STIEBEL ELTRON WPE-I 04 HKW 230 Premium, Administrator'S Manual For Operation And Installation

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Electrical connection
18 | WPE-I H(K)W 230 Premium www.stiebel-eltron.com
10. Electrical connection
10.1 General
WARNING Electrocution
f Before working on the appliance, isolate it from the
power supply at the control panel.
Note
The leakage current of this appliance can be > 3.5 mA.
Note
In conjunction with the WPM heat pump manager, use
the HSM mixer servomotor.
Connection work must only be carried out by a qualified contractor
and in accordance with these instructions.
You must have permission to connect the appliance from the rel-
evant power supply utility (PSU).
f See chapter "Preparation / Electrical installation".
10.2 Electrical connection
Note
f
Fill the heating system before making the electrical
connection (see chapter "Installation / Heating water
connection").
The terminals are located at the appliance control panel behind
the upper panel.
For all connections, use appropriate cables in accordance with
local regulations.
f
Route all cables and sensor leads through the entries provid-
ed in the back panel (see chapter "Specification / Dimensions
and connections").
You must be able to open the control panel during maintenance
and repair work (see chapter "Installation / Venting the heating
system").
f
Ensure an adequate length of cables and sensor leads.
f Route the cables and leads through the cable ties.
f Route cables and leads through the strain relief fittings.
f
Check that the strain relief fittings are working as intended.
10.2.1 Compressor and electric emergency/booster heater
Appliance
function
Effect of the electric emergency/booster heater
Mono energet-
ic operation
If the dual mode point is undershot, the electric emergency/
booster heater safeguards both the heating operation and the
provision of high DHW temperatures.
Emergency
mode
If the heat pump shuts down due to a fault, the heating output
is covered by the electric emergency/booster heater.
You can choose between two connection options. The compressor
connection remains single-phase.
Connection option Connection type
A separate connections for compressor and
emergency/booster heater
B connection for compressor and emergency/
booster heater using a 5-core cable
Connection option A (230 V)
f
Connect the cables according to the following diagram.
D
0000
100
60
6
XD1 Compressor (inverter)
L, N, PE
XD1 Electric emergency/booster heater (NHZ)
L', L", N', N", PE
XD3 Control voltage
L, N, PE
f
Route cables and leads through the strain relief fittings.
Check that the strain relief fittings are working as intended.
If no voltage is applied to the power supply utility enable signal,
the heat pump will not start.
f If no ripple control receiver is fitted, install a jumper be-
tween EVU1 and EVU2.
Connection option B (400 V)
f Connect the cables according to the following diagram.
D
00000
76
87
6
XD1 Compressor (inverter)
Electric emergency/booster heater (NHZ)
L1, L2, L3, N, PE
XD3 Control voltage
L, N, PE
f Connect the N, N’, and N” connections with a jumper.
f Route cables and leads through the strain relief fittings.
Check that the strain relief fittings are working as intended.