geminox THR Series User Manual

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When the winter/summer switch is set to the sum-
mer position, the regulator provides hot water only.
The temperature control knob becomes inactive; In
effect the heating flow temperature is regulated as a
function of the real outdoor temperature conditions.
This is achieved using the heating curves integrated
into the regulator itself.
The slope of this curve is preset to an average val-
ue, but can be corrected using the heating knob and
button C (both located on the control panel) to cor-
rect it to warmer or cooler (shifted parallel).
Once this parameter has been set, your heating sys-
tem becomes completely independent
1
and will pro-
duce ambient temperatures that are finely
calculated to give the optimum operating yield.
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The heating curve slope is factory-preset to 1.5 to
cater for heating by radiator.
This value needs to be changed to 0.8 when used
with floor heating:
- Press the three buttons A, B and C simultaneous-
ly until a IODVKLQJ/ appears on the display, fol-
lowed by a IODVKLQJ,,.
The slope has now been corrected. It is however
possible to refine the following parameters accord-
ing to the precise needs of the installation (see
§ 2.2.2.3 - III - OPERATION) by increasing or reduc-
ing the temperature setting by a few degrees.
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The factory settings correspond to heating by radia-
tor. The characteristics of the building (e.g. insula-
tion, heating surface) may mean that the setting
need adjusting in order to obtain a higher or lower
level of heating. This involves modifying the heating
curve parameters (see § 2.2.2.3 - III - OPERA-
TION).
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Adjust the heating knob to the right to obtain a
warmer temperature setting (room temperature
warmer) (max. + 3 °C) and to the left for a cooler set-
ting (max. - 3 °C). Press button & until an )appears
on the display (about 3 s). The parameters have
now been adopted by the system.
If the radiator temperature setting needs to be in-
creased by more than 3 degrees, this operation can
be repeated, but first wait for 10 minutes to allow the
regulator time to register the new parameters prop-
erly. The inherent inertia in buildings and their heat-
ing systems means that it may take several hours to
react to a change, so it is better not to change this
parameter too often.
To return to the standard parameters, press the
three buttons $, % and & simultaneously until an /
appears on the display.
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All the controls, settings, overrides and corrections
for heating flow/hot water temperatures (if optional
hot water tank included) can be carried out using the
room sensor.
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This version is designed to provide optimum com-
fort. As well as the functions linked to the outside
sensor described for the model above, the system
also has a room sensor.
This QAA70 room sensor provides the following
functions:
-
Compensation for ambient conditions.
- The ability to programme three daily periods for
heating or hot water.
- A easy programme override to switch the system
off either momentarily or for longer periods (e.g.
holidays).
1. The heating flow temperature varies automatically accor-
ding to the outside temperature.
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geminox THR Series Specifications

General

Brand	geminox
Model	THR Series
Category	Boiler
Language	English