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Pipe installation
Pipe installation must be carried out in accordance with
current norms and directives.
The water heater must be fitted with the necessary
valves, such as a safety valve, shut-off valve and non-re-
turn valve.
The water heater must be provided with a mixer valve,
which limits the temperature of outgoing hot water to
60 °C. If this valve is not fitted, some other measure must
be taken to prevent the risk of scalding.
Internal support bushes must be fitted when a plastic or
annealed copper pipe is used. An overflow pipe must be
routed from the safety valve to a suitable drain. The
overflow pipe must be the same size as the safety valve.
Route the overflow pipe from the safety valve, sloping
along its entire length and ensure that it is frost proof.
The mouth of the overflow pipe must be visible and not
placed close to electrical components.
Connection
XL3 Cold water Ø
XL4 Hot water Ø
XL36 Supply line Ø
Heat pump
Connecting to heat pump
The heat pump supply and return are connected to VPD.
Supply line hp
Return line hp
Cold water
Schematic diagram
VPD 150, 300
The enclosed kit includes suitable connectors that can
be used for the installation.
XL3
mm
28
mm
22
mm
22
Install the T-coupling in position (XL3) (blue) as illus-
■
trated.
Connect the return line from the heat pump to the
■
angled connection on the T-coupling. Install the sup-
plied non-return valve on this pipe.
Install a shut-off valve on the incoming cold water
■
pipe.
Hot water
The safety valve must have a maximum 10.0 bar
■
opening pressure and be installed on the incoming
cold water line. The entire length of the overflow water
pipe from the safety valves must be inclined, to prevent
water pockets and must also be frost-free.
Connect the incoming cold water to the T-coupling.
■
Angled couplings, 22/15 mm, installed on connections
■
(XL4) and (XL36) as illustrated.
Connect the supply line from the heat pump to pos
■
(XL36) (white) on the water heater section.
Hot water connection to pos (XL4) (red) on the water
■
heater.
XL36
XL4
Chapter 3 |
For the Installer
9
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