User manual
NIBE SMO 20
UK
LEK
Control module
UHB EN 1746-6
231763
Quick guide
Navigation
Ok button (confirm/select)
Back button (back/undo/exit)
Control knob (move/increase/reduce)
A detailed explanation of the button functions can be found on page
9.
How to scroll through menus and make different settings is described
on page 14.
Set the indoor climate
temperature1.1
INDOOR CLIMATE
HOT WATER
INFO
2X
HEAT PUMP
The mode for setting the indoor temperature is accessed by pressing
the OK button twice, when in the start mode in the main menu. Read
more about the settings on page 21.
Increase hot water volume
1X
temporary lux2.1
INDOOR CLIMATE
off
HOT WATER
one time
increase
3 hrs
INFO
HEAT PUMP
2X
6 hrs
12 hrs
To temporarily increase the amount of hot water (if a hot water heater
is installed to your SMO 20), first turn the control knob to mark menu
2 (water droplet) and then press the OK button twice. Read more about
the settings on page 36.
In event of disturbances in comfort
If you experience a disturbance in comfort of any kind, there are some
measures you can take yourself before you need to contact your installer.
See page 62 for instructions.
Table of Contents
1 Important information
4
Installation data
Safety information
An excellent choice
4
5
8
2 The control module – the heart of the house
9
Control module's function
Contact with SMO 20
Maintenance of SMO 20
9
9
18
3 SMO 20 – at your service
20
Set the indoor climate
Set the hot water capacity
Get information
Adjust the heat pump
20
36
41
45
4 Disturbances in comfort
62
Troubleshooting
Additional heating only
63
66
5 Technical data
6 Glossary
67
68
Item register
72
Table of Contents |
NIBE SMO 20
3
1 Important information
Installation data
Product
SMO 20
Serial number
Installation date
Installer
Type of docking
Accumulator/hot water heater
Heat pump/output size
Add. heat type/power
No. Name
DeSet
fault
settings
1.9.1 heating curve (offset/curve slope)
0/9
Serial number must always be given
It is hereby certified that the installation has been carried out according
to instructions in the Installer Manual from NIBEand applicable regulations.
Date
4
__________________
Chapter 1 | Important information
Signed
_________________________
NIBE SMO 20
Safety information
This appliance can be used by children aged from 8
years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe
way and understand the hazards involved. Children
shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without
supervision.
Rights to make any design or technical modifications
are reserved.
©NIBE 2017.
NOTE
SMO 20 must be installed via an isolator switch with
a minimum breaking gap of 3 mm.
NOTE
If the supply cable is damaged, only NIBE, its service
representative or similar authorised person may replace it to prevent any danger and damage.
Chapter 1 | Important information
NIBE SMO 20
5
Symbols
NOTE
This symbol indicates danger to person or machine .
Caution
This symbol indicates important information about what you should
observe when maintaining your installation.
TIP
This symbol indicates tips on how to facilitate using the product.
Marking
CE
IP21
!
The CE mark is obligatory for most products sold in the EU, regardless
of where they are made.
Classification of enclosure of electro-technical equipment.
Danger to person or machine.
Read the User Manual.
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Chapter 1 | Important information
NIBE SMO 20
Serial number
The serial number can be found on the top of the cover for the control
module and in the info menu (menu 3.1).
LEK
Serial number
Caution
You need the product's (14 digit) serial number for servicing and support.
Chapter 1 | Important information
NIBE SMO 20
7
Country specific information
Great Britain
This installation is subject to building regulation approval, notify the local
Authority of intention to install.
Use only manufacturer’s recommended replacement parts.
Nibe is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and commissioning of domestic heating
and hot water systems in the UK and to encourage regular servicing to
optimise safety, efficiency and performance.
Benchmark is managed and promoted by the Heating and Hotwater Industry Council. For more information visit www.centralheating.co.uk
An excellent choice
SMO 20 is an electric control module, which has been introduced to supply
your home with inexpensive and environmentally friendly heating. Heat
production is reliable and economical with a NIBE air/water heat pump
and accumulator/water heater.
An additional heater (for example electric/oil/gas boiler) can engage
automatically if something unexpected should occur or as reserve operation.
Excellent properties for SMO 20:
■
Easy to read display
The control module has an easy to read display with easy-to-understand
menus that facilitate setting a comfortable indoor climate.
■
Easy to install
SMO 20 is easy to install together with a compatible NIBE air/water heat
pump. When installing, the control module is connected to the heat
pump, which enables you to see any heat pump alarms in SMO 20. The
size of the control module means that it can be installed on indoor walls
for easy access to control your installation.
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Chapter 1 | Important information
NIBE SMO 20
2 The control module – the heart
of the house
Control module's function
SMO 20 is a simple electrical control module, which, together with a NIBE
air/water heat pump, accumulator/water heater and additional heater
(e.g. electric/gas boiler), forms a complete installation. Among other things,
it controls the heat pump, circulation pumps, reversing valves and additional heat to supply your home with inexpensive and environmentally
friendly heating in the most efficient way.
Contact with SMO 20
Display unit
A Display
INDOOR CLIMATE
HOT WATER
INFO
B Status lamp
HEAT PUMP
C
OK button
D Back button
SMO 20
E
Control knob
F
Switch
G USB port
There is a display unit on the front of the control module, which is used
to communicate with SMO 20. Here you:
■ switch on, switch off or set the installation to emergency mode.
■ set the indoor climate and hot water as well as adjust the installation to
your needs.
■ receive information about settings, status and events.
Chapter 2 | The control module – the heart of the house
NIBE SMO 20
9
■ see different types of alarms and receive instructions about how they
are to be rectified.
A
Display
B
Status lamp
Instructions, settings and operational information are shown on the
display. You can easily navigate between the different menus and
options to set the comfort or obtain the information you require.
The status lamp indicates the status of the control module. It:
■ lights green during normal operation.
■ lights yellow in emergency mode.
■ lights red in the event of a deployed alarm.
C
OK button
The OK button is used to:
■ confirm selections of sub menus/options/set values/page in the
start guide.
D
Back button
The back button is used to:
■ go back to the previous menu.
■ change a setting that has not been confirmed.
E
Control knob
The control knob can be turned to the right or left. You can:
■ scroll in menus and between options.
■ increase and decrease the values.
■ change page in multiple page instructions (for example help text
and service info).
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F
Switch
The switch assumes three positions:
■ On ( )
■ Standby ( )
■ Emergency mode (
)
Emergency mode must only be used in the event of a fault on the
control module. In this mode, the compressor in the heat pump
switches off and the immersion heater engages. The control module
display is not illuminated and the status lamp illuminates yellow.
G
USB port
The USB port is hidden beneath the plastic badge with the product
name on it.
The USB port is used to update the software.
Visit http://www.nibeuplink.com and click the "Software" tab to
download the latest software for your installation.
Chapter 2 | The control module – the heart of the house
NIBE SMO 20
11
Menu system
Outdoor
temperature
Indoor temperature (if room sensors are
installed)
INDOOR CLIMATE
HOT WATER
Hot water temp.
INFO
Estimated amount of
hot water
HEAT PUMP
Temporary lux (if
activated)
Menu 1
INDOOR CLIMATE
Setting and scheduling the indoor climate. See page 20.
Menu 2
HOT WATER
Setting and scheduling hot water production. See page 36.
This menu only appears if a water heater is installed in the system.
Menu 3
INFO
Display of temperature and other operating information and access to
the alarm log. See page 41.
Menu 4
MY SYSTEM
Setting time, date, language, display, operating mode etc. See information
in the help menu or user manual.
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Symbols in the display
The following symbols can appear in the display during operation.
Symbol
Description
This symbol appears by the information sign if there is information in menu 3.1 that you should note.
These two symbols indicate whether the compressor in the
outdoor unit or additional heat in the installation is blocked
via SMO 20.
These can, for example, be blocked depending on which operating mode is selected in menu 4.2, if blocking is scheduled
in menu 4.9.5 or if an alarm has occurred that blocks one of
them.
Blocking the compressor.
Blocking additional heat.
This symbol appears if periodic increase or lux mode for the
hot water is activated.
This symbol indicates whether "holiday setting" is active in
4.7.
This symbol indicates whether SMO 20 has contact with Uplink.
This symbol indicates whether solar heating is active.
Accessory needed.
This symbol indicates whether cooling is active.
Heat pump with cooling function required.
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NIBE SMO 20
13
Menu number – marked sub menu
Name and menu number – main menu
Symbol –
main menu
INDOOR CLIMATE 1
INDOOR CLIMATE
HOT WATER
temperature
INFO
scheduling
off
advanced
HEAT PUMP
Marked main
menu
Symbols – sub menus
Name – sub menus
Status information – sub
menus
Operation
To move the cursor, turn the control knob to the left or the
right. The marked position is brighter and/or has a light frame.
Selecting menu
To advance in the menu system select a main menu by marking
it and then pressing the OK button. A new window then opens with sub
menus.
Select one of the sub menus by marking it and then pressing the OK button.
Selecting options
comfort mode 2.2
smart control
economy
normal
luxury
In an options menu the current selected option is indicated by a green
tick.
To select another option:
1. Mark the applicable option. One of the options is pre-selected
(white).
2. Press the OK button to confirm the selected option. The selected
option has a green tick.
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Chapter 2 | The control module – the heart of the house
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Setting a value
time & date4.4
time
24 h
12 h
date
day
month
year
Values to be changed
To set a value:
1. Mark the value you want to set using the control knob.
2. Press the OK button. The background of the value becomes
green, which means that you have accessed the setting mode.
3. Turn the control knob to the right to increase the value and to
the left to reduce the value.
4. Press the OK button to confirm the value you have set. To change
and return to the original value, press the Back button.
Chapter 2 | The control module – the heart of the house
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15
Use the virtual keyboard
Different keyboards
In some menus where text may require entering, a virtual keyboard is
available.
Depending on the menu, you can gain access to different character sets
which you can select using the control knob. To change character table,
press the Back button. If a menu only has one character set the keyboard
is displayed directly.
When you have finished writing, mark "OK" and press the OK button.
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Chapter 2 | The control module – the heart of the house
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Scroll through the windows
A menu can consist of several windows. Turn the control knob to scroll
between the windows.
Current menu
window
Number of windows
in the menu
Scroll through the windows in the start guide
language 4.6
Arrows to scroll through window in start guide
1. Turn the control knob until one of the arrows in the top left corner (at
the page number) has been marked.
2. Press the OK button to skip between the steps in the start guide.
Help menu
In many menus there is a symbol that indicates that extra help is
If the start guide is left on this page it closes
available.
automatically in
To access the help text:
Use
the control knob to select the help symbol.
1.
2. Press the OK button.
60 min
The help text often consists of several windows that you can scroll between
using the control knob.
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NIBE SMO 20
17
Maintenance of SMO 20
Regular checks
All servicing must be carried out by a person competent for the job.
Your heat pump requires minimal maintenance after commissioning. On
the other hand, it is recommended that you check your installation regularly. For more information regarding the maintenance of heat pumps
and/or accumulator tanks/water heaters, refer to the relevant manual.
If something unusual occurs, messages about the malfunction appear in
the display in the form of different alarm texts. See alarm management
on page 62.
Saving tips
Your heat pump installation produces heat and hot water. This occurs via
the control settings you made.
Factors that affect the energy consumption are, for example, indoor temperature, hot water consumption, the insulation level of the house and
whether the house has many large window surfaces. The position of the
house, e.g. wind exposure is also an affecting factor.
If you activate "Hot water Economy", less energy is used.
Power consumption
Increasing the indoor temperature one degree increases power consumption by approx. 5%.
Domestic electricity
In the past it has been calculated that an average Swedish household has
an approximate annual consumption of 5000 kWh domestic electricity/year. In today's society it is usually between 6000-12000 kWh/year.
Equipment
TV (Operation: 5 h/day, Standby: 19 h/day)
Digital box (Operation: 5 h/day, Standby:
19 h/day)
18
Normal Output
(W)
Operation
200
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Chapter 2 | The control module – the heart of the house
Approx.
annual
consumption
(kWh)
Standby
2
10
380
90
NIBE SMO 20
Equipment
DVD (Operation: 2 h/week)
TV games console (Operation: 6 h/week)
Radio/stereo (Operation: 3 h/day)
Computer incl. screen (Operation: 3 h/day,
standby 21 h/day)
Bulb (Operation 8 h/day)
Spot light, Halogen (Operation 8 h/day)
Cooling (Operation: 24 h/day)
Freezer (Operation: 24 h/day)
Stove, hob (Operation: 40 min/day)
Stove, oven (Operation: 2 h/week)
Dishwasher, cold water connection (Operation 1 time/day)
Washing machine (Operation: 1 times/day)
Tumble drier (Operation: 1 times/day)
Vacuum cleaner (Operation: 2 h/week)
Engine block heater (Operation: 1 h/day, 4
months a year)
Passenger compartment heater (Operation:
1 h/day, 4 months a year)
Normal Output
(W)
Approx.
annual
consumption
(kWh)
15
160
40
100
5
2
1
2
45
67
50
120
60
20
100
120
1500
3000
2000
-
175
58
165
380
365
310
730
2000
2000
1000
400
-
730
730
100
50
800
-
100
These values are approximate example values.
Example: A family with 2 children live in a house with 1 flat-screen TV, 1
digital box, 1 DVD player, 1 TV games console, 2 computers, 3 stereos, 2
bulbs in the WC, 2 bulbs in the bathroom, 4 bulbs in the kitchen, 3 bulbs
outside, a washing machine, tumble drier, fridge, freezer, oven, vacuum
cleaner, engine block heater = 6240 kWh domestic electricity/year
Energy meter
Check the accommodation's energy meter regularly, preferably once a
month. This will indicate any changes in power consumption.
Chapter 2 | The control module – the heart of the house
NIBE SMO 20
19
3 SMO 20 – at your service
Set the indoor climate
Overview
Sub-menus
For the menu INDOOR CLIMATE
there are several sub-menus. Status
information for the relevant menu can
be found on the display to the right
of the menus.
temperature Setting the temperature
for the climate system. The status information shows the set values for the
climate system.
INDOOR CLIMATE 1
temperature
scheduling
off
advanced
scheduling Scheduling heating and
cooling. Status information "set" is
displayed if you set a schedule but it is not active now, "holiday setting"
is displayed if the vacation schedule is active at the same time as the
schedule (the vacation function is prioritised), "active" displays if any part
of the schedule is active, otherwise it displays " off".
advanced Setting of heat curve, adjusting with external contact, minimum
value for supply temperature, room sensor and cooling function.
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Chapter 3 | SMO 20 – at your service
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Menu
1.1
temperature
Accessories are required to control the
climate system using room sensors. If
you choose Menu 1.1 and do not have
the cooling accessory, you come directly to Menu 1.1.1.
temperature1.1.1
Choose between heating or cooling
and then set the desired temperature
in the next menu "temperature heating/cooling" in menu 1.1.
Set the temperature (with room
sensors installed and activated):
temperature cooling1.1.2
heating
Setting range: 5 – 30 °C
Default value: 20
cooling (accessory is required)
Setting range: 5 – 30 °C
Default value: 25
The value in the display appears as a temperature in °C if the climate system
is controlled by a room sensor.
Caution
A slow heating system such as underfloor heating may not be suitable
for control using the control module’s room sensors.
To change the room temperature, use the control knob 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.
Setting the temperature (without room sensors activated):
Setting range: -10 to +10
Default value: 0
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 control knob to set a new value. Confirm the new setting by
pressing the OK button.
Chapter 3 | SMO 20 – at your service
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21
The number of steps the value has to be changed to achieve a degree
change of the indoor temperature depends on the heating installation.
One step is usually enough but in some cases several steps may be required.
Setting the desired value. The new value 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 thermostats
fully, except in those rooms where a cooler temperature is required, e.g.
bedrooms.
TIP
Wait 24 hours before making a new setting, so that the room temperature has time to stabilise.
If it is cold outdoors and the room temperature is too low, increase the
curve slope in menu 1.9.1.1 by one increment.
If it is cold outdoors and the room temperature is too high, reduce the
curve slope in menu 1.9.1.1 by one increment.
If it is warm outdoors and the room temperature is too low, increase
the value in menu 1.1.1 by one increment.
If it is warm outdoors and the room temperature is too high, reduce the
value in menu 1.1.1 by one increment.
Menu
1.3
scheduling
You can also schedule a longer period
during a selected period (vacation) in
menu 4.7.
22
scheduling 1.3
In the menu scheduling indoor climate (heating/cooling) is scheduled
for each weekday.
Chapter 3 | SMO 20 – at your service
heating
off
cooling
off
NIBE SMO 20
Menu
1.3.1
heating
Increases or decreases in the accommodation temperature can be scheduled here for up to three time periods per day. One step is usually enough
to change the room temperature by one degree, but in some cases several
steps may be required.
If a room sensor is installed and activated, the desired room temperature
(°C) is set during the time periods.
Activated
Schedule
SCHEDULING HEATING
schedule 1
schedule 2
1.3.1
schedule 3
activated
all
mon
tues
wed
thur
fri
21:30 - 06:00
20.5°
sat
sun
Conflict
Day
Time period
Adjusting
Schedule: The schedule to be changed is selected here.
Activated: Scheduling for the selected period is activated here. Set times
are not affected at deactivation.
Day: Select which day or days of the week the schedule is to apply to here.
To remove the scheduling for a particular day, the time for that day must
be reset by setting the start time to the same as the stop time. If the line
"all" is used, all days in the period are set for these times.
Time period: The start and stop time for the selected day for scheduling
are selected here.
Adjusting: How much the heating curve is to be offset in relation to menu
1.1 during scheduling is set here. If the rooms sensor is installed the desired
room temperature is set in °C.
Conflict: If two settings conflict with each other a red exclamation mark
is displayed.
Chapter 3 | SMO 20 – at your service
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23
TIP
If you wish to set similar scheduling for every day of the week start by
filling in “all” and then changing the desired days.
TIP
Set the stop time earlier than the start time so that the period extends
beyond midnight. Scheduling then stops at the set stop time the day
after.
Scheduling always starts on the date that the start time is set for.
Caution
Changes of temperature in accommodation take time. For example,
short time periods in combination with underfloor heating will not give
a noticeable difference in room temperature.
Menu
1.3.2
cooling (heat pump with cooling function required)
Here you can schedule when cooling is permitted in the accommodation
for up to two different time periods per day.
Schedule
Activated
SCHEDULING COOLING
schedule 1
1.3.2
schedule 2
activated
all
mon
tues
wed
thur
fri
21:30 - 06:00
on
sat
sun
Day
Time period
Adjusting
Conflict
Schedule: The schedule to be changed is selected here.
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Chapter 3 | SMO 20 – at your service
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Activated: Scheduling for the selected period is activated here. Set times
are not affected at deactivation.
Day: Select which day or days of the week the schedule is to apply to here.
To remove the scheduling for a particular day, the time for that day must
be reset by setting the start time to the same as the stop time. If the line
"all" is used, all days in the period are set for these times.
Time period: The start and stop time for the selected day for scheduling
are selected here.
Adjusting: Here, you set when active cooling will not be permitted.
Conflict: If two settings conflict with each other a red exclamation mark
is displayed.
TIP
If you wish to set similar scheduling for every day of the week start by
filling in “all” and then changing the desired days.
TIP
Set the stop time earlier than the start time so that the period extends
beyond midnight. Scheduling then stops at the set stop time the day
after.
Scheduling always starts on the date that the start time is set for.
Menu
1.9
advanced
Menu advanced is intended for the
advanced user. This menu has several
sub-menus.
advanced 1.9
curve
curve Setting the curve slope for
heating and cooling.
external adjustment
external adjustment Setting the heat
curve offset when the external contact
is connected.
room sensor settings
min. flow line temp. Setting minimum permitted flow line temperature.
min. flow line temp.
cooling settings
own curve
room sensor settings Settings regarding the room sensor.
cooling settings Settings for cooling.
own curve Setting own curve for heating and cooling.
point offset Setting the offset of the heating curve or cooling curve at a
specific outdoor temperature.
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NIBE SMO 20
25
Menu
1.9.1
curve
heating curve
Setting range: 0 – 15
heating curve 1.9.1.1
system
Default value: 9
flow temperature °C
cooling curve (accessory
required)
Setting range: 0 – 9
Default value: 0
outdoor temp. °C
cooling curve 1.9.1.2
system
flow temperature °C
outdoor temp. °C
The prescribed heating curve for your house can be viewed in the
menu heating curve . The task of the heating curve is to give an even indoor
temperature, regardless of the outdoor temperature, and thereby energy
efficient operation. It is from this heating curve that the control module's
control computer determines the temperature of the water to the heating
system, supply temperature, and therefore the indoor temperature. Select
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Chapter 3 | SMO 20 – at your service
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the heating curve and read off how the supply temperature changes at
different outdoor temperatures here. If there is access to cooling the same
settings can be made for the cooling curve.
Curve coefficient
Framledningstempereratur
Supply
temperature
(°C)
80
70
Steeper curve slope
60
50
40
30
0
0
10
0
-10
-20
-30
-40
Outdoor Utetemperatur
temperature
(°C)
The slopes of the heating /cooling
curves indicate how many degrees
the supply temperature is to be increased/reduced when the outdoor
temperature drops/increases. A
steeper slope means a higher supply
temperature for heating or a lower
supply temperature for cooling at a
certain outdoor temperature.
The optimum slope depends on the climate conditions in your location, if
the house has radiators or under floor heating and how well insulated the
house is.
The curve is set when the heating installation is installed, but may need
adjusting later. Normally, the curve will not need further adjustment.
Caution
When making fine adjustments of the indoor temperature, the curve
must be offset up or down instead, this is done in menu 1.1 temperature .
Curve offset
Framledningstempereratur
Supply
temperature
(°C)
80
70
Offset heating curve
60
50
40
30
0
0
10
0
-10
-20
-30
-40
Outdoor Utetemperatur
temperature
(°C)
Chapter 3 | SMO 20 – at your service
An offset of the curve means that
the supply temperature changes by
the same amount for all the outdoor
temperatures, e.g. that a curve offset of +2 steps increases the supply
temperature by 5 °C at all outdoor
temperatures.
NIBE SMO 20
27
Flow line temperature–
maximum and minimum values
Framledningstempereratur
Supply
temperature
(°C)
80
70
Maximum value
60
50
40
Minimum value
30
0
0
10
0
-10
-20
-30
-40
Outdoor Utetemperatur
temperature
(°C)
Because the flow line temperature
cannot be calculated higher than
the set maximum value or lower
than the set minimum value the
heating curve flattens out at these
temperatures.
Caution
Under floor heating systems are normally max flow line temperature
set to between 35 and 45 °C.
Must be restricted with underfloor cooling min. flow line temp. to prevent condensation.
Check the max temperature for your floor with your installer/floor supplier.
The figure at the end of the curve indicates the curve slope. The figure
beside the thermometer gives the curve offset. Use the control knob to
set a new value. Confirm the new setting by pressing the OK button.
Curve 0 is an own curve created in menu 1.9.7.
To select another curve (slope):
1. Press the OK button to access the setting mode
2. Select a new curve. The curves are numbered from 0 to 15, the greater
the number, the steeper the slope and the greater the supply temperature. Curve 0 means that own curve (menu 1.9.7) is used.
3. Press the OK button to exit the setting.
To read off a curve:
1. Turn the control knob so that the ring on the shaft with the outdoor
temperature is marked.
2. Press the OK button.
3. Follow the grey line up to the curve and out to the left to read off the
value for the supply temperature at the selected outdoor temperature.
4. You can now select to take read outs for different outdoor temperatures by turning the control knob to the right or left and read off the
corresponding flow temperature.
5. Press the OK or Back button to exit read off mode.
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Chapter 3 | SMO 20 – at your service
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TIP
Wait 24 hours before making a new setting, so that the room temperature has time to stabilise.
If it is cold outdoors and the room temperature is too low, increase the
curve slope by one increment.
If it is cold outdoors and the room temperature is too high, lower the
curve slope by one increment.
If it is warm outdoors and the room temperature is too low, increase
the curve offset by one increment.
If it is warm outdoors and the room temperature is too high, lower the
curve offset by one increment.
Cooling in 2-pipe system
SMO 20 contains a built-in function for operating cooling in 2-pipe systems
down to 7 °C, factory setting 18 °C. This requires that the outdoor module
can run cooling. (See Installer Manual for your air/water heat pump.) If
the outdoor module is permitted to run cooling, the cooling menus are
activated in the display on SMO 20.
In order for operating mode “cooling” to be permitted, the average temperature must be above the setting value for “start cooling” in menu 4.9.2
The cooling settings for the climate system are adjusted in the indoor climate menu, menu 1.
Menu
1.9.2
external adjustment
climate system
external adjustment1.9.2
Setting range: -10 to +10.
Or desired room temperature if the
room sensor is installed.
Default value: 0
climate system 1
Connecting an external contact, for example, a room thermostat or a timer
allows you to temporarily or periodically raise or lower the room temperature while heating. When the contact is on, the heating curve offset is
changed by the number of steps selected in the menu. If a room sensor is
installed and activated the desired room temperature (°C) is set.
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Menu
1.9.3
min. flow line temp.
heating
min. flow line temp. heating1.9.3.1
Setting range: 5-70 °C
Default value: 20 °C
cooling (heat pump with
cooling function required)
climate system 1
°C
Depending on which cooling function (in 2-pipe system or 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 SMO 20 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".
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Menu
1.9.4
room sensor settings
factor system
room
roomsensor
sensorsettings
settings1.9.4
1.9.4
heating
Setting range: 0.0 - 6.0
Factory setting heating: 1.0
control room sensor syst 1
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 heating system such as underfloor heating may not be suitable
for control using the control module’s room sensors.
Here you can set a factor (a numerical value) that determines how much
an over or sub normal temperature (the difference 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 offset.
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.
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Menu
1.9.5
cooling settings (heat pump with cooling function required)
delta at +20 °C
cooling1.9.5
Setting range: 3 – 10 °C
delta at +20 °C
°C
Factory setting: 3
delta at +40 °C
°C
delta at +40 °C
BT74
Setting range: 3 – 20 °C
heat/cool sen.
Factory setting: 6
set pt value cool/heat sensor
°C
heat at room under temp.
DM
cooling1.9.5
use room sensor
set pt value cool/heat sensor
°C
heat at room under temp.
°C
cool at room over temp.
°C
heat/cool sen.
Setting range: BT74 (BT50, RMU-BT50)
Factory setting: BT74
set pt value cool/heat sensor
Setting range: 5 – 40 °C
Factory setting: 21
heat at room under temp.
Setting range: 0.5 – 10.0 °C
Default value: 1.0
cool at room over temp.
Setting range: 0.5 – 10.0 °C
Default value: 3.0
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start active cooling
Setting range: 10 – 300 DM
Factory setting: 30 DM
time betw. switch heat/cool (Displayed if cooling in 2-pipe system
is activated.)
Setting range: 0 – 48 h
Factory setting: 2
You can use SMO 20 to cool the house during hot periods of the year.
Caution
Certain setting options only appear if their function is installed and activated in SMO 20.
delta at +20 °C
Set the desired temperature on the temperature difference between
supply and return lines to the climate system during cooling operation
when the outdoor temperature is +20 °C. SMO 20 then attempts to get
as close to the set temperature as possible.
delta at +40 °C
Set the desired temperature on the temperature difference between
supply and return lines to the climate system during cooling operation
when the outdoor temperature is +40 °C. SMO 20 then attempts to get
as close to the set temperature as possible.
heat/cool sen.
If a particular room will determine how the whole installation will work,
a room sensor (BT74) is used. If room sensor (BT74) is connected to SMO 20,
room sensor (BT74) determines when it is time to switch between cooling
and heating operation for the whole installation.
Caution
When the heating/cooling sensors (BT74) have been connected and
activated in menu 5.4, no other sensor can be selected in menu 1.9.5.
set pt value cool/heat sensor
Here you can set at which indoor temperature SMO 20 is to shift between
heating respectively cooling operation.
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33
heat at room under temp.
Here you can set how far the room temperature can drop below the desired
temperature before SMO 20 switches to heating operation.
cool at room over temp.
Here you can set how high the room temperature can increase above the
desired temperature before SMO 20 switches to cooling operation.
start active cooling
Here you can set when active cooling is to start.
Degree minutes are a measurement of the current heating demand in the
house and determine when the compressor, cooling operation respectively
additional heat will start/stop.
time betw. switch heat/cool
This selection is only available when cooling in 2-pipe systems.
Here you can set how long SMO 20 is to wait before it returns to heating
mode when the cooling demand has ceased or vice versa.
Menu
1.9.7
own curve
supply temperature
own heating curve1.9.7.1
heating
flow line temp. at -30 °C
°C
Setting range: 5 – 70 °C
flow line temp. at -20 °C
°C
flow line temp. at -10 °C
°C
flow line temp. at 0 °C
°C
flow line temp. at 10 °C
°C
flow line temp. at 20 °C
°C
cooling (accessory required)
Depending on which accessory is
used the setting range can vary.
Setting range: -5 – 40 °C
Create your own heating or cooling curve here, by setting the desired
supply temperatures for different outdoor temperatures.
Caution
Curve 0 in menu 1.9.1 must be selected for own curve to apply.
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Menu
1.9.8
point offset
outdoor temp. point
point offset 1.9.8
Setting range: -40 – 30 °C
Default value: 0 °C
change in curve
outdoor temp. point
°C
change in curve
°C
flow temperature °C
Setting range: -10 – 10 °C
Default value: 0 °C
outdoor temp. °C
Select a change in the heating curve at a certain outdoor temperature
here. One step is usually enough to change the room temperature by one
degree, but in some cases several steps may be required.
The heat curve is affected at ± 5 °C from set outdoor temp. point.
It is important that the correct heating curve is selected so that the room
temperature is experienced as even.
TIP
If it is cold in the house, at, for example -2 °C, "outdoor temp. point" is
set to "-2" and "change in curve" is increased until the desired room
temperature is maintained.
Caution
Wait 24 hours before making a new setting, so that the room temperature has time to stabilise.
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35
Set the hot water capacity
Overview
Sub-menus
HOT WATER 2
This menu only appears if a water
heater is docked to the heat pump.
For the menu HOT WATER there are
several sub-menus. Status information
for the relevant menu can be found
on the display to the right of the
menus.
temporary lux
off
comfort mode
economy
scheduling
temporary lux Activation of temporary increase in the hot water temperature. Status information displays
“off" or what length of time of the
temporary temperature increase remains.
active
advanced
comfort mode Setting hot water comfort. The status information displays
what mode is selected, "economy", "normal" or "luxury".
scheduling Scheduling hot water comfort. The status information "set"
appears if you have set scheduling but it is not currently active, "holiday
setting" appears if holiday setting is active at the same time as scheduling
(when the holiday function is prioritised), "active" appears if any part of
scheduling is active, otherwise "off" appears.
advanced Setting periodic increase in the hot water temperature.
Menu
2.1
temporary lux
Setting range: 3, 6 and 12 hours
and mode "off" and "one time increase"
Default value: "off"
temporary lux2.1
off
one time
increase
3 hrs
6 hrs
12 hrs
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.
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Caution
If comfort mode "luxury" is selected in menu 2.2 no further increase can
be carried out.
The function is activated immediately when a time period is selected and
confirmed using the OK button. The remaining time for the selected setting
is shown to the right.
When the time has run out SMO 20 returns to the mode set in menu 2.2.
Select “off" to switch off temporary lux .
Menu
2.2
comfort mode
Setting range: smart control, economy, normal, luxury
Factory setting: smart control
comfort mode 2.2
smart control
economy
normal
luxury
The difference between the selectable modes is the temperature of the
hot tap water. Higher temperature means that the hot water lasts longer.
smart control: In this menu you activate the Smart Control function. The
function learns the previous week’s hot water consumption and adapts
the temperature in the water heater for the coming week to ensure minimal energy consumption.
If the hot water demand is greater, there is a certain additional amount
of hot water available.
When the Smart Control function is activated, the water heater delivers
the reported performance according to the energy decal.
economy: This mode gives less hot water than the others, but is more
economical. This mode can be used in smaller households with a small hot
water requirement.
normal: Normal mode gives a larger amount of hot water and is suitable
for most households.
luxury: Lux mode gives the greatest possible amount of hot water. In this
mode, the immersion heater, as well as the compressor, is used to heat
hot water, which may increase operating costs.
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37
Menu
2.3
scheduling
Two different periods of hot water
comfort per day can be scheduled
here.
Activated
Schedule
SCHEDULING HOT WATER
schedule 1
Scheduling is activated/deactivated by
ticking/unticking"activated". Set times
are not affected at deactivation.
2.3
schedule 2
activated
all
mon
Schedule: The schedule to be changed
is selected here.
tues
Activated: Scheduling for the selected
period is activated here. Set times are
not affected at deactivation.
fri
normal
wed
thur
sat
sun
Day
Time period
Adjusting
Conflict
Day: Select which day or days of the
week the schedule is to apply to here.
To remove the scheduling for a particular day, the time for that day must
be reset by setting the start time to the same as the stop time. If the line
"all" is used, all days in the period are set for these times.
Time period: The start and stop time for the selected day for scheduling
are selected here.
Adjusting: Set the hot water comfort that is to apply during scheduling
here.
Conflict: If two settings conflict with each other a red exclamation mark
is displayed.
TIP
If you wish to set similar scheduling for every day of the week start by
filling in “all” and then changing the desired days.
TIP
Set the stop time earlier than the start time so that the period extends
beyond midnight. Scheduling then stops at the set stop time the day
after.
Scheduling always starts on the date that the start time is set for.
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Menu
2.9
advanced
advanced 2.9
Menu advanced has orange text and
is intended for the advanced user. This
menu has several sub-menus.
periodic increase
hot water recirc.
Menu
2.9.1
periodic increase
period
periodic increase 2.9.1
Setting range: 1 - 90 days
Default value: 14 days
activated
start time
period
Setting range: 00:00 - 23:00
Default value: 00:00
days
start time
Next periodic increase
To prevent bacterial growth in the water heater, the heat pump and any
additional heater can increase the hot water temperature for a short time
at regular intervals.
The length of time between increases can be selected here. The time can
be set between 1 and 90 days. Factory setting is 14 days. Tick/untick "activated" to start/switch off the function.
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39
Menu
2.9.2
hot water recirc.
operating time
hot water recirc. 2.9.2
Setting range: 1 - 60 min
Default value: 60 min
operating time
min
downtime
downtime
min
Setting range: 0 - 60 min
Default value: 0 min
period1
period2
period3
Set the hot water circulation for up to three periods per day here. During
the set periods the hot water circulation pump will run according to the
settings above.
"operating time" decide how long the hot water circulation pump must
run per operating instance.
"downtime" decide how long the hot water circulation pump must be
stationary between operating instances.
Hot water circulation is activated in menu 5.4 "soft inputs and outputs".
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Get information
Overview
Sub-menus
For the menu INFO there are several
sub-menus. No settings can be made
in these menus, they just display information. Status information for the
relevant menu can be found on the
display to the right of the menus.
service info shows temperature levels
and settings in the installation.
compressor info shows operating
times, number of starts etc for the
compressor in the heat pump.
INFO 3
service info
compressor info
add. heat info
runs
off
alarm log
indoor temp. log
add. heat info displays information about the additional heat's operating
times etc.
alarm log shows the latest alarms.
indoor temp. log the average temperature indoors week by week during
the past year.
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41
Menu
3.1
service info
Information about the actual operating status of the installation (e.g. current temperatures etc.) can be obtained here. No changes can be made.
The information is on several pages.
Turn the control knob to scroll
between the pages.
Symbols in this menu:
Compressor
Heating
Addition
Hot water
service info 3.1
status
op. prioritisation
AA25
hot water
hot water charging
49.0 °C
hot water top
52.0 °C
calculated flow temp.
degree minutes
outdoor temp.
5.8 °C
-700
-5.6 °C
ext heat. med. pump
runs
charge pump speed
57 %
Cooling
Heating
medium
pump
(orange)
Menu
3.2
42
compressor info
Information about the compressor’s
operating status and statistics can be
obtained here. No changes can be
made.
Chapter 3 | SMO 20 – at your service
compressor info 3.2
EB101
status:
heating
number of starts:
total operating time:
345 hrs
- of which hot water:
5 hrs
NIBE SMO 20
Menu
3.3
add. heat info
add. heat info3.3
Information about the additional
heat's settings, operating status and
statistics can be obtained here. No
changes can be made.
off
status:
time factor:
Menu
3.4
alarm log
alarm log 3.4
To facilitate fault-finding the installation's operating status at alarm alerts
is stored here. You can see information for the 10 most recent alarms.
TB alarm
LP alarm
Sensor flt:BT6
Sensor flt:BT2
To view the run status in the event of
an alarm, mark the alarm and press
the OK button.
Sensor flt:BT1
alarm log 3.4
outdoor temp.
-
condenser return
-
condenser out
-
addition
-
hot water charging
-
heat medium flow
-
evaporator
-
operating time
op. mode
-
Information about an alarm.
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43
Menu
3.5
indoor temp. log
Here you can see the average temperature indoors week by week during
the past year. The dotted line indicates
the annual average temperature.
indoor temp. log3.5
indoor temp.°C
The average outdoor temperature is
only shown if a room temperature
sensor/room unit is installed.
To read off an average
temperature
week
1. Turn the control knob so that the
ring on the shaft with the week number is marked.
2. Press the OK button.
3. Follow the grey line up to the graph and out to the left to read off the
average indoor temperature at the selected week.
4. You can now select to take read outs for different weeks by turning
the control knob to the right or left and read off the average temperature.
5. Press the OK or Back button to exit read off mode.
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Adjust the heat pump
Overview
Sub-menus
For the menu MY SYSTEM there are
several sub-menus. Status information
for the relevant menu can be found
on the display to the right of the
menus.
plus functions Settings applying to
any installed extra functions in the
heating system.
op. mode Activation of manual or
automatic operating mode. The status
information shows the selected operating mode.
HEAT PUMP 4
plus functions
op. mode
auto
time & date
language / language
holiday setting
off
advanced
time & date Setting current time and date.
language Select the language for the display here. The status information
shows the selected language.
holiday setting Vacation scheduling heating and hot water comfort.
Status information "set" is displayed if you set a vacation schedule but it
is not active at the moment, "active" is displayed if any part of the vacation
schedule is active, otherwise it displays " off".
advanced Settings of control module work mode.
Menu
4.1
plus functions
Menu
4.1.3
internet
Settings for any additional functions installed in SMO 20 can be made in
the sub menus.
internet4.1.3
Here you make settings for connecting
SMO 20 to the internet.
NOTE
For these functions to work the
network cable must be connected.
Chapter 3 | SMO 20 – at your service
nibe uplink
tcp/ip settings
proxy settings
NIBE SMO 20
45
Menu
4.1.3.1
Uplink
nibe uplink 4.1.3.1
Here you can manage the installation's connection to Uplink (http://www.nibeuplink.com) and see
the number of users connected to the
installation via the internet.
A connected user has a user account
in Uplink , which has been given permission to control and/or monitor
your installation.
serial number
connection string
number of users
request new connection string
switch off all users
Request new connection string
To connect a user account on Uplink to your installation, you must request
a unique connection code.
1. Mark “request new connection string" and press the OK button.
2. The installation now communicates with Uplink to create a connection
code.
3. When a connection string has been received, it is shown in this menu
at "connection string" and is valid for 60 minutes.
Disconnect all users
1. Mark “switch off all users" and press the OK button.
2. The installation now communicates with Uplink to release your installation from all users connected via the internet.
NOTE
After disconnecting all users none of them can monitor or control your
installation via Uplink without requesting a new connection string.
Menu
4.1.3.8
tcp/ip settings
tcp/ip settings4.1.3.8
You can set TCP/IP settings for your
installation here.
Automatic setting (DHCP)
1. Tick “automatic". The installation
now receives the TCP/IP settings
using DHCP.
2. Mark “confirm" and press the OK
button.
automatic
ip-address
net mask
gateway
dns
confirm
reset
Manual setting
1. Untick "automatic", you now have access to several setting options.
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2.
3.
4.
5.
6.
Mark “ip-address" and press the OK button.
Enter the correct details via the virtual keypad.
Mark “OK" and press the OK button.
Repeat 1 - 3 for "net mask", "gateway" and "dns".
Mark “confirm" and press the OK button.
Caution
The installation cannot connect to the internet without the correct TCP/IP
settings. If unsure about applicable settings use the automatic mode or
contact your network administrator (or similar) for further information.
TIP
All settings made since opening the menu can be reset by marking "reset"
and pressing the OK button.
Menu
4.1.3.9
proxy settings
proxy settings 4.1.3.9
You can set proxy settings for your
installation here.
Proxy settings are used to give connection information to a intermediate
server (proxy server) between the installation and Internet. These settings
are primarily used when the installation connects to the Internet via a
company network. The installation
supports proxy authentication of the
HTTP Basic and HTTP Digest type.
use proxy
server
port
user name
password
confirm
reset
If unsure about applicable settings, contact your network administrator
(or similar) for further information.
Setting
1.
2.
3.
4.
5.
6.
Tick “use proxy" if you do not want to use a proxy.
Mark “server" and press the OK button.
Enter the correct details via the virtual keypad.
Mark “OK" and press the OK button.
Repeat 1 - 3 for "port", "user name" and "password".
Mark “confirm" and press the OK button.
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TIP
All settings made since opening the menu can be reset by marking "reset"
and pressing the OK button.
Menu
4.1.5
SG Ready
SG Ready 4.1.5
This function can only be used in
mains networks that support the "SG
Ready"-standard .
Make settings for the function "SG
Ready" here.
affect room temperature
affect room temperature
affect hot water
affect cooling
Here you set whether room temperature should be affected when activating "SG Ready".
With low price mode on "SG Ready" the parallel offset for the indoor
temperature is increased by "+1". If a room sensor is installed and activated,
the desired room temperature is instead increased by 1 °C.
With over capacity mode on "SG Ready" the parallel offset for the indoor
temperature is increased by "+2". If a room sensor is installed and activated,
the desired room temperature is instead increased by 2 °C.
affect hot water
Here you set whether the temperature of the hot water should be affected
when activating "SG Ready".
With low price mode on "SG Ready" the stop temperature of the hot water
is set as high as possible at only compressor operation (immersion heater
not permitted).
With over capacity mode of "SG Ready" the hot water is set to "luxury"
(immersion heater permitted).
affect cooling (accessory required)
Here you set whether room temperature during cooling operation should
be affected when activating "SG Ready".
With low price mode of "SG Ready" and cooling operation the indoor
temperature is not affected.
With over capacity mode on "SG Ready" and cooling operation, the parallel
offset for the indoor temperature is reduced by "-1". If a room sensor is
installed and activated, the desired room temperature is instead reduced
by 1 °C.
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NOTE
The function must be connected and activated in your SMO 20.
Menu
4.1.6
Smart price adaption™
smart price adaption 4.1.6
area
In this menu you state where the heat
pump is located and how great a role
the electricity price should play. The
greater the value, the greater the effect the electricity price has and the
possible savings are larger, but at the
same time there is an increased risk
of affecting comfort.
activated
price of electricity
overview
area
affect room temperature
affect hot water
price of electricity overview
Here you can obtain information on
how the electricity price varies over
up to three days.
affect room temperature
Setting range: 1 - 10
Factory setting: 5
affect hot water
Setting range: 1 - 4
Factory setting: 2
affect cooling
Setting range: 1 - 10
Factory setting: 3
Smart price adaption™ moves the heat pump's consumption over 24 hours
to periods with the cheapest electricity tariff, which gives savings for hourly
rate based electricity contracts. The function is based on hourly rates for
the next 24 hours being retrieved via Uplink and therefore an internet
connection and an account for Uplink are required.
Deselect "activated" to switch off Smart price adaption™.
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Menu
4.1.7
smart home (accessory is required)
smart home 4.1.7
When you have a smart home system
that can speak to Uplink, you can
control your heat pump via an app
By allowing connected units to communicate with Uplink, your heating
system becomes a natural part of your
homesmart home and gives you the
opportunity to optimise the operation.
smart home
control system. 1
Caution
The smart home function requires
Uplink in order to work.
Menu
4.1.8
smart energy source™
SMART ENERGY SOURCE 4.1.8
settings
set. price
CO2 impact*
The function prioritises how / to what
extent each docked energy source will
be used. Here you can choose if the
system is to use the energy source that
is cheapest at the time. You can also
choose if the system is to use the energy source that is most carbon neutral at the time.
*Select control method "CO2" under settings
to open this menu.
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Chapter 3 | SMO 20 – at your service
settings
set. price
settings 4.1.8.1
smart energy source
control method
CO 2
NIBE SMO 20
Menu
4.1.8.1
settings
settings 4.1.8.1
smart energy source™
Setting range: Off/On
Factory setting: Off
control method
Setting range: Price / CO2
smart energy source
control method
price per kWh
Factory setting: Price
Menu
4.1.8.2
set. price
set. price 4.1.8.2
price, electricity
Setting range: spot, tariff, fixed
price
Factory setting: fixed price
price, electricity
price taken from
fixed price
price per kWh
Setting range fixed price:
0–100,000*
Here you can choose if the system is
to exercise control based on the spot
price, tariff control or a set price. The
setting is made for each individual
energy source. Spot price can only be
used if you have an hourly tariff
agreement with your electricity supplier.
*The currency varies depending on the
country selected.
Chapter 3 | SMO 20 – at your service
set. price 4.1.8.2
price, electricity
price taken from
tariff
price per kWh, low tariff
price per kWh, high tariff
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51
Menu
4.1.8.3
CO2 impact
CO2 impact 4.1.8.3
CO2, electricity
Setting range: 0–5
Default value: 2.5
Here you set the size of the carbon
footprint for each energy source,
CO2, electricity
The carbon footprint is different for
different energy sources. For example,
the energy from solar cells and wind
turbines can be considered carbon dioxide neutral and, therefore, has a
low CO2 impact. Energy from fossil fuels can be considered to have a
higher carbon footprint and, therefore, has a higher CO2 impact.
Menu
4.1.8.4
52
tariff periods, electricity
tariff periods, electricity4.1.8.4
Here you can use tariff control for the
electric additional heat.
date
Set the lower tariff periods. It is possible to set two different date periods
per year. Within these periods, it is
possible to set up to four different
periods on weekdays (Monday to Friday) or four different periods on
weekends (Saturdays and Sundays).
periods with low tariff
start date
jan
stop date
dec
weekdays
wkdays
period
period
period
period
Chapter 3 | SMO 20 – at your service
date
NIBE SMO 20
Menu
4.1.10
solar electricity
affect room temperature
SOLAR ELECTRICITY 4.1.10
Setting range: on/off
Factory setting: off
affect room temperature
affect hot water
affect hot water
Setting range: on/off
affect pool temperature
Factory setting: off
power
A
affect pool temperature
Setting range: on/off
Factory setting: off
Here you set whether you want EME 20 or EME 10 to affect the room
temperature and / or the hot water and / or the pool temperature. How
much this is affected depends on how much electricity the solar panels
produce. The heat pump therefore has 4 operating mode for this.
Operating mode 1: The solar panels are not currently producing any
electricity and there is no impact on room temperature, hot water or pool.
Operating mode 2: The solar panels are producing a small amount of
electricity. The capacity is displayed in the service information and in Uplink.
There is no impact on room temperature, hot water or pool.
Operating mode 3: The solar panels are producing electricity, but still less
than required by the heat pump. There is therefore no impact on room
temperature, hot water or pool. However, an AUX relay is actuated where
there is no other demand.
Operating mode 4: The solar panels are producing electricity that is more
than required by the heat pump. This has an impact on room temperature,
hot water and pool if this is activated. An AUX relay is actuated where
there is no other demand, the setting is adjusted in menu 5.4.
Chapter 3 | SMO 20 – at your service
NIBE SMO 20
53
Menu
4.2
op. mode
op. mode
op. mode 4.2
Setting range: auto, manual, add.
heat only
Default value: auto
auto
manual
functions
add. heat only
Setting range: compressor, addition, heating, cooling
The control module operating mode is usually set to "auto". It is also possible to set the control module to "add. heat only", when only additional
heat is used, or "manual" and then select what functions are to be permitted.
Change the operating mode by marking the desired mode and pressing
the OK button. When an operating mode is selected it shows what in the
control module is permitted (crossed out = not permitted) and selectable
alternatives to the right. To select selectable functions that are permitted
or not, mark the function using the control knob and press the OK button.
Operating mode auto
In this operating mode the control module automatically selects what
functions are permitted.
Operating mode manual
In this operating mode you can select what functions are permitted. You
cannot deselect "compressor" in manual mode.
Operating mode add. heat only
In this operating mode the compressor is not active, only additional heat
is used.
Caution
If you choose mode "add. heat only" the compressor is deselected and
there is a higher operating cost.
54
Chapter 3 | SMO 20 – at your service
NIBE SMO 20
Caution
You cannot change from only additional heat if you do not have a heat
pump connected.
Functions
“compressor” is that which produces hot water and heating for the accommodation. If “compressor” is deselected in auto mode, this is displayed
with a symbol in the main menu on the symbol for the control module.
You cannot deselect “compressor” in manual mode.
"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 accommodation. You can
deselect the function when you do not wish to have heating running.
"cooling" means that you get cooling in the accommodation in hot
weather. This alternative requires an accessory for cooling or that the heat
pump has a built in function for cooling and is activated in the menu. You
can deselect the function when you do not wish to have the cooling running.
Menu
4.4
time & date
Set time and date, display mode and
time zone here.
TIP
Time and date are set automatically
if the heat pump is connected to
Uplink. To obtain the correct time,
the time zone must be set.
Menu
4.6
time & date4.4
time
24 h
12 h
date
day
month
year
language
Choose the language that you want
the information to be displayed in
here.
Chapter 3 | SMO 20 – at your service
language 4.6
NIBE SMO 20
55
Menu
4.7
holiday setting
If a room sensor is installed and activated, the desired room temperature
(°C) is set during the time period.
If a room sensor is not activated, the
desired offset of the heating curve is
set. One step is usually enough to
change the room temperature by one
degree, but in some cases several
steps may be required.
holiday setting4.7
activated
start date
stop date
heating
hot water comfort
cooling
0
economy
off
Vacation scheduling starts at 00:00
on the start date and stops at 23:59
on the stop date.
TIP
Complete holiday setting about a day before your return so that room
temperature and hot water have time to regain usual levels.
TIP
Set the vacation setting in advance and activate just before departure
in order to maintain the comfort.
Caution
If you choose to switch off hot water production during the vacation
“periodic increase" (preventing bacterial growth) are blocked during
this time. "periodic increase" started in conjunction with the vacation
setting being completed.
Menu
4.9
advanced
Menu advanced has orange text and
is intended for the advanced user. This
menu has several sub-menus.
advanced 4.9
op. prioritisation
auto mode setting
degree minute setting
factory setting user
schedule blocking
56
Chapter 3 | SMO 20 – at your service
off
NIBE SMO 20
Menu
4.9.1
op. prioritisation
op. prioritisation
op. prioritisation 4.9.1
Setting range: 0 to 180 min
Default value: 30 min
hot water
min
heating
min
The indicator marks where in the cycle the installation is.
If 0 minutes is selected it means that requirement is not prioritised, but
will only be activated when there is no other requirement.
Menu
4.9.2
auto mode setting
start cooling
auto mode setting4.9.2
Setting range: -20 – 40 °C
Factory setting: 25
start cooling
°C
stop heating
stop heating
°C
Setting range: -20 – 40 °C
stop additional heat
°C
Default values: 17
filtering time
hrs
stop additional heat
Setting range: -25 – 40 °C
Factory setting: 5
filtering time
Setting range: 0 – 48 h
Default value: 24 h
When the operating mode is set to "auto", the control module selects
when start and stop of additional heat and heat production is permitted,
depending on the average outdoor temperature. If the heat pump has
the integrated cooling function and it is activated in the menu you can
also select the start temperature for cooling.
Select the average outdoor temperatures in this menu.
Chapter 3 | SMO 20 – at your service
NIBE SMO 20
57
You can also set the time over which (filtering time) the average temperature is calculated. If you select 0, the present outdoor temperature is
used.
Caution
It cannot be set "stop additional heat" higher than "stop heating".
Menu
4.9.3
degree minute setting
current value
degree minute setting4.9.3
Setting range: -3000 – 3000
start compressor
current value
Setting range: -1000 – -30
start compressor
DM
Default value: -60
start diff additional heat
DM
diff. between additional steps
DM
DM
start diff additional heat
Setting range: 100 – 2000
Factory setting: 400
diff. between additional steps
Setting range: 10 – 1000
Factory setting: 30
Degree minutes are a measurement of the current heating requirement
in the house and determine when the compressor respectively additional
heat will start/stop.
Caution
Higher value on "start compressor" gives more compressor starts, which
increase wear on the compressor. Too low value can give uneven indoor
temperatures.
58
Chapter 3 | SMO 20 – at your service
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Menu
4.9.4
factory setting user
factory setting user 4.9.4
All settings that are available to the
user (including advanced menus) can
be reset to default values here.
Do you want to reset all user settings to
factory settings?
Caution
After factory setting, personal settings such as heating curves must
be reset.
Menu
4.9.5
yes
no
schedule blocking
The additional heat can be scheduled
to be blocked for up to two different
time periods here.
When scheduling is active the relevant
blocking symbol is shown in the main
menu on the symbol for the control
module.
Schedule: The period to be changed
is selected here.
Activated: Scheduling for the selected
period is activated here. Set times are
Day
not affected at deactivation.
Schedule
Activated
schedule blocking 4.9.5
schedule 1
schedule 2
activated
all
mon
tues
wed
thur
fri
sat
sun
Time period
Blocking
Conflict
Day: Select which day or days of the
week the schedule is to apply to here. To remove the scheduling for a
particular day, the time for that day must be reset by setting the start time
to the same as the stop time. If the line "all" is used, all days in the period
are set for these times.
Time period: The start and stop time for the selected day for scheduling
are selected here.
Blocking: The desired blocking is selected here.
Conflict: If two settings conflict with each other a red exclamation mark
is displayed.
Blocking the compressor in the outdoor unit.
Blocking additional heat.
Chapter 3 | SMO 20 – at your service
NIBE SMO 20
59
TIP
If you wish to set similar scheduling for every day of the week start by
filling in “all” and then changing the desired days.
TIP
Set the stop time earlier than the start time so that the period extends
beyond midnight. Scheduling then stops at the set stop time the day
after.
Scheduling always starts on the date that the start time is set for.
Caution
Long term blocking can cause reduced comfort and operating economy.
Menu
4.9.6
schedule silent mode
The compressor can be scheduled to be set to "quiet mode" (the heat
pump must support this) for up to two different time periods here.
When scheduling is active the "quiet mode" symbol is shown in the main
menu on the symbol for the control module.
Schedule
Activated
schedule silent mode 4.9.6
schedule 1
schedule 2
activated
all
mon
tues
wed
thur
fri
sat
sun
Conflict
Day
Time period
Schedule: The period to be changed is selected here.
Activated: Scheduling for the selected period is activated here. Set times
are not affected at deactivation.
60
Chapter 3 | SMO 20 – at your service
NIBE SMO 20
Day: Select which day or days of the week the schedule is to apply to here.
To remove the scheduling for a particular day, the time for that day must
be reset by setting the start time to the same as the stop time. If the line
"all" is used, all days in the period are set for these times.
Time period: The start and stop time for the selected day for scheduling
are selected here.
Conflict: If two settings conflict with each other a red exclamation mark
is displayed.
TIP
If you wish to set similar scheduling for every day of the week start by
filling in “all” and then changing the desired days.
TIP
Set the stop time earlier than the start time so that the period extends
beyond midnight. Scheduling then stops at the set stop time the day
after.
Scheduling always starts on the date that the start time is set for.
Caution
Long term scheduling of "quiet mode" can cause reduced comfort and
operating economy.
Chapter 3 | SMO 20 – at your service
NIBE SMO 20
61
4 Disturbances in comfort
In most cases, the control module notes a malfunction and indicates this
with alarms and shows instructions to rectify it in the display. See "Manage
alarm" for information about managing alarms. If the malfunction does
not appear in the display, or if the display is not lit, the following
troubleshooting guide can be used.
In the event of an alarm, some kind of
malfunction has occurred, which is
indicated by the status lamp changing
from green continuously to red continuously. In addition, an alarm bell
appears in the information window.
Alarm
Low pressure alarm
alarm
info / action
reset alarm
aid mode
In the event of an alarm with a red
status lamp a malfunction has occurred that the heat pump and/or
control module cannot remedy itself. In the display, by turning the control
knob and pressing the OK button, you can see the type of alarm it is and
reset it. You can also choose to set the installation to aid mode.
info / action Here you can read what the alarm means and receive tips
on what you can do to correct the problem that caused the alarm.
reset alarm In many cases, it is sufficient to select “reset alarm” in order
for the product to revert to normal operation. If a green light comes on
after selecting “reset alarm”, the alarm has been remedied. If a red light
is still visible and a menu called “alarm” is visible in the display, the problem
that caused the alarm remains. If the alarm disappears and then returns,
contact your installer.
aid mode ”aid mode” is a type of emergency mode. This means that the
installation produces heat and/or hot water despite there being some
kind of problem. This can mean that the heat pump's compressor is not
running. In this case any electrical addition produces heat and/or hot
water.
Caution
Selecting "aid mode” is not the same as correcting the problem that
caused the alarm. The status lamp will therefore continue to be red.
If the alarm does not reset, contact your installer for suitable remedial action.
62
Chapter 4 | Disturbances in comfort
NIBE SMO 20
NOTE
Always state the product’s serial number (14 digits) when reporting a
fault.
Troubleshooting
If the operational interference is not shown in the display the following
tips can be used:
Basic actions
Start by checking the following items:
■ The switch's position.
■ Group and main fuses of the accommodation.
■ The property's earth circuit breaker.
Low hot water temperature or no hot water
This part of the fault-tracing chapter only applies if the water heater is installed in the system.
■ Closed or choked filling valve for the hot water.
– Open the valve.
■ Mixing valve (if there is one installed) set too low.
– Adjust the mixer valve.
■ Control module in incorrect operating mode.
– If mode "manual" is selected, select "addition".
■ Large hot water consumption.
– Wait until the hot water has heated up. Temporarily increased hot
water capacity (temporary lux) can be activated in menu 2.1.
■ Too low hot water setting.
– Enter menu 2.2 and select a higher comfort mode.
■ Too low or no operating prioritisation of hot water.
– Enter menu 4.9.1 and increase the time for when hot water is to be
prioritised.
Low room temperature
■ Closed thermostats in several rooms.
– Set the thermostats to max, in as many rooms as possible. Adjust the
room temperature via menu 1.1, instead of choking the thermostats.
Chapter 4 | Disturbances in comfort
NIBE SMO 20
63
■ Control module in incorrect operating mode.
– Enter menu 4.2. If mode "auto" is selected, select a higher value on
"stop heating" in menu 4.9.2.
– If mode "manual" is selected, select "heating". If this is not enough,
select "addition".
■ Too low set value on the automatic heating control.
– Enter menu 1.1 "temperature" and adjust the offset heating curve up.
If the room temperature is only low in cold weather the curve slope
in menu 1.9.1 "heating curve" needs adjusting up.
■ Too low or no operating prioritisation of heat.
– Enter menu 4.9.1 and increase the time for when heating is to be pri-
oritised.
■ "Holiday mode" activated in menu 4.7.
– Enter menu 4.7 and select "Off".
■ External switch for changing the room heating activated.
– Check any external switches.
■ Air in the climate system.
– Vent the climate system.
■ – Open the valves (contact your installer for assistance in finding them).
High room temperature
■ Too high set value on the automatic heating control.
– Enter menu 1.1 (temperature) and reduce the offset heating curve. If
the room temperature is only high in cold weather the curve slope in
menu 1.9.1 "heating curve" needs adjusting down.
■ External switch for changing the room heating activated.
– Check any external switches.
Low system pressure
■ Not enough water in the climate system.
– Fill the climate system with water and check for leaks. In event of re-
peated filling, contact the installer.
The compressor does not start
■ There is no heating requirement.
– SMO 20 does not call on heating or hot water.
■ Compressor blocked due to the temperature conditions.
– Wait until the temperature is within the product’s working range.
64
Chapter 4 | Disturbances in comfort
NIBE SMO 20
■ Minimum time between compressor starts has not been reached.
– Wait 30 minutes and then check if the compressor has started.
■ Alarm tripped.
– Follow the display instructions.
Chapter 4 | Disturbances in comfort
NIBE SMO 20
65
Additional heating only
If you are unsuccessful in rectifying the fault and are unable to heat the
house, you can, whilst waiting for assistance, continue running the heat
pump in ”add. heat only”. This means that additional heating only is used
to heat the house.
Set the installation to additional heat mode
1. Go to menu 4.2 op. mode.
2. Mark ”add. heat only” using the control knob and then press the OK
button.
3. Return to the main menus by pressing the Back button.
Caution
When commissioning without NIBE air/water heat pump an alarm
communication error may appear in the display.
The alarm is reset if the relevant heat pump is deactivated in menu 5.2.2
("installed heat pump").
66
Chapter 4 | Disturbances in comfort
NIBE SMO 20
5 Technical data
Detailed technical specifications for this product can be found in the installation manual (www.nibe.eu).
Chapter 5 | Technical data
NIBE SMO 20
67
6 Glossary
Additional heat
The additional heat is the heat produced in addition to the heat supplied
by the compressor in your heat pump. Additional heaters can be for example, immersion heater, electric heater, solar power system,
gas/oil/pellet/wood burner or district heating.
Calculated flow line temperature
The temperature that the heat pump calculates that the heating system
requires for an optimum accommodation temperature. The colder the
outdoor temperature, the higher the calculated supply temperature.
Circulation pump
Pump that circulates liquid in a pipe system.
Climate system
Climate systems can also be called heating systems. The building is heated
using radiators, under floor coils or convector fans.
Compressor
Compresses the gas state refrigerant. When the refrigerant is compressed,
the pressure and the temperature increase.
Condenser
Heat exchanger where the hot gas state refrigerant condenses (cooled
and becomes a liquid) and releases heat energy to the house heating and
hot water systems.
COP
If a heat pump has COP of 5, this means that you only pay for a fifth of
your heating demand. This is the efficiency of the heat pump. This is
measured at different measurement values, e.g.: 7 / 45 where 7 stands
for the outdoor temperature and where 45 stands for how many degrees
the supply temperature is maintaining.
68
Chapter 6 | Glossary
NIBE SMO 20
Disturbances in comfort
Disturbances in comfort are undesirable changes to the hot water/indoor
comfort, for example when the temperature of the hot water is too low
or if the indoor temperature is not at the desired level.
A malfunction in the heat pump can sometimes be noticed in the form of
a disturbance in comfort.
In most cases, the heat pump notes operational interference and indicates
this with alarms and shows instructions in the display.
Domestic hot water
The water one showers in for example.
DOT, dimensioned outdoor temperature
The dimensioned outdoor temperature differs depending on where you
live. The lower the dimensioned outdoor temperature, the lower the value
should be selected on "selecting a heat curve".
Efficiency
A measurement of how effective the heat pump is. The higher the value
is the better it is.
Electrical addition
This is electricity that, for example, an immersion heater uses as addition
during the coldest days of the year to cover the heating demand that the
heat pump cannot manage.
Filtering time
Indicates the time the average outdoor temperature is calculated on.
Flow pipe
The line in which the heated water is transported from the heat pump out
to the house heating system (radiators/heating coils).
Heat exchanger
Device that transfers heat energy from one medium to another without
mixing mediums. Examples of different heat exchangers are evaporators
and condensers.
Heat factor
Measurement of how much heat energy the heat pump gives off in relation
to the electric energy it needs to operate. Another term for this is COP.
Chapter 6 | Glossary
NIBE SMO 20
69
Heating curve
The heating curve determines which heat the heat pump is to produce
depending on the temperature outdoors. If a high value is selected, this
tells the heat pump that it must produce a lot of heat when it is cold outdoors in order to achieve a warm indoor temperature.
Heating medium
Hot liquid, usually normal water, which is sent from the heat pump to the
house climate system and makes the accommodation warm. The heating
medium also heats the hot water through the double jacketed tank or coil
tank.
Heating medium side
Pipes to the house’s climate system and condenser make up the heating
medium side.
Mixing valve
A valve that mixes the cold water with the hot water leaving the heater.
Outside sensor
A sensor that is located outdoors. This sensor tells the heat pump how hot
it is outdoors.
Pressostat
Pressure switch that triggers an alarm and/or stops the compressor if nonpermitted pressures occur in the system. A high pressure pressostat trips
if the condensing pressure is too great. A low pressure pressostat trips if
the evaporation pressure is too low.
Radiator
Another word for heating element. They must be filled with water in order
to be used with SMO 20.
Return pipe
The line in which the water is transported back to the heat pump from
the house heating system (radiators/heating coils).
Return temp
The temperature of the water that returns to the heat pump after releasing
the heat energy to the radiators/heating coils.
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Chapter 6 | Glossary
NIBE SMO 20
Room sensor
A sensor that is located indoors. This sensor tells the heat pump how hot
it is indoors.
Safety valve
A valve that opens and releases a small amount of liquid if the pressure is
too high.
Shuttle valve
A valve that can send liquid in two directions. A shuttle valve that enables
liquid to be sent to the climate system, when the heat pump produces
heating for the house, and to the hot water heater, when the heat pump
produces hot water.
Supply temperature
The temperature of the heated water that the heat pump sends out to
the heating system. The colder the outdoor temperature, the higher the
supply line temperature becomes.
Water heater
Container where domestic water is heated. Is located somewhere outside
the heat pump.
Chapter 6 | Glossary
NIBE SMO 20
71
7 Item register
A
Adjust the installation, 45
Alarm, 62
B
Back button, 10
C
Contact with SMO 20, 9
Display unit, 9
Menu system, 12
Control knob, 10
Control module's function, 9
D
Display, 10
Display unit, 9
Back button, 10
Control knob, 10
Display, 10
OK button, 10
Status lamp, 10
Switch, 11
Disturbances in comfort, 62
Alarm, 62
Manage alarm, 62
Only additional heat, 66
Troubleshooting, 63
G
Get information, 41
Glossary, 68
H
Help menu, 17
I
Important information
Installation data, 4
Safety information, 5
Serial number, 7
SMO 20 – An excellent choice, 8
Installation data, 4
M
Maintenance of SMO 20, 18
Regular checks, 18
Saving tips, 18
Manage alarm, 62
72
Chapter 7 | Item register
Menu system, 12
Help menu, 17
Operation, 14
Scroll through the windows, 17
Selecting menu, 14
Selecting options, 14
Setting a value, 15
Use the virtual keyboard, 16
O
OK button, 10
Only additional heat, 66
Operation, 14
P
Power consumption, 18
R
Regular checks, 18
S
Safety information, 5
Saving tips, 18
Power consumption, 18
Scroll through the windows, 17
Selecting menu, 14
Selecting options, 14
Serial number, 7
Set the hot water capacity, 36
Set the indoor climate, 20
Setting a value, 15
SMO 20 – An excellent choice, 8
SMO 20 – at your service, 20
Adjust the installation, 45
Get information, 41
Set the hot water capacity, 36
Set the indoor climate, 20
Status lamp, 10
Switch, 11
T
Technical data, 67
The control module – the heart of the
house, 9
Troubleshooting, 63
U
Use the virtual keyboard, 16
NIBE SMO 20
WS name: -Gemensamt
WS version: a422
WS release date: 2017-09-22 14:29
Publish date: 2017-12-01 08:23
NIBE Energy Systems Ltd
3C Broom Business Park
Bridge Way
Chesterfield S41 9QG
Phone 0845 095 1200
Fax 0845 095 1201
info@nibe.co.uk
www.nibe.co.uk
231763
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