Hitecsa ACHIA 601, ACHIA 741, ACHIA 901, ACHIBA 601, ACHIBA 741 Installation, Operation And Maintenance Manual

Models: 601 │ 741 │ 901

Heating capacity:

13,0 to 20,4

Cooling capacity: 12,9 to 20,6 kW

11.14 207434 Rev.103

ACHIA | ACHI

BA

AIR-TO-AIR UNITS –

COMPACT HORITZONTAL INVERTER

Cooling only

Heat pump

kW

BA

INSTALLATION, OPERATION AND MAINTENANCE

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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) ........................................................................ 07

Unit settlement ..................................................................................... 07

START UP ................................................................................................. 08

Operation limits .................................................................................... 09

Electrical data ...................................................................................... 10

Drainage .............................................................................................. 10

Air ducts ............................................................................................... 10

Adjustment of fan transmission ............................................................ 11

Compressor lubricant ........................................................................... 11

TECHNICAL DATA ................................................................................... 12

DIMENSIONS ............................................................................................ 13

REFRIGERANT CHARGE ........................................................................ 15

MAINTENANCE ........................................................................................ 16

APPENDIX: SAFETY DATA R410A ......................................................... 17

INDEX

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Thank you for trust in HITECSA Product. From our company we are offering to the market, for more than 30 years, an
extended range of specialized units for air conditioning and cooling installations. Our approach is based in efficiency,
flexibility, manageability and practical solutions. It has built a hallmark of our product catalogue.

The versatility of our factories allows us to contribute solutions almost customizables in each project, searching a solution
for every problem that arises in design and implementation of air conditioning installations.

From Hiplus Aire Acondicionado’s team, once more thank you very much

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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: HILPUS 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.

INTRODUCTION

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• 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 work with 100% recirculated air. It is prohibited the installation with 100% outdoor air. See
application limits.

• Do not install the unit in explosive atmosphere.

SAFETY PRECAUTIONS

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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• 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

• 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.

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

• Storage temperature: maximum 50ºC, minimum -10ºC

• Maximum humidity: 90%

STORAGE

RIGGING

INSPECTION UPON RECEIPT

RECEPTION

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• 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.

MODEL 1 2 3 4 TOTAL

601

91 76 131 77 375

741

110 80 114 116 420

901

116 102 138 139 495

• 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.

UNIT SETTLEMENT

WEIGHT DISTRIBUTION (kg)

SERVICE AREA (mm)

INSTALLATION LOCATION

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• 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.

START

UP

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

1. Main power 400/3/50 + neutral

2. Earth

3. Remote control

POWER SUPPLY

220 v AC

Fig. 5

BELDEN TYPE

SHIELDED AND TWISTED

1

2

3

L1 L2 L3 N

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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 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.

serie INVERTER 601 741 901

NOMINAL ELECTRICAL SPECIFCATIONS FOR COOLING STANDARD CONDITIONS (1)

Power supply 400/3/50 + N 400/3/50 + N 400/3/50 + N
Input Capacity (cooling) kW 5,1 6,6 8,5
Current input (cooling) A 8,3 10,4 13,5
Indoor airflow m3/h 2.300 3.000 3.700

NOMINAL ELECTRICAL SPECIFCATIONS FOR COOLING STANDARD CONDITIONS (2)

Power supply 400/3/50 + N 400/3/50 + N 400/3/50 + N
Input Capacity (cooling) kW 5,0 5,9 8,7
Current input (cooling) A 7,9 9,5 14,3
Indoor airflow m3/h 2.800 3.600 4.400

ELECTRICAL DATA

OPERATION LIMITS

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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serie INVERTER 601 741 901

NOMINAL ELECTRICAL SPECIFCATIONS FOR COOLING STANDARD CONDITIONS (3)

Power supply 400/3/50 + N 400/3/50 + N 400/3/50 + N
Input Capacity (cooling) kW 8,7 11,8 14,8
Current input (cooling) A 13,4 18,2 22,3
Indoor airflow m3/h 2.800 3.600 4.400

NOMINAL ELECTRICAL SPECIFCATIONS FOR COOLING STANDARD CONDITIONS (4)

Power supply 400/3/50 + N 400/3/50 + N 400/3/50 + N
Input Capacity (cooling) kW 8,2 10,6 14,1
Current input (cooling) A 12,7 16,9 21,7
Indoor airflow m3/h 3.600 4.600 5.500

(1) Cooling: Compressor frequency: 80Hz. Outdoor dry temperature: 35 °C. Indoor Dry / Wet air temperature: 27ºC / 19 °C. Indoor airflow: Low.
(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: 120Hz. Outdoor dry temperature: 35 °C. Indoor Dry / Wet air temperature: 27ºC / 19 °C. Indoor airflow: Medium
(4) Heating maximum: Compressor frequency: 120Hz. Outdoor dry /wet air temperature: 7ºC / 6 °C. Indoor dry temperature: 20 °C. Indoor airflow: High

• 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.

• 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.

AIR DUCTS

DRAINAGE

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• Adjust transmission so that indoor fan-motor reaches its nominal value.

• If consumption is lower than the nominal value, the airflow is insufficient.

- To change fan speed:

1. Remove the belt and slide the motor over the channel.

2. Loosen setscrews and turn the mobile flap around, depending on your needs.

3. Tight setscrews.

4. Put the belt back in the pulley’s channel.

5. Tight the belt using a tension adjuster screw.

- To line up motor and fan pulleys:

1. Loosen setscrews from the fan pulley.

2. Slide the fan pulley down the axe and line up with the motor, using a ruler to make sure that it’s in parallel with the belt.

3. Tight the fan pulley using a tension adjuster crew.

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.

COMPRESSOR LUBRICANT

ADJUSMENT OF FAN TRANSMISSION

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serie INVERTER 601 741 901

CAPACITIES

Cooling capacity (20 - 80 - 120 Hz) kW

3,8 - 12,9 - 17,3 4,9 - 16,6 - 22,4 6,2 - 20,6 - 26,5

Heating capacity (20 - 80 - 120 Hz) kW

4,0 - 13,0 - 18,6 5,2 - 15,7 - 24,2 6,7 - 20,4 - 28,9

Coefficient EER (40 - 80 - 90 Hz)

2.87 - 2.51 - 2.40 2.83 - 2.53 - 2.27 2.93 - 2.42 - 2.22

Coefficient COP (40 - 80 - 90 Hz)

2.92 - 2.52 -2.47 2.91 - 2.64 - 2.50 2.83 - 2.35 - 2.17

Number of refrigerant circuits

1 1 1

REFRIGERANT

Type R-410A

Warming potential (GWP) 1725

Load (include 5 m of lines) kW 6,3 7,2 9,4

COMPRESSOR

Type SCROLL DC INVERTER

Number

1 1 1

Kind of oil

FV50S (PVE) FV50S (PVE) FV50S (PVE)

Oil volume l

1,4 1,7 2,3

OUTDOOR HEAT EXCHANGER

Type ALUMINIUM FINS AND COPPER TUBING

Frontal surface m2 0,605 0,605 0,900

Fins size mm 1,8 1,8 1,8

Piping diameter " 3/8 3/8 3/8

OUTDOOR FAN

Type DOUBLE SUCTION CENTRIFUGAL

Model 12/12 DD 12/12 SS 12/12 SS

Voltage V 400/3/50 400/3/50 400/3/50

Motor power kW 1,1 1,5 2,2

Transmission speed Integrated motor Pulleys Pulleys

Maximum airflow m3/h 5.600 6.200 7.500

Available static pressure Pa 50 50 50

Maximum speed fan r.p.m. 847 970 1.058

INTDOOR HEAT EXCHANGER

Type ALUMINIUM FINS AND COPPER TUBING

Frontal surface m2 0,495

0,539 0,648

Fins size mm

1,8 1,8 1,8

Piping diameter "

3/8 3/8 3/8

INDOOR FAN

Type DOUBLE SUCTION CENTRIFUGAL

Model 12/9 SS 12/9 SS 12/12 SS

Voltage V 400/3/50 400/3/50 400/3/50

Motor power kW 1,1 1,5 1,5

Transmission speed Pulleys Pulleys Pulleys

Air flows (Low / Medium / High) m3/h 2.300/2.800/3.600 3.000/3.600/4.600 3.700/4.400/5.600

Available static pressure higher flow Pa 70 80 90

Maximum speed fan r.p.m. 1.020 1.030 996

DIMENSIONS AND WEIGHT

Length

mm 1755 1755 1998

Width

mm 1697 1697 1755

Height

mm 640 640 672

Weight

Kg 375 420 495

(1) Cooling: Compressor frequency: 80Hz. Outdoor dry temperature: 35 °C. Indoor Dry / Wet air temperature: 27ºC / 19 °C. Indoor airflow: Low.
(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: 120Hz. Outdoor dry temperature: 35 °C. Indoor Dry / Wet air temperature: 27ºC / 19 °C. Indoor airflow: Medium
(4) Heating maximum: Compressor frequency: 120Hz. Outdoor dry /wet air temperature: 7ºC / 6 °C. Indoor dry temperature: 20 °C. Indoor airflow: High

TECHNICAL DATA

AIR-TO-AIR UNITS –

COMPACT HORITZONTAL INVERTER

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► MODELS 601 - 741

DIMENSIONS

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► MODEL 901

DIMENSIONS

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11.14 207434 Rev.103

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• 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.

21

• 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.

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It is advisable to do maintenance works every 1.000 operating hours as well as at the beginning of each cooling season.

• Coils: At least once a year, clean condenser coils with water and detergent, then dry with air at a pressure of 600 kPa.
Never clean with wire brush.

• Fans and motors: Adjust transmission belt at least twice during the first month of operation and then check every

1.000 hours. Fan and motors do not need additional lubrication.

• Drainage system: Verify condition and good operation of the drainage tray and siphon.

• Refrigeration circuit: Check for oil refrigerant leaks, noises or system’s vibrations. Take measurements of
temperatures and pressures of components and record them on the maintenance form.

• Electrical circuit: Make sure that all electrical connections -wires, contactors, and terminals- are properly tight. Record
the measurements (volts and amperes) of each compressor and fan motor. Verify the starting current. Check the good
operation of all relays, presostats and phase sequence relay of Scroll compressor.

• Air filters: Clean filters after the first 4 operating hours and then every 3 months (or even before). Wash filters in water
with detergent, rinse thoroughly and let dry.

MAINTENANCE

Before performing any service or maintenance operation, turn off the main power

switch of the system to avoid any personal injuries. Block the power switch so that

nobody other than a qualified technician can switch on electrical power.

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Refrigerant data

Safety data: R410A

Toxicity Low

Contact with skin

R410A vapours can irritate the skin and eyes. In liquid form, it can freeze skin
on contact. If contact with skin occurs, flush the exposed area with lukewarm
water until all of the chemical is removed. If there is evidence of frostbite,
bathe in lukewarm water.

Contact with eyes

If contact with eyes occurs, immediately flush with large amounts of lukewarm
water for at least 15 minutes, lifting eyelids occasionally to facilitate irrigation.
Seek medical attention as soon as possible.

Ingestion

Very unlikely - should something happen, it will cause frost burns. Do not
induce vomiting. Only if the patient is conscious, wash out mouth with water
and give some 250 ml of water to drink. Then, obtain medical attention.

Inhalation

Inhalation of the R41 0A vapour may cause irritation. Vapour inhalation at high
concentrations may result in asphyxiation or the heart may become sensitized,
causing cardiac arrhythmia. When concentration of R410A reach levels which
reduce oxygen to 14-16% by displacement, symptoms of asphyxiation will
occur. An individual exposed to high concentrations of R410A must be given
medical attention immediately. Adequate ventilation must be provided at all
times.

Recommendations

Semiotics or support therapy is recommended. Cardiac sensitisation has been
observed that, in the presence of circulating catecholamines such as
adrenalin, may cause cardiac arrhythmia and accordingly, in case of exposure
to high concentrations, cardiac arrest.

Prolonged exposure

R410A: a study on the effects of exposure to 50,000 ppm during the whole life
of rats has identified the development of benign testicle tumour.
This situation should therefore be negligible for personnel exposed to
concentrations equal to or lower than professional levels.

Professional levels R410A: Recommended threshold: 1000 ppm v/v - 8 hours TWA.

Stability R410A: is stable under normal operating conditions.

Conditions to avoid

Do not use in the presence of high temperatures, flames, burning surfaces and
excess humidity.

Hazardous reactions

Contact with certain red-hot metals may result in exothermic or explosive
reactions and yield toxic and/or corrosive decomposition products. Specific
materials to avoid include freshly abraded aluminium surfaces and active
metals such as sodium, potassium, calcium, powdered aluminium, magnesium
and zinc.

Hazardous decomposition products

R410A: Halogen acids produced by thermal decomposition and hydrolysis.

APPENDIX: SAFETY DATA R410A

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General precautions

Do not inhale concentrated vapours. Their concentration in the atmosphere
should not exceed the minimum preset values and should be maintained
below the professional threshold. Being more weighty than the air, the vapour
concentrates on the bottom, in narrow areas. T here fore, the exhaust system
must work at low level.

Respiratory system protection

If you are in doubt about the concentration in the atmosphere, it is
recommended to wear a respirator approved by an accident prevention
Authority, of the independent or oxygen type.

Storage

Cylinders must be stored in a cool, dry and properly ventilated storage area
away from heat, flames, corrosive chemicals, flumes, explosives and be
otherwise protected from damage. Keep a temperature below 52°C.

Protective clothing Wear overalls, protective gloves and goggles or a mask.

Accidental release measures

IIt is important to wear protective clothing and a respirator. Stop the source of
the leak, if you can do this without danger. Negligible leaks can be left
evaporating under the sun, providing that the room is well ventilated.
Considerable leaks: ventilate the room. Reduce the leak with sand, earth or
other absorbing substances. Make sure that the liquid does is not channelled
into gutters, sewers or pits where the vapours are likely to create a stuffy
atmosphere.

Disposal

The best method is recovery and recycling. If this method is not practicable,
dispose according to an approved procedure, that shall ensure the absorption
and neutralization of acids and toxic agents.

Fire fighting information R410A: Not flammable in the atmosphere.

Cylinders

The cylinders, if exposed to fire, shall be cooled by water jets; otherwise, if
heated, they may explode.

Protective fire fighting equipment

In case of fire, wear an independent respirator and protective clothing.

HIPLUS AIRE

ACONDICIONADO

Masia Torrents, 2

Tel. [phone]

Fax. [phone]

08800 Vilanova i la Geltrú

Barcelona, Spain

www.hitecsa.com

Specifi

S.L.

subject to change without previous notice.