Panasonic CS-RU9 Air Conditioner Instruction Manual

Panasonic CS-RU9 Air Conditioner

Product Information

Specifications

• Model: ACXF60-53100
• Type: Air conditioner
• Brand: Panasonic

Product Usage Instructions

Installation
This product must only be installed or serviced by qualified personnel. Before installation, maintenance, and/or service, refer to national, state, territory, and local legislation, regulations, codes, installation & operation manuals.

Refrigerant
This air conditioner contains and operates with refrigerant R32, which is mildly flammable. If the refrigerant is leaked together with an external ignition source, there is a possibility of ignition. Qualified personnel should handle this equipment with reference to the installation manual.

Safety Precautions

Ensure proper installation by following the instructions carefully to prevent harm or damage. The seriousness of incorrect installation is classified into two indications:

• WARNING: Indicates the possibility of causing death or serious injury.
• CAUTION: Indicates the possibility of causing injury or damage to properties only.

Maintenance

Regular maintenance is essential for optimal performance. Follow the maintenance instructions stated in the manual. Remind the customer to keep the operating instructions for future reference.

FAQ (Frequently Asked Questions)

Can I install this air conditioner myself?
No, this product must only be installed or serviced by qualified personnel. Incorrect installation may cause harm or damage.

Is the refrigerant used in this air conditioner safe?
The refrigerant used is R32, which is mildly flammable. If leaked with an external ignition source, there is a possibility of ignition. Qualified personnel should handle this equipment with reference to the installation manual.

What should I do if there is a water leakage?
If there is water leakage, it may indicate incorrect installation done by the user. This can cause water leakage, electrical shock, or fire. Contact qualified personnel for assistance.

ACXF60-53100

Installation Instruction
Air conditioner

Panasonic

• illustration only

CS-RU9/CU-RU9 (1.0HP) CS-LU9/CU-RU9 (1.0HP) CS-PU9/CU-RU9 (1.0HP) MODEL NO : CS-QU9/CU-RU9 (1.0HP)
CS-RU12/CU-RU12 (1.5HP) CS-LU12/CU-RU12 (1.5HP)

CS-PU12/CU-RU12 (1.5HP) CS-QU12/CU-RU12 (1.5HP)
CS-RU18/CU-RU18 (2.0HP) CS-LU18/CU-RU18 (2.0HP) CS-PU18/CU- RU18 (2.0HP) CS-QU18/CU-RU18 (2.0HP)

CAUTION
R32
REFRIGERANT
This Air Conditioner contains and operates with refrigerant R32.
THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL.
Refer to National, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the installation, maintenance and/or service of this product.

Explanation of symbols displayed on the indoor unit or outdoor unit.

WARNING

This symbol shows that this equipment uses a mildly flammable refrigerant. If the refrigerant is leaked, together with an external ignition source, there is a possibility of ignition.

CAUTION

This symbol shows that the Installation Manual should be read carefully.

This symbol shows that a service personnel
CAUTION should be handling this equipment with
reference to the Installation Manual.
This symbol shows that there is information
CAUTION included in the Operation Manual and/or
Installation Manual.

SAFETY PRECAUTIONS
· Read the following “SAFETY PRECAUTIONS” carefully before installation. · Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the
model to be installed.
· The caution items stated here must be followed because these important contents are related to safety. The meaning of each
indication used is as below. Incorrect installation due to ignoring of the instruction will cause harm or damage, and the seriousness is classified by the following indications.

WARNING

This indication shows the possibility of causing death or serious injury.

CAUTION

This indication shows the possibility of causing injury or damage to properties only.

The items to be followed are classified by symbols:

Symbol with white background denotes item that is PROHIBITED.
Symbol with dark background denotes item that must be carried out.

· Carry out test running to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care and
maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.

WARNING

· Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
Any unfit method or using incompatible material may cause product damage, burst and serious injury.
· Do not install outdoor unit near handrail of veranda. When installing air- conditioner unit on veranda of a high rise building, child
may climb up to outdoor unit and cross over the handrail causing an accident.
· Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet
with other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.
· Do not tie up the power supply cord into a bundle by band.
Abnormal temperature rise on power supply cord may happen.
· Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury. · Do not sit or step on the unit, you may fall down accidentally. · Keep plastic bag (packaging material) away from small children,
it may cling to nose and mouth and prevent breathing.
· When installing or relocating air conditioner, do not let any substance other than the specified refrigerant,
eg. air etc mix into refrigeration cycle (piping). Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.
· Do not pierce or burn as the appliance is pressurized. Do not expose the appliance to heat, flame, sparks, or other sources of
ignition. Else, it may explode and cause injury or death.
· Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc.
· For R32/R410A model, use piping, flare nut and tools which is specified for R32/R410A refrigerant. Using of existing (R22)
piping, flare nut and tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury. For R32 and R410A, the same flare nut on the outdoor unit side and pipe can be used.
· Since the working pressure for R32/R410A is higher than that of refrigerant R22 model, replacing conventional piping and flare
nuts on the outdoor unit side are recommended.
· If reuse piping is unavoidable, refer to instruction “IN CASE OF REUSING EXISTING REFRIGERANT PIPING” · Thickness of copper pipes used with R32/R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm. · It is desirable that the amount of residual oil less than 40 mg/10 m. · Engage authorized dealer or specialist for installation.
If installation done by the user is incorrect, it will cause water leakage, electrical shock or fire.
· For refrigeration system work, install according to this installation instructions strictly. If installation is defective, it will cause
water leakage, electrical shock or fire.
· Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage,
fire or electrical shock.
· Install at a strong and firm location which is able to withstand weight of the set. If the strength is not enough or installation is
not properly done, the set will drop and cause injury.
· For electrical work, follow the national regulation, legislation and this installation instructions. An independent circuit and single
outlet must be used. If electrical circuit capacity is not enough or defect found in the electrical work, it will cause electrical shock or fire.
· Do not use joint cable for indoor / outdoor connection cable. Use the specified indoor/outdoor connection cable, refer to
instruction 5 CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor/outdoor connection. Clamp the cable so that no external force will have impact on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the connection.
· Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed
perfectly, it will cause fire or electrical shock.
· This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual Current
Device (RCD), with sensitivity of 30 mA at 0.1 sec or less. Otherwise, it may cause electrical shock and fire in case of equipment breakdown or insulation breakdown.
· During installation, install the refrigerant piping properly before running the compressor. Operation of compressor without fixing
refrigeration piping and valves at opened position will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.
· During pump down operation, stop the compressor before removing the refrigeration piping. Removal of refrigeration piping
while compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.
· Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the
flare may break and cause refrigerant gas leakage.
· After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant
contacts with fire.
· Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with fire. · Be aware that refrigerants may not contain an odour.
1

2-10. Checks to electrical devices
· Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. · Initial safety checks shall include but not limit to:-
– That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking. – That there is no live electrical components and wiring are exposed while charging, recovering or purging the system. – That there is continuity of earth bonding.
· At all times the manufacturer’s maintenance and service guidelines shall be followed. · If in doubt consult the manufacturer’s technical department for assistance. · If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily
dealt with.
· If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be
used.
· The owner of the equipment must be informed or reported so all parties are advised thereinafter.

3. Repairs to sealed components
· During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior
to any removal of sealed covers, etc.
· If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of
leak detection shall be located at the most critical point to warn of a potentially hazardous situation.
· Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered
in such a way that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc.
· Ensure that apparatus is mounted securely. · Ensure that seals or sealing materials have not degraded such that they no longer serve the purpose of preventing the ingress
of flammable atmospheres.
· Replacement parts shall be in accordance with the manufacturer’s specifications.

NOTE:

– The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment. – Intrinsically safe components do not have to be isolated prior to working on them.

4. Repair to intrinsically safe components
· Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the
permissible voltage and current permitted for the equipment in use.
· Intrinsically safe components are the only types that can be worked on while live in the presence of a flammable atmosphere. · The test apparatus shall be at the correct rating. · Replace components only with parts specified by the manufacturer. Unspecified parts by manufacturer may result ignition of
refrigerant in the atmosphere from a leak.
5. Cabling
· Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse
environmental effects.
· The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.
6. Detection of flammable refrigerants
· Under no circumstances shall potential sources of ignition be used in the searching or detection of refrigerant leaks. · A halide torch (or any other detector using a naked flame) shall not be used. · The following leak detection methods are deemed acceptable for all refrigerant systems.
– No leaks shall be detected when using detection equipment with a sensitivity of 5 grams per year of refrigerant or better under a pressure of at least 0,25 times the maximum allowable pressure (>1.04MPa, max 4.15MPa) for example, a universal sniffer.
– Electronic leak detectors may be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need recalibration. (Detection equipment shall be calibrated in a refrigerant-free area.)
– Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. – Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed
and the appropriate percentage of gas (25 % maximum) is confirmed. – Leak detection fluids are also suitable for use with most refrigerants, for example, bubble method and fluorescent method agents. The
use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. – If a leak is suspected, all naked flames shall be removed/extinguished. – If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by
means of shut off valves) in a part of the system remote from the leak. The precautions in #7 must be followed to remove the refrigerant.
7. Removal and evacuation
· When breaking into the refrigerant circuit to make repairs ­ or for any other purpose ­ conventional procedures shall be used.
However, it is important that best practice is followed since flammability is a consideration. The following procedure shall be adhered to:
· remove refrigerant -> · purge the circuit with inert gas -> · evacuate -> · purge with inert gas -> · open the circuit by cutting or brazing
· The refrigerant charge shall be recovered into the correct recovery cylinders. · The system shall be purged with OFN to render the appliance safe. (remark: OFN = oxygen free nitrogen, type of inert gas) · This process may need to be repeated several times. · Compressed air or oxygen shall not be used for this task. · Purging shall be achieved by breaking the vacuum in the system with OFN and continuing to fill until the working pressure is
achieved, then venting to atmosphere, and finally pulling down to a vacuum.
· This process shall be repeated until no refrigerant is within the system. · When the final OFN charge is used, the system shall be vented down to atmospheric pressure to enable work to take place. · This operation is absolutely vital if brazing operations on the pipe work are to take place. · Ensure that the outlet for the vacuum pump is not close to any potential ignition sources and there is ventilation available.

4

8. Charging procedures
· In addition to conventional charging procedures, the following requirements shall be followed.
– Ensure that contamination of different refrigerants does not occur when using charging equipment. – Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them. – Cylinders shall be kept in an appropriate position according to the instructions. – Ensure that the refrigerating system is earthed prior to charging the system with refrigerant. – Label the system when charging is complete (if not already). – Extreme care shall be taken not to over fill the refrigerating system.
· Prior to recharging the system it shall be pressure tested with OFN (refer to #7). · The system shall be leak tested on completion of charging but prior to commissioning. · A follow up leak test shall be carried out prior to leaving the site. · Electrostatic charge may accumulate and create a hazardous condition when charging and discharging the refrigerant.
To avoid fire or explosion, dissipate static electricity during transfer by grounding and bonding containers and equipment before charging/discharging.
9. Decommissioning
· Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its details. · It is recommended good practice that all refrigerants are recovered safely. · Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of
recovered refrigerant.
· It is essential that electrical power is available before the task is commenced.
a) Become familiar with the equipment and its operation. b) Isolate system electrically. c) Before attempting the procedure ensure that:
· mechanical handling equipment is available, if required, for handling refrigerant cylinders; · all personal protective equipment is available and being used correctly; · the recovery process is supervised at all times by a competent person; · recovery equipment and cylinders conform to the appropriate standards.
d) Pump down refrigerant system, if possible. e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system. f) Make sure that cylinder is situated on the scales before recovery takes place. g) Start the recovery machine and operate in accordance with instructions. h) Do not over fill cylinders. (No more than 80 % volume liquid charge). i) Do not exceed the maximum working pressure of the cylinder, even temporarily. j) When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment
are removed from site promptly and all isolation valves on the equipment are closed off. k) Recovered refrigerant shall not be charged into another refrigerating system unless it has been cleaned and checked.
· Electrostatic charge may accumulate and create a hazardous condition when charging or discharging the refrigerant.
To avoid fire or explosion, dissipate static electricity during transfer by grounding and bonding containers and equipment before charging/discharging.
10. Labelling
· Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. · The label shall be dated and signed. · Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant.
11. Recovery
· When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all
refrigerants are removed safely.
· When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. · Ensure that the correct number of cylinders for holding the total system charge are available. · All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for
the recovery of refrigerant).
· Cylinders shall be complete with pressure relief valve and associated shut- off valves in good working order. · Recovery cylinders are evacuated and, if possible, cooled before recovery occurs. · The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand
and shall be suitable for the recovery of concerning the equipment that is at hand and shall be suitable for the recovery of flammable refrigerants.
· In addition, a set of calibrated weighing scales shall be available and in good working order. · Hoses shall be complete with leak-free disconnect couplings and in good condition. · Before using the recovery machine, check that it is in satisfactory working order, has been properly maintained and that any
associated electrical components are sealed to prevent ignition in the event of a refrigerant release. Consult manufacturer if in doubt.
· The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant Waste
Transfer Note arranged.
· Do not mix refrigerants in recovery units and especially not in cylinders. · If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make
certain that flammable refrigerant does not remain within the lubricant.
· The evacuation process shall be carried out prior to returning the compressor to the suppliers. · Only electric heating to the compressor body shall be employed to accelerate this process. · When oil is drained from a system, it shall be carried out safely.
5

· This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and
telephone. Otherwise, it may cause electrical shock in case of equipment breakdown or insulation breakdown.
CAUTION
· Do not install the unit in a place where leakage of flammable gas may occur. In case gas leaks and accumulates at
surrounding of the unit, it may cause fire.
· Prevent liquid or vapor from entering sumps or sewers since vapor is heavier than air and may form suffocating atmospheres. · Do not release refrigerant during piping work for installation, re-installation and during repairing refrigeration parts.
Take care of the liquid refrigerant, it may cause frostbite.
· Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc. · Do not touch the sharp aluminium fin, sharp parts may cause injury.
· Carry out drainage piping as mentioned in installation instructions.
If drainage is not perfect, water may enter the room and damage the furniture.
· Select an installation location which is easy for maintenance. Incorrect installation, service or repair of this air conditioner may
increase the risk of rupture and this may result in loss damage or injury and/or property. Power supply connection to the room air conditioner. Use power supply cord 3 x 1.5 mm² (1.0 ~ 1.5HP), 3 x 2.5 mm² (2.0HP), type designation 60245 IEC 57 or heavier cord. Connect the power supply cord of the air conditioner to the mains using one of the following method. Power supply point should be in easily accessible place for power disconnection in case of emergency.
· In some countries, permanent connection of this air conditioner to the power supply is prohibited.

1. Power supply connection to the receptacle using power plug. Use an approved 15/16 A (1.0 ~ 1.5HP) or 16 A (2.0HP) power plug with earth pin for the connection to the socket.
2. Power supply connection to a circuit breaker for the permanent connection. Use an approved 16 A (1.0 ~ 2.0HP) circuit breaker for the permanent connection. It must be a double pole switch with a minimum 3.0 mm contact gap.
   · Installation work. It may need two people to carry out the installation work. · Keep any required ventilation openings clear of obstruction.
   PRECAUTION FOR USING R32 REFRIGERANT · Pay careful attention to the following points and the installation work procedures.
   WARNING
   · The appliance shall be stored, installed and operated in a well ventilated room with indoor floor area larger than Amin (m²) [refer
   Table A] and without any continuously operating ignition source. Keep away from open flames, any operating gas appliances or any operating electric heater. Else, it may explode and cause injury or death.
   · The mixing of different refrigerants within a system is prohibited. Models that use refrigerant R32 and R410A have a different
   charging port thread diameter to prevent erroneous charging with refrigerant R22 and for safety. Therefore, check beforehand. [The charging port thread diameter for R32 and R410A is 12.7 mm (1/2 inch).] · Ensure that foreign matter (oil, water, etc.) does not enter the piping.
   Also, when storing the piping, securely seal the opening by pinching, taping, etc. (Handling of R32 is similar to R410A.)
   · Operation, maintenance, repairing and refrigerant recovery should be carried out by trained and certified personnel in the use
   of flammable refrigerants and as recommended by the manufacturer. Any personnel conducting an operation, servicing or maintenance on a system or associated parts of the equipment should be trained and certified.
   · Any part of refrigerating circuit (evaporators, air coolers, AHU, condensers or liquid receivers) or piping should not be located
   in the proximity of heat sources, open flames, operating gas appliance or an operating electric heater.
   · The user/owner or their authorized representative shall regularly check the alarms, mechanical ventilation and detectors, at
   least once a year, where as required by national regulations, to ensure their correct functioning.
   · A logbook shall be maintained. The results of these checks shall be recorded in the logbook. · In case of ventilations in occupied spaces shall be checked to confirm no obstruction. · Before a new refrigerating system is put into service, the person responsible for placing the system in operation should ensure
   that trained and certified operating personnel are instructed on the basis of the instruction manual about the construction, supervision, operation and maintenance of the refrigerating system, as well as the safety measures to be observed, and the properties and handling of the refrigerant used.
   · The general requirement of trained and certified personnel are indicated as below:
   a)Knowledge of legislation, regulations and standards relating to flammable refrigerants; and, b)Detailed knowledge of and skills in handling flammable refrigerants, personal protective equipment, refrigerant leakage prevention,
   handling of cylinders, charging, leak detection, recovery and disposal; and, c)Able to understand and to apply in practice the requirements in the national legislation, regulations and Standards; and, d)Continuously undergo regular and further training to maintain this expertise.
   · Air-conditioner piping in the occupied space shall be installed in such a way to protect against accidental damage in operation
   and service.
   · Precautions shall be taken to avoid excessive vibration or pulsation to refrigerating piping. · Ensure protection devices, refrigerating piping and fittings are well protected against adverse environmental effects (such as
   the danger of water collecting and freezing in relief pipes or the accumulation of dirt and debris).
   · Expansion and contraction of long runs piping in refrigerating systems shall be designed and installed securely (mounted and
   guarded) to minimize the likelihood hydraulic shock damaging the system.
   · Protect the refrigerating system from accidental rupture due to moving furniture or reconstruction activities. · To ensure no leaking, field-made refrigerant joints indoors shall be tightness tested. The test method shall have a sensitivity of
   5 grams per year of refrigerant or better under a pressure of at least 0,25 times the maximum allowable pressure (>1.04MPa, max 4.15MPa). No leak shall be detected.
   2

Required tools for Installation Works

1 Phillips screw driver

6 Pipe cutter

11 Thermometer

2 Level gauge

7 Reamer

12 Megameter

3 Electric drill, hole core drill (ø70 mm) 8 Knife

13 Multimeter

4 Hexagonal wrench (4 mm)

9 Gas leak detector

14 Vacuum pump

5 Spanner

10 Measuring tape

15 Gauge manifold

Attached accessories

16 Torque wrench 18 N·m (1.8 kgf·m) 42 N·m (4.3 kgf·m) 55 N·m (5.6 kgf·m) 65 N·m (6.6 kgf·m) 100 N·m (10.2 kgf·m)

No. Installation plate
1

Accessories part

105mm TO PIPE HOLE CENTER
PIPE HOLE CENTER

LIQUID

GAS

105 mm
105mm TO PIPE HOLE CENTER
PIPE HOLE CENTER

Qty. No.

Accessories part

1

5 Remote control holder

Qty.
1

2 Installation plate fixing screw 3 Remote Control 4 Battery

5

6

Remote control holder fixing screw

2

1

Applicable piping kit

Piping size

Gas

Liquid

CZ-3F5, 7BP

9.52 mm (3/8″) 6.35 mm (1/4″)

2

CZ-4F5, 7, 10BP

12.7 mm (1/2″) 6.35 mm (1/4″)

CZ-52F5, 7, 10BP

15.88 mm (5/8″) 6.35 mm (1/4″)

SELECT THE BEST LOCATION

INDOOR UNIT
Do not install the unit in excessive oil fume area such as kitchen, workshop and etc.
There should not be any heat source or steam near the unit. There should not be any obstacles blocking the air circulation. A place where air circulation in the room is good. A place where drainage can be easily done. A place where noise prevention is taken into consideration. Do not install the unit near the door way. Ensure the spaces indicated by arrows from the wall, ceiling,
fence or other obstacles. Indoor unit of this air conditioner shall be installed in a height
of at least 1.8 m.

OUTDOOR UNIT
If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed.
There should not be any animal or plant which could be affected by hot air discharged.
Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles.
Do not place any obstacles which may cause a short circuit of the discharged air.
If piping length is over the [piping length for additional gas], additional refrigerant should be added as shown in the (Table A).

Table A

Model
RU9 LU9 PU9 QU9
RU12 LU12 PU12 QU12
RU18 LU18 PU18 QU18

Capacity W
(HP)

Piping size Gas Liquid

Std. Length
(m)

Max. Elevation
(m)

Min. Piping Length
(m)

Max. Piping Length
(m)

Additional Refrigerant
(g/m)

Piping Length for add. gas
(m)

Max. Refrigerant
Charge (kg)

Amin (m²)

1.0HP

15

3

20

10

9.52 mm (3/8″)

1.5HP

6.35 mm (1/4″)

5

15

3

20

10

7.5

0.54 Not applicable (*)

7.5

0.58 Not applicable (*)

2.0HP

12.7 mm (1/2″)

20

3

30

15

10

0.98 Not applicable (*)

Example: For RU9*** If the unit is installed at 10 m distance, the quantity of additional refrigerant should be => 10 m (distance) – 7.5 m (piping length for additional gas) => 2.5 m => 2.5 m x 10 g/m (additional Refrigerant) => 25 g

Amin = (mc / (2.5 x (LFL)(5/4) x h0)) ² ** not less than safety factor margin
Amin = Required minimum room area, in m² mc = Refrigerant charge in appliance, in kg LFL = Lower flammability limit (0.307 kg/m³) h0 = Installation height of the appliance : (1.8 m for wall mounted) SF = Safety factor with a value of 0.75

(*)=> Systems with total refrigerant charge, mc lower than 1.84 kg are not subjected to any room area requirements.

** The required minimum room area, shall also be governed by the safety factor margin formula below :

Amin = mc / (SF x LFL x h0 )

The higher value shall be taken when determining the room area.

6

CAUTION
1. General
· Must ensure the installation of pipe-work shall be kept to a minimum. Avoid use dented pipe and do not allow acute bending. · Must ensure that pipe-work shall be protected from physical damage. · Must comply with national gas regulations, state municipal rules and legislation.
Notify relevant authorities in accordance with all applicable regulations.
· Must ensure mechanical connections be accessible for maintenance purposes. · In cases that require mechanical ventilation, ventilation openings shall be kept clear of obstruction. · When disposal of the product, do follow to the precautions in #11 and comply with national regulations. · In case of field charge, the effect on refrigerant charge caused by the different pipe length has to be quantified, measured and
labelled. Always contact to local municipal offices for proper handling.
· Ensure the actual refrigerant charge is in accordance with the room size within which the refrigerant containing parts are installed. · Ensure refrigerant charge not to leak. · Wear appropriate protective equipment, including respiratory protection, as conditions warrant. · Keep all sources of ignition and hot metal surfaces away.
2. Servicing
2-1. Qualification of workers
· Any qualified person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate
from an industry-accredited assessment authority, which authorizes their competence to handle refrigerants safely in accordance with an industry recognized assessment specification.
· Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring
the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants.
· Servicing shall be performed only as recommended by the manufacturer. · The system is inspected, regularly supervised and maintained by a trained and certified service personnel who is employed by
the person user or party responsible.
2-2. Checks to the area
· Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of
ignition is minimised. For repair to the refrigerating system, the precautions in #2-3 to #2-7 must be followed before conducting work on the system.
2-3. Work procedure
· Work shall be undertaken under a controlled procedure so as to minimize the risk of a flammable gas or vapour being present
while the work is being performed.
2-4. General work area
· All maintenance staff and others working in the local area shall be instructed and supervised on the nature of work being
carried out.
· Avoid working in confined spaces. Always ensure away from source, at least 2 meter of safety distance, or zoning of free
space area of at least 2 meter in radius.
2-5. Checking for presence of refrigerant
· The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware
of potentially flammable atmospheres.
· Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants, i.e. non sparking,
adequately sealed or intrinsically safe.
· In case of leakage/spillage happened, immediately ventilate area and stay upwind and away from spill/release. · In case of leakage/spillage happened, do notify persons down wind of the leaking/spill, isolate immediate hazard area and
keep unauthorized personnel out.
2-6. Presence of fire extinguisher
· If any hot work is to be conducted on the refrigerating equipment or any associated parts, appropriate fire extinguishing
equipment shall be available at hand.
· Have a dry powder or CO2 fire extinguisher adjacent to the charging area.
2-7. No ignition sources
· No person carrying out work in relation to a refrigerating system which involves exposing any pipe work that contains or
has contained flammable refrigerant shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. He/She must not be smoking when carrying out such work.
· All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation,
repairing, removing and disposal, during which flammable refrigerant can possibly be released to the surrounding space.
· Prior to work taking place, the area around the equipment is to be surveyed to make sure that there are no flammable hazards
or ignition risks.
· “No Smoking” signs shall be displayed.
2-8. Ventilated area
· Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. · A degree of ventilation shall continue during the period that the work is carried out. · The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.
2-9. Checks to the refrigerating equipment
· Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. · At all times the manufacturer’s maintenance and service guidelines shall be followed. · If in doubt consult the manufacturer’s technical department for assistance. · The following checks shall be applied to installations using flammable refrigerants.
– The actual refrigerant charge is in accordance with the room size within which the refrigerant containing parts are installed. – The ventilation machinery and outlets are operating adequately and are not obstructed. – If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant. – Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected. – Refrigerating pipe or components are installed in a position where they are unlikely to be exposed to any substance which may
corroded refrigerant containing components, unless the components are constructed of materials which are inherently resistant to being corroded or are properly protected against being so corroded.
3

Indoor/Outdoor Unit Installation Diagram

Piping direction
Right Right Rear Right Left bottom Rear

(Front side)
Left Left bottom

Attention not to bend up drain hose

(*)

Installation parts you should purchase ( )

6550 mmmm or mmoorree

50 mm or more

(Left and right are identical)

Insulation of piping connections
· Carry out insulation after
checking for gas leaks and secure with vinyl tape.
Vinyl tape

Attaching the remote control holder to the wall Remote control holder fixing screws 6

Remote control 3

Remote control holder 5

It is advisable to avoid more than 2 blockage directions. For better ventilation multiple-outdoor installation, please consult authorized dealer/specialist.

· This illustration is for explanation
purposes only. The indoor unit will actually face a different way.

( * )

If holder at the rear of chassis (Refer column ” 4 Indoor Unit

Installation” ) need to be used

to prop up the unit, this distance

shall be 65 mm or more.

or1m00ormem 100o0r mmmore

or10m0ormem

Installation plate 1
Bushing-Sleeve ( ) Sleeve ( )
Putty ( ) (Gum Type Sealer)
Bend the pipe as closely on the wall as possible, but be careful that it doesn’t break.
Power supply cord ( )
Vinyl tape (wide) ( ) · Apply after carrying
out a drainage test. · To carry out the
drainage test, remove the air filters and pour water into the heat exchanger.
Saddle ( )

or3m00orme m

Connection cable Liquid side piping ( ) Gas side piping ( ) Additional drain hose ( )
ENGLISH
ACXF60-53100 1/2
PRINTED IN MALAYSIA 7

1 SELECT THE BEST LOCATION (Refer to “Select the best location” section)

2 HOW TO FIX INSTALLATION PLATE

The mounting wall shall be strong and solid enough to prevent it from vibration.

Ceiling

33 mm

More than

(Indoor unit center position) More than

I

Indoor unit

More than

N

Wall
D

105 mm

Wall Installation plate

O

158 mm

105mm TO PIPE HOLE CENTER
PIPE HOLE CENTER

LIQUID

GAS

105mm TO PIPE HOLE CENTER
PIPE HOLE CENTER

223 mm

O

105 mm

2 Screw

For best strength of INDOOR unit installation, it is highly recommended to locate ” ” at 5 position as shown.

105 mm Measuring Tape

R

Dimension

1

2

3

4

5

6

465 mm 68 mm (*) 350 mm

415 mm

71 mm

120 mm

· The center of installation plate should be at more than 1 at right and left of the wall. · The distance from installation plate edge to ceiling should more than 2. · From installation plate center to unit’s left side is 3. · From installation plate center to unit’s right side is 4.

b · For left side piping, piping connection for liquid should be about 5 from this line.

· For left side piping, piping connection for gas should be about 6 from this line.

U

· Alternatively, liquid and gas piping connection location reference is marked on
installation plate.

1. Mount the installation plate on the wall with 5 screws or more (at least 5 screws).

(If mounting the unit on the concrete wall, consider using anchor bolts.)

N

· Always mount the installation plate horizontally by aligning the marking-off line with
the thread and using a level gauge.

Dimension 2
(*) :If holder at the rear of chassis (Refer column ” 4 Indoor Unit Installation” ) need to be used to prop up the unit, this distance shall be 83 mm or more.

2. Drill the piping plate hole with ø70 mm hole-core drill.

· Line according to the left and right side of the installation plate. The meeting point of the extended line is the center of the

I

hole. Another method is by putting measuring tape at position as shown in the diagram above. The hole center is obtained by measuring the distance namely 105 mm for left and right hole respectively.

· Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor side.

T 3 TO DRILL A HOLE IN THE WALL AND INSTALL A SLEEVE OF PIPING

1. Insert the piping sleeve to the hole. 2. Fix the bushing to the sleeve.

Wall Indoor

3. Cut the sleeve until it extrudes about 15 mm from the wall. Sleeve

Outdoor 15 mm

Approx. 5 – 7 mm

CAUTION

for tube assembly

Bushing

When the wall is hollow, please be sure to use

for tube

the sleeve for tube assembly to prevent dangers

assembly

caused by mice biting the connection cable.

ø70 mm

4. Finish by sealing the sleeve with putty or caulking compound at the final stage.

through hole

Putty or caulking compound

8

4 INDOOR UNIT INSTALLATION

he piping e piping

pull out th Piping
Intake grille

· Do not turn over the unit
without shock absorber during pull out the piping. It may cause intake grille damage.
· Use shock absorber during
pull out the piping to protect the intake grille from damage.

pull out t Piping
Shock absorber

1. FOR THE RIGHT REAR PIPING Step-1 Pull out the Indoor piping Step-2 Install the Indoor Unit Step-3 Secure the Indoor Unit

Pull out the Indoor piping Right Rear piping

Tape it with piping position as mentioned in Fig. below

Drain hose

Piping

Cover for the left piping

Right piping

Step-4

Insert the power supply cord and connection cable
· Insert the cables from bottom of the unit through the control board hole until terminal board area.

2. FOR THE RIGHT AND RIGHT BOTTOM PIPING

Step-1 Pull out the Indoor piping

Step-2 Install the Indoor Unit

Step-3 Step-4

Insert the power supply cord and connection cable
· Insert the cables from bottom of the unit through the control board hole until terminal board area.
Secure the Indoor Unit

Secure the Indoor Unit
Press the lower left and right side of the unit against the installation plate until hooks engages with their slot (sound click).
Unit’s hook Installation plate

Cover for the right piping
Cover for the bottom piping

Drain hose

Plastic ring

Cover for the bottom piping

Turn the plastic ring until it locked

Install the indoor unit
Hook the indoor unit onto the upper portion of installation plate. (Engage the indoor unit with the upper edge of the installation plate). Ensure the hooks are properly seated on the installation plate by moving it in left and right.

How to keep the cover

In case of the cover is cut, keep the cover at the rear chassis as shown in the illustration for future reinstallation.

Cover for piping

(Left, right and 2 bottom covers for piping.)

Hooks at installation plate

OR

Holder

Sleeve for piping hole
Piping

• Pull the area of orange color to release holder

Indoor unit

Drain hose

• Holder

there is an option to use the holder at the rear of chassis to prop up the indoor unit as shown in the illustration for ease of installation. Push the holder back to original position before secure the indoor unit.

Holder

• Press the area of orange color to release holder.
• Please refer column “How to take out front grille” to remove the front grille.

To take out the unit, push the marking at the bottom unit, and pull it slightly towards you to disengage the hooks from the unit.
marking

Insert the connection cable

About 70 ­ 80 mm

Connection cable

Gas side piping

Guide surface Connection cable

Liquid side piping
Drain hose 9

1 SELECT THE BEST LOCATION (Refer to “Select the best location” section)

C D

2 INSTALL THE OUTDOOR UNIT

· After selecting the best location, start installation
to Indoor/Outdoor Unit Installation Diagram.

1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm).

Make sure unit install in balance level to ensure that water flow out from unit drainage hole.

2. When installing at roof, please consider strong wind and earthquake.

A

B

Please fasten the installation stand firmly with bolt, screws or nails.

O

Model

A

B

C

D

1.0HP

474 mm 87 mm 18.5 mm 261 mm

1.5HP

570 mm 105 mm 18.5 mm 320 mm

U

2.0HP

540 mm 160 mm 18.5 mm 330 mm

3 CONNECT THE PIPING

T

Connecting The Piping to Indoor

For connection joint of all models Additional Precautions For R32 Models when connecting by flaring at indoor side

Please make flare after inserting

(locate at joint portion of tube

Ensure to do re-flaring of pipes before connecting to units to avoid leaking

D

assembly) onto the copper pipe. (In case of using long piping)

Connect the piping

· Align the center of piping and

Seal sufficiently the flare nut (both gas and liquid sides) with neutral cure (Alkoxy type) & ammonia-free silicone sealant and insulation material to avoid the gas leak caused by freezing.

sufficiently tighten the flare nut

with fingers.

O

· Further tighten the flare nut with
torque wrench in specified torque as stated in the table.

Neutral cure (Alkoxy type) & ammonia-free silicone sealant is only to be applied after pressure testing and cleaning up by following instructions

Apply neutral cure (Alkoxy type) and ammonia-free silicone sealant along the
circumference

of sealant, only to the outside of the connection.

The aim is to prevent moisture from entering

O

Spanner or

Wrench

Torque

the connection joint and possible occurrence of freezing. Curing sealant will take some time. Make sure sealant will not peel off when wrapping the insulation.

wrench

R Connecting The Piping to Outdoor

no.4

Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge.

Do not overtighten, overtightening may cause gas leakage.

Make flare after inserting the flare nut (locate at valve) onto

Piping size

Torque

the copper pipe.

6.35 mm (1/4″)

[18 N·m (1.8 kgf·m)]

Align center of piping to valve and then tighten with torque

9.52 mm (3/8″)

[42 N·m (4.3 kgf·m)]

wrench to the specified torque as stated in the table.

12.7 mm (1/2″)

[55 N·m (5.6 kgf·m)]

15.88 mm (5/8″)

[65 N·m (6.6 kgf·m)]

19.05 mm (3/4″)

[100 N·m (10.2 kgf·m)]

U 5 CONNECT THE CABLE TO THE OUTDOOR UNIT

1. Remove the control board cover from the unit by loosening the screw.

2. Connection cable between indoor unit and outdoor unit shall be approved

N

polychloroprene sheathed 4 x 1.5 mm² (1.0 ~ 1.5HP) or 4 x 2.5 mm² (2.0HP) flexible cord, type designation 60245 IEC 57 or heavier cord. Do not use joint

connection cable. Replace the wire if the existing wire (from concealed wiring,

or otherwise) is too short.

Terminals on the outdoor unit

123

I

Colour of wires

Terminal Board

1 23

Earth wire longer than others AC wires for safety reason

Holder

Terminals on the indoor unit

123

Indoor and outdoor connection cable

T

3. Secure the cable onto the control board with the holder (clamper). 4. Attach the control board cover back to the original position with screw.

5. For wire stripping and connection requirement, refer to instruction 5

of indoor unit.

· Earth wire shall be Yellow/Green (Y/G) in colour and longer than other
AC wires for safety reason.

6 PIPING INSULATION

Indoor unit
WARNING
This equipment must be properly earthed.

1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram.

Please wrap the insulated piping end to prevent water from going inside the piping.

2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using

POLY-E FOAM with thickness 6 mm or above.

12

next next

AIR PURGING METHOD IS PROHIBITED FOR R32 SYSTEM
4 AIR TIGHTNESS TEST ON THE REFRIGERATING SYSTEM

Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation.

There is no extra refrigerant in the outdoor unit for air purging.

· Before system is charged with refrigerant and before the refrigerating system is put into operation, below site test
procedure and acceptance criteria shall be verified by the certified technicians, and/or the installer.
· Be sure to check whole system for gas leakage.

Preparation (Step 1-2)

1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. During extremely cold winter, material contraction might happened, try to further tighten the 2-way, 3-way valve to ensure they are fully closed.
2. Attach the gauge manifold set correctly and tightly. Make sure that both valves of the manifold gauge (low pressure and high pressure) is in close position.

Evacuation (Step 3-4)
Tightness Test with Inert Gas
(Step 5-7)

3. Connect the center hose of the manifold gauge to a vacuum pump. 4) Turn on the power switch of the vacuum pump, then turn open the low side manifold
   gauge valve and make sure that the needle in the gauge moves from 0cmHg (0 MPa) to ­76 cmHg (­0.1 MPa) or vacuum until 500 microns is achieved. This process continues for approximately ten minutes. Then close the low side manifold gauge valve.
4. Remove the vacuum pump from the centre hose and connect the center hose to cylinder of any applicable inert gas as test gas.
5. Charge test gas into the system and wait until the pressure within the system to reach min. 1.04MPa (10.4barg).
6. Wait and monitor the pressure reading on the gauges. Check if there is any pressure drop. Waiting time depends on the size of the system.
7. If there is any pressure drop, perform step 9-12. If there is no pressure drop, perform step 13.

YES
Pressure drop? (Step 8)

Leak detection and repair (Step 9-12)

NO

9. Use Gas Leak Detector to check for leaks. Must use the detection equipment with a sensitivity of 5 grams per year of test gas or better.
10. Move the probe along the air conditioning system to check for leaks, and mark for repair.
11. Any leak detected and marked shall be repaired.
12. After repair, repeat evacuation steps 3-4 and tightness test steps 5-7. Check the pressure drop as in step 8.

Recovery of Test Gas (Step 13)
Evacuation (Step 3-4)
Open 2 and 3 valves
(Step 14-18) no.5
Complete

13. If no leak, Recover the test gas. Perform evacuation of steps 3-4. Then proceed to step 14.

Indoor unit

Liquid side Two-way valve Outdoor unit
Close

14. Disconnect the charging hose from

the service port of the 3-way valve.

15. Tighten the service port caps of the Tank

OPEN

3-way valve at a torque of 18 N·m

Cylinder

with a torque wrench. Lo
16) Remove the valve caps of both of

the 2-way valve and 3-way valve.
17) Open both of the valves, using a hexagonal wrench (4 mm).

Inert

Vacuum pump

gas

It is recommended to allow

refrigerant slowly flow into the

refrigerant system to prevent refrigerant freezing. Slightly

open 2-way valve for 5 seconds then close the valve. Repeat

this action for 3 cycles then fully open the valve.

18. Mount back the valve caps onto the 2-way valve and

the 3-way valve to complete this process.

Gas side
Three-way valve Close
Hi
CLOSE
Notes: Recommended use of any of the following leak detector, I) Universal Sniffer leak detector II) Electronic halogen leak detector III) Ultrasonic Leak Detector

CUTTING AND FLARING THE PIPING

1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe.

Improper flaring

3. Please make flare after inserting the flare nut onto the copper pipes.

Pipe

Reamer

1. To cut

Point down 2. To remove burrs

Handle

Bar

Yoke

Core

Clamp handle Red arrow mark 3. To flare

Bar 0 ­ 0.5 mm Copper pipe

Inclined Surface Cracked Uneven

damaged

thickness

When properly flared, the internal surface of the flare will evenly shine and be of even thickness. Since the flare part comes into contact with the connections, carefully check the flare finish.

13

3. FOR THE EMBEDDED PIPING Step-1 Change the drain hose position

Change the drain hose position Rear view for left piping installation

Adjust the piping slightly downwards.

Step-2

Bend the embedded piping
· Use a spring bender or equivalent to bend the piping so that the piping is not crushed.

Step-3

Pull the connection cable into Indoor Unit
· The power supply cord and indoor unit and outdoor unit connection cable can be connected without removing the front grille.

Step-4

Cut and flare the embedded piping
· When determining the dimensions of the piping, slide the unit all the way to the left on the installation plate.
· Refer to the column “Cutting and flaring the piping”.

Step-5 Install the Indoor Unit

Step-6

Connect the piping
· Please refer to “Connecting the piping” column in outdoor unit section. (Below steps are done after connecting the outdoor piping and gas-leakage confirmation.)

Step-7

Insulate and finish the piping
· Please refer to “Insulation of piping connection” column as mentioned in indoor/outdoor unit installation.

Step-8 Secure the Indoor Unit

(This can be used for left rear piping also.)

Drain cap

Drain hose

Connection cable
105mm TO PIPE HOLE CENTER
PIPE HOLE CENTER
Drain hose
· In case of left piping how to
insert the connection cable and drain hose.

Connection cable
Piping More than 950 mm Sleeve for piping hole Drain hose

45° Drain hose
Piping

Cable

(For the right piping, follow the same procedure)

· How to pull the piping and drain hose out,
in case of the embedded piping.

PVC tube for drain hose

Cable

Apply putty or caulking material to seal the wall opening.
PVC tube for drain hose (VP-20)

More than 950 mm

Connection cable
Piping

Mo4r7e0tmhamn

Drain hose from main unit

PVC tube (VP-65) for piping

and connection cable

PVC tube for drain hose (VP-30)

Piping
Indoor unit 53 mm

5 CONNECT THE CABLE TO THE INDOOR UNIT

The power supply cord, indoor and outdoor unit connection cable can be connected without removing the front grille.

1 Install the indoor unit on the installing holder that mounted on the wall.

2 Open the front panel and grille door by loosening the screw.

Front panel

3 Cable connection to the power supply through Isolating Devices (Disconnecting means).

· Connect the approved polychloroprene sheathed power supply cord

3 x 1.5 mm² (1.0 ~ 1.5HP) or 3 x 2.5 mm² (2.0HP), type designation 60245 IEC 57 or

heavier cord to the terminal board, and connect the other end of the cable to Isolating

Devices (Disconnecting means).

Grille door

· Do not use joint power supply cord. Replace the wire if the existing wire
(from concealed wiring, or otherwise) is too short.

Screw

· In unavoidable case, joining of power supply cord between isolating devices and terminal board of

air conditioner be done by using approved socket and plug rated 15/16 A (1.0 ~ 1.5HP) or 16 A (2.0HP).

Wiring work to both socket and plug must follow to national wiring standard.

Terminals on the outdoor unit

123

Colour of wires (connection cable)

Tape

Tape

Terminals on the indoor unit
(Power supply cord) Terminals on the isolating devices (Disconnecting means)

LN123 (L) (N)

Power supply cord 4

5 Connection cable

4 Bind all the power supply cord lead wire with tape and route the power supply cord via the left side escapement. 5 Connection cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed.
4 x 1.5 mm² (1.0 ~ 1.5HP) or 4 x 2.5 mm² (2.0HP), flexible cord, type designation 60245 IEC 57 or heavier cord. 6 Bind all the indoor and outdoor Connection cable with tape and route the connection cable via the right side escapement.

10

HOW TO TAKE OUT FRONT GRILLE

Please follow the steps below to take out front grille if necessary such as when installing or servicing.

1 Set the vertical airflow vane to slightly downward.

2 Slide the 2 knobs on the upside of front grille away from the center to release them.

3 Open front panel.

Front grille

4 Remove the 1 screw on the front grille as shown in the illustration.

(Move the vane to

Front panel

slightly downward)
Vane 1

3

Front grille

3

2

Screw
4

6

5 Slide the 2 knobs on the front grille to unlock position.
6 Pull the front grille towards you to remove the front grille.
When reinstalling the front grille, carry out above steps in the reverse order.

LOCK

UNLOCK

5
Knob

After sliders are slide to lock position, please confirm front grille is securely fixed by pulling the front grille towards you.

6
UNLOCK

Knob (2 location)
LOCK

5
Knob

SCREW CHASSIS TO INSTALLATION PLATE
Front grille

Fasten the chassis to the installation plate with screws (Self purchase, Screw size: M4, max. length 10 mm) to provide a neat appearance of indoor unit. Please refer column “How to take out front grille” to remove the front grille.

Installation plate

Screw (2 locations)

Screw

Chassis

AUTO SWITCH OPERATION The below operations will be performed by pressing the “AUTO” switch.

1. AUTO OPERATION MODE
The Auto operation will be activated immediately once the Auto Switch is pressed and release within 5 sec..

2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE)
The Test Run operation will be activated if the Auto Switch is pressed continuously for more than 5 sec. to below 8 sec.. A “pep” sound will occur at the fifth sec., in order to identify the starting of Test Run operation.

3. REMOTE CONTROLLER RECEIVING SOUND ON/OFF

The ON/OFF of Remote controller receiving sound can be change over by the following steps:

a) Press “AUTO” switch continuously for more than 16 sec. to below 21 sec.. A “pep”, “pep”,

“pep”, “pep” sound will occur at the sixteenth sec..

b) Press the “AC Reset” button once, “pep” sound will occur indicates that Remote controller

receiving sound setting mode is activated.

c) Press “AUTO” switch again. Everytime “AUTO” switch is pressed (within 60 sec. interval),

Remote controller receiving sound status will be reversed between ON and OFF.

Long “peep” sound indicates that Remote controller receiving sound is ON.

Short “pep” sound indicates that Remote controller receiving sound is OFF.

14

More than 700 mm
10 ± 1 mm

7 Remove the tapes and connect the power supply cord and connection cable between indoor unit and outdoor unit according to the diagram below.

Terminal Board Panel

Flip the panel down

d ef

g

ab

c

Earth Wire longer than others AC wires for safety reason

Holder

4 Left side of escapement

Power supply cord 3 x 1.5 mm² (1.0~1.5HP) or
3 x 2.5 mm² (2.0HP)

Isolating Devices

Flip the panel down until `click’ sound before connect indoor and outdoor connection cable

Panel

Earth Wire longer than others AC wires for safety reason

Holder Right side of 6 escapement Indoor & outdoor connection cable 4 x 1.5 mm² (1.0~1.5HP) or
4 x 2.5 mm² (2.0HP)
Outdoor Unit

Recommended length (mm) refer table

a 30 mm

b 30 mm

Recommended length (mm)

c

d

e

60 mm

45 mm

40 mm

f 35 mm

g 55 mm

8 Secure firmly the power supply cord and connecting cable onto the control board with the holder. Do not overtighten holder screw, as this may damage the holder.

WARNING

9 Close grille door by tighten with screw and close the front panel. Note:

This equipment must be properly earthed.

· Isolating Devices (Disconnecting means) should have minimum 3.0 mm contact gap. · Ensure the colour of wires of outdoor unit and the terminal Nos. are the same to the indoor’s respectively. · Earth wire shall be Yellow/Green (Y/G) in colour and longer than other AC wires as shown in the figure for the electrical
safety in case of the slipping out of the cord from the anchorage.

WIRE STRIPPING, CONNECTING REQUIREMENT
Wire stripping

No loose strand when inserted

Indoor/outdoor connection terminal board

5 mm or more (gap between wires)

Conductor fully inserted

Conductor over inserted

Conductor not fully inserted

WARNING

RISK OF FIRE JOINING OF WIRES MAY CAUSE OVERHEATING AND FIRE.

Do not joint wires

OR

OR

ACCEPT

PROHIBITED

PROHIBITED

Use complete wire without joining. Use approved socket and plug with earth pin.

Wire connection in this area must follow to national wiring rules.
11

CHECK THE DRAINAGE
· Open front panel and remove air filters.
(Drainage checking can be carried out without removing the front grille.)
· Pour a glass of water into the drain tray-styrofoam. · Ensure that water flows out from drain hose of the indoor unit.
EVALUATION OF THE PERFORMANCE
· Operate the unit at cooling/heating operation mode for fifteen minutes or more. · Measure the temperature of the intake and discharge air. · Ensure the difference between the intake temperature and the discharge is more than 8 °C
during Cooling operation or more than 14 °C during Heating operation.
Note:
· During winter, turn on the power supply and standby the unit for at least 15 minutes before test run.
Allow sufficient time to warm up refrigerant and prevent wrong error code judgement.

Drain tray-styrofoam Discharge air

IN CASE OF REUSING EXISTING REFRIGERANT PIPING
Observe the followings to decide reusing the existing refrigerant piping. Poor refrigerant piping could result in product failure.
· In the circumstances listed below, do not reuse any refrigerant piping. Instead, make sure to install a new piping.
– Heat insulation is not provided for either liquid-side or gas-side piping or both. – The existing refrigerant pipe has been left in an open condition. – The diameter and thickness of the existing refrigerant piping does not meet the requirement. – The piping length and elevation does not meet the requirement. Perform proper pump down before reuse piping.
· In the circumstances listed below, clean it thoroughly before reuse.
– Pump down operation cannot be performed for the existing air-conditioner. – The compressor has a failure history. – Oil color is darken. ( ASTM 4.0 and above ). – The existing air-conditioner is gas/oil heat pump type.
· Do not reuse the flare to prevent gas leak. Make sure to install a new flare. · If there is a welded part on the existing refrigerant piping, conduct a gas leak check on the welded part. · Replace deteriorated heat insulating material with a new one.
Heat insulating material is required for both liquid-side and gas-side piping.

Proper Pump Down Method

1 Operate air conditioner at cooling mode for 10 ~ 15 minutes.

2 After 10 ~ 15 minutes of pre operation, close 2 way valve. After 3 minutes, close 3 way valve.

Most Important Process Purpose: To make the oil & refrigerant mix together. They are in separated condition when air conditioner is stopped.

Mixed refrigerant & oil will be collected into outdoor unit.

3 Take out air conditioner unit.
Only very small amount of oil remain inside piping, which is acceptable.

4 Install New Refrigerant air conditioner.

CHECK ITEMS
Is there any gas leakage at flare nut connections?
Has the heat insulation been carried out at flare nut connection? Is the connection cable being fixed to terminal board firmly? Is the connection cable being clamped firmly?
Is the drainage ok? (Refer to “Check the drainage” section) Is the earth wire connection properly done?

Is the indoor unit properly hooked to the installation plate? Is the power supply voltage complied with rated value? Is there any abnormal sound? Is the cooling/heating operation normal? Is the thermostat operation normal? Is the remote control’s LCD operation normal?

ENGLISH
ACXF60-53100 2/2
PRINTED IN MALAYSIA 15

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