Installation guide
Energy suppliers lock-out
The energy supplier is able via an exter-
nal signal (230V signal) to lock tempora-
rily the compressor.
Frost protection of the system and the
heating circulation pump remains in
operation. Depending on the contract
with the energy supplier the interrupti-
on can take place up to three times a
day with up to 2h per interruption.
• Signal connection: Connect on "HV IN
1" the signal of the energy supplier
(230V)
• At connection "HV-In 2" for energy
suppliers lock-out no signal is needed
• Parameter 17.1.0 = Input 1 (SG-Ready
1) to be adjusted
• Parameter 17.1.1 = Input 2 (SG-Rea-
dy_2) to be adjusted (if only 17.1.0 is
adjusted, a fault message is displayed
and the function is not active, be-
cause the used SG-Ready signal con-
sists of two signals
Low voltage terminal block of
internal unit
MOD. BUS
ANODE
TA 1
TA 2
SE
TNK
BUF
GND A+ B-
+24V
• Display: SG-Ready symbol is displayed
Function: If energy supplier lock-out is
active, at contact HV IN 1 we have 230V,
compressor and electrical resistance
are blocked, unless the signal stops. In
the meantime the allover power supply
(e.g. of the controller) remains.
High voltage terminal block of
internal unit
HV
HV
HV
OUT
BUS
IN
B T
AUX 1
IN 3
IN 1
IN 2
AUX 1
N
L
PM AUX
V 1
V 2
ST 1
N
L
N L
L L
230V
Power supply terminal block of internal unit
WH
XS - S 1ph
04M-RX
L
N
05M-RX
WH 07M-RX(1ph)
WH 07M-R (3ph)
M - L- XL 1Ph
WH 09M-R - 11M-R
L
L
L
N N
L
1
2
3
L
N
L
M - L- XL 3Ph
L
L
N N
1
2
3
N
73 / GB