Nibe ERS 30-400 User manual

UHB EN 1941-1
531415
USER MANUAL
Ventilation heat exchanger
NIBE ERS 30-400
UN

31 Important information
3Installation data
4Safety information
4Serial number
6ERS 30 - An excellent choice
72 The heating installation – the heart of the house
7Ventilation heat exchanger function
8Maintenance of ERS 30
113 Disturbances in comfort
11Troubleshooting
134 Technical data
145 Glossary
18Contact information
NIBE ERS 30-400Table of Contents2
Table of Contents

Installation data
ERS 30Product
Serial number
Installation date
Installer
S-Series
SetFact. sett.NameNo.
75%Fan speed, exhaust air7.1.4.1
60%Fan speed, supply air7.1.4.2
Vent heat exchanger (ERS)7.2.11
5 °C
4 °C
lowest extract air temp.
bypass at excess temperature
F-Series
SetFact. sett.NameNo.
75%fan sp. exhaust air5.1.5
60%fan sp. supply air5.1.6
5 °C
4 °C
exhaust/supply air module
lowest extract air temp.
bypass at excess temperature
5.3.12
Serial number must always be given
It is hereby certified that the installation has been carried out in accord-
ance with the instructions in the Installer manual and applicable regula-
tions.
3Chapter 1 | Important informationNIBE ERS 30-400
1 Important information

_________________________Signed__________________Date
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 in-
struction 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 2019.
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.
Serial number
The serial number can be found at the top, to the left of the ventilation
connection for exhaust air.
NIBE ERS 30-400Chapter 1 | Important information4

UN
Caution
You need the product's serial number for servicing and support.
5Chapter 1 | Important informationNIBE ERS 30-400

ERS 30 - An excellent choice
ERS 30 is a ventilation heat exchanger with high temperature efficiency
and low energy consumption.
EXCELLENT PROPERTIES FOR ERS 30:
•DC fans
Two energy efficient DC fan (Class A) are integrated in the ventilation
heat exchanger.
•Low noise level
The ventilation heat exchanger has a very low noise level.
•Control
The ventilation heat exchanger can be controlled from the heat pump
or the main unit, which means that a single control unit can control
the entire climate unit
•In a cold environment
The ventilation heat exchanger has been developed for placing in a
cold environment.
NIBE ERS 30-400Chapter 1 | Important information6

Uteluft
Rumsluft
20 °C 4 °C
18 °C 0 °C
Avluft
Uteluft
A
B
D
C
E
Room air
1
2
Outdoor air
Outdoor air
Extract air
Supply airExhaust air
Ventilation heat exchanger function
A ventilation heat exchanger makes use of the heat in the building’s
ventilation air to heat up the incoming outdoor air. The outgoing ventilation
air (1) retrieves free heating energy from the home and transports it to
the heat exchanger. The heat exchanger (2) transfers the heat from the
indoor air to the incoming outdoor air.
Ventilation air
The hot air is transferred from the rooms to the heat exchanger via the
building's ventilation system using a fan.
A
In the ventilation heat exchanger the air releases heat energy and the
air's temperature drops significantly. The cold air is then blown out of
the house.
B
Outdoor air
The outdoor air is transferred to the ventilation heat exchanger via the
house's ventilation system.
C
In the ventilation heat exchanger the air releases the heating energy and
the temperature is raised.
D
A fan blows the heated air into those rooms that have supply air inlets.
E
7Chapter 2 | The heating installation – the heart of the houseNIBE ERS 30-400
2 The heating installation – the
heart of the house

Maintenance of ERS 30
REGULAR CHECKS
Your ventilation heat exchanger requires minimal maintenance after
commissioning. On the other hand, it is recommended that you check
your installation regularly.
NOTE
Always switch off the power and wait until the fans have
stopped before opening ERS 30.
Cleaning the ventilation devices
The building’s ventilation devices should be
cleaned regularly with, for example, a small
brush to maintain the correct ventilation.
The device settings must not be changed.
NOTE
If you take down more than one
ventilation device for cleaning, do
not mix them up.
Cleaning the air filter
The supply air filter in ERS 30 is of a type that should not be cleaned,
but has to be replaced instead.
The exhaust air filter in ERS 30 should be cleaned regularly; how often
depends on the amount of dust in the ventilation air. Test to find out
what is most appropriate for your installation.
Caution
The efficiency of the installation can be reduced by a dirty air
filter.
The temperatures are only examples and may vary between different installations and
time of year.
NIBE ERS 30-400Chapter 2 | The heating installation – the heart of the house8

You will receive a reminder to clean the filters in the main product's
display. The default setting for the reminder is every three months,
however, if the power to the main product is interrupted the countdown
begins again.
1. Switch off the installation using the MCB in the fuse box or the main
switch for the installation.
2. Pull out the filter cassette.
3. Remove the exhaust air filter and shake it clean.
4. Check the condition of the filters and replace if necessary.
5. Carry out assembly in reverse order.
Even if the filters appear to be clean, dirt collects in them and this affects
the efficiency of the filters. For this reason, replace them after approx.
1 years. New filters can be ordered via the installer.
Supply air filter: ePM1 55% = Pollen filter (Fine filter)
Exhaust air filter: Grov = Standard filter (Coarse filter)
NOTE
Use of a vacuum cleaner or compressed air on the filter is not
recommended, as this diminishes the degree of filtration.
Water or other liquids must not be used for cleaning.
UN
Exhaust air filter Supply air filter
9Chapter 2 | The heating installation – the heart of the houseNIBE ERS 30-400

Check the water lock for condensation water
The water seal must be checked at least once a year, ideally in the au-
tumn.
The water seal is located outside ERS 30. Contact your installer if you
are unsure of where to find it.
No condensation water is generated in the ventilation heat exchanger
during the warmer periods of the year and the water seal will dry out.
During the colder parts of the year, ERS 30 can produce several litres of
condensation water every day. If the condensation outlet is not working,
this may cause water damage inside the home.
The water seal must not dry out during this part of the year because air
will be sucked into the ventilation heat exchanger due to the negative
pressure in the unit, which will then prevent the condensation water
from running off.
1. Check that the condensation drain and the water seal are not clogged
with dirt.
2. Pour approx. one litre of water into the water seal.
3. Check that the water runs through unobstructed.
Cleaning the heat exchanger
Check the heat exchanger every other year and clean if necessary. Avoid
contact with the fins.
Caution
Do not damage the fins. If you are unsure, contact your installer
for help with cleaning.
NIBE ERS 30-400Chapter 2 | The heating installation – the heart of the house10