A.O. Smith BFM - 100, Инструкция по установке и обслуживанию

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Instruction manual BFM 51
gis
8 Status of the
appliance
8.1 Introduction
Topics covered in this chapter:
•
Operating modes ;
• Error conditions ;
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
When the appliance is in an error condition, the heat
demand is (temporarily) ignored, and you cannot draw
hot water. The frost protection is also out of action.
The error conditions are divided into three groups:
•
Lock out errors of the burner control
In this event, the red error light will be lit in the reset
button on the control panel. The burner control is
in lockout.
Once the cause has been rectified, the reset
button must be pressed to restart the appliance.
• Cycling of appliance
In this case, the appliance continuously attempts
to start, but there is an error that prevents the
heating cycle from completing successfully.
Once the cause has been rectified, the appliance
will restart automatically.
• Blocking errors
You can recognize this condition when the
appliance makes no attempt to start the heating
cycle, despite the fact that the water is colder than
the temperature set with 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 is not shown on the control
panel. For a comprehensive overview of errors, refer
to troubleshooting.
(11 "Troubleshooting")
As an end user, if you find the appliance in an error
condition, you can attempt to start the appliance
running by pressing the rest button once. However, if
the error returns or occurs several times in a short
time, you must contact your service and maintenance
engineer.