Nibe RMU 40 Operation and installation manual

LEK
RMU 40
GB
IHB 1121-2
031435
Installer and User Manual
Room Unit For
NIBE F1145,F1245, F750

General
With RMU 40 you can control and monitor your NIBE
heat pump from another room in the house.
Contents
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2 x screws1 x plastic spacer1 x RMU 40
Installation possibilities
RMU 40 can be installed in several different ways, some
of which are shown below.
1
1
2
1
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2
3
1
2
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Room sensor
RMU 40 contains a room temperature sensor with the
same function as that supplied with the heat pump
(BT50).
This makes it possible to select which room temperature
sensor the heat pump will use for display and control of
the room temperature.
The room temperature sensor has up to three func-
tions:
1. Show current room temperature in the heat
pump's display.
2. Option of changing the room temperature in °C.
3. Makes it possible to change/stabilise the room
temperature.
Install the sensor in a neutral position where the set
temperature is required. A suitable location is on a
free inner wall in a hall approx. 1,5 m above the floor.
It is important that the sensor is not obstructed from
measuring the correct room temperature by being
located, for example, in a recess, between shelves,
behind a curtain, above or close to a heat source, in
a draft from an external door or in direct sunlight.
Closed radiator thermostats can also cause problems.
If the sensor is to be used to change the room temper-
ature in °C and/or to change/stabilise the room tem-
perature, the sensor must be activated in the heat
pump menu 1.9.4.
Caution
If the room sensor is used in a room with
underfloor heating, it should only have an
indicatory function, not control of the room
temperature.
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Installer and User Manual -RMU 40

Mounting
RMU 40 cannot be installed directly against a wall be-
cause the connection terminal protrudes from the reverse.
Install RMU 40 either in a spare apparatus box or on the
plastic spacer supplied.
If you want to use the room temperature sensor in
RMU 40 the position of the room unit is important. See
section "Room sensor".
1.
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Open RMU 40 by inserting a screwdriver in one of
the 4 mm wide gaps in the edge. Press the screw-
driver straight in to open the clips. Repeat for the
other three clips.
2.
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Without plastic spacer: Place the rear panel in front
of the apparatus box and screw to the wall.
With plastic spacer: Screw the plastic spacer into the
wall. Then screw the the rear panel into the plastic
spacer with the two screws supplied.
3.
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Connect according to section "Electrical connection".
4.
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Angle the front panel approx. 30 ° and secure the
two clips on one side. Then close the unit and secure
the two clips on the other side.
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Electrical connection
NOTE
All electrical connections must be carried out by
an authorised electrician.
Electrical installation and wiring must be carried
out in accordance with the stipulations in force.
F1145/F1245/F370/F470/F750 must not be
powered when installing RMU 40.
Connecting communication and power supp-
ly
The terminal block in RMU 40 is connected to terminal
block X4:9–12 on the input card (AA3) in the heat pump.
Use cable type LiYY, EKKX or similar.
RMU 40
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Several RMU 40/SMS 40
If an additional RMU 40 or a SMS 40 is to be connected
to the F1145/F1245/F370/F470/F750 this should be con-
nected from the terminal block in the first unit. No more
than two units can be connected.
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RMU 40
RMU 40
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Program settings
1. Hold the back button in RMU 40 for 7 seconds to
access the menu "service settings".
2. Enter the menu and select which climate system
RMU 40 should be connected to.
3. Start the heat pump, enter menu "system settings"
(5.2) and activate RMU 40 for the climate system that
you want to control with the room unit.
4. If you wish the heat pump to use the room temper-
ature sensor to control the temperature, set it in
menu "room sensor settings" (1.9.4). If an external
room temperature sensor (BT50) is installed it will be
used. Otherwise the room temperature sensor in
RMU 40 is used.
NOTE
The software in F1145/F1245/F370/F470/F750
must be version 1199 or higher to work with
RMU 40.
Control - Introduction
Room unit
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Display
Instructions, settings and operational information
are shown on the display.
A
Stand-by button
RMU 40 can be switched to stand-by mode using
the stand by button. Heat pump operation is not
affected by pressing the button.
B
Back button
The back button is used to:
႑go back to the previous menu.
႑change a setting that has not been confir-
med.
C
OK button
The OK button is used to:
႑confirm selections of sub menus/options/set
values.
D
Up and down buttons
With the up and down buttons you can:
႑scroll in menus and between options.
႑increase and decrease the values.
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Menu system
When RMU 40 is started you come to the information
menu. Basic information about the heat pump status is
shown here. The indoor temperature is displayed in rela-
tion to the selected climate system.
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Press any button to go to the main menu.
The information menu shows:
႑on starting
႑when the back button in the main menu is pressed
႑after 15 minutes of inactivity.
In the event of an alarm a symbol is shown at the top
edge of the display together with the alarm's number.
Go to the heat pump to get more information.
In the other menus the alarm symbol is shown in the
bottom right hand corner.
Operation
To move the cursor, press the up or down button. The
marked position is brighter and/or has a turned up tab.
Selecting menu
To advance in the menu system select a sub-menu by
marking it by using the up and down buttons and then
pressing the OK button.
Selecting options
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In an options menu the current selected option is
indicated by a green tick.
To select another option:
Mark the applicable option using the up or
down button. One of the options is pre-selec-
ted (white).
1.
Press the OK button to confirm the selected
option. The selected option has a green tick.
2.
Setting a value
To set a value:
Mark the value you want to set using the
up or down button.
1.
Press the OK button. The background of
the value becomes green, which means
that you have accessed the setting mode.
2.
Press the up button to increase the value
or the down button to reduce the value.
3.
Press the OK button to confirm the value
you have set. To undo and return to the
original value, press the back button.
4.
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Control - Menus
Main menu
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Sub-menus
Status information for the relevant menu can be found
on the display to the right of the sub-menus.
temperature Setting the temperature for the climate
system. The status information shows the set value for
the climate system.
temporary lux Activation of temporary increase in the
hot water temperature. Status information displays “off"
or what length of time of the temporary temperature in-
crease remains.
ventilation Setting the fan speed. The status information
shows the selected setting. This menu is only displayed
for the exhaust air heat pumps and ground source heat
pumps with the exhaust air module accessory.
op. mode Activation of manual or automatic operating
mode. The status information shows the selected operat-
ing mode.
service settings Setting which climate system is to be
controlled by the room unit. Hold the back button in for
7 seconds to access the Service menu.
Menu 1 - temperature
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Setting the temperature (without room sensors
activated):
Setting range: -10 to +10
The display shows the set values for heating (curve offset).
To increase or reduce the indoor temperature, increase
or reduce the value on the display.
Use the arrow buttons to set a new value. Confirm the
new setting by pressing the OK button.
The number of steps the value has to be changed to
achieve a degree change of the indoor temperature de-
pends on the heating unit. One step for under floor
heating whilst radiators may require three.
Setting the desired value. The new value is shown on the
right-hand side of the symbol in the display.
Set the temperature (with room sensors installed
and activated):
Setting range: 5 – 30 °C
The value in the display appears as a temperature in °C
if the heating system is controlled by a room sensor.
To change the room temperature, use the arrow buttons
to set the desired temperature in the display. Confirm
the new setting by pressing the OK button. The new
temperature is shown on the right-hand side of the
symbol in the display.
Caution
An increase in the room temperature can be
slowed by the thermostats for the radiators or
under floor heating. Therefore, open the thermo-
stat valves fully, except in those rooms where a
cooler temperature is required, e.g. bedrooms.
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Wait 24 hours before making a new setting, so
that the room temperature has time to stabilise.
Menu 2 - temporary lux
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Setting range: 3, 6 and 12 hours and mode "off"
When hot water requirement has temporarily increased
this menu can be used to select an increase in the hot
water temperature to lux mode for a selectable time.
Caution
If comfort mode "luxury" is selected in the heat
pump menu 2.2 no further increase can be car-
ried out.
The function is activated immediately when a time period
is selected and confirmed using the OK button. The time
to the right displays the remaining time at the selected
setting.
When the time has run out the menu returns to "from"
mode.
Select “off" to switch off temporary lux .
Menu 3 - ventilation
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Setting range: normal and speed 1–4
Caution
This menu is only displayed for the exhaust air
heat pumps and ground source heat pumps with
the exhaust air module accessory (FLM).
The ventilation in the accommodation can be temporarily
increased or reduced here.
When you have selected a new speed a clock starts a
count down. When the time has counted down the
ventilation speed returns to the normal setting.
If necessary, the different return times can be changed
in the heat pump menu 1.9.6.
Menu 4 - op. mode
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Setting range: auto, manual, add. heat only
functions
Setting range: addition, heating, cooling
The heat pump operating mode is usually set to "auto".
It is also possible to set the heat pump to "add. heat
only", but only when an addition is used, or "manual"
and select yourself what functions are to be permitted.
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Change the operating mode by marking the desired mode
and pressing the OK button. To select selectable functions
that are permitted or not, mark the function using the
arrow buttons and press the OK button.
Operating mode auto
In this operating mode you cannot select which functions
are to be permitted because it is handled automatically
by the heat pump.
Operating mode manual
In this operating mode you can select what functions are
permitted.
Operating mode add. heat only
Caution
If you choose mode "add. heat only" the com-
pressor is deselected and there is a higher oper-
ating cost.
In this operating mode the compressor is not active and
only additional heating is used.
Functions
"addition" is what helps the compressor to heat the
accommodation and/or the hot water when it cannot
manage the whole requirement alone.
"heating" means that you get heat in the accommoda-
tion. You can deselect the function when you do not
wish to have heating running.
"cooling" means that you get cooling in the accommod-
ation in hot weather. You can deselect the function when
you do not wish to have the cooling running. This altern-
ative requires an accessory for cooling or if the heat pump
has a built in function for cooling.
Menu 5 - service settings
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Here you set which climate system the room unit should
be connected to. Confirm the setting using the OK but-
ton.
The menu displays which product is connected, and the
software version in RMU 40.
Caution
The climate system must also be activated in the
heat pump menu 5.2. Activate all climate sys-
tems you wish to control from RMU 40.
Manage alarm
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In the event of an alarm a symbol is shown at the top
edge of the display together with the alarm's number.
Go to the heat pump to get more information.
In the other menus the alarm symbol is shown in the
bottom right hand corner.
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Troubleshooting
Communication error
႑Check that the settings in RMU 40 menu 5 and heat
pump menu 5.2 correspond.
႑Check the cable connection between RMU 40 and
heat pump.
Display extinguished
႑Check the cable connection between RMU 40 and
heat pump.
႑Check that the unit is not in stand-by mode.
Technical data
Technical specifications
RMU 40
85x85x35Plastic spacer WxHxD (mm)
85x85x14Dimensions WxHxD (mm)
12 VDC 40 mARated voltage
(supplied from the heat
pump)
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