INsTALLATIoN
safety
56
| WWK 221-301 electronic
www.stiebel-eltron.com
INsTALLATIoN
7. Safety
Only a qualified contractor should carry out installation, commis-
sioning, maintenance and repair of the appliance.
7.1 General safety instructions
We guarantee trouble-free function and operational reliability only
if original accessories and spare parts intended for the appliance
are used.
7.2 Instructions, standards and regulations
Note
Observe all applicable national and regional regulations
and instructions.
Take note of the appliance type plate and chapter "Specification".
8. Appliance description
The thermal output of the heat pump depends on the temperature
of the intake air and the selected set DHW temperature.
The DHW sizing of the appliance should consider the appliance
output dependent on the temperature of the intake air and the
resulting heat-up time.
If the heating output is low and the "runtime-dependent rapid
heat-up" function is enabled, DHW heating is backed up by the
electric emergency/booster heater. Note that DHW heating with
the electric emergency/booster heater uses more power than just
using the heat pump. To prevent excessive power consumption,
disable the function in summer and in spring/autumn if possible.
The function is deactivated in the delivered condition.
8.1 Standard delivery
Note
Accessories are located in the corners of the packaging.
Remove the accessories before disposing of the pack-
aging.
D
00000
46
70
1
1
1 Corners of the packaging
The following are delivered with the appliance:
- Condensate drain bend
- For the "Cold water inlet" and "DHW outlet" connections: 2
insulated screw fittings comprising a flanged pipe, a gasket,
a union nut and an insulating sleeve
- 2 reducers (DN 200 to DN 160) for the side air intake and dis-
charge connections
8.2 Required accessories
Various safety assemblies are available that are selected according
to supply pressure. These type-tested safety assemblies protect
the appliance against unacceptable excess pressure.
8.3 Additional accessories
- Condensate pump (if the condensate cannot be drained off
with a naturally occurring fall)
- Accessories set for diverting the air flow routed horizontally
on site in a vertical direction (DN 160). This enables a vertical
air routing for the air intake and/or air discharge.
- Air duct accessories such as insulated flexible tubing, folded
spiral-seam tube and profiles, wall ducts with weather grille
9. Preparation
9.1 Transport
!
CAUTION Injury
f
f
Observe the weight of the appliance.
f
f
Use suitable transport aids (e.g. sack truck) and
enough personnel for transportation.
!
Material losses
The appliance has a high centre of gravity and low over-
turning moment.
f
f
Safeguard the appliance against falling over.
f
f
Only set the appliance down on an even base.
!
Material losses
The appliance casing is not designed to withstand strong
forces. Incorrect handling can lead to material losses of
considerable extent.
f
f
Observe the information on the packaging.
Only remove the packaging shortly before installation.
Where possible, do not unpack the appliance until it has arrived
in the installation room. For transport and handling leave the ap-
pliance in its packaging and on the pallet. This enables brief hori-
zontal transport and provides places to hold onto during transport.
If the appliance has to be unpacked before transportation, we
recommend using a sack truck. Pad the contact surfaces to avoid
damaging the appliance.
Secure the appliance to the sack truck using a strap. Pad the areas
between the strap and the appliance, and avoid overtightening the
strap. Where stair wells are narrow, you can carry the appliance
by the handles on the sack truck and the foot of the appliance.