–33–
Hydro Unit
Installation Manual
12
1
Used when a hot water cylinder is connected to
system.
OFF = hot water cylinder connected;
ON = hot water cylinder not connected
OFF
2
Used to activate Zone 1 Operation.
OFF = Zone 1 activated;
ON = Zone 1 de-activated
OFF
3
Used to activate Zone 2 Operation.
OFF = Zone 2 de-activated;
ON = Zone activated
OFF
4 Not Used – – – – –
13
1
Used to determine type of 3 way diverting valve
used on system.
OFF = 2 wire/spring return or SPST type valve;
ON = SPDT type valve
OFF
2
Used to activate external boiler output.
OFF = external boiler output de-activated;
ON = external boiler output activated
OFF
3
Used to activate system auto restart after power
failure.
OFF = auto restart activated;
ON = auto restart de-activated
OFF
4 Not Used OFF – – – –
SW No. DIP No. Description Default
After
Commissioning
Change 1 Change 2 Change 3
33-EN
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