A.O. Smith 110 Boiler User Manual


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Installation and Service Manual Upsilon-Series
38
9.1 Operationalstatus
- Standby Standby. Boiler is ready for operation.
- Vent.Phase Ventilation stage
- Ignitionphase Ignition stage
- BurnerlitCH Burner active for heating
- BurnerlitDHW Burner active for hot water
- CHT>Tset Burner off on account of too high ow temperature CH
- OverrunCH Overrun time pump over CH
- OverrunDHW Overrun time pump over DHW
- Service Boiler needs maintenance. Contact installer
- Frost Burner active for frost protection
9.2 Operation
The keyboard consists of a logical key allocation for menu control, conrmation, and
correction and emission measurement.
Value increase / change
Emission measurement Return/correction
Backward Forward
Reset* Conrm selection
Value decrease / change
* Reset only functions in case of an Error or Message. If reset is rapidly pressed over a
short period of time, the device will block completely. Only loss of power (power switch)
will restart the device completely. Recommendation: First identify the fault by nding the
fault code in the fault-code list in the problem-shooting chapter and solve the problem.
The main switch is located on the right hand side of the keyboard. This switch controls
the 230V power supply (L and N).
Standby
R
OK
-
+
R
OK
-
+
0-10Volt
Open-
Therm
On/Off
T3
DHW
230V~
AC
230V
out
230V~
AC
230V
out
L
N
L
N
L
N
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6
Error
signal
Heat
demand
signal
LPG
On/Off
1 2 3 4 5 6 7 8 9 10 11 12 13 14
T10
General
purpose
LWCO
NN
L
230V Pump / 3-WV.
L
230V Pump P3230V out230V~ AC
T4
Out
8X.44.08.00 / 05.11
L
N
230V DHW pump
Bus
8X.44.09.00 / 05.11
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