Airwell R410A One Way Casstte Multilingual Installation Guide

Airwell R410A One Way Casstte Multilingual Installation Guide

IMPORTANT NOTE:
Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.

Your air conditioner may be subject to any change owing to the improvement of Airwell products.

VRF series multiple air conditioning systems adopt the consistent running mode, by which, all indoor units can only be heating or refrigerating operation at the same time.

To protect the compressor, the air conditioning unit should be powered on for over 12 hours before using it. All indoor units of the same refrigerating system should use the unified power switch to ensure that all indoor units are in the state of being powered on at the same time during the operation of air conditioner.

Product Features:

1. Hanging-style installation to save space;
2. Automatic display of faults;
3. Function of central control (optional from our company).
4. The air conditioner is provided with the function of compensation for power supply. During operation, when the power supply fails emergently and resumes again, the air conditioner returns to the working condition before power failure, if provided with compensation function.
5. The operating methods and functions are same although the shapes of indoor units are different.
6. Now this indoor unit only has wired controller function,the indoor unit that has remote controller function need to set in factory especially

Operating Range of Air Conditioner

Cooling dry

| Indoor| Max.| DB:32°C| WB:23°C
Min.| DB:18°C| WB:14°C
Outdoor| Max.| DB:43°C| WB:26°C
Min.| DB:-5°C
Heating| Indoor| Max.| DB:27°C
Min.| DB:15°C
Outdoor| Max.| DB:21°C| WB:15.5°C
Min.| DB:-15°C

Warning

• 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.
• This appliance is not intended for use by persons (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.
• 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.
• The appliances are not intended to be operated by means of an external timer or separate remote-control system.
• Keep the appliance and its cord out of reach of children less than 8 years.

Parts and Functions

Safety

• If the air conditioner is transferred to a new user, this manual shall be transferred to the user, together with the conditioner.
• Before installation, be sure to read Safety Considerations in this manual for proper installation.
• The safety considerations stated below is divided into ” Warning” and ” Attention”. The matters on severe accidents caused from wrong installation, which is likely to lead to death or serious injury, are listed in ” Warning”. However, the matters listed in ” Attention” are also likely cause the severe accidents. In general, both of them are the important items related to the security, which should be strictly abided by.
• After the installation, perform test run to make sure everything is in normal conditions, and then operate and maintain the air conditioner in accordance with the User Manual. The User Manual should be delivered to the user for proper keeping.
• Airwell is not responsible for any personnel damage or equipment damage caused by improper installation, improper commissioning, unnecessary maintenance and the wrong operation which violates the instructions in this manual or industry specifications and standards.

WARNING

• Please ask the special maintenance station for installation and repair. Water leakage, electric shocks or fire accidents might be caused from improper installation if you conduct the installation by your own.
• The installation should be conducted properly according to this manual. Water leakage, electric shocks or fire accidents might be caused from improper installation.
• Please make sure to install the air conditioner on the place where can bear the weight of the air conditioner. The air conditioner can’t be installed on the grids such as the non-special metal burglar-proof net. The place with insufficient support strength might cause the dropdown of the machine, which may lead to personal injuries.
• The installation should be ensured against typhoons and earthquakes, etc. The installation unconformable to the requirements will lead to accidents due to the turnover of the machine.
• Specific cables should be used for reliable connections of the wirings. Please fix the terminal connections reliably to avoid the outside force applied on the cables from being impressed on the cables. Improper connections and fixings might lead to such accidents as heating or fire accidents.
• Correct shapes of wirings should be kept while the embossed shape is not allowed. The wirings should be reliably connected to avoid the cover and the plate of the electrical cabinet lipping the wiring. Improper installation might cause such accidents as heating or fire accidents.
• While placing or reinstalling the air conditioner, except the specific refrigerant (R410A), don’t let the air go into the refrigeration cycle system. The air in the refrigeration cycle system might lead to the cracking or personal injuries due to abnormal high pressure of the refrigeration cycle system.
• During installation, please use the accompanied spare parts or specific parts. If not, water leakage, electric shocks, fire accidents or refrigerant leakage might be caused.
• Don’t drain the water from the drainpipe to the waterspout where may exist harmful gases such as sulfureted gas to avoid the harmful gases entering into the room.
• During installation, if refrigerant leakage occurs, ventilation measures should be taken, for the refrigerant gas might generate harmful gases upon contacting the flame.
• After installation, check if any refrigerant leakage exists. If the refrigerant gas leaks in the room, such things as air blowing heaters and stoves, etc. may generate harmful gases.
• Don’t install the air conditioner at the places where the flammable gases may leak. In case the gas leakage occurs around the machine, such accidents as fire disasters may be caused.
• When installed in a smaller room, the appropriate measures must be taken to prevent the refrigerant concentration from exceeding the limit. Please contact the sales agent to contact the corresponding measures.
• Be sure to use a separate circuit to supply power. All the electrical work must be executed by the professional electrician, meanwhile met local laws and regulations and the instructions.
• The current-carrying conductor should be tightened before grounding the wire.
• Please turn off the power before touching the electronic parts.
• Do not touch the switch with wet hands to prevent electric shock.
• Please connect the remote control cable and the connection cable to no noise.

CAUTION

• The drainpipe should be properly mounted according to this manual as to ensure the smooth drainage. In addition, heat preservation should be taken to avoid condensation. Improper drainpipe mounting might cause water leakage, which will get the articles at home wet.
• The refrigerant gas pipe and liquid pipe should be heat insulated to preserve heat. For inappropriate heat insulation, the water caused from the condensation will drop to get the article at home wet.
• The air conditioner should be effectively grounded. Electric shocks may occur if the air conditioner is ungrounded or inappropriately grounded. The wire for earthing shouldn’t be connected to the connections on the gas pipe, water pipe, lightning rod or telephone.
• The breaker for electricity leakage should be mounted. If not, accidents such as electric shocks may happen.
• The installed air conditioner should be checked for electricity leakage by being powered.
• When install the remote controller, if the room has a fluorescent lamp (inverter controller or quick start mode), the signal transmission distance of the remote controller will be shortened. Please try to install the indoor unit away from the fluorescent lamp.
• If the ambient humidity bigger than 80%, when the water discharge hole be blocked or the filter becomes dirty, or airflow speed change, there maybe leads to condensing water drop down, and at the same time there maybe some drops of water spit out.

Notices during Operation

•  If abnormal phenomena (such as the smell of fire), please cut off the powerimmediatelyand contact after-sales service personnel. In this case if you continue to use the air conditioning, it will be damaged and also may cause electric shock or fire accident.
•  When remove, transfer or repair air conditioning, please contact with the after-sales servicepersonnel. Improper maintenance may cause leakage, electric shock and fire hazard.
•  Be sure to install a leakage circuit breaker and ground connection must be effective. The grounding wire can not be connected to the gas pipeline, water pipe, lightning rod or telephone ground line. Poor ground wire may cause electric shock.
•  It cannot be used for the preservation of food, livingcreature, precise instrument and artworks, etc,otherwise damage may occur.
• It is not allowed to put any heating apparatus underthe indoor units, for the heat may cause distortion ofthe units.
•  Flammable apparatus should not be placed in theplace where the air conditioner wind could reachdirectly, or incomplete burning of theapparatus may be caused.
•  Do not touch the switch with the wet hand toavoid power shock.
•  Cleaning the unit with water maycause electric shock.
•  Do not use water heater or like next to the indoorunit and the wired controller. Water/power leakage orshort circuit may happen if the steam generatingapparatus is working next to machine.
•  Stop running and switch off the manual powerswitch when cleaning the unit.
•  Check the mount table of the airconditioner for damage for a long period of operation.If placed on the damaged table, the unit maydrop down causing damage.
•  After the electrical installation, should be energized for leakage detection. When thunder, please power off and unplug the power plug. Lightning shock may cause malfunction.
•  Do not install the air conditioner in where the flammable gas may leak, to avoid fire hazard caused bygas leakage.
Notices during Operation

•  Do not put flammable spray closeto the air conditioner. Don’t inject flammable spray towards the airconditioner, which may cause fire.
•  Close the window to avoid outdoor airgetting in. Curtains or window shutters can beput down to avoid the sunshine.
•  Avoid the cold air blowing the body straightly for long time; Avoidsetting the indoor temperature too low. Otherwise it may cause uncomfortable feeland be harmful to health.
•  Do not run air conditioning when using smoked insecticide in the room. Otherwise the chemical substance may remain on the product which might endanger the health of highly allergic people.
•  Cleaning of the air filter regularly,if the filter is blocked, it will cause the cooling and heating effect poor, power consumption increased, unit malfunction and cooling operation will drip.
•  Power should be cut off when the air conditioner isleft unused for a long period. Power will be consumedif the air conditioner is not powered off. The powerswitch of the outdoor unit switch should be poweredon 12 hours in advance before operation to protectthe unit after a long period of storage.
•  The room should be ventilatedregularly. After the use of air conditioning in the room for a long time, be sure to ventilate, to prevent air circulation does not cause physical discomfort.
•  During the operation of the control unit, don’t switchoff the manual power switch and the controller can beused. Please do not press the liquid crystal zoneof controller to prevent damage.
•  Valuables and goods that must be kept dry can not be placed under the indoor unit. When the humidity exceeds 80% or the drain outlet is blocked, the indoor unit may drip and damage the goods.
•  Plants and animals should not be put to the placewhere wind of the air conditioner blows directly,otherwise damage to them may be caused.
•  It cannot be used for the preservation of food, livingcreature, precise instrument and artworks, etc,otherwise damage may occur.
•  The distance between TV, radio, audio and other equipmentsand indoor unit should be more than 1m. Otherwise it will interferethe image and cause noise.
•  3-5minute protection

To protect the unit, compressor can be actuated withat least 3-5minute delay after stopping.

•  Defrosting during heating

To improve the heating effect, the outdoor unit willperform defrosting automatically when frost appearson the outdoor unit during heating (approximately 2-10min). During defrosting, the fan of the indoor unit runsat a low speed or stops while that of the outdoor unitstops running.

•  Stopping fan rotation

The unit which stops operating will actuate the fan fora 2-8 min swing every 30-60 minutes for protectingthe unit while other indoor unit are in the operatingstate.

Maintenance

Attention

• Repair can only be performed by professional personnel.
• Before touching the connection line, all power supplies should be switched off. Only after switching off the power supply can the operator clean the air conditioner as to avoid electric shock or injury.
• When cleaning the air cleaner, make sure to use a stable platform; don’t flush the air conditioner with water, or the electric shock might be caused.

Daily Maintenance:
Clean the air cleaner &Inlet guide plate

• Don’t dismantle the air cleaner if not cleaning, orfaultsmight be caused.
• When the air conditioner operates in the environment with too much dust, clean the air conditioner more times (generallyonce every two weeks).

As shown in the drawing, draw the wind guide on both sides of the rack, with the thumb to hold downthe screen two buttons down gently pull the other side of the filter from the bayonet can be removed.

Clean the air cleaner

Cleaning
Clean the air cleaner with the dust collector or water to remove dusts.
For too much dust, use the fan or directly spray the special cookware detergent on the air inlet grid, and then clean it with water after 10 minutes. (A) remove dust with dust collector.

(B) for too much dust, use soft-hair brush and mild detergent to clean.
(C) throw off water and then dry it at cool places.

Attention

• Don’t clean it with hot water of over 50°C to avoid fading or distortion.
• Don’t dry it on the fire, or the cleaner might cause fire.

Install the air cleaner & Inlet guide plate 

1. Install the air cleaner: The method is contrary to the method ofremoving the dust screen.
2. Install the Inlet guide plate: As shown below, the rack on the return air guide plate is inserted into the gear box.

Cleaning the air outlet port and the shell

Attention

• Don’t use gasoline, benzene, diluents, polishing powder or liquid insecticide to clean them.
• Do not clean them with hot water of above 50°C to avoid fading or distorting.
• Wipe them with soft dry cloth.
• Water or neutral dry cleanser is recommended if the dust cannot be removed.
• The Wind Deflector can be dismantled to clean.

Attention

Do not wipe the wind deflector with water forcibly to avoid the floss falling off.

Maintenance before and after Operating Season

Before Operating Season:

1. Please make the following checkup:

   • There is no blockage in inlet port and outlet port of outdoor and indoor units.
   • The ground line and the wiring are in the proper state.
     If abnormal condition occurs, consult the after-service personnel.

2. Clean the air cleaner and the shell.

   • After cleaning, the air cleaner must be mounted.

3. Switch it on to the power.

   • After cleaning, the air cleaner must be mounted.

After Operating Season:

1. In sunny days, blowing operation can be performed for half a day to make the inside of machine dry.
2. Switch it off.
   • Electrical power should be cut down to economize electricity, or the machine will still consume power.
3. Clean the air cleaner and the shell.
   • Air cleaner and shell must be mounted after cleaning. For cleaning details, refer to Maintenance.

Fault Checkup

Please check the following when consigning repair service:

Water flow sound

| Water flow sound can be heard when starting operation, during operation or immediately after stopping operation. When it starts to work for 2-3 minutes, the sound may become louder, which is the flowing sound of refrigerant or the draining sound of condensed water.

Cracking sound

| During operation, the air conditioner may make the cracking sound, which is caused from the temperature changes or the slight dilation of heat exchanger.
Terrible smell in outlet air| The terrible smell, caused from walls, carpet, furniture, clothing, cigarette and cosmetics, attaches on the conditioner.
Flashing operating indicator| When switching it on again after power failure, turn on the manual power switch and the operating indicator flashes.

Awaiting indication

| It displays the awaiting indication as it fails to perform refrigerating operation while other indoor units are in heating operation. When the operator set it to the refrigerating or heating mode and the operation is opposite to the setting, it displays the awaiting indication.

Sound in shutdown indoor unit or white steam or cold air

| To prevent oil and refrigerant from blocking the shutdown indoor units, refrigerant flows in the short time and make the sounds of refrigerant flowing. Otherwise, when other indoor units performs heating operation, white steam may occur; during refrigerating operation, cold air may appear.
Clicking sound when switching the air condition on| When the conditioner is powered on, the sound is made due to the resetting of the expansion valve.
Please make another check.| Start or stop working automatically| Check if it is in the state of Timer-ON and Timer-OFF.
Failure to work

| Check if there is a power failure.

Check if the manual power switch is turned off.

Check if the supply fuse and breaker are disconnected. Check if the protective unit is working.

Check if refrigerating and heating functions are selected simultaneously with the awaiting indication on line control.

Bad cooling & heating effects| Check if air intake port and air outlet port of outdoor units are blocked. Check if the door and windows are open.

Check if the filtering screen of air cleaner is blocked with sludge or dust. Check if the setting of wind quantity is at low wind.

Check if the setting of operation is at the Fan Operation state. Check if the temperature setting is proper.

Under the following circumstances, immediately stop the operation, disconnect the manual supply switch and contact the after-service personnel.

• When buttons are inflexible actuated;
• When fuse and breaker have been burnt over and over;
• When there are foreign objects and water in the refrigerator;
• When it cannot still be operated after removing the operation of protective unit;
• When other abnormal conditions occur.

Installation Procedures

Before installation

• Do not throw away the included parts before installation.
• Determine the handling route from the unit to the installation location
• Before moving the unit to the installation position, do not remove the packaging, had to remove the packaging, with a soft material or protective plate with a rope to lift the unit, so as not to damage the unit or wipe scratches.
• After the unit is moved into the installation, please use the package to protect the unit from damage.

The standard attached accessories of the units of this series refer to the packing list; prepare other accessories according to the requirements of the local installation point of our company.
Indoor units should be installed in places with the environment of even circulation of cool and warm blows. The following places should be avoided.

• places with high salinity (beach), high sulfureted gas(such as the thermal spring regions where copper tubes and soft soldering are easy to be eroded), much oil(including mechanical oil) and steam; places where organic substance solvent is used; where special spray is frequently used;
• places where machines generate the high frequency electromagnetic wave (abnormal condition will appear in the control system);
• places where there is high humidity exists near the door or windows (dew is easily formed).

Warning:
protect the machine from gales or earthquake, make the installation according to the regulations. Improper installation will cause accidents due to the overturn of the air conditioner.

Select the following places to install indoor units.

1. where there is enough room for the machine above the ceiling;
2. where the drainpipes can be well arranged;
3. where the distance between the air outlet port of the machine and the floor is not more than 2.7m;
4. where air inlet & outlet of the indoor units are not blocked;
5. where it is hard enough to bear the weight of the unit;
6. where there are no television, piano and other valuables under the indoor units as to avoid condensate dropping down, causing damage.
7. Where it is over 1m away from the television and radio as to avoid the disturbance from television and radio.
8. Select the indoor unit around (such as the ceiling of the installation of indoor units sandwich) dry bulb temperature below 30°C and relative humidity below 80% of the place. If the unit is running in a high humidity environment above the above conditions, there may be water drops. Please add 10 ~ 20mm insulation material (foamed polyethylene or equivalent) to the unit as well as piping and drain. When the insulation material exceeds 10mm, please press fit into the ceiling opening.
9. The indoor unit is not affected by external invasions. Return air is not recommended at the door, window, if there is no choice to keep closed, off the window, while saving energy can effectively reduce the air conditioning operation exception.

Installation Space

Ensure the required space for installation and maintenance (refer to the following drawings).
The installation height should be kept within 2.7m.
When the height of the ceiling exceeds 2.7m, the warm air is hard to blow to the ground.

Location Relationship among Ceiling Hole, Unit and Hoisting Studs

Note:
Before suspending the indoor unit, select the installation location according to the piping and wiring in the ceiling, and determine the lead direction of the piping. Prepare all pipes (refrigerator and drainage) and wiring (connection line for remote control and connection line of indoor units and outdoor units) connected to indoor units before suspending the indoor unit so as to make the connections right after the installation.

• In the situation with the ceiling, before suspending the unit, set refrigerant pipe, drainpipe, connection line in the room, lead wire of line control to the locations of piping and wiring.
• Confirm the size of the indoor unit and fix it according to the requirements in the manual.

Ceiling Hole & Reinforcement

1. Cut and withdraw the foundation of ceiling according to the size of indoor unit.
2. After cutting an appropriate hole, reinforce the cutting area on the foundation of indoor unit, and append the rim to the ceiling to secure its foundation. In order to prevent the ceiling from vibrating, it is vital to reinforce the ceiling foundation and ensure the original levelness of the ceiling.

Hoisting Stud Installation

• To support the weight of the unit, use barb bolts in the situation with the ceiling. In the situation with the new ceiling, use inlaid bolts, embedded bolts or other parts provided on site. Before proceeding the installation, adjust the gap between the bolts and the ceiling.
• Use four M10 hoisting studs (provided on site) (when the height of the hoisting stud exceeds 0.9m, M10 studs should be used.). The gaps should be kept according to the overall drawing of the air conditioner. Make the installation according to regulations for various building structures as to ensure the safety. Use the level meter to perform the parallel installation.

Ceiling Suspending

Situation with New Ceiling

1. Install the indoor unit temporarily: attach the hoisting foot to hoisting stud. Make sure that nuts and washers should be used at two ends of the foot to secure the foot.
2. For the size of the ceiling hole, please refer to the schematic drawing at the previous page.
3. Adjust the unit to the proper installation location.
4. Check if the unit is in the horizontal level: The indoor unit is equipped with a built-in drainage pump and a floater switch. Check if the 4 angles of the unit are in the horizontal level with the water level or the polythene tube with water, as shown in the figure,taking only one indoor unit as an example. If the unit inclines opposite to the direction of condensate flow, the floater switch might have faults, causing water dropping. (When lifting can be tilted to the drain, the long side of the horizontal height difference 0 ~ 10mm.)
5. Tighten the nut on the washer.
6. Remove the mounting cardboard.

Situation with Original Ceiling

1. Install the indoor unit temporarily: attach the hoisting foot to hoisting stud. Make sure that nuts and washers (provided on site) should be used at two ends of the foot to secure the foot.
2. Adjust the height and location of the unit.
3. Perform Step 4 and 5 in Situation with New Ceiling.

Preparation of Decorated Board

• Don’t put the decorated board downward to the floor. Putting it against the wall or on the extrusive objects is not allowed.
• Don’t touch the wind deflector or apply force on it, or the wind deflector will have faults.

1. Check the level of the indoor unit with a flat or filled polyethylene pipe and check that the size of the ceiling hole is correct. Remove the horizontal gauges before installing the trim panels.
2. Fix the screws so that the height difference between the two sides of the indoor unit is less than 5mm.

The installation of the decorative panel in the indoor unit body

• Install the panel before the need to remove the return air guide, the method at the same time hold down the two ends of the button, slowly even pull the guide plate, remove the appropriate place to prevent damage.

• Install the panel in the direction of the illustration to ensure that the panel inlet and outlet are corresponding to the inlet and outlet of the machine.

• Install the two claws into the snap and secure with the screws. (Screw hole position as shown, hidden parts have been hidden).
  

Decorative panels of the line

• Connect the connector on the right side of the trim panel to the stepped motor wire (10-pin)
• Connect the connector on the left side of the trim panel to the stepped motor wire (5-pin)
• Connect the connector of the lamp panel mounted on the trim panel(9-pin)
• Connect the communication cable, the power cord, and use the controller to check whether the connection is correct, make sure the machine can be installed after the normal operation of the filter, the return air guide back.

Caution:

• Improper tightening of bolts would lead to the faults shown in the following figure.
  

• After tightening the bolts, if there is a clearance between the ceiling and the trim panel, please readjust the height of the indoor unit.
  

Drainpipes

Requirements:

• The drainpipe of the indoor unit should be heat-insulated.
• Heat insulation should be treated for the connection with the indoor unit. Improper heat insulation may cause condensing.
• The drainpipe with the down gradient of over 1/100 can’t be in the S shape, or abnormal sound can be caused.
• The horizon length of the drainpipe should be kept with 20m. Under the condition of long pipes, supports can be provided every 1.5~2m as to avoid unevenness.
• The central piping should be connected according the following drawing.
• Take care not to apply external force on the connection of the drainpipes.

Piping Materials & Heat Insulating Materials

As to prevent condensation, heat insulating treatment should be performed. The heat insulating treatment for piping should be done respectively.

Hose

The attached hoses can be used to adjust the eccentricity and angle of the hard PVC tube.
Stretch the hose directly to make connections as to avoid distortion. The soft end of the hose should be positioned with a clamp.

The hose should be used in the horizon direction.

Heat Insulating Treatment:

Wrap the connection between the clamp and the root segment of the indoor unit without any gap with heat insulating materials as shown in the drawing.

Lifting Drainpipe

The drainpipe can be lifted 450mm.
When the down gradient of the drainpipe can’t be ensured, after upright lifting, the drainpipe is in the down slope.

Confirming Drainage

The drainage should be confirmed during the test run to make sure that there is leakage at the connection.
The confirmation of drainage should be also performed during the installation in the winter season.
After mounting the electrical system, do cooling operation and meanwhile add water and check.Fill 600cc water with a hose from the injection nozzle. Add the water slowly. Don’t add water to the motor of the drainage pump.

Confirm the sound of the motor:
Confirm the sound of the motor of the drainage pump and meanwhile check the drainage.

Tubing Permissible Length & Height Difference 

Please refer to the attached manual of outdoor units.

Tubing Materials & Specifications 

Please refer to the attached manual of outdoor units.

Refrigerant Filling Amount

Add the refrigerant according to the installation instruction of outdoor unit. The addition of R410A refrigerant must be performed with a measure gage to ensure the specified amount while compressor failure c n be caused by filling too much or little refrigerant.

Connecting Procedures of Refrigerant Tubing

Proceed the flare tube connecting operation to connect all the refrigerant tubes.

• Dual wrenches must be used in the connection of indoor unit tubing.
• Mounting torque refers to the right table

Outer Diameter of Tubing (mm)| Mounting Torque (N-m)| Increase mounting Torque (N-m)
---|---|---
Ø6.35| 11.8(1.2kgf-m)| 13.7(1.4kgf-m)
Ø9.52| 24.5(2.5kgf-m)| 29.4(3.0kgf-m)
Ø12.7| 49.0(5.0kgf-m)| 53.9(5.5kgf-m)
Ø15.88| 78.4(8.0kgf-m)| 98.0(10.0kgf-m)

Cutting and Enlarging

Cutting or enlarging pipes should be proceeded by installation personnel according to the operating criterion if the tube is too long or flare opening is broken.

Vacuumizing

Vacuumize from the stop valve of outdoor units with vacuum pump. Refrigerant sealed in indoor machine is not allowed to use for vacuumization.

Open All Valves

Open all the valves of outdoor units.
[NB: oil balancing stop valve must be shut up completely when connected one main unit.]

Checkup for Air Leakage

Check if there is any leakage at the connecting part and bonnet with hydrophone or soapsuds.

Electrical Wiring

WARNING

• Electrical construction should be made with specific mains circuit by the qualified personnel according to the installation instruction. Electric shock and fire may be caused if the capacity of power supply is not sufficient.
• During arranging the wiring layout, specified cables should be used as the mains line, which accords with the local regulations on wiring. Connecting and fastening should be performed reliably to avoid the external force of cables from transmitting to the terminals. Improper connection or fastness may lead to burning or fire accidents.
• There must be the ground connection according to the criterion. Unreliable grounding may cause electrical shocks. Do not connect the grounding line to the gas pipe, water pipe, lightening rod and telephone line.

Attention

• Only copper wire can be used. Breaker for electric leakage should be provided, or electric shock may occur.
• The wiring of the mains line is of Y type. The power plug L should be connected to the live wire and plug N connected to null wire while should be connected to the ground wire. For the type with auxiliary electrically heating function, the live wire and the null wire should not be misconnected, or the surface of electrical heating body will be electrified. If the power line is damaged, replace it by the professional personnel of the manufacturer or service center.
• The power line of indoor units should be arranged according to the installation instruction of indoor units.
• The electrical wiring should be out of contact with the high temperature sections of tubing as to avoid melting the insulating layer of cables, which may cause accidents.
• After connected to the terminal tier, the tubing should be curved into be a U-type elbow and fastened with the pressing clip.
• Controller wiring and refrigerant tubing can be arranged and fixed together.
• The machine can’t be powered on before electrical operation. Maintenance should be done while the power is shut down.
• Seal the thread hole with heat insulating materials to avoid condensation.
• Signal line and power line are separately independent, which can’t share one line. Signal line and power line spacing greater than 100mm.
• 5 butt lines (1.5mm) are equipped in the machine before delivery, which are used in connection between the valve box  and the electrical system of the machine. The detailed connection is displayed in the circuit diagram.
• The power cord must go through the wire hole from the outside into the machine, the wire holes need to be sealed with rubber ring to prevent the wear of the power line insulation sheath; the use of the process should pay attention to the protection of the power cord. Prevent sharp objects from damaging the insulation of the power cord. Damage to the power cord may cause fever, fire and other accidents.

Connecting

1. Connecting circular terminals:
   The connecting method of circular terminal is shown in the Fig. Take off the screw, connect it to the terminal tier after heading it through the ring at the end of the lead and then tighten it.

2. Connecting straight terminals:
   The connection methods for the circular terminals are shown as follows: loosen the screw before putting the line terminal into the terminal tier, tighten the screw and confirm it has been clamped by pulling the line gently.

3. Pressing connecting line
   After connecting line is completed, press the connecting line with clips which should press on the protective sleeve of the connecting line.

4. Electronic control box connection operation method
   First, remove the screw of the fixed electric control box, pull out the electric control box, and then remove the electric control box cover fixing screw, take off the electric control box cover (both hands press and hold the button at the same time). Signal line through the machine through the hole, and then through the electronic control box hole into the box body, pay attention to the separation of strength. Connect the electric control box cover and push the electric control box back to the machine. Use screws to fix.
   

Supply Wiring Drawing

Indoor units and outdoor units should be connected to the power source separately. Indoor units must share one single electrical source, but its capacity and specifications should be calculated. Indoor & outdoor units should be equipped with the power leakage breaker and the overflow breaker.

Signal Wiring Drawing

Outdoor units are of parallel connection via three lines with polarity. The main unit, central control and all indoor units are of parallel connection via two lines without polarity.
There are three connecting ways between line control and indoor units:

A. One line control controls multiple units, i.e. 2-16 indoor units, as shown in the above figure, (1-5 indoor units). The indoor unit 5 is the line- controlled main unit(directly connected to the indoor unit of line control) and others are the inecontrolled sub units. Among them, the 4 indoor unit is this unit, the 3 indoor unit is the other DC models, 1 indoor unit and 2 indoor unit are the AC models.The line control device is connected with the line-controlled main unit and DC models through three lines with polarity.Other indoor units and the main unit are connected via two lines with polarity. SW01 on the main unit of line control is set to 0 while SW01 on other sub units of line control are set to 1, 2, 3 and so  on in turn. (Please refer to the code setting)
B. One line control controls one indoor unit, as shown in the above figure(indoor unit 6-19). The indoor unit and the line control are connected via three lines with polarity.
C. Two line controls control one indoor unit, as shown in the figure (indoor unit 20). Either of the line controls can be set to be the master line control while the other is set to be the auxiliary line control. The master line control and indoor units, and the master and auxiliary line controls are connected via three lines with polarity. When the indoor units are controlled by the remote control, switch over the modes by Switching Mode of LineControlled Main Unit/ Line-Controlled Sub Units/ Remote-Controlled Types. The signal terminals needn’t to be equipped with wires and connected to the line control.

The wiring for the power line of indoor unit, the wiring between indoor and outdoor units as well as the wiring between indoor units:

Items

Total Current of

Indoor Units(A)

| Cross Section (mm2)|

Length (m)

| Rated Current of Overflow Breaker(A)| Rated current of residual Circuit Breaker(A) Ground Fault Interruptor(mA) Response time(S)| Cross Sectional Area of Signal Line
---|---|---|---|---|---
Outdoor -indoor (mm2)| Indoor -indoor (mm2)
<10| 2| 20| 20| 20 A,30 mA,0.1S or below| 2 cores×0.75-2.0mm2 shielded lin
≥10 and <15| 3.5| 25| 30| 30 A,30 mA,0.1S or below
≥15 and <22| 5.5| 30| 40| 40 A,30 mA,0.1S or below
≥22 and <27| 10| 40| 50| 50 A,30 mA,0.1S or below

• The electrical power line and signal lines must be fastened tightly.
• Every indoor unit must have the ground connection.
• The power line should be enlarged if it exceeds the permissible length.
• Shielded lays of all the indoor and outdoor units should be connected together, with the shielded lay at the side of signal lines of outdoor units grounded at one point.
• It is not permissible if the whole length of signal line exceeds 1000m.

Signal Wiring of Wired controller

• The shielding lay of the signal line must be grounded at one end.
• The total length of the signal line shall not be more than 250m.

Dipswitch Setting

Indoor Units PCB
In the following table, 1 represents ON and 0 represents OFF.
Definition principles of code switches:
SWO1 is used to set capabilities of master and slave indoor units as well as indoor unit; SW03 is used to set indoor unit address (combine original communication address and address of centralized controller).

(A) Definition and description of SW01

SW01_1

SW01_2

SW01_3

SW01_4

| Address of wire

controlled indoor unit

| [1]| [2]| [3]| [4]| Address of wire controlled indoor unit (group address)
---|---|---|---|---|---|---
0| 0| 0| 0| 0# (wire controlled master unit) (default)
0| 0| 0| 1| 1# (wire controlled slave unit)
0| 0| 1| 0| 2# (wire controlled slave unit)
0| 0| 1| 1| 3# (wire controlled slave unit)
0| 1| 0| 0| 4# (wire controlled slave unit)
0| 1| 0| 1| 5# (wire controlled slave unit)
∙∙∙| ∙∙∙| ∙∙∙| ∙∙∙| ∙∙∙
1| 1| 1| 1| 15# (wire controlled slave unit)
SW01_5

SW01_6

SW01_7

SW01_8

| Capability of indoor unit| [5]| [6]| [7]| [8]| Capability of indoor unit
0| 0| 0| 0| 0.6HP (AB05)
0| 0| 0| 1| 0.8HP (CVPA-025/022N-01M22)
0| 0| 1| 0| 1.0HP (CVPA-025/022N-01M22)
0| 0| 1| 1| 1.2HP (CVPA-035N-01M22)

(B) Definition and description of SW03

SW03_1

| Address setting mode| [1]| Address setting mode
---|---|---|---
0| Automatic setting (default)
1| Code-set address
SW03_2

~ SW03_8

| Code-set indoor unit address and centralized

controller address (Note *)

| [2]| [3]| [4]| [5]| [6]| [7]| [8]| Address of indoor unit| Address of centralized controller
0| 0| 0| 0| 0| 0| 0| 0# (Default)| 0# (Default)
0| 0| 0| 0| 0| 0| 1| 1#| 1#
0| 0| 0| 0| 0| 1| 0| 2#| 2#
…| …| …| …| …| …| …| …| …
0| 1| 1| 1| 1| 1| 1| 63#| 63#
1| 0| 0| 0| 0| 0| 0| 0#| 64#
1| 0| 0| 0| 0| 0| 1| 1#| 65#
1| 0| 0| 0| 0| 1| 0| 2#| 66#
…| …| …| …| …| …| …| …| …
1| 1| 1| 1| 1| 1| 1| 63#| 127#

*Note :**

• Set the address by code when connecting the centralized controller or gateway or charge system.
• Address of centralized controller=communication address+0 or+64. SW03 2=OFF, address of centralized controller=communication address+0=communication address SW03 2=ON, address of centralized controller=communication address+64 (applies when centralized controller is used and there are more than 64 indoor units)
• To use with 0010451181A in use, it is required to use code for address setting. Set SW031=0N and SW03 2=OFF; SW033, SW03 4, SW03_5, SW03_6, SW037 and SW03 8 are address codes which are set according to actual address.
• Address setting function of wired controller for ultrathin card machine is disnabled.

Test Run & Fault Code

Before Test Run

• Before switching it on, test the supply terminal tier (L, N terminals) and grounding points with 500V megaohm meter and check if the resistance is above 1MΩ. It can’t be operated if it is below 1MΩ.
• Connect it to the power supply of outdoor units to energize the heating belt of the compressor. To protect the compressor at startup, power it on 12 hours prior to the operation

Check if the arrangements of the drainpipe and connection line are correct.

The drainpipe shall be placed at the lower part while the connection line placed at the upper part. Heat preservation measures should be taken such as winding the drainpipe esp. in the indoor units with heating insulating materials.
The drain pipe should be made a slope type to avoid protruding at the upper part and concaving at the lower part on the way.

Checkup of Installation

• check if the mains voltage is matching
• check if there is air leakage at the piping joints
• check if the connections of mains power and indoor & outdoor units are correct
• check if the serial numbers of terminals are matching
• check if the installation place meets the requirement
• check if there is too much noise
• check if the connecting line is fastened
• check if the connectors for tubing are heat insulated
• check if the water is drained to the outside
• check if the indoor units are positioned

Ways of Test Run

Do ask the installation personnel to make a test run. Take the testing procedures according to the manual and check if the temperature regulator works properly.
When the machine fails to start due to the room temperature, the following procedures can be taken to do the compulsive running. The function is not provided for the type with remote control.

Set the wired controller to cooling/heating mode, press “ON/OFF” button for 5 seconds to enter into the compulsive cooling/heating mode. Repress “ON/OFF” button to quit the compulsive running and stop the operation of the air conditioner.

Fault Remedies

When any fault appears, consult the fault code of line control or the flashing times for LED5 of computer panel of indoor units/health lamp of receiving window of remote control and find out the faults as shown in the following table to remove all faults.

Indoor Unit Faults

Failure code at wired controller| PCB LED5(Indoor Units)/ Receiver Timer Lamp(Remote Controller)| Fault Descriptions
---|---|---
01| 1| Fault of indoor unit ambient temp. transducer TA
02| 2| Fault of indoor unit pipe temp. transducer TC1
03| 3| Fault of indoor unit pipe temp. transducer TC2
04| 4| Fault of indoor unit dual heat source temp. transducer
05| 5| Fault of indoor unit EEPROM
06| 6| Fault of communication between indoor & outdoor units
07| 7| Fault of communication between indoor unit and wired control
08| 8| Fault of indoor unit water drainage
09| 9| Fault of duplicate indoor unit address
0A| 10| Reserved
0C| 12| Fault of zero cross sing
0E| 14| Fault of DC fan
Outdoor Unit Code| 20| Corresponding faults of outdoor units

Move and scrap the air conditioning

• When moving, to disassemble and re-install the air conditioning, please contact your dealer for technical support.
• In the composition material of air conditioning, the content of lead, mercury, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers are not more than 0.1% (mass fraction) and cadmium is not more than 0.01% (mass fraction).
• Please recycle the refrigerant before scrapping, moving, setting and repairing the air conditioning; for the air conditioning scrapping, should be dealt with by the qualified enterprises.

WARNING :
The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details.

AIRWELL RESIDENTIAL SAS
10,Rue du Fort de Saint Cyr,
78180 Montigny le Bretonneux – France
www.airwell.com

References

• Airwell - Air Conditioning & Heating Solutions - Just feel well

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