Hitecsa ACHIA User manual

Model 301
Heating capacity: 5,2 kW
Cooling capacity: 7,2 kW
11.16 207464 Rev.106
Cooling only Cooling only
INSTALLATION, OPERATION AND MAINTENANCE
ACHIA ECHIA/CCHIA
AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
ACHIBA ECHIBA/CCHIBA
Cooling only Cooling only

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
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11.16 207464 Rev.106
Thank you for trusting in Hitecsa Products. Our company has been offering the market an extended range of specialized units for
air conditioning and cooling installations for over 30 years. Our approach is based on efficiency, adaptability, usability and practical
solutions. This has been the hallmark of our product catalogue.
The versatility of our factory allows us to contribute solutions, almost tailored to each project’s specifications, in search of a
solution to every problem that arises in design and implementation of air conditioning installations.
From all of us at Hiplus Aire Acondicionado, once again, thank you very much

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
ACHIA / ACHIBA
11.16 207464 Rev.106
INTRODUCTION....................................................................................... 04
SAFETY PRECAUTIONS ......................................................................... 05
RECEPTION.............................................................................................. 06
Inspection upon receipt........................................................................ 06
Rigging................................................................................................. 06
Storage ................................................................................................ 06
INSTALLATION LOCATION..................................................................... 07
Service area (mm) ............................................................................... 07
Weight distribution (kg) ........................................................................ 08
Unit settlement..................................................................................... 08
START UP................................................................................................. 09
Operation limits.................................................................................... 10
Electrical data ...................................................................................... 10
Drainage .............................................................................................. 11
Air ducts............................................................................................... 11
Compressor lubricant........................................................................... 11
TECHNICAL DATA................................................................................... 12
DIMENSIONS............................................................................................ 13
REFRIGERANT LINES............................................................................. 16
REFRIGERANT CHARGE ........................................................................ 19
MAINTENANCE........................................................................................ 20
APPENDIX: SAFETY DATA R410A......................................................... 21
INDEX

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
ACHIA / ACHIBA
11.16 207464 Rev.106
INTRODUCTION
The contents of this manual are designed to assure the correct installation, adjustment and
maintenance of the unit, therefore:
• Read the instructions with due care and attention.
• The appliance must be installed, tested and serviced by properly qualified staff licensed in accordance with the
established legislation.
• The manufacturer declines all liability and warranty coverage is automatically waived, if electrical and/or mechanical
modifications to the unit. Tampering and unauthorized repairs or modifications to the unit will automatically void the
warranty.
• Observe the safety regulations in force at the time of installation.
• Make sure that the characteristics of the mains network conform to the data on the serial number plate placed on the
unit.
• Keep this manual and the wiring diagram with care and make sure that they are available for consultation by the
operator whenever necessary.
• Packing materials (plastic wrappings, expanded polystyrene, etc) are potentially hazardous and must be kept out of
reach of children. Recycle packing materials in accordance with local legislation.
• The units must be used only for the purpose for which they are designed .The manufacturer bears no responsibility in
the case of applications other than the specified use.
• Disconnect the unit in the event of breakdowns or malfunctions.
• If repairs are necessary, use only HITECSA approved service centres and always insist on original spare parts. The
use of non-original parts and/or unauthorized service centres may result in unsafe operation of the unit.
Regulations and certifications
ISO 9001:2008 CERTIFICATION: HIPLUS AIRE ACONDICIONADO S.L., trying always to find the customer satisfaction,
has obtained the ISO 9001:2008 Quality System referred to its production activity. This will results in a continuous
determination to improve quality and reliability of all our products; commercial activities, design, raw materials, production
and after-sales service, are the means to reach our goal.
CE MARKING: Our machines have got the CE mark, in conformity with the essential requirements
of the applicable EC directives and their last modifications as well as with the national legislation of
each country.

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
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11.16 207464 Rev.106
SAFETY PRECAUTIONS
• Installation and maintenance of air conditioning equipment can be dangerous because the system is under
pressure, because some of its elements have high temperatures and include electrical components.
• Only qualified and trained service staff should install, commission and carry out maintenance works. Unqualified staff
should only carry out basic tasks such as cleaning and replacement of filters, etc.
• In every visit, all precautions should 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 codes.
• Use safety glasses, work gloves and any other safety accessory necessary.
• For brazing operations use a quenching cloth and have at close distance a fire extinguisher.
• When repairing the unit, use only original spare parts and install them properly in the same position where
old parts were placed.
• These units are designed to operate using 100% recycled air. For installations that use the support of ambient air,
please consult with our commercial department.
• This product contains flourine-based greenhouse gases.
• Do not install the unit in explosive atmosphere.
Before starting installation, service or maintenance, turn off the main power switch in
order to avoid electrical shock that may cause personal damages.

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
ACHIA / ACHIBA
11.16 207464 Rev.106
RECEPTION
INSPECTION UPON RECEIPT
• Units are delivered with special protective packing; therefore when it arrives, please inspect it carefully to check that no
damage has occurred during transport and that the unit has been supplied complete with all parts specified in the order.
If any damage is found, immediately file a claim with the transport company. (first 48h)
• Verify the correct voltage of the nameplate and make sure it’s in accordance with 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 well fixed.
• Raise and set down the equipment carefully.
• Do not tilt the unit more than 15 degrees during transportation.
• When lifting the unit, make sure that it’s balanced and stable; bear in mind that the heaviest part is where the
compressor is installed.
• Check minimum length of wire rising.
STORAGE
If the equipment is going to be stored please follow the instructions below in order to avoid damages, corrosion or
deterioration:
• Keep the unit away from direct sunlight, rain, sand, wind or temperatures above 50ºC
• Prolonged storage temperature: maximum 50ºC, minimum 0ºC
• Maximum humidity: 90%

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
ACHIA / ACHIBA
11.16 207464 Rev.106
INSTALLATION LOCATION
• Check if the base is able to support the weight of unit during operation.
• Reserve a minimum service area according to Fig. 2.
• Choose a place free of dust or any other foreign material that could clog or damage the condenser coil. The location
should also be a place that cannot be flooded.
• Consult and respect all regulations concerning installation of air conditioning systems.
• Check if sound waves do not disturb anyone.
SERVICE AREA (mm)
SPLIT
EVAPORATOR UNIT ECHIA-ECHIBA
COMPACT
ACHIA-ACHIBA
CONDENSATOR UNIT CCHIA-CCHIBA

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
ACHIA / ACHIBA
11.16 207464 Rev.106
WEIGHT DISTRIBUTION (kg)
MODEL 301
1
2
3
4
TOTAL
ACHIA-ACHIBA
75
43
50
52
220
ECHIA-ECHIBA
15
23
26
17
83
CCHIA-CCHIBA
34
39
30
45
148
UNIT SETTLEMENT
• Make sure that the unit is correctly levelled.
• T he bed frame should be strong and solid enough to support the weight of the machine.
• Verify that the indoor drain is working properly.
ACHIA-ACHIBA
CCHIA-CCHIBA
ECHIA-ECHIBA

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ACHIA / ACHIBA
11.16 207464 Rev.106
START UP
• Start up should be performed by qualified technical people.
• Use a start up check list: record inlet and outlet temperatures and pressures, outdoor air temperature, volts and amps
of each compressor and each fan motor, suction and discharge pressure of each compressor.
• Use a similar check list for service and maintenance works.
• Remember that after 4 hours of operation, it is necessary to clean the filters.
• Monitor at least 3 cooling cycle operations.
• Due to the unit has frequency converters for compressor and fans, it’s essential that the supply be at minimum 300 mA
to prevent supply cuts caused by the differential switch.
1.Main power 230/1/50 + ground
2.Ground
3.Remote control
POWER SUPPLY
220 v AC
Fig. 5
BELDEN TYPE
SHIELDED AND TWISTED
1
2
3
L N
Check the following points:
• Wires are well tightened.
• Panels are firmly secured with screws.
• There are no oil or refrigerant leaks.
• The unit is correctly leveled.
• There is enough space for service and maintenance.
• Drainage is not blocked.
• Crankcase heater has been working at least 24 hours prior to the start-up.
• Air filters are clean and correctly mounted.
• Grilles, air diffusers, air ducts and flexible connections are in good condition.
• Electrical power source is in accordance with what is said in the nameplate.
• Fans rotate in the right direction.
BEFORE START UP

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
ACHIA / ACHIBA
11.16 207464 Rev.106
OPERATION LIMITS
OUTDOOR AIR
INDOOR AIR
DRY
WET
DRY
WET
COOLING
ºC
ºC
ºC
ºC
Standard
35ºC
-
27ºC
19ºC
Minimum
20ºC*
-
20ºC
15ºC
Maximum
46ºC
-
32ºC
23ºC
HEATING
ºC
ºC
ºC
ºC
Standard
7ºC
6ºC
20ºC
-
Minimum
-12ºC
-13ºC
20ºC
-
Maximum
24ºC
18ºC
26ºC
-
Units can operate at a maximum altitude of 1.500 meters.
*For temperatures of less than 20ºC, it is necessary to use the condensation control optional.
For other conditions, please consult.
• Main power supply of the unit should agree with the data shown on the nameplate. HITECSA will not be held
responsible for damages resulted from non observance of the above.
• Always use the wiring diagram sent with the unit to make electrical connections
• Check that the crankcase heater has been working at least 24 hours prior to the start up of the unit.
• Current supply should be within 10% of Volts indicated on the unit nameplate.
• Do not operate the unit at different current from that shown on the unit nameplate.
• The installer should put line protection elements in compliance with current legislation.
• The interconnecting wires should be protected with a tube or put inside a groove channel.
Before starting installation, service or maintenance, turn off the main power switch in
order to avoid electrical shock that may cause personal damages.
1.Main power 230/1/50 + ground
2.Ground
3.Remote control
POWER SUPPLY
220 v AC
BELDEN TYPE
SHIELDED AND TWISTED
L N T
BELDEN TYPE
SHIELDED AND TWISTED
EXTERIOR UNIT
INTERIOR UNIT
1
2
3
2
1
L N T

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
ACHIA / ACHIBA
11.16 207464 Rev.106
INSTALLATION
ELECTRICAL DATA
(1) Cooling: Compressor frequency: 80Hz. Outdoor dry temperature: 35 °C. Indoor Dry / Wet air temperature: 27ºC / 19 °C. Indoor airflow: Medium.
(2) Heating: Compressor frequency: 80Hz. Outdoor dry /wet air temperature: 7ºC / 6 °C. Indoor dry temperature: 20 °C. Indoor airflow: Medium.
(3) Cooling maximum: Compressor frequency: 110Hz. Outdoor dry temperature: 35 °C. Indoor Dry / Wet air temperature: 27ºC / 19 °C. Indoor airflow: High.
(4) Heating maximum: Compressor frequency: 120Hz. Outdoor dry /wet air temperature: 7ºC / 6 °C. Indoor dry temperature: 20 °C. Indoor airflow: High.
DRAINAGE
• Indoor drainage (of condensate water) has a 3/4” MPT
connection.
• Condensate drain line diameter should be equal or larger
than the unit connection depending on line length and
general building configuration.
• Drainage line should have a minimum inclination of 2% for
proper water evacuation.
• When drainage line is exposed to temperatures below
0ºC, it is necessary to provide thermal insulation or
electrical heating wire to avoid water freezing and tube
damages
• It is advisable to install a trap with proper dimensions.
Serie Inverter 301
ACHIA/ACHIBA
CCHIA/CCHIBA
ECHIA/ECHIBA
ELECTRICAL CHARACTERISTICS IN COOLING MODE (1)
Voltage
V/ph/Hz
220-240 / I / 50
Absorbed power
KW
3,1
Absorbed current
A
14,3
ELECTRICAL CHARACTERISTICS IN HEATING MODE (2)
Voltage
V/f/Hz
220-240 / I / 50
Absorbed power
KW
2,6
Absorbed current
A
12,6
ELECTRICAL CHARACTERISTICS IN COOLING MODE (3)
Voltage
V/f/Hz
220-240 / I / 50
Absorbed power
KW
3,5
Absorbed current
A
16,0
RATED ELECTRICAL CHARACTERISTICS IN COOLING MODE (4)
Voltage
V/f/Hz
220-240 / I / 50
Absorbed power
KW
2,9
Absorbed current
A
14,0

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11.16 207464 Rev.106
AIR DUCTS
• Air duct dimensions will be determined according to the airflow and available static pressure.
• Ducts must be designed by qualified technical people.
• Use ducts made of non-inflammable materials in order to avoid any emission of gas in case of fire. It is advisable to use
metal plate duct with insulation.
• Use flexible ducts to connect air ducts into the unit and thus avoid vibration and noise transmission.
COMPRESSOR LUBRICANT
Compressors with R410a refrigerant use PVE oil, each manufacturer using specific oil for his product. The system must
not remain open to the atmosphere more than 15 minutes.
Due to oil qualities affect directly the correct work of compressor, you must be very careful during manipulation: Do not
mix the oil with other substances.

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
ACHIA / ACHIBA
11.16 207464 Rev.106
TECHNICAL DATA
Inverter 301 Serie
ACHIA/ACHIBA
CCHIA/CCHIBA
ECHIA/ECHIBA
CAPACITIES
Cooling capacity (1)
KW
7,4
7,4
7,4
Cooling capacity (20 - 100 - 110 Hz)
KW
1,2 –7,4 –8,1
1,2 –7,4 –8,1
1,2 –7,4 –8,1
Heating capacity (2)
KW
7,5
7,5
7,5
Heating capacity (20 - 100 - 110 Hz)
KW
1,3 –7,5 –8,3
1,3 –7,5 –8,3
1,3 –7,5 –8,3
EER
---
>8
>8
>8
SEER
---
4,6
4,6
4,6
Class (Cooling mode)
---
B
B
B
SCOP (Warm zone)
---
4,1
4,1
4,1
Class (Heating mode)
---
A+
A+
A+
REFRIGERANT
Type
R-410A
Global Warming Potential (GWP)
2088
Number of cooling circuits
1
1
1
Refrigerant load
Kg
3,5
3,5
-
Refrigerant connections (liquid line)
‘’
-
3/8
3/8
Refrigerant connections (gas line)
‘’
-
1/2
1/2
Max length between units (horizontal)
m
-
30
30
Max height between units (vertical)
m
-
20
20
COMPRESSOR
Type
SCROLL
---
Quantity
1
---
Type of lubricant
Ester VG74
---
Load of lubricant
lt
0,65
---
OUTDOOR EXCHANGER
Type
Copper tubes and aluminum fins
---
Surface area
m²
0,366
0,366
---
Steps
mm
2,1
2,1
---
Tube diameter
‘’
5/16
5/16
---
OUTDOOR FAN
Type
Double intake centrifugal fan
---
Model
10/10 DD
10/10 DD
---
Motor capacity
KW
0,55
0,55
---
Maximum air flow
m³/hr
3.000
3.000
---
Available static pressure
Pa
50
50
---
Speed
RPM
1.014
1.014
---
INDOOR EXCHANGER
Type
Copper tubes and
aluminum fins
---
Copper tubes and
aluminum fins
Surface area
m²
0,252
---
0,252
Steps
mm
2,1
---
2,1
Tube diameter
‘’
3/8
---
3/8
INDOOR FAN
Type
Double intake centrifugal
---
Double intake centrifugal
Model
10/10 DD
---
10/10 DD
Motor capacity
KW
0,55
---
0,55
Maximum airflow
m³/hr
1800
---
1800
Available static pressure
Pa
50
---
50
Speed
RPM
870
---
870
DIMENSIONS
Length
mm
1445
1405
1405
Width
mm
1339
825
600
Height
mm
504
504
504
Weight
Kg
220
148
83
(*) All indoor units and the outdoor units which have “FLARE” valve are pre-charged with nitrogen.

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ACHIA / ACHIBA
11.16 207464 Rev.106
DIMENSIONS
ACHIA-ACHIBA 301
CONSTRUCTION DETAILS:
1. Compressor 2. Outdoor heat exchanger 3. Indoor heat exchanger 4. Electric box 5. Indoor Turbine 6. Outdoor turbine 7. Air filter 8. Main power switch 9. Drainage 10.Input power supply 11.Pressure plugs

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ACHIA / ACHIBA
11.16 207464 Rev.106
ECHIA-ECHIBA 301
CONSTRUCTION DETAILS: 1. Heat exchanger 2. Electrical box 3. Turbine 4. Air filter 5. Drainage ¾” 6. Input power supply 7. Cooling connections

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11.16 207464 Rev.106
CCHIA-CCHIBA 301
CONSTRUCTION DETAILS: 1. Electrical box
2. TTurbine 3. Interior drainge¾” 4. Heat exchanger 5. Compresor 6. Comressor inverter 7. Cooling connections 8. Pressure plugs 9. Inin switch 10. Power supply

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
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11.16 207464 Rev.106
Split systems demand a correct disposition of refrigerant piping and a correct connection between both indoor and
outdoor units.
Pressure drop of the line
Circulation speed of the refrigerant
Refrigerant mass
In heat pump operation, the gas line works as discharge line.
1. When indoor unit is at a lower level than outdoor unit:
It is not essential to install traps in the vertical line. However, it could be convenient to install some every 6 to 9 meters in
order to help oil return.
A –INDOOR UNIT
B –OUTDOOR UNIT
GAS LINE
LIQUID LINE
B
A
LINES POSITION
DISCHARGE LINES
COOLING CIRCUIT
REFRIGERANT LINES
When working with the machines in operation,
discharge line temperature is very HIGH and could result in burns.

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AIR-TO-AIR UNITS –COMPACT HORITZONTAL INVERTER
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11.16 207464 Rev.106
2. When indoor unit is at the same level as outdoor unit:
Rise the suction line to a higher level than the exchanger in order to avoid refrigerant return into the compressor.
3. When indoor unit is at a higher level than outdoor unit.
A–INDOOR UNIT
B–OUTDOOR UNIT
GAS LINE
LIQUID LINE
A–INDOOR UNIT
B–OUTDOOR UNIT
GAS LINE
LIQUID LINE

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ACHIA / ACHIBA
11.16 207464 Rev.106
NOTAS:
Refrigerant lines should be as short and straight as possible.
Use recommended diameters to reduce quantity of refrigerant in the system.
R410A
Liquid line
Ø
3/8”
1/2”
5/8”
3/4”
7/8”
1 1/8”
1 3/8”
Gas quantity
gr/m
52
100
166
244
341
538
867
Fasten the tubes to fixed elements by means of braces to avoid vibration.
Carry out welding works in dry nitrogen atmosphere inside the line to be welded -USE A BOTTLE WITH PRESSURE
REGULATOR- to avoid the appearance of oxide and to expel rest of polluting material or humidity. Use rods with a
minimum 15% of silver alloy.
Insulate suction line in order to avoid condensation. Liquid line will be insulated only when exposed to high
temperatures (solar radiation, etc.)
Horizontal segment of suction line: 4% pitch towards the compressor.
In addition to refrigerant, sometimes it’s necessary to add oil. For more than 25 meters, add 30 grams.
When height difference is more than 30 meters, it may be necessary to install an oil separator on discharge line.
If liquid line is descendant and there is a considerable height difference, you have to compensate the excess
pressure before the expansion.
If liquid line is ascendant and there is a considerable height difference, the formation of gas refrigerant before the
expansion must be avoided.
If you should not find the chosen pipe diameter, you can use the immediately lower diameter. The system will
function normally only with a slight reduction of performance.
• Units ACHIA-ACHIBA / ECHIA-ECHIBA / CCHIA-CCHIBA are supplied with nitrogen charge. Before proceeding to any
welding work, it’s necessary to remove this charge out of the interconnection lines. Once you have finished, make the
vacuum and charge with the right amount of refrigerant.
It is forbidden by law to expel refrigerant into the atmosphere; therefore, it is
necessary to recover all the refrigerant and to avoid leaks.
Units without valves come loaded with nitrogen pressure leak test. Drain with caution
previously the realization of unions.

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11.16 207464 Rev.106
• Should it be necessary to add or recover refrigerant, do it always in LIQUID phase, never in gas or vapour phase since
this would cause wrong mixing conditions.
• Due to its high pressure and quick evaporation, refrigerant R410A cannot be kept in liquid phase inside charge cylinder
because bubbles would form, making reading difficult.
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• Repair immediately any refrigerant leak.
• Never overcharge the system.
• Never use compressor as a vacuum pump.
• If symptoms of refrigerant loss appear during operation, it’s necessary to carry out a leak test. Leak detectors usually
employed with CFC and HCFC cannot be used with R410a, due to chlorine in its composition. A leak detector for R134A
may be used but the sensibility will be lower (when sensibility is 1 for R134A, it falls to 0,6 for R410A).
• To find small leaks, you will need a detector for HCF. Sensibility for R410A is approx. 23 grams per year.
• If a gas leak is found, it will be necessary to remove and completely recover the refrigerant charge. Pressurize the
system with dry nitrogen. If no leakage is detected, then do the vacuum and charge again with refrigerant.
REFRIGERANT CHARGE
Never use oxygen to carry out leak tests. Oxygen reacts violently when in
contact with oil and could cause an explosion resulting in damage, personal
injuries or even death.
If it’s necessary to make welding operations, you must fill the circuit with dry
nitrogen. Combustion of R410A refrigerant generates toxic gases.