INSTALLATION
Electrical connection
www.stiebel-eltron.com
WPE-I H 400 Premium |
57
EN
GL
ISH
f
f
Mark any changes made on the wiring diagram in the appli-
ance.
f
f
Deactivate the factory-set function on the programming unit.
f
f
Activate the new function on the programming unit.
11.6 Electrical connection
Note
In order to prevent failures in the electromagnetic field,
attach the supplied split ferrite outside the connection
area on the bus cable.
Note
If the power cables do not fit through the cable entries,
use the supplied cable entries which can be cut to size.
11.6.1 Routing power cables
f
f
Route the power cables from above through the cable entries
and into the appliance.
WPE-I 33 H 400 Premium | WPE-I 44 H 400 Premium
f
f
Remove the cable entries in the control panel.
f
f
Route the power cables through the apertures in the control
panel.
f
f
Feed the cable entries over the power cables.
f
f
Push the cable entries securely back into the apertures.
WPE-I 59 H 400 Premium | WPE-I 87 H 400 Premium
f
f
Route the power cables through the cable entries in the con-
trol panel.
11.6.2 Power supply
X1
Heat pump
L1, L2, L3, N, PE
f
f
Connect the power cable to the terminal.
11.6.3 Additional components
Note
f
f
If you want to install a mixer, use a mixer with 24 V
control voltage.
f
f
Connect the power cables for the other components accord-
ing to the wiring diagrams (see chapter “Specification / Wir-
ing diagram” and “Appendix”).
11.7 Sensor installation
Outside temperature sensor
The temperature sensors have a significant influence on the func-
tion of your heating system. Therefore ensure sensors are correctly
seated and well insulated.
When the sensor cable is laid in a pipe, the pipe must be sealed
to prevent escaping air.
Install the outside temperature sensor on a north or north-eastern
wall. Minimum clearances: 2.5 m above the ground, and 1 m to
the side of windows and doors. In high buildings, install the out-
side temperature sensor between the second and third floor. The
outside temperature sensor should be freely exposed to the ele-
ments but not placed in direct sunlight. Never mount the outside
temperature sensor above windows, doors or air ducts. Do not
install the outside temperature sensor on reflective metal panels.
Immersion / contact sensor
This sensor is required when using a mixer circuit.
Sensor resistance values
Temperature in °C
Pt1000 sensor
Resistance in Ω
- 30
882
- 20
922
-10
961
0
1000
10
1039
20
1078
25
1097
30
1117
40
1155
50
1194
60
1232
70
1271
80
1309
90
1347
100
1385
110
1423
120
1461
11.8 High limit safety cut-out for STB-FB area
heating system
!
Material losses
In order to prevent excessively high flow temperatures
in the area heating system causing damage in the event
of a fault, install a high limit safety cut-out to limit the
system temperature.
11.9 Internet Service Gateway ISG
The Internet Service Gateway ISG enables you to operate the heat
pump within your local home network and via the internet when
you are away. The ISG is not supplied with power by the heat
pump.
f
f
Observe the ISG operating instructions.
11.10 Termination at both ends of the accessories and
building management system communication
network
Termination of the communication network is required if a Modbus
connection is used. Through the use of jumpers, termination en-
sures that the receiver gets the maximum signal strength through
adjustment of the wiring impedance.
The jumpers on the BM card in the appliance are factory-fitted.
f
f
Remove the relevant jumper if the appliance is no longer in-
stalled at one end of the communication network.
