WAFE 350 User Manual
v 1.0
USER MANUAL
WAFE 350 Ene rgy Recovery Ventilation Unit
About the document | 3
Table of contents
About the document 3
Safety Instructions 5
Disposal 5
WAFE Intelligent ventilation specialist 6
Heat recovery story 7
Heat recovery basics 7
WAFE 350 Energy recovery ventilation 8
Unit summary 9
Unit parameters 10
Unit technical drawing 11
Unit exploded-view drawing 12
Unit anatomy 13
WAFE 350 Installation 17
Planning the installation 17
Installation and handover 18
WAFE 350 Operation 19
Operation modes 19
Unit control 20
Special cases 22
WAFE 350 Maintenance 23
Maintenance by user 23
Problem solving 24
Warranty and responsibility 25
Warranty 25
Responsibility 25
Notes 26
ABOUT THE
DOCUMENT
Information stated in the User manual:
WAFE 350 Energy recovery ventilation unit
(hereinafter “manual”) are to provide safe
and economically efficient operation of
WAFE 350 energy recovery ventilation
unit (hereinafter “unit”).
Read carefully, please.
Manual and its contents are owned by
WAFE s.r.o. For either partial or full publication, a written approval from
WAFE s.r.o. is necessary. Reproduction
for review purposes is allowed and there
is no need for official approval.
Manual is written, published and applicable exclusively for WAFE 350 unit.
Original version of this document was created in Czech language. The producer is
not responsible for any possible discrepancies due to the translation.
As we are constantly upgrading and improving our devices, your version of the
unit might look different than the one portraited in this manual.
The latest version of the manual can be
found in our document database:
www.wafe.eu/documents
© WAFE 2017. All rights reserved.
4 | About the document
Type designation
Nameplate is used to identify the precise
model of the unit which is necessary for the
safe use of the product. The nameplate is
permanently located on the side of the unit.
Figure 01: An example of a unit
nameplate.
Symbols used
Important information.
Unique feature differentiating your
unit from the competition.
There is a danger of unit or ventilation
system damage.
There is a danger of personal injury.
The numbers shown in box 123 refer to the
Figure 05: Exploded-view drawing of the unit
and Table 02: List of components.
Intended use
WAFE 350 energy recovery ventilation unit is
an air ventilation device with an active heat
and humidity recovery function designed for
comfortable and ecological ventilation management of living spaces up to an area of
250 m2 and out-side temperature of -30 to
+45 °C.
The unit can be used only for the purposes
for which it was developed and manufactured and for which it is technically eligible
in accordance with the conditions specified
by the manufacturer. Its design, implementation and technical condition adhere to
general safety requirements.
Safety Instructions | 5
SAFETY INSTRUCTIONS
Before using the ventilation unit carefully read all the safety instructions below. By
compliance with the following, chances of mechanical or bodily damage are minimised. Manufacturer is not responsible for any damages resulting from non-compliance with these instructions.
• Ventilation unit must be installed in accordance with the general safety regulations valid
in the place of installation.
• Ventilation unit must be installed, connected, operated and serviced only by a properly
trained service technician, that is, a person with appropriate education, experience and
knowledge of all the relevant regulations, standards and potential risks and dangers involved.
• When laying the wires connected to the unit it is necessary to make sure they are not
exposed to any mechanical damage or detrimental environmental effects and that they
do not interfere with the use of the space in which the unit is installed.
• In case of damaged power supply, it must be replaced by manufacturer, his service tech-
nician or equally qualified person
• To prevent damage and injury when manipulating with the electrical plug, pull the plug
head itself instead of its cable.
• The unit cannot be used by children under 8 years old and persons with reduced physical,
sensory or mental capabilities or lack of experience and knowledge, unless they are supervised or instructed on the use of the unit in a safe way and understand the potential
dangers.
• Children must not play with the unit or perform the cleaning and maintenance of it.
Disposal
Dispose the package material in an environmentally friendly way. Once the life cycle of
WAFE 350 comes to its end choose an eco-friendly option for its disposal. The unit must not be
disposed together with a regular household waste. The unit has been classified according to
the EU Directive 2012/19/EU. The directive is valid throughout Europe and it sets a framework
for returning and recycling procedures of disposed appliances.
6 | WAFE Intelligent ventilation specialist
WAFE
INTELLIGENT VENTILATION SPECIALIST
Welcome to the world of WAFE.
We are specialists on heat and energy recovery ventilation units. We do not produce radiators
or humidifiers or smart home control systems. We
focus on the one and only: designing and
manufacturing advanced ventilation units
that will operate flawlessly with minimal
service for many years to come.
We know that ventilation is something
you do not usually think of nor do you
want to. There’s more to life than that.
WAFE products are developed and built
so they would not interfere with your
daily routine; you do not need to fiddle
with numerous settings only to remem-
ber to unset them later. WAFE units oper-
ate in Intelligent mode and are equipped
with reliable sensors and electric circuits taking
care of unit’s internal logic. We assemble our prod-
ucts from quality Czech, German and Dutch components from reputable sources.
Thanks to our unique Enthalpic Flap System (EFS™) WAFE 350 reaches the highest efficiency
in its class at very low power consumption levels. Operating costs are minimal: you only replace
the filters. We sell a complete package, too: installation doesn’t require any additional expensive components you need to buy.
Here at WAFE - we think just like you do.
Petr Šec,
founder of WAFE
Prague, 30.3.2017
WAFE Intelligent ventilation specialist | 7
Heat recovery story
Housing standards in the Western world are continually rising. It’s not only about comfort
anymore: ease of maintenance, ergonomics and low operating costs do matter, too. Above all
– we expect to live in a healthy and natural environment.
At first, we tried to solve this with better quality building materials, more efficient isolation and
airtight door and window systems. Some heat savings were achieved but it soon became apparent that a sealed off indoor environment like this is far from healthy and natural. Levels of
CO2 kept rising due to an accumulated exhaled stale air inducing weariness and a loss of focus.
Opening the window was the only solution. By doing so, however, we not only reversed any
previous heat saving benefits but allowed the city pollution and noise back into our homes.
Ventilation with heat recovery became the only suitable alternative.
Heat recovery basics
Heat Recovery Ventilation (HRV) efficiently
uses energy of waste stale air ejected out of
the building (with high levels of CO2) to
warm up the fresh air coming from outside,
thus creating a healthier and more comfortable environment for all the residents. In
summer, on the contrary, the air flowing
into the building is pleasantly cooled.
In addition to filtering out dust, smog elements and various allergens, superior
forms of ventilation systems —like
WAFE 350— recover not only heat but hu-
midity, too. Devices like these —called
Energy Recovery Ventilation (ERV) units—
save us money on heating costs and, more
importantly, create healthy and balanced
home environment.
Energy recovery ventilation is the
new standard in the construction of
modern houses, apartments and
commercial properties.
Figure 02: Flowing of air in and
out of heat recovery
ventilation system.
Outside temperature °C –2
Intake air temperature °C 21
Inside temperature °C 23
Exhaust air temperate °C 1
8 | WAFE 350 Energy recovery ventilation
WAFE 350
ENERGY RECOVERY VENTILATION
Thank you for buying WAFE 350, our premium energy recovery ventilation unit.
Energy recovery ventilation (ERV) is a smart
way to ventilate your home without any significant loss of heat energy. WAFE introduces new concepts to the ventilation market and solves the most common industry
problems.
WAFE 350 energy recovery ventilation unit:
• doesn’t need to pre-heat the incoming
fresh air when temperatures are low,
hence saving even more on electricity
costs,
• keeps a natural and healthy levels of
humidity in your home even without
using expensive membrane heat exchangers,
• asks for a filter replacement only when
it’s actually necessary. Our competition
still uses timers with fixed replacement
intervals meaning that the filters are
often replaced too late or way too
early. Thanks to its inner sensors and
advanced logic WAFE 350 monitors a
real state of your filters,
• operates autonomously and does not
bother you with unnecessary and complicated functions.
WAFE 350 fulfils the high standards of modern living.
Figure 03: WAFE 350 ERV unit.
WAFE 350 Energy recovery ventilation | 9
Unit summary
WAFE 350 Main benefits
Minimal required user interaction thanks to its
highly autonomous intelligence capable of analysing changes in its surroundings.
Practical and beautiful design made of the highest quality European components will inspire you
and faithfully serve you for years to come.
Enthalpic Flap System (EFS™) keeps healthy hu-
midity in your home and does not need expensive
pre-heating of intake fresh air during cold months.
Low investment costs – no more expensive acces-
sories. Everything needed for the operation is already included.
Low operating costs - maximum filter life expectancy, no expensive electric pre-heating and heat
exchanger that does not need to be replaced. Ever.
Wireless internet access gives the owner complete control over settings and costs of the unit and
enables automatic sending of notifications and error messages.
WAFE 350 Modes and functions
Intelligent mode
Sensors inside the unit analyse their surroundings, regulate the level of ventilation in the home
and maintain desired values of CO2 in the air.
Weekly mode
Unit runs in factory settings and ventilates constantly except during workdays between 8:00–
16:00. Changes in the schedule can be done
through my.wafe.eu web application.
Holiday mode [Out]
Unit is in low power mode and ventilates the
house once a day. Suitable when leaving the ventilated areas for extended periods of time. Requires manual activation and deactivation
through my.wafe.eu. //in development//
Sleep mode [Stand-by]
Sleeping unit is in low power mode, still communicates over the internet (if connected) but does not
ventilate.
Circulation
Suitable for localised heating or aromatherapy;
stops the intake of fresh outside air and only circulates the air between the rooms.
Night mode
When active, automatic initiation of Intense ventilation [Boost] (in Intelligent mode) and via external
button is disabled during evening hours (10PM–
7AM). Online initiation via my.wafe.eu is still possible. Night mode requires manual activation and
deactivation via my.wafe.eu.
Summer mode [By-pass]
The unit intakes outside fresh air into the house
without any heat exchange between the inside
stale air. This mode launches automatically during
summer months to prevent unwanted overheating
of buildings.
Intense ventilation [Boost]
In the occurrence of sudden decrease of air quality
(unpleasant smell, increased CO2) unit can raise
the intensity of ventilation for up to four hours.
This function is either activated automatically (in
the Intelligent mode), via separately installed external button or via my.wafe.eu web application.
Fireplace ventilation
Prevents a formation of negative pressure atmosphere when operating the unit along with the fireplace. //in development//
10 | WAFE 350 Energy recovery ventilation
Unit parameters
BASIC
PARAMETERS
Airflow
m³ / h
80–350
Temperature limits
°C
-30 to +40
Heat recovery efficiency
%
86–97
Humidity recovery efficiency
%
up to 95
External static pressure (ESP)
Pa
150–250
OPERATIONAL
PARAMETERS
Airflow reference
m³ / h
120
180
270
External static pressure (ESP) reference
Pa
100
100
100
Heat recovery efficiency
%
96,70
92,80
91,20
Acoustic pressure level
1 m distance
dB
35,4
38
41,5
Acoustic pressure level
2 m distance
dB
30,9
33,5
37
Power input
W
59,1
79,4
137,9
DESIGN
Weight
kg
35
Dimensions (w x h x d)
mm
1075 x 776 x 539
INSTALLATION
Installation room temperature
°C
5–40
Installation room relative humidity
% at °C
<70 at 22
Installation position
Vertical installation
COMPONENTS
Body Expanded polypropylene (EPP)
Heat exchanger
Plastic duct counterflow
Fans EC CF radial with forward curved blades
Flap system
Enthalpic Flap System (EFS™)
Filters
F7 fineness for fresh incoming outdoor air
M5 fineness for stale exhaust air from the building
Control panel
Analog buttons and 4-line display
Sensors
Pressure, temperature and humidity, CO₂
Sheathing
Aluminium plates with powder coating
Accessories
(upcoming — sold separately)
INELS wall remote control
Aromatizer
SIGFOX Internet of Things network connectivity
CONSTRUCTION
READINESS
Ventilation
mm
DN 160/200 mm (inner/outer diameter)
High voltage
230 V AC, 50 Hz
+ 2 m cable with a standard euro connector
Low voltage
(optional)
Ethernet / RJ45 + CAT5e cable
Potential free (dry) one-way button for Intense
ventilation [Boost]
24 V DC servo drive for façade flaps
Sanitary infrastructure
(optional)
Condensate outlet with 5/4" external thread
OPERATIONAL
LOGIC
Modes
Intelligent mode
Weekly mode
Sleep mode [Stand-by]
Holiday [Out]
Summer [By-pass]
Night mode
Functions
Intense ventilation [Boost]
Fireplace ventilation
Circulation
Table 01: Parameters of the unit.
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