AIR-CON AMXEK4H4S09 9000 btu Duct Type Indoor Unit of Multi Plus Series Instruction Manual

**AIR-CON AMXEK4H4S09 9000 btu Duct Type Indoor Unit of Multi Plus Series Instruction 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.

Alert Symbols

 : The symbol refers to a hazard which can result in severe personal injury or death.
 : The symbol refers to a hazard or an unsafe practice which may result in severe personal injury or death.
 : The symbol refers to a hazard or an unsafe practice which may result in personal injury, product or property damage.
NOTE : It refers to the remarks and instruction to the operation, maintenance, and service.

This air-conditioner should be installed properly by qualified personnel in accordance with the installation instructions provided with the unit.
Before installation, check if the voltage of the power supply at installation site is the same as the voltage shown on the nameplate.

• You must not carry on any transformation to this product, otherwise, it may cause water leakage, breakdown, short-circuit, electric shock, fire, and so on.

• Piping, welding and other such works should be carried out far away from the flammable explosive material vessels, including the air-conditioner refrigerant, to guarantee the security of the site.

• To protect the air-conditioner from heavy corrosion, avoid installing the outdoor unit where sea water can splash directly onto it or in sulphurous air near a spa. Do not install the air-conditioner where excessively high heat-generating objects are placed.

• If the supply cord is damaged, it must be replaced by the factory or its service department in case of danger.

• The place where this product is installed must have the reliable electrical grounding facility and protection. Please do not connect the grounding of this product to various kinds of air-feeding ducts, drain piping, lightning protection facility as well as other piping lines to avoid receiving an electric shock and damages caused by other factors.

• Wiring must be done by a qualified electrician. All the wiring must comply with the local electrical codes.

• Consider the capacity of the electric current of your electrical meter and socket before installation.

• The power wire where this product is installed is supposed to have the independent leakage protective device and the electric current over-load protection device which are provided for this product.

• 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.

• Means for disconnection, which can provide full disconnection in all poles, must be incorporated in the fixed wiring in accordance with the wiring rules .

• Read this manual carefully before using this air-conditioner. If you still have any difficulties or problems, consult your dealer for help.

• The air-conditioner is designed to provide you with comfortable room conditions. Use this unit only for its intended purpose as described in this instruction manual.

• Never use gasoline or other inflammable gas near the air-conditioner, which is very dangerous.

• When the air conditioner operation is abnormal, such as burnt smell, deformation, fire. smoke, and so on, it is forbidden to continue using the air conditioner, the main power switch of the air conditioner must be cut off immediately and the agent must be contacted.

• Do not turn the air-conditioner on and off from the main power switch. Use the ON/OFF operation button.

• Do not stick anything into the air inlet and air outlet of both the indoor and outdoor units. This is dangerous because the fan is rotating at a high speed.

• Do not cool or heat the room too much if babies or invalids are present.

• Details of type and rating of circuit breakers I ELB is detailed in outdoor instruction manual.

• The method of connection of the appliance to the electrical supply and interconnection of separate components is detailed in below part.

• The wiring diagram with a dear indication of the connections and wiring to external control devices and supply cord is detailed in below part. The cord of the HO7RN-F type or the electrically equivalent type must be used for power connection and interconnection between outdoor unit and indoor unit. The size of the cord is detailed in below part.

• The information of dimensions of the space necessary for correct installation of the appliance including the minimum permissible distances to adjacent structures is detailed in below part.

• The range of external static pressures for ducted appliances is detailed in below part.

• The indoor unit can only supply air to one room, it is not allowed to supply air to multiple rooms.

NOTE:
Storage condition: Temperature -13-140°F (-25-60°C) Humidity 30%-80%

Indoor Unit

1. Air inlet
2. Electric box
3. Refrigerant pipe (Liquid)
4. Refrigerant pipe (Gas)
5. Drain pipe (Connect with pump)
6. Drain pipe
7. Air outlet

Remote controller(optional)

You can control the air-conditioner with the wire remote controller or wireless remote controller. It is used for controlling power ON/OFF,setting the running mode, temperature, fan speed and other functions. There are different types of remote controllers that can be used. Operation instructions will be further specified in remote controllers manual. Please read it carefully before using this appliance and keep it for future reference.

Note: The figures are based on the external views of the standard model. Consequently. the shape may differ for the air conditioner model you have selected.

Special remarks

• 3 minutes protection after compressor stop To protect compressor, it will be continue to be off for at least 3 minutes once it has stopped.
• 5 minutes protection Compressor must run for at least 5 minutes once operational. In the 5 minutes, compressor will not stop even the room temperature reaches the setting temperature point unless you use remote controller to turn off the unit (all indoor unit can be turned off by user).
• Cooling operation The fan of the indoor unit will never stop running in cooling operation. It continues to operate even if the compressor stops working.
• Heating operation Heating capacity depends on external factors like outdoor unit temperature. Heating capacity might decrease if outdoor ambient temperature is too low.
• Anti-freezing function during cooling When the temperature of the air from the indoor outlet is too low, the unit will run for some time under the fan mode, to avoid frost or ice forming on the indoor heat exchanger.
• Cold air prevention In several minutes after the heating mode is started, the fan of the indoor unit will not run until the heat exchanger of the indoor unit reaches a certain temperature to prevent cold draft.
• Defrosting When the outdoor temperature is too low, frost or ice may form on the outdoor heat exchanger, reducing heating performance. When this happens, a defrosting system of the air conditioner will operate. At the same time the fan in the indoor unit stops (or runs at a very low speed in some cases), to prevent cold draft. After defrosting is over, the heating operation and fan speed restart.
• Blow out the survival heating air When stopping the air conditioner in normal operation, the fan motor will run with low speed for a while to blow out the residual heating air.
• Auto re-start from of Power Break When the power supply is recovered after power break, all presets are still effective and the air-conditioner will run according to the previous setting.

Troubleshooting

If the trouble persists even after checking the following, contact your dealer and inform them of the items. according to the original setting.

1. If Trouble Still Remains …
2. Unit Model Name
3. Content of Trouble
4. No Operation Check whether the SET TEMP is set at the correct temperature.
5. Not Cooling or Heating properly
   • Check for obstruction of air flow in indoor and outdoor units.
   • Check if too many heating sources are located in the room.
   • Check if the air filter is clogged with dust.
   • Check if the doors or windows are open.
   • Check if the temperature condition is not within the operation range.
6. This is Not Abnormal
   • Odour from indoor unit Unpleasant odour diffuses from indoor unit after a long period of time. Clean the air filter and panels or allow a good ventilation.
   • Sound from Deforming Parts During system start or stop, a sound might be heard. However, this is due to thermal deformation of plastic parts. It is not abnormal.
   • Steam from Outdoor Heat Exchanger During defrosting operation, ice on the outdoor heat exchanger melts resulting in steam.
   • Dew on Air Panel When the cooling operation continues for a long period of time under high humidity conditions, dew may form on the air panel, please set the appliance at high fan speed and adjust louvers to the max. angle.
   • Refrigerant Flow Sound While the system is being started or stopped, sound from the refrigerant flow may be heard.
7. Mode Interfere (Only for multi-split) For the reason that all indoor units use one outdoor unit, outdoor unit can only run with same mode (cooling or heating), so, when the mode you set is different from the mode that outdoor is running with, mode interfere occurs. Following shows the mode interfere scene.
   
   Outdoor unit always run with the mode of first indoor unit that turned on, when the setting mode of following indoor unit is interfered with it, 3 beeps would be heard, and the indoor unit interfered with the normal running units would turn off automatically.

Safety Notice

• Installation should be performed by a qualified personnel. (Improper installation may cause water leakage, electrical shock or fire.)

• Install the unit according to the instructions given in this manual. (Incomplete installation may cause water leakage, electrical shock or fire).

• Be sure to use the supplied or specified installation parts. (Use of other parts may cause the unit to get loosened, water leakage, electrical shock or fire).

• Install the air conditioner on a solid base that can support the unit weight. (An inadequate base or incomplete installation may cause injury if the unit falls off the base).

• Electrical work should be carried out in accordance with the installation manual and the local national electrical wiring rules or code of practice. (Insufficient capacity or incomplete electrical work may cause electrical shock or fire).

• Be sure to use a dedicated power circuit. (Never use a power supply shared by another appliance).

• For wiring, use a cable long enough to cover the entire distance. Do not use an extension cord.

• Do not put other loads on the power supply, use a dedicated power circuit.

• Use the specified types of wires for electrical connections between the indoor and outdoor units. (Firmly clamp the interconnecting wires so their terminals receive no external stresses).

• Incomplete connections or clamping may cause terminal overheating or fire.

• After connecting all the wires be sure to fix the cables so that they do not put undue force on the electrical covers or panels. (Install covers over the wires, incomplete cover installation may cause terminal overheating, electrical shock or fire).

• When installing or relocating the system, be sure to keep the refrigerant circuit free from air (Air in the refrigerant circuit may causes an abnormal pressure rise or rupture, resulting in injury).

• If any refrigerant has leaked out during the installation work, ventilate the room.

• After all installation is completed, check to make sure that no refrigerant is leaking out. (The refrigerant produces a toxic gas if exposed to flames).

• When carrying out piping connection, take care not to let air substances other than the specified refrigerant get into refrigeration cycle. (Otherwise, it will cause lower performance, abnormal high pressure in the refrigeration cycle, explosion and injury).

• Make sure that the installation is properly grounded. Do not ground the unit to a utility pipe, lightning arrester, or telephone grounding. Incomplete grounding may cause electrical shock. (A high surge current from lightning or other sources may cause damage to the air conditioner).

• An earth leakage circuit breaker may be required depending on the site condition to prevent electrical shock.

• Disconnect the power supply before wiring, piping, or checking the unit.

• When moving the indoor unit and outdoor unit, please be careful, do not make the outdoor unit incline over 45 degree. Pay attention to the sharp edges of the air conditioner to avoid any injury.

• During remote controller installation, ensure that the length of the wire between the indoor unit and remote controller is within 131 ft. (40m).

• Do not install the air conditioner in a place where there is danger of exposure to inflammable gas leakage. (If the gas leaks and builds up around the unit, it may catch fire).

• Establish drain piping according to the instructions in this manual. (Inadequate piping may cause flooding).

• Tighten the flare nut according to the specifications with a torque wrench. (If the flare nut is tightened beyond specified torque, the flare nut may crack after a long time and cause refrigerant leakage).

The Tools and Instruments for Installation

The Installation of the Indoor Unit

During installation, do not damage the insulation material on the surface of the indoor unit.

The Initial Check

• When moving the unit after unpacking, make sure to lift it by holding its lifting lugs. Do not exert any pressure on other parts, especially the refrigerant piping, drain piping and flange parts.
• Wear protective gears when installing the unit.

1. Reserve necessary maintenance port when the ceiling is not detachable.
2. The location of the maintenance port should ensures remove electric box cover and internal components are all easy to perform.
   9K-18K

Fig. 3.1.1 [unit: in. (mm)]

• Optimum air distribution is ensured.
• The air passage is not blocked.
• Condensate can drain properly.
• The ceiling is strong enough to bear the weight of the indoor unit.
• A false ceiling does not seem to be at an incline.
• Sufficient clearance for maintenance and servicing is ensured (See Fig.3.1.1 )
• Piping between the indoor and outdoor units is within the allowable limits.(refer to the installation of the outdoor unit )
• The indoor unit, outdoor unit, power supply wiring and transmission wiring must be kept at least 3.3ft.(1 m) away from televisions and radio, this prevents image interference and noise in electrical appliances. (Noise may be generated depending on the conditions under which the electric wave is generated, even if a one-meter allowance is maintained.)
• Do not install the indoor unit in a machinery shop or kitchen where vapor from oil or its mist flows to the indoor unit. The oil will deposit on the heat exchanger, thereby reducing the performance of the indoor unit, and may deform and in the worst case, break the plastic parts of the indoor unit.
• Use suspension bolts to install the unit, check whether or not the ceiling is strong enough to support the weight of the unit. If there is a risk that the ceiling is not strong enough, reinforce the ceiling before installing the unit. For bottom intake, replace the chamber lid and the intake-side flange in the procedure listed in below figures. (1) Remove the intake-side flange, then remove the chamber lid. Refer to Fig. 3.1.2 for the directions. (2) Reattach the removed chamber lid in the orientation shown in Fig. 3.1.3, reattach the removed intake-side flange in the orientation as shown in Fig. 3.1.3.

Installation

Suspension bolts

1. Consider the pipe direction, wiring and maintenance carefully, and choose the proper direction and location for installation.
2. Install the suspension bolts as shown in Fig. 3.2.1 below.

Fig. 3.2.1 Fixing the suspension bolts

The position of the suspension bolts and the pipes

1. Mark the positions of the suspension bolts, the positions of the refrigerant pipes and the drain pipes.
2. The dimension are shown below.

Install the Indoor unit.

The installation of the indoor unit is shown in Fig. 3.4.

Fig. 3.4 The installation of the indoor unit

How to 8x the suspension bolts and the nuts As shown in the figures 3.5. the nuts are fixed four bolts.

Fig. 3.5 Suspension bolts and nuts

Install the indoor unit

• As shown in the following figure, place the left hanger bracket on the nuts and washers of the suspension belts.
• Make sure that the left hanger bracket has been fixed on the nuts and washers securely, install the right hanger bracket suspension hook on the nuts and washers. (When installing the indoor unit, you can slightly remove the suspension bolts.)

Adjusting of the unit level

1. Check to ensure that the foundation is flat, taking Into account the maximum foundation gradient.

2. The unit should be Installed that the drainage side is slightly (0 in.- 3/16 in. (Omm-5mm)) lower than other sides for adequate drainage.

3. After the adjustment, tighten the nuts and swear the thread locker on the suspension to prevent the nuts from loosening.

4. During the installation, please cover the unit with the plastic cloth to keep it clean.

5. Make sure that the unit is installed level by using a level or a plastic tube filled with water in instead of a level, adjust the top surface of the unit to the surface of the water at both ends of the plastic tube and adjust the unit horizontally.(one thing to watch out for in particular is if it is installed so that the slope is not in the direction of the drain piping, as this might cause leaking.)

Installing the duct

• Make sure the external static pressure of the unit is within the range.
• Connect the duct and intake-side flange.
• Connect the duct and outlet-side flange.
• The connection of indoor unit and air duct must be well sealed and kept warm with insulation material.

Refrigerant Pipe

Use the refrigerant according to outdoor nameplate. When carrying on the leakage check and test, do not mix in the oxygen, the acetylene and flammable and the virulent gas, for these gases are quite dangerous, and may possibly cause explosion. It is suggested that the nitrogen be used to perform these experiments.

The Pipe Material

1. Prepare the copper pipe on the spot.
2. Choose dustless, non-humid, clean copper pipe. Before installing the pipe, use nitrogen or dry air to blow away the tube dust and impurity.
3. Choose the copper pipe according to Fig. 4.2.

The Connection of the Pipe

1. The connection positions of the pipe are shown in Fig. 4.1 and Fig. 4.2.

Fig. 4.1 The connection position of the pipe

Fig. 4.2 The pipe diameter

2. As shown Fig. 4.3 Screw up the nuts with 2 spanners.

Fig. 4.3 Tightening torque for the nut

3. After finishing connecting the refrigerant pipes, keep it warm with the insulation material.

Fig. 4.4 Piping insulation procedure

  * The pipe go through the hole with the seal.
  * Do not put the pipes on the floor directly.  

Drain piping

Install the drain piping

• Make sure the drain works properly .
• Prepare polyvinyl chloride pipe with a 1-1/4 in.(32mm) outer diameter.
• The diameter of drain pipe connection hole should be same as that of the drain pipe.
• Keep the drain pipe short and sloping down wards at a gradient of at least 1/100 to prevent air pockets from forming.

NOTE
When the relative humidity of inlet or ambient air exceeds 80%,apply an (field-supplied) auxiliary drain pan beneath the indoor unit as shown below.

Water accumulating in the drain piping can cause the drain to clog.

• To keep the drain tube from sagging, space hanging wires every 3.3 ft. (1m) to 5.0 ft. (1.5m).
• Use the drain hose and the clamp. Insert the drain hose fully into the drain socket and firmly tighten the drain hose and warm-keeping material with the damp.
• The two areas below should be insulated because condensation may happen there causing water leakage.
• Drain piping passing indoors
• Drain sockets.
• Referring the figure below, insulate the drain socket and drain hose using the included large sealing pad.

Drain piping connections

• Do not connect the drain pipes directly to sewage pipes to avoid ammonia odour. The ammonia in the sewage might enter the indoor unit through the drain pipes and corrode the heat exchanger.
• Do not twist or bend the drain hose, doing so applies excessive force applied on it and may also cause leakage.
• After piping work is finished, check if drainage flows smoothly.
• Gradually pour approximately 1000 cc of water from the outlet hole into the drain pan to check drainage flow.
• Check the drainage as shown below:

Electrical Wiring

General Check

• When clamping the wiring, use the included clamping material to prevent external pressure being exerted on the wiring connections and clamp firmly.

• While performing wiring work, make sure the wiring is proper and does not cause the control box lid to stick up, then dose the cover firmly. When attaching the control lid, make sure you do not pinch any wires.

• Outside the indoor unit and outdoor unit, separate the weak wiring (remote controller and transmission wiring) and strong wiring (ground and power supply wiring) at least 2 in. (50mm) so that they do not pass through the same place together. Proximity may cause electrical interference malfunction and breakage.

• If the fuses bum up, please call the authorized service dealer. Please do not replace it by yourself, as it may result in accident or electric shod(

  1. Remove the screws and the electric box cover as shown in the Fig. 6.1.
  2. Pass connection cable and wired controller cable through the two holes on the conduit panel.
  3. Fasten the conduit connection to the conduit panel using the lock nut.
  4. Connect the connection cable and wired controller cable to the terminal.
  5. Tie the cable in the electric box with the damp tightly.
  6. After completing the wiring, seal the wiring hole with the sealing material (with the lid) to prevent the condensation and insects entering the control box.
  7. Put the electric box cover back after completion of the work.

Electrical Wiring Diagram

Change of Static Pressure

The static pressure can be freely adjusted by using specific wire remote controller.

Static pressure setting:

1. Hold down both”MODE”button and”ADD.FUNC.”button for 3 seconds, symbol , and parameter code blinking at the same time.
2. Press” “button to adjust parameter number until display “17”, and press “ENTER”button to entering system parameter adaption state, symbol stop blinking.
3. Select desired parameter code 10 by pressing” “button, and press “ENTER” button to confirm.
4. Select desired function code to rewrite the parameter values by pressing “ “button , and press “ENTER” button to confirm.
5. Press “ON/OFF”button or “CANCEL”button to quit.

If you still have any trouble, please contact local technical service center of our company for further information.

Electrical Installation

• Use an ELB (Electric Leakage Breaker). If not used, it will cause an electric shock or a fire.

• Do not operate the system until all the check points have been cleared. (A) Check to ensure that the insulation resistance is more than 2M0, by measuring the resistance between ground and the terminal of the electrical parts. If not, do not operate the system until the electrical leakage is found and repaired.
  (B) Check to ensure that the stop valves of the outdoor unit are fully opened and then start the system.

• Pay attention to the following items while the system is running.
  (A) Do not touch any of the parts by hand at the discharge gas side, since the compressor chamber and the pipes at the discharge side are heated higher than 194°F(90°C).
  (B) DO NOT PUSH THE BUTTON OF THE MAGNETIC SWITCH (ES). It will cause a serious accident. Model Capacity(Btu/h)| Transmitting Cable Size
  ---|---
  91K-18K| 4×16AWG

Note:

1. Follow local codes and regulations when select field wires ,and all the above are the minimum wire size.
2. Use copper supply wires.
3. When transmitting cable length is more than 49 ft. (15m) , a larger wire size should be selected.
4. Install main switch and ELB for each system separately. Select the high response type ELB that is acted within 0.1 second.
   Recommended capacity to see outdoor machine switch capacity.

Trial Run

Please perform trial run according to outdoor unit installation manual.

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