Toshiba HWS-G2601ENXR-E - Page 33

Domestic Hot Water Heat Pump Service Manual
32
The following schematic shows the electrical connections for the SG Ready operation
BLU
B (D-)
L
N
L
N
0V
0V
L
L
0V
0~10V Input
BT3
EB1
Energy Meter
Communication to
/ from power grid
SG2
SG1
0V
0V
0V
0V
0V
FM
BT2
BT1
0V
0V
L
N
PE
230VAC ~ 50Hz
0V
A (D+)
0V BLU
0~10V PWM
YEL
High pressure switch.
Compressor STOP when
Pd ≥ 2.0MPa
Solenoid valve.
Solenoid ON for 2 min
before compressor
starts and during
system defrost
BRN
BLK
N
BLU
BLK
BRN
BRN
BLU
#2
TB1: DC/AC Inverter
BU: Energy meter
E1-2-3: Electric loads
WG1: Heat pump power supply
GC1: Photovoltaic function
input signal (0-10 VDC 0-
3 VDC, 4-20 mA).
____: represents the cables to
the switch inputs SG1 &
SG2
E1
E2
E3
BU - Smart Grid
Energy Meter
GC1
WG1
TB1
From the Grid
SG1
SG2
TOSHIBA