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CAIR
pool
OPERATION MANUAL
Table of Contents CAIRpool
2FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications
1 Sample unit type code ...................................................................... 4
2 Safety and user instructions ............................................................ 5
2.1 Availability of the operation manual ................................................................ 5
2.2 Scope of the operation manual ....................................................................... 5
2.3 Symbols used .................................................................................................. 5
2.4 Identification of safety information ................................................................... 7
2.5 Used safety symbols ....................................................................................... 8
2.6 Safety-conscious work procedures ................................................................. 9
2.7 Proper use ..................................................................................................... 11
2.8 Safety devices ............................................................................................... 12
2.9 Modifications and changes ............................................................................ 12
2.10 Spare parts .................................................................................................... 13
2.11 Disposal ........................................................................................................ 13
2.12 Selection and qualification of personnel ........................................................ 13
3 Technical description ..................................................................... 14
3.1 Performance scope ....................................................................................... 14
3.2 Modular unit configuration and operation of CAIRpool ................................. 14
3.3 Technical specifications ................................................................................ 16
3.4 Requirements of ErP Directive 2016/2281 .................................................... 19
4 Shipping and storage ..................................................................... 23
4.1 Delivery ......................................................................................................... 23
4.2 Transport ....................................................................................................... 23
4.3 Storage .......................................................................................................... 26
5 Assembly ......................................................................................... 27
5.1 Unit placement .............................................................................................. 27
5.2 Assembling the unit ....................................................................................... 31
6 Installation ....................................................................................... 49
6.1 Requirements ................................................................................................ 49
6.2 Installing air-conveying components ............................................................. 49
6.3 Installing air-handling components with coil connections .............................. 50
6.4 Installing accessories .................................................................................... 58
7 Electrical connection ...................................................................... 59
7.1 Requirements ................................................................................................ 59
7.2 Connecting unit ............................................................................................. 60
CAIRpool Table of Contents
FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications3
8 Commissioning and maintenance ................................................. 65
8.1 Routine cleaning and maintenance ............................................................... 66
8.2 Maintenance frequency checklist ................................................................... 68
8.3 General considerations .................................................................................. 70
8.4 Fan assembly and drives ............................................................................... 71
8.5 Filter assembly ............................................................................................... 72
8.6 Heater assembly ............................................................................................ 74
8.7 Cooler assembly ............................................................................................ 75
8.8 Evaporator/condenser ................................................................................... 76
8.9 ECOPLAT plate heat exchanger ................................................................... 78
8.10 Damper blades and shut-off dampers ............................................................ 79
8.11 Sound attenuators ......................................................................................... 80
8.12 Commissioning/maintenance of integrated refrigerating systems ................. 80
9 Disassembly and disposal ............................................................. 83
9.1 Dismantling .................................................................................................... 83
9.2 Disposal ......................................................................................................... 83
10 Troubleshooting .............................................................................. 84
11 Annex ............................................................................................... 85
11.1 Maintenance Logbook CAIRpool ................................................................... 85
Copyright note
Disclosing, copying, distributing or taking any action in reliance on the contents of this
document is strictly prohibited without express prior consent. Violations entail liability
for any damages or other liability arising. All rights in relation to patents, utility patents
or design patents are reserved.
Sample unit type code
CAIRpool
4FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications
1 Sample unit type code
Example: CAIR pool X1M# IHÜKZ128064BBKB
Prefix General Unit part 1
Product family
Product group
Series
Unit design class
Thermal separation
Casing
Type of application
Installation site
Air flow direction
Arrangement type
Casing type
Function
Air flow
Unit width
Unit height
Material
Internal skin
Material
External skin
Material
Components
Material of profiles
CAIR
pool (air handling unit)
XSX Unit
1Standard without accessories
2Standard with accessories
3Special design
MPartial
FPre-designed
KWithout
#Standard
SSwimming pool
IIndoor installation
AOutdoor installation
HHorizontal
NSide by Side
ÜDouble deck
ESingle casing
ZSupply air
Unit width (internal size in cm)
Unit height (internal size in cm)
BRAL 9002 coated
4Stainless steel V4A (steel type 1.4571) or equivalent
BRAL 9002 coated
SCoated in special colour
LCoated
KCoated with enhanced corrosion protection
BRAL 9002 coated
Safety and user instructions
CAIRpool
FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications5
2 Safety and user instructions
The CAIRpool units are constructed using the state-of-the-art technology and accord-
ing to recognized safety regulations.
Operation is only allowed if the unit is in perfect working order given that current oper-
ation manual and safety instructions are observed and potential hazards avoided! Oth-
erwise failure to follow these instructions may result in death or injury to the user, third
persons or damage to the unit, connected units or other equipment.
Have all faults repaired by an authorized specialist without delay!
Consider the safety instructions provided by the manufacturers of individual compo-
nents!
2.1 Availability of the operation manual
This operation manual contains important instructions regarding safe and proper oper-
ation of the unit.
This operation manual applies to installation companies, operators, building techni-
cians, technical personnel or instructed persons as well as electricians.
This manual as well as the safety information of the manufacturer of the individual com-
ponents must always be available at the unit's installation site. When working on the
equipment, observe all instructions and precautions in the current operation manual, in
particular the chapter on safety.
2.2 Scope of the operation manual
This operation manual as well as the instructions of the manufacturer of the individual
components provide you the necessary information on the areas:
– Shipping and storage
– Mounting
– Installation and Electrical Connection
– Commissioning and Maintenance
– Disassembly and Disposal
2.3 Symbols used
The following symbols are used to highlight particular text sections in this operation
manual:
– This symbol is used to indicate normal lists.
•This symbol indicates instructions to follow.
9The result of an action is indicated with this symbol.
Danger symbols are specified in section "Identification of safety information" on
page 7.
Notice!
Additional details on using the unit are specified here.
Safety and user instructions
CAIRpool
6FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications
2.3.1 Special warning and danger symbols
The following warning and instruction signs can be secured on the unit:
To connect - counter hold with a pipe wrench.
Attention: fire risk. Dust-laden filters are inflammable.
Before opening, use the main isolator to disconnect power.
Risk of injury. Wait until complete stop before opening.
Type sheet and assembly instructions attached to unit inside. Remove these doc-
uments before the unit commissioning.
Do not start up the fan against closed dampers.
Designation of unit in explosion-risk areas (according to 94/9/EG regulation)
Potential equalisation
To equalize potentials the unit must be connected to an external protective conduc-
tor at the designated points on the base frame.
Safety and user instructions
CAIRpool
FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications7
2.4 Identification of safety information
To designate the safety instructions the following symbols and notices are provided in
appropriate places throughout this document:
2.4.1 DANGER - Death/serious irreversible injury
Indicates an extremely hazardous situation which will result in death or serious irre-
versible injury, if the safety instruction is not followed.
Example:
2.4.2 WARNING - Death/serious injury
Indicates a hazardous situation which can result in death or serious irreversible injury,
if the safety instruction is not followed.
Example:
2.4.3 CAUTION - Minor or moderate injury
Indicates a hazardous situation which can result in minor or moderate injury, if the
safety instruction is not followed.
Example:
Electrocution through hazardous voltage will lead to death or serious injury!
•Disconnect the unit from the power supply and ensure the power cannot be
switched back on.
•Ensure the unit is voltage-free and isolated, earth and short circuit the unit, cover
or shield off neighboring live components.
High concentration of refrigerants in the air can result in death or serious in-
jury!
High concentration of refrigerants in the air may have an anaesthetic effect and
cause unconsciousness. Prolonged exposure may cause irregular heartbeat and
sudden death. Very high concentration of refrigerant may cause suffocation by
reduced oxygen content in the surrounding air.
•You should therefore only work in an adequately ventilated environment, and
exercise due care and attention when carrying out the work.
•Wear protective clothing and, if necessary, an autonomous breathing apparatus.
Sharp edges can cause injuries!
Observe precaution when cleaning due to risk of cuts on thin and sharp edges.
•Wear chemical resistant gloves.
Safety and user instructions
CAIRpool
8FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications
2.4.4 ATTENTION – Environmental or material damage
Indicates actions that can result in equipment or property-damage only accidents.
Examples:
2.5 Used safety symbols
ATTENTION
ATTENTION
Risk of environmental damage!
Heavily contaminated filters can have a negative impact on production processes.
Depending on the filtered-out materials, contaminated filters are therefore classi-
fied as hazardous waste and must be properly disposed of according to the pre-
vailing guidelines and laws.
ATTENTION
Risk of damage to the unit!
If dampers are abruptly shut during unit operation, the unit can be damaged
beyond repair as a result of negative pressure or overpressure.
Electrical hazard
Explosive atmosphere
Personal injury
Overhead loads
Risk of tipping
Rotating components!
Rotating storage materials
Toxic substances
Crushing of limbs
Sharp cutting edges
Inflammable materials
Safety and user instructions
CAIRpool
FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications9
2.6 Safety-conscious work procedures
Observe the following instructions when carrying out installation, adjustment or repair
jobs:
•Wear suitable protective clothing during work, such as protective footwear, gloves,
safety goggles, etc.
•Avoid flame sources, especially burning cigarettes. Open flame sources and
smoking in the proximity to the unit are prohibited. Filters and especially used filters
can easily catch fire. Leaking refrigerant can catch fire and emit noxious substances.
When working within range of mains voltage:
When working in explosive atmosphere:
Scalding
Hot surfaces
Cooling
Environmental damage
Damage to the unit
Electrocution through hazardous voltage will lead to death or serious injury!
•Disconnect the unit from the power supply and ensure the power cannot be
switched back on.
•Ensure the unit is voltage-free and isolated, earth and short circuit the unit, cover
or shield off neighboring live components.
Life-threatening danger of explosive atmosphere!
The unit must only be operated under the conditions specified on the unit identifi-
cation plate.
Explosion-risk conditions may originate inside and/or outside the unit during its
operation as well as during dowmtime period. For this reason, it is assumed that
explosion-risk conditions are present, even if the unit is deactivated.
•Avoid using pro-inflammatory substances such as electrical tool and electronic
devices.
•Smoking and open flames within direct proximity of the unit are prohibited.
•Before starting any jobs - ventilate the interior and/or exterior of the unit!
Safety and user instructions
CAIRpool
10 FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications
For all kinds of work:
Jobs on the unit can only be carried out if
– all poles for the power supply are disconnected
– the unit is secured to prevent inadvertent energising (also refer to "Electrical haz-
ard")
– all moving components - in particular - fan impeller, motor, rotary heat exchanger,
control and shut-off dampers – have come to a standstill: wait at least 5 minutes after
deactivating the unit
– the heat exchangers have cooled down to reach ambient temperature
Upon completion of jobs on the unit ensure that
– all protective devices are operating properly – for example, the fan safety devices
(door protection grille, contact guard) are locked
– no persons are present in danger areas.
Risk of personal injury!
No matter what kind of jobs are performed on the unit, there is always a risk of
cuts by thin sheet metal and heat exchanger fins. In particular, this aspect applies
when carrying out maintenance and cleaning work on the surfaces of heating and
cooling coils.
•Wear suitable protective clothing.
Before commissioning and after maintenance of the unit there is an increased
risk of injury:
•Ensure that no persons are locked inside the unit. Walkable surfaces of the
unit are equipped with emergency levers on the interior side of doors. Smaller
units must provide a protection against inadvertent locking by using padlocks
on the door stop.
An operating unit poses a risk of injury:
– Danger of impacts by opening doors arranged on the discharge side
– Danger of crushing resulting from negative pressure applied to doors on the suc-
tion side
– Danger resulting from rotating parts such as fans etc.
– Danger of hot surfaces and/or media
Units equipped with coolers with a refrigeration circuit pose additional risks.
•Observe all the safety notes contained in Chapter "Commissioning/maintenance
of integrated refrigerating systems" on page 80.
ATTENTION
Risk of damage to the unit!
If dampers are abruptly shut during unit operation, the unit can be damaged
beyond repair as a result of negative pressure or overpressure.
Safety and user instructions
CAIRpool
FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications11
2.6.1 Handling refrigerants (only for units with integrated refrigerating system)
According to DIN EN 378 Part 1 the R-134a and R-410A refrigerants belong to A1
group. Refer to the unit identification plate for data and charge volume of a particular
refrigerant.
Observe the usage details in accordance with EC regulation 842/2006.
Features of applicable refrigerant types:
– Non-combustible
– No direct toxic effect
– Colorless and odorless
– Heavier than air
– Contains fluorinated greenhouse gases as defined by the Kyoto protocol
– Ozone-depleting potential OPD: 0
– Greenhouse potential GWP: R-134a: 1300, R-410A: 1980
– Water hazard class WGK 1, with a slight risk to water
•Wear appropriate clothes when performing jobs with refrigerants and in the proximity
to a refrigeration circuit, e.g.
– Sealing protective goggles
– PVA or leather gloves
– Protective clothes for entire body
– If necessary, an autonomous breathing apparatus
First aid First aid measures directly after or during contact with refrigerants:
– Ensure your own protection against leaking refrigerant.
– Under all circumstances - call a doctor or and/an ambulance.
– Remove clothes contaminated by the refrigerant.
Inhalation Additional measures after inhalation of refrigerants:
– Take the injured person to a well-ventilated location.
– Ensure that the injured person is in a stable lateral position.
– Consumption of food and beverages must be avoided.
– If the injured person collapses or loses consciousness – perform mouth-to-mouth
respiration.
Skin contact Additional measures after skin contact with refrigerants:
– Rinse the affected body parts using lukewarm water for at least 15 min.
Eye contact Additional measures after eye contact with refrigerants:
– Do not rub your eyes.
– Remove contact lenses if you have any.
– Rinse your eyes with lots of water.
2.7 Proper use
The CAIRpool units are only intended for handling air and performing the following
jobs:
– filtering normally polluted air
– air heating and/or cooling
– humidifying and/or dehumidifying of air
– heat rejection or heat recovery
– filtering and treatment of air with a high moisture content (special models, swimming
pool or damp rooms for example showers and changing rooms)
– or combination of the above-mentioned functions.
Proper use also includes observance of the operation manual and instructions from the
manufacturer of the individual components, as well as the inspection and maintenance
intervals stipulated by FläktGroup.
Safety and user instructions
CAIRpool
12 FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications
Improper use Any use other than that described above is considered improper. If necessary, check
if your units are suitable for your intended purpose and application. The manufacturer/
supplier is not liable for any damages arising from improper use. The user alone bears
the risk.
Misuse particularly includes:
– Conveying any other gases except air
– Conveying steam or water
– Coarse filtering and/or filtering any other media except air
– Chopping up or reducing size of materials
The unit is not suitable for handling abrasive media.
It is not allowed to operate CAIRpool units:
– in explosion-risk areas, unless units are certified for use in these relevant areas (air
handling units meeting special explosion-protection requirements in accordance
with ATEX Guideline 94/9/EG)
– in rooms with conductive dust
– in rooms with strong electromagnetic fields
– in rooms with aggressive atmosphere that may attack plastics or cause corrosion
(especially in atmosphere where zinc is particularly susceptible to corrosion).
–CAIRpool units must not be accessible to the general public.
2.8 Safety devices
Depending on the unit equipment, the following components are secured:
– Door-stop device prepared for securing with an on-site padlock
– Switch cabinet with the possibility to lock the main switch against unintentional
activation on-site
– The panels and doors with lockable handles
– Fan chambers are secured by door protection grilles
Ensure by others on site that the contact protection for intake and discharge fittings is
provided.
2.9 Modifications and changes
Changes, alterations or modifications of the unit are not allowed. Tampering with the
unit or its misapplication will invalidate the CE conformity and void warranty.
If delivered units are disassembled by others on-site, the factory warranty is rendered
invalid. In this case professional services by FläktGroup should be arranged in
advance.
Safety and user instructions
CAIRpool
FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications13
2.10 Spare parts
Only original FläktGroup spare parts are allowed, since FläktGroup is not liable if third-
party spare parts are used.
2.11 Disposal
Equipment, operating supply materials, components and filters must be disposed of
according to the material type in a safe and environmentally friendly manner.
2.12 Selection and qualification of personnel
Ensure that every person working on the unit has read and understood entire operation
manual. Please read this document fully before commencing any work, and not while
performing a task.
All jobs must only be carried out by qualified licensed staff or other individuals with
proper professional training and experience in the following areas:
– Occupational health and safety regulations
– Accident prevention regulations
– Directives and recognized codes of practice
All jobs with the refrigeration circuit shall be performed only by certified and licensed
staff in accordance with the valid EG Regulation 842/2006 Article 5, EG Regulation
303/2008 Article 4 and 5 as well as "Ordinance on climate protection against changes
caused by release of certain fluorinated greenhouse gases" Article 5, passed by the
German parliament.
All skilled staff must be able to assess the entrusted work and must be able to recog-
nize and avoid all associated dangers.
Technical description
CAIRpool
14 FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications
3 Technical description
3.1 Performance scope
CAIRpool units are used for energy-efficient air dehumidification in swimming pools
and humid rooms. Due to their modular design, units can be configured individually to
meet particular air-handling requirements and specifications. The transported air can
be filtered, heated, cooled and dehumidified, depending on the application for each
case. The aim is to meet the customer specifications concerning required air volume
and conditions.
CAIRpool units are used at a central point for comfort air conditioning on commercial
and industrial premises for the transportation and treatment of “normal” air (according
to VDI 2089).
A range of unit components is available for energy-saving purposes: plate-type heat
exchangers, liquid-coupled heat exchangers and heat pumps with a heat recuperation
function.
Units are performed in different sizes and have various capacities. Depending on the
application for each case, CAIRpool units are designed for horizontal air flow and are
arranged as double-deck and side-by-side models. Units are only designed for indoor
installation. Units for outdoor installation need have special design.
Thanks to the modular design of the CAIRpool, units ship as complete assemblies or
sub-assemblies that can pass through the available on-site openings in the course of
installation. CAIRpool units are also suitable for the modernization and retrofitting of
existing buildings due to the number of available unit sizes and a unit ordering option
providing for delivery in small shipment units.
3.2 Modular unit configuration and operation of CAIRpool
Thanks to the modular design of the units and various applications for each case, a
customer can select a wide range of unit configurations.
Refer to the following examples demonstrating the basic unit design and its operating
principles.
3.2.1 PPI/PPR Units with double-recuperator and heat pump
The CAIRpool PPI/PPR is designed for various kinds of High Performance private and
public swimming pools. The series can be supplied with air volume capacity between
750 up to 36000 m³/h. The unit's function is to dehumidify and heat air in swimming
pools in mixed air mode.
Together with a heat pump this unit type is additionally equipped with an efficient heat
recovery system using a two stage recuperator. The unit is delivered with a DDC con-
trols which regulates all functions of the system on a fully automated basis.
Fig. 3-1: CAIRpool PPI/PPR
ETA
SUP
EHA
ODA
Technical description
CAIRpool
FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications15
The units dehumidify through a 24 h fresh air regulation. The accumulation of odors or
toxic gasous pollutants in form of trihalogenmethanes, chloramines or other corrosion-
promoting substances is reduced continuously. According to the required dehumidifi-
cation demand, larger or smaller quantities of outdoor air are used. The regulation is
performed continuously within range of 0-100%. To ensure this, a highly sensitive
humidity sensor controls the extract-air humidity of the swimming pool in the extract-
air fan chamber. Furthermore, the fully automated DDC control sets the required out-
door-air rate for the dehumidification. The outdoor air is pre-warmed via the recupera-
tor. The compressor unit operates as a heat pump and ensures the residual heat at the
default setpoint temperature. The downstream heater bank is regulated at low outdoor-
air temperatures or in case of heating up.
In the pool mode outside air and extract air dampers are open to ensure a pre-set min-
imum rate of outside air for hygienic reasons according to VDI 2089 to at least 30%.
Depending on the swimming pool humidity requirement the outside/extract air rate is
regulated automatically.
Using an optimal pool or fresh-water condenser a certain amount of excess energy
produced by the heat pump can be fed back into the pool water or a tank.
In the event of overheated swimming pool the heat pump is reduced and the supply air
bypass damper ensures cool air in the swimming pool. The bypass damper is contin-
uously opened to divert the heat recovery facility depending on requirements.
The PPR units are equipped with a reversible refrigeration circuit. Therefore, the swim-
ming pool temperature can be kept constant during the summer time and high external
loads according to the setting.
For both versions, the function of the heat pump depends on the outdoor-air rate. The
technical characteristics determine the running time and function of the compressor.
The compressor is regulated via frequency inverter and is operated via DDC in the pos-
sible working area on a fully automatic basis.
3.2.2 PPX units with double-recuperator
The CAIRpool PPX is designed for various kinds of High Performance private and pub-
lic swimming pools. The series can be supplied with air volume capacity between 750
up to 36000 m³/h. The unit's function is to dehumidify and heat air in swimming pools
in mixed air mode.
The heat recovery is performed via a highly-efficient two stage recuperator. It can be
delivered with/without DDC controls. When using DDC the controller regulates all func-
tions of the system on a fully automatic basis.
Fig. 3-2: CAIRpool PPX
The units dehumidify through a 24 h fresh air regulation. The accumulation of odors or
toxic gasous pollutants in form of trihalogenmethanes, chloramines or other corrosion-
promoting substances is reduced continuously. According to the required dehumidifi-
cation demand, larger or smaller quantities of outdoor air are used. The regulation is
performed continuously within range of 0-100%. To ensure this, a highly sensitive
humidity sensor controls the extract-air humidity of the swimming pool in the extract-
ETA
SUP
EHA
ODA
Technical description
CAIRpool
16 FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications
air fan chamber. Furthermore, the fully automated DDC control sets the required out-
door-air rate for the dehumidification. The outdoor air is pre-warmed via the recupera-
tor. The downstream heater bank is regulated for the remaining temperature control.
In the pool mode outside air and extract air dampers are open to ensure a pre-set min-
imum rate of outside air for hygienic reasons according to VDI2089 to at least 30%.
Depending on the swimming pool humidity requirement the outside/extract air rate is
regulated automatically.
In the event of overheated swimming pool the recuperator block is diverted and fresh
outdoor air is conveyed into the swimming pool via the supply air bypass damper. The
bypass damper is continuously opened to divert the heat recovery facility depending
on requirements.
3.3 Technical specifications
Refer to the order-related documentation for the specific configuration of your CAIR-
pool unit (unit drawing with dimensions and technical data).
3.3.1 Operating limits and range of application
3.3.2 Ambient conditions
Outdoor air from -25 °C to +40 °C
Air humidity depending on temperature max. 18 g/kg of dry air
Max. operating pressure
and temperature Heating/cooling coil 16 bar / 90 °C
Minimum operating
temperature Heating/cooling coil 6 °C
Notice on extreme
conditions! In addition to the air temperature/air humidity of the transported medium, the tempera-
ture/humidity of the ambient air is also critical. Environmental factors such as proximity
to sea or ocean must be taken into account when selecting material quality.
Different ambient conditions apply for integrated refrigerating unit.
Notice!
•Please carefully observe the unit type plate and the operation manuals for the
supplied accessories.
•Please refer to the enclosed documentation for the operating limits of special
built-in components.
•In frost-risk cases, use antifreeze agents for heating and cooling media.
•Operating limits for CAIRpool special/customized units are available on request.
Note on extreme conditions!
In addition to the air temperature/air humidity of the transported medium, the tem-
perature/humidity of the ambient air is also critical.
•Observe the condensation limits.
ATTENTION
Damage to the unit!
The switch box with control display, frequency inverter with control display and
other temperature-sensitive instruments are designed for indoor installation in
frost-free conditions.
Technical description
CAIRpool
FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications17
3.3.3 Permitted storage conditions / permitted air condition for uninstalled units
Air temperature 5 °C to 50 °C
Air humidity Store units in a dry, non-condensing atmosphere
3.3.4 Supply voltage
The required supply voltage is specified in the order-related documentation, e.g. 3
phases 400 V (50 Hz) + N + PE.
3.3.5 Condensation limits
Please pay due attention to condensation limits!
The following diagrams illustrate condensation limits depending on temperature and
relative humidity at the installation site for CAIRpool series.
The diagrams are based on normal air values and are calculated using a model box.
The given values are approximate figures and can not be used as a guarantee for
avoiding condensation. Depending on different casing components, deviations are
possible.
Read example:
With ambient conditions of 27 °C and 60 % relative humidity, air temperature in unit
may amount to -1 °C without formation of condensate.
Air temperature on unit external side in °C
Air temperature on unit internal side in °C
Relative humidity on unit external side in %
Technical description
CAIRpool
18 FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications
CAIRpool SX M
= partial
thermally separated
Condensation diagram for kb-value: 0.62
Air temperature on unit external side in °C
Air temperature on unit internal side in °C
Relative humidity on unit external side in %
Technical description
CAIRpool
FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications19
3.4 Requirements of ErP Directive 2016/2281
The values presented in the tables 2-17 and 2-18 are provided to ensure the implemen-
tation of the EU Directive 2009/125/EG. This Directive sets the framework for the
requirements to the environmentally-friendly design of energy-related products such
as air heaters, air coolers, units for air cooling in industrial processes with high operat-
ing temperature and fan coil units.
CAIRpool units are designed for the dehumidification of swimming halls by using outside air. At outdoor temperatures [Tj] shown above, the amount
of outdoor air is 30% of the supply air flow Units operate under operating conditions of return air temperature of 30°C, therefore a defrost mode is
not necessary
CAIRpool AHU with heat pump
and heat recovery
AHU with heat pump
and heat recovery
AHU with heat pump
and heat recovery
Model PPI/PPR: 015/025 035 043
Indoor heat exchanger: Air Air Air
Supplementary heater As an option As an option As an option
Type: Compressor driven vapour
compression
Compressor driven vapour
compression
Compressor driven vapour
compression
Compressor drive: Electric motor Electric motor Electric motor
Rated heating capacity, total (Prated,h,tot) in kW 8,9 12,6 15,9
Rated heating capacity, compressor,
(Prated,h,compr) in kW 1,9 2,6 3,9
Seasonal space heating energy efficiency, total
(Ks,h.tot) in % 399 519 554
Annual space heating energy efficiency, total
(Ks,h.compr) in % 85 109 137
Outdoor temperature (Tj)Heating
capacity (kW) COP Heating
capacity (kW) COP Heating
capacity (kW) COP
Total
Compressor
Total
Compressor
Total
Compressor
Total
Compressor
Total
Compressor
Total
Compressor
-7°C 6.7 1.4 25.7 5.5 10.0 2.0 31.0 6.2 12.0 3.0 23.8 6.0
+2°C 4.5 1.0 26.6 5.9 6.4 1.4 30.2 6.7 8.1 2.1 27.0 7.0
+7°C 3.4 0.8 27.2 6.1 5.0 1.0 32.9 6.8 6.0 1.5 29.0 7.3
+12°C 2.2 0.5 30.2 6.3 2.6 0.6 30.3 7.3 3.9 0.9 31.6 7.4
-15°C Bivalent temperature 8.9 1.9 29.5 6.2 12.6 2.6 31.9 6.6 15.9 3.9 23.7 5.8
Reduction factor (Cdc) NA (variable speed compressor) NA (variable speed compressor) NA (variable speed compressor)
Energy consumption
Off mode (POFF), Thermostat off mode (PTO) and
Standby mode (PSB)0,0725 0,0725 0,0725
Capacity control Variable speed Variable speed Variable speed
Air flow rate outdoor in m³/h 450/750 1050 1350
Sound power level From Lplus Selection Tool From Lplus Selection Tool From Lplus Selection Tool
Refrigerant R410A R410A R410A
GWP value 2088 2088 2088
Contact details
Technical description
CAIRpool
20 FläktGroup DC-2015-0103-GB R5-02-2020 • Subject to modifications
CAIRpool units are designed for the dehumidification of swimming halls by using outside air. At outdoor temperatures [Tj] shown above, the amount
of outdoor air is 30% of the supply air flow Units operate under operating conditions of return air temperature of 30°C, therefore a defrost mode is
not necessary
CAIRpool AHU with heat pump
and heat recovery
AHU with heat pump
and heat recovery
AHU with heat pump
and heat recovery
Model PPI/PPR: 053 065 090
Indoor heat exchanger: Air Air Air
Supplementary heater As an option As an option As an option
Type: Compressor driven vapour
compression
Compressor driven vapour
compression
Compressor driven vapour
compression
Compressor drive: Electric motor Electric motor Electric motor
Rated heating capacity, total (Prated,h,tot) in kW 18,9 23,1 32,3
Rated heating capacity, compressor,
(Prated,h,compr) in kW 3,9 4,5 7,1
Seasonal space heating energy efficiency, total
(Ks,h.tot) in % 589 694 737
Annual space heating energy efficiency, total
(Ks,h.compr) in % 125 137 172
Outdoor temperature (Tj)Heating
capacity (kW) COP Heating
capacity (kW) COP Heating
capacity (kW) COP
Total
Compressor
Total
Compressor
Total
Compressor
Total
Compressor
Total
Compressor
Total
Compressor
-7°C 15.0 3.0 23.3 4.7 17.5 3.4 25.4 4.9 24.5 5.6 21.4 4.9
+2°C 10.1 2.1 28.2 5.8 12.3 2.5 30.3 6.2 16.7 4.1 27.5 6.8
+7°C 6.6 1.6 26.2 6.3 8.9 1.8 31.8 6.5 11.9 2.9 29.5 7.1
+12°C 4.0 1.0 26.2 6.4 5.6 1.1 34.5 7.0 7.1 1.7 32.9 8.0
-15°C Bivalent temperature 18.9 3.9 21.4 4.4 23.1 4.5 23.2 4.5 32.3 7.1 20.3 4.5
Reduction factor (Cdc) NA (variable speed compressor) NA (variable speed compressor) NA (variable speed compressor)
Energy consumption
Off mode (POFF), Thermostat off mode (PTO) and
standby mode (PSB)0,0725 0,0725 0,0725
Capacity control Variable speed Variable speed Variable speed
Air flow rate outdoor in m³/h 1590 1950 2700
Sound power level From Lplus Selection Tool From Lplus Selection Tool From Lplus Selection Tool
Refrigerant R410A R410A R410A
GWP value 2088 2088 2088
Contact details
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