Hamworthy QAA73.210, Installation, Commissioning And Servicing Instructions

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HAMWORTHY HEATING LTD QAA73.210
Programmable Room Unit
500001305/B
Minimum and maximum limitation define the range within which the flow temperature setpoint may vary. They
prevent too low or too high flow temperatures.
TVw Current flow temperature set-
point.
71 minimum limitation of flow temperature (CH MN)
72 maximum limitation of flow temperature (CH MX)
These settings provide maximum or minimum limitation of the flow temperature.
Note: Maximum limitation is NOT to be regarded as a safety function as required with underfloor heating systems,
for example.
Heating curve slope (SLOPE) . The room unit generates the flow temperature setpoint based on the selected
heating curve. The result is a constant room temperature irrespective of outside temperature variations.
By changing the setting, the slope of the heating curve will be increased or decreased with the following effects:
Increase: The flow temperature will be raised when the outside temperature drops
Decrease: The flow temperature will be raised less when the outside temperature drops
The following settings produce the following effects:
2.5...40.0 The room unit delivers a weather - compensated flow temperature for the respective heating circuit
-- . -
The relevant heating circuit is deactivated
Note:
The programmed heating curve is based on a room setpoint of 20°C. If the room setpoint is adjusted, the heating
curve automatically adapts to the new value.
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