Nibe ERS 10-500 User guide

Installer manual
LEK
NIBE™ ERS 10-500
Ventilation heat exchanger
IHB GB 1622-1
331802

Table of Contents
41 Important information
4Safety information
4Serial number
4Recovery
4Country specific information
5Contact information
62 Delivery and handling
6Transport and storage
6Assembly
6Supplied components
7Removing the covers
7Removing parts of the insulation
8
3 The ventilation heat exchanger
design
104 Pipe and ventilation connections
10Dimensions and pipe connections
10Mounting
10Condensation water drain
11General ventilation connections
11Preheating the outdoor air
11Ventilation flow
11Adjusting ventilation
125 Electrical connection
12Connecting to main product
146 Commissioning and adjusting
14Preparations
14Filling and venting
14Start-up and inspection
157 Program settings
15Start guide
15Menu system
168 Disturbances in comfort
16Info-menu
16Manage alarm
16Troubleshooting
179 Service
17Water seal for condensation water
17Heat exchanger
1810 Accessories
1911 Technical data
19Dimensions
20Technical specifications
21Energy labelling
22Electrical circuit diagram
23Index
3Table of Contents |NIBE™ ERS 10-500

Safety information
This manual describes installation and service procedures
for implementation by specialists.
This appliance can be used by children
aged from 8 years and above and per-
sons 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 under-
stand 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 2016.
Symbols
NOTE
This symbol indicates danger to machine or
person.
Caution
This symbol indicates important information
about what you should observe when maintain-
ing your installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Marking
The CE marking means that NIBE ensures that the
product meets all regulations that are placed on it based
on relevant EU directives. The CE mark is obligatory for
most products sold in the EU, regardless where they are
made.
Serial number
The serial number can be found at the top right inside
the front hatch.
LEK
Serial number
LEK
Caution
Always give the product's serial number when
reporting a fault.
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, the constituent
materials and components, such as compressors,
fans, circulation pumps and circuit boards, must be dis-
posed of at a special waste station or at a 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 legis-
lation.
Country specific information
Installer manual
This installer manual must be left with the customer.
NIBE™ ERS 10-500Chapter 1 | Important information4
1 Important information

Contact information
KNV Energietechnik GmbH, Gahberggasse 11, 4861 Schörfling
Tel: [phone] Fax: [phone] E-mail: [e-mail] www.knv.at
AT
NIBE Wärmetechnik c/o ait Schweiz AG, Industriepark, CH-6246 Altishofen
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.ch
CH
Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad Jizerou
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.cz
CZ
NIBE Systemtechnik GmbH, Am Reiherpfahl 3, 29223 Celle
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.de
DE
Vølund Varmeteknik A/S, Member of the Nibe Group, Brogårdsvej 7, 6920 Videbæk
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.volundvt.dk
DK
NIBE Energy Systems OY, Juurakkotie 3, 01510 Vantaa
Puh: 09-274 697 0 Fax: [phone] E-mail: inf[email protected] www.nibe.fi
FI
NIBE Energy Systems France Sarl, Zone industrielle RD 28, Rue du Pou du Ciel, 01600 Reyrieux
Tel : [phone] Fax : [phone] E-mail: inf[email protected] www.nibe.fr
FR
NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way, Chesterfield S41 9QG
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.co.uk
GB
NIBE Energietechniek B.V., Postbus 634, NL 4900 AP Oosterhout
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibenl.nl
NL
ABK AS, Brobekkveien 80, 0582 Oslo, Postadresse: Postboks 64 Vollebekk, 0516 Oslo
Tel. sentralbord: [phone] E-mail: [email protected] www.nibeenergysystems.no
NO
NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOK
Tel: [phone] Fax: [phone] E-mail: [e-mail] www.biawar.com.pl
PL
© "EVAN" 17, per. Boynovskiy, Nizhny Novgorod
Tel./fax [phone] E-mail: inf[email protected] www.nibe-evan.ru
RU
NIBE AB Sweden, Box 14, Hannabadsvägen 5, SE-285 21 Markaryd
Tel: [phone] Fax: [phone] E-mail: inf[email protected] www.nibe.se
SE
For countries not mention in this list, please contact Nibe Sweden or check www.nibe.eu for more information.
5Chapter 1 | Important informationNIBE™ ERS 10-500

Transport and storage
ERS 10 should be transported and stored in the dry.
Assembly
ERS 10 is installed on 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.
■Because water comes from ERS 10, the condensation
drain with the necessary water seal must be led to the
internal drain.
Installation area
Leave free space of 800 mm in front of the product.
800
NOTE
Ensure that there is sufficient space (300 mm)
above the exhaust air module for installing
ventilation hoses.
Supplied components
LEK
Rail for wall mounting
NIBE™ ERS 10-500Chapter 2 | Delivery and handling6
2 Delivery and handling

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.
3. Pull the insulation straight out.
7Chapter 2 | Delivery and handlingNIBE™ ERS 10-500

LEK
GQ2
AZ30
XL31
XL34 XL32
XL33
AA5
GQ3
WM5
EP26
XL40
HQ11
HQ10
UB1
QN37
W2
W1
NIBE™ ERS 10-500Chapter 3 | The ventilation heat exchanger design8
3 The ventilation heat exchanger design

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
Heat exchangerEP26
Cable glandUB1
Cord with connection plugW1
Control cableW2
Ventilation
Heat exchangerEP26
Fan, exhaust airGQ2
Fan, supply airGQ3
Air filter, exhaust air (Coarse filter class G4)HQ10
Air filter, supply air (Fine filter class F7)HQ11
Bypass damperQN37
Miscellaneous
Type platePF1
Condensation water troughWM5
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
9Chapter 3 | The ventilation heat exchanger designNIBE™ ERS 10-500

Dimensions and pipe
connections
900 44
600
4 x Ø160
Ø32
308146 146
278188 146
612
32
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 10 on the brackets.
LEK
LEK
Condensation water drain
ERS 10 can produce several litres of condensation water
per day. It is therefore important that the condensation
drain is correctly laid out and the unit is installed level.
Check that the water seal is airtight and firmly in position.
The connection must be made so that the user can check
that the water seal is functioning, without opening ERS
10.
Installation from the water seal and forward to the drain
must be carried out with a necessary fall of 1 %. If the
unit is installed in a cold area, the condensation water
drain pipe must be insulated so that the condensation
water in the pipe does not freeze. It is also recommended
that the water seal is mounted in a heated area to
guarantee that the water in the water seal does not
freeze.
If it cannot be guaranteed that insulation will protect
the condensation water drain pipe against frost, a ther-
mostat controlled heating cable must be installed around
the condensation water drain pipe.
NOTE
During operation there is a negative pressure
in the unit which means that a water column of
at least 100 mm must be guaranteed in the
water seal.
100
NIBE™ ERS 10-500Chapter 4 | Pipe and ventilation connections10
4 Pipe and ventilation connections

General ventilation connections
Ventilation installation must be carried out in accordance
with current norms and directives.
To prevent fan noise being transferred to the ventilation
devices, install silencers in the ducts. This is especially
important if there are ventilation devices in bedrooms.
The extract air and outdoor air ducts are to be insulated
using diffusion-proof material (PE30) along their entire
lengths. Ensure that the condensation insulation is sealed
at any joints and/or at lead-in nipples, silencers, roof
cowls or similar. Provision must be made for inspection
and cleaning of the duct. Make sure that there are no
reductions in cross-sectional area in the form of creases
etc., since this will reduce the ventilation capacity. The
air duct system must be a minimum of air tightness class
B.
All joins in the ducting must be sealed to prevent leak-
age.
It is recommended that the outdoor air inlet be located
on the north or east side of the house to achieve optimal
comfort in the house.
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 exhaust air from being sucked
in again.
Exhaust air duct /kitchen fan
Exhaust air duct (kitchen fan) must not be connected to
ERS 10.
To prevent cooking odours from being led to the ERS
10, the distance between the kitchen fan and the exhaust
air valve must be observed. The distance must not be
less than 1.5 m, but may vary between different installa-
tions.
Always use a kitchen fan when cooking.
NOTE
A duct in a masonry chimney stack must not be
used for extract air.
900 44
600
4 x Ø160
Ø32
308146 146
278188 146
612
Exhaust air
Outdoor air Extract air
Supply air
Preheating the outdoor air
If the extract air temperature is too low the supply air
fan slows down to prevent the condensation water in
the heat exchanger freezing.
To prevent this from happening too often in areas with
colder climates, an electrical air heater EAH 10 (EB17)
must be installed in the outdoor air duct as illustrated.
This heats the incoming outdoor air so that the extract
air temperature does not fall to the stated level.
EB17BT23
ERS
The outdoor air sensor (BT23) in ERS 10 must be discon-
nected and replaced with the one supplied with EAH 10.
See the Installation manual for EAH 10 for further instruc-
tions.
Ventilation flow
Connect ERS 10 so that all exhaust air except exhaust
kitchen air (kitchen fan) passes the heat exchanger (EP26)
in the heat pump. The lowest 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.
Ensure that the ventilation openings are not blocked.
Set the ventilation capacity in the main product's menu
system (menu 5.1.5).
Adjusting ventilation
To obtain the necessary air exchange in every room of
the house, the exhaust air valve and the supply air inlet
as well as the fans in the ventilation heat exchanger 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.
A defective ventilation installation may lead to reduced
installation efficiency and thus poorer operating eco-
nomy, and may result in moisture damage to the house.
11Chapter 4 | Pipe and ventilation connectionsNIBE™ ERS 10-500

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 10 must not be powered during installation.
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.
NOTE
Communication and/or sensor cables to external
connections must not be laid closer than 20 cm
from high voltage cables, to prevent interfer-
ence at any splices.
For electrical wiring diagram, see page 22.
Connecting to main product
If several accessories are to be connected, or are already
connected, the following cards must be connected in
series with the previous card.
Use cable type LiYY, EKKX or similar.
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
The communication cable (W2) in ERS 10 must be con-
nected to the main product.
15
A (vit)
B (brun)
GND (grön)
A (vit)
B (brun)
GND (grön)
14
13
AA3-X4
1
2
3
4
5
6
7
8
AA5-X4
Main product
ERS 10
A (white)
B (brown)
GND (green)
A (white)
B (brown)
GND (green)
If more accessories are installed, ERS 10 must be connec-
ted last in the series, as illustrated.
1
2
3
4
5
6
7
8
AA5-X4
15
A (vit)
B (brun)
GND (grön)
A (vit)
B (brun)
GND (grön)
A
B
GND
A
B
GND
14
13
AA3-X4
1
2
3
4
5
6
7
8
AA5-X4
Main product
Accessories 1
ERS 10
A (white)
B (brown)
GND (green)
A (white)
B (brown)
GND (green)
TIP
See the main product's Installer Manual for the
location of the input board (AA3).
NIBE™ ERS 10-500Chapter 5 | Electrical connection12
5 Electrical connection

The DIP switch (AA5-S2) must be set as follows.
ON
1 2 3 4 5 6 7 8
13Chapter 5 | Electrical connectionNIBE™ ERS 10-500

Preparations
■Check the miniature circuit-breaker (FA1) in the main
product. It may have tripped during transportation.
■Check that the air filters are clean, they can become
dirty after installation.
Filling and venting
■Check that there is water in the water seal, fill if neces-
sary.
Start-up and inspection
Setting the ventilation
Ventilation must be set according to applicable stand-
ards. The supply air flow is adjusted to ensure a negative
pressure. The settings are made in menus 5.1.5 and 5.1.6.
Even if ventilation is roughly set at installation it is import-
ant that a ventilation adjustment is ordered and permit-
ted.
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
Luftflöde (l/s)
Ventilationskapacitet
Tillgängligt
tryck
(Pa)
0
50
100
150
200
250
300
350
400
450
0 20 40 60 80 100 120 140
80%
100%
70%
60%
50%
40%
30%
Pressure
(Pa)
Airflow (l/s)
Output, fans
Luftflöde (l/s)
Effekt
Effekt
(W)
0
10
20
30
40
50
60
70
80
90
100
110
120
0 20 40 60 80 100 120 140
80%
100%
70%
60%
50%
40%
30%
Power
output
(W)
Airflow (l/s)
NIBE™ ERS 10-500Chapter 6 | Commissioning and adjusting14
6 Commissioning and adjusting

Program setting of ERS 10 can be performed via the start
guide or directly in the menu system in the main product.
Caution
See the documentation for the main product.
Start guide
The start guide appears upon first start-up after heat
pump installation, but is also found in menu 5.7.
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 5.2.4 -system settings
Activating/deactivating of accessories.
Activate: "exhaust/supply air module".
Menu 5.3.12 - exhaust/supply air module
Settings specific to ERS 10.
"Lowest extract air temp.": Set the minimum extract air
temperature to prevent the heat exchanger freezing.
The supply air fan speed reduces if the extract air tem-
perature at (BT21) is lower than the set value.
"Bypass at temperature": If a room sensor is installed, set
the over-temperature at which the bypass damper
(QN37) must open here.
"Months btwn filter alarms": Set how often the filter
alarm must be displayed.
TIP
When ERS 10 is activated, the other ventilation
menus will also light up.
15Chapter 7 | Program settingsNIBE™ ERS 10-500
7 Program settings

In most cases, the main product notes a malfunction (a
malfunction can lead to disturbance in comfort) and in-
dicates this with alarms and shows action instructions
in the display.
Info-menu
All the measurement values are gathered under menu
3.1 in the main product's menu system. Looking through
the values in this menu can often simplify finding the
source of the fault. See help menu or the main product's
user manual for more information about menu 3.1.
Manage alarm
info / action
reset alarm
aid mode
Low pressure alarm
alarm
In the event of an alarm,
some kind of malfunction
has occurred, which is indic-
ated by the status lamp
changing from green con-
tinuously to red continu-
ously. In addition, an alarm
bell appears in the informa-
tion window.
Alarm
In the event of an alarm with a red status lamp, a mal-
function has occurred that the main product cannot
remedy itself. By turning the control knob and pressing
the OK button, you can see in the display what type of
alarm it is and reset it. You can also choose to set the
main product in 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 most cases it is enough to select "reset
alarm" to correct the problem that caused the alarm. If
a green light illuminates 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 prob-
lem that caused the alarm remains. If the alarm disap-
pears and then returns, see the troubleshooting section
(page 16).
aid mode ”aid mode” is a type of emergency mode. This
means that the heat pump produces heat and/or hot
water despite there being some kind of problem with
the heat pump. This can mean that the heat pump's
compressor is not running. In this case the immersion
heater produces heat and/or hot water.
Problems with ERS 10 do not affect the main product's
operation. You therefore do not need to select ”aid
mode" in event of problems with ERS 10.
Caution
Selecting "aid mode” is not the same as correct-
ing the problem that caused the alarm. The
status lamp will therefore continue to be red.
Troubleshooting
If the operational interference is not shown in the display
the following tips can be used:
Basic actions
Start by checking the following possible fault sources:
■That the main product is running and that the supply
cable to ERS 10 is connected.
■Group and main fuses of the accommodation.
■The property's earth circuit breaker.
■The main product's fuses/temperature limiter.
High or low room temperature
■See Installer Manual for the main product.
Low or a lack of ventilation
■Level monitor (BL2) tripped.
–Checking the condensation water drain and water
seal.
■Filter blocked.
–Clean or replace the filter.
■The ventilation is not adjusted.
–Order/implement ventilation adjustment.
■Closed, too much choke or blocked ventilation device.
–Check and clean the exhaust air devices.
■Fan speed in reduced mode.
–Enter the main product's menu 1.2 and select "nor-
mal".
■External switch for changing the fan speed activated.
–Check any external switches.
■Fan running slow because of low incoming outdoor
air temperature.
–Check the function and settings for the electrical air
heater if installed.
High or distracting ventilation
■Filter blocked.
–Clean or replace the filter.
■The ventilation is not adjusted.
–Order/implement ventilation adjustment.
■Closed, too much choke or blocked ventilation device.
–Check and clean the exhaust air devices.
■Fan speed in forced mode.
–Enter the main product's menu 1.2 and select "nor-
mal".
■External switch for changing the fan speed activated.
–Check any external switches.
■Silencers not correctly installed.
–Check the silencers.
NIBE™ ERS 10-500Chapter 8 | Disturbances in comfort16
8 Disturbances in comfort

NOTE
Always cut the power before opening ERS 10.
LEK
EP26
Water seal for condensation
water
The water seal must be installed so that it can be checked
by the user, without needing to open ERS 10.
The water seal may dry out during the hotter periods of
the year when no condensation is generated. Therefore,
before the cold periods of the year, the condensation
water drain must be checked for blockage due to dirt
and filled with water.
Pour approx. one litre of water into the water seal and
check that it runs through unobstructed.
The water seal must not dry out during those months of
the year that condensation is created because, due to
the negative pressure in the unit, air will be sucked into
the unit which will then prevent the condensation water
from running off. ERS 10 can produce several litres of
condensation water each day. If the condensation water
drain does not function, water may cause damage inside
the house.
Heat exchanger
The heat exchanger (EP26) must be inspected at regular
intervals. Every other year is recommended.
If it is dirty, it must be removed and vacuumed without
touching the fins.
Press gently from behind when removing the heat ex-
changer. Bear in mind that the fins are sensitive and
easily damaged.
NOTE
Do not damage the fins. If the fins are damaged
the output may be reduced.
17Chapter 9 | ServiceNIBE™ ERS 10-500
9 Service

Electrical air heater EAH 10
This accessory heats the incoming outdoor air so that
the extract air temperature is not too low.
Part no. 067 567
NIBE™ ERS 10-500Chapter 10 | Accessories18
10 Accessories

Dimensions
900 44
600
4 x Ø160
Ø32
308146 146
278188 146
612
19Chapter 11 | Technical dataNIBE™ ERS 10-500
11 Technical data

Technical specifications
ERS 10
Electrical data
230 V ~ 50 HzSupply voltage
10AFuse
170 x 2WDriving power fan
IP21Enclosure class
Connections
Ø160mmVentilation connection
Ø32mmConnection, condensation water drain
Noise level
48dB(A)Sound power level (LW(A))
Dimensions and weight
2.4mLength, supply cable
2.0mLength, control cable
900mmHeight
600mmWidth
612mmDepth
40kgWeight
066 079Part no.
1287 m3/h at 50 Pa
Temperature efficiency
Luftflöde (l/s)
Temperaturhöjning förvärmningsbatteri ERS 10
Temperatur
(ºC)
78
80
82
84
86
88
90
92
94
0 150100 250200 350300 400 500450 600550
Efficiency
(%)
Airflow (m
3/h)
NIBE™ ERS 10-500Chapter 11 | Technical data20