Argo AS1S22MH, ASBS28MH, AS1S28MH, AS1S36MH, ASBS36MH Installation Instructions Manual

...

AS1S

ASBS

AS2S

ASS

AWS

ACS

ADS

ADPS

AFS

AFNS

AES

REM

85464359926000 2006

– MULTISET System Air Conditioner –

INSTALLATION INSTRUCTIONS

 R410A Models

Indoor Units

Outdoor Units

Indoor Unit Type 22 28 36 56 73 106 140

AS1S 1-Way Air Discharge AS1S22MH AS1S28MH AS1S36MH

Semi-Concealed

ASBS 1-Way Air Discharge ASBS28MH ASBS36MH ASBS56MH ASBS73MH

Semi-Concealed Slim

AS2S 2-Way Air Discharge AS2S22MH AS2S28MH AS2S36MH AS2S56MH AS2S73MH

Semi-Concealed

ASS 4-Way Air Discharge ASS22MH ASS28MH ASS36MH ASS56MH ASS73MH ASS106MH ASS140MH

Semi-Concealed

AWS Wall-Mounted AWS22MH AWS28MH AWS36MH AWS56MH AWS73MH

ACS Ceiling-Mounted ACS36MH ACS56MH ACS73MH ACS106MH ACS140MH

ADS Concealed-Duct ADS22MH ADS28MH ADS36MH ADS56MH ADS73MH ADS106MH ADS140MH

ADPS Concealed-Duct ADPS73MH ADPS106MH ADPS140MH

High Static Pressure

AFS Floor-Standing AFS22MH AFS28MH AFS36MH AFS56MH AFS73MH

AFNS Concealed-Floor- AFNS22MH AFNS28MH AFNS36MH AFNS56MH AFNS73MH

Standing

* Refrigerant R410A is used in the outdoor units.

AES Heat Pump Unit ES04MMIH, AES05MMIH, AES06MMIH

Optional Controllers

Remote Controller REM HW

Wireless Remote Controller (For ASS type) REM HLASS

Wireless Remote Controller (For AS2S, ASBS type) REM HLAS2BS

Wireless Remote Controller (For ACS type) REM HLACS

REM Wireless Remote Controller REM HL

(For AS1S, ADS, ADPS, AFS, AFNS type)

Wireless Remote Controller (For AWS type) REM HLAWS

Simplified Remote Controller REM HWSM

Remote Sensor RSM

System Controller REM HW64S

Schedule Timer REM HWT

DC Inverter R410A

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page a

IMPORTANT! Please Read Before Starting

This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so 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.



This product is intended for professional use. Permission from the power supplier is required when installing an outdoor unit that is connected to a 16 A distribution network.



Pay close attention to all warning and caution notices given in this manual.

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 sales/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

When Wiring

ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.

• Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked.

• 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 or death.

• Ground the unit following local electrical codes.

• Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.

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 aluminum fins on the air conditioner can cut your fingers.

When Installing…

…In a Room

Properly insulate any tubing run inside a room to prevent “sweating” that can cause dripping and water damage to walls and floors.

…In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration.

…In an Area with High 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

• Ventilate the room well, in the event that is refrigerant gas leaks during the installation. Be careful not to allow contact of the refrigerant gas with a flame as this will cause the generation of poisonous gas.

• 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, then tighten the nut with a torque wrench for a leak-free connection.

• Check carefully for leaks before starting the test run.

When Servicing

• Turn the power OFF at the main power box (mains) 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 you finish, remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced.

• Ventilate any enclosed areas when installing or testing the refrigeration system. Escaped refrigerant gas, on contact with fire or heat, can produce dangerously toxic gas.

• Confirm after installation that no refrigerant gas is leaking. If the gas comes in contact with a burning stove, gas water heater, electric room heater or other heat source, it can cause the generation of poisonous gas.

WARNING

CAUTION

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 2

2. The standards for minimum room volume are as follows.

(1) No partition (shaded portion)

(2) When there is an effective opening with the adja-

cent room for ventilation of leaking refrigerant gas (opening without a door, or an opening 0.15% or larger than the respective floor spaces at the top or bottom of the door).

(3) If an indoor unit is installed in each partitioned

room and the refrigerant tubing is interconnected, the smallest room of course becomes the object. But when mechanical ventilation is installed interlocked with a gas leakage detector in the smallest room where the density limit is exceeded, the volume of the next smallest room becomes the object.

3. The minimum indoor floor space compared with the amount of refrigerant is roughly as follows (when the ceiling is 2.7 m high):

Check of Density Limit

The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its density will not exceed a set limit.

The refrigerant (R410A), which is used in the air conditioner, is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws imposed to protect the ozone layer. However, since it contains more than air, it poses the risk of suffocation if its density should rise excessively. Suffocation from leakage of refrigerant is almost non-existent. With the recent increase in the number of high density buildings, however, the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space, individual control, energy conservation by curtailing heat and carrying power, etc. Most importantly, the multi air conditioner system is able to replenish a large amount of refrigerant compared to conventional individual air conditioners. If a single unit of the multi air conditioner system is to be installed in a small room, select a suitable model and installation procedure so that if the refrigerant accidentally leaks out, its density does not reach the limit (and in the event of an emergency, measures can be made before injury can occur). In a room where the density may exceed the limit, create an opening with adjacent rooms, or install mechanical ventilation combined with a gas leak detection device. The density is as given below.

Total amount of refrigerant (kg)

Min. volume of the indoor unit installed room (m3)

Density limit (kg/m3)

The density limit of refrigerant which is used in multi air conditioners is 0.3 kg/m

(ISO 5149).

1. If there are 2 or more refrigerating systems in a single refrigerating device, the amount of refrigerant should be as charged in each independent device.

For the amount of charge in this example:

The possible amount of leaked refrigerant gas in rooms A, B and C is 10 kg. The possible amount of leaked refrigerant gas in rooms D, E and F is 15 kg.

NOTE

Outdoor unit

Refrigerant tubing

Indoor unit

e.g., charged amount (10 kg)

Outdoor unit

Indoor unit

Room A Room B Room C Room D Room E Room F

e.g., charged amount (15 kg)

Refrigerant tubing

Outdoor unit

Very small room

Indoor unit

Small room

Medium room

Large room

Mechanical ventilation device – Gas leak detector

10 20 30

Total amount of refrigerant

Min. indoor floor space

Range below the density limit of 0.3 kg/m

(countermeasures not needed)

Range above the density limit of 0.3 kg/m

(countermeasures needed)

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 3

R407C tools

Item compatible Remarks

with R410A?

Manifold gauge Yes No Types of refrigerant, refrigerating machine oil, and

pressure gauge are different.

Charge hose Yes No To resist higher pressure, material must be changed.

Vacuum pump Yes Yes Use a conventional vacuum pump if it is equipped

with a check valve. If it has no check valve, purchase and attach a vacuum pump adapter.

Leak detector Yes No Leak detectors for CFC and HCFC that

react to chlorine do not function because R410A contains no chlorine. Leak detector for HFC134a can be used for R410A.

Flaring oil Yes No For systems that use R22, apply mineral oil (Suniso oil)

to the flare nuts on the tubing to prevent refrigerant leakage. For machines that use R407C or R410A, apply synthetic oil (ether oil) to the flare nuts.

1-2. Prevent impurities including water, dust and oxide from entering the tubing. Impurities can cause R410A

refrigerant deterioration and compressor defects. Due to the features of the refrigerant and refrigerating machine oil, the prevention of water and other impurities becomes more important than ever.

2. Be sure to recharge the refrigerant only in liquid form.

2-1. Since R410A is a non-azeotrope, recharging the refrigerant in gas form can lower performance and cause

defects of the unit.

2-2. Since refrigerant composition changes and performance decreases when gas leaks, collect the remaining

refrigerant and recharge the required total amount of new refrigerant after fixing the leak.

3. Different tools required

3-1. Tool specifications have been changed due to the characteristics of R410A.

Some tools for R22- and R407C-type refrigerant systems cannot be used.

Unit: mm

Material O

Copper tube

Outer diameter 6.35 9.52 12.7 15.88 19.05

Wall thickness 0.8 0.8 0.8 1.0 1.0

Precautions for Installation Using New Refrigerant

1. Care regarding tubing

1-1. Process tubing

 Material: Use C1220 phosphorous deoxidized copper specified in JIS H3300 “Copper and Copper Alloy Seam-

less Pipes and Tubes.”

 Tubing size: Be sure to use the sizes indicated in the table below.

 Use a tube cutter when cutting the tubing, and be sure to remove any flash. This also applies to distribution

joints (optional).

 When bending tubing, use a bending radius that is 4 times the outer diameter of the tubing or larger.

* Using tools for R22 and R407C and new tools for R410A together can cause defects.

Manifold gauge

Vacuum pump

Outlet Inlet

CAUTION

Use sufficient care in handling the tubing. Seal the tubing ends with caps or tape to prevent dirt, moisture, or other foreign substances from entering. These substances can result in system malfunction.

New tool?

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 4

Valve

Liquid

3-2. Use R410A exclusive cylinder only.

Single-outlet valve

(with siphon tube) Liquid refrigerant should be recharged with the cylinder standing on end as shown.

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 5

IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Please Read Before Starting Check of Density Limit Precautions for Installation Using New Refrigerant

1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1-1. Tools Required for Installation (not supplied) 1-2. Accessories Supplied with Unit 1-3. Type of Copper Tube and Insulation Material 1-4. Additional Materials Required for Installation 1-5. Tubing Size 1-6. Straight Equivalent Length of Joints 1-7. Additional Refrigerant Charge 1-8. System Limitations 1-9. Tubing Length 1-10. Check of Limit Density 1-11. Installing Distribution Joint 1-12 Optional Distribution Joint Kit 1-13. Optional Ball Valve Kit 1-14. Recommended Location of Ball Valves 1-15. Example of Tubing Size Selection and

Refrigerant Charge Amount

2. SELECTING THE INSTALLATION SITE . . . . .21

2-1. Indoor Unit 2-2. Outdoor Unit 2-3. Air Discharge Chamber for Top Discharge 2-4. Installing the Unit in Heavy Snow Areas 2-5. Precautions for Installation in Heavy Snow

Areas 2-6. Dimensions of Air-Discharge Chamber 2-7. Dimensions of Outdoor Unit with

Air-Discharge Chamber (field supply) 2-8. Dimensions of Snow Ducting 2-9. Dimensions of Outdoor Unit with

Snow-Proof Vents (field supply)

3. HOW TO INSTALL THE INDOOR UNIT . . . . . .29

 1-Way Air Discharge Semi-Concealed Type

(AS1S Type) . . . . . . . . . . . . . . . . . . . . . . . . . . .29

3-1. Suspending the Indoor Unit 3-2. Placing the Unit Inside the Ceiling 3-3. Installing the Drain Piping 3-4. Checking the Drainage

 1-Way Air Discharge Semi-Concealed Slim Type

(ASBS Type) . . . . . . . . . . . . . . . . . . . . . . . . . . .34

3-5. Suspending the Indoor Unit 3-6. Placing the Unit Inside the Ceiling 3-7. Installing the Drain Piping 3-8. Checking the Drainage

 2-Way Air Discharge Semi-Concealed Type

(AS2S Type) . . . . . . . . . . . . . . . . . . . . . . . . . . .39

3-9. Suspending the Indoor Unit 3-10. Placing the Unit Inside the Ceiling

3-11. Installing the Drain Piping 3-12. Checking the Drainage

 4-Way Air Discharge Semi-Concealed Type

(ASS Type) . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

3-13. Preparation for Suspending 3-14. Suspending the Indoor Unit 3-15. Placing the Unit Inside the Ceiling 3-16. Installing the Drain Piping 3-17. Checking the Drainage

 Wall-Mounted Type (AWS Type) . . . . . . . . . . . .47

3-18. Removing the Rear Panel from the Unit 3-19. Selecting and Making a Hole 3-20. Installing the Rear Panel onto the Wall 3-21. Removing the Grille to Install the Indoor Unit 3-22. Preparing the Tubing 3-23. Shaping the Tubing 3-24. Installing the Drain Hose

 Ceiling-Mounted Type (ACS Type) . . . . . . . . . .51

3-25. Required Minimum Space for Installation and

Service 3-26. Suspending the Indoor Unit 3-27. Duct for Fresh Air 3-28. Shaping the Tubing 3-29. Installing the Drain Piping

 Concealed-Duct Type (ADS Type) . . . . . . . . . .58

3-30. Required Minimum Space for Installation and

Service 3-31. Suspending the Indoor Unit 3-32. Installing the Drain Piping 3-33. Checking the Drainage 3-34. Increasing the Fan Speed

 Concealed-Duct High Static Pressure Type

(ADPS Type) . . . . . . . . . . . . . . . . . . . . . . . . . . .63

3-35. Required Minimum Space for Installation and

Service (73, 106, 140 Type) 3-36. Suspending the Indoor Unit 3-37. Installing the Drain Piping 3-38. Caution for Ducting Work

 Floor-Standing Type (AFS Type)

Concealed Floor-Standing Type (AFNS Type) . . .67 3-39. Required Minimum Space for Installation and

Service 3-40. Dimensions and Part Names 3-41. Removing and Attaching the Front Panel

(Floor-Standing Type) 3-42. Installing the Refrigerant Tubing 3-43. Installing the Drain Piping 3-44. Installing the Remote Controller

4. HOW TO INSTALL THE OUTDOOR UNIT . . . .72

4-1. Installing the Outdoor Unit 4-2. Drainage Work 4-3. Routing the Tubing and Wiring

CONTENTS

Page Page

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 6

5. ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . .73

5-1. General Precautions on Wiring 5-2. Recommended Wire Length and Wire

Diameter for Power Supply System

5-3. Wiring System Diagrams

6. HOW TO INSTALL THE REMOTE CONTROLLER

(OPTIONAL PART) . . . . . . . . . . . . . . . . . . . . . .77

6-1. When Using a Wall Box for Flush Mounting 6-2. Basic Wiring Diagram 6-3. Wiring System Diagram for Group Control 6-4. Switching the Room Temperature Sensors 6-5. Connecting to a Ventilation Fan 6-6. Wiring the Remote Controller

7. HOW TO PROCESS TUBING . . . . . . . . . . . . .82

7-1. Connecting the Refrigerant Tubing 7-2. Connecting Tubing Between Indoor and

Outdoor Units 7-3. Insulating the Refrigerant Tubing 7-4. Taping the Tubes 7-5. Finishing the Installation

8. AIR PURGING . . . . . . . . . . . . . . . . . . . . . . . . .86

 Air Purging with a Vacuum Pump (for Test Run)

Preparation

9. HOW TO INSTALL THE CEILING PANEL . . . .89

 1-Way Air Discharge Semi-Concealed Type

(AS1S Type) . . . . . . . . . . . . . . . . . . . . . . . . . . .89

9-1. Installing the Ceiling Panel 9-2. How to Use the Stoppers

 1-Way Air Discharge Semi-Concealed Slim Type

(ASBS Type) . . . . . . . . . . . . . . . . . . . . . . . . . . .90

9-3. Installing the Ceiling Panel

 2-Way Air Discharge Semi-Concealed Type

(AS2S Type) . . . . . . . . . . . . . . . . . . . . . . . . . . .92

9-4. Before Installing the Ceiling Panel 9-5. Installing the Ceiling Panel 9-6. When Removing the Ceiling Panel for Servicing

 4-Way Air Discharge Semi-Concealed Type

(ASS Type) . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

9-7. Before Installing the Ceiling Panel 9-8. Installing the Ceiling Panel 9-9. Wiring the Ceiling Panel 9-10. How to Attach the Corner & Air Intake Grille 9-11. Checking After Installation 9-12. When Removing the Ceiling Panel for Servicing 9-13. Adjusting the Auto Flap

10. TEST RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . .98

10-1. Preparing for Test Run 10-2. Test Run Procedure 10-3. Outdoor Unit PCB Setting

10-4. Auto Address Setting 10-5. Caution for Pump Down 10-6. Meaning of Alarm Messages

11. HOW TO INSTALL THE WIRELESS REMOTE

CONTROLLER RECEIVER . . . . . . . . . . . . . .111



REM HLASS for 4-Way Cassette (ASS Type)

. . .111 11-1. Installing the Receiver Unit 11-2. Accessories 11-3. Wiring the Receiver Unit 11-4. Precautions on Simultaneous Installation of

Wired Remote Controller and Wireless Remote Controller

11-5. How to use the Test Run Setting



REM HLACS for Ceiling Mounted (ACS Type)

. . .114 11-6. Installing the Receiver Unit 11-7. Accessories Supplied with Unit 11-8. Wiring the Receiver Unit 11-9. Precautions on Simultaneous Installation of

Wired Remote Controller and Wireless Remote Controller

11-10. Ho w to Use the Test Run Setting

 REM HLAS2BS for 2-Way and High Ceiling

1-Way Type (AS2S, ASBS Type) . . . . . . . . . . .117

11-11. Installing the Display 11-12. Installing the Control Unit 11-13. Installing the Display 11-14. Installing the Control Unit 11-15. Accessories 11-16. Wiring the Receiver Unit 11-17. Precautions on Simultaneous Installation of

Wired Remote Controller and Wireless Remote Controller

11-18. How to Use the Test Run Setting

 REM HL for AS1S, ADS, ADPS, AFS, AFNS Type

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122

11-19. Accessories Supplied with Separate

Receiver Unit

11-20. Important Information for Installation of

1 Separate Receiver Unit 11-21. How to Install the Separate Receiver Unit 11-22. Wiring the Separate Receiver Unit

11-23. . . .Important Information for Installation of

2 Separate Receiver Units 11-24. Test Run Setting

12. SPECIAL REMARKS . . . . . . . . . . . . . . . . . . .128

 DC Fan Tap Change Procedure for 4-Way

Cassete (ASS Type)

13. MARKINGS FOR DIRECTIVE

97/23/EC(PED) . . . . . . . . . . . . . . . . . . . . . . . 129

Page

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 7

1. GENERAL

This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning.

1-1. Tools Required for Installation (not supplied)

1. Standard screwdriver

2. Phillips head screwdriver

3. Knife or wire stripper

4. Tape measure

5. Carpenter’s level

6. Sabre saw or key hole saw

7. Hacksaw

8. Core bits

9. Hammer

10. Drill

11. Tube cutter

12. Tube flaring tool

13. Torque wrench

14. Adjustable wrench

15. Reamer (for deburring)

1-2. Accessories Supplied with Unit

See Tables 1-1 to 1-10.

1-3. Type of Copper Tube and Insulation Material

If you wish to purchase these materials separately from a local source, you will need:

1. Deoxidized annealed copper tube for refrigerant tubing.

2. Foamed polyethylene insulation for copper tubes as required to precise length of tubing. Wall thickness of the insulation should be not less than 8 mm.

3. Use insulated copper wire for field wiring. Wire size varies with the total length of wiring. Refer to

5. Electrical Wiring for details.

1-4. Additional Materials Required for Installation

1. Refrigeration (armored) tape

2. Insulated staples or clamps for connecting wire (See your local codes.)

3. Putty

4. Refrigeration tubing lubricant

5. Clamps or saddles to secure refrigerant tubing

6. Scale for weighing

CAUTION

Check local electrical codes and regulations before obtaining wire. Also, check any specified instructions or limitations.

Table Type

1-1 1-Way Air Discharge Semi-Concealed

1-2 1-Way Air Discharge Semi-Concealed Slim

1-3 2-Way Air Discharge Semi-Concealed

1-4 4-Way Air Discharge Semi-Concealed

1-5 Wall-Mounted

1-6 Ceiling-Mounted

1-7 Concealed-Duct

1-8 Concealed-Duct High Static Pressure

1-9 Floor-Standing & Concealed Floor-Standing

1-10 Outdoor Unit

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 8

Table 1-1 (1-Way Air Discharge Semi-Concealed)

Table 1-2 (1-Way Air Discharge Semi-Concealed Slim)

Part Name Figure

Q’ty

Remarks

Flare insulator

Insulating tape

Vinyl clamp

Hose band

Packing

Drain insulator

Drain hose

Installation gauge

For gas and liquid tubes

For gas and liquid tube flare nuts

For flare insulator

For securing drain hose

For drain joint

For measuring clearance between the unit and ceiling

Special washer

For suspension bolts

1 For securing drain hose

(Black)

(White)

Part Name Figure

Q’ty

Remarks

Full-scale installation diagram

Special washer

Flare insulator

Insulating tape

Vinyl clamp

Hose band

Packing

Drain insulator

Sealing putty

Cable

For determining suspension bolt pitch

For temporarily suspending indoor unit from ceiling

For gas and liquid tubes

For gas and liquid tube flare nuts

For flare insulator

For secur ing drain hose

For drain joint

For sealing recessed por tion of po

wer supply

Drain hose

(Black)

For securing drain hose

Connection cable for fan motor

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 9

Table 1-3 (2-Way Air Discharge Semi-Concealed)

Part Name Figure

Q’ty

Remarks

Flare insulator

Insulating tape

Vinyl clamp

Hose band

Packing

Drain insulator

For gas and liquid tubes

For gas and liquid tube flare nuts

For flare insulator and drain insulator

For securing drain hose

For drain joint

or drain joint

(White)

Drain hose (L = 25cm)

Special washer

For suspension bolts

For securing drain hose

For sealing recessed portion of power supply

Putty

Installation gauge (Use the packaging side pad.)

M5 × L40

(Black screw, with washer)

Gauge A (Install on tubing side.)

Gauge B (Install on opposite side of tubing.)

For fastening

installation gauges

Table 1-4 (4-Way Air Discharge Semi-Concealed)

Part Name Figure

Q’ty

Remarks

Full-scale installation diagram

Flare insulator

Insulating tape

Hose band

Packing

Drain insulator

Drain hose

For gas and liquid tubes

For securing drain hose

For drain joint

For dr

ain joint

(White)

Washer

For suspension bolts

Screw

Printed on container box

For gas and liquid tube flare nuts

For full-scale installation diagram

For securing drain hose

Table 1-5 (Wall-Mounted)

Part Name

Figure

Q’ty

Remarks

Plastic cover

Tapping screw

For improved tubing appearance

For fixing the rear panel

Truss-head Phillips 4 × 30 mm

Insulator

For insulating flare nut (73 type only)

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 10

Table 1-6 (Ceiling-Mounted)

Part Name Figure

Q’ty

Remarks

Special washer

Drain insulator

Flare insulator

2 sets

Insulating tape

Vinyl clamp

Eyelet

Full-scale installation

diagram

Drain hose

For temporarily suspending indoor unit from ceiling

For drain hose joint

For gas and liquid tube joints

For gas and liquid flare joints

For flare and drain insulator

For pow

er supply inlet

T10

White (heat-resisting)

For drain hose connection

Hose band

L140

For main unit + PVC pipe joints

Printed on container box

Table 1-7 (Concealed-Duct)

Part Name Figure

Q’ty

Remarks

Flare insulator

Insulating tape

Drain insulator

Hose band

Packing

Drain hose

Sealing putty

Vinyl clamp

Booster cable*

For suspending indoor unit from ceiling

For gas and liquid tubes

For gas and liquid tube flare nuts

For drain hose joint

For securing drain hose

For drain joint

For sealing recessed por tion of power supply

or flare and drain insulators

* Booster cable is housed inside the electrical component box.

Washer

Connector for changeover to HT tap.

 Use 3/8" for suspending bolts.  Field supply for suspending bolts and nuts.

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 11

Table 1-8 (Concealed-Duct High Static Pressure)

Part Name Figure

Q’ty

Remarks

Special washer 8

Flare insulator 2

Drain socket 1

Tube connector 1

For suspending indoor unit from ceiling

For gas and liquid tubes

For drain pipe connection

For increasing size of liquid tube from ø6.35 to ø9.52 mm (only for 73 type)

Table 1-9 (Floor-Standing & Concealed Floor-Standing)

Part Name Figure

Q’ty

Remarks

Connection pipe 1

Flare insulator 2

Insulating tape 2

Vinyl clamp

Insulating tape (black and long)

Drain insulator

For connecting gas tubes

For gas and liquid tubes

For gas and liquid tube flare nuts

For gas and liquid tubes

For ends of flare insulator

For drain pipe

For drai

n hose joint

(White)

(Black)

Table 1-10 (Outdoor Unit)

Figure

Q’ty

Tube Discharge Assy

Part name

Instruction manual

paper

hp = horsepower

04 Model

(4 hp)

05 Model

(5 hp)

06 Model

(6 hp)

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 12

Table 1-13 Indoor Unit Tubing Connection (1, 2...

n–1

)

(mm)

ø15.88

ø9.52

Unit: mm

ø6.35

ø12.7

Gas tubing

(mm)

Liquid tubing

Indoor unit type 22 28 36 56 73 106 140

ø9.52

ø15.88

ø9.52

ø12.7

(mm)

–

7.1

(2.5 hp)

7.1

(

2.5

hp)

15.5

(6 hp)

Below kW

Over kW

Total capacity after distribution

Tubing size

Gas tubing

Liquid tubing

hp = horsepower

Unit: mm

1-5. Tubing Size

Table 1-11 Main Tubing Size (LA)

ø19.05

Unit: mm

15.5

14.0

ø9.52

ø15.88

11.2

System horsepower

Gas tubing (mm)

Liquid tubing (mm)

Table 1-12 Main Tubing Size After Distribution (LB, LC...)

Note: In case the total capacity of connected indoor units exceeds the total capacity of the outdoor units, select the main

tubing size for the total capacity of the outdoor units.

Note: When only one indoor unit is connected to a 6-hp outdoor unit, connect ø19.05 gas tubing up to just before the indoor

unit, then use a socket or similar device (field supply) to change the tube diameter to ø15.88 and connect the gas tube to the indoor unit.

Material O

Copper tubing

Outer diameter 6.35 9.52 12.7 15.88

Wall thickness 0.8 0.8 0.8 1.0

1.0

19.05

Table 1-15 Required Copper Tubing Dimensions Unit: mm

Gas tubing size (mm)

90°

elbow

45°

elbow

U-shape tube bend (R60 100

mm)

Trap bend

12.7

0.30

0.23

0.90

2.30

15.88

0.35

0.26

1.05

2.80

19.05

0.42

0.32

1.26

3.20

Y-branch distribution joint Equivalent length conversion not needed.

Ball valve for service Equivalent length conv

ersion not needed.

1-6. Straight Equivalent Length of Joints

Design the tubing system by referring to the following table for the straight equivalent length of joints.

Table 1-14 Straight Equivalent Length of Joints

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 13

1-7. Additional Refrigerant Charge

Additional refrigerant charge amount is calculated from the liquid tubing total length as follows.

Table 1-16 Amount of Refrigerant Charge Per Meter, According to Liquid Tubing Size

Liquid tubing size Amount of refrigerant

charge/m (g/m)

ø6.35 26

ø9.52 56

Required amount of charge = (Amount of refrigerant charge per meter of each size of liquid tube × its tube length) + (...) + (...)

*Always charge accurately using a scale for weighing.

Table 1-17 Refrigerant Charge Amount at Shipment (for outdoor unit)

1-8. System Limitations

Table 1-18 System Limitations

Number of max. connectable indoor units

Outdoor units (Type)

04 05 06

6 8 9

Max. allowable indoor/outdoor capacity ratio

50 – 130%

Heat pump unit

AES04MMIH

3.5

AES05MMIH

3.5

AES06MMIH

3.5

(kg)

1-9. Tubing Length

Table 1-19 Ranges that Apply to Refrigerant Tubing Lengths and to Differences in Installation Heights

R410A distribution joint DDVI16 (for indoor unit)

Note: Do not use commercially available T-joints for the liquid tubing.

L1 L2

LCLB

* Be sure to use special R410A distribution joints (DDVI: purchased separately)

for outdoor unit connections and tubing branches.

Main tube of unit

1st branch

Unit distribution tube

2 3

n-1

Items Marks Contents Length (m)

L1 Max. tubing length

Actual length

150

Equivalent length

175

L (L2 – L3)

Difference between max. length and min.

length from the No.1 distribution joint

1, 2~ n

Max. length of each distribution tube 30

+2+~

n–1

Total max. tubing length including length of

200

each distribution tube (only liquid tubing)

When outdoor unit is installed higher than indoor unit

When outdoor unit is installed lower than indoor unit 40

H2 Max. difference between indoor units

L = Len

th, H = Height

Allowable tubing length

Allowable elevation differenc

+L1

Select the installation location so that the length and size of refrigerant tubing are within the allowable range shown in the figure below.

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 14

WARNING

Always check the gas density limit for the room in which the unit is installed.

1-10. Check of Limit Density

When installing an air conditioner in a room, it is necessary to ensure that even if the refrigerant gas accidentally leaks out, its density does not exceed the limit level for that room.

If the density could exceed the limit level, it is necessary to provide an opening between the unit and the adjacent room, or to install mechanical ventilation which is interlocked with the leak detector.

(Total refrigerant charged amount: kg)

(Min. indoor volume where the indoor unit is installed: m3)

Limit density 0.3 (kg/m3)

The limit density of refrigerant which is used in this unit is 0.3 kg/m3(ISO 5149).

The shipped outdoor unit comes charged with the amount of refrigerant fixed for each type, so add it to the amount that is charged in the field. (For the refrigerant charge amount at shipment, refer to the unit’s nameplate.)

1-11. Installing Distribution Joint

(1) Refer to “HOW TO ATTACH DISTRIBUTION

JOINT” enclosed with the optional distribution joint kit (DDVI16).

(2) In order to prevent accumulation of refrigerant oil in

stopped units, if the main tubing is horizontal then each branch tubing length should be at an angle that is greater than horizontal. If the main tubing is vertical, provide a raised starting portion for each branch.

(3) If there are height differences between indoor units

or if branch tubing that follows a distribution joint is connected to only 1 unit, a trap or ball valve must be added to that distribution joint. (When adding the ball valve, locate it within 40 cm of the distribution joint.) (Consult with ARGO separately concerning the ball valve.)

If a trap or ball valve is not added, do not operate the system before repairs to a malfunctioning unit are completed. (The refrigerant oil sent through the tubing to the malfunctioning unit will accumulate and may damage the compressor.)

Minimum indoor volume & floor area as against the amount of refrigerant is roughly as given in the following table.

40.5

54.0

20 30 40 50 60 70 80 kg

67.5

81.0

94.5

108.0

121.5

135.0

148.5

162.0

175.5

189.0

202.5

216.0

229.5

243.0

256.5

270.0

Total amount of refrigerant

Min. indoor floor area

(when the ceiling is 2.7 m high)

Min. indoor volume

Range below the density limit of

0.3 kg/m

(Countermeasures not needed)

Range above the density limit of

0.3 kg/m

(Countermeasures needed)

100

15 to 30°

Tube branching methods (horizontal use)

Arrow view

Horizontal line

View as seen from arrow

Ball valve

(BV: purchased

separately)

Main tubing

Types of vertical trap specifications

(If only 1 unit is connected, a ball valve is also needed on this side.)

Indoor unit (1)

(When not using ball valve)

(When using ball valve)

Branch tubing is directed upward.

(Each unit is connected to tubing that is either level or is directed downward.)

Main tubing

Indoor unit

More than 20 cm

Indoor unit (more than 2 units)

Horizontal

Indoor unit is directed downward

CAUTION

Pay special attention to any location, such as a basement, etc., where leaking refrigerant can accumulate, since refrigerant gas is heavier than air.

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 15

DDVI16 Use: For indoor unit (Capacity after distribution joint is 22.4 kW or less.)

Table 1-21 Dimension for Connections of Each Part

Unit: mm

210 55

145

135

185

103

G H

Insulator

Gas tube Liquid tube

Example: (F below indicates inner diameter. below indicates outer diameter.)

• When creating a tube of diameter G, use a tube cutter and cut between F and H. Cut at a point as close to H as possible.

Position A B C D E F G H I J

Dimension – – – – – ø19.05 ø15.88 ø12.7 ø9.52 ø6.35

1-12. Optional Distribution Joint Kit

See the installation instructions packaged with the distribution joint kit for the installation procedure.

Table 1-20

Model name Cooling capacity after distribution Remarks

DDVI16 22.4 kW or less For indoor unit

1-13. Optional Ball Valve Kit

Table 1-22

1. Because the diameter of this ball valve is approximately the same as the inner diameter of the connecting copper tube, correction for pressure loss is not necessary.

2. Airtightness must be 3.6 MPa or more.

It is recommended that the ball valve is installed at each outdoor unit (gas tube and liquid tube), in order to prevent refrigerant from being released into the atmosphere if the outdoor unit is eventually replaced.

NOTE

Model No.

Gas tube Liquid tube

BV-RXP160AG 15.88

BV-RXP56AG 12.7

9.52

6.35

Valve connecting tube size (mm) Indoor unit where used

16.0 kW or less

5.6 kW or less

Total capacity of indoor units after the valve

Service port

30˚

Insulator

(divided in 2)

ø6.35 (1/4") ø9.52 (3/8") ø12.7 (1/2") ø15.88 (5/8")

BCD

72 76 89

108

42 42 42 51

54 54 58 68

16 16 20 22

44 44 51 56

Type with flare nut at each end

Dimensions

Size

Figure

Dimensions

Unit: mm

Note: Install the service port so that it faces the extension side.

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 16

Ball Valve Installation (for refrigerant R410A only)

Check the size of the ball valve set you separately purchased.

1. Installing the ball valve

(1) If the ball valve is to be installed for indoor unit

extension, or near an indoor unit, install it so that the service port faces the indoor unit side. (This facilitates indoor unit leak testing and vacuum procedures.) Install the ball valve as close as possible to the distribution joint.

CAUTION

This ball valve is for use only in systems that utilize refrigerant R410A. The service port connection size is ø7.94. The face-to-face distance between the ø12.7 or ø15.88 flare nuts is 26 mm or 29 mm, respectively. Be sure to use only the supplied flare nuts. Be careful to use the correct tools and materials.

2. Flare nut tightening

The flare nut on the service port side is fully tightened. Recommended tightening torque is (8~10 N·m).

If the valve is used for extension, it can be used as-is. In all other cases, use 2 monkey wrenches in combination to loosen the flare nut.

Outdoor unit

Indoor

Indoor unit

Service port

Ball valve

Outdoor

Indoor unit extension

Model name Size

BV-RXP56AG ø6.35 • ø12.7

BV-RXP160AG ø9.52 • ø15.88

Service port

Fully tightened (this side only)

Plug (this side only)

Cool with damp shopcloth or other means when heating brazed plug with torch.

Service port Tightening torque (8~10 N

•m)

Valve cap Tightening torque (19~21 N

•m)

These valves are flare-nut type.

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 17

1-14. Recommended Location of Ball Valves

 Select a valve location that allows service to be easily provided for each unit or each refrigerant system.

(1) When adding ball valve for indoor unit

Outdoor unit

Distribution tube

Distribution joint

Main tube

Ball valve (for extension)

Less than 40 cm

Indoor unit for extension

Distribution tube

Main tube

Ball valve (for extension)

Indoor unit for extension

3. Opening and closing the valve

This valve is open at the time of shipment from the factory. If the valve is used for extension, be sure to close it.

4. Installing thermal insulation

The thermal insulation used for a flare-nut type valve is in the form of a bag. When the valve is used for extension, it can be used as-is. If the valve is used for any other purpose, use a box cutter or similar tool to cut away the part shown in the figure at right. The insulation is divided into 2 parts. After performing the leak test, use vinyl tape or other means to temporarily fasten the 2 parts together. Then carry out final finishing.

Valve opened

Spindle

Valve closed

Spindle

Notch

Insulator

1. Location: Install the ball valve at the distribution tube (not main tube).

2. Installation requirements

• Be sure to install the ball valve up-grade to prevent the inadvertent flow of oil.

• Install the ball valve at the shortest distance (within 40 cm) from the main tube. If the diameter of the ball valve is smaller than that of the main tube, use a reducer or the like to reduce the size of the tubing at that location.

• Select a place where it is easy to operate, using careful consideration of the location in advance.

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 18

1-15. Example of Tubing Size Selection and Refrigerant Charge Amount

Additional refrigerant charging

Based on the values in Tables 1-11, 1-12, 1-13 and 1-16, use the liquid tubing size and length, and calculate the amount of additional refrigerant charge using the formula below.

= [56 × (a) + 26 × (b)] × 10

–3

(a): Liquid tubing Total length of ø9.52 (m) (b): Liquid tubing Total length of ø6.35 (m)

 Charging procedure

Be sure to charge with R410A refrigerant in liquid form.

1. After performing a vacuum, charge with refrigerant from the liquid tubing side. At this time, all valves must be in the “fully closed” position.

2. If it was not possible to charge the designated amount, operate the system in Cooling mode while charging with refrigerant from the gas tubing side. (This is performed at the time of the test run. For this, all valves must be in the “fully open” position.) Charge with R410A refrigerant in liquid form. With R410A refrigerant, charge while adjusting the amount being fed a little at a time in order to prevent liquid refrigerant from backing up.

 After charging is completed, turn all valves to the “fully open” position.

 Replace the tubing covers as they were before.

Required additional refrigerant charge (kg)

CAUTION

1. R410A additional charging absolutely must be done through liquid charging.

2. The R410A refrigerant cylinder has a gray base color, and the top part is pink.

3. The R410A refrigerant cylinder includes a siphon tube. Check that the siphon tube is present. (This is indicated on the label at the top of the cylinder.)

4. Due to differences in the refrigerant, pressure, and refrigerant oil involved in installation, it is not possible in some cases to use the same tools for R22 and for R410A.

Tightening torque for valve stem cap: 19~21 N·m

Tightening torque for valve stem cap: 28~32 N·m

Tightening torque: 34~42 N·m

Tightening torque: 68~82 N·m

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 19

Checking of limit density

Density limit is determined on the basis of the size of a room using an indoor unit of minimum capacity. For instance, when an indoor unit is used in a room (floor area 7.43 m

× ceiling height 2.7 m = room volume

20.06 m3), the graph at right shows that the minimum room volume should be 14.1 m3(floor area 5.2 m2) for refrigerant of 4.238 kg. Accordingly, openings such as louvers are required for this room.

Overall refrigerant charge amount for the air conditioner: kg

(Minimum room volume for indoor unit: m3)

4.238 (kg) + 3.5 (kg) = 0.39 (kg/m

) ≥ 0.3 (kg/m3)

20.06 (m

)

Therefore, openings such as louvers are required for this room.

 Obtain charge amount for each tubing size

Note that the charge amounts per 1 meter are different for each liquid tubing size. ø9.52 → LA + LB + LC + LD : 65 m × 0.056 kg/m = 3.64 kg ø6.35 → 1 + 2 + 3 + 4 + 5 : 23 m × 0.026 kg/m = 0.598 kg

Total 4.238 kg

Additional refrigerant charge amount is 4.238 kg.

Be sure to check the limit density for the room in which the indoor unit is installed.

CAUTION

 Example of each tubing length

Main tubing Distribution joint tubing

LA = 40 m Indoor side LB = 5 m 1 = 5 m 4 = 6 m LC = 5 m 2 = 5 m 5 = 5 m LD = 15 m 3 = 2 m

L1 L2

LCLB

Main tube of unit

1st branch

model 22 model 28 model 36 model 56

model 73

Unit distribution tube

2 3 4

Example:

108.0

94.5

81.0

67.5

54.0

40.5

27.0

13.5

10 20 30

Total amount of refrigerant

Min. indoor floor area

(when the ceiling is 2.7 m high)

Range below the density limit of 0.3 kg/m

(countermeasures not needed)

Range above the density limit of 0.3 kg/m

(countermeasures needed)

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 20

2. SELECTING THE INSTALLATION SITE

2-1. Indoor Unit

AVOID:

 areas where leakage of flammable gas may be

expected.

 places where large amounts of oil mist exist.

 direct sunlight.

 locations near heat sources which may affect the

performance of the unit.

 locations where external air may enter the room

directly. This may cause “sweating” on the air discharge ports, causing them to spray or drip.

 locations where the remote controller will be splashed

with water or affected by dampness or humidity.

 installing the remote controller behind curtains or fur-

niture.

 locations where high-frequency emissions are gener-

ated.

DO:

 select an appropriate position from which every cor-

ner of the room can be uniformly cooled.

 select a location where the ceiling is strong enough

to support the weight of the unit.

 select a location where tubing and drain pipe have

the shortest run to the outdoor unit.

 allow room for operation and maintenance as well as

unrestricted air flow around the unit.

 install the unit within the maximum elevation differ-

ence above or below the outdoor unit and within a total tubing length (L) from the outdoor unit as detailed in Table 1-19.

 allow room for mounting the remote controller about

1m off the floor, in an area that is not in direct sunlight nor in the flow of cool air from the indoor unit.

Air delivery will be degraded if the distance from the floor to the ceiling is greater than 3 m (for ASBS type, greater than 3.5 m).

NOTE

Concealed-Duct Type

4-Way Semi-Concealed Type

1 m

2-Way,

Wall-Mounted Type

min.15 cm

Front View

min. 15 cm

Floor-Standing, Concealed Floor-Standing Type

min.

10 cm

min. 100 cm

min. 10 cm

min. 100 cm

Horizontal view Vertical view

Ceiling-Mounted Type

Side view

min. 25 cm

The rear of the indoor unit can be installed flush against the wall.

min. 50 cm

Air intake

Air discharge

min. 25 cm

Ceiling

Wall

NOTE

Front view

Max. 25 cm

Obstacle

Fig. 2-1

Fig. 2-2

100

min. 5 cm

min. 1 m

Air intake

Air discharge

Obstacle

Ceiling

Wall

Side view

Semi-Concealed Type Semi-Concealed Slim Type

1-Way Semi-Concealed & Slim Type

Fig. 2-3

Fig. 2-5

Fig. 2-4

NOTE

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 21

2-2. Outdoor Unit

AVOID:

 heat sources, exhaust fans, etc. (Fig. 2-6)

 damp, humid or uneven locations

DO:

 choose a place as cool as possible.

 choose a place that is well ventilated and outside

air temperature does not exceed maximum 45°C constantly.

 allow enough room around the unit for air intake/

exhaust and possible maintenance. (Fig. 2-7)

 use lug bolts or equal to bolt down unit, reducing

vibration and noise.

Installation space

Distance between obstructions and the unit air inlet and outlet must be as shown below.

Fig. 2-6

Fig. 2-8

Fig. 2-9

Outdoor unit

Heat source

Hot air

Exhaust fan

Anchor bolts (4 pieces)

In case of multiple installations

 provide a solid base (concrete block, 10 × 40 cm

beams or equal), a minimum of 15 cm above ground level to reduce humidity and protect the unit against possible water damage and decreased service life. (Fig. 2-9)

 use lug bolts or equal to bolt down unit, reducing

vibration and noise.

More than 1 cm

More than 100 cm

More than 1 cm

Inlet side C

Inlet side More than 20 cm

Outlet side

(field supply)

(Ground)

Air direction chamber

(Obstruction above unit)

(Obstruction on inlet side)

CAUTION

 Concerning inlet-side distance “C” (Fig. 2-7)

The minimum for distance “C” is 15 cm if there are no obstructions on the outlet side (wall *1 side) and *2 or *4 is not present. In all other cases, the minimum for distance “C” is 20 cm.

 If the unit is installed with the outlet side facing wall *1, then there must be no obstruc-

tions on 2 of the remaining 3 sides: *2, *3, *4.

 If wall *1 is on the outlet side (Fig. 2-7), or if obstructions are present on all 3 sides *2,

*3, and *4 (Fig. 2-7), then the minimum distance for “A” and “B” is 2 m (Fig. 2-9). Even if there is no wall on the outlet side, a minimum of 100 cm is required.

Fig. 2-7

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 22

Fig. 2-10

Fig. 2-11

Fig. 2-12

2-3. Air Discharge Chamber for Top Discharge

Be sure to install an air discharge chamber in the field when:

 it is difficult to keep a space of min. 50 cm between

the air discharge outlet and an obstacle.

 the air discharge outlet is facing a sidewalk and

discharged hot air may annoy passers-by. Refer to Fig. 2-10.

2-4. Installing the Unit in Heavy Snow Areas

In locations with strong wind, snow-proof ducting should be fitted and direct exposure to the wind should be avoided as much as possible.

 Countermeasures against snow and wind

In regions with snow and strong wind, the following problems may occur when the outdoor unit is not provided with a platform and snow-proof ducting:

a) The outdoor fan may not run and damage to the

unit may occur. b) There may be no air flow. c) The tubing may freeze and burst. d) The condenser pressure may drop because of

strong wind, and the indoor unit may freeze.

2-5. Precautions for Installation in Heavy Snow

Areas

(1) The platform should be higher than the max. snow

depth. (Fig. 2-11)

(2) The 2 anchoring feet of the outdoor unit should be

used for the platform, and the platform should be installed beneath the air intake side of outdoor unit.

(3) The platform foundation must be firm and the unit

must be secured with anchor bolts.

(4) In case of installation on a roof subject to strong

wind, countermeasures must be taken to prevent the unit from being blown over.

Air discharge

In regions with significant snowfall, the outdoor unit should be provided with a platform and snow-proof duct.

Without snowproof ducting (Low platform)

With snowproof ducting (High platform)

Outdoor

Duct

Air

Unit

Intake

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 23

2-6. Dimensions of Air-Discharge Chamber Reference diagram for air-discharge chamber (field supply) For AES04/05/06MMIH

24029.5

29.5

35537317 70

Rectangular hole

300

240

35317537 70

54425 25

569

1090

997

250

310250

Unit: mm

1 Unit front, air discharge chamber

2 Unit left side, air discharge chamber

3 Unit light side, air discharge chamber

4 Reinforcement brackets, 4 locations

110660170

340

405

380

1015

2020

544

300

Wind

direction

Wind direction

940

1230

Wind direction

300

108997

Wind direction

Unit: mm

2-7. Dimensions of Outdoor Unit with Air-Discharge Chamber (field supply) For AES04/05/06MMIH

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 24

More than 2000

More than 400

More than 1500

Installation with intakes facing outletsInstallation with intakes facing

intakes or outlets facing outlets

More than 400

More than 300

More than 200

Min. 1000

Min. 200

The front and both sides must remain open.

Installation in front-rear rows

The front and top must remain open. The obstacles must be no taller than the height of the outdoor unit.

Installation in lateral rows

(2) Multiple-unit installation

The top and both sides must remain open. If there are obstacles to the front and rear of the outdoor unit, the obstacle at either the front or rear must be no taller than the height of the outdoor unit.

(1) Single-unit installation

If an air discharge chamber is used, the space shown below must be secured around the outdoor unit. If the unit is used without the required space, a protective device may activate, preventing the unit from operating.

Required space around outdoor unit

CAUTION

Unit: mm



Reference for air-discharge chamber (field supply) Required space around outdoor unit For AES04/05/06MMIH

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 25

444

645

233

732

388

1209

302

101

233

732

1209

764

150

450

500

338

500

730

778

500

Fastened by screws at 13 locations

Fastened by screws at 3 locations (also on reverse side)

Fastened by screw at 1 location (also on reverse side)

Unit anchor hole

(7 – ø 7 hole)

2-8. Dimensions of Snow Ducting Reference diagram for snow-proof vents (field supply) For AES04/05/06MMIH

Unit: mm

1 Unit top, snow-proof vent

2 Unit left side

3 Unit right side

4 Unit reverse side

5 Unit reverse side

6 Unit sides, reinforcement brackets for snow-proof vent

302

732

Wind direction

1230

1209

940

632

405

380 1015

2020

764

645

179

2-9. Dimensions of Outdoor Unit with Snow-Proof Vents (field supply) For AES04/05/06MMIH

Unit: mm

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 26

Unit: mm

Reference diagram for snow-proof vents – 1

Space requirements for setting – (1) AES04/05/06MMIH

Outdoor unit

AES04/05/06MMIH

1000 1000

Outdoor unit

AES04/05/06MMIH

HI J

500 300 1000

Min. I Min. I

Min. M

Min. N

Min. H

Min. J

(1) Single-unit installation

(2) Multiple-unit installation (2 or more units)

• Top is open:

•

Top is blocked by an obstacle:

[Obstacle to the front of unit]

Outdoor unit

AES04/05/06MMIH

AB DCEFG

150

Outdoor unit

AES04/05/06MMIH

500 150

200300 300 150 200

Min. C

Min. E

Min. F

Min. E Min. E

Min. L

Min. B

Min. A

Min. D

Min. K

Min. G

[Obstacle to the rear of unit]

(1) Single-unit installation

(3) Multiple-unit installation (2 or more units)

• Top is open:

Note: In cases 2 and 3 the height of the obstacle

must be no taller than the height of the outdoor unit.

• Top is blocked by an obstacle:

(2) Obstacles on both sides



06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 27

Reference diagram for snow-proof vents – 2

Space requirements for setting – (2) AES04/05/06MMIH

Outdoor unit

AES04/05/06MMIH

1000 150

Min. 300

Min. 1000 Min. 200

Min. 1500 Min. 2000

Min. 300

Min. 1000

Min. 200

Min. P

Min. O

(1) Single-unit installation

(2) Obstacles on both sides

[Installation in front-rear rows]

[Obstacles to the front and rear of unit]

• The top and both sides must remain open. Either the obstacle to the front or the obstacle to the rear must be no taller than the height of the outdoor unit.

Dimension Q If a snow protection duct is

attached after the unit is

installed, verify that dimension Q is 500 mm or more.

Dimension Q If a snow protection duct is

attached after the unit is installed, verify that dimension Q is 500 mm or more.

• The top and both sides must remain open. Either the obstacle to the front or the obstacle to the rear must be no taller than the height of the outdoor unit.



Unit: mm

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 28

AS1S

3. HOW TO INSTALL THE INDOOR UNIT

 1-Way Air Discharge Semi-Concealed Type

(AS1S Type)

3-1. Suspending the Indoor Unit

(1) Follow the diagrams to make the holes in the ceil-

ing. (Figs. 3-1 and 3-2)

(2) Depending on the ceiling type:

 Insert suspension bolts as shown in Fig. 3-3

 Use existing ceiling supports or construct a suitable

support as shown in Fig. 3-4.

Fig. 3-1

Fig. 3-2

Fig. 3-4

Fig. 3-3

4 – 12 × 37 oblong holes

780 (Ceiling opening dimension)

590

(Ceiling opening dimension)

652 (Suspension bolt pitch)

483

(Suspension bolt pitch)

Flared refrigerant connection outlet (gas tube)

Flared refrigerant connection outlet (liquid tube)

Power wiring outlet

Suspension lug

Drain outlet

560

268

100

115

287

Drain inspection port

Ceiling tiles

Ceiling support

Hole-in-anchor Hole-in-plug

Concrete Insert

Suspension bolt (M10 or 3/8") (field supply)

WARNING

It is important that you use extreme care in supporting the indoor unit from the ceiling. Ensure that the ceiling is strong enough to support the weight of the unit. Before hanging the unit, test the strength of each attached suspension bolt.

(3) Cut the ceiling material, if necessary.

(Figs. 3-1 and 3-2)

Unit: mm

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 29

AS1S

Fig. 3-5

Fig. 3-6

Fig. 3-7

Fig. 3-8

177

For fresh air intake (ø125 hole) A

140

Nuts and washers

Suspension bolt

Suspension lug

Upper

Lower

Double nuts

Suspension bolts

Tubing side

Suspension bolts

Ceiling material

If the system requires fresh air to be drawn into the unit, cut and remove the insulation (both externally and internally) at the location shown as in Fig. 3-5.

3-2. Placing the Unit Inside the Ceiling

(1) When placing the unit inside the ceiling, determine

the pitch of the suspension bolts.

Tubing must be laid and connected inside the ceiling when suspending the unit. If the ceiling is already constructed, lay the tubing into position for connection to the unit before placing the unit inside the ceiling.

(2) Thread the 3 hexagonal nuts and 2 washers (field

supply) onto each of the the 4 suspension bolts as shown in Fig. 3-6. Use 1 nut and 1 washer for the upper side, and 2 nuts and 1 washer for the lower side, so that the unit will not fall off the suspension lugs.

(3) The distance between the unit and the opening of

the ceiling and the distance between the bottom surface of the ceiling and the bottom surface of the flange of the unit should follow the dimensions given in Figs. 3-7 and 3-8.

When making the cuts to the insulation, be careful not to damage the drain pan.

CAUTION

Unit: mm

06-065 Mini ECO-i II for ARGO 2/8/06 4:37 PM Page 30

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