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INsTALLATIoN
Note on the operating and installation instructions
7.2
Insulating the brickwork
Ensure that no cold bridges form between the brickwork and the
hose connection panels or wall outlets. Cold bridges can result in
condensation forming in the brickwork.
f If necessary, fit suitable insulation between the brickwork
f
and the hose connection panels or wall outlets.
8.
Note on the operating and
installation instructions
Note
These operating and installation instructions describe
installation of the function module only.
f Observe the heat pump operating and installation
f
instructions.
f Please observe the instructions for the heat pump
f
manager.
Note
The chapters have been divided for the various heat
pumps, to provide a better overview. Chapters are named
after the heat pumps to which they refer.
The subsequent chapters apply to all heat pumps.
f For function module installation with the respective
f
heat pump, please go to the corresponding chapter.
www.stiebel-eltron.com
9.
WPL 19 IK | WPL 24 IK
9.1
Preparation
Note
The heat pump with function module is designed for in-
stallation in interiors, except in wet areas.
By installing the supplied pressure hoses to connect the function
module and the heat pump, you do not need to install any addi-
tional pressure hoses externally as anti-vibration mounts.
9.1.1 Electrical installation
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with national and regional regulations.
WARNING Electrocution
The connection to the power supply must be in the form
of a permanent connection. Ensure the appliance can be
separated from the power supply by an isolator that dis-
connects all poles with at least 3 mm contact separation.
This requirement can be met by using contactors, circuit
breakers, fuses/MCBs, etc.
Note
The specified voltage must match the mains voltage.
f Observe the type plate.
f
f Use cables with the relevant cross-sections. Observe the ap-
f
plicable national and regional regulations.
fuse protec-
Assignment
tion
16 A
3x C 16 A
Compressor
(3-phase)
3x B 16 A
Electric emergen-
cy/booster heater
1x B 16 A
Control
The electrical data is listed in chapter "Specification" in these oper-
ating and installation instructions and in the heat pump operating
and installation instructions. For the BUS cable you will need a
J-Y (St) 2x2x0.8 mm² cable.
Material losses
!
Provide separate fuses/MCBs for the three power circuits,
i.e. those of the appliance, the control unit and the elec-
tric emergency/booster heater.
Material losses
!
Provide common fuses/MCBs for the appliance control
cable and the heat pump manager.
Cable cross-section
2.5 mm²
1.5 mm² for only two live wires and rout-
ing on a wall or in an electrical conduit
on a wall.
2.5 mm²
2.5 mm²
1.5 mm²
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