WAFE 350 EFS User manual

PLEASE REMEMBER. The document also serves as a service book and warranty sheet (on the back).
QUICK GUIDE
WAFE 350 EFS Energy recovery ventilation unit
In every circumstances make sure you adhere safety regulations, warnings and instructions provided in
this guide and in the main manual. Their non-observence can lead up to personal injury or demage to
the unit. The latest version of the manual can be found in our document: www.wafe.eu/dokumenty.
In case you encounter a complex technical issue, contact WAFE customer servis immediately at +420 273
139 700. For easier problem identification, note the error code number (displayed on the unit display)
and the type of your unit (see the nameplate on the side of the unit).
PACKAGE INCLUDES
WAFE 350 EFS
energy re-
covery ventila-
tion unit
M5 a F7 filters
(inside the unit)
Wall rail
User manual:
WAFE 350 EFS energy recovery ventila-
tion unit
Brief guide:
WAFE 350 EFS energy recovery ventila-
tion unit
Cardboard stoppers for air pipes (4x)
230 V/ 50 Hz cable
v 2.0

2
SAFETY INSTRUCTI-
ONS
•Ventilation unit must be installed in accor-
dance with the general safety regulations va-
lid in the place of installation.
•Ventilation unit must be installed, connec-
ted, operated and servised 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 risk and dangers in-
volved.
•When laying the wires connected to the unit
it is necessary to make sure they are not ex-
posed to any mechanical damage or detri-
mental enviromental effects and that they
do not interfare with the use of the space in
which the unit is installed.
•To prevent demage and injury when manipu-
lating 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 ex-
perience and knowledge, unless they are su-
pervised 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 per-
form the cleaning and maintenance of it.
TABLE OF CONTENTS
safety instructions 2
WAFE 350 EFS operation 3
Operation modes 3
Unit control 4
WAFE 350 EFS Maintenance 6
Maintenance by user 6
Technical support 7
Service book 8
WARRANTY AND RESPONSIBILITY 15
Warranty 15
Responsibility 15
Symbols used

Important information.

Unique feature differentiating your unit from
the competition

There is a danger of unit or ventilation systém
damage

There is a danger of personal injury

3
WAFE 350 EFS OPERATION
WAFE 350 EFS has been designed for your miximum comfort. After installion and initial setup of operating
values by WAFE technician (accoring to the construction project, see section WAFE 350 Installion / Installa-
tion and handover), the unit needs little to no attention.
Operation modes
INTELIGENT MODE
The unit analyses its surroundings and through optimal ventilation keeps the CO2level as low as possible.
Recommended for general use.
Requires manual activation and deactivation through my.wafe.eu.
In case CO2sensors are demaged unit will automatically switch to the forced Weekly mode.
WEEKLY MODE
The unit provides ventilation according to its factory settings (constantly except for workdays from 8AM till 4PM)
or according to its own time schedule set up at my.wafe.eu.
Alternative to recommended general use.
Requires manual activation and deactivation through my.wafe.eu.
For other than default factory setting login to my.wafe.eu web application, activate the Weekly mode and set your
own time schedule. Remember to confirm the new setting!
HOLIDAY
(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.
SLEEP
(STAND-BY)
The unit is in low power mode, communicates over the internet (if connected) but does not ventilate.
Turn on before unplugging from the power outlet.
Requires manual activation and deactivation through my.wafe.eu or via unit’s control panel.
Part of the transition to Sleep mode is a drying process: the unit closes its exterior flaps and the heat exchanger and
dries for 10 minutes. Unplugging the unit from the power outlet during this step might result in residual moisture
staying inside the unit.
CIRCULATION
The unit does not intake fresh air. The air circulates to spread out the heat or aroma in the building.
Activation and deactivation through my.wafe.eu.
DEHUMIDIFICATION
The unit primarily addresses the reduction of relative humidity in the building. EFS flap system remains in its position.
The unit must be connected to the condensate drain. When temperature below −𝟑℃, the unit can perform dehu-
midification function with SAFE DEHUM MODE.
Activation of DEHUMIDIFICATION function and SAFE DEHUM is performed by technician in SETUP menu.
OFF
The unit is unplugged from the power outlet: it does not ventilate and does not communicate over the internet
even if connected.
Not recommended: consider using the Sleep mode instead.
Switch the unit into Sleep mode (wait for the whole drying process to finish!) and unplug the cable.
ERROR
The unit does not ventilate and is awaiting the error resolution.
Automatically activated mode after encountering any errors.
After switching to Error mode, follow the steps in section WAFE 350 EFS Maintenance / Technical support.
Table 01: Operation modes WAFE 350 EFS

4
Unit control
Control via LCD display
The unit’s control panel consists of an LCD display, four buttons with symbols and a LED diode.
Confirmation button—left/right (see Figure 02) are used to choose between Option 1 (Left)/2 (Right) (see
Figure 03). Pressing the Confirmation button always activates the option on the topmost line of unit dis-
play. To select a different option, scroll the menu by pressing Selection button—up/down so that your de-
sired option is displayed on the first line.
Figure 02: Buttons on the control panel.
Figure 03: The menu structure

5
Control panel LED diode has four light modes.
LED COLOUR
UNIT STATE
REQUESTED ACTIONS
Blue Glowing
The unit is on. Everything is ok.
Breathe. Live.
Yellow Glowing
The unit is on: incoming message
Check teh LCD display or my.wafe.eu web application.
Red Glowing
The unit is off: Error!
Check the LCD display or my.wafe.eu web application
and follow the instructions in section WAFE 350 Ma-
intenance / Technical support.
Green Flashing
The unit did not change its state; green
flashing light signal an ongoing data
transfer.
Nothing. Do not unplug the unit from the power grid!
Table 02: LED light modes and related unit states.
Remote control via my.wafe.eu web application
Remote control of the unit is possible only if:
•The unit is connected to internet.
•You have been successfully registered as WAFE user and linked to your unit.
To control the unit remotely login to my.wafe.eu web application with your user identification data.

Any command entered through my.wafe.eu might take up to one minute to reach the unit.
First login to web application
After your account registration, you’ll receive an activation email with your login details. After you first log
in and choose a new password, the unit is ready for remote control via my.wafe.eu web application.

6
WAFE 350 EFS MAINTENANCE
Regular professional maintenance by WAFE servis technician is a necessarity to ensure long life and reliability
of the unit.
Maintenance by user
You have only two tasks left in the maintenance of the unit: replacing the filters and cleaning the air diffusers.
Replacing the filters
Newly purchased WAFE 350 comes with F7 filter (supply air) and M5 filter (exhaust air) already preinstalled.
Thanks to sensitive pressure sensors and internal logic your unit can accurately detect the amount of
clogging in each filter.

Blue glowing LED diode in the middle of the decorative plate of the unit signals a problem-free opera-
tion of the unit. That does include still having both filters clean.

Yellow glowing LED diode accompanied with a notification „Fresh/Exhaust filter is near the end of a
lifetime“ on the unit display or on my.wafe.eu signals that fresh (F7)/exhaust (M5) filter has exceeded
a recommended degree of clogging. The unit remains functional until the filter clogging reaches the
critical level.
If you do not have a stock of replacement WAFE filters, contact us promptly at
www.wafe.eu/filters or call [phone]. Make sure to use high-quality WAFE filters only. Original fil-
ters can be identified by a WAFE logo.

Red glowing LED light accompanied with an error message „Fresh/Exhaust filter lifetime ended. Please,
replace now!“ on the unit display or at my.wafe.eu signals completely clogged fresh F7/exhaust M5
filter. The unit switches into Error mode and will not operate until the filters are replaced.
Replacing the filters is necessary in two cases, whichever comes first:
•12 months have passed since the last filter replacement
•The unit has switched to an Error mode (identifiable by the glowing red LED diode and an error
message on the unit display).

The unit cannot operate without filters.

7
Filter replacement procedure

Before starting the filter replacement procedure make sure the unit is in Filter replacement mode. You
can activate it only via unit display by selecting and confirming the appropriate option.
01 Press the decorative cover
downwards with both hands un-
til it reaches its lower end posi-
tion and check the message on
the display. Follow the instructi-
ons on the screen.
02 Pull the corresponding fil-
ter stopper out of the unit body
as shown in the picture above.
Pull out the old filter by its strap
and insert a new one. Mind the
correct position of the insertion
according to the instructions on
the filter. Return the stopper as
far to the back as it fits.
03 Confirm the completion
of the replacement procedure
on the display keyboard as in-
structed. The unit will resume
its operation.
04 Use both hands to push
the decorative cover upwards.
The cover will automatically
move into its upper end position.
The unit Optimum is not equipped with the sliding decorative cover. The filter plugs are freely accessible. When replacing the filters, proceed
from step 02.
Cleaning the air diffusers
Air diffusers optimise the direction and flow of intake and exhaust air. For better air permeability, it is
required to provide periodic cleaning of both interior and exterior air diffusers at least once per 6 months.
To do so wipe the edges and insides of the diffusers and remove any sediment dirt with a dry cloth. Avoid
using water and chemicals unless absolutely necessary.
Technical support
In case you encounter a complex technical issue or need an answer to a particular question regarding the
regular professional maintenance, contact WAFE customer service immediately at [phone].
For easier problem identification, note the error code number (displayed on the unit display) and the type
of your unit (see the nameplate on the side of the unit).

Whenever a breakdown is detected, unplug the unit from the power grid until the breakdown is eli-
minated. During the time of breakdown, unit does not work, the living area is not ventilated. This
causes lower quality of air in the interior and can lead to humidity increase or creation of mold. Avoid
longterm disabling of ventilation system.
During shorter periods of absence, it is appropriate to leave the unit in Intelligent mode. During longer
breaks leave the unit in Holiday mode [Out].

SERVICE BOOK
Regular WAFE service inspection
For year
Detailed specification of all actions is provided in WAFE certificated Service manual: WAFE 350 Energy recovery ventila-
tion unit, to which your service technician has access. The brief specification in this section is indicative and it does not
necessarily contains all steps of the work.
Correct execution of Regular WAFE servece inspection is a condition to extend the warrenty for another year. The
owner of the unit takes responsibility for assuring the inspection and recording the check in Service Book.
1. Inspection and replacement of fil-
ters
Wear and tear of filters has been checked, clogged
filters has been replaced
Action performed?
2. Cleaning the heat exchanger
The heat exchanger has been taken out and washed
(optional) and the inner part has been cleaned
.
3. Visual check
Flaps, washers, pipe connection and condensate
drainage has been checked
Inspection performed by:
Inspection date:
CRN*:
Telephone:
Regular WAFE service inspection
For year
Detailed specification of all actions is provided in WAFE certificated Service manual: WAFE 350 Energy recovery ventila-
tion unit, to which your service technician has access. The brief specification in this section is indicative and it does not
necessarily contains all steps of the work.
Correct execution of Regular WAFE servece inspection is a condition to extend the warrenty for another year. The
owner of the unit takes responsibility for assuring the inspection and recording the check in Service Book.
1. Inspection and replacement of fil-
ters
Wear and tear of filters has been checked, clogged
filters has been replaced
Action performed?
2. Cleaning the heat exchanger
The heat exchanger has been taken out and washed
(optional) and the inner part has been cleaned
.
3. Visual check
Flaps, washers, pipe connection and condensate
drainage has been checked
Inspection performed by:
Inspection date:
CRN*:
Telephone:
* (company registration number), identification number of a company

Regular WAFE service inspection
For year
Detailed specification of all actions is provided in WAFE certificated Service manual: WAFE 350 Energy recovery ventila-
tion unit, to which your service technician has access. The brief specification in this section is indicative and it does not
necessarily contains all steps of the work.
Correct execution of Regular WAFE servece inspection is a condition to extend the warrenty for another year. The
owner of the unit takes responsibility for assuring the inspection and recording the check in Service Book.
1. Inspection and replacement
of filters
Wear and tear of filters has been checked, clogged
filters has been replaced
Action performed?
2. Cleaning the heat exchanger
The heat exchanger has been taken out and washed
(optional) and the inner part has been cleaned
.
3. Visual check
Flaps, washers, pipe connection and condensate
drainage has been checked
Inspection performed by:
Inspection date:
CRN*:
Telephone:
Regular WAFE service inspection
For year
Detailed specification of all actions is provided in WAFE certificated Service manual: WAFE 350 Energy recovery ventila-
tion unit, to which your service technician has access. The brief specification in this section is indicative and it does not
necessarily contains all steps of the work.
Correct execution of Regular WAFE servece inspection is a condition to extend the warrenty for another year. The
owner of the unit takes responsibility for assuring the inspection and recording the check in Service Book.
1. Inspection and replacement
of filters
Wear and tear of filters has been checked, clogged
filters has been replaced
Action performed?
2. Cleaning the heat exchanger
The heat exchanger has been taken out and washed
(optional) and the inner part has been cleaned
.
3. Visual check
Flaps, washers, pipe connection and condensate
drainage has been checked
Inspection performed by:
Inspection date:
CRN*:
Telephone:
* (company registration number), identification number of a company

Regular WAFE service inspection
For year
Detailed specification of all actions is provided in WAFE certificated Service manual: WAFE 350 Energy recovery ventila-
tion unit, to which your service technician has access. The brief specification in this section is indicative and it does not
necessarily contains all steps of the work.
Correct execution of Regular WAFE servece inspection is a condition to extend the warrenty for another year. The
owner of the unit takes responsibility for assuring the inspection and recording the check in Service Book.
1. Inspection and replacement
of filters
Wear and tear of filters has been checked, clogged
filters has been replaced
Action performed?
2. Cleaning the heat exchanger
The heat exchanger has been taken out and washed
(optional) and the inner part has been cleaned
.
3. Visual check
Flaps, washers, pipe connection and condensate
drainage has been checked
Inspection performed by:
Inspection date:
CRN*:
Telephone:
Actions outside of Regular WAFE service inspection
DATE
ACTION PERFORMED
SERVICE TECHNICIAN

DATE
ACTION PERFORMED
SERVICE TECHNICIAN

DATE
ACTION PERFORMED
SERVICE TECHNICIAN

DATE
ACTION PERFORMED
SERVICE TECHNICIAN

Product datasheet conform Ecodesign (EU) nr. 1254/2014
Supplier:
WAFE s.r.o.
Model:
WAFE 350 EFS
Climate zone:
SEC Value
in
kWh/m2/a
Energyclass
(SEC)
The annual elektri-
city consumption
(AEC) in kWh
The annual hea-
ting save (AHS) in
kWh
Cold
-79,11
A+
778
8983
Averange
-40,57
A
241
4592
Warm
-15,87
E
196
2076
Type of ventilation unit:
Ventilation unit with heat recovery
Type of fan:
Variable speed EC fans
Type of heat exchanger:
Recuperative plastic cross-counterflow
Thermal effeciency:
85
%
Maximum flow rate:
312
m3/h
Maximum electric power input:
210
W
Sound power level Lw(A):
54
dB(A)
Reference flow rate:
218
m3/h
Reference pressure difference:
50
Pa
Specific power input SPI:
0,37
W.h/m3
Control factor:
0,65
Two sensors RH a CO2
Leakage*:
Internal
1,77
m3/h
0,81
%
External
1,8
m3/h
0,82
%
Filter warning:
On screen on the unit
Internet address for Assembly
instructions:
https://www.wafe.eu/cs/350-rekuperacni-jednotka
*Measure according to EN 308, December 2016, relative to reference flow

WARRANTY AND RESPONSIBILITY
Warranty
The warranty does not cover the damage of the unit or its individual components caused by:
•improper handling or storage,
•non-compliance with the instructions provided in the manual,
•incorrect assembly not provided by the manufacturer,
•arbitrary tampering and misuse,
•neglecting the prescribed mandatory maintenance (such as a failure to replace clogged filters,
etc.),
•use or installation of parts that have not been approved in writing by the manufacturer (e.g.
operating the unit using non-original WAFE filters),
•non-compliance with the requirements for connected devices supplied by a third party (pro-
tection, security, etc.),
•violent damage, natural disaster or extreme operating conditions and influences, the effects of
electromagnetic interference, etc.
The warranty also does not cover normal wear and tear.
Responsibility
WAFE 350 EFS energy recovery ventilation unit has been developed and manufactured for use in ventilation
systems for residential applications. Any other way of installation and operation than the one approved by
the manufacturer is considered inappropriate and can cause damage to the unit or property or personal
injury for which the manufacturer cannot be held responsible.

The manufacturer shall not be held responsible or liable for damages caused by:
•non-compliance with a proper installation and safety instructions stated in this manual and appli-
cable regulations,
•failure to follow the instructions for operation, service and maintenance,
•the use of spare parts and accessories not supplied or prescribed by the manufacturer,
•improper, incompetent or incorrect installation,
•pollution of the system,
•normal wear and tear,
•expiration of the warranty period.

WARRANTY SHEET
WAFE 350 EFS Energy recovery ventilation unit
WAFE s.r.o., Kolbenova 931/40B, Prague 9 –Vysočany, IČO: 046 94 651,
provides a warranty to the buyer:
Name / Company
CRN*
Contact address
Telephone
Email
The warranty applies to WAFE 350 EFS:
Serial number
Date of instalation
Address of instalation
WAFE 350 EFS instalation performed by
CRN*
Telephone
Email
* (company registration number), identification number of a company