Panasonic Aquarea WH-ADC0309J3E5 Planning And Installation Manual page 209

Menus
Menu
To select a bivalent connection
to allow an additional heat
source such as a boiler to heat-
up the buffer tank and domestic
hot water tank when heatpump
capacity is insufficient at low
outdoor temperature� The
bivalent feature can be set-up
either in alternative mode
(heatpump and boiler operate
alternately), or in parallel
mode (both heatpump and
boiler operate simultaneously),
or in advance parallel mode
(heatpump operates and boiler
turns on for buffer-tank and/or
domestic hot water depending
on the control pattern setting
options)�
26
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
For installer
Default Setting
Yes Auto
-5 °C
Yes After selecting the outdoor temperature
Control pattern
Alternative / Parallel / Advanced parallel
• Select advanced parallel for bivalent use of
the tanks�
Control pattern Alternative
OFF
Control pattern Advanced parallel
Heat
• "Heat" implies Buffer Tank and "DHW"
implies Domestic Hot Water Tank�
Control pattern Advanced parallel Heat Yes
• Buffer Tank is activated only after selecting
"Yes"�
-8 °C
0:30
-2 °C
Setting Options / Display
Set outdoor
temperature for
turn ON Bivalent
connection�
Option to set external
pump either ON or
OFF during bivalent
operation� Set to ON
if system is simple
bivalent connection�
Selection of the tank
Set the temperature
threshold to start the
bivalent heat source�
Delay timer to start
the bivalent heat
source
(in hour and minutes)�
Set the temperature
threshold to stop the
bivalent heat source�
Appendix
8
209