Bivalent Connection; Solar Connection - Panasonic SXC093E5 Série Manuel D'installation

10. Bivalent connection

Set if heat pump linked with boiler operation.
Connect the start signal of the boiler in boiler contact terminal (main PCB).
Set Bivalent connection to YES.
After that, please begin setting according to remote controller instruction.
Boiler icon will be displayed on remote controller top screen.
There are 3 different modes in the boiler operation. Movement of each modes are shown below.
1 Alternative (switch to boiler operation when drops below setting temperature)
2 Parallel (allow boiler operation when drops below setting temperature)
3 Advanced Parallel (able to slightly delay boiler operation time of parallel operation)
When the boiler operation is "ON", "boiler contact" is "ON", "_"(underscore) will be displayed below the boiler icon.
Please set target temperature of boiler to be the same as heat pump temperature.
When boiler temperature is higher than heat pump temperature, zone temperature cannot be achieved if mixing valve is not installed.
This product only allows one signal to control the boiler operation. Operation setting of boiler shall be responsible by installer.
Alternative mode
operate boiler only
-10°C (setting from remote controller)
Advanced Parallel mode
For heating
operate boiler and heat
pump simultaneously
-10°C (setting from remote controller)
Although heat pump operates
but water temperature does
not reach this temperature for
more than 30 mins (setting
from remote controller)
Boiler temp. ON Boiler temp. OFF
= Setting -8°C
(setting from
remote controller) remote controller)
In Advanced Parallel mode, setting for both heating and tank can
be made simultaneously. During operation of "Heating/Tank" mode,
when each time the mode is switched, the boiler output will be
reset to OFF. Please have good understanding on the boiler control
characteristic in order to select the optimal setting for the system.
11. External SW
Able to turn ON/OFF the operation by external switch.

12. Solar connection

Set when solar water heater is installed.
Setting include items below.
1 Set either buffer tank or DHW tank for connection with solar water heater.
2 Set temperature difference between solar panel thermistor and buffer tank or
DHW tank thermistor to operate the solar pump.
3 Set temperature difference between solar panel thermistor and buffer tank or
DHW tank thermistor to stop the solar pump.
4 Anti-freezing operation start temperature (please change setting based on usage of glycol.)
5 Solar pump stop operation when it exceeds high limit temperature (when tank temperature exceed designated temperature (70~90°C))
26
Initial setting: No
operate heat pump only
operate heat pump only
Outdoor temp.
AND
Circulation water temp.
Setting temp
= Setting -2°C
(setting from
Initial setting: No
Initial setting: No
Parallel mode
operate boiler and heat
pump simultaneously
Outdoor temp.
For DHW tank
operate boiler and heat
pump simultaneously
Tank temp.
Lowering
Tank
Boiling initial
temp.
temp.
Heat
30 min (setting from
pump
Boiler
System setup
Tank heater
Base pan heater
Alternative outdoor sensor
Bivalent connection
Select Confi rm
operate heat pump only
-10°C (setting from remote controller)
operate heat pump only
-10°C (setting from remote controller)
AND
If actual tank temp. does
not achieve the setting
temp. within 30min
Heat pump (setting from remote
thermo ON controller), the boiler
turn ON
remote control)
System setup
Base pan heater
Alternative outdoor sensor
Bivalent connection
External SW
Select Confi rm
System setup
Alternative outdoor sensor
Bivalent connection
External SW
Solar connection
Select Confi rm
17:26, Wed
Outdoor temp.
Outdoor temp.
When tank
temp. is
achieved, both
operations
stop
Tank setting
temp.
time
17:26, Wed
17:26, Wed