STIEBEL ELTRON HSBB 3 S Bedienung Und Installation Seite 36

INSTALLATION
Power supply
12.7.1 Electric emergency/booster heater
General
Appliance Effect of the electric emergency/booster heater
function
Mono energet- If the heat pump undershoots the dual mode point, the elec-
ic operation tric emergency/booster heater safeguards both the heating
operation and the delivery of high DHW temperatures.
Emergency Should the heat pump suffer a fault that prevents its contin-
mode ued operation, the heating output will be covered by the elec-
tric emergency/booster heater.
Power connection 3-phase HSBB 3
X3 Electric emergency/booster heater (DHC)
L1, L2, L3, N, PE
Connected load
2.9 kW
5.9 kW
8.8 kW
Power connection single phase only HSBB 3 S
X3 Electric emergency/booster heater (DHC)
L, L, N, N, PE
Connected load
3.0 kW
3.2 kW
6.2 kW
36 | HSBB 3
Terminal assignment
L1 PE
L1 L2 PE
L1 L2 L3 PE
Terminal assignment
L N PE
L N PE
L L N PE
Control voltage
X4 Control voltage (control outputs)
DHW DHW charging pump and N (X25), PE
Zirk. DHW circulation pump N (X25), PE
2.WEWW 2nd DHW heat generator and N (X25), PE
M(Z) Mixer close
M(A) Mixer open
MKP Mixer circuit pump and N (X25), PE
HKP Heating circuit pump and N (X25), PE
KUE/Solar Solar circuit pump / cooling output
secondHS Heat source 2 and N (X25), PE
secondHS Heat source 2 and N (X25), PE
EVU Enable signal
L (mains)
X24 PE
X25 N
Material losses
!
f Only connect energy efficient circulation pumps ap- f
proved by us to the pump connections.
If you are using energy efficient circulation pumps that
have not been approved by us, use a relay with a break-
ing capacity of at least 10 A/250 V AC or our WPM-RBS
relay set.
www.stiebel-eltron.com