6 x Faults and malfunctions
35
BA ROTEX A1 BO - 10/2007
6.5 Emergency operation
Note the following for emergency operation if the valve drive is faulty:
• Press the unlocking button (fig. 6-1, pos. 5.2) and rotate the motor head of the valve drive (fig. 6-1, pos. 5.1) 1/4 turn to the
left and remove.
Î The 3-way diverter valve is set to the "Heating" position.
Note the following for the temporary manual parallel operation of the heating circuit and the hot water storage tank:
• Pull the 6-pin plug out of the valve drive.
• Place the diverter valve (fig. 6-1, pos. 5.3) in the mid-position. (only possible if the valve drive was previously in "Heating"
position.
In the event of a malfunction or incorrect settings of the electronic control, emergency heating operation can be maintained.
• Press the hand button on the control for approx. 5 seconds.
Î "Manual operation" appears on the display.
• Adjust the desired temperature with the rotary switch (setting range 5–80°C).
In manual operation, the 3-way diverter valve is in the "Storage tank charging" position first. On reaching the maximum adjustable
storage tank temperature, the 3-way diverter valve is switched to the "Heating" position.
1 Boiler flow
2 Heating flow
3 Storage tank flow
4 3-way diverter valve
5.1 Valve drive
5.2 Unlocking button of the drive lock
5.3 Hand lever
Fig. 6-1 3-way diverter valve
q
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