Room Thermostat (Option); Temperature Control; Manual Adjustment; Self-Adaptation - Fujitsu 112 Installation And Operating Manual

Heat pump split single service 3 phase
3 2

Room thermostat (option)

Ref. Function
10 Selecting the heating mode.
11 Digital display.
12 Control knob.
13 Presence key.
3 3

Temperature control

The heat pump's operation is subject to the temperature
control.
The set temperature for the water in the heating circuit
is adjusted according to the outdoor temperature.
The temperature control may be chosen automatically
by the machine (self-adaptation) or set manually by the
installer (Parameters 720, 721 and 726).
If there are thermostatic valves on the installation, these
must be fully open or adjusted for higher than the normal
set temperature.

3 3 1 Manual adjustment

During installation, the temperature control must be
parametered according to the heat emitters and the
dwelling's insulation.
The temperature control' curves
ambient setting of 20°C.
The slope of the temperature control (parameter 720)
determines the impact of the variations in the outdoor
temperature on the
variations.
The higher the slope, the more a slight reduction in the
outdoor temperature causes a significant increase in
the initial water temperature in the heating circuit.
The off-set in the temperature control (parameter 721)
alters the initial temperature of all the curves, without
altering the slope (figure
The corrective actions in the case of any inconvenience
are detailed in the table
- 30 -
- Definitions
- Auto
(Summer/winter mode switchover is automatic).
-
-
-
(Provided that the heat pump's electrical power supply is not interrupted).
- Operating control. Readout of the current temperature, of the heating
mode and of any faults
- Adjusting the ambient temperature setpoint.
- Comfort / Reduced switchover.
(figure 41) refer to an
initial heating temperature
42).
(figure 43).
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Figure 40 - Room thermostat (option)
Heating operating according to the heating programme
Constant comfort temperature.
Constant reduced temperature.
Stand-by mode with anti-frost protection
.

3 3 2 Self-adaptation

When this function is active (parameter 726), the
temperature control are automatically adjusted ; it is
therefore futile to alter the slope or the off-set in the
temperature control (parameters 720 and 721).
When this function is first activated, the end user
may experience some inconvenience for a few days.
This period of no more than a week is required by
the regulator to determine the slope and off-set in the
temperature control.
We advise against changing the temperature settings
during this period.
The following instructions must be observed for the self-
adaptation system to operate correctly :
- A room thermostat must be connected.
- The influence of the ambient temperature (parameter
750) must be set between 1 and 100%.
- Depending on the installation, the room thermostat may
have a greater or lesser influence on the temperature
control.
- The room in which the room thermostat is installed
must not contain any thermostatic valves. If this is the
case, the valves must be open fully.
Auto
°C
Installation and operating manual "1364 - EN"
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