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451903.66.07 · FD 9908
EN-5
BWP 20A
English
4.2 Set-Up
Remove the three M12 transport restraint screws fixing the
unit to the pallet.
Remove pallet and install the three M12 supporting feet (in
plastic bag attached to the cylinder barrel nipple).
Position the hot-water heat pump and align vertically by ad-
justing the device feet! Then tighten the counternuts on the
device feet.
5 Installation
5.1 Connecting the Water Pipes
The nominal pipe widths for the on-site sanitary installation must
be determined by taking into account the available water pres-
sure and any pressure drops expected to occur in the pipework.
Water installations must be executed according to DIN 1988 (see
Appendix “Hydraulic Block Diagram” – for example, a pressure
reducing valve must be used if water pipe pressure is impermis-
sibly high); also observe local regulations for domestic water in-
stallations!
Both rigid and flexible water pipes are possible. Observe corro-
sion behaviour of the pipework materials to prevent damage
caused by corrosion (see Section: Start-Up).
NOTE
º
Hot water, cold water and circulation connections:
These pipe nipples contain plastic inserts which serve to protect against
corrosion (in particular to the pipe nipple flange surfaces). These plastic
inserts remain in their positions after the water pipes have been installed.
ATTENTION!
!!
When installing the on-site pipework, ensure the pipes do not get
contaminated (flush pipes before connecting hot-water heat pump)!
5.2 Connecting the Condensed
Water Pipe
The condensed water hose is fed through the foil cladding at the
rear of the device. It should be routed so that the condensate
produced (during heat pump operation) can flow away freely.
NOTE
º
There is a pressureless seal valve which must
also be relocated
when
shortening the condensed water hose (valve can be easily removed and
replaced into the hose).
This valve is of special importance if longer air hoses are fitted to
the device or if a filter is installed on the exhaust air side. The
condensate should be drained into a siphon (see maintenance
information Cap. 7.1 on page 7).
5.3 Electrical Connection
The hot-water heat pump is wired ready for use; power is sup-
plied via connection cables plugged into an earthed wall socket
(~230 V, 50 Hz). This socket has to remain accessible after in-
stallation.
External heating element control
It is possible to optionally activate the heating element parallel to
the "heating element" switch on the operating panel of the hot
water heat pump via an external switch (e.g. timer). For this con-
nection, a floating contact on the external switchgear is required.
Furthermore, an cable (min. 2 x 1.0 mm
2
/ max. cable outside di-
ameter 10 mm) must be inserted into the device and attached to
connection 6 and 7 of terminal strip X5.
approx. 1.5 ** m
approx.
0.1 * m
approx. 2.0 * m
* Dimensions with spigot DN 125 (and bush) – air outlet side
** Space requirement with service clearance (recommended)
X5 (6 + 7) Connection for external heating element control (optional)
7
X5
7
6
PE
N
L
3
2
1
6
PE
N
X3
L
3
2
1
Summary of Contents for BWP 20A
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