STIEBEL ELTRON WPL 33 - Electrical Installation; Buffer Cylinder; Transport; Siting and Connecting the Appliance

10 |WPL 33 www.stiebel-eltron.com
INSTALLATION
Installation
9.4 Electrical installation
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with national and regional regulations.
WARNING Electrocution
Only use a permanent connection to the power supply.
Ensure the appliance can be separated from the power
supply by an isolator that disconnects all poles with at
least 3 mm contact separation. This requirement can be
met with contactors, circuit breakers, fuses/MCBs, etc.
Note
The specified voltage must match the mains voltage.
 Observe the type plate.
Route cables with the following cross-sections in accordance with
the respective fuse rating:
MCB/fuse
rating
Conductor cross-section
16 A 2.5 mm²
1.5 mm² with only two live wires and routing on a wall or in an
electrical conduit on a wall.
The electrical data is provided in the chapter "Specification" . The
BUS cable requires a cable J-Y (St) 2x2x0.8mm².
!
Material losses
Provide separate fuses/MCBs for the three power circuits
of the appliance, the control unit and the electricemer-
gency/booster heater.
!
Material losses
Provide common fuses/MCBs for the control cable of the
appliance and the heat pump manager.
9.5 Buffer cylinder
A buffer cylinder is recommended to ensure trouble-free appliance
operation.
The buffer cylinder is not only installed to provide hydraulic sep-
aration of the flow rates in the heat pump circuit and the heating
circuit, but also as an energy source for defrosting.
10. Installation
10.1 Transport
 Pay attention to the appliance's centre of gravity when trans-
porting the appliance.
- The centre of gravity is in the area where the compressor is
located.
- Lifting slings for handling the standard appliance can be
hooked in anywhere on the bottom of the frame.
 Protect the appliance against heavy impact during transport.
- If the appliance needs to be tilted during transport only do so
for a short time on one of its longitudinal sides.
- The longer the appliance is tilted, the greater the distribution
of refrigerant oil in the system.
 Wait approximately 30minutes before starting the appliance
after it has been tilted.
10.2 Siting and connecting the appliance
Note
- Two screws are available at the top of the appliance
frame to secure the cover.
- In the frame at the bottom, one screw is available on
each side to secure the side panels.
Wind the sixscrews out of the appliance frame and keep them safe.
!
Material losses
After installing the heat pump, tighten the pipe fittings
on the pressure and inlet lines of the compressor with a
torque of 100Nm.
2
1
26_03_01_0670
1 Pressure line fittings
2 Suction line fittings