Lennox EMEA FLATAIR2 User manual

www.lennoxemea.com
FLATAIR2
8 - 34 kW
HORIZONTAL PACKAGED AIR CONDITIONER
INSTALLATION, OPERATING
AND MAINTENANCE
FLATAIR ADV2 IOM-
MIL161E-0920-09/2020

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Installation Manual • FLATAIR ADV2 IOM-MIL161E-0920-09/2020
Read this manual before installation, reparation o maintenance works.
POINTS TO BEAR IN MIND
DATA PAGE FOR COMMISSIONING UNIT
SAFETY CODES & REGULATIONS
GENERAL CHARACTERISTICS
Product range
General description
Physical data
Electrical data
Operating limits
Fan performances
Refrigeration drawings
Sound levels
Dimensions - split units
Dimensions - packaged units
Airow conguration - Duct positions
Options
INSTALLATION
Preliminary preparations
Unit acceptance
Optional operations prior to unit instalation
Unit location
Installation clearances
Drains
Cooling connections
Electrical connections
Terminal connection
Probes installation
COMMISSIONING AND OPERATION
Preliminary checks
Preliminary checks at startup
CLIMATIC™ Conguration
MAINTENANCE
PREVENTIVE MAINTENANCE
MAINTENANCE PLAN
CORRECTIVE MAINTENANCE
FAILURE DIAGNOSIS
END OF LIFE CYCLE OF THE UNIT
Lennox have been providing environmental solutions since 1895, our FLATAIR ADVANCED 2 range continues to meet the standards that have made LENNOX a
household name. Flexible design solutions to meet your needs and uncompromising attention to detail. Engineered to last, simple to maintain and Quality that comes
as standard. For information on local contacts at www.lennoxeurope.com.
The manufacturing of these units is made under the requirements of the ISO 9001 and ISO 14001.
The English version is the original version. Existing versions in other languages are translations of the original version. In the event of a conict of interpretation
between the translated versions and the original version, the original version shall prevail.
All the information contained in this manual, including any drawing and technical descriptions provided by us, remain the property of Lennox and must not be used
(except in the operation of this product), reproduced, issued to or made available to third parties without the prior written agreement of Lennox.
LENNOX, in its commitment to preserve the environment, has an Environmental Management System based on ISO 14001, through which all environmental aspects
generated during its activity are managed and continuously improved, taking into account the life cycle of the products we manufacture and market.
For this reason, you: customer, user and / or maintainer of the equipment, are invited to join our commitment to conserve our environment, and follow the indications
that we expose throughout this manual.

• 2 • Installation Manual • FLATAIR ADV2 IOM-MIL161E-0920-09/2020
Switch o󰀨 the general power switch of the air conditioning unit on the electrical panel of the location.
The cleaning of lters does not require specialized personnel. For any other types of interventions like electrical or mechanical,
advise the specialized technician.
Abrasive
surfaces
Risk of injury by
moving objects
High
temperatures
Low
temperatures
Risk of injury by
rotating objects
Electrical
voltage
ELECTRICAL CONNECTIONS
Make sure to switch o󰀨 the power before installing, repairing or carrying out maintenance on the unit, in order to prevent
serious electrical injury.
Keep local and national legislation in mind when installing the unit.
Standard Guidelines to Lennox equipment:
All technical data contained in these operating instructions, including the diagrams and technical description remains the property of
Lennox and may not be used (except for the purpose of familiarizing the user with the equipment), reproduced, photocopied, trans-
ferred or transmitted to third parties without prior written authorization from Lennox.
The data published in the operating instructions is based on the latest information available. We reserve the right to make modi
cations without notice.
We reserve the right to modify our products without notice without obligation to modify previously supplied goods.
These operating instructions contain useful and important information for the smooth operation and maintenance of your equipment.
The instructions also include guidelines on how to avoid accidents and serious damage before commissioning the equipment and
during its operation and how to ensure smooth and fault-free operation. Read the operating instructions carefully before starting the
equipment, familiarize yourself with the equipment and handling of the installation and carefully follow the instructions. It is very impor-
tant to be properly trained in handling the equipment. These operating instructions must be kept in a safe place near the equipment.
Like most equipment, the unit requires regular maintenance. This section concerns maintenance and management personnel.
If you have any queries or would like to receive further information on any aspect relating to your equipment,
do not hesitate to contact us.
POINTS TO BEAR IN MIND
DANGER AND WARNING SIGNS
WARNING - REMEMBER
To avoid possible death or injuries from electric shock, ensure to open the electrical
disconnect switch of the network before accessing the unit for its installation, repair or
maintenance.
If the lter is too dirty, wash it in a container with water and neutral soap, drying it in
the shade before inserting it back into the unit.
FILTER CLEANING

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1 ºC
2 ºC
1 ºC
2 ºC
1 ºC
2 ºC
1 ºC
2 ºC
Installation Manual • FLATAIR ADV2 IOM-MIL161E-0920-09/2020
D ATA PAGE FOR UNIT COMMISSIONING
UNIT:
INSTALLER TEL:INSTALLER:
CONTROL PANEL IDENTIFICATION CODE:
INSTALLATION ADDRESS:
SERIAL Nr:
CHECKS:
DATE OF COMMISSIONING:
SUPPLY VOLTAGE: RATED VOLTAGE OF THE UNIT:
UNIT ON SHOCK ABSORBERS
DRAINAGE WITH TRAP
MAIN POWER SUPPLY CONNECTION
CONTROL PANEL CONNECTION
COMPRESSOR OIL LEVEL INDICATOR
YES NO
DATA INPUT:
COOLING CYCLE
Air intake temperature to the outdoor coil:
Air output temperature to the outdoor coil:
High pressure:
Low pressure:
circuit 1
circuit 2
circuit 1
circuit 2
Air intake temperature to the outdoor coil:
Air output temperature to the outdoor coil:
High pressure:
Low pressure:
circuit 1
circuit 2
circuit 1
circuit 2
HEATING CYCLE
ELECTRIC POWER CONSUMPTION (Amps)
Compressor 1
Compressor 3
Outdoor fan section 1
Outdoor fan section 2
Options installed:
Comments:
Compressor 2
INSTALLER ADDRESS:
Compressor 1
Compressor 3
Outdoor fan section 1
Outdoor fan section 2
Compressor 2

• 4 • Installation Manual • FLATAIR ADV2 IOM-MIL161E-0920-09/2020
SAFETY CODES & REGULATIONS
THE UNIT MUST BE INSTALLED IN ACCORDANCE WITH LOCAL SAFETY CODES AND REGULATIONS AND CAN ONLY BE
USED IN WELL VENTILLATED AREA.
PLEASE READ CAREFULLY THE MANUFACTURER’S INSTRUCTIONS BEFORE STARTING THIS UNIT.
INSPECTIONS AND REQUALIFICATION ACCORDING PRESSURE EQUIPMENT DIRECTIVE MUST FOLLOW THE LOCAL
REGULATIONS WHERE THE UNIT IS INSTALLED.
EMC DIRECTIVE COMPLIANCE
WARNING:
The units FLATAIR ADVANCED 2 range are designed to heat or cool buildings in industrial, commercial and residential environ-
ments. What di󰀨erentiates these environments is the position of the HT / LV transformer in the power supply to the buildings. In
the case of the industrial environment, the HT / LV transformer is dedicated and installed in the industry itself. On the other hand,
for the residential, commercial and light industry, the HT / LV transformer is common to a zone and supplies both commercial, light
industrial buildings and houses (individual houses and buildings) in parallel.
So to meet all of these environments, the units have been tested according to the most stringent standards of the 2 environments
that are:
• EN61000-6-3: emission for residential, commercial and light industry environments:
• EN61000-6-2: immunity for industrial environment.
As regards immunity, all the tests carried out were in conformity.
As regards emissions:
• Meets the EN61000-6-3 (emission for residential, commercial and light industry environments)
• The short-circuit ratio Rsce > 350 corresponding to the standard EN 61000-3-12 concerning the measurement of harmonics
on the network.
• No maximum permissible impedance of the network Zmax is necessary to declare from standard EN 61000-3-11 because
the equipments tested are in conformity with the standard. The connection to the main is not a conditional connection (the
connection is possible to all the mains without restriction on the impedance value).
All units are compliant with the PED directive.
1. Attention: The high-pressure safety switches are essential elements which guarantee the system remains within the
admissible operating limits. Before switching on the installation, always ensure all electrical connections are correct
on these elements which are used to isolate the electrical power supply to the compressor(s) they protect. Carry out a
test to ensure the electrical power supply is e󰀨ectively isolated when the pressure switch attains its set value.
2. In case of installation in a seismic zone or in a zone which may be e󰀨ected by violent natural occurrences such as
storms, tornados, oods, tidal waves, etc…, the installer and/or operator will refer to valid standards and regulations
in order to ensure the devices required are available as our units are not designed to operate under such conditions
without prior precautions.
3. The equipment is not designed to resist re. The installation site will therefore have to respect valid standards with
regard to protection against re (emergency instructions, map…).
4. In case of exposure to corrosive external atmospheres or products, the installer and/or operator shall take the
necessary precautions to avoid damage to the equipment and will make sure the equipment provided has the neces-
sary and su󰀩cient anti-corrosion protection.
5. To respect a su󰀩cient number of supports for the piping according to their size and weight under operating condi-
tions and to design the piping to avoid a water hammer phenomenon
6. For technical reasons, it is not possible to carry out hydrostatic tests on all our units so leak tests are carried out as
a compensatory measure. (The entire circuit is checked using leak detectors). For machines charged with refrigerant,
at the end of the test, an HP test is carried out in the factory to make sure the pressure switch is working properly.
7. Before any work is carried out on the refrigeration circuit, the dry air or nitrogen pressure our units are supplied with
must be released (For units not charged with refrigerant in the factory.)
8. The emissions of refrigerant via the safety relief valves must be channeled to the exterior of the machine room. The
outlet relief valve will have to be sized in compliance with EN13136.
9. Installation and maintenance of these machines must be carried out by personnel qualied to work on refrigeration
equipment.
10. All interventions must be carried out in conformity with valid safety regulations (e. g.: NF EN 378), as well as the
recommendations indicated on the labels and handbooks provided with the machine. All actions shall be taken to
avoid access of unauthorized persons.
11. It is essential that any pipework or ot
her components of the refrigeration circuit hazardous to people because of their surface temperature are insulated or
identied.
12. Ensure that the installation zone (room or area) of the machine has restricted access and ensure the good condi-
tion of the covering.