Argo AE720SH Service Manual Download Page 2

0.8180.531.00     05/2007

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 A 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...
... In a ceiling or wall

Make sure the ceiling/wall 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 than
drifting snow. Provide snow vents.

When connecting refrigerant tubing

• 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 testng 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

2

Summary of Contents for AE720SH

Page 1: ...TECHNICAL DATA SERVICE MANUAL OUTDOOR UNIT AE720SH AE726SH AE735SH 0 8180 531 1 06 2008 SPLIT SYSTEM AIR CONDITIONER AE735SH 387007176 Model No Product Code No AE726SH 387007175 AE720SH 387007174 ...

Page 2: ...ot 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 alu...

Page 3: ...her Component specifications 11 3 DIMENSIONAL DATA 12 4 REFRIGERANT FLOW DIAGRAM 13 5 PERFORMANCE DATA 14 5 1 Performance Charts 14 5 2 Cooling Capacity 17 5 3 Heating Capacity 20 6 ELECTRICAL DATA 21 6 1 Electrical characteristics 21 6 2 Electric Wiring Diagram 24 6 3 System Wiring Diagram 24 Table of Contents 3 ...

Page 4: ... RANGE Cooling Maximum Minimum 43 C D B 19 C D B 32 C D B 23 C W B 19 C D B 14 C W B 24 C D B 18 C W B 8 C D B 9 C W B Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Heating Maximum Minimum 27 C D B 4 ...

Page 5: ...ube diameter Wide tube mm in Dimensions Weight Unit dimensions Height mm Width mm Depth mm Package dimensions Height mm Width mm Depth mm Weight Net kg Shipping kg Shipping volume m3 DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 27 C D B 19 C W B Outdoor air temperature 35 C D B 24 C W B Heating Indoor air temperature 20 C D B Outdoor air temper...

Page 6: ...e mm in Dimensions Weight Unit dimensions Height mm Width mm Depth mm Package dimensions Height mm Width mm Depth mm Weight Net kg Shipping kg Shipping volume m3 DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 27 C D B 19 C W B Outdoor air temperature 35 C D B 24 C W B Heating Indoor air temperature 20 C D B Outdoor air temperature 7 C D B 6 C W B...

Page 7: ... mm in Dimensions Weight Unit dimensions Height mm Width mm Depth mm Package dimensions Height mm Width mm Depth mm Weight Net kg Shipping kg Shipping volume m3 DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 27 C D B 19 C W B Outdoor air temperature 35 C D B 24 C W B Heating Indoor air temperature 20 C D B Outdoor air temperature 7 C D B 6 C W B ...

Page 8: ...inal output W Coil resistance Ambient temp 25 C Ω Safety devices Type Operating temp Open C Close C Run capacitor µF VAC Heat Exch Coil Coil Rows Fin pitch mm Face area m2 External Finish DATA SUBJECT TO CHANGE WITHOUT NOTICE Acrylic baked on enamel finish Aluminium plate fin Copper tube 1 1 2 0 35 6 865 1 5 450 21 BRN WHT 242 4 WHT YEL 408 1 Thermal protector 120 5 400 Propeller 1 Ø 370 IB 966 50...

Page 9: ... Coil resistance Ambient temp 25 C Ω Safety devices Type Operating temp Open C Close C Run capacitor µF VAC Heat Exch Coil Coil Rows Fin pitch mm Face area m2 External Finish DATA SUBJECT TO CHANGE WITHOUT NOTICE 30 700 MRA99901 9201 N A N A RB68A Freol Alpha 68M 350 C R 3 863 C S 3 309 External OLR T Rotary Hermetic 5PS102EAG01 400 Propeller 1 Ø 370 IB 966 501 1 6 865 1 5 450 21 BRN WHT 242 4 WHT...

Page 10: ... Coil resistance Ambient temp 25 C Ω Safety devices Type Operating temp Open C Close C Run capacitor µF VAC Heat Exch Coil Coil Rows Fin pitch mm Face area m2 External Finish DATA SUBJECT TO CHANGE WITHOUT NOTICE 450 Thermal protector 120 5 1 5 6 865 21 BRN WHT 242 4 WHT YEL 408 1 400 Propeller 1 Ø 370 IB 966 501 1 Rotary Hermetic 5PS132EAD01 900 MRA98533 9201 N A N A 25 RB68A Freol Alpha 68M 350 ...

Page 11: ...2 3 Other Component Specifications AE720SH AE726SH AE735SH 4 way Valve 20S Coil rating Coil resistance Ω at 20 C AC 220 240 V 50 Hz 6W 1470 7 SQ 136 Coil SHF 4H 23U Valve 11 ...

Page 12: ...ONAL DATA 700 540 15 470 4 ø12 holes 116 320 294 Air intake Air discharge 255 10 170 103 57 Narrow tube service valve ø6 35 1 4 Wide tube service valve ø9 52 3 8 ø12 7 1 2 7000 9000 BTU h 12000 BTU h Unit mm 12 ...

Page 13: ...ome cold To prevent heat loss and wet floors due to dripping of condensation both tubes must be well insulated with a proper insulation material The thickness of the insulation should be a min 8mm CAUTION After a tube has been insulated never try to bend it into a narrow curve because it can cause the tube to break or crack O D Ø9 52mm 3 8 O D Ø6 35mm 1 4 O D Ø12 7mm 1 2 O D Ø6 35mm 1 4 cooling cy...

Page 14: ... 4 50 10 5 0 5 10 15 20 25 Outdoor inlet air D B C High pressure at wide tube service valve MPa 2 5 2 7 2 9 3 1 3 3 3 5 3 7 3 9 20 25 30 35 40 45 Outdoor inlet air D B temp C Operating current A Indoor inlet air D B C 32 27 19 2 5 2 7 2 9 3 1 3 3 3 5 3 7 3 9 10 5 0 5 10 15 20 25 Outdoor inlet D B temp C Operating current A Indoor inlet air D B C 27 20 15 0 60 0 80 1 00 1 20 1 40 1 60 20 25 30 35 4...

Page 15: ...0 25 Outdoor inlet air D B C High pressure at wide tube service valve MPa 2 7 2 9 3 1 3 3 3 5 3 7 3 9 20 25 30 35 40 45 Outdoor inlet air D B temp C Operating current A Indoor inlet air D B C 32 27 19 2 7 2 9 3 1 3 3 3 5 3 7 3 9 10 5 0 5 10 15 20 25 Outdoor inlet D B temp C Operating current A Indoor inlet air D B C 27 20 15 0 60 0 70 0 80 0 90 1 00 1 10 1 20 20 25 30 35 40 45 Outdoor inlet air D ...

Page 16: ...0 25 Outdoor inlet air D B C High pressure at wide tube service valve MPa 4 0 4 5 5 0 5 5 6 0 6 5 7 0 20 25 30 35 40 45 Outdoor inlet air D B temp C Operating current A Indoor inlet air D B C 32 27 19 4 0 4 5 5 0 5 5 6 0 6 5 7 0 10 5 0 5 10 15 20 25 Outdoor inlet D B temp C Operating current A Indoor inlet air D B C 27 20 15 0 60 0 70 0 80 0 90 1 00 1 10 1 20 20 25 30 35 40 45 Outdoor inlet air D ...

Page 17: ...0 1 75 TC 2 47 2 34 2 26 2 15 2 02 1 86 CM 0 34 0 42 0 49 0 56 0 64 0 71 21 SHC 1 09 1 02 0 99 0 94 0 89 0 82 23 SHC 1 29 1 20 1 17 1 13 1 07 1 00 19 25 SHC 1 48 1 38 1 35 1 30 1 25 1 18 27 SHC 1 67 1 56 1 53 1 66 1 43 1 36 29 SHC 1 87 1 73 1 71 1 66 1 61 1 54 31 SHC 2 06 1 91 1 89 1 85 1 79 1 72 TC 2 60 2 48 2 39 2 28 2 14 1 97 CM 0 46 0 51 0 56 0 62 0 67 0 73 23 SHC 1 07 1 01 0 98 0 93 0 87 0 81...

Page 18: ...05 2 88 2 78 2 65 2 49 2 29 CM 0 55 0 59 0 64 0 68 0 72 0 77 21 SHC 1 35 1 26 1 22 1 16 1 09 1 01 23 SHC 1 59 1 48 1 45 1 39 1 32 1 24 19 25 SHC 1 83 1 70 1 66 1 61 1 54 1 46 27 SHC 2 06 1 92 1 89 1 81 1 76 1 68 29 SHC 2 30 2 13 2 11 2 05 1 99 1 90 31 SHC 2 54 2 36 2 33 2 28 2 21 2 13 TC 3 21 3 05 2 95 2 81 2 64 2 43 CM 0 58 0 62 0 66 0 70 0 75 0 79 23 SHC 1 32 1 25 1 20 1 15 1 08 1 00 21 25 SHC 1...

Page 19: ... 91 3 70 3 57 3 40 3 19 2 94 CM 0 69 0 78 0 87 0 97 1 06 1 15 21 SHC 1 73 1 62 1 57 1 49 1 40 1 30 23 SHC 2 04 1 90 1 86 1 78 1 69 1 59 19 25 SHC 2 35 2 18 2 14 2 06 1 98 1 87 27 SHC 2 64 2 46 2 42 2 35 2 26 2 16 29 SHC 2 95 2 73 2 71 2 63 2 55 2 44 31 SHC 3 26 3 02 2 99 2 92 2 83 2 73 TC 4 11 3 92 3 78 3 61 3 39 3 12 CM 0 80 0 88 0 95 1 03 1 10 1 18 23 SHC 1 69 1 60 1 54 1 47 1 38 1 28 21 25 SHC ...

Page 20: ...g rating condition Indoor 20 C D B Outdoor 7 C D B 6 C W B 2 Above characteristics indicate instantaneous operation which does not take into consideration defrost operation 3 Fan speed High 4 Because this air conditioner heats a room by drawing in the heat of the outside air heat pump system the heating efficiency will fall off when the outdoor temperature is very low If sufficient heat cannot be ...

Page 21: ... C D B 23 C W B Outdoor Air Temperature 43 C D B HEATING Indoor Unit Complete Unit Fan Motor Fan Motor Compressor performance at Rating conditions Running Amps A 0 11 0 28 2 51 2 90 Power input Kw 0 025 0 063 0 542 0 630 Full load conditions Running Amps A 0 11 0 28 3 51 3 90 Power input Kw 0 025 0 063 0 742 0 830 Rating Conditions Indoor Air Temperature 20 C D B Outdoor Air Temperature 7 C D B 6 ...

Page 22: ...Air Temperature 43 C D B HEATING Indoor Unit Complete Unit Fan Motor Fan Motor Compressor performance at Rating conditions Running Amps A 0 12 0 28 3 20 3 60 Power input Kw 0 027 0 063 0 700 0 790 Full load conditions Running Amps A 0 12 0 28 3 55 3 95 Power input Kw 0 027 0 063 0 810 0 900 Rating Conditions Indoor Air Temperature 20 C D B Outdoor Air Temperature 7 C D B 6 C W B Full Load Conditio...

Page 23: ...Air Temperature 43 C D B HEATING Indoor Unit Complete Unit Fan Motor Fan Motor Compressor performance at Rating conditions Running Amps A 0 13 0 28 4 8 5 20 Power input Kw 0 031 0 063 0 931 1 025 Full load conditions Running Amps A 0 13 0 28 5 89 6 30 Power input Kw 0 031 0 063 1 206 1 300 Rating Conditions Indoor Air Temperature 20 C D B Outdoor Air Temperature 7 C D B 6 C W B Full Load Condition...

Page 24: ...6 2 Electric Wiring Diagram AE720SH AE726SH AE735SH 6 3 System Wiring Diagram indoor unit AW720HL outdoor unit AE720SH AW726HL AE726SH AW735HL AE735SH 24 ...

Page 25: ...0 8180 531 00 05 2007 Tel 39 0331 755111 Fax 39 0331 776240 www argoclima it ...

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