Zehnder Rittling ComfoAir 550 Luxe User guide

ComfoAir 550 Luxe
Installer Manual
Cooling Fresh Air Clean AirHeating

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.

III - EN
Table of Contents
TABLE OF CONTENTS .............................................................................................................................................. III
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 wall.................................................................................................................... 7
2.6.2 Connection of the air ducts .......................................................................................................... 7
2.6.3 Connection of the condensation drain ....................................................................................................8
2.7 Commissioning the ComfoAir................................................................................................................... 9
2.7.1 P menus for the user ................................................................................................................. 10
2.7.2 P menus for the installer............................................................................................................. 11
2.8 Programming air specifications............................................................................................................... 15
2.9 Maintenance by the installer................................................................................................................... 16
2.9.1 Inspecting and cleaning the heat exchanger................................................................................ 16
2.9.2 Inspecting and cleaning the fans ................................................................................................ 17
2.10 Malfunctions ......................................................................................................................................... 17
2.10.1 Malfunction alerts on the digital operating device......................................................................... 17
2.10.2 What to do in the event of a malfunction / Trouble shooting ......................................................... 18
2.10.3 Malfunctions (or problems) without alerts..................................................................................... 26
2.11 Service parts......................................................................................................................................... 27
2.12 Wiring diagram: ComfoAir 550 Luxe – LEFT-HAND version...................................................................... 28
2.13 Wiring diagram: ComfoAir 550 Luxe – RIGHT-HAND version ................................................................... 29
2.14 UL Listing Declaration............................................................................................................................30
2.15 Temperature conversion table ............................................................................................................... 30

EN - 1
Preface
Carefully read this manual before use.
This manual provides all the information required for
safe and optimal installation and maintenance of the
ComfoAir 550 Luxe. It is also intended as a reference
for servicing, so that this can be carried out in a re-
sponsible manner. The device is subject to continu-
ous development and improvement. As a result, the
ComfoAir 550 Luxe may slightly differ from the de-
scriptions.
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 550 Luxe. In the fol-
lowing 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 Com-
foAir has a UL marking on the identification plate. The
identification plate can be found on top of the Com-
foAir.
1.1 Warranty and liability
1.1.1 Warranty conditions
The ComfoAir is covered by a manufacturer’s war-
ranty for a period of 24 months after fitting up to a
maximum of 30 months after the date of manufac-
ture. Warranty claims may only be submitted for ma-
terial 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 manufacturer. Spare parts are
only covered by guarantee, if they were supplied by
the manufacturer and have been installed by an ap-
proved 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”. Any other
use is deemed unintended use and can lead to dam-
age to the ComfoAir or personal injury, for which the
manufacturer cannot be held liable.
The manufacturer is not liable for any damage origi-
nating from:
■ Non-compliance with the safety, operating and
maintenance instructions in this manual;
■ The use of components not supplied or recom-
mended 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, warn-
ings, notes and instructions in this manual can cause
personal injury or damage to the ComfoAir.
■ The ComfoAir may only be installed, connected,
rendered operational and maintained by an ap-
propriately approved installer, unless otherwise
indicated in this manual;
■ Installation of the ComfoAir must be carried out in
accordance with the general and locally applica-
ble construction, safety and installation instruc-
tions of the local council, electricity and water
boards or other agencies;
■ Observe the safety regulations, warnings, com-
ments and instructions as prescribed in this man-
ual 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 carefully 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 National 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 direct-
ly to any appliance. Recommended maximum
ambient temperature is 122°F (50°C );
■ It is recommended to take out a maintenance
contract so that the device is checked on a regu-
lar 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 (900mm).
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 compro-
mised if instructions are not observed
carefully.
Risk of personal injury to the user or
installer.
The ComfoAir identification plate is shown below:









 










 








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 plate filters (D) for air purification. Filter classification: outside air G4, return air G4;
■ 2 energy-efficient DC motors (E) with high-efficient fan;
■ HE (High Efficient)) heat exchanger (with optional moisture exchanger) (F);
■ Display (G) to read data and for setting procedures;
■ Electronics compartment (H) for connecting external switches and controllers;
■ Removable PCB unit (H2);
■ Identification plate (I) detailing information on the ComfoAir (not visible);
■ Condensation drain connector (J);
■ Sticker (K) detailing air connections;
■ Cable for power supply with 240V ground connection plug (L).

4 - EN
2.2 Technical specifications
ComfoAir 550 Luxe (nL setting)
Position Ventilation capacity Power
Absent Setting 29.43 CFM (50 m3/h) at 0.02 in.w.c. (5 Pa) 13 W
Low Setting 88.29 CFM (150 m3/h) at 0.20 in.w.c. (50 Pa) 30 W
Medium Setting 132.43 CFM (225 m3/h) at 0.40 in.w.c. (100 Pa) 69 W
High Setting 194.23 CFM (330 m3/h) at 0.86 in.w.c. (215 Pa) 160 W
Maximum 270.75 CFM (460 m3/h) at 1.65 in.w.c. (410 Pa) 350 W
Position Ventilation capacity Current
Absent Setting 29.43 CFM (50 m3/h) at 0.02 in.w.c. (5 Pa) 0.12 A
Low Setting 88.29 CFM (150 m3/h) at 0.20 in.w.c. (50 Pa) 0.25 A
Medium Setting 132.43 CFM (225 m3/h) at 0.40 in.w.c. (100 Pa) 0.57 A
High Setting 194.23 CFM (330 m3/h) at 0.86 in.w.c. (215 Pa) 1.21 A
Maximum 270.75 CFM (460 m3/h) at 1.65 in.w.c. (410 Pa) 2.46 A
Electricity
Power supply 230 / 50-60 V/Hz
Cos.phi at Maximum 0.8
Connecting Power 1.70 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 29.43 CFM (50 m3/h) at 0.02 in.w.c. (5 Pa) 36 dB(A)
Low Setting 88.29 CFM (150 m3/h) at 0.20 in.w.c. (50 Pa) 54 dB(A)
Medium Setting 132.43 CFM (225 m3/h) at 0.40 in.w.c. (100 Pa) 63 dB(A)
High Setting 194.23 CFM (330 m3/h) at 0.86 in.w.c. (215 Pa) 71 dB(A)
Maximum 270.75 CFM (460 m3/h) at 1.65 in.w.c. (410 Pa) 79 dB(A)
Exhaust fan noise level (at 0 m)
Position Ventilation capacity Sound power
Absent Setting 29.43 CFM (50 m3/h) at 0.02 in.w.c. (5 Pa) 29 dB(A)
Low Setting 88.29 CFM (150 m3/h) at 0.20 in.w.c. (50 Pa) 39 dB(A)
Medium Setting 132.43 CFM (225 m3/h) at 0.40 in.w.c. (100 Pa) 49 dB(A)
High Setting 194.23 CFM (330 m3/h) at 0.86 in.w.c. (215 Pa) 63 dB(A)
Maximum 270.75 CFM (460 m3/h) at 1.65 in.w.c. (410 Pa) 63 dB(A)

EN - 5
ComfoAir 550 Luxe (HL setting)
Position Ventilation capacity Power
Absent Setting 29.43 CFM (50 m3/h) at 0.02 in.w.c. (5 Pa) 13 W
Low Setting 105.94 CFM (180 m3/h) at 0.24 in.w.c. (60 Pa) 41 W
Medium Setting 194.23 CFM (330 m3/h) at 0.86 in.w.c. (215 Pa) 160 W
High Setting 253.09 CFM (430 m3/h) at 1.45 in.w.c. (360 Pa) 310 W
Maximum 270.75 CFM (460 m3/h) at 1.65 in.w.c. (410 Pa) 350 W
Position Ventilation capacity Current
Absent Setting 29.43 CFM (50 m3/h) at 0.02 in.w.c. (5 Pa) 0.12 A
Low Setting 105.94 CFM (180 m3/h) at 0.24 in.w.c. (60 Pa) 0.35 A
Medium Setting 194.23 CFM (330 m3/h) at 0.86 in.w.c. (215 Pa) 1.21 A
High Setting 253.09 CFM (430 m3/h) at 1.45 in.w.c. (360 Pa) 2.22 A
Maximum 270.75 CFM (460 m3/h) at 1.65 in.w.c. (410 Pa) 2.46 A
Electricity
Power supply 230 / 50-60 V/Hz
Cos.phi at Maximum 0.8
Connecting Power 1.70 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 29.43 CFM (50 m3/h) at 0.02 in.w.c. (5 Pa) 36 dB(A)
Low Setting 105.94 CFM (180 m3/h) at 0.24 in.w.c. (60 Pa) 58 dB(A)
Medium Setting 194.23 CFM (330 m3/h) at 0.86 in.w.c. (215 Pa) 71 dB(A)
High Setting 253.09 CFM (430 m3/h) at 1.45 in.w.c. (360 Pa) 78 dB(A)
Maximum 270.75 CFM (460 m3/h) at 1.65 in.w.c. (410 Pa) 79 dB(A)
Exhaust fan noise level (at 0 m)
Position Ventilation capacity Sound power
Absent Setting 29.43 CFM (50 m3/h) at 0.02 in.w.c. (5 Pa) 29 dB(A)
Low Setting 105.94 CFM (180 m3/h) at 0.24 in.w.c. (60 Pa) 44 dB(A)
Medium Setting 194.23 CFM (330 m3/h) at 0.86 in.w.c. (215 Pa) 55 dB(A)
High Setting 253.09 CFM (430 m3/h) at 1.45 in.w.c. (360 Pa) 63 dB(A)
Maximum 270.75 CFM (460 m3/h) at 1.65 in.w.c. (410 Pa) 63 dB(A)
General Specifications
HE Exchanger Material Polystyrene
Interior Material (E)PP / PA / PA
Thermal Yield 95%
Mass 103.62 lb (47 kg)
Maximum ambient temperature 122°F

6 - EN
2.3 Dimension sketch
31.50"
28.52"
22.40"
11.04" 4.90"
19.29"
7.09"
7.87"
11.04"
11.04"
10.43"
ø 1.26
ELECTRICAL AND DATA CONNECTION
CONDENSATION DRAIN
LEFT-HAND VERSION
CONDENSATION DRAIN
RIGHT-HAND VERSION

EN - 7
2.4 Installation conditions
In order to determine whether the ComfoAir can be
installed in a certain area, the following aspects must
be taken into account:
■ The ComfoAir must be installed according to the
general and locally applicable safety and installa-
tion regulations 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 cond
ensation must be drained off frost-free,
at a gradient and incorporate a 'U' bend.
■ We do not recommend installing the ComfoAir in
areas with a higher average humidity (such as ba-
throom or toilet). This will prevent condensation
on the outside of the ComfoAir.
■ 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 air-
flow in the house will stagnate. As a result,
system performance 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.
■ Mounting bracket;
■ Documentation.
The ComfoAir is supplied in the following types:
Type
ComfoAir 550 L Luxe ERV
ComfoAir 550 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 can be ordered separately.
2.6 Mounting of the ComfoAir
2.6.1 Mounting on the wall
23,6"
9,3" (minimum)
40,7" (minimum)
Mount the ComfoAir against a wall with a minimum
mass of 0.28 lb/in2 (200 kg/m2). For other types of
wall, we recommend using the Zehnder mounting
frame on the floor (available as an optional extra).
This reduces contact noise as much as possible. The
ComfoAir does not require 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.
1. Fasten the mounting bracket to the wall. Make
sure it is level and at least 40.7 inch (1035 mm)
from the floor (depending on the type of conden-
sation drain selected).
Leave a minimum space of 3.3 feet (1m) in
front of the ComfoAir for carrying out main-
tenance.
2. Hang the ComfoAir on the mounting bracket.
3. Mount the condensation drain under the Com-
foAir. The stated dimension of 9.3 inch (235 mm)
is an indication only, and is dependent on the
type of condensation drain selected.