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Hydro Unit
Installation Manual
8
START UP AND CONFIGURATION
Set the DIP switches and function codes.
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
3
External P2 pump operation
Continuous operation
OFF
ON
Interlocked with the
internal pump
synchronized with P1.
SW11
Description
Switch mode
Default setting
1
Internal backup heater operation
Operate
OFF
ON
Not operate
2
Hot water cylinder heater operation Operate
OFF
ON
Not operate
3
Booster heater operation
Operate
OFF
ON
Not operate
SW12
Description
Switch mode
Default setting
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
1
Type of motorized 3-way valve
• 2-wire spring return type
• 3-wire SPST type
OFF
ON
3-wire SPDT type
2
Interlocking with boiler
Invalid
OFF
ON
Valid
3
Auto restart for power failure
Auto restart
OFF
ON
Manual restart
4
–
SW02
Description
Default setting
4
Room thermostat
Invalid
OFF
ON
Valid
ON
OFF
SW10
SW11
SW12
SW13
1
2
3
4
ON
1
2
3
4
ON
1
2
3
4
ON
1
2
3
4
ON
▼
Fig. 8-01
31-EN
Summary of Contents for ESTIA HWS-1402XWHM3-E
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