STIEBEL ELTRON LWZ 404 SOL - Connection Examples

52 | LWZ304-404 SOL www.stiebel-eltron.com
INSTALLATION
Specication
11.3 Connection examples
Example 1: Without power-OFF periods
3/N/PE~50Hz 400V 3/N/PE~50Hz 400V
1/N/PE ~ 50Hz 230V
26_04_01_0599
3
2
1
4
Supply from low tariff electricity meter
1 Heat pump
2 Electric emergency/booster heater
3 Fan/control unit
4 Underfloor heating thermostat (option) or safety equipment
terminal for oven / fireplace
Example 2: Blocking time for electric emergency/booster
heater
M
1
L1 L2 L3 N PEL1 L2 L3 N
1L
2L
3L
N
EP
1L
2L
3L
EP
N
3/N/PE ~ 50Hz 400V
3/N/PE ~ 50Hz 400V
1/N/PE ~ 50Hz 230V
L1
UVE
PE
5
26_04_01_0600
3
2
1
4
Supply from low tariff electricity meter
5
1 Heat pump
2 Electric emergency/booster heater
3 Fan/control unit
4 Underfloor heating thermostat (option) or safety equipment
terminal for oven / fireplace
5 Time switch for power-OFF periods
Example 3: Blocking time for electric emergency/booster
heater and heat pump
M
L1 L2 L3 N PE
1
L1
L2
L3
N
PE
L1
L2
L3
PE
N
3/N/PE~50Hz 400V
1/N/PE ~ 50Hz 230V
EVU
26_04_01_0601
3
2
1
4
Supply from low tariff electricity meter
5
1 Heat pump
2 Electric emergency/booster heater
3 Fan/control unit
4 Underfloor heating thermostat (option) or safety equipment
terminal for oven / fireplace
5 Time switch for power-OFF periods