Hitecsa Easy Mosaic Series Instruction manual

INSTALLATION, OPERATION & MAINTENANCE MANUAL
IOM_ACHIBA ei_17ei a 35ei_208024_200104_EN
SOLO FRIO
ACHIBAei
Heat pump
PACKAGED AIR-AIR –COMPACT HORIZONTAL INVERTER UNITS
Models: 17ei │ 22ei │ 27ei │ 35ei
Cooling capacities: from 17 kW to 33.3 kW
Heating capacities: from 18.9 kW to 36.9 kW

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IOM_ACHIBA ei_17ei a 35ei_208024_200104_EN
ACHIBAei
AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
Thank you for trusting the Hitecsa Products. Our company has been offering the market an extended range of specialized units for
air conditioning and cooling installations for over 35 years. Our approach is based on efficiency, flexibility and on practical solutions.
This has been the hallmark of our product catalogue.
The versatility of our factory allows us to deliver solutions that can meet any requirement and we endeavour solving any problem
that may arise in designing and implementing air conditioning installations.
From all of us at Hiplus Aire Acondicionado, once again, thank you very much.

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IOM_ACHIBA ei_17ei a 35ei_208024_200104_EN
ACHIBAei
AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
ACHIBAei - MOSAIC easy
INDEX
INTRODUCTION ................................................................................................................4
REGULATIONS AND CERTIFICATIONS ................................................................................5
SAFETY PRECAUTIONS ......................................................................................................6
TECHNICAL SPECIFICATIONS .............................................................................................7
DIMENSIONS.....................................................................................................................9
MODELS 17ei –22ei ................................................................................................... 9
MODEL 27ei ................................................................................................................ 9
MODEL 35i................................................................................................................ 10
DISTRIBUTION OF WEIGHT (KG) ...................................................................................... 10
REFRIGERATION DIAGRAM .............................................................................................11
INSTALLATION ................................................................................................................12
INSPECTION AT RECEPTION............................................................................................ 12
RIGGING ......................................................................................................................... 12
STORAGE ........................................................................................................................ 12
INSTALLATION SITE ........................................................................................................ 12
SERVICE AREA (MM) ........................................................................................................ 13
UNIT SETTLEMENT (KG)................................................................................................... 13
WATER DRAIN ................................................................................................................ 13
AIR DUCTS ...................................................................................................................... 13
ELECTRICAL INSTALLATION ............................................................................................ 14
ELECTRICAL DATA........................................................................................................... 14
THERMOSTAT CONNECTION .......................................................................................... 15
OPERATION ....................................................................................................................16
BEFORE START-UP .......................................................................................................... 16
START-UP ....................................................................................................................... 17
OPERATION LIMITS......................................................................................................... 17
INDOOR FAN TRANSMISSION ADJUSTMENT.................................................................. 18
MAINTENANCE ...............................................................................................................19
REFRIGERANT CHARGE................................................................................................... 19
COMPRESSOR LUBRICATION.......................................................................................... 19
CONSERVATION AND CLEANING .................................................................................... 20
REPAIRING OPERATIONS................................................................................................ 21
OPTIONS .........................................................................................................................22
APPENDIX: SAFETY DATA R410A .....................................................................................23

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IOM_ACHIBA ei_17ei a 35ei_208024_200104_EN
ACHIBAei
AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
INTRODUCTION
Purpose of this Manual
This manual and any other instructive document attached as refrigeration lines design, electrical
diagrams, etc. have been written to allow a correct installation, commissioning and maintenance of
the unit. Therefore it is essential to read the instructions with due attention.
Verify that all the necessary information for the correct installation of the system is included in the
manuals supplied with this unit and/or the rest of the indoor units, accessories, etc. Otherwise, the
manufacturer declines any responsibility for any damage to persons, animals or things, as a result of
improper use of the unit and/or failure to observe these instructions.
In case of different interpretations and/or errors the documentary priority will be: 1. Characteristics
plate of the unit, 2. IOM (this document), 3. EDM, technical catalogue, 4. UM user manuals.
Conservation of the Manual
This manual and the electric diagram of the unit must be retained and remain available to the operator for any further
consultation.
Updating the Data
The continuous improvement in design and performance to which we are committed gives us the right to modify the
specifications of our products without prior notice.
Electrical Supply
Check that the electrical network features are in accordance to data shown in the data nameplate of the
unit.
Local Safety Regulations
Observe and analyse all possible causes of accidents that may arise in the place or places of installation of the units,
check means and tools to use,etc. It is not possible to anticipate all the potential circumstances of danger in this manual.
Respect the valid local security standards during installation.
Principles of Security on Installation
The unit is designed and built in a way that does not pose a risk to the health and safety of people. Appropriate solutions
for the project have been adopted to eliminate the possible causes of risk in the installation.
Packaging and Replacement of Equipment
The material of the package (plastic bags, insulating materials, nails, etc.) is a potential source of danger.
Consequently, it should be kept out of the reach of children and properly recycled according to the valid
local safety regulations.
This product should not be mixed with household waste at the end of its life. Due to the refrigerant, oil
and other components contained in this product, it must be dismantled by professional installers, all waste
should be sent, according to its nature to recycling, composting or treatment plants, or to an authorized
waste management agency in accordance with the current local legislations.
Utilization
The unit will only be used for the purpose it has been designed. Any other use does not imply any kind of liability or
responsibility from the manufacturer.
Incorrect Operation
In case of breakdown or operation faults, turn the unit off.

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ACHIBAei
AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
INTRODUCTION
Periodic Inspections and Maintenance
Carry out periodic inspections to detect possible damaged or broken parts. If these parts arenot repaired
it could cause damage to people or material. Before executing any maintenance operation, switch the
unit power supply off.
Make sure to leave the maintenance areas open. If these areas have to be invaded by the construction
of air supply and/or lateral return ducts, verify that the design of the ducts allows the access to the fans
and the replacement of the filters.
All operations shall be carried out in accordance with the local safety regulations.
Repairing Operations
The reparations shall always and exclusively be completed by trained personal authorized by the
manufacturer using original spares. The safety devices of the unit could be affected due to the failure to
comply with these warnings.
Modifications
The manufacturer will not respond to the warranty and to the possible damages of the unit in case of electrical and/or
mechanical modifications. The unauthorized manipulation, reparation or modification of the unit will automatically
invalidate the warranty.
Refrigerant
This product is hermetically sealed and contains R-410A which is a HFC fluorinated greenhouse gas.
REGULATIONS AND CERTIFICATIONS
ISO 9001 CERTIFICATION: HIPLUS AIRE ACONDICIONADO S.L., by endeavouring to always gain the maximum
satisfaction from their customers, obtained the ISO 9001: Quality System for its design and production activities. That
result shows our continuous determination to improve quality and the reliability of all our products. Our commercial
activities, design, raw materials, production processes and after-sales service represent the means to reach our goal.
CE MARKING: Our products are CE marked according to the essential requirements of the applicable EC directives and
their last modifications and comply with the national legislation of each country.

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ACHIBAei
AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
SAFETY PRECAUTIONS
DANGER
• In case of folding electrical panels, before folding them up in order to access to the interior of the machine, it is
MANDATORY to disconnect the power supply hose from the electrical voltage, THE LINE MUST ALWAYS BE FREE
OF VOLTAGE for this operation.
• Do not touch or adjust the safety devices inside any unit of the system. For repairs use only original spare parts and
mount them properly in the same position where old parts were placed.
• The installation and maintenance of air conditioning equipment may be dangerous because the system is under
pressure, some of its elements have high temperatures and include electrical components.
• Do not install the unit in an explosive atmosphere.
Only qualified and trained service staff (technical service) is allowed to complete the installation, commissioning
and carry out maintenance works. Unqualified personnel is authorised to complete basic tasks only such as
cleaning and replacement of filters, etc.
Prevent access to children so that they cannot play with the appliances.
For every visit, all precautions must be taken into account: those recommended in the installation, operation
and maintenance instructions, as well as the ones indicated in labels of the unit. Do not forget to strictly follow
any other safety precautions.
DO NOT introduce objects into the air inlets or outlets that can be drawn into the fan, people, etc.
Use safety glasses, work gloves and any other necessary safety accessory.
For brazing operations use a quenching cloth and make sure a fire extinguisher is available by your side.
This product contains fluorinated greenhouse gases, its leakage can cause displacement of air and cause
insufficient oxygen to breath.
The decomposition of fluorinated gases when being burned due to e.g. brazing operations, may cause the
existence of highly toxic and corrosive gases.
All safety recommendations must be followed carefully.
ATTENTION!
Before starting any installation, service or maintenance operation, turn the main power switch off in order
to avoid electrical shock that might cause personal damages.
WARNING!

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ACHIBAei
AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
TECHNICAL SPECIFICATIONS
MOSAIC
range
17ei
22ei
27ei
35ei
CAPACITIES
COOLING CAPACITY
(1) (Conditions Outdoor temp.: 35°C - Dry temp./Indoor Humid
Temp.: 27/19°C)
Cooling Capacity (20rps - 120rps)
KW
3.9 - 17.0
5.0 - 21.8
5.8 - 25.2
8.9 - 33.3
Absorbed power (20 - 120rps)
KW
1.3 - 8.3
1.7 - 11.96
2.05 - 16.21
2.5 - 20.7
EER (60rps)
2.77
2.61
2.45
2.48
SEER
3.76
3.57
3.37
3.68
ηs cooling
%
147.2
139.8
131.8
144.3
HEATING CAPACITY
(2) Conditions Dry temp./Outdoor Humid temp.: 7/6°C - Indoor Dry
Temp.: 20°C
Heating capacity (20 - 120rps)
KW
3.6 - 18.9
4.6 - 23.6
5.1 - 26.7
8.4 - 36.9
Absorbed power (20 - 120rps)
KW
1 - 5.8
1.3 - 9.3
1.5 - 11.4
2.0 - 17.2
COP (60rps)
2.95
2.78
2.53
3.23
SCOP
2.98
2.97
2.97
3.04
ηs heating
%
116.1
115.8
115.7
118.7
Refrigerant circuit
REFRIGERANT
Refrigerant type
R-410A
GWP (3)
2088
Number of circuits
1
Refrigerant charge
KG
6.3
6.3
9.4
10.5
Environmental impact
Tn
(CO2)
13.2
13.2
19.6
21.9
COMPRESSOR
Type
Scroll - BLDCM
Number of compressors
1
Number of power stages
VARIABLE
Oil type
PVE - FV50S
Oil volume
L
1.4
1.7
2.3
2.3
Crankcase heater
W
38
38
38
38
(1). Calculated according to the UNE-EN-14511 standard, for indoor temperature conditions of 27ºC B.S. / 19ºC B.H. and 35ºC
outdoor temperature. Frequency of the compressor as stated above.
Nominal consumption in the cooling mode of the entire equipment (compressors and fans) in nominal conditions, calculated
according to the EN-14511 standard.
The seasonal coefficient for the cooling season (SEER) has been calculated according to the EN-14825 standard.
The seasonal area cooling performance ratio (ηs,c) has been calculated according to the (EU) 2281 regulation.
(2). Nominal heating capacity calculated according to the UNE-EN-14511 standard for indoor temperature levels lower than 20ºC
and outdoor temperature levels of 7ºC B.S. / 6ºC BH. Frequency of the compressor as stated above.
Nominal consumption in the heating mode of the entire equipment (compressors and fans) in nominal conditions, calculated
according to the EN-14511 standard.
The seasonal coefficient for the heating season (SEER) has been calculated according to the EN-14825 standard.
The seasonal area heating performance ratio (ηs,c) has been calculated according to the (EU) 2281 regulation.
(3). GWP: Global warming potential (climatic) of 1 kg of greenhouse gas relative to 1 kg of CO2, calculated over a
period of 100 years.

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ACHIBAei
AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
TECHNICAL SPECIFICATIONS
MOSAIC
range
17ei
22ei
27ei
35ei
OUTDOOR FAN
Type
Centrifugal
Model
12/12 DD
12/12 SS
12/12 SS
15/15 SS
Quantity
1
Motor
2 speed, pulley transmission
Nominal power
kW
0.4 / 1.1
0.4 / 1.6
0.55 / 2.2
1.8 / 7.2
Nominal current
A
1.69 / 2.20
1.69 / 3.80
2.00 / 4.84
4.64 / 14.40
Max. speed
r.p.m.
700/1420
700/1420
700/1430
725/1440
Air flow (max.)
m³/ h
5600
6200
7500
10500
Air flow (min)
m³/ h
2800
3100
3750
5250
Static pressure (Nom.)
Pa
50
60
INDOOR FAN
Type
Centrifugal
Model
12/9 SS
12/9 SS
12/12 SS
15/15 SS
Quantity
1
Motor
2 speed, pulley transmission
Nominal power
kW
0.4 / 1.1
0.4 / 1.6
0.4 / 1.6
0.4 / 1.6
Nominal current
A
1.69 / 2.20
1.69 / 3.80
1.69 / 3.80
1.69 / 3.80
Max. speed
r.p.m.
700/1420
700/1420
700/1420
700/1420
Nominal air flow
m³/ h
3600
4600
5500
6500
Min. flow
m³/ h
1800
2300
2750
3250
Nominal available pressure
Pa
100
120
120
150
ELECTRICAL SPECIFICATIONS
Power supply
V / ~ / Hz
400V / 3F~+N
Max. current
A
18.4
23.5
28.7
48.8
Start current (CA)
A
Soft start
DIMENSIONS AND WEIGHT
Length
mm
1810
1810
2060
2305
Width
mm
1775
1775
1775
2205
Height
mm
640
640
675
750
Net weight
kg
460
510
590
760

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AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
DIMENSIONS
MODELS 17ei –22ei
MODEL 27ei
Air filter
Outlet profile 25 mm
Male 3/4’’ indoor drain outlet
Support point diameter Ø15 mm
Main switch
Standard
Power connexion inlet
Electrical panel
Option
Male 3/4’’ outdoor drain outlet
1
2
3
4
5
6
Indoor side
Indoor side
Outdoor side
Outdoor side

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AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
DIMENSIONS
MODEL 35i
DISTRIBUTION OF WEIGHT (kg)
Air filter
Outlet profile 25 mm
Male 3/4’’ indoor drain outlet
Support point diameter Ø15 mm
Main switch
Standard
Power connexion inlet
Electrical panel
Option
Male 3/4’’ outdoor drain outlet
MODEL
1
2
3
4
TOTAL
17ei
138
120
92
110
460
22ei
153
133
102
122
510
27ei
177
153
118
142
590
35ei
228
198
152
182
760
1
2
3
4
5
6
Indoor side
Outdoor side
Indoor side
Outdoor side

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AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
REFRIGERATION DIAGRAM
1. Compressor
2. 4-way valve
3. Electronical expansion valve
4. Check valve
5. Filter
6. Liquid tank
8. Suction accumulator
9. Outdoor coil
10. Outdoor fan
11. Indoor coil
12. Indoor fan
TD Discharge temperature
HP. High pressure switch
PT. Pressure transductor
TS. Suction temperature
TI. Indoor air temperature
TE. Outdoor air temperature
VS. Security valve

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AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
INSTALLATION
INSPECTION AT RECEPTION
It is advisable to examine the equipment carefully upon reception.
Check that the equipment has not been damaged during transport and that it is complete with all the parts
specified in the order and/or the options stated in the order. If this is not the case please contact the transport
company immediately (within 48h).
Verify the correct voltage stated on the nameplate and make sure it is in accordance with the local power supply.
In case of any flaw or anomaly detected, please contact HITECSA.
RIGGING
Before moving the unit, make sure that all panels are fixed properly.
Raise and put the equipment down carefully.
Do not tilt the unit more than 15 degrees during transportation (Fig. 2).
Always transport the unit in its original packaging to the place of installation.
All units come with a particular rigging diagram of that model similar to the one shown below. Be sure to hoist
the machine through the points indicated in the diagram.
Make sure that the unit is balanced, stable and without any deformations during lifting operations.
STORAGE
If the equipment is going to be stored before the installation, please follow the following instructions in order to avoid
damages, corrosion or deterioration:
Move it carefully.
Do not place the machine in places exposed to ambient temperatures above 50ºC and preferably keep the unit away
from direct sunlight.
Avoid placing the unit with plastic wrapping protection under the sun as the pressure of the circuits could reach values
that could lead to the activation of the safety valves.
Moreover, with decreasing temperatures water condensation may occur inside the machine and the plastic wrap.
Avoid placing other objects on top of the unit (unless this is done within the limits of the overlap planes indicated on
the packaging, etc. Follow these indications).
Avoid prolonged storage before installation, water penetration, dust and objects in general due to invasion or
biological, meteorological and/or human impacts.
Minimum storage temperature: -10ºC
Maximum relative humidity: 90%.
INSTALLATION SITE
Read and comply with the local rules and regulations applying to the installation of air conditioning systems.
Choose a clean place without dust nor debris.
Respect the allocated service area prepared for the equipment.
The unit can be installed on the ground or hung from the ceiling.
Verify that the ground or the structure prepared for the equipment is strong enough to support its weight during
operation.
Install shock absorbers throughout the installation to prevent the transmission of noise and vibration.
Check that the direction of the sound level will not annoy anybody.
The standard version of this equipment has been designed for installation inside a building (with a roof). Please
check with Hitecsa if you plan to expose the machine to weather conditions.

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AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
INSTALLATION
SERVICE AREA (mm)
1000 mm around the equipment
UNIT SETTLEMENT (kg)
Make sure that the equipment is levelled correctly.
The bed frame shall be strong enough to support the unit weight.
Make sure that after settlement the unit drain is working properly.
WATER DRAIN
All the drain devices are prepared with a male 3/4” gas connection (ISO 228-1, BSPP).
The unit is equipped as a standard feature with a condensate drain tray to avoid an excessive water accumulation
in the indoor side and the outdoor side.
The condensate drain pipe diameter shall be equal or larger than the unit connection depending on its length and
inclination.
If the drain line is exposed to air temperatures lower than 0 degrees, it is necessary to cover it with thermal
insulation material or to use electrical heating devices to prevent water from freezing that would entail tube
damage.
The drainage line shall be inclined by 2% minimum for proper water evacuation.
It is convenient to install a drain trap with proper dimensions (see diagram) or a
draining system with a condensate pump to avoid excessive water accumulation in
the indoor side and the outdoor side.
AIR DUCTS
The air duct dimensions will be determined according to the air flow and the available static pressure of the units.
They shall be designed by qualified technicians. An incorrect design may reduce the unit’s performance and may
be a hindrance when access to the unit for maintenance operations is needed (in particular where there is only one
possible access).
Use ducts made of non-inflammable material in order to avoid any risk of fire as a consequence of the deflagration
of gases. It is advisable to use insulated metal ducts.
Use flexible conduits to connect air ducts to the unit so as to avoid vibration and noise transmission.
Indoor side
Outdoor side

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AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
INSTALLATION
ELECTRICAL INSTALLATION
The unit power supply shall be within 10% of volts indicated on the unit nameplate. Damage caused by the start-up
of the unit with an incorrect voltage line will not be covered by the Hitecsa’s warranty.
Always refer to the unit wiring diagram when completing electrical connections.
The electrical wiring connections and the line protection devices must be installed by the installer according to the
current local laws.
The interconnecting wires shall be protected in a tube or an electrical cable conduit, cable tray, etc.
ELECTRICAL DATA
The unit is equipped with frequency inverters. A 300mA differential switch or a superimmunized switch shall be installed
to avoid unprogrammed discharges.
MOSAIC range
17ei
22ei
27ei
35ei
ACHIBA HE
ELECTRICAL DATA
Power supply (50Hz)
V/Phases~
400V / 3F~+N
Max. absorbed current
A
23,7
27,2
33,9
48.8
Starting current
A
Soft start
1. Main power supply 400/3/50 + neutral + ground connection
2. Main switch
3. Remote TH-Tune control (Separate power and communication cables)
4. Room temperature probe
Par TRENZADO
Y APANTALLADO
ALIMENTACIÓN
220v AC
Turn the main power switch off before proceding to any operation.
WARNING!

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AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
INSTALLATION
THERMOSTAT CONNECTION
Connect the TH-Tune (Mini-pGD or pGD1 as options) to the control board through the medium of a communication
cable and a 230V power cable.
Models 17ei, 22ei, 27ei
Model 35ei
Th-TUNE connection:
-Two 230 VAC (L+N) power cables
-One twisted and shielded pair AWG 20/22 with a drain wire to GND.
Wall probe Connection:
NTC thermoresistance within a box. Connected with 2 copper wires between
0.5mm² and 1.5mm² thick (higher thickness if higher resistance) to the B5
analog input of the control board.
B5 and GND connectors.

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AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
OPERATION
BEFORE START-UP
The installer shall complete various control operations to make surethat the unit operation is correct whencommissioning
the unit for the first time. Start-up shall be supervised by an air conditioning qualified technician.
GENERAL INSTALLATION CHECKING
Control that there is space enough for operation, access to the electrical box and for maintenance.
Control that the unit is levelled properly.
Control that all the panels are fitted properly with screws.
Control the condition and position of the grilles, diffusers, air ducts, tarpaulins, etc…
Control that the air filters are clean and correctly fitted.
Control that the drainage is not blocked.
Electrical installation checking
Check that the electrical wiring diagram is available as it is an essential document to complete the connection
operations.
Check that all the electrical connections are tight.
Check the power supply voltage. The power supply to the unit must be within 10% of the voltage level stated on
the serial plate. In case of three-phases lines, make sure that the three phases are well balanced. Damages
caused by the start-up of the unit with an incorrect voltage line will not be covered by the Hitecsa’s warranty.
Check that the necessary line protection devices are installed and comply with the local valid legislation.
The unit is equipped with frequency converters. Check that the main switch is of minimum 300 mA or is a
superimmunized switch so as to avoid possible power cuts caused when it is activated.
Check that the thermostat is connected and power supplied properly.
Check the remote on/off connection.
Check the rotation direction of the fans.
Check that the electrical interconnecting cables are protected with a tube or a conduit.
Check that the crankcase heater for each compressor has been working for 24 hours before starting-up the
unit.
Refrigeration installation checking
Before opening the electrical box up and accessing inside the unit, it is COMPULSORYto keep the main power
supply cable disconnected / WITHOUT VOLTAGE.
Check that the unit is completely charged with refrigerant ____________kg.
Check that there is no oil/refrigerant leakage.
Split units:
Control the diameters of the suction lines: ______” and liquids: ______”.
Oil separator? Y/N _________.
Proper oil trap devices? Y/N___________.
Insulated refrigeration lines.

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UNIDADES AUTONOMAS AIRE-AIRE
COMPACTAS HORIZONTALES INVERTER
OPERATION
START-UP
Make sure you have access to measuring instruments with their up-to-date calibration certificates.
Thermometer, anemometer, voltmeter, hook-on meter, high and low manometer.
The person/people who will complete the measuring operations or the ones who will participate in the start-up
process must be qualified professionals with the valid certification according to the local regulation.
Please read all the security precaution guidelines.
Before using a hook-on meter make sure that the cable or the cables are connected properly. To disconnect a
cable by using force may damage the equipment and entail people injuries.
It is necessary to register the air inlet and outlet temperatures to the internal coil, the volts and amps of the
compressor and motor fan, as well as the suction and discharge pressure of each compressor.
Remember that it is necessary to clean the air filters after the first 4 hours of operation.
Complete at least 3 cooling cycle operations.
Indoor fan start-up.
-Do not approach the fan while it is rotating even at a very slow rotation speed!
¡Beware automatic restart!
The fan / motor may start and stop automatically for functional reasons.
After a power cut or a technical failure the fan will restart as soon as voltage is present again!
-ROTATION CAUSED BY AIR FLOW IN THE WRONG DIRECTION.
If you switch the fan on while it is rotating in the opposite direction the control will reduce the rotations until it
reaches the ‘0’ value (fan stoppage). Then, the control will make a restart in the correct rotation direction.
The higher the number of rotations in the wrong direction, the longer time the control will need to make the fan
stop. If the fan is rotating heavily in the wrong direction the control may not be able to start the fan in the correct
direction.
Do not switch the fan off and restart it again to slow it down!
OPERATION LIMITS
COOLING CYCLE
OUTDOOR air temperature
INDOOR air temperature
Dry
Humid
Dry
Humid
Nominal conditions
35ºC
-
27ºC
19ºC
Minimum
-10ºC
-
20ºC
15ºC
Maximum
50ºC
-
32ºC
23ºC
HEATING CYCLE
OUTDOOR air temperature
INDOOR air temperature
Dry
Humid
Dry
Humid
Nominal conditions
7ºC
6ºC
20ºC
-
Minimum
-12ºC
-13ºC
15ºC
-
Maximum
24ºC
18ºC
26ºC
-
These units can operate at a maximum altitude of 1500 m above sea level with a performance loss lower than 3%.
They have been designed to work with 100% of recycled air. An installation with 100% of outdoor air is prohibited.

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AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
OPERATION
INDOOR FAN TRANSMISSION ADJUSTMENT
Adjust transmission so that the indoor motor consumption reaches its normal value.
If consumption is below the nominal value it means that the unit air flow is too low.
-
How to change the fan speed:
1. Remove the belt. Move the motor along its track (or loosen the tensor set screw) in order to release it.
2. Loose the set screws of the motor pulley and turn the movable flange. Open or close depending on the needs
(Open: speed decreases).
3. Tighten set screws.
4. Place the belt in the pulley channel. The closure or opening of the pulley could void the size of the prior belt.
In this case, replace it for other belt of the same profile and with the appropriate length.
5. Tighten the belt by using a tensor screw or by sliding the motor, depending on the case.
1.
-Align fan and motor pulleys:
1. Loose the fan pulley set screws.
2. Slide the fan pulley along the shaft and align it with the motor by using a ruler in order to ensure that it is
parallel to the belt.
3. Tighten the fan pulley set screws.
- Adjust the belt tension:
1. Loose the motor’s mounting plate bolt and slide it.
2. The belt flexibility is calculated in millimetres by dividing S by 40.
1. Motor
2. Motor pulley
3. Transmission
belt
4. Fan pulley
5.
Tensor set screw
6. Set screw
7. Fixed flange
8. Movable flange
CORRECT
WRONG
WRONG
WRONG

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UNIDADES AUTONOMAS AIRE-AIRE
COMPACTAS HORIZONTALES INVERTER
MAINTENANCE
It is advisable to schedule maintenance visits every 1,000 operating hours, as well as at the end of summer. Please
keep an updated record of all maintenance operations and readings (maintenance sheet).
Repairing operations must be carried out by trained specialists only.
Wear safety shoes and gloves adapted to each operation!
Please observe the safety regulations and the worker’s protection rules for any maintenance and service operation
(EN 50 110, IEC 364).
In the event of leak any manipulation and/or recovery of refrigerant shall be completed by qualified and authorized
personnel in accordance with the valid regulation. Add the quantity of oil that has been lost.
REFRIGERANT CHARGE
Should it be necessary to add or recover refrigerant use a digital scale that is suitably reinforced and prepared to
withstand the handling of the refrigerant bottle.
Charge to be in the LIQUID state.
Introduction of R-410A refrigerant in the liquid state inside empty tubes produces temperatures below 0ºC until the
internal pressure reaches 7 bars.
Leaks should be repaired immediately.
Never overcharge the system.
Never use the compressor as a vacuum pump.
If leakage symptoms appear during operation proceed to a leak test.
A HCF detector is necessary in case of small leaks.
If a gas leak is detected proceed to removing and recuperating the entire refrigerant charge. Pressurize the system
with dry nitrogen. If no leak is detected proceed to vacuuming the system and refill with refrigerant.
Do not reintroduce the used refrigerant, send it to an authorized recycling plant.
COMPRESSOR LUBRICATION
R-410A refrigerant compressors use synthetic polyolester oil. Each compressor manufacturer has a specific oil for their
products.
The compressor or system should not remain open to atmosphere for more than 15 minutes.
Synthetic ester-type lubricants (POE, Polyol Ester) with a high solubility level with R-410A are used. These types of oil
are very hygroscopic and shall be handled with more care the conventional ones. Moreover, when these synthetic oils
are mixed with minerals (MO) or alkylbenzenes (AB), they deteriorate causing capillary blockage or failure in the
compressor.
DO NOT MIX THEM UNDER ANY CIRCUMSTANCES.
Before completing any service or maintenance operation, turn the main power switch off to avoid any
personal injuries. Lock it so that anybody else than a qualified technician can switch it on.
Never use oxygen to pressurize the system or purge lines for leak test. Oxygen reacts violently with oil
which may entail an explosion that could lead to damages, personal injury or event death.
Should it be necessary to complete brazing operation first of all proceed to filling the circuit with
dry nitrogen. Burning refrigerant produces toxic gas emissions.
WARNING!
WARNING!
WARNING!

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AIR-AIR PACKAGED UNITS
COMPACT HORIZONTAL INVERTER
MAINTENANCE
CONSERVATION AND CLEANING
Precaution!
Do not use aggressive cleaning products nor varnish solvents.
Avoid water penetration inside the motor or to the electronic components (e.g. through the direct contact with joints
or holes of the motor), observe the protection class (IP).
Electrical circuit: Make sure that all electrical connections –wires, contactors and terminals- are properly tight. Register
the readings of kW and amperes at each compressor and fan motor phase. Verify the starting current. Check the start
current. Check that all mechanical components, pressure switches and so on are working properly.
Refrigeration circuit: Check if there is any refrigerant leak, noises or vibration. Proceed to measuring temperatures
and/or pressures of components of the most important components of the system and register them on the
maintenance sheet (compressor discharge and suction, expansion valve, exchangers’ inlet and outlet, etc…)
Compressor: Check regularly the lubricant level, presence of vibrations or noise and motor insulation.
Drainage system: Verify the condition and the correct operation of the drainage tray and drain trap. It is necessary to
clean the condensate trays after the first day of operation. Then, clean them at least once a year. Take into account the
meteorological conditions, e.g. in areas where falling leaves or the flight of seeds may obstruct the drain trap, it will also
be necessary to clean them at mid and late spring and autumn. The dates are approximate and will depend on the
blooming, falling leaves, seeds, etc. of the plants of the zone or the human activity or any other cause.
Air filters: Clean the filters after the first operating hours to remove possible light materials such as pieces of paper or
polystyrene, etc. that may have been dragged through air circulation. Clean again every 3 months (or more often
depending on operation). The filters can be cleaned with soapy water. Then rinse them with clean water and let dry. If
necessary replace the filters before they are in poor conditions (refer to the current legislation, EN 779, UNE-EN
13053…).
Coils: At least once a year clean the condenser coils with water and detergent, then dry with air at low pressure. Never
clean with a wire brush, water and/or air at high pressure (max. 6 bar).
Fans: Check the direction of rotation of the fans, verify their carriers. Check the transmission elements and the operating
status.
Before handling the fan make sure that it is disconnected fromthe main power supply even though it is already stopped
and control that nobody may start it during the intervention.
-A regular inspection of the unit is required to avoid dirt accumulation in propellers, turbines, motors and grids that
could entail risks and significantly shorten their life. The frequency will depend on the working conditions.
-Keep the airways of the fan free –danger because of objects dropping out!
-Check the free flow of the condensation water through the evacuation openings is necessary (if there are any).
-During cleaning operations be very careful not to unbalance the propeller or the turbine.
-In case of incorrect cleaning operations no guarantee is assumed regarding corrosion formation / paint adhesion for
unpainted / painted fans.
-To avoid humidity accumulation in the motor the fan must be operated during at least 1 hour at 80 to 100% of its
maximum speed before cleaning!
-After the cleaning process the fan must be operated for 2 hours at 80 to 100% of maximum speed for drying
purposes!
-Check the fan regularly to detect possible mechanical vibrations (recommended every 6 months). Keep in mind the
limit values indicated on ISO 14694 and perform correction measures in case of exceeding them (e.g. posterior
balance by trained specialists).
-Check the impeller in particular weld-seams to detect possible cracks.
-Motors and fans do not need additional lubrication due to the use of “life-long lubrication” ball bearings. At the end of
the grease life period (30-40.000h approx.) the bearing shall be replaced. Please contact our Service Department in
that case as well as for any damage (e.g. to the coil or electronical parts).
-