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IMPORTANT!
Please read before installation

This air conditioning system meets strict safety and operating
standards.
For the installer or service person, it is important  to install or
service the system so that it operates safely and efficiently.

For safe installation and trouble-free operation, you must:

• Carefully read this instruction booklet before beginning.
• Follow each installation or repair step exactly as shown.
• Observe all local, state and national electrical  codes.
• Pay close attention to all warning and caution notices given in

this manual.

•The unit must be supplied with a dedicated electrical line.

This symbol refers to a hazard or unsafe practice which can result
in severe personal injury or death.

This symbol refers to a hazard or unsafe practice which can result
in personal injury or product or property damage.

If necessary, get help

These instructions are all you need for most installation sites and
maintenance conditions.
If you require help for a special problem, contact our sale/service
outlet or your certified dealer for additional instructions.

In case of improper installation

The manufacturer shall in no way be responsible for improper
installation or maintenance service, including failure to follow the
instructions in this document.

SPECIAL PRECAUTIONS

• During installation, connect before the refrigerant system and

then the wiring one; proceed in the reverse orden when removing
the units.

When wiring

ELECTRICAL

SHOCK CAN CAUSE SEVERE

PERSONAL INJURY OR DEATH. ONLY QUALIFIED,
EXPERIENCED ELECTRICIANS SHOULD ATTEMPT
TO WIRE THIS SYSTEM.

• Do not supply power to the unit until all wiring and tubing are

completed or reconnected and checked, to ensure the grounding.

• Highly dangerous electrical voltages are used in this system.

Carefully refer to the wiring diagram and these instructions when
wiring.
Improper connections and inadequate grounding can cause

accidental injury and death

.

Ground the unit 

following local electrical codes.

• The Yellow/Green wire cannot be used for any connection

different from the ground connection.

• Connect all wiring tightly. Loose wiring may cause overheating

at connection points and a possible fire hazard.

• Do not allow wiring to touch the refrigerant tubing, compressor,

or any moving parts of the fan.

• Do not use multi-core cable when wiring the power supply and

control lines. Use separate cables for each type of line.

When transporting

Be careful when picking up and moving the indoor and outdoor
units. Get a partner to help, and bend your knees when lifting to
reduce strain on your back. Sharp edges or thin aluminium fins on
the air conditioner can cut your fingers.

When installing...

• Keep all tubing runs as short as possible.
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of the flare

and union tubes before connecting them;  screw by hand and
then tighten the nut with a torque wrench for a leak-free
connection.

• Check carefully for leaks before starting the test run.

NOTE:

Depending on the system type, liquid and gas lines may be either
narrow or wide. Therefore, to avoid confusion, the refrigerant
tubing for your particular model is specified as narrow tube for
liquid, wide tube for gas.

When servicing

• Turn the power OFF at the main power board  before opening

the unit to check or repair electrical parts and wiring.

• Keep your fingers and clothing away from any moving parts.
• Clean up the site after the work, remembering to check that no

metal scraps or bits of wiring have been left inside the unit being
serviced.

• Ventilate the room during the installation or test

i

ng the refrigeration

system; make sure that, after the installation, no gas leaks are
present, because this could produce toxic gas and dangerous
if in contact with flames or heat-sources.

WARNING

CAUTION

WARNING

… In a ceiling

Make sure the ceiling is strong enough to hold the unit-weight.
It may be necessary to build a strong wooden or metal frame to
provide added support.

… In a room

Properly insulate any tubing run inside a room to prevent
"sweating", which can cause dripping and water damage to
walls and floors.

... In moist or uneven locations

Use a raised concrete base to provide a solid level foundation
for the outdoor unit. This prevents damage and abnormal
vibrations.

... In area with strong winds

Securely anchor the outdoor unit down with bolts and a metal
frame. Provide a suitable air baffle.

... In a snowy area (for heat pump-type systems)

Install the outdoor unit on a raised platform that is higher then
drifting snow. Provide snow vents.

When connecting refrigerant tubing

2

Summary of Contents for 387006131

Page 1: ...TECHNICAL DATA SERVICE MANUAL INDOOR UNIT AD52AL AD64AL SPLIT SYSTEM AIR CONDITIONER AD64AL 0 8180 419 0 07 2005 387006132 Model No Product Code No AD52AL 387006131...

Page 2: ...w wiring to touch the refrigerant tubing compressor or any moving parts of the fan Do not use multi core cable when wiring the power supply and control lines Use separate cables for each type of line...

Page 3: ...ions in Cool Dry Mode 16 4 7 Protections in Heat Mode 18 4 8 Sleep Function 21 4 9 Daily Timer 21 4 10 I FEEL Function 21 4 11 Drain Pump Operation 22 5 TROUBLESHOOTING 23 5 1 Check before and after t...

Page 4: ...imensions Unit Height mm Width mm Depth mm Package dimensions Unit Height mm Width mm Depth mm Volume m3 Weight Unit Net kg Shipping kg DATA SUBJECT TO CHANGE WITHOUT NOTICE Power level measured at op...

Page 5: ...mm Width mm Depth mm Package dimensions Unit Height mm Width mm Depth mm Volume m3 Weight Unit Net kg Shipping kg DATA SUBJECT TO CHANGE WITHOUT NOTICE Power level measured at operating conditions HI...

Page 6: ...LK 9 BLK GRY 36 GRY VLT 18 VLT RED 18 BRN YEL 105 Safety devices Type Operating temp Open C Run capacitor F VAC Heat Exch Coil Coil Rows Fin pitch mm face area m2 DATA SUBJECT TO CHANGE WITHOUT NOTICE...

Page 7: ...Y VLT 18 VLT RED 18 BRN YEL 105 Safety devices Type Operating temp Open C Run capacitor F VAC Heat Exch Coil Coil Rows Fin pitch mm face area m2 DATA SUBJECT TO CHANGE WITHOUT NOTICE Fan speeds H M L...

Page 8: ...mistor Coil sensor TH1 Resistance Thermistor Room sensor TH2 Resistance Drain pump Model Rating Voltage Input Total head capacity Safety float switch Model Contact rating 10 5 10 3 PC 309564003 220 24...

Page 9: ...9...

Page 10: ...2 DIMENSIONAL DATA Units mm 10...

Page 11: ...3 ELECTRICAL DATA 3 1 Electric Wiring Diagrams 11...

Page 12: ...4 1 Cool Mode Operation 4 FUNCTION 12...

Page 13: ...4 2 Heat Mode Operation 13...

Page 14: ...4 3 Auto Cool Heat Mode Operation 14...

Page 15: ...4 4 Dry Mode Operation 15...

Page 16: ...4 5 Fan Mode Operation 4 6 Protection operations in Cool and Dry Mode 1 Indoor Coil Defrost Protection 5 Protection Operations in Cool and Dry Modes 16...

Page 17: ...2 Outdoor Coil High Pressure Protection 17...

Page 18: ...4 7 Protection Operations in Heat Mode 1 Outdoor Coil Deice Protection 18...

Page 19: ...19...

Page 20: ...2 Indoor Coil High Pressure Protection in Heat Mode 20...

Page 21: ...4 8 Sleep Function 4 9 Daily Timer Function 4 10 IFEEL Function 21...

Page 22: ...ogic 0 and 1 at the float switch pins connector respectively For the Fujitsu version of MCU the Overflow and Normal condition are indicated by a logic 1 and 0 at the float switch pins connector respec...

Page 23: ...nect power or turn off circuit breaker before you start checking or servicing 5 5 1 5 1 1 5 1 2 5 1 3 5 1 4 5 2 Air conditioner does not operate 5 2 1 Circuit breaker trips or fuse blows A When the ci...

Page 24: ...to ON Indoor PCB Ass y is defective NO Check power supply Power is being supplied to the indoor unit Circuit breaker is tripped Power failure Reset breaker Wait for recovery or contact power company R...

Page 25: ...ary and secondary winding of transformer TR Indoor PCB Ass y is defective OK OK Measure resistance of indoor and outdoor fan motor winding FM Measure resistance of compressor motor winding CM OK Repla...

Page 26: ...ature by temperature setting button button Outdoor unit still does not run Remote control unit is defective Try to run using another remote control unit COOL OK NO Is room temperature too high Try to...

Page 27: ...tter in bearings Remove foreign matter or repair Repair or replace Measure resistance of outdoor fan motor winding Check fan motor capacitor Measure resistance of flap motor winding Fan cannot be turn...

Page 28: ...otor winding is abnormally high Refrigerant gas shortage Charge refrigerant gas Measure power supply voltage Rotor may be locked up The voltage is too low 5 3 4 Compressor and outdoor fan do not run F...

Page 29: ...emote control unit Receiver in lamp ass y may be defective may be defective Measure resistance of 4 way valve s winding COOL to HEAT Check voltage between Outdoor PCB ass y is defective terminals N an...

Page 30: ...rtage YES Check position of remote control unit Cool or warm air from air conditioner reaches position directly Change position of remote control unit Wide and narrow tubes between indoor unit and out...

Page 31: ...lampoon on the front side of the indoor unit will flash on and off when the thermistor is defective At the same time the outdoor unit will stop Indoor operate only for ventilation Temperature sensor...

Page 32: ...sulation resistance tester and measure the resistance by placing a probe on each terminal screw on the terminal plate fig 2 Note that the ground line terminal should be skipped for the check 6 1 4 Mea...

Page 33: ...then place a probe on the capacitor terminals as shown in fig 7 Observe the deflection of the pointer setting the resistance measuring range of the multimeter to the maximum value The capacitor is go...

Page 34: ...Via Varese 90 21013 Gallarate Va Italy Tel 39 0331 755111 Fax 39 0331 776240 www argoclima it...

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