A.O. Smith ADM - 60 Installation Manual | Page 49
Instruction manual ADM
49
gis
8
Status of the
appliance
8.1
Introduction
Topics covered in this chapter:
•
•
8.2
Operating modes
When running, the appliance has three basic
operating modes, namely:
•
ELECTRICALLY ISOLATED
In this mode, the appliance is off and no
components are live. The isolator (switch between
the appliance and the mains power supply) is off.
On the control panel:
-
the ON/OFF switch is at position 0;
-
the green light is dimmed.
•
OFF
In this mode, the frost protection is activated. The
isolator is at position I. On the control panel:
-
the ON/OFF switch is at position 0;
-
the green light is lit.
•
ON
In this mode, the appliance continuously responds
to the heat demand. On the control panel:
-
the ON/OFF switch is at position I;
-
the water temperature can be set using the
rotary knob of the control
thermostat (7.5 "Control thermostat");
-
the green light is lit.
8.3
Error conditions
If the water heater goes into an "error" condition, you
will be unable to draw hot water. The frost protection
will also be out of operation. These error conditions
are divided into three groups:
•
Lockout error from the flue gas thermostat
The safety (pushbutton) on the flue gas thermostat
in the draught diverter has been activated. After
removing the cause, the pushbutton (7.6 "Burner
control reset button") must be pressed to restart
the appliance.
•
Lockout error from the flue gas thermostat
When this happens, the red LED on the control
panel will be illuminated. The burner control is
locked out.
After eliminating the cause, the appliance must be
returned to service by pressing the reset
button (7.6 "Burner control reset button").
•
Blocking errors
You can recognise this condition from the fact that
the appliance does not start running even though
the water temperature is lower than the setting that
you have defined using the control
thermostat (7.5 "Control thermostat").
These errors disappear automatically once the
cause of the error has been removed, after which
the appliance resumes operation by itself.
The cause of the error cannot be seen on the control
panel. For a detailed overview of error conditions,
please refer to the error tables (11 "Troubleshooting").
If, as end-user, you find the appliance in an error
condition, you may attempt to restart the appliance by
pressing the reset button once. However, if the error
returns or occurs several times in a short time, you
must contact your service and maintenance engineer.
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