The Control Panel; Introduction; Control Panel; Control Thermostat - A.O. Smith ADM-40 Installation, User And Service Manual

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7
7.1

Introduction

Topics covered in this chapter, in sequence:
•

Control panel;

•

On/off switch;

•

Control thermostat;

• Control thermostat.
7.2 Control panel
This figure shows the control panel.

The control panel

1
The control panel comprises:
• an ON/OFF switch (with positions I/0);
• a control thermostat with rotary knob.
7.3 Control thermostat
Use the rotary knob of the control thermostat to set the
desired water temperature between ± 40 °C and
± 70 °C. The range is continuous and is labeled 1
through 4. The table shows the temperatures
coresponding to the numbers on the knob.
Temperature settings
Position Temperature
1 ± 40 °C
2 ± 50 °C
3 ± 60 °C
4 ± 70 °C
Instruction manual ADM
The control panel
2
IMD-0507 R0
7.4 On/off switch
You use the on/off switch to set the appliance in:
• ON mode (position I);
• OFF mode (position 0).
The appliance remains live, even when in the OFF
mode. This ensures that the frost protection remains
activated.
Note
To isolate the appliance electrically, you must use
the isolator between the appliance and the mains
power supply.
7.5

Flue gas thermostat reset button

A malfunction in the flue gas discharge, e.g. a
blockage in the chimney, can lead to the flue gas
thermostat locking out. This state is evident when the
push button on the flue gas thermostat has been
activated (refer to the figure). Once the cause has
been removed, and the sensor has cooled down
sufficiently, press this push button to reset (if the
sensor is not sufficiently cooled down, the flue gas
thermostat will immediately lock out again). The
appliance will then automatically start up again, if
there is demand. If this is not the case, please consult
the error condition summary (11 "Troubleshooting").
Note
The draught diverter may be hot.
Flue gas thermostat reset button
IMD-0140 R2
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