Zehnder Rittling ComfoAir 200 Luxe Series User guide

Cooling Fresh Air Clean AirHeating
ComfoAir 200 Luxe
Installer manual

EN - II
All rights reserved.
This manual has been compiled with the most care. The publisher cannot be held liable for any damage caused as a result of missing
or incorrect information in this manual. In case of dis putes the Dutch version of these instructions will be binding.

Table of Contents
III - EN
Preface .............................................................................................................................................................. 1
1 INTRODUCTION................................................................................................................................................. 1
1.1 Warranty and liability ................................................................................................................................ 1
1.1.1 Warranty conditions ..................................................................................................................... 1
1.1.2 Liability ........................................................................................................................................ 1
1.2 Safety..................................................................................................................................................... 2
1.2.1 Safety regulations ........................................................................................................................ 2
1.2.2 Safety provisions and measures................................................................................................... 2
1.2.3 Pictograms used ......................................................................................................................... 2
2 FOR THE INSTALLER ......................................................................................................................................... 3
2.1 ComfoAir configuration ............................................................................................................................ 3
2.2 Technical specifications ........................................................................................................................... 4
2.3 Dimension sketch.................................................................................................................................... 6
2.4 Installation conditions............................................................................................................................... 7
2.5 INSTALLATION OF THE COMFOAIR.................................................................................................................... 7
2.5.1 Transport and unpacking.............................................................................................................. 7
2.5.2 Checking the delivery................................................................................................................... 7
2.6 Mounting of the ComfoAir........................................................................................................................ 7
2.6.1 Mounting on the ceiling................................................................................................................ 7
2.6.2 Mounting on the wall ................................................................................................................... 8
2.6.3 Connection of the air ducts .......................................................................................................... 8
2.6.4 Connection of the condensation drain ......................................................................................... 9
2.7 Commissioning the ComfoAir................................................................................................................... 9
2.7.2 P menus for the installer............................................................................................................. 11
2.8 Programming air specifications............................................................................................................... 14
2.9 Maintenance by the installer................................................................................................................... 15
2.9.1 Inspecting and cleaning the heat exchanger................................................................................ 15
2.9.2 Inspecting and cleaning the fans ................................................................................................ 16
2.10 Malfunctions ......................................................................................................................................... 16
2.10.1 Malfunction alerts on the digital operating device......................................................................... 17
2.10.2What to do in the event of a malfunction / Trouble shooting........................................................... 18
2.10.3 Malfunctions (or problems) without alerts..................................................................................... 24
2.11 Service parts......................................................................................................................................... 25
2.12 Wiring diagram: ComfoAir 200 - RIGHT-HAND version ............................................................................ 26
2.13 Wiring diagram: ComfoAir 200 - LEFT-HAND version .............................................................................. 27
2.14 EEC declaration of conformity ..................................................................................................................28
2.15 Temperature conversion table ............................................................................................................... 28

EN - 1
Preface
Carefully read this manual before use.
This manual provides all the information required for safe
and optimal installation, operation and maintenance of
the ComfoAir 200 Luxe. It is also intended as a reference
for servicing, so that this can be carried out in a respon-
sible manner. The device is subject to continuous devel-
opment and improvement. As a result, the ComfoAir 200
Luxe may slightly differ from the descriptions.
NOTE
This manual has been compiled with
the most care. However, no rights can be
derived from it. In addition, we at all times
reserve the right to change the contents of
this manual, without prior notice.
1 Introduction
The device's name is ComfoAir 200 Luxe. In the following
it will be referred to as ComfoAir.
The ComfoAir is a balanced ventilation system with heat
recovery in order to create healthy, balanced and energy-
efficient ventilation in houses. The ComfoAir has a UL
marking on the identification plate. The identification
plate can be found on side of the ComfoAir.
1.1 Warranty and liability
1.1.1 Warranty conditions
The ComfoAir is covered by a manufacturer’s warranty
for a period of 24 months after fitting up to a maximum
of 30 months after the date of manufacture. Warranty
claims may only be submitted for material faults and/or
construction faults arising during the warranty period. In
the case of a warranty claim, the ComfoAir must not be
dismantled without written permission from the manu-
facturer. Spare parts are only covered by guarantee, if
they were supplied by the manufacturer and have been
installed by an approved installer.
The warranty becomes invalid if:
■ The warranty period has elapsed;
■ The device is used without filters;
■ Parts are used that have not been supplied by the
manufacturer;
■ Non-authorised changes or modifications have been
made to the unit.
1.1.2 Liability
The ComfoAir has been designed and manufactured
for use in balanced ventilation systems incorporating
Zehnder heat recovery systems. Any other application is
seen as inappropriate use and can result in damage to
the ComfoAir or personal injury, for which the manufac-
turer cannot be held liable.
The manufacturer is not liable for any damage originat-
ing from:
■ Non-compliance with the safety, operating and main-
tenance instructions in this manual;
■ The use of components not supplied or recommend-
ed by the manufacturer.
Responsibility for the use of such components lies
entirely with the installer;
■ Normal wear and tear.

2 - EN
1.2 Safety
1.2.1 Safety regulations
Always comply with safety regulations in this manual.
Non-compliance with the safety regulations, warnings,
notes and instructions in this manual can cause personal
injury or damage to the ComfoAir.
■ The ComfoAir may only be installed, connected, ren-
dered operational and maintained by an appropri-
ately approved installer, unless otherwise indicated
in this manual;
■ Installation of the ComfoAir must be carried out in
accordance with the general and locally applicable
construction, safety and installation instructions of
the local council, electricity and water boards or oth-
er agencies;
■ Observe the safety regulations, warnings, comments
and instructions as prescribed in this manual at all
times;
■ Keep this manual with the ComfoAir throughout its
life;
■ Instructions with regard to cleaning or replacing the
filters of the intake and exhaust valves must be care-
fully observed;
■ The specifications stated in this document may not
be changed;
■ Modifying the ComfoAir is not allowed;
■ Always take ESD-inhibiting measures when deal-
ing with electronics, such as wearing an antistatic
wristband. The electronics can be damaged by static
charges;
■ The ComfoAir is only suitable for connetion to 230V
50Hz or 240V 60Hz mains. Use 15A circuit breaker
or fuse in supply circuit. Class 3 wiring is required to
be used, in accordance with Article 725 of the Na-
tional Electrical Code, if the wiring extends into areas
where wet contact is likely;
■ For residential installation only;
■ Do not install in a cooking area or connect directly
to any appliance. Recommended maximum ambient
temperature is 122°F (50°C );
■ It is recommended to take out a maintenance con-
tract so that the device is checked on a regular basis.
1.2.2 Safety provisions and measures
■ The ComfoAir cannot be opened without using tools;
■ It should not be possible to touch the fans, there-
fore ducting must be connected to the ComfoAir at a
minimum duct length of 35 inch (900 mm).
1.2.3 Pictograms used
The following pictograms are used in this manual:
Point of attention.
Risk of:
- damage to the device;
- performance of the device is compromised
if instructions are not observed carefully.
Risk of personal injury to the user or installer.

EN - 3
2 For the Installer
2.1 ComfoAir configuration
The standard ComfoAir configuration consists of:
■ External casing (A) of coated sheeting;
■ Interior (B) of high-quality, expanded polypropylene (E)PP;
■ 4 connections (C) for the air ducts;
■ 2 filters (D) for air purification. Filter classification: Supply Air G4, Exhaust Air G4;
■ 2 energy-efficient DC motors (E) with high-efficient fan;
■ HR (High Efficient) heat exchanger (F);
■ Connector panel (H2) with connections for external switches and controllers;
■ Control panel (H1) with connections for the fans, the bypass, temperature sensors (T1 to T4) and a bathroom switch;
■ Identification plate (I) detailing information on the ComfoAir (not visible);
■ Condensation drain (J) to drain the condensation of the warm return air;
■ Sticker (K) detailing the air connections (not visible);
■ 240V Power connection (L);
■ 2 Filtercaps (M);
■ 4 Ceiling mounting brackets (N) or 1 Wall mounting bracket (not visible).

4 - EN
2.2 Technical specifications
ComfoAir 200 nL (normal air volumes)
Position Ventilation capacity Power
Absent Setting 11.77 CFM (20 m3/h) at 0.01 in.w.c. (3 Pa) 9 W
Medium Setting 41.20 CFM (70 m3/h) at 0.04 in.w.c. (10 Pa) 30 W
Medium Setting 70.63 CFM (120 m3/h) at 0.12 in.w.c. (30 Pa) 30 W
High Setting 108.89 CFM (185 m3/h) at 0.27 in.w.c. (68 Pa) 68 W
Maximum 150.09 CFM (255 m3/h) at 0.50 in.w.c. (125 Pa) 143 W
Position Ventilation capacity Current
Absent Setting 11.77 CFM (20 m3/h) at 0.01 in.w.c. (3 Pa) 0.08 A
Low Setting 41.20 CFM (70 m3/h) at 0.04 in.w.c. (10 Pa) 0.14 A
Medium Setting 70.63 CFM (120 m3/h) at 0.12 in.w.c. (30 Pa) 0.25 A
High Setting 108.89 CFM (185 m3/h) at 0.27 in.w.c. (68 Pa) 0.55 A
Maximum 150.09 CFM (255 m3/h) at 0.50 in.w.c. (125 Pa) 1.10 A
Electricity
Power supply 240/50 - 60 V/Hz
Cos.phi at Maximum 0.8
Connecting Power 1.49 kW
Maximum Power Pre-heater 1.35 kW
Leakage current <1mA
Supply fan noise level (at 0 m)
Position Ventilation capacity Sound power
Absent Setting 11.77 CFM (20 m3/h) at 0.01 in.w.c. (3 Pa) 37 db(A)
Low Setting 41.20 CFM (70 m3/h) at 0.04 in.w.c. (10 Pa) 49 db(A)
Medium Setting 70.63 CFM (120 m3/h) at 0.12 in.w.c. (30 Pa) 59 db(A)
High Setting 108.89 CFM (185 m3/h) at 0.27 in.w.c. (68 Pa) 66 db(A)
Maximum 150.09 CFM (255 m3/h) at 0.50 in.w.c. (125 Pa) 73 db(A)
Exhaust fan noise level (at 0 m)
Position Ventilation capacity Sound power
Absent Setting 11.77 CFM (20 m3/h) at 0.01 in.w.c. (3 Pa) 36 db(A)
Low Setting 41.20 CFM (70 m3/h) at 0.04 in.w.c. (10 Pa) 39 db(A)
Medium Setting 70.63 CFM (120 m3/h) at 0.12 in.w.c. (30 Pa) 44 db(A)
High Setting 108.89 CFM (185 m3/h) at 0.27 in.w.c. (68 Pa) 52 db(A)
Maximum 150.09 CFM (255 m3/h) at 0.50 in.w.c. (125 Pa) 60 db(A)

EN - 5
ComfoAir 200 HL (high air volumes)
Position Ventilation capacity Power
Absent Setting 11.77 CFM (20 m3/h) at 0.01 in.w.c. (3 Pa) 9 W
Low Setting 52.97 CFM (90 m3/h) at 0.05 in.w.c. (13 Pa) 20 W
Medium Setting 108.89 CFM (185 m3/h) at 0.27 in.w.c. (68 Pa) 68 W
High Setting 144.20 CFM (245 m3/h) at 0.48 in.w.c. (120 Pa) 128 W
Maximum 150.09 CFM (255 m3/h) at 0.50 in.w.c. (125 Pa) 143 W
Position Ventilation capacity Current
Absent Setting 11.77 CFM (20 m3/h) at 0.01 in.w.c. (3 Pa) 0.08 A
Low Setting 52.97 CFM (90 m3/h) at 0.05 in.w.c. (13 Pa) 0.16 A
Medium Setting 108.89 CFM (185 m3/h) at 0.27 in.w.c. (68 Pa) 0.55 A
High Setting 144.20 CFM (245 m3/h) at 0.48 in.w.c. (120 Pa) 0.99 A
Maximum 150.09 CFM (255 m3/h) at 0.50 in.w.c. (125 Pa) 1.10 A
Electricity
Power supply 240/50 - 60 V/Hz
Cos.phi at Maximum 0.8
Connecting Power 1.49 kW
Maximum Power Pre-heater 1.35 kW
Leakage current <1mA
Supply fan noise level (at 0 m)
Position Ventilation capacity Sound power
Absent Setting 11.77 CFM (20 m3/h) at 0.01 in.w.c. (3 Pa) 37 db(A)
Low Setting 52.97 CFM (90 m3/h) at 0.05 in.w.c. (13 Pa) 53 db(A)
Medium Setting 108.89 CFM (185 m3/h) at 0.27 in.w.c. (68 Pa) 66 db(A)
High Setting 144.20 CFM (245 m3/h) at 0.48 in.w.c. (120 Pa) 72 db(A)
Maximum 150.09 CFM (255 m3/h) at 0.50 in.w.c. (125 Pa) 73 db(A)
Exhaust fan noise level (at 0 m)
Position Ventilation capacity Sound power
Absent Setting 11.77 CFM (20 m3/h) at 0.01 in.w.c. (3 Pa) 36 db(A)
Low Setting 52.97 CFM (90 m3/h) at 0.05 in.w.c. (13 Pa) 42 db(A)
Medium Setting 108.89 CFM (185 m3/h) at 0.27 in.w.c. (68 Pa) 52 db(A)
High Setting 144.20 CFM (245 m3/h) at 0.48 in.w.c. (120 Pa) 56 db(A)
Maximum 150.09 CFM (255 m3/h) at 0.50 in.w.c. (125 Pa) 60 db(A)
General Specifications
HE Exchanger Material Cellulose
Interior Material (E)PP / ABS
Thermal Yield 95%
Mass 66.14 lb (30 kg)
Maximum ambient temperature 122°F

6 - EN
2.3 Dimension sketch

EN - 7
2.4 Installation conditions
In order to determine whether the ComfoAir can be in-
stalled in a certain area, the following aspects must be
taken into account:
■ The ComfoAir must be installed according to the gen-
eral and locally applicable safety and installation regu-
lations of power and water companies, as well as the
instructions in this manual.
■ The system must be fitted to allow sufficient room
around the ComfoAir for the air connections and
supply and exhaust ducts as well as for carrying out
maintenance activities.
■ T he ComfoAir must be installed in a frost-free space.
The condensation must be drained off frost-free, at a
gradient and incorporate a 'U' bend.
■ T he ComfoAir should not be installed in areas with
higher average humidity because of condensation
forming on the out side of the ventilation unit.
■ The room must offer the following provisions:
- Air duct connections.
- 230V electrical connection.
- Provisions for the condensation drain.
- Wiring for an wired switch.
■ A gap should be left near the doors in order to ensure
effective and draughtfree airflow in the house. A gap
under the inside doors must be atleast 0.39 inch (10
mm).
If these openings are obstructed, due to draught
blockers or deep-pile carpet, the airflow in the
house will stagnate. As a result, system perfor-
mance will be compromised or fail altogether.
2.5 Installation of the ComfoAir
2.5.1 Transport and unpacking
Take the necessary precautions when transporting and
unpacking the ComfoAir.
Make sure the packing material is disposed in
an environmentally friendly manner.
2.5.2 Checking the delivery
Contact your supplier immediately in case of damage or
an incomplete delivery. The delivery must include:
■ ComfoAir;
Check the identification plate to ensure that it is the
required type.
■ Ceiling mounting set;
■ Wall mounting bracket;
■ Documentation.
The ComfoAir is supplied in the following types:
Type
ComfoAir 200 L Luxe ERV
ComfoAir 200 R Luxe ERV
Meaning of the suffixes:
* L = Left version
* R = Right version
* ERV = Contains a enthalpy exchanger by default.
* Luxe = Contains a connection board with extra function by
default.
ComfoSense panel (optional) can be ordered separately.
2.6 Mounting of the ComfoAir
The ComfoAir can be mounted two ways:
■ On the ceiling;
■ On the wall.
2.6.1 Mounting on the ceiling
Mount the ComfoAir to a ceiling with a minimum mass of
at least 0.28 lb/in2 (200 kg/m2).
B
A
C
1. Fasten the four mounting brackets (A) (using the
screws supplied) to the sides of the ComfoAir.
2. Fasten the two spacer brackets (C) (using the screws
supplied) to the top of the ComfoAir on the side of
the condensation drain (B). As long as the ceiling is
level, this ensures a run-off of 2% to the condensa-
tion drain.
3. Mark the position of the mounting points on the ceil-
ing.
4. Mount four pieces of studding (M8 or M10) extending
9.51 feet (290 cm) below the ceiling.
5. Screw suitable (securing) rings and nuts on the four
rods.
6. Hang the unit on the rods and then screw the lock-
nuts tight.
Allow a minimum 2% run-off to the condensation
drain. If the ceiling is horizontal, the spacer brackets
will automatically ensure that the ComfoAir hangs at
the correct angle.
7. Mount the condensation drain to the ComfoAir with a
coupling or removable pipe.
8. The air exhaust duct must be fitted with a double-
walled or insulated roof passage. This prevents the
formation of condensation between the roof board-
ing. In addition, the air exhaust duct must drain in the
direction of the ComfoAir.
9. To prevent unnecessary temperature loss in either
the summer or the winter, we recommend fitting ther-
mal and damp-proof insulation to the supply ducts
from the ComfoAir up to the supply valves.
Ensure that there is enough room under the ComfoAir
for carrying out maintenance. The ComfoAir does not re-
quire any space at the sides for effective operation.
Do not mount the side of the ComfoAir against
the wall due to the risk of impact sound.

8 - EN
2.6.2 Mounting on the wall
Mount the ComfoAir against a wall with a minimum mass
of 0.28 lb/in2 (200 kg/m2).
1. Using a spirit level, fix the mounting bracket hori-
zontally to the wall. Use M8 anchor bolts. Make sure
there is enough space under the ComfoAir to mount
the siphon.
2. Hang the unit in the mounting bracket.
3. Mount the condensation drain under the ComfoAir.
The stated dimension of 9.3 inch (235 mm) is an indi-
cation only, and is dependent on the type of conden-
sation drain selected.
Make sure to leave a minimum space of 3.3 feet (1m) in
front of the ComfoAir for carrying out maintenance.The
ComfoAir does not require any space at the sides for ef-
fective operation.
Do not mount the side of the ComfoAir against
the wall due to the risk of impact sound.
2.6.3 Connection of the air ducts
The following aspects must be taken into account, while
installing the air ducts:
■ Install the air exhaust duct so it drains in the direction
of the ComfoAir.
■ Insulate the outside air supply and the air exhaust
duct between the roof/wall passage to render the
ComfoAir damp proof. This prevents the formation of
condensation on the outside of the ducts.
■ To prevent unnecessary temperature loss in either
the summer or the winter, we recommend fitting ther-
mal and damp-proof insulation to the supply ducts
from the ComfoAir up to the supply valves.
■ Install the air ducts with a minimum ø of 4.92 inch
(125 mm), as little air resistance as possible and free
from air leakage.
■ Install a silencer of at least 3.3 feet (1m) straight di-
rectly onto the supply and return airconnections. For
relevant advice, please contact Zehnder.
■ Do not install a flexible air duct system. These will
disturb the basic operating principle of the balanced
ventilation system.
■ We recommend that the ventilation system is fitted
with intake and exhaust valves made by Zehnder.
Supply air Return air
Exhaust air Outside air
ComfoAir 200 - Left

EN - 9
Return air Supply air
Outside air Exhaust air
ComfoAir 200 - Right
2.6.4 Connection of the condensation drain
The ComfoAir is fitted with an enthalpy exchanger the
humidity from the extracted air is partly transferred to
the fresh supply air. In this case you delay the process
of drying
out the house in dry winter months, additionally there is
no condensate that must be drained from the ComfoAir.
Therefore a condensation drain is not necessary with an
enthalpy exchanger.
Ensure that the condensation drain is sealed.
This prevents the ComfoAir from sucking in
any leakage air.
The condensation drain can be sealed with a standard
plug.
2.7 Commissioning the ComfoAir
After installation, the ComfoAir must be commissioned.
This can be done via the P menus on the digital operat-
ing device. These P menus can be used to enter vari-
ous settings (ventilation programmes, in particular) for
the ComfoAir. An overview of the available P menus is
given below:
Menu Options
P1 Reading statuses (from menu P2)
P2 Setting time delays
P3 Setting and reading the ventilation levels
P4 Setting and reading the temperatures
P5 Setting additional programmes
P6 Setting additional programmes
P7 Reading and resetting malfunctions (and system
information)
P8 Setting the RF input and analogue
inputs (0-10V)
P9 Reading statuses (from menu P5 and P6)
P menus P1, P2 and P9 can be accessed by the user,
mainly to read statuses and set time delays. The remain-
ing P menus P3 to P8 are intended solely for the installer.
The ComfoAir's bypass valve will not work for
the first 4 minutes after a power cut unless the
programme mode is activated.

10 - EN
2.7.1 P menus for the user
Menu P1 ¨ Status of programmes
Status
Sub-menu Description Activated
P11 Is menu 21 currently active? Yes (1) / No (0)
P12 Is menu 22 currently active? Yes (1) / No (0)
P13 Is menu 23 currently active? Yes (1) / No (0)
P14 Is menu 24 currently active? Yes (1) / No (0)
P15 Is menu 25 currently active? Yes (1) / No (0)
P16 Is menu 26 currently active? Yes (1) / No (0)
P17 Is the Summermode currently active? Yes (1) / No (0)
Menu P2 ¨ Setting time delays
Time delay values
Sub-menu Description Minimum Maximum General
Reset
P21
(Optional)
Note:
Only applies to systems
fitted with a corded switch and a
second switch in the bathroom.
Delay timer for the bathroom switch (to switch to high
position).
■ 'x' minutes after operating the bathroom switch, the
ComfoAir switches to the high setting.
- Low voltage input
0 Min. 15 Min. 0 Min.
P22
(Optional)
Note:
Only applies to systems
fitted with a corded switch and a
second switch in the bathroom.
Overrun timer for the bathroom switch (to switch to normal
position).
■ 'x' minutes after operating the bathroom switch, the
ComfoAir switches back to the normal setting.
- Low voltage input
0 Min. 120 Min. 30 Min.
P23
(Optional)
n/a 0 Min. 120 Min. 0 Min.
P24 Filter warning
■ 'x' weeks after cleaning the filters the "filter dirty" alert
will reappear.
10 weeks 26 weeks 16 weeks
P25 n/a 1 Min. 20 Min. 10 Min.
P26 n/a 1 Min. 120 Min. 30 Min.
P27
Note:
Only applies to systems fitted with a
ComfoSense panel.
Time for the Boost setting.
■ After turning on the PARTY TIMER on the ComfoSense
panel, the ComfoAir will switch to the high setting for 'x'
minutes and then automatically returns tot the NORMAL
setting
If any 3-position switch is operated during this lagging time
the ComfoAir will instantly revert to the ventilation position
as set at that time.
0 Min. 120 Min. 30 Min.

EN - 11
Menu P9 ¨ Status of programmes (from menu P5 and P6 additional programmes)
Status
Sub-menu Description Activated
P90 Open fire programme active? Yes (1) / No (0)
P91 Bypass Open? Yes (1) / No (0)
P94 Analogue input (0-10V) active? Yes (1) / No (0)
P95 Frost protection active? Yes (1) / No (0)
P97 Enthalpy programme active? Yes (1) / No (0)
2.7.2 P menus for the installer
Menus with a line at minimum and maximum value are Reading menus.
Menu P3 ¨ Setting ventilation programmes
Ventilation programme values
Submenu Description Minimum Maximum General
Reset
P30 Setting the capacity (in %) of the
exhaust fan in ABS E N T PO S ITION.
0% or 15% 97% nL / HL
15% / 15%
P31 Setting the capacity (in %) of the
exhaust fan in LO W PO S ITION.
16% 98% nL / HL
35% / 40%
P32 Setting the capacity (in %) of the
exhaust fan in MEDIUM POS I TION.
17% 99% nL / HL
50% / 70%
P33 Setting the capacity (in %) of the
exhaust fan to H I GH P O SITION.
18% 100% nL / HL
70% / 90%
P34 Setting the capacity (in %) of the
supply fan to A B SENT POSITI O N.
0% or 15% 97% nL / HL
15% / 15%
P35 Setting the capacity (in %) of the
supply fan in LOW POS I T ION.
16% 98% nL / HL
35% / 40%
P36 Setting the capacity (in %) of the
supply fan in M ED IUM P OSITIO N.
17% 99% nL / HL
50% / 70%
P37 Setting the capacity (in %) of the
supply fan in H IG H P O SITION.
18% 100% nL / HL
70% / 90%
P38 Current capacity (in %) of the
exhaust fan.
- - Current %
P39 Current capacity (in %) of the
supply fan.
- - Current %
Menu P4 ¨ Reading the temperatures
Temperature values
Submenu Description Minimum Maximum General
Reset
P41 Comfort temperature 12 oC28 oC20 oC
P45 Current value of T1
(= outside air temperature)
- - Current oC
P46 Current value of T2
(= supply air temperature)
- - Current oC
P47 Current value of T3
(= return air temperature)
- - Current oC
P48 Current value of T4
(= exhaust air temperature)
- - Current oC
All temperatures are in degrees Celsius (°C). In the back of this document you can find an conversion
table. (°F = °C × 1.8 + 32)

12 - EN
Menu P5 ¨ Setting additional programmes
Additional programme values
Submenu Description Minimum Maximum General Reset
P50 Activation of the open fire programme. 0 (= No) 1 (= Yes) 0
P51 n/a 0 (= No) 1 (= Yes) 0
Leave the value at '0'.;
P52 n/a 0 3 2
P54 Confirming the presence of a bypass. 0 (= No) 1 (= Yes) 1
The standard ComfoAir configuration includes a bypass. Therefore, leave the value at ‘1’.
P56 Setting the required air volume in the house.
■ nL: ”normal air volume”.
■ HL: "high air volume".
nL HL HL
Setting the air volume is the starting point for programming the air specifications and setting the fans.
P57 Setting the ComfoAir type.
■ Li = ”Left-hand version”.
■ Re = ”Right-hand version”.
Li Re Li
With delivery the ComfoAir is correctly pre-programmed at the factory.
After an general reset the pre-programming is lost and the setting must be reset.
The right setting is mentioned on the identification plate on the side of the ComfoAir.
P58 n/a 0 1 0
P59 Confirming the presence of an enthalpy exchanger.
■ 0; Enthalpy exchanger not fitted
■ 1; Enthalpy exchanger with RH sensor.
■ 2; Enthalpy exchanger without RH sensor.
0 (= No) 2 (= Yes) 0
Ensure the condensation drain is sealed.
If an enthalpy exchanger without a sensor is selected, then the safety programme will not be activated and
malfunction alerts EA1 & EA2 will never occur.
Menu P6 ¨ Setting additional programmes
Temperature values
Submenu Description Minimum Maximum General
Reset
P60 n/a 0 (= No) 3 (= Yes) 0

EN - 13
Menu P7 ¨ Reading malfunctions (and system information)
(Malfunction) information values
Submenu Description Minimum Maximum General
Reset
P70 Current software version. Version number of the software (without “v”)
P71 Most recent malfunction. Code in accordance with alarm and malfunction alert
P72 Malfunction before the most recent one Code in accordance with alarm and malfunction alert
P73 Malfunction before the most recent two Code in accordance with alarm and malfunction alert
P74 Resseting malfunction(s)
■ Set value to '1' and press "OK" on the ComfoSense
panel.
01 (= activate) 0
P75 General reset.
■ Press "OK" on the display or the ComfoSense panel for
at least 5 seconds to carry out a
general reset.
All original software settings are restored
following a general reset.
01 (= activate) 0
Note:
After a general reset, the ComfoAir will ask you to reset the “nL / HL” (see P56) and “Li / Re” (see P57) settings.
Following a general reset, all settings and programmes need to be checked and set to the right value.
P76 Self-testing the ComfoAir 01 (= activate) 0
■ The ComfoAir will run at maximum Rotation Per Minute (RPM).
■ The bypass valve will open and close.
P77 Resetting filter dirty counter 01 (= activate) 0
Note:
This resets the counter that triggers a dirty filter alert on the ComfoAir. This allows the filter to be cleaned or replaced before
the dirty filter alert appears.
Menu P8 ¨ Setting the RF input and digital inputs (0-10V)
Analogue input values
Submenu Description Minimum Maximum General Reset
810 Analogue input 1
0= not fitted 1= fitted
0 1 0
811 0= controlling 1= programming (analogue input 1) 0 1 0
812 set point analogue input 1
(programming)
0 100 50
813 min. setting analogue input 1 0 99 0
814 max. setting analogue input 1 0 100 100
815 0=positive analogue input 1 1=negative setting analogue
input 1
0 1 0
816 read-out analogue input 1 0 100 -
820 Analogue input 2
0= not fitted 1= fitted
0 1 0
821 0= controlling 1= programming (analogue input 2) 0 1 0
822 set point analogue input 2
(programming)
0 100 50
823 min. setting analogue input 2 0 99 0
824 max. setting analogue input 2 0 100 100
825 0=positive analogue input 2 1=negative setting analogue
input 2
0 1 0
826 read-out analogue input 2 0 100 -
850 n/a 0 1 0
851 n/a 0 1 0
852 n/a 0 100 50
853 n/a 0 99 0
854 n/a 0 100 100
855 n/a 0 1 0
856 n/a 0 100 -
n/a

14 - EN
2.8 Programming air specifications
After installation, the ComfoAir must be programmed.
This can be done using the air specifications of the Com-
foAir above.
The default settings of the ComfoAir nL are:
Position AB S EN T 15%
Position LOW 35%
Position MED I UM 50%
Position HIG H 70%
The default settings of the ComfoAir HL are:
Position AB S EN T 15%
Position LOW 40%
Position MED I U M 70%
Position HIG H 90%
Follow this procedure to programme the ComfoAir (after
installation):
1. Set the ComfoAir in programming mode.
a. Press OK. The display shows SHIFT for 8 sec-
onds.
b. Press MENU before the SHIFT text disappears.
The display now shows COMF.
c. Press or to select INIT.
d. Press OK. The display flashes the text INIT ON.
e. Confirm with OK. The display shows OK for 2
seconds.
The text INIT is visible in the main menu.
In programming mode, the bypass valve is al-
ways closed. After 30 minutes, the ComfoAir au-
tomatically terminates the programming mode.
2. Close all windows and outside doors.
3. Close all inside doors.
4. Check the presence of structural overflow provisions.
The structural overflow provisions must be at
least 0,41 inch per gallon/second (12cm2 per l/s).
5. Check if both fans function in the three speed set-
tings.
6. Switch the ComfoAir to high speed.
7. Install all valves and set the valves according to the
settings given or as set in the reference house.
If no data are known:
– Install the valves and open them as far as pos-
sible.
– Measure the air volumes; starting with the intake
air and then the exhaust air.
– If the measured air volumes deviate from the
nominal air volumes by more than +/-10%, and
the majority of the deviations is positive, ensure
that all deviations are positive. If the majority of
all deviations is negative, ensure that all devia-
tions are negative. Ensure that one supply valve
and one exhaust continue to be fully open.

EN - 15
8. Change the fan settings in P menus P30 to P37 of the
digital operating device.
– Select the lowest possible setting in order to con-
serve energy.
– Ensure that the ratios between low, medium and
high remain equal.
Use the chart of the ComfoAir's air specifica-
tions to set the fans.
9. In the event that the currently set air volumes still de-
viate too much: Adjust the valves.
10. Check the entire installation again, after all valves
have been set.
11. Switch the ComfoAir (back) to ventilation position 2.
a. Press OK. The display shows SHIFT for 8 sec-
onds.
b. Press MENU before the SHIFT text disappears.
The display now shows COMF.
c. Press or to select INIT.
d. Press OK. The display flashes the text INIT OFF.
e. Confirm with OK. The display shows OK for 2
seconds.
2.9 Maintenance by the installer
The following maintenance must be carry out by the in-
staller:
■ Inspecting and (if necessary) cleaning the heat ex-
changer;
■ Inspecting and (if necessary) cleaning the fans.
A concise explanation of these maintenance activities is
given in the paragraphs below.
Check the condensation drain once every 2
years.
Failure to carry out (periodic) maintenance on
the ComfoAir ultimately compromises the per-
formance of the ventilation system.
2.9.1 Inspecting and cleaning the heat exchanger
Check the heat exchanger once every 2 years
1. Disconnect the power from the ComfoAir.
2. Remove the filter caps from the ComfoAir.
3. Release the front panel by unscrewing the screws
(C).
The front swings forward on ceiling-moun-
ted units.
4. Lift front panel from its hinges.
5. Disconnect condensation drain.
Take care not to trap your fingers when
mounting front panel.
6. Remove the leakage tray by removing the screws
(D and E).
The heat exchanger and leakage tray may con-
tain water!
7. Rotate locking nuts (G) on heat exchanger
a quarter of a turn.
The heat exchanger may fall downwards on
ceiling-mounted units, so ensure the heat ex-
changer is supported when rotating the locking
nuts.

16 - EN
8. Pull strip to remove heat exchanger (D).
9. Inspecting and if necessary clean the heat ex-
changer.
- Use a soft brush to clean the lamellae.
- Use a vacuum cleaner or air gun (no high pressure)
to remove dirt and dust.
Always clean against the direction of the air-
flow. This prevent dirt from getting stuck in the
heat exchanger.
a. Submerge the heat exchanger several times in hot
water (max. 40 °C).
b. Rinse the heat exchanger with clean hot tap water
(max. 40 °C).
c. Clasp the heat exchanger between both hands (on
the coloured side surfaces) and shake the water
from the heat exchanger.
Do not use aggressive cleaning agents or sol-
vents.
If the fans also need maintenance do not re-in-
stall the heat exchanger yet.
10. If no more maintenance is necessary install all
parts in reverse order, reconnect the power and
carry out the self-test in accordance with menu
P76.
Fasten the screws to a maximum of 1.5 Nm.
This is roughly equal to setting 2 of an average
battery-powered drill.
2.9.2 Inspecting and cleaning the fans
Check the fans once every 2 years.
1. Remove the heat exchanger as instructed in the
maintenance chapter of the heat exchanger
2. Remove the inflow nozzle (F) by unscrewing the 2
screws surrounding the scroll casing.
3. Inspecting and if necessary clean the fans (O).
- Use a soft brush to clean the fan impellers.
- Use a vacuum cleaner to remove dust.
Do not damage the fan impellers or temperatu-
re sensor.
4. Install all parts in reverse order.
5. Carry out the self-test in accordance with menu
P76.
Fasten the screws to a maximum of 1.2 ft. lbf
(1.5Nm). This is roughly equal to setting 2 of an
average battery-powered drill.
2.10 Malfunctions
Malfunctions in the ComfoAir are reported as follows:
■ The malfunction alert appears on the ComfoSense
panel.
Malfunction alerts may not appear on the digital operat-
ing device in all cases, even though there is a malfunction
(or problem). A concise explanation of both types of mal-
function (or problem) is given in the paragraphs below.

EN - 17
2.10.1Malfunction alerts on the digital operating device
In the event of a malfunction, the corresponding malfunc-
tion code will be displayed on the digital operating device
of the ComfoAir.
Below is a list of the malfunction alerts on the digital op-
erating device.
In the chapter about trouble shooting is explained how to
solve these malfunctions
Code Description
A0 n/a
A1 NTC sensor T1 is defective.
(= outside air temperature)
A2 NTC sensor T2 is defective.
(= supply air temperature)
A3 NTC sensor T3 is defective.
( =return air temperature)
A4 NTC sensor T4 is defective.
(= exhaust air temperature)
A5 Malfunction in the bypass motor.
A6 n/a
E1 Exhaust fan not rotating.
E2 Supply fan not rotating.
EA1 Enthalpy sensor measures excessive
Relative Humidity (RH) values.
EA2 No communication between the enthalpy
sensor and the ComfoAir.
COMM
ERROR
No communication between the
ComfoSense panel and the ComfoAir.
FLTR Internal Filter is dirty.