22
Start up and Configuration
Setting DIP Switches on the Board in the
Hydro Unit
• Detach the front cover and the electric parts box cover of
the Hydro Unit.
• Set the DIP switches on the main board.
SW10 Description
Switch mode
Default setting Alternate
1
Pump P1 control during hot
water production
P1 stops when heat pump
stops (cylinder heater ON)
OFF ON
P1 continuous
operation
2
Pump P1 control using outside
air temperature
Normal Control OFF ON
P1 operation
controlled by outside
air temperature
3 External P2 pump operation
Continuous operation (P2
OFF when remote
controller OFF)
OFF ON
Interlocked with the
internal pump
synchronised with P1.
SW11 Description
Switch mode
Default setting Alternate
1
Internal backup heater
operation
Operate
OFF ON Not operate
2
Hot water cylinder heater
operation
Operate
OFF ON Not operate
3
Booster heater output
enabled/disabled
Enabled
OFF ON Disabled
SW12 Description
Switch mode
Default setting Alternate
1 Hot water supply operation Valid
OFF ON Invalid
2 Zone 1 operation Valid
OFF ON Invalid
3 Zone 2 operation Invalid
OFF ON Valid
SW13 Description
Switch mode
Default setting Alternate
1
3WV selection – 2 wire/SPST
or SPDT
• 2-wire spring return type
• 3-wire SPST type
OFF ON 3-wire SPDT type
2
Boiler output enabled /
disabled
Disabled
OFF ON Enabled
3 Auto restart for power failure Auto restart
OFF ON Manual restart
SW02 Description
Switch mode
Default setting Alternate
1 Boiler installation position Before 3 way valve OFF ON
After 3 way valve
(heating side)
4 Room thermostat input Invalid
OFF ON Valid
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