Toshiba HWS-G2601ENXR-E - D26 Extra Function; B6 Solar

Domestic Hot Water Heat Pump Service Manual
28
7.11 D26 Extra Function (Only available with the deluxe DHW-HP)
There are 3 additional modes available for the Deluxe model DHW-HP, solar, floor heating and
cooling functions. These are activated from D26 Extra Function accessed within the Installer
menu.
NOTE: It is only possible to connect one of these options to the DHW-HP at any time.
Code
Set point
name
Description
Range
Factory
setting
D26
Extra function
The desired extra function is selected here. The possible functions are
Solar, Floor or Cooling. Once the function is activated, move to the function
menu and adjust the set point as desired.
OFF/
Solar/
Floor/
Cooling
OFF
7.11.01 B6 Solar
The Solar function allows the water to be heated up by the solar collector, activating a water pump
controlled by the extra relay (GP1).
The setup of the solar function is carried out using the function menu and B6 (Solar)
Code
Set point
name
Description
Range
Factory
setting
B6
Solar
The Solar function allows the water to be heated up by the solar collector,
activating a water pump controlled by the extra relay (GP1). The pump
starts when BT5 > BT3 + D24 (Solar DT min). The pump stops if the
temperature in the tank goes above D23 (Solar T max) or if BT5 is below
BT3.
OFF/ON
OFF
The following schematic shows the electrical connections for the Solar Thermal operation
BLU
B (D-)
L
N
L
N
0V
0V
L
L
0V
0~10V Input
BT3
EB1
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
Solar
Thermal
BT5
BT4