Hisense Air Conditioner User Manual

Hisense Air ConditionerUser Manual

Thank you very much for purchasing this Air Conditioner. Please read this use and installation instructions carefully before installing and using this appliance and keep this manual for future reference.

Safety instructions

1. To guarantee the unit work normally, please read the manual carefully before installation, and try to install strictly according to this manual.
2. Do not let air enter the refrigeration system or discharge refrigerant when moving the air conditioner.
3. Properly ground the air conditioner into the earth.
4. Check the connecting cables and pipes carefully, make sure they are correct and firm before connecting the power of the air conditioner.
5. There must be an air-break switch.
6. After installing, the consumer must operate the air conditioner correctly according to this manual, keep a suitable storage for maintenance and moving of the air conditioner in the future.
7. Fuse of indoor unit: T 3.15A 250VAC or T 5A 250VAC. Please refer to the screen printing on the circuit board for the actual parameters, which must be consistent with the parameters on the screen printing
8. For 2.5,3.5Kw models, fuse of outdoor units 15A 250VAC or T 20A 250VAC. Please refer to the screen printing on the circuit bollard for the actual parameters, which must be consistent with the parameters on the screen printing.
9. For 5.0Kw models, f use of outdoor unit: T 20A 250VAC.
10. For 7.0Kw models, fuse of outdoor unit: T 30A 250VAC.
11. The installation instructions for appliances that are intended to be permanently connected to fixed wiring, and have a leakage current that may exceed 10 mA, shall state that the installation of a residual current device (RCD) having a rated residual operating current not exceeding 30 mA is advisable.
12. Warning: Risk of electric shock can cause injury or death: Disconnect all remote electric power supplies before servicing.
13. The maximum length of the connecting pipe between the indoor unit and outdoor unit should be less than 5 meters. It will affect the efficiency of the air conditioner lithe distance longer than that length.
14. 14. This appliance is not intended for use by person (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
15.  This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
16. The batteries in remote controller must be recycled or disposed of properly. Disposal of Scrap Batteries — Please discard the batteries as sorted municipal waste at the accessible collection point.
17. lithe appliance is fixed wiring, the appliance must be fitted with means for disconnection from the supply mains having a contact separation in all poles that provide full disconnection under over voltage category III conditions, and these means must be incorporated in the fixed wiring in accordance with the wiring rules.
18. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
19. The appliance shall be installed in accordance with national wiring regulations.
20. 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.
21. The appliance shall not be installed in the laundry.
22. Regarding to installation, please refer to section “Installation instructions”.
23. Regarding to maintenance, please refer to section “Maintenance”.
24. For models using R32 refrigerant, piping connection should be conducted on outdoor side.

Preparation before use

Note:

• When charging refrigerant into the system, make sure to charge in liquid state, if the refrigerant of the appliance is R32.Otherwise, chemical composition of refrigerant (R32) inside the system may change and thus affect performance of the air conditioner.
• According to the character of of the tube is very high, so be sure to be careful when you install and repair the appliance.refrigerant (R32,the value of GWP is 675), the pressure
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
• Installation of this product must be done by experienced service technicians professional installers only in accordance with this manual.
• The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the copper tube.

Preset

Before using the air conditioner, be sure to check and preset the following.

Remote Control presetting

Each time after the remote control is replaced with new batteries or is energized, remote control auto presetting heat pump. lf the air conditioner you purchased is a Coding Only one, heat pump remote controller can also he used.

Back-light function of Remote Control(optional)

Hold down any button on remote control to activate the back light It automatically shuts off 10 seconds later.Note: Back-light is an optional function.

Auto Restart Presetting

The air conditioner has an Auto-Restart function.

Safeguarding the environment

This appliance is made of recyclable or re-usable material. Scrapping must be carried out in compliance with local waste disposal regulations. Before scrapping it, make sure to cut off the mains cord no that the appliance cannot be re-used. For more detailed information on handling and recycling this product, contact your local authorities who deal with the separate collection of rubbish or the shop where you bought the appliance.

SCRAPPING OF APPLIANCE

This appliance is marked according to the European Directive 2012/19/EC, Waste Electrical and Electronic Equipment (WEEE).This marking indicates that this product should not be disposedwith other household wastes throughout the EU. To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it responsibly to promote the sustainable reuse of material resources. To return your used device, please use the return and collection systems or contact the retailer where the product was purchased. They can take this product for environmental safe recycling.

Safety precautions

Symbols in this Use and Care Manual are interpreted as shown below.

Safety precautions

Precautions for using R32 refrigerantFor the multi system, the refrigerant refer to the multi outdoor unit. are the same as the conventional refrigerant (R22 or R410A). However, pay attention to the following points:

CAUTION

1. Transport of equipment containing flammable refrigerantsCompliance with the transport regulations
2. Marking of equipment using signsCompliance with local regulations
3. Disposal of equipment using flammable refrigerantsCompliance with national regulations
4. Storage of equipment/appliancesThe storage of equipment should be in accordance with the manufacturer’s instructions.
5. Storage of packed (unsold) equipment– Storage package protection should be constructed such that mechanical damage to the equipment inside the package will not cause a leak of the refrigerant charge.– The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations.
6. Information on servicing6.1. Checks to the areaPrior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimized. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system.6.2. Work procedureWork shall be undertaken under a controlled procedure so as to minimize the risk of flammable gas or vapour being present while the work is being performed.6.3. General work area All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out. Work in confined spaces shall be avoided.The area around the workspace shall be sectioned off. Ensure that the conditions within the area have been made safe by control of flammable material.6.4. Checking for presence of refrigerantThe 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.6.5. Presence of fire extinguisherIf any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand.Have a dry powder or CO2 fire extinguisher adjacent to the charging area.6.6. No ignition sourcesNo person carrying out work in relation to a refrigeration 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.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.6.7. Ventilated areaEnsure 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.6.8. Checks to the refrigeration equipmentWhere 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 charge size 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;– Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant containing components, unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded.6.9. Checks to electrical devicesRepair and maintenance to electrical components shall include initial safety checks and component inspection procedures.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.This shall be reported to the owner of the equipment so all parties are advised.Initial safety checks shall include:– That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking;– That there no live electrical components and wiring are exposed while charging, recovering or purging the system;– That there is continuity of earth bonding.
7. 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.
8. 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.– Other parts may result in the ignition of refrigerant in the atmosphere from a leak.
9. 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.
10. Detection of flammable refrigerants– Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks.– A halide torch (or any other detector using a naked flame) shall not be used.
11. Leak detection methodsThe following leak detection methods are deemed acceptable for systems containing flammable refrigerants:– Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need re-calibration. (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 suitable for use with most refrigerants but 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.– Oxygen free nitrogen (OFN) shall then be purged through the system both before and during the brazing process.
12. Removal and evacuationWhen 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 again 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 “flushed” with OFN to render the unit safe.This process may need to be repeated several times.Compressed air or oxygen shall not be used for this task.Flushing 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 ignition sources and there is ventilation available.
13. Charging proceduresIn 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 minimise the amount of refrigerant contained in them.– Cylinders shall be kept upright.– Ensure that the refrigeration 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 overfill the refrigeration system. Prior to recharging the system it shall be pressure tested with OFN.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.
14. DecommissioningBefore carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail.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 reclaimed 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 manufacturer’s instructions.h) Do not overfill 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 refrigeration system unless it has been cleaned and checked.
15. LabellingEquipment 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.
16. 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 is 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 shutoff valves in good working order.–  Empty 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 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. Any 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 authorises their competence to handle refrigerants safely in accordance with an industry recognised 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.–  Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.–  Appliance shall be installed, operated and stored in a room with a floor arealarger than 10 m2.–  The installation of pipe-work shall be kept to a a room with a floor area larger than 10 m2.–  The pipe-work shall be complianced with national gas regulations.–  The maximum refrigerant charge amount is 2.5 kg. The specific refrigerant charge is based on the nameplate of the outdoor unit.–  Mechanical connectors used indoors shall comply with ISO 14903. When mechanical connectors are reused indoors, sealing parts shall be renewed.–  When flared joints are reused indoors, the flare part shall be re-fabricated.–  The installation of pipe-work shall be kept to a minimum.–  Mechanical connections shall be accessible for maintenance purposes.

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

Installation instructions

Installation diagram

 

Identification of parts

Display introduction

Remote controller

How to Insert the Batteries

1. Pry open the battery cover according to the arrow direction.
2. Insert new batteries making sure that the (+) and (-) of battery are matched correctly.
3. Reattach the cover by pressing it back into position.

Storage and Tips for Using the Remote Controller

The remote controller may be stored mounted on a wall with a holder.

Note: The remote controller holder is an optional part.

Note: The shape may differ from that of the remote controller holder you have selected.

How to Use

To operate the room air conditioner, aim the remote controller to the signal receptor. The remote controller will operate the air conditioner at a distance of up to 7m when pointing at signal receptor of indoor unit.

CAUTIONSFor appropriate signal transmission between remote controller and indoor unit, keep the signal receiver away from the following items:

• Direct sunlight or other strong lights or heat
• Flat panel television screen or other electrical appliances that react to the remote controller

Additionally, the air conditioner will not operate if curtains, doors or other materials block the signals from the remote controller to the indoor unit. If the signal may not be transmitted properly, either move these materials or consult your local dealer.

Operation instructions

Operation modes

Installation instructions

Select the installation locations

Location for Installing Indoor Unit

• Where there is no obstacle near the air outlet and air can be easily blown to every corner.
• Where piping and wall hole can be easily arranged.
• Keep the required space from the unit to the ceiling and wall according to the installation diagram on previous page.
• Where the air filter can be easily removed.
• Keep the unit and remote controller 1m or more apart from television, radio etc.
• keep as far as possible from fluorescent lamps.
• Do not put anything near the air inlet to obstruct it from air absorption.
• Install on a wall that is strong enough to bear the weight of the unit.
• Install in a place that will not increase operation noise and vibration.
• Keep away from direct sunlight and heating sources. Do not place flammable materials or combustion apparatuses on top of the unit.

Location for Installing Outdoor Unit

• Where it is convenient to install and well ventilated.
• Avoid installing it where flammable gas could leak.
• Keep the required distance apart from the wall.
• The pipe length between indoor and outdoor unit should be not more than 5 meters in factory default status, but it can go up to maximum 15 meters with additional refrigerant charge.
• Keep the outdoor unit away from greasy dirt, exit.
• Avoid installing it by the roadside where there is a risk of muddy water.
• A fixed base where it is not subject to increased operation noise.
• Where there is not any blockage of the air outlet.
• Avoid installing under direct sunlight, in an aisle or sideway, or near heat sources and ventilation fans. Keep away from flammable materials, thick oil fog, and wet or uneven places.

If the height or pipe length is out of the scope of the table, please consult the dealer.

Indoor unit installation

• Decide an installing location for the mounting plate amending to the indoor unit location and piping direction.Note: it is recommended to install screw anchors for sheet rock, concrete Nock Nick and such type amt.
• Keep the mounting plate horizontal with a horizontal level or dropping line.
• Mark the center of the indoor unit on mounting plate for future reference.Note: the center oft. mounting bracket may be note. center of the indoor antra
• Tapping mounting plate to the wall with a minimum of five screws, evenly spaced to properly support indoor unit weight.

Note: The shape of your mounting plate may be different from the one above, but the installation method is similar.

Note: As the above figure shown, the six holes matched with tapping screw on the mounting plate must be used to fix the mounting plate, the others are prepared.

2. Drill a Hole for Pipe

• Decide the position of hole for pipe according to the location of mounting plate.
• Drill a hole on the wall about 50mm. The hole should tilt a little downward toward outside.
•  Install a sleeve through the wall hole to keep the wall tidy and clean.

3. Indoor Unit Pipe Installation

• Put the pipes (liquid and gas pipe) and cables through the wall hole from outside or put them through from inside after indoor pipe and cables connection complete so as to connect to outdoor unit.
• Decide whether saw the unloading piece off in accordance with the pipe direction.(as shown below)

• After connecting pipe as required, install the drain hose. Then connect the power cords. After connecting, wrap the pipes, cords and drain hose together with thermal insulation materials.
• Pipe Joints Thermal Insulation: Wrap the pipes joints with thermal insulation materials and then wrap with a vinyl tape.

• Pipes Thermal Insulation:a. Place the drain hose under the pipes.b. Insulation material uses polythene foam over 6mm in thickness.Note: Drain hose is prepared by user.

• Drain pipe should point downward for easy drain flow. Do not arrange the drain pipe twisted, sticking out or wave around, do not immerse the end of it in water.
• If an extension drain hose is connected to the drain pipe, make sure to thermal insulated when passing along the indoor unit.
• When the pipes is directed to the right, pipes, power Cord and drain pipe should be thermal insulated and fixed onto the back of the unit with a pipe fixer

Connecting of the Cable

• Indoor Unit

Connect the power cord to the indoor unit by connecting the when to the terminals on the control board individually in accordance with the outdoor unit connection.Note: For some models, it is necessary to remove the cabinet to connect to the indoor unit terminal

• Outdoor Unit

1. Remove the access door from the unit by loosening the screw. Connect the wires to the terminals on the control board individually as follows.
2. Secure the power cord onto the control board with cable clamp.
3. Reinstall the access door to the original position with the screw.
4. Use a recognized circuit breaker for 24K model between the power source and the unit. A disconnecting device to adequately disconnect all supply lines must be fitted.

Caution:

1. Never fail to have an individual power circuit specifically for the air conditioner. As for the method of wiring, refer to the circuit diagram posted on the inside of the access door.
2. Confirm that the cable thickness is as specified in the power source specification.
3. Check the wires and make sure that they are all tightly fastened after cable connection.
4. Be sure to install an earth leakage drcuit breaker in wet or moist areas.

Cable Specifications

Attention:The plug must be accessible even after the installation of the appliance in case there is a need to disconnect it. If not possible, connect appliance to a double-pole switching device with contact separation of at least 3 mm placed in an accessible position even after installation.

Wiring diagram

Warning: Before obtaining access to terminals, all supply circuits must be disconnected.Make sure that the color of the wires in the outdoor unit and terminal No. are the same as those of the indoor unit.

• For some air conditioners exported to Australia, connect the DRED device to the DRED terminal on the air conditioner.

Outdoor unit installation

1. Install Drain Port and Drain Hose (for heat-pump model only) The condensate drains from the outdoor unit when the unit operates in heating mode. In order not to disturb your neighbor and protect the environment, install a drain port and a drain hose to direct the condensate water. Just install the drain port and rubber washer to the chassis of the outdoor unit, then connect a drain hose to the port as the right figure demonstrates.
2. Install and Fix Outdoor Unit Fix with bolts and nuts tightly on a fiat and strong floor. If installed on the wall or roof, make sure to fix the supporter well to prevent it from shaking due to serious vibration or strong wind.
3. Outdoor Unit Piping Connection• Remove the valve caps from the 2-way and 3-way valve.• Connect the pipes to the 2-way and 3-way valves separately according to the required torque.
4. Outdoor Unit Cable Connection (see previous page)

Air Purging

The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the compressor. After connecting the indoor and outdoor units, release air and moisture from the refrigerant cycle using a vacuum pump, as shown below.

Note: To protect the environment, be sure not to discharge the refrigerant to the air directly.

How to Purge Air Tubes:

1. Unscrew and remove caps from 2 and 3-way valves.
2. Unscrew and remove cap from service valve.
3. Connect vacuum pump flexible hose to the service valve.
4. Start vacuum pump for 10-15 minutes until reaching a vacuum of 10 mm Hg absolutes.
5. With vacuum pump still running close the low pressure knob on vacuum pump manifold. Then stop the vacuum pump.
6. Open 2-way valve ,1/4 turn, then close it after 10 seconds. Check tightness of all joints using liquid soap or an electronic leak detector.
7. Turn 2 and 3-way valves stem to fully open the valves. Disconnect the flexible vacuum pump hose.
8. Replace and tighten all valve caps.

Maintenance

Protection

Operating condition

Operating temperature

NOTE:*Optimum performance will be achieved within these operating temperature. If air conditioner is used outside of the above conditions, the protective device may trip and stop the appliance.The temperature of some products is allowed beyond the range. In specific situation, please consult the merchant. When relative humidity is above 80%, if the air conditioner runs in COOLING or DRY mode with door or window opened for a long time, dew may drip down from the outlet.

Noise pollution

• Install the air conditioner at a place that can bear its weight in order to operate more quietly.
• Install the outdoor unit at a place where the air discharged and the operation noise would not annoy your neighbors.
• Do not place any obstacles in front of the air outlet of the outdoor unit lest it increases the noise level.

Features of protector

1. The protective device will work at following cases.

• Restarting the unit at once after operation stops or changing mode during operation, you need to wait for 3 minutes.
• Connect to power supply and turn on the unit at once, it may start 20 seconds later.

2. If all operation has stopped, press ON/OFF button again to restart, Timer should be set again if it has been canceled.

Features of HEATING mode

PreheatAt the beginning of the HEATING operation, the airflow from the indoor unit is discharged 2-5 minutes later.

DefrostIn HEATING operation the appliance will defrost (de-ice) automatically to raise efficiency.This procedure usually lasts 2-10 minutes. During defrosting, fans stop operation.After defrosting completes, it returns to HEATING mode automatically.

Note: Heating is NOT available for cooling only air conditioner models.

Troubleshooting

The following cases may not always be a malfunction, please check it before asking for service.

Hisense (Guangdong) Air Conditioning Co., Ltd.No.8 Hisense Road，Advanced ManufacturingJiangsha Demonstration Park,Jiangmen City,Guangdong Province,P.R.ChinaEMAIL: (These instructions shall also be available in an alternative format, e.g. ask a copy from the dealers).

FAQS