Mitsubishi Heavy Industries FDCW100VNX-A, Technical Manual

Page: 145 / 315

Control
‘19 • HM-T-340
Menu 1.9.4 - room sensor settings
factor system
room sensor settings 1.9.4
heating factor system 1
control room sensor syst 2
control room sensor syst 3
cooling factor system 1
control room sensor syst 1
control room sensor syst 4
* If there is one climate system, display shows "control room sensor
system 1" only.
heating
Setting range: 0.0 – 6.0
Factory setting heating: 2.0
cooling (accessory required)
Setting range: 0.0 – 6.0
Factory setting cooling: 1.0
Room sensors to control the room temperature can be activated
here.
CAUTION
A slow heat-releasing heating system, such as for example,
underfloor heating, may not be suitable for control using
the heat pump's room sensor.
Here you can set a factor (a numerical value) that determines
how much an over or sub normal temperature (the diff erence
between the desired and actual room temperature) in the room
is to affect the supply temperature to the climate system. A
higher value gives a greater and faster change of the heating
curve's set off set.
NOTE
Too high a set value for "factor system" can (depending on
your climate system) produce an unstable room
temperature.
If several climate systems are installed the above settings can
be made for the relevant systems.
Menu 1.9.3 - min. flow line temp.
min. flow line temp. heating 1.9.3.1
climate system 1
climate system 2
climate system 3
climate system 4
°C
°C
°C
°C
20
20
20
20
min. flow line temp. cooling 1.9.3.2
climate system 1
climate system 2
climate system 3
climate system 4
°C
°C
°C
°C
18
18
18
18
* If there is one climate system, display shows "climate system 1" only.
heating
Setting range: 5 – 70 °C
Default value: 20 °C
cooling (heat pump with cooling function required)
Depending on which cooling function (2-pipe /4-pipe-system)
is used, the lower limit of the setting range can vary from 7 to
18 °C.
Setting range: 7 – 30 °C
Factory setting: 18 °C
In menu 1.9.3 you select heating or cooling, in the next menu (min.
supply temp. heating/cooling) set the minimum temperature on the
supply temperature to the climate system. This means that RC-
HY20/40 -W never calculates a temperature lower than that set
here.
If there is more than one climate system the setting can be
made separately for each system.
TIP
The value can be increased if you have, for example, a cellar
that you always want to heat, even in summer.
You may also need to increase the value in "stop heating"
menu 4.9.2 "auto mode setting".
Control
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