STIEBEL ELTRON HM Trend - Electrical components and sensors

10 | HM (S)| HM(S) Trend www.stiebel-eltron.com
INSTALLATION
Power supply
10.1 Electric emergency/booster heater
General
Appliance
function
Effect of the electric emergency/booster heater
Mono energetic
operation
If the heat pump undershoots the dual mode point, the elec-
tric emergency/booster heater safeguards both the heating
operation and the delivery of high DHW temperatures.
Emergency
mode
Should the heat pump suffer a fault that prevents its contin-
ued operation, the heating output will be covered by the elec-
tric emergency/booster heater.
Electrical connection 3 phase HM | HM Trend
D0000041479
XD02 Electric emergency/booster heater (DHC)
L1, L2, L3, N, PE
Connected load Terminal assignment
2.9 kW L1 N PE
5.9 kW L1 L2 N PE
8.8 kW L1 L2 L3 N PE
Power connection 1 phase only HM (S) | HM (S) Trend
1 2
1 2
D0000041480
XD02 Electric emergency/booster heater (DHC)
L1, L2, N1, N2, PE
Connected load Terminal assignment
2.9 kW L1 N1 PE
2.9 kW L2 N2 PE
5.9 kW L1 L2 N1 N2 PE
10.2 Control voltage
D0000041478
XD1.1 Power supply (Netz)
L, 2, N, PE
XD1.2 Power supply utility (EVU)
L, L'