Nibe ERS S10-400 User guide

IHB EN 2110-3
531299
INSTALLER MANUAL
HRV unit
NIBE ERS S10-400
LEK

S-series
S1255
F-series

41 Important information
4Safety information
4Symbols
5Marking
5Serial number
5Recovery
6Inspection of the installation
72 Delivery and handling
7Transport and storage
7Supplied components
7Compatible products
7Removing the covers
7Removing parts of the insulation
8Assembly
9Mounting
103 Design of the HRV unit
11Pipe connections
11Sensors etc.
11Electrical components
11Ventilation
11Miscellaneous
124 Ventilation connections
12Condensation water drain
13General ventilation connections
13Ventilation flow
13Adjusting ventilation
13Dimensions and ventilation connections
145 Electrical connection
14Overview accessory board (AA5)
14Supply
15Connecting to main product
176 Commissioning and adjusting
17Preparations
17Filling
17Start-up and inspection
187 Program settings
18Start guide
18Menu system
218 Disturbances in comfort
21Troubleshooting
229 Accessories
2310 Technical data
23Dimensions
24Technical specifications
25Energy labelling
26Electrical circuit diagram
50Contact information
3Chapter |NIBE ERS S10-400
S
S-SERIES
Table of Contents

Safety information
This manual describes installation and service proced-
ures for implementation by specialists.
The manual must be left with the customer.
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 super-
vision 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.
This is an original manual. It may not be
translated without the approval of NIBE.
Rights to make any design or technical
modifications are reserved.
©NIBE 2021.
Symbols
NOTE
This symbol indicates danger to person or ma-
chine .
Caution
This symbol indicates important information
about what you should consider when installing
or servicing the installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
NIBE ERS S10-400Chapter 1 | Important information4
S
Important information

Marking
The CE mark is obligatory for most products
sold in the EU, regardless of where they are
made.
CE
Classification of enclosure of electro-technical
equipment.
IP X1B
Read the User Manual.
Serial number
The serial number can be found at the top right inside
the front hatch.
LEK
LEK
Serial number
Caution
You need the product's serial number for servi-
cing and support.
Recovery
Leave the disposal of the packaging to the in-
staller who installed the product or to special
waste stations.
When disposing of the product, its constituent
materials and components, e.g. compressors,
fans, circulation pumps and circuit boards, must be dis-
posed of at a special waste station or dealer who
provides this type of service.
To access the separate components, refer to the section
that shows the construction of the product. No special
tools are required for access.
Improper disposal of the product by the user results in
administrative penalties in accordance with current le-
gislation.
5Chapter 1 | Important informationNIBE ERS S10-400
S

Inspection of the installation
Current regulations require the heating installation to be inspected before it is commissioned. The inspection must
be carried out by a suitably qualified person. In addition, fill in the page for the installation data in the User Manual.
DateSigna-
ture
NotesDescription
✔
Electricity (page 14)
Connections
Main voltage
Fuses property
Earth circuit-breaker
NIBE ERS S10-400Chapter 1 | Important information6
S

Transport and storage
ERS S10 should be transported and stored in the dry.
Supplied components
LEK
Rail for wall
mounting
Compatible products
• SMO S40• VVM S320
• VVM S325
• S1155
• S1255
Removing the covers
FRONT COVER
1. Lift the front cover upwards slightly.
2. Pull the hatch towards yourself.
LEK
Removing parts of the
insulation
FRONT INSULATION
The insulation in the front must be removed to access
the internal parts.
1. Remove the air filter.
2. Slacken off the screws that hold the insulation in
place.
7Chapter 2 | Delivery and handlingNIBE ERS S10-400
S
Delivery and handling

3. Pull the insulation straight out. Assembly
ERS S10 is installed using the enclosed rail on a solid
wall. Noise from the fans can be transferred to the rail.
•Install with its back to an outside wall, ideally in a room
where noise does not matter, in order to eliminate
noise problems. If this is not possible, avoid placing
it against a wall behind a bedroom or other room
where noise may be a problem.
• Wherever the unit is located, walls to sound sensitive
rooms should be fitted with sound insulation.
• Condensation water comes from the HRV unit. A
condensation outlet with a water seal must be in-
stalled and routed to an internal drain.
• The HRV unit’s installation area always has to have a
temperature of at least 10 °C and max. 35 °C.
INSTALLATION AREA
Leave a free space of 800 mm in front of the product.
800
NOTE
Ensure that there is sufficient space (300 mm)
above the HRV unit for installing ventilation
hoses.
NIBE ERS S10-400Chapter 2 | Delivery and handling8
S

Mounting
When hanging on a wooden wall, a vibration damper is
recommended to prevent vibration being transferred.
1. Install the enclosed bracket to the wall.
2. Install ERS S10 on the brackets.
LEK
3. Screw ERS S10 firmly into place on the bracket.
LEK
9Chapter 2 | Delivery and handlingNIBE ERS S10-400
S

LEK
GQ2
XL31
XL34 XL32
XL33
AA5
GQ3
WM5
EP26
XL40
HQ11
HQ10
QN37
W102
W101
BT21
BT22
BT20
BT23
PZ1
NIBE ERS S10-400Chapter 3 | Design of the HRV unit10
S
Design of the HRV unit

Pipe connections
Ventilation connection, exhaust airXL31
Ventilation connection, extract airXL32
Ventilation connection, supply airXL33
Ventilation connection, outdoor airXL34
Condensation water drainXL40
Sensors etc.
Temperature sensor, exhaust airBT20
Temperature sensor, extract airBT21
Temperature sensor, supply airBT22
Temperature sensor, outdoor airBT23
Electrical components
Accessory cardAA5
Cord with connection plugW101
Communication cableW102
Ventilation
Heat exchangerEP26
Exhaust air fanGQ2
Supply air fanGQ3
Exhaust air filterHQ10
Supply air filterHQ11
Bypass damperQN37
Miscellaneous
Type platePZ1
Condensation water troughWM5
Designations according to standard EN 81346-2.
11Chapter 3 | Design of the HRV unitNIBE ERS S10-400
S

Condensation water
drain
ERS S10 can produce several litres of condensation
water per day. It is therefore important that the condens-
ation outlet is correctly executed and the HRV unit in-
stalled horizontally.
Check that the water seal is airtight and firmly in posi-
tion. The connection must be made so that the user can
check and top up the water seal, without opening ERS
S10.
The condensation outlet is adapted for the type of water
seal that is traditionally used for a wash basin (connec-
tion G32).
CLEANING THE CONDENSATION WATER
DRAIN
Condensation forms when ERS S10 is working. This
condensation is led off and collected in the condensation
water drain. Apart from water, a certain amount of dust
and particles also collect there.
Check regularly that the condensation water drain and
any floor drains are not blocked; water must be able to
run through freely. Clean, if necessary.
NOTE
During operation, negative pressure arises in
the HRV unit, which means that a water
column of at least 100 mm must be guaranteed
in the water seal.
100
NIBE ERS S10-400Chapter 4 | Ventilation connections12
S
Ventilation connections

General ventilation
connections
• Ventilation installation must be carried out in accord-
ance with current norms and directives.
• Provision must be made for inspection and cleaning
of the duct.
• The air duct system must be a minimum of air tight-
ness class B.
• To prevent fan noise being transferred to the ventila-
tion devices, install silencers in suitable locations in
the duct system.
• The extract air and outdoor air ducts are insulated us-
ing diffusion-proof material (at least PE30 or equival-
ent) along their entire lengths.
• Ensure that the condensation insulation is fully sealed
at any joints and/or at lead-in nipples, silencers, roof
cowls or similar.
• The air must be routed to the outdoor air duct through
an outer wall grille in the facade. The outer wall grille
must be installed so that it is protected from the
weather and must be designed so that no rainwater
and/or snow can penetrate the facade or follow the
air into the duct.
• When positioning the outdoor air and extract air
hood/grille, bear in mind that the two air flows must
not short circuit to prevent the extract air from being
drawn into ERS S10 again.
• A duct in a masonry chimney stack must not be used
for extract air or outdoor air.
NOTE
To ensure a sealed connection to ERS S10, the
supplied hose clips must be used for connect-
ing the air ducts.
EXHAUST AIR DUCT /KITCHEN FAN
Exhaust air duct (kitchen fan) must not be connected to
ERS S10.
To prevent food vapour being transferred to ERS S10
the distance between the kitchen fan and the exhaust
air device must be considered. The distance should not
be less than 1.5 m, but this can vary between different
installations.
Always use a kitchen fan when cooking.
Ventilation flow
Connect ERS S10 so that all the exhaust air, except kit-
chen duct air (kitchen fan), passes through the heat ex-
changer (EP26) in the product.
The ventilation flow must comply with the applicable
national standards.
The supply air flow must be lower than the exhaust air
flow to prevent over pressure in the house.
Set the ventilation capacity in the main product’s menu
system (menu 7.1.4).
Adjusting ventilation
To obtain the necessary air exchange in every room of
the building, the exhaust air valve and the supply air inlet
as well as the fans in the HRV unit must be correctly
positioned and adjusted.
Immediately after installation adjust the ventilation so
that it is set according to the projected value of the
house.
Incorrect adjustment of the ventilation may lead to re-
duced installation efficiency and thus poorer operating
economy, a poorer indoor climate and moisture damage
in the building.
Dimensions and
ventilation
connections
900 44
600
4 x Ø160
G32
308146 146
278206 146
630
Exhaust air
Outdoor air Extract air
Supply
air
13Chapter 4 | Ventilation connectionsNIBE ERS S10-400
S

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.
ERS S10 must not be powered during installa-
tion.
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.
• To prevent interference, sensor cables to external
connections must not be laid close to high voltage
cables.
• The minimum area of communication and sensor
cables to external connections must be 0.5 mm² up
to 50 m, for example EKKX, LiYY or equivalent.
For electrical wiring diagram, see page 26.
Overview accessory
board (AA5)
ON
12345678
-X9
-X2
24 20212223 1516171819 1011121314 56789 1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
234
-X8
-X4
-X10
-X1
AA5-S2
AA5-X4
Supply
ERS S10 is connected to a earthed single-phase wall
socket or a permanent installation. For permanent install-
ations, ERS S10 must be preceded by a circuit breaker
with at least a 3 mm breaking gap.
NIBE ERS S10-400Chapter 5 | Electrical connection14
S
Electrical connection

Connecting to main
product
CONNECTING TO THE HEAT PUMP
ERS S10 contains an accessory board (AA5) that con-
nects directly to the main product’s PCB (terminal block
AA2-X30).
The communication cable (W102) is connected to the
accessory board (AA5) from the factory.
If more accessories are to be connected, or are already
installed, the boards are connected in series.
Because there can be different connections for accessor-
ies with accessory board (AA5), you should always read
the instructions in the manual for the accessory that is
to be installed.
B A GND +12V
AA2-X30
1234
AA5-X4
1
2
3
4
5
6
7
8
A
B
GND
A
B
GND
AA5-X4
1
2
3
4
5
6
7
8
A
B
GND
A
B
GND
Main product
Accessory 1
Accessory 2
The terminal block (AA2-X30) is upright on S1155.
CONNECTING TO CONTROL MODULE
ERS S10 contains an accessory board (AA5) that con-
nects directly to the control module on its joint board
(terminal block AA100-X9).
The communication cable (W102) is connected to the
accessory board (AA5) from the factory.
If more accessories are to be connected, or are already
installed, the boards are connected in series.
Because there can be different connections for accessor-
ies with accessory board (AA5), you should always read
the instructions in the manual for the accessory that is
to be installed.
+12V
GND
B
A
AA100-X9
7
8
9
10
11
12
AA5-X4
1
2
3
4
5
6
7
8
A
B
GND
A
B
GND
AA5-X4
1
2
3
4
5
6
7
8
A
B
GND
A
B
GND
Accessory 1
Accessory 2
SMO S40
15Chapter 5 | Electrical connectionNIBE ERS S10-400
S

DIP SWITCH
The DIP switch (S2) on the accessory board (AA5) must
be set as follows.
You can have up to 4 ERS S10 in the same installation,
each ERS S10 is given a unique setting.
ON
1 2 3 4 5 6 7 8
ERS S10 no. 2
ON
1 2 3 4 5 6 7 8
ERS S10 no. 1
ON
1 2 3 4 5 6 7 8
ERS S10 no. 4
ON
1 2 3 4 5 6 7 8
ERS S10 no. 3
NIBE ERS S10-400Chapter 5 | Electrical connection16
S

Preparations
• Check the miniature circuit-breaker (FC1) in the main
product. It may have tripped during transportation.
• Check that the air filters are clean, they can become
dirty after installation.
Filling
• Check that there is water in the water seal, fill if ne-
cessary.
Start-up and
inspection
SETTING THE VENTILATION
The ventilation must be set according to applicable
standards. Adjust the supply air flow to guarantee a
negative pressure.
The settings are made in menu 7.1.4.
Even if ventilation is roughly set at installation it is im-
portant that a ventilation adjustment is ordered and
permitted.
Caution
An incorrectly set ventilation flow can damage
the house and may also increase energy con-
sumption.
NOTE
Order a ventilation adjustment to complete the
setting.
Ventilation capacity
00 10 20 30 40 50 60 70 80 90 100 110 120
100
200
300
400
500
600
Tillg ngligt tryck
(Pa)
Flöde
(l/s)
30%
100%
80%
60%
40%
50%
70%
90%
Available pressure
Airflow
Fan rating1
0100 20 30 40 50 60 70 80 90 100 110 120 130
10
20
30
40
50
60
70
80
90
Effekt
(W)
Fl de
(l/s)
30%
100%
80%
60%
50%
90%
70%
40%
Output
Airflow
1The diagram shows the power consumption per fan.
17Chapter 6 | Commissioning and adjustingNIBE ERS S10-400
S
Commissioning and adjusting

Activating ERS S10 can be performed via the start guide
or directly in the menu system.
The main product’s software must be the latest version.
Caution
Also see the Installer Manual for the main
product.
Start guide
The start guide appears upon first start-up after heat
pump installation, but is also found in menu 7.7.
Menu system
If you do not make all settings via the start guide or need
to change any of the settings, this can be done in the
menu system.
MENU 7.2.1 -ADD/REMOVE ACCESSORIES
Activating/deactivating of accessories.
Select “ERS S10/20/30 1".
MENU 7.2.11 - VENT. HEAT EXCHANGER
(ERS)
Lowest extract air temp.
Setting range: 0 – 10 °C
Product
Setting range: ERS10, ERS20/ERS30
Action external blocking
Setting range: Level monitor/Blocked/Off
Lowest extract air temp.: Set the lowest extract air
temperature to prevent the build-up of ice on the heat
exchanger.
Action external blocking: ERS S10 has no built-in level
monitor, although it is possible to connect an external
one via AUX; the fans stop when the AUX input is
closed. When "level monitor" is selected, the product
issues an alert when the input closes; when "blocking"
is selected, text is displayed instead in operating info.
MENU 1.2.1 - FAN SPEED
Alternatives: normal and speed 1 – speed 4
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 menu 1.2.5.
The fan speed is shown in brackets (in percent) after
each speed alternative.
MENU 1.2.2 - NIGHT COOLING
Night cooling
Setting range: on/off
Start temp exhaust air
Setting range: 20 – 30 °C
Min. diff. ind. temp. - outd. temp.
Setting range: 3 – 10 °C
Night cooling during heating
Setting range: on/off
Here, you can activate night cooling. When the temper-
ature in the building is high, and the outdoor temperature
is low, a cooling effect can be obtained by forcing the
ventilation. When night cooling is activated, the fans run
at speed 4. For activated night cooling, the bypass
damper (QN37) is open.
Start temp exhaust air: Here, you set the exhaust air
temperature at which night cooling will start.
Min. diff. ind. temp. - outd. temp.: If the temperature
difference is greater than the set value for "Min. diff.
ind. temp. - outd. temp.", and the exhaust air temperat-
ure is higher than the set value for "Start temp exhaust
air", the ventilation operates at speed 4 until one of these
conditions is no longer valid.
NIBE ERS S10-400Chapter 7 | Program settings18
S
Program settings

Night cooling during heating: It is possible to have night
cooling during the time heating is permitted.
Caution
Night cooling can only be used when heating
is not permitted; does not apply when "Recov-
ery stop during heating" is selected (see menu
1.2.7).
MENU 1.2.5 - FAN RETURN TIME
speed 1 – speed 4
Setting range: 1 – 24 h
Here, you select the return time for the temporary speed
change (speed 1 – speed 4) of the ventilation in menu
1.2.1.
Return time is the time taken before the ventilation
speed returns to normal speed.
MENU 1.2.6 - FILTER CLEANING INTERVAL
Months between filter cleaning
Setting range: 1 – 24 months
The filters in ERS S10 are of a type that should not be
cleaned, they have to be replaced instead. These must
be replaced regularly; how often depends e.g. on the
amount of dust in the ventilation air. Test to find out
what is most appropriate for your installation.
Set the interval for the reminder in this menu.
The menu shows the time remaining until the next re-
minder, and you can also reset active reminders.
MENU 1.2.7 - VENTILATION RECOVERY
Temp stop of heat recovery
Setting range: 5 – 30 °C
Min. diff. ind. temp. - outd. temp.
Setting range: 2 – 10 °C
Recovery stop during heating
Setting range: on/off
Cooling recovery
Setting range: on/off
St temp sup air cooled by exh air
Setting range: -20.0 – 41.0 °C
Min diff outd and exhaust air
Setting range: 3.0 – 10.0 °C
When there is no heating demand, and the outdoor
temperature is approaching the indoor temperature,
heat recovery is stopped to prevent the house from
being heated further.
Caution
Only the heat recovery is stopped, not the
ventilation.
Temp stop of heat recovery: Here, you set the outside
temperature at which ventilation recovery is to stop.
Min. diff. ind. temp. - outd. temp.: Here, you set the
temperature difference between the indoor air and the
outdoor air that is required in order for ventilation recov-
ery to start.
Recovery stop during heating: Stopping ventilation re-
covery during the time heating is permitted is possible.
Cooling recovery: When there is no heating demand,
ventilation recovery is stopped to prevent the house
from being heated further. When it is warm indoors and
even warmer outdoors, ERS S10 can be used to prevent
the house from heating up more than necessary. During
cooling recovery, the cooler air from the house is used
to cool the incoming air.
"Cooling recovery" is started when the exhaust air tem-
perature is a certain number of degrees below the out-
door temperature and it is warm outside.
St temp sup air cooled by exh air: Here, you set the
outdoor temperature at which cooling recovery will start.
Caution
"St temp sup air cooled by exh air" cannot be
lower than "Stop heating" in menu 7.1.10.2 –
"Auto mode setting".
Min diff outd and exhaust air: Here, you set the temper-
ature difference between outdoor air and exhaust air
that is required in order for cooling recovery to start.
MENU 7.1.4.1 - FAN SPEED, EXHAUST AIR
Normal and Fan speed 1 – Fan speed 4
Setting range: 0 – 100 %
Set the speed for the five different selectable speeds
for the fan here.
MENU 7.1.4.2 - FAN SPEED, SUPPLY AIR
Normal and Fan speed 1 – Fan speed 4
Setting range: 0 – 100%
Set the speed for the five different selectable speeds
for the fan here.
19Chapter 7 | Program settingsNIBE ERS S10-400
S

MENU 6.2 - SCHEDULING
In this menu, you schedule repeated changes of ventil-
ation.
Caution
A schedule repeats according to the selected
setting (e.g. every Monday) until you go into
the menu and switch it off.
MENU 7.4 - SELECTABLE IN/OUTPUTS
Select here whether you want to activate fan speed for
the relevant AUX input.
NIBE ERS S10-400Chapter 7 | Program settings20
S