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WIRING CONNECTION

11

ENGLISH

Use round pressure terminals for connections to the power terminal block.

When none are available, follow the instructions below.
- Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power

wiring may cause abnormal heat.)

- When connecting wiring which is the same thickness, do as shown in the figure below.

- For wiring, use the designated power wire and connect firmly, then secure to prevent outside

pressure being exerted on the terminal block.

- Use an appropriate screwdriver for tightening the terminal screws. A screwdriver with a small

head will strip the head and make proper tightening impossible.

- Over-tightening the terminal screws may break them.

Round pressure terminal

Power wire

Connect same thickness 
wiring to both sides. 

It is forbidden to connect 
two to one side.

It is forbidden to 
connect wiring of 
different thicknesses.

Round pressure terminal

Power wire

Connect same thickness 
wiring to both sides. 

It is forbidden to connect 
two to one side.

It is forbidden to 
connect wiring of 
different thicknesses.

Precautions when laying power wiring

Summary of Contents for ATUQ18GTLA2

Page 1: ...read this installation manual completely before installing the product Installation work must be performed in accordance with the national wiring standards by authorized personnel only Please retain this installation manual for future reference after reading it thoroughly Single Outdoor ...

Page 2: ...ay deteriorate if the air condition er is used for many hours Clean the air filter once every 2 weeks Dust and impurities collected in the air filter may block the air flow or weaken the cooling dehumidifying functions For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here Model ...

Page 3: ... instruction concerning use of the appliance by a person responsible for their safety Installation Do not install duct through disassemble or repair the product yourself This product can not install duct Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified ele...

Page 4: ...failure of product Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on Do not use the telephone or turn switches on or off There is risk of explosion or fire If strange sound smell or smoke comes from product turn the breaker off or disconnect the power ...

Page 5: ...shock or damage to the plastic parts of the product Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury Do not step on or put anything on the product outdoor units There is risk of personal injury and failure of product Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filt...

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Page 7: ... the path of the warm air Take the air conditioner weight into account and select a place where noise and vibration are minimum Select a place so that the warm air and noise from the air conditioner do not disturb neighbors OUTDOOR OUTDOOR UNIT UNIT OUTDOOR UNIT More than 300 11 13 16 mm Fence or obstacles More than 600 23 5 8 mm More than More than 300 11 13 16 mm 300 11 13 16 mm More than 300 11...

Page 8: ...ATUQ18GTLA2 ATUQ24GTLA2 ...

Page 9: ...ATUQ18GTLA2 ATUQ24GTLA2 ...

Page 10: ...cord set complying with the national regulation When the connection line between the indoor unit and outdooor unit is over 40 131 2 m ft connect the telecommunication line and power line sepa rately If the supply cord is damaged it must be replaced by a special cord or assembly availible from the manufacturer of its service agent CAUTION GN YL 20mm 20 25 32 mm inch GN YL 35 1 3 8 5 3 16 mm inch 10...

Page 11: ...ecure to prevent outside pressure being exerted on the terminal block Use an appropriate screwdriver for tightening the terminal screws A screwdriver with a small head will strip the head and make proper tightening impossible Over tightening the terminal screws may break them Round pressure terminal Power wire Connect same thickness wiring to both sides It is forbidden to connect two to one side I...

Page 12: ...ATUQ18GTLA2 diagram ATUQ24GTLA2 Power cord Power connecting cable Power cord Power connecting cable ...

Page 13: ...ce Be sure to connect wires according to the wiring diagram Connect the wires firmly so that They won t be pulled out easily Connect the wires according to color codes by referring the wiring diagram The Power cord connected to the unit should be selected according to the specifications ...

Page 14: ...Slanted Uneven Rough Pipe Reamer Point down Flare nut Copper tube Bar Copper pipe Clamp handle Red arrow mark Cone Yoke Handle Bar A Inclined Inside is shining without scratches Smooth all round Even length all round Surface damaged Cracked Uneven thickness Improper flaring Copper tube 90 Slanted Uneven Rough Pipe Reamer Point down Flare nut Copper tube Bar Copper pipe Clamp handle Red arrow mark ...

Page 15: ...nally tighten the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Trap Trap is required to prevent water from entering into electrical parts Taping Drain hose Pipings Connecting cable Power supply cord Plastic Plastic band band Plastic band Seal a small Seal a small opening aro...

Page 16: ...re to use a manifold valve for leakage test If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close CAUTION To avoid nitrogen entering the refrigerant system in a liquid state the top of the cylinder must be higher than its bottom when you pressurize the system Usually the cylinder is used in a ver tical standing position Preparation Che...

Page 17: ...remove the hose Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut secure ly with an adjustable wrench This process is very important to prevent leakage from the sys tem Replace the valve caps at both gas and liquid side service valves and fasten them tight This completes air purging with a vacuum pump The air conditioner is now ready to test run Outdoor uni...

Page 18: ...upply Circuit breaker is required Operate the unit for fifteen minutes or more CAUTION For test run carry out the cooling operation firstly even during heating season If heating operation is carried out firstly it leads to the trouble of compressor Then attention must be paid Carry out the test run more than 5 minutes without fail Test run will be cancelled 18 minutes later automatically Is the ci...

Page 19: ...ey are all tightly fastened If they are loose it could give rise to burn out of the wires 4 Specification of power source 5 Confirm that electrical capacity is sufficient 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated volt age marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the ...

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