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Press the
button
P SS will appear and flash in the screen and the display shows 00
Press and hold the
53 is the password to enter parameter mode
Press the
button
Press the
button to scroll through the parameters. (When an adjustment is made pressing the
button again memorizes the new setting and moves on to the next parameter)
The parameters are not numbered consecutively. It is strongly recommended the user does not adjust
any of the parameters other than numbers 10 and 11.
01: Is to encode the receiver and room unit in case of failure and will rarely be necessary (if re-encoding
is required refer to the instruction booklet that was supplied with the OT control.
08: Use the
or
buttons to adjust the maximum flow temperature you require for the heating
system.
09: Use the
or
buttons to adjust the minimum flow temperature you require for the heating system
10: Use the
or
buttons to adjust the heating curve (we suggest a setting of 2.5 as a starting point.
The default setting is 1.2)
11: Use the
or
buttons to adjust the OpenTherm Control to suit the insulation level of the property.
The scale is 1 to 20 with 1 being a well-insulated house and 20 a poorly insulated house. The unit
default is 10.
13: The room unit is set to display the actual temperature but if it is located in an unusual position, close
to a window or over a radiator for example, it can be recalibrated while in this parameter with the
buttons.
14: If you wish to reset the control system to the factory default parameters use the
the figure to 1. Then press the
16: Indicates the software version of your OpenTherm Control
17: Use the
or
buttons allow the room unit to display in Centigrade or Fahrenheit.
18: Use the
or
buttons to adjust the temperature change upward from the programmed level nec-
essary to switch the unit OFF (the hysteresis). The range is between 0.0°C and 2.0°C. Default is 0.1°C
19: Use the
or
buttons to adjust the temperature change downward necessary to switch the unit
ON (the hysteresis). The range is between 0.0°C and 2.0°C. Default is 0.5°C
20: Use the
or
buttons to adjust the frost protection temperature. The range is between 3°C and
10°C. Default is 5°C
21: Fault memory. Use the
VOKER
button until the 00 reads 53
button.
or
buttons to scroll through the last 9 faults recorded on the boiler.
or
button to adjust
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