7.1 Checks before filling
- Have the pipe connections been carried out according to the
water installation plans contained in the technical guides?
- Has the dirt trap been installed in the heating return?
- Has a diaphragm expansion vessel been installed?
- In heating systems with a sealed unvented diaphragm ex-
pansion vessel, have a safety valve and a pressure gauge
been installed?
- Has a fill connector with a non-return valve been installed?
10.7.2 Filling the heating system
!
Material losses
The pressure in the heating system must not exceed 6 bar.
f
f
Vent the heating system carefully.
WPE-I 33 H 400 Premium | WPE-I 44 H 400 Premium
D
00000
83
98
2
1
1 Drain
f
f
Fill the heating system via the drain.
f
f
Fully open all radiator valves.
f
f
Bleed all the radiators.
f
f
Fill the heating system via the drain.
f
f
Repeat this process until there is no more air left in the heat-
ing system.
f
f
Check the heating system for leaks.
WPE-I 59 H 400 Premium | WPE-I 87 H 400 Premium
D
00000
83
95
6
1
1 Drain
f
f
Fill the heating system via the drain.
f
f
Fully open all radiator valves.
f
f
Bleed all the radiators.
f
f
Fill the heating system via the drain.
f
f
Repeat this process until there is no more air left in the heat-
ing system.
f
f
Check the heating system for leaks.
10.8 DHW heating
For DHW heating, a DHW cylinder with an internal indirect coil is
required (see chapter “Installation / Appliance description / Ac-
cessories”).
f
f
Thoroughly flush the pipework before connecting the heat
pump. Foreign bodies, such as rust, sand and sealant, can
impair the operational reliability of the heat pump.
10.8.1 DHW heating without hot gas technology
f
f
Connect the heat pump DHW flow and heat pump DHW re-
turn from the DHW cylinder via a diverter valve to the heating
flow and heating return.
f
f
Observe the hydraulic diagrams in the technical guides.
10.8.2 DHW heating with hot gas technology
f
f
Connect the heat pump DHW flow and heat pump DHW re-
turn from the DHW cylinder to the hot gas DHW flow optional
and hot gas DHW return optional.
f
f
Observe the hydraulic diagrams in the technical guides.
10.9 Operation with buffer cylinder
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f
Install the supplied flow sensor on the buffer outlet.
f
f
Connect the flow sensor to the control panel.
