Sanyo CHDZR09053, 85464369098000, CHDZR14053, XMHX1252, XMHX1852 User Manual

0 (0)

INSTALLATION INSTRUCTIONS

– W-3WAY ECO-i System Air Conditioner – for Refrigerant R410A

This air conditioner uses the new refrigerant R410A.

NOTE External diameter of service port R410A: 5/16"

R410A Models

Indoor Units

 

Class

7

9

12

18

24

36

48

X

4-Way Air Discharge Semi-Concealed Type

 

 

XHX1252

XHX1852

XHX2452

XHX3652

 

XM

4-Way Air Discharge Semi-Concealed Type

 

 

XMHX1252 XMHX1852

 

 

 

A

1-Way Air Discharge Semi-Concealed Type

AHX0752

AHX0952

AHX1252

 

 

 

 

U

Concealed Duct Type

UHX0752

 

UHX1252

UHX1852

UHX2452

UHX3652

 

D

Concealed Duct

 

 

 

 

 

DHX3652

DHX4852

High-Static Pressure Type

 

 

 

 

 

 

 

 

 

 

 

 

 

T

Ceiling-Mounted Type

 

 

THX1252

THX1852

THX2452

 

 

 

 

 

 

 

 

 

 

 

K

Wall-Mounted Type

KHX0752

KHX0952

KHX1252

KHX1852

KHX2452

 

 

Outdoor Units

 

 

 

 

 

 

 

 

Class

90

140

 

 

 

 

 

C

ECO-i W-3WAY

CHDZ09053

CHDZ14053

 

 

 

 

 

CHDZR09053 CHDZR14053

 

 

 

 

 

 

 

 

 

 

* Refrigerant R410A is used in the outdoor units.

Optional Controllers

Timer Wired Remote Controller

RCS-TM80BG

 

Wireless Remote Controller (For U, D Types)

RCS-BH80AAB.WL

 

Wireless Remote Controller (For X Type)

RCS-SH80AAB.WL

 

Wireless Remote Controller (For XM Type)

RCS-XM18AAB.WL

 

Wireless Remote Controller (For A, T Types)

RCS-TRP80AAB.WL

 

RC Wireless Remote Controller (For K Type)

RCS-SH1AAB

 

Simplified Remote Controller

RCS-KR1AGB

 

System Controller

SHA-KC64UG

 

Intelligent Controller

SHA-KT256BA

 

Communication Adaptor

SHA-KA128AAB

 

Remote Sensor

ART-K45AGB

 

LonWorks Interface

SHA-LN16UAB

 

 

SANYO Commercial Solutions

In Canada

 

A division of SANYO North America Corporation

SANYO Canada Inc.

 

Cornerstone Business Park

1-300 Applewood Crescent

 

1062 Thorndale Avenue

Concord, Ontario

85464369098000 ©SANYO 2008

Bensenville, IL 60106, U.S.A.

L4K 5C7, Canada

 

a

 

X

XM

A

U

D

T

K

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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.

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

This symbol refers to a hazard or

WARNING unsafe practice which can result in severe personal injury or death.

This symbol refers to a hazard or

unsafe practice which can result CAUTION 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

WARNING 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.

CAUTION

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.

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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-exis- tent. 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 (lbs)

Min. volume of the indoor unit installed room (ft.3) < Density limit (oz/ft.3)

The density limit of refrigerant which is used in multi air conditioners is 0.3 oz/ft.3 (ISO 5149).

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

(1) No partition (shaded portion)

(2)When there is an effective opening with the adjacent 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).

Outdoor unit

Refrigerant tubing

Indoor unit

(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.

 

 

Refrigerant tubing

 

 

Outdoor unit

Very

 

 

small

 

Indoor unit

room

 

 

 

Small

Medium

Large room

room

room

 

Mechanical ventilation device – Gas leak detector

NOTE

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:

Outdoor unit

e.g., charged

amount (353 oz) e.g., charged amount (529 oz)

Indoor unit

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

The possible amount of leaked refrigerant gas in rooms A, B and C is 353 oz.

The possible amount of leaked refrigerant gas in rooms D, E and F is 529 oz.

3.The minimum indoor floor space compared with the amount of refrigerant is roughly as follows: (When the ceiling is 8.8 ft. high)

 

ft.3

 

 

 

 

 

 

 

 

 

 

ft.2

 

 

4000

 

 

 

 

 

 

 

 

 

 

 

454

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3500

 

Range below

 

 

 

 

 

 

398

indoorMin. floor area ceilingthe(when is 8.8 ft. high)

 

 

 

 

 

 

 

 

 

3000

 

the density limit of

 

 

 

 

341

indoorMin. volume

 

0.3 oz/ft.3

 

 

 

 

 

 

 

 

 

(countermeasures

 

 

500

 

(countermeasures

 

 

57

 

2500

 

not needed)

 

 

 

 

 

 

284

 

 

2000

 

 

 

 

 

 

 

 

 

 

 

227

 

 

1500

 

 

 

 

 

Range above

 

170

 

 

 

 

 

 

 

 

 

 

 

 

1000

 

 

 

 

 

the density limit of

 

114

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.3 oz/ft.3

 

 

 

 

 

 

0

 

 

 

 

 

needed)

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

200

400

600

800

1000

1200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

oz

 

Total amount of refrigerant

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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 Seamless Pipes and Tubes.”

For tubes of ø7/8" (ø22.22 mm) or larger, use C1220 T-1/2H material or H material, and do not bend the 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.

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

can result in system malfunction.

 

 

 

 

 

 

Unit: in. (mm)

 

 

 

 

 

 

 

 

 

Material

 

 

O

 

 

 

Copper tube

Outer diameter

1/4 (6.35)

3/8 (9.52)

1/2 (12.7)

5/8 (15.88)

3/4 (19.05)

 

 

 

 

 

 

 

 

Wall thickness

1/32 (0.8)

1/32 (0.8)

1/32 (0.8)

5/128 (1.0)

over 5/128 (1.0)

Unit: in. (mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Material

 

 

1/2 H, H

 

 

Copper tube

Outer diameter

7/8 (22.22)

1 (25.4)

1-1/8 (28.58)

1-1/4 (31.75)

1-1/2 (38.1)

1-5/8 (41.28)

 

 

 

 

 

 

 

Wall thickness

5/128 (1.0)

5/128 (1.0)

5/128 (1.0)

3/64 (1.1)

over 3/64 (1.15)

over 3/64 (1.20)

 

 

 

 

 

 

 

 

 

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 in 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 R22and R407C-type refrigerant systems cannot be used.

 

New

R407C tools

 

Item

compatible

Remarks

tool?

 

 

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.

 

 

 

 

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

4

Manifold gauge

Vacuum pump

Outlet

Inlet

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3-2. Use R410A exclusive cylinder only.

Valve

Single-outlet valve

(with siphon tube)

Liquid refrigerant should be recharged with the cylinder standing on end as shown.

New refrigerant R410A cannot be used for earlier models

1. Compressor specifications are different.

If recharging a R22 or R407C compressor with R410A, durability will significantly decrease since some of the materials used for compressor parts are different.

2. Existing tubing cannot be used (especially R22).

Completely cleaning out residual refrigerating

machine oil is impossible, even by flushing.

3. Refrigerating machine oil differs (R22).

Since R22 refrigerating machine oil is mineral oil, it does not dissolve in R410A. Therefore, refrigerating machine oil discharged from the compressor can cause compressor damage.

R22 refrigerating machine oil

Mineral oil (Suniso oil)

 

 

 

 

 

 

R407C refrigerating machine oil

Synthetic fluid (ether oil)

 

 

 

 

 

 

R410A refrigerating machine oil

Synthetic fluid (ether oil)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Liquid

R410A

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CONTENTS

Page

IMPORTANT! . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Please Read Before Starting Check of Density Limit

Precautions for Installation Using New Refrigerant

New refrigerant R410A cannot be used for earlier models

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

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

1-2. Accessories Supplied

1-3. Type of Copper Tube and Insulation Material 1-4. Additional Materials Required for Installation 1-5. Tubing Length

1-6. Tubing Size

1-7. Straight Equivalent Length of Joints

1-8. Additional Refrigerant Charge

1-9. System Limitations

1-10. Installation Standards

1-11. Check of Limit Density

1-12. Installing Distribution Joint

1-13. Optional Distribution Joint Kits

1-14. Optional Solenoid Valve Kit

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

2.SELECTING THE INSTALLATION SITE . . . . 23

2-1. Indoor Unit

2-2. Outdoor Unit

2-3. Precautions When Installing in Heavy Snow Areas

2-4. Dimensions of Wind Ducting

2-5. Dimensions of Snow Ducting

3.HOW TO INSTALL THE INDOOR UNIT . . . . . 28

4-Way Air Discharge Semi-Concealed Type (X Type)

3-1. Preparation for Suspending

3-2. Suspending the Indoor Unit

3-3. Placing the Unit Inside the Ceiling

3-4. Installing the Drain Piping

3-5. Checking the Drainage

3-6. How to Install the Ceiling Panel

3-7. Special Remarks

(XM Type)

3-8. Preparation for Suspending

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

3-13. How to Install the Ceiling Panel

Page

1-Way Air Discharge Semi-Concealed Type (A Type)

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

3-18. Electrical Power Wiring

3-19. How to Install the Ceiling Panel

Concealed Duct Type (U Type)

3-20. Required Minimum Space for Installation and Service

3-21. Suspending the Indoor Unit

3-22. Installing the Drain Piping

3-23. Checking the Drainage

3-24. Increasing the Fan Speed

Concealed Duct High-Static Pressure Type (D Type)

3-25. Required Minimum Space for Installation and Service

3-26. Suspending the Indoor Unit

3-27. Installing the Drain Piping

3-28. Caution for Ducting Work

3-29. Indoor Fan Performance

Ceiling-Mounted Type (T Type)

3-30. Required Minimum Space for Installation and Service

3-31. Suspending the Indoor Unit

3-32. Duct for Fresh Air

3-33. Shaping the Tubing

3-34. Installing the Drain Piping

Wall-Mounted Type (K Type)

3-35. Removing the Rear Panel from the Unit 3-36. Selecting and Making a Hole

3-37. Installing the Rear Panel onto the Wall 3-38. Removing the Grille to Install the Indoor Unit 3-39. Preparing the Tubing

3-40. Shaping the Tubing

3-41. Installing the Drain Hose

3-42. When Using Wireless Remote Controller

Instead of Wired Remote Controller

4.HOW TO INSTALL THE OUTDOOR UNIT . . . 64

4-1. Transporting

4-2. Installing the Outdoor Unit

4-3. Remove the Brackets Used for Transport

4-4. Routing the Tubing

4-5. Prepare the Tubing

4-6. Connect the Tubing

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Page

5.ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . 68

5-1. General Precautions on Wiring

5-2. Recommended Wire Length and Wire Diameter for Power Supply System

5-3. Wiring System Diagram

5-4. Important Note When Wiring for Common Type

5-5. Important Note When Wiring for XM Type

6. HOW TO PROCESS TUBING . . . . . . . . . . . . 76

6-1. Connecting the Refrigerant Tubing

6-2. Connecting Tubing Between Indoor and

Outdoor Units

6-3. Insulating the Refrigerant Tubing

6-4. Taping the Tubes

6-5. Finishing the Installation

7. AIR PURGING . . . . . . . . . . . . . . . . . . . . . . . . . 80

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

8.TEST RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

8-1. Preparing for Test Run

8-2. Test Run Procedure

8-3. Main Outdoor Unit PCB Setting

8-4. Auto Address Setting

8-5. Remote Controller Test Run Settings

8-6. Caution for Pump Down

8-7. Meaning of Alarm Messages

9.APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

9-1. 4-Way Air Discharge Semi-Concealed Type (X, XM Types)

9-2. 1-Way Air Discharge Semi-Concealed Type (A Type)

9-3. Concealed Duct (High-Static Pressure) Type (U, D Types)

9-4. Ceiling-Mounted Type (T Type)

9-5. Wall-Mounted Type (K Type)

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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 outdoor unit and make sure all accessory parts listed are with the system before beginning.

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

1.Flathead 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

See Tables 1-1 – 1-8.

Table 1-1 Outdoor Unit

Part name

 

Figure

 

Outer

Inner

 

diameter

diameter

Connection tubing

ø1-1/8"

ø1"

Outer

Inner

 

 

diameter

diameter

 

ø7/8"

ø3/4"

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 5/16 in.

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

Refer to “5. ELECTRICAL WIRING” for details.

Check local electrical codes and

CAUTION regulations before obtaining

wire. Also, check any specified instructions or limitations.

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

 

Q’ty

09053 Model

14053 Model

(10 hp)

(16 hp)

0

1

1

0

Instruction manual

paper

1

1

(hp = horse power)

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Sanyo CHDZR09053, 85464369098000, CHDZR14053, XMHX1252, XMHX1852 User Manual

Table 1-2 (4-Way Air Discharge Semi-Concealed) (X-Type)

Part Name

Figure

Q’ty

Remarks

Full-scale installation diagram

 

1

Printed on container box

Drain hose

 

1

For securing drain hose

Hose band

 

1

For securing drain hose

Drain insulator

 

1

For drain joint

Flare insulator

 

1

For liquid tube

 

1

For gas tube

 

 

Insulating tape

White

2

For gas tube joint

(heat-resisting)

 

 

 

Packing

 

1

For drain joint

Wiring cover

 

1

For covering electrical wiring

Screw

 

4

For full-scale installation diagram

Washer

 

8

For suspending indoor unit from ceiling

Screw

 

1

For fixing the wiring cover

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

Part Name

Figure

Q’ty

Remarks

Full-scale installation diagram

 

1

Printed on container box

Drain hose

 

1

For securing drain hose

Hose band

 

1

For securing drain hose

Drain insulator

 

1

For drain joint

Flare insulator

 

1

For liquid tube

 

1

For gas tube

 

 

Insulating tape

White

2

For gas tube joint

(heat-resisting)

 

 

 

Packing

 

1

For drain joint

Washer

 

8

For suspending indoor unit from ceiling

Screw

 

4

For full-scale installation diagram

Bushing

 

1

For electrical junction box

Table 1-4 (Concealed Duct)

Part Name

Figure

Q’ty

Remarks

Drain hose

 

1

For securing drain hose

Hose band

 

1

For securing drain hose

Packing

 

1

For drain joint

Drain insulator

 

1

For drain joint

Flare insulator

 

1

For liquid tube

Insulating tape

White

2

For gas and liquid tubes flare nuts

(heat-resisting)

 

 

 

Flare insulator

 

1

For gas tube

Washer

 

8

For suspending indoor unit from ceiling

Sealing putty

 

1

For sealing recessed portion of power supply

Vinyl clamp

 

8

For flare and drain insulators

Use M10 or 3/8" for suspending bolts.

Field supply for suspending bolts and nuts.

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Table 1-5 (Concealed Duct High-Static Pressure)

Part Name

Figure

Q’ty

Remarks

Washer

 

8

For suspending indoor unit from ceiling

Nut

 

8

For suspending indoor unit from ceiling

Flare insulator

 

1

For gas tube

 

 

 

 

 

1

For liquid tube

Drain socket

 

1

For drain pipe connection

Table 1-6 (Ceiling-Mounted)

Part Name

Figure

Q’ty

Remarks

Full-scale installation diagram

 

1

Printed on container box

Washer

 

4

For temporarily suspending indoor unit from ceiling

Flare insulator

T1/8"

2

For gas and liquid tube joints

 

 

2

 

T3/16"

 

 

 

 

Insulating tape

White

2

For gas and liquid tubes flare nuts

(heat-resisting)

Vinyl clamp

 

8

For flare and drain insulators

Drain hose

L5-1/2"

1

For main unit and PVC pipe joints

 

 

 

Hose band

 

2

For drain hose connection

Drain insulator

 

1

For drain hose joint

Gum eyelet

 

2

For power supply inlet and 3 way wiring inlet

Table 1-7 (Wall-Mounted)

Part Name

Figure

Q’ty

Remarks

Tapping screw

5/32" s 1"

10

For fixing the rear panel

Plastic cover

 

1

For improved tubing appearance

Insulator

 

1

For insulating flare nut (2452 type only)

Table 1-8 (4-Way Air Discharge Semi-Concealed) (XM Type)

Parts Name

Figure

Q'ty

Remarks

Parts Name

Figure

Q'ty

Remarks

 

 

 

For temporarily

Full-scale

 

 

Printed on

Washer

 

8

suspending indoor

installation

 

1

 

 

container box

 

 

 

unit from ceiling

diagram

 

 

 

 

 

 

 

 

Flare

T3

2

For gas /

Washer head

 

 

For full-scale

liquid tube

 

4

installation

insulation

T5

set

screw

 

connection

 

 

diagram

 

 

 

 

 

 

 

 

 

For gas /

 

 

 

For unit & PVC

Insulation tie

 

2 liquid tube / flare

Drain hose

 

1

 

L140

tube connection

 

 

 

nut connection

 

 

 

 

 

 

 

 

Vinyl tie

 

8

For flare / drain

Hose band

 

2

For drain hose

 

insulating

 

 

 

connection

 

 

 

connection

 

 

 

 

 

 

 

 

 

 

Drain hose

 

1

For drain tube

 

 

 

 

insulation

T10

connection

 

 

 

 

 

 

 

 

 

Use M10 or 3/8" for suspending bolts.

Field supply for suspending bolts and nuts.

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1-5. Tubing Length

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

in the figure below.

1.

 

Main tubing length LM = LA + LB … b 262 ft.

 

 

 

 

2.

 

Main distribution tubes LC – LH are selected according to the capacity after the

 

 

 

 

 

 

 

 

 

distribution joint.

 

 

 

3.

 

Sizes of indoor unit connection tubing 1 – 40 are determined by the connection tubing

 

 

 

 

 

 

 

 

 

sizes on the indoor units.

 

 

 

 

 

 

 

 

 

 

H3 C

 

L2

 

LM

L1

 

 

 

B

 

 

 

T-joint tubing

 

 

 

Balance tubing

LB

LC

LD

LE

(header joint system)

 

 

(ø9.52)

L3

 

 

 

 

 

 

 

 

 

 

 

 

LA

 

 

 

 

 

 

 

 

 

 

4

5

6

7

40

H1

 

 

 

 

Explanation of symbols

LF

For

 

 

 

 

 

 

extension

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Max. 1.3 ft.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution joint

 

 

 

 

 

 

 

 

 

 

 

 

For

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

extension

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(APR: purchased separately)

 

Max. 1.3 ft.

 

 

 

 

 

 

 

 

 

 

Solenoid valve kit

H2

 

 

 

 

 

 

 

 

 

LH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ball valve (field supply)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T-joint (field supply)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LG

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Solidly welded shut

 

L4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R410A distribution joint

 

 

 

 

 

 

(pinch weld)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

APR-CHRZP900BAB (for outdoor unit)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

and parts.

 

 

APR-RZP224BAB (for indoor unit)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

APR-RZP680BAB (for indoor unit)

* Be sure to use special R410A distribution joints (APR: purchased separately) for outdoor

 

 

APR-RZP1350BAB (for indoor unit)

 

unit connections and tubing branches.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 1-9 Ranges that Apply to Refrigerant Tubing Lengths and to Differences in Installation Heights

Item

Mark

L1

L (L2 – L4)

Allowable tubing

LM

length

1, 2...40

L1+ 1+ 2... 39

+

A+B+LF+LG+LH

 

L5

Allowable elevation

H1

 

difference

H2

 

H3

Allowable length of

L3

joint tubing

 

L = Length, H = Height

 

NOTE

Contents

Actual length

Max. tubing length

Equivalent length

Difference between max. length and min. length from the No. 1 distribution joint

Max. length of main tubing (at max. diameter)

Max. length of each distribution tube

Total max. tubing length including length of each distribution tube (only liquid tubing)

Distance between outdoor units

When outdoor unit is installed higher than indoor unit

When outdoor unit is installed lower than indoor unit

Max. difference between indoor units

Max. difference between outdoor units

T-joint tubing (field-supply); Max. tubing length between the first T-joint and solidly welded-shut end point

Length (ft.)

>

492

 

>

574

 

>

131

 

>

262*2

>

98

 

>

984

 

>

32

 

>

164

>

131

 

>

49

>

13

 

>

6.6

1:If the longest tubing length (L1) exceeds 295 ft. (equivalent length), increase the sizes of the main tubes (LM) by 1 rank for the discharge tubes, suction tubes, and liquid tubes. (Use a field supply reducer.)

2:If the longest main tube length (LM) exceeds 164 ft., increase the main tube size at the portion before 164 ft. by 1 rank for the suction tubes and discharge tubes. (Use a field supply reducer.)

(For the portion that exceeds 164 ft., set based on the main tube sizes (LA) listed in the table on the following page.)

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1-6. Tubing Size

 

 

 

 

 

Table 1-10 Main Tubing Size (LA)

 

Unit: in. (mm)

 

 

 

 

 

 

BTU/h

95.500

153.600

191.000

249.100

307.100

Total system

10

16

20

26

32

horsepower

 

 

 

 

 

Combined

10

16

10

16

16

outdoor units

10

10

16

 

 

Suction tubing

ø7/8"

ø1-1/8"

ø1-3/8"

(ø22.22)

(ø28.58)

(ø34.92)

 

Discharge tubing

ø3/4"

ø7/8"

ø1-1/8"

(ø19.05)

(ø22.22)

(ø28.58)

 

Liquid tubing

ø3/8"

ø1/2"

ø5/8"

ø3/4"

(ø9.52)

(ø12.70)

(ø15.88)

(ø19.05)

 

*1: If future extension is planned, select the tubing diameter based on the total horsepower after extension. However extension is not possible if the resulting tubing size is two ranks higher.

*2: The balance tube (outdoor unit tube) diameter is ø3/8" (ø9.52). *3: Type 1 tubing should be used for the refrigerant tubes.

*4: If the length of the longest tube (L1) exceeds 295 ft. (equivalent length), increase the main tube (LM) size by 1 rank for the suction, discharge, and liquid tubes. (Use field-supply reducers.) (Select from Table 1-10 and Table 1-15.)

*5: If the longest main tube length (LM) exceeds 164 ft., increase the main tube size at the portion before 164 ft. by 1 rank for the suction tubes and discharge tubes.

(For the portion that exceeds 164 ft., set based on the main tube sizes (LA) listed in the table above.)

Table 1-11 Main Tubing Size After Distribution (LB, LC...)

Unit: in. (mm) hp = horsepower

 

Below BTU/h

24.200

54.600

85.300

102.400

124.200

143.300

162.400

200.600

238.900

Total capacity

(2.5 hp)

(6 hp)

(9 hp)

(11 hp)

(13 hp)

(15 hp)

(17 hp)

(21 hp)

(25 hp)

 

after distribution

Over BTU/h

24.200

54.600

85.300

102.400

124.200

143.300

162.400

200.600

 

(2.5 hp)

(6 hp)

(9 hp)

(11 hp)

(13 hp)

(15 hp)

(17 hp)

(21 hp)

 

 

 

 

Suction tubing

ø5/8"

ø3/4"

ø3/4"

ø7/8"

ø1-1/8"

ø1-1/8"

ø1-1/8"

ø1-1/8"

ø1-1/8"

 

(ø15.88)

(ø19.05)

(ø19.05)

(ø22.22)

(ø28.58)

(ø28.58)

(ø28.58)

(ø28.58)

(ø28.58)

 

 

Tubing size

Discharge tubing

ø1/2"

ø5/8"

ø5/8"

ø3/4"

ø3/4"

ø7/8"

ø7/8"

ø7/8"

ø1-1/8"

(ø12.70)

(ø15.88)

(ø15.88)

(ø19.05)

(ø19.05)

(ø22.22)

(ø22.22)

(ø22.22)

(ø28.58)

 

 

 

Liquid tubing

ø3/8"

ø3/8"

ø3/8"

ø3/8"

ø1/2"

ø1/2"

ø1/2"

ø5/8"

ø5/8"

 

(ø9.52)

(ø9.52)

(ø9.52)

(ø9.52)

(ø12.70)

(ø12.70)

(ø12.70)

(ø15.88)

(ø15.88)

 

 

Total capacity

Below BTU/h

258.000

334.400

(27 hp)

(35 hp)

 

 

after distribution

Over BTU/h

238.900

258.000

334.400

 

(25 hp)

(27 hp)

(35 hp)

 

 

 

Suction tubing

ø1-3/8"

ø1-3/8"

ø1-1/2"

 

(ø34.93)

(ø34.93)

(ø38.10)

 

 

Tubing size

Discharge tubing

ø1-1/8"

ø1-1/8"

ø1-1/8"

(ø28.58)

(ø28.58)

(ø28.58)

 

 

 

Liquid tubing

ø3/4"

ø3/4"

ø3/4"

 

(ø19.05)

(ø19.05)

(ø19.05)

 

 

*1: If the total capacity of the indoor units connected to the tube ends is different from the total capacity of the outdoor units, then the main tube size is selected based on the total capacity of the outdoor units.

(For LA, LB, and LF in particular)

Table 1-12 Outdoor Unit Tubing Connection Size (A D)

BTU/h

95.500

153.600

 

Suction tubing

ø7/8"(ø22.22)

ø1-1/8"(ø28.58)

 

Brazing connection

 

 

 

Discharge

ø3/4"(ø19.05)

ø7/8"(ø22.22)

 

tubing

Brazing connection

 

 

 

 

 

Liquid tubing

ø3/8"(ø9.52)

ø1/2"(ø12.7)

 

Brazing connection

 

 

 

Balance tubing

ø3/8"(ø9.52)

 

Flare connection

Unit: in. (mm)

 

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Table 1-13 Indoor Unit Tubing Connection Size ( 1 40)

 

 

 

in. (mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Indoor unit type

7

9

 

12

18

24

36

48

Total system horsepower

0.8

1

 

1.3

2

3

4

5

Distribution

Suction tubing

 

 

 

 

ø5/8"

 

 

 

 

 

 

 

 

(ø15.88)

 

 

 

 

joint –

 

 

 

 

 

 

 

 

 

Discharge tubing

 

 

 

 

ø1/2"

 

 

 

 

solenoid valve

 

 

 

 

(ø12.70)

 

 

 

 

kit tubing

Liquid tubing

 

 

 

 

ø3/8"

 

 

 

 

 

 

 

 

 

(ø9.52)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Solenoid valve

Gas tubing

 

 

ø1/2"

 

 

 

ø5/8"

 

kit – Indoor

 

 

(ø12.70)

 

 

 

(ø15.88)

 

 

 

 

 

 

 

 

 

 

 

unit tubing

 

 

 

 

 

 

 

 

 

 

Liquid tubing

 

 

ø1/4"

 

 

 

ø3/8"

 

connection

 

 

 

 

 

 

 

 

(ø6.35)

 

 

 

(ø9.52)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*1: For the solenoid valve kits, use type 160 with parallel specifications. Branch the tubing before and after the solenoid valve kits.

1-7. 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

Gas tubing size (in.(mm))

1/2"

5/8"

3/4"

7/8"

1"

1-1/8"

1-1/4"

1-1/2"

(12.7)

(15.88)

(19.05)

(22.22)

(25.4)

(28.58)

(31.8)

(38.1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 ft.

1.1 ft.

1.4 ft.

1.6 ft.

1.7 ft.

1.9 ft.

2.3 ft.

2.6 ft.

90ooelbow

 

 

(0.30 m)

(0.35 m)

(0.42 m)

(0.48 m)

(0.52 m)

(0.57 m)

(0.70m)

(0.79 m)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45ooelbow

0.8 ft.

0.9 ft.

1 ft.

1.2 ft.

1.3 ft.

1.4 ft.

1.7 ft.

1.9 ft.

(0.23 m)

(0.26 m)

(0.32 m)

(0.36 m)

(0.39 m)

(0.43 m)

(0.53 m)

(0.59 m)

 

 

 

 

U-shape tube bent

3 ft.

3.4 ft.

4.1 ft.

4.7 ft.

5.1 ft.

5.6 ft.

6.9 ft.

7.8 ft.

(R2–23/64–3–15/16 in.)

(0.90 m)

(1.05 m)

(1.26 m)

(1.44 m)

(1.56 m)

(1.71 m)

(2.10 m)

(2.37 m)

 

 

 

 

 

 

 

 

 

 

 

 

Trap bend

7.5 ft.

9.2 ft.

10.5 ft.

12.5 ft.

14.1 ft.

15.4 ft.

16.4 ft.

14.0 ft.

(2.30 m)

(2.80 m)

(3.20 m)

(3.80 m)

(4.30 m)

(4.70 m)

(5.00 m)

(5.80 m)

 

 

 

 

Y-branch distribution joint

 

 

Equivalent length conversion not needed.

 

 

 

 

 

 

 

 

 

Ball valve for service

 

 

Equivalent length conversion not needed.

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 1-15 Refrigerant tubing (Existing tubing can be used.)

Tubing size (in. (mm))

Material O

 

Material 1/2H • H

 

 

 

 

 

ø1/4" (ø6.35)

 

t1/32 (t0.8)

 

 

 

 

 

 

 

ø3/8" (ø9.52)

 

t1/32 (t0.8)

ø1-1/8" (ø28.58)

t5/128 (t1.0)

 

 

 

 

 

ø1/2" (ø12.7)

 

t1/32 (t0.8)

ø1-1/4" (ø31.75)

t3/64 (t1.1)

 

 

 

 

 

ø5/8" (ø15.88)

 

t5/128 (t1.0)

ø1-1/2" (ø38.10)

over t3/64 (t1.15)

 

 

 

 

ø3/4" (ø19.05)

over t5/128 (t1.0)

ø1-5/8" (ø41.28)

over t3/64 (t1.20)

 

 

 

 

 

ø7/8" (ø22.22)

 

t5/128 (t1.0)

 

 

 

 

 

 

 

1-8. Additional Refrigerant Charge

*When bending the tubes, use a bending radius that is at least 4 times the outer diameter of the tubes.

In addition, take sufficient care to avoid crushing or damaging the tubes when bending them.

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

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

Liquid tubing

ø1/4"

ø3/8"

ø1/2"

ø5/8"

ø3/4"

ø7/8"

size

(ø6.35)

(ø9.52)

(ø12.7)

(ø15.88)

(ø19.05)

(ø22.22)

Amount of

 

 

 

 

 

 

refrigerant

0.279

0.602

1.38

1.99

2.78

3.93

charge (oz/ft.)

 

 

 

 

 

 

Table 1-16-2 Necessary Amount of Refrigerant

Charge Per Unit

CHDZ09053

CHDZ14053

CHDZR09053

CHDZR14053

113 oz/unit

Required amount of charge = Necessary Amount of Refrigerant Charge Per Unit (14053 Type) + (Amount of refrigerant charge per ft. of each size of liquid tube

×its tube length) + (...) + (...)

*Always charge accurately using a scale for weighing.

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

DC

CHDZ09053

CHDZ14053

CHDZR09053

CHDZR14053

(oz)

 

 

416

416

 

 

 

 

1-9. System Limitations

Table 1-18 System Limitations

Max. No. allowable connected outdoor units

2

 

 

Max. capacity allowable connected outdoor units

307,100 BTU/h (32 hp, 90 kw)

 

 

Max. connectable indoor units

40 *1

Max. allowable indoor/outdoor capacity ratio

50 – 130 %

 

 

*1: In the case of 20 hp (type 191.100 BTU/h) or smaller units, the number is limited by the total capacity of the connected indoor units.

1-10. Installation Standards

Relationship between A/C units and refrigerant tubing

Outdoor unit

4-tube layout

Outdoor unit

3-tube layout

Solenoid

2-tube layout

Indoor unit

 

 

valve kit

 

 

Suction tube

 

Suction tube

Gas tube

 

 

 

 

 

 

Discharge tube

 

Discharge tube

 

Liquid tube

 

 

Liquid tube

 

Liquid tube

 

 

 

 

Balance tube

 

 

 

 

 

Install the solenoid valve kit 98 ft. or less from the indoor unit.

In quiet locations such as hospitals, libraries, and hotel rooms, the refrigerant noise may be somewhat noticeable. It is recommended that the solenoid valve kit be installed inside the corridor ceiling, at a location outside the room.

Room

 

Room

NO

Room

 

Room

Indoor unit

 

Indoor unit

Indoor unit

 

Indoor unit

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hallway

 

 

 

 

 

 

 

Hallway

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Solenoid valve kit

Solenoid valve kit

Common solenoid valve kit

Multiple indoor units under group control can utilize a solenoid valve kit in common.

Categories of connected indoor unit capacities are determined by the solenoid valve kit.

Type of solenoid valve kit

Total capacity of indoor units (BTU/h)

 

 

160

19.000 < Total capacity < 54.600

 

 

56

7.500 < Total capacity < 19.000

 

 

If the capacity range is exceeded, use 2 solenoid valves connected in parallel.

14

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Always check the gas density

WARNING limit for the room in which the unit is installed.

1-11. 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 a leak detector.

(Total refrigerant charged amount: oz)

(Min. indoor volume where the indoor unit is installed: ft.3) < Limit density 0.3 (oz/ft.3)

The limit density of refrigerant which is used in this unit is 0.3 oz/ft.3 (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.)

1-12. Installing Distribution Joint

Pay special attention to any

CAUTION location, such as a basement, etc., where leaking refrigerant

can accumulate, since refrigerant gas is heavier than air.

(1)Refer to “HOW TO ATTACH DISTRIBUTION JOINT” enclosed with the optional distribution joint kit (APR-CHRZP900BAB, RZP224BAB, RZP680BAB, RZP1350BAB).

(2)When creating a branch using a commercially available T-joint (header joint system), orient the main tubing so that it is either horizontal (level) or vertical. 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.

[Header joint system]

Be sure to solidly weld shut the T-joint end (marked by “X” in the figure). In addition, pay attention to the insertion depth of each connected tube so that the flow of refrigerant within the T-joint is not impeded.

When using the header joint system, do not make further branches in the tubing.

Do not use the header joint system on the outdoor unit side.

(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 15 - 3/4" of the distribution joint.)

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

15

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.

 

ft.3

 

 

 

 

 

 

 

 

 

 

 

 

 

ft.2

 

 

 

10000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1136

 

 

indoorMin.volume

9500

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1079

indoorMin.floor area

ceilingthe(whenis 8.8 ft. high)

 

 

 

 

 

the density

limit of

 

 

2000

 

 

 

 

 

 

 

227

 

9000

 

Range below

 

 

 

 

 

 

 

 

 

1022

 

 

 

8500

 

the density limit of

 

 

 

 

 

 

 

966

 

 

 

8000

 

0.3 oz/ft.3

 

 

 

 

 

 

 

 

 

909

 

 

 

7500

 

 

 

 

 

 

 

 

 

 

852

 

 

 

7000

 

(countermeasures

 

 

 

 

 

 

 

795

 

 

 

6500

 

not needed)

 

 

 

 

 

 

 

 

 

738

 

 

 

6000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

682

 

 

 

5500

 

 

 

 

 

 

 

 

 

 

 

 

 

 

625

 

 

 

5000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

568

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4500

 

 

 

 

 

 

 

 

 

 

 

 

 

 

511

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

454

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3500

 

 

 

 

 

 

 

 

 

 

 

 

 

 

398

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3000

 

 

 

 

 

Range above

 

 

 

 

 

341

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2500

 

 

 

 

 

 

 

 

 

 

284

 

 

 

 

 

 

 

 

0.3 oz/ft.3

 

 

 

 

 

 

 

 

1500

 

 

 

 

 

 

 

 

 

 

170

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1000

 

 

 

 

 

(countermeasures

 

 

114

 

 

 

 

 

 

 

 

 

 

 

 

 

500

 

 

 

 

 

needed)

 

 

 

 

 

57

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

500

1000

1500

2000

2500

3000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

oz

 

 

Total amount of refrigerant

Tube branching methods (horizontal use)

 

to

30

15

 

 

 

 

 

 

 

 

B

 

 

A

Horizontal

A

 

B

line

View as seen

 

 

 

 

 

 

 

 

 

from arrow

 

 

Arrow view

 

 

Header joint system (Indoor)

 

 

Install at a

 

 

 

 

 

positive angle

 

 

Outdoor

 

Indoor

 

 

 

 

 

 

 

 

 

 

 

 

 

Install at a

Indoor

 

 

 

 

positive angle

 

 

 

 

(15 – 30°)

 

 

 

 

 

Horizontal

 

 

 

 

line

 

 

 

 

 

 

 

Indoor

 

 

 

L3

6.56 ft.

Horizontal

Solidly welded

 

 

line

 

shut (X)

 

 

 

 

Types of vertical trap specifications

(When using ball valve)

 

 

Main tubing

 

 

 

 

Ball valve

Indoor unit (more than 2 units)

(If only 1 unit is connected, a ball valve

(BV: purchased

separately)

is also needed on this side.)

Indoor unit (1)

 

 

 

 

(When not using ball valve)

 

Main tubing

 

Horizontal

 

 

 

 

 

 

 

 

Indoor unit

(Each unit is connected

Branch tubing is

 

to tubing that is either

 

level or is directed

directed upward.

 

 

downward.)

 

More than

 

 

 

 

 

 

7–7/8"

 

 

 

Indoor unit is directed downward

 

 

 

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Unit: in.

1-13. Optional Distribution Joint Kits

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

Table 1-19

Model name

Cooling capacity after distribution

Remarks

 

 

 

 

1. APR-CHRZP900BAB

307.100

BTU/h or less

For outdoor unit

 

 

 

 

2. APR-RZP224BAB

76.400

BTU/h or less

For indoor unit

 

 

 

 

3. APR-RZP680BAB

232.000

BTU/h or less

For indoor unit

 

 

 

 

4. APR-RZP1350BAB

460.700

BTU/h or less

For indoor unit

 

 

 

 

Tubing size (with thermal insulation)

1.APR-CHRZP900BAB

For outdoor unit (Capacity after distribution joint is 307.100 BTU/h or less.)

Note that the dimension marked with every alphabetical letter in the diagram shows the inner diameter.

Suction Tube

 

 

Discharge Tube

 

 

Liquid Tube

11-13/16

 

 

 

11-13/16

 

 

 

 

G

 

#C

 

 

#C

 

 

 

 

F

B C

C D E

E D C

C

D E F

I H

GF E

E

 

 

 

 

 

 

 

 

E FG H I

 

#C

 

 

 

 

 

 

 

13-25/64

Distribution

 

 

#C

 

 

 

 

 

Joint

D

 

 

 

 

 

 

 

 

 

 

 

D

 

 

 

 

 

 

E

 

 

E

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

Insulation

 

 

Insulation

 

 

 

Insulation

*Insulators for both the Suction tube and the Discharge tube are the same.

*Suction tube and Discharge tube are similar in sizes and both the tube entrances have the same diameter. So the both Distribution joints can fit into different tubes. Since the diameter of the tube ends for both Suction and Discharge tube are different, take care not to connect the distribution joint different. See the " # " marks on the above figures.

Table 1-20 Dimensions for connections of each part

Size

Part B

Part C

Part D

Part E

Part F

Part G

Part H

Part I

Inch

1-1/4

1-1/8

1

7/8

3/4

5/8

1/2

3/8

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Insulation Unit: in.

Table 1-21 Dimensions for connections of each part

 

 

 

 

Unit: in.

 

 

 

 

 

 

 

 

 

 

 

Position

A

B

C

D

E

F

G

H

I

J

Dimension

ø1-1/2"

ø1-1/4"

ø1-1/8"

ø1"

ø7/8"

ø3/4"

ø5/8"

ø1/2"

ø3/8"

 

 

 

 

 

 

 

 

 

 

 

2.APR-RZP224BAB

Use: For indoor unit (Capacity after distribution joint is 76.400 BTU/h or less.)

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

Suction tubing

 

 

 

8–17/64

 

 

G

F

F

F

F

15/32

 

 

 

 

 

2–11/64

 

 

 

G H

 

 

 

F

 

 

 

 

 

 

3–5/8

 

 

 

F

 

 

 

 

G

 

 

 

 

H

2–11/64

 

 

 

5–45/64

 

 

 

 

Discharge tubing

 

7–21/64

 

 

 

G H

H

H

H G

9/32

1–37/64

 

H

 

 

 

 

 

3–1/32

 

 

H

 

 

 

G

 

 

 

 

 

 

5–23/64

 

 

 

Thermal insulation

Thermal insulation

 

Liquid tubing

 

 

 

9–1/4

 

 

 

I

 

 

 

H

2–23/32

I

H

H I

 

Thermal insulation

Unit: in.

3.APR-RZP680BAB

Use: For indoor unit (Capacity after distribution joint is greater than 76.400 BTU/h and no more than 232.000 BTU/h.)

Note that the dimension marked with every alphabetical letter in the diagram shows the inner diameter.

Suction Tube

 

Discharge Tube

Liquid Tube

 

11-13/16

 

 

11-13/16

 

 

I

 

 

#C

 

 

 

H

 

F E D C

DE F G

F E D C

#D E F GH

 

G

 

 

 

F

 

 

 

 

 

I H

GFE

E

E FG H I

 

 

 

 

 

 

#C

 

 

#D

 

13-25/64

 

 

D

 

 

E

 

 

 

 

E

 

 

F

 

 

 

Insulation

F

 

Insulation

G

 

 

 

G

 

H

 

 

 

*Insulators for both the Suction tube and the Discharge tube are the same. *Suction tube and Discharge tube are similar in sizes and both the tube entrances have the same diameter. So the both Distribution joints can fit into different tubes. Since the diameter of the tube ends for both Suction and Discharge tube are different, take care not to connect the distribution joint different. See the " # " marks on the above figures.

4.APR-RZP1350BAB

Use: For indoor unit (Capacity after distribution joint is greater than 232.000 BTU/h and no more than 460.700 BTU/h.)

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

Suction tubing • Discharge tubing

 

Liquid tubing

 

 

 

H

F

G

E

F

2–11/64

D

 

 

C

 

C

 

A

 

B

F E D C C A B

B

B

B

3–35/64

Thermal insulation

1–49/64

 

I

 

 

 

 

H

G

 

 

 

 

 

 

 

G

F

 

5–1/8

 

 

 

G G F E

 

E

 

 

 

 

 

E F G

G

 

I H

 

 

H I

 

B A C

C D E F

13–25/64

1–31/32

 

 

4–9/64

4–13/32

 

 

Thermal insulation Unit: in.

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1-14. Optional Solenoid Valve Kit

Precautions on Installation of Solenoid Valve Kit

(1)Clean base metals thoroughly.

(2)Use proper ventilation to carry fumes away from the work area.

(3)Use a high quality silver based solder of at least 15 % silver.

(4)Heat the base materials broadly and uniformly.

(5)Take precautions not to overheat the device which could damage sensitive internal components.

(6)Insure compliance with all local codes!

 

ATK-RZP56BAWB

 

 

Part

Types and specifications of

Number

tubing connections

1Gas tube: ID1/2"

2Liquid tube : ID1/4"

3Suspension hook

4Liquid tube : ID3/8"

5Suction tube: ID5/8"

6Discharge tube: ID1/2"

7Service panel

8Base of control box

9Terminal for power line

10Terminal for communication line

11Earth (M5 with washer)

12Cover of control box

13Relay kit

14Cover of relay kit

 

5-25/32

21/32-1

1

 

 

 

 

 

3-21/32 1-21/32

 

4-7/32 3-21/32

 

7

2

9-13/32

5-55/64

53/64 2-63/64

Specifications

 

ATK-RZP56BAWB

 

 

Compatibility

7.500 Total capacity of indoor units (BTU/h) < 19.000

Power source

Single-phase 200V 50/60Hz (supplied by indoor unit)

Power input

20 W

Net weight

151.7 oz.

Accessories

Washer x 2

 

Insulating tape

 

 

3

6

63/64

 

 

63/64

 

 

 

 

 

15/16-3

29/64-6 15/32-8

2-31/64 15/16-3

 

 

2-31/64

 

 

4

 

 

 

 

 

5

 

 

 

12

4-21/64 4-21/64 5-55/64

9

43/64 1-7/64 7/16 5-55/64 9-29/64

11

8

 

 

5-3/64

 

 

4-1/4

2-3/64

 

3-25/32

 

4-49/64

5-9/32

 

 

Unit: in.

14 13 10

18

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ATK-RZP160BAWB

 

 

Part

Types and specifications of

Number

tubing connections

1Gas tube: ID5/8"

2Liquid tube : ID3/8"

3Suspension hook

4Liquid tube : ID3/8"

5Suction tube: ID5/8"

6Discharge tube: ID1/2"

7Service panel

8Base of control box

9Terminal for power line

10Terminal for communication line

11Earth (M5 with washer)

12Cover of control box

13Relay kit

14Cover of relay kit

Specifications

 

ATK-RZP160BAWB

 

 

Compatibility

19.000 Total capacity of indoor units (BTU/h) < 54.600

Power source

Single-phase 200V 50/60Hz (supplied by indoor unit)

Power input

25 W

Net weight

165.8 oz.

Accessories

Washer x 2

 

Insulating tape

 

 

5-25/32

 

21/32-1

1

3

6

63/64

 

 

 

 

 

 

 

 

 

3-21/32 1-21/32

4-7/32 3-21/32

 

 

 

 

31/64-2

6-29/64

15/32-8

 

 

 

 

5

15/163-

 

 

 

 

 

 

4

 

 

 

 

7

 

 

 

 

 

 

 

 

9-13/32

 

 

2

12

 

 

 

 

 

 

 

 

5-55/64

4-21/64 4-21/64

5-55/64

 

 

 

 

 

 

 

9

8

 

 

 

 

 

 

63/64-2

 

11

 

 

43/64 1-7/64

7/16

5-55/64

9-29/64

 

 

 

 

 

 

 

 

 

 

53/64

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-3/64

 

 

 

 

 

 

 

 

 

4-1/4

2-3/64

 

 

 

 

 

 

 

 

3-25/32

 

 

 

 

 

 

 

 

4-49/64

5-9/32

 

 

 

 

14 13 10

19

63/64 2-31/64 3-15/16

Unit: in.

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Installation of Solenoid Valve Kit

1.Install the relay kit into the indoor unit.

Refer to the Installation Manual for the solenoid valve kit.

2.Connect the solenoid valve kit and the relay kit in the field.

Gas tube Liquid tube

Connect with conduit for power supply

Relay kit

Front

 

Cover of control box

Suspension hook

Top surface

Discharge tube

Liquid tube Suction tube

NOTE

Notes on Installation

Be sure to secure the valve body by using its structure with the suspension bolt, etc.

Install the valve body within a distance of 98 ft. from the indoor unit.

Some refrigerant noise will be produced. Therefore in hospitals, libraries, hotel guest rooms, and other quiet locations, it is recommended that the solenoid valve kit be installed on the ceiling reverse side of a hallway or another location separated from the room.

When installing the valve body, install with the top surface facing up. Secure 7-7/8" or more of space to the front so that the front service panel can be removed.

If the supplied suspension hook will not be used, and other fastening devices will be attached in the field, use the 4 screw holes on the top surface. DO NOT use any long screws other than the supplied screws. Use of other screws may puncture the internal tubing, resulting in refrigerant leakage.

Do not block the air holes.

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

Nut (field supplied) (3/8" or M10)

Washer

M4 screws

 

(12 pcs.)

Suspension hook

 

Front

Service space

7-7/8" or more

20

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Required additional refrigerant charge (oz)

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

Additional refrigerant charging

Based on the values in Tables 1-10, 11, 12, 15 and 16-2 use the liquid tubing size and length, and calculate the amount of additional refrigerant charge using the formula below.

= Necessary Amount of Refrigerant Charge Per Unit + 3.93 × (a) + 2.78 × (b) + 1.99 × (c) + 1.38 × (d) + 0.602 × (e) + 0.279 × (f)

(a) : Liquid tubing

Total length of ø7/8" (ft.)

(d) : Liquid tubing

Total length of ø1/2" (ft.)

(b) : Liquid tubing

Total length of ø3/4" (ft.)

(e) : Liquid tubing

Total length of ø3/8" (ft.)

(c) : Liquid tubing

Total length of ø5/8" (ft.)

(f) : Liquid tubing

Total length of ø1/4" (ft.)

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. However if only one outdoor unit is installed, a balance tube is not used. Therefore, leave the valves fully closed.)

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.

1.R410A additional charging absolutely must Balance tube

be done through liquid charging.

CAUTION

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.

Example:

Outdoor unit

09053 09053 model model

Use a flathead screwdriver and open by turning the part with the screw groove to the right, from " " to " "

Liquid tube

Use a hex wrench (width 5/32 inch) and turn to the left to open.

Discharge tube

Use a flathead screwdriver and open by turning the part with the screw groove to the right, from " " to " "

Suction tube

Use a flathead screwdriver and open by turning the part with the screw groove to the right, from " " to " "

B

 

 

A

 

 

 

 

 

 

 

LC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LA

 

 

 

 

2

 

 

 

3

 

 

 

 

4

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48 model 48 model

 

48 model

36 model

● Example of each tubing length

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Main tubing

 

 

 

 

 

 

 

 

 

 

Distribution joint tubing

 

 

 

LA = 131 ft.

 

 

 

 

 

 

 

 

 

 

Outdoor side

 

 

 

 

 

 

 

 

 

Indoor side

LB = 16 ft.

 

 

 

 

 

 

 

 

 

 

 

 

A = 7 ft.

 

 

 

 

 

 

 

 

 

1 = 98 ft.

LC = 16 ft.

 

 

 

 

 

 

 

 

 

 

 

 

B = 7 ft.

 

 

 

 

 

 

 

 

 

2 = 16 ft.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 = 16 ft.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 = 65 ft.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

 

 

 

 

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Obtain liquid tubing size from Tables 1-10, 11, 12 and 15.

Main tubing

LA = ø5/8 (ft.) (Total capacity of indoor unit is 179,400 BTU/h) LB = ø1/2 (ft.) (Total capacity of indoor unit is 131,600 BTU/h) LC = ø3/8 (ft.) (Total capacity of indoor unit is 83,800 BTU/h)

The longest tubing length in this example (LA = 131 ft.)

Distribution joint tubing

 

 

 

Outdoor side

A: ø3/8 (ft.)

B: ø3/8 (ft.)

(from outdoor unit connection tubing)

Indoor side

1: ø3/8 (ft.)

2: ø3/8 (ft.)

3: ø3/8 (ft.)

4: ø3/8 (ft.) (from indoor unit connection tubing)

Obtain charge amount for each tubing size

Note that the charge amounts per 1 meter are different for each liquid tubing size.

ø5/8 (ft.) → LA

: 131 ft. × 1.99 oz/ft.

=

261 oz

ø1/2 (ft.) → LB

: 16 ft. × 1.38 oz/ft.

=

22 oz

ø3/8 (ft.) → LC + A – B + 1 – 4

: 225 ft. × 0.602 oz/ft.

=

135 oz

Total 418 oz

Additional refrigerant charge amount is 418 oz.

Remark:

When operating only one model CHDZ (R) 14053 or jointing with one more model, be sure to include the values in Table 1-16-2 Necessary Amount of Refrigerant Charge Per Unit.

Be sure to check the limit density for

CAUTION

the room in which the indoor unit is

installed.

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 161 ft.2 × ceiling height 8.8 ft. = room volume 1417 ft.3), the graph at right shows that the minimum room volume should be 2455 ft.3

(floor area 279 ft.2) for refrigerant of 418 oz.

<Determination by calculation>

Overall refrigerant charge amount for the air conditioner: oz

(Minimum room volume for indoor unit: ft.3)

418(oz)

== 0.29 (oz/ft.3) < 0.3 (oz/ft.3)

1417 (ft.3)

Therefore, openings such as louvers are not required for this

room.

Min. indoor volume

ft.3

 

 

 

 

 

 

 

 

 

 

 

ft.2

 

4000

 

 

 

 

 

 

 

 

 

 

 

 

454

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3500

 

Range below

 

 

 

 

 

 

 

398

 

 

 

 

 

 

 

 

 

 

3000

 

the density limit of

 

 

 

 

 

341

area

 

0.3 oz/ft.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2500

 

(countermeasures

 

 

 

 

 

284

 

 

 

 

 

 

floor

 

not needed)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2000

 

 

 

 

 

 

 

 

 

 

 

 

227

indoor

 

 

 

 

 

 

 

 

 

 

 

 

1500

 

 

 

 

 

 

 

 

 

 

 

 

170

 

 

 

 

 

Range above

 

 

 

 

 

 

 

 

 

Min.

1000

 

 

 

 

 

the density limit of

 

114

 

 

 

 

 

 

500

 

 

 

 

 

0.3 oz/ft.3

 

 

 

57

 

 

 

 

 

 

(countermeasures

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

needed)

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

200

400

600

800

1000

1200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

oz

 

Total amount of refrigerant

(when the ceiling is 8.8 ft. high)

22

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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 furniture.

locations where high-frequency emissions are generated.

DO:

select an appropriate position from which every corner 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 difference above or below the outdoor unit and within a total tubing length (L) from the outdoor unit as detailed in Table 1-9.

allow room for mounting the remote controller about 3 ft. off the floor, in an area that is not in direct sunlight nor in the flow of cool air from the indoor unit.

NOTE

Air delivery will be degraded if the distance from the floor to the ceiling is greater than 10 ft.

23

Ceiling-MountedType

Ceiling

Wall

Min. 10 in.

Min. 10 in.

Front view

NOTE

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

Air discharge

Min. 2 ft.

 

 

 

Air intake

 

 

 

 

 

 

 

 

 

 

 

 

 

Side view

Max. 10 in.

 

Obstacle

Fig. 2-1

Concealed Duct (High-Static Pressure)Type

4-Way Air Discharge Semi-Concealed Type

3 ft.

3 ft.

3 ft.

3 ft.

3 ft.

 

Fig. 2-2

1-Way Air Discharge Semi-Concealed Type

Ceiling

Min. 3 ft.

Min. 2 in.

Wall

Obstacle

Air

discharge Air

intake Wall

Min. 2 in.

Side view

Fig. 2-3

Wall-MountedType

Min.

Min.6 in.

Min.

6 in.

 

6 in.

Front View

Fig. 2-4

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2-2. Outdoor Unit

AVOID:

heat sources, exhaust fans, etc.

damp, humid or uneven locations

indoors (no-ventilation location)

DO:

choose a place as cool as possible.

choose a place that is well ventilated.

allow enough room around the unit for air intake/ exhaust and possible maintenance.

Installation Space

Install the outdoor unit where there is enough space for ventilation. Otherwise the unit may not operate properly. Fig. 2-6 shows the minimum space requirement around the outdoor units when 3 sides are open and only 1 side is shuttered, with open space above the unit. The mounting base should be concrete or a similar material that allows for adequate drainage. Make provisions for anchor bolts, platform height, and other site-specific installation requirements.

Leave space open above the

CAUTION unit.

Construct louvers or other openings in the wall, if necessary, to ensure adequate ventilation.

NOTE

Do not do any wiring or tubing within 1 ft. of the front panel, because this space is needed as a servicing space for the compressor.

Ensure a base height of 4 in. or more to ensure that drainage water does not accumulate and freeze around the bottom of the unit.

If installing a drain pan, install the drain pan prior to installing the outdoor unit.

*Make sure there is at least 6 in. between the outdoor unit and the ground.

Also, the direction of the tubing and electrical wiring should be from the front of the outdoor unit.

Exhaust fan

Hot air

Heat Out- source door

unit

Fig. 2-5

Example of installation of 2 units (When wall height is below 6 ft.)

* More than 4 in.

* More than 4 in.

More than

 

2 in.

More than

 

1.7 ft.

* More than 4 in.

*However, be sure to ensure a space of 1 ft. or more at either the right side or the rear of the unit.

Fig. 2-6

74-1/64 (Ceiling panel dimensions)

3-15/16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35-3/64 (Ceiling panel dimensions)

35-3/64 (Ceiling panel dimensions)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35-3/64 (Ceiling panel dimensions)

 

36-7/32 (Installation hole pitch)

37-13/32 (Maximum dimensions)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31-7/64 (Installation hole pitch)

 

31-7/64 (Installation hole pitch)

 

 

 

 

 

 

 

 

 

 

 

7-7/8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

70-5/64 (Installation hole pitch)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Top view

 

 

 

 

 

Unit: in.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 2-7

24

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2-3. Precautions When Installing in Heavy Snow

Areas

a)The platform should be higher than the maximum snow depth. (Fig. 2-8)

b)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 the outdoor unit.

c)The platform foundation must be solid and the unit must be secured with anchor bolts.

d)When installing on a roof subject to strong wind, countermeasures must be taken to prevent the unit from being overturned.

25

AVOID

Without snowproof ducting

(Without platform)

Fig. 2-8

Fig. 2-9

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2-4. Dimensions of Wind Ducting

Reference diagram for air-discharge chamber (field supply)

Ceiling panel

33-3/16 35-3/64 (Ceiling panel dimensions) 35-15/64 (Maximum bracket dimensions)

unit: in.

Ceiling panel

33-3/16

Air direction: Front direction

 

 

Air direction: Right direction

35-3/64

 

 

 

35-3/64

 

 

35-3/64

 

(Ceiling panel dimensions)

 

 

 

 

35-15/64

2-11/64

(Ceiling panel dimensions)

15/16

15/16

(Ceiling panel dimensions)

2-11/64

(Maximum bracket dimensions)

 

 

 

 

 

 

 

(32-5/64)

 

 

 

 

(32-5/64)

97-29/32

97-29/32

65-53/64

65-53/64

Front view

Right side view

Front view

Right side view

 

Note: Can be installed so that the air direction is to the front, right, left or rear direction.

 

2-unit installation

74-7/32 (2-unit installation: maximum dimensions)

 

 

5-25/32

 

33-3/16

33-3/16

 

31-7/64

31-7/64

Top view

 

(Installation hole pitch)

 

36-7/32 (Installation hole pitch)

7-7/8

unit: in.

 

35-3/64

 

2-11/64

(Ceiling panel dimensions)

15/16

 

(32-5/64)

 

 

97-29/32

65-53/64

Front view

Right side view

26

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2-5. Dimensions of Snow Ducting

Reference diagram for snow-proof ducting (field supply)

 

 

 

Air direction:

 

 

 

Front direction

-55/64

-17/32

-17/32

Ceiling panel

53

31

31

 

 

 

31-17/32 (Air intake duct)

 

 

 

 

33-3/16 (Air outlet duct)

 

 

9-13/32

35-3/64

9-13/32

9-13/32

35-3/64

9-13/32

 

(Ceiling panel dimensions)

 

(Ceiling panel dimensions)

 

53-55/64

 

 

32-7/8

15/16

 

 

 

 

 

1 pc.

(32-5/64)

 

31-17/32

 

-13/32

 

 

 

 

 

9

35-3/64

53-55/64

 

31-17/32

 

duct)

duct)

13/32-

 

53-55/64

 

 

 

 

 

 

9-13/32

35-3/64

9-13/32

intake

outlet

9

 

 

 

 

 

(Ceiling panel dimensions)

 

 

 

15/16

32-7/8

 

(Air

(Air

 

 

 

 

 

 

 

31-17/32

33-3/16

 

Air direction: Right direction

Ceiling panel

unit: in.

45-5/16

-7/64

 

36

97-29/32

53/64

7/64-

5/16-45

 

4 pc.

65-

 

 

 

 

 

 

 

36

 

 

Front view

 

Right side view

Front view

Right side view

Note: Can be installed so that the air direction is to the front, right, left or rear direction.

74-1/64 (Ceiling panel dimensions)

2-unit installation

35-3/64

35-3/64

 

 

3-15/16

35-3/64

Ceiling panel dimensions

-367/32 13/32-37

Top (Before installation of snowfall protection duct)

 

 

31-7/64

31-7/64

Installation hole pitch

7-7/8

 

Installation hole pitch

 

 

70-5/64

Installation hole pitch

2

3

2

unit: in.

 

31-17/32

 

 

 

 

31-17/32

 

 

 

35-3/64 (Ceiling panel dimensions)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ceiling panel

9-29/64

9-29/64

 

2

1

3

3

2

1

 

2-11/64

7/8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

2

 

 

 

 

2

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

45-5/16

36-7/64

 

 

 

 

36-7/64

45-5/16

97-29/32

65-53/64

36-7/64

45-5/16

 

 

 

92-53/64

 

 

 

 

 

 

 

 

 

 

Front view

 

 

 

 

Right side view

 

27

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3.HOW TO INSTALL THE INDOOR UNIT

4-Way Air Discharge Semi-Concealed Type (X Type) 3-1. Preparation for Suspending

This unit uses a drain pump. Use a carpenter’s level to check that the

Xunit is level.

3-2. Suspending the Indoor Unit

(1)Fix the suspension bolts securely in the ceiling using the method shown in the diagrams (Figs. 3-1 and 3-2), by attaching them to the ceiling support structure, or by any other method that ensures that the unit will be securely and safely suspended.

(2)Follow Fig. 3-2 and Table 3-1 to make the holes in the ceiling.

Table 3-1

Unit: in. (mm)

Note: For DC Fan Tap Change Procedure for 4-Way Cassette, see page 34.

Hole-in-anchor

 

 

Hole-in-plug

Concrete

Insert

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

Fig. 3-1

Length

A

B

C

D

Type

12, 18, 24, 36

31-1/32

28-15/32

34-27/32

34-27/32

(788)

(723)

(885)

(885)

 

 

 

 

 

 

(3)Determine the pitch of the suspension bolts using the supplied full-scale installation diagram. The diagram and table (Fig. 3-3 and Table 3-2) show the relationship between the positions of the suspension fitting, unit, and panel.

Table 3-2

 

 

 

 

 

Unit: in. (mm)

 

 

 

 

 

 

 

 

 

Length

A

B

C

 

D

 

E

 

Type

 

 

 

12, 18, 24

4-29/64

6-13/16

10-5/64

 

8-17/64

 

3-15/32

 

(113)

(173)

(256)

 

(210)

 

(88)

 

 

 

 

 

36

4-29/64

6-13/16

12-9/16

 

8-17/64

 

3-15/32

 

(113)

(173)

(319)

 

(210)

 

(88)

 

 

 

 

 

 

 

Drain outlet(other side)

 

Refregerant tubing joint(liquid side)

 

 

(VP25)

 

B (suspension bolt pitch)

(ceiling opening dimension)

 

D

A (suspension bolt pitch)

C (ceiling opening dimension)

Fig. 3-2

Refregerant tubing joint(gas side)

Suspension lug

 

 

 

 

C

D E

A B

1-3/8 (35)

Fig. 3-3

Power supply outlet

 

Inter-unit control wiring

Unit: in. (mm)

3-3. Placing the Unit Inside the Ceiling

(1)When placing the unit inside the ceiling, determine the pitch of the suspension bolts using the supplied full-scale installation diagram. (Fig. 3-4)

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

Over 19/32 (15)

Supplied bolt

– 43/64

17)

15/32

(12 –

Full-scale installation diagram

Unit: in. (mm)

(printed on top of container box)

 

Fig. 3-4

28

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(2)The length of suspension bolts must be appropriate for a distance between the bottom of the bolt and the bottom of the unit of more than 19/32 in. as shown in Fig. 3-5.

(3)Thread the 3 hexagonal nuts and 2 washers (field supply) onto each of the 4 suspension bolts as shown in Fig. 3-5. 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.

(4)Adjust so that the distance between the unit and the ceiling bottom is 15/32 to 43/64 in. Tighten the nuts on the upper side and lower side of the suspension lug.

(5)Remove the protective polyethylene used to protect the fan parts during transport.

3-4. Installing the Drain Piping

(1)Prepare a standard hard PVC pipe (O.D. 1-1/4 in.) for the drain and use the supplied drain hose and hose band to prevent water leaks.

The PVC pipe must be purchased separately. The unit’s transparent drain port allows you to check drainage. (Fig. 3-6)

CAUTION

Insert the drain pipe until it contacts the socket, as shown in Fig. 3-6, then secure it tightly with the hose band.

Do not use adhesive when connecting the supplied hose.

Reasons: 1. It may cause water to leak from the connection. Since the connection is slippery just after the adhesive has been applied, the pipe easily slips off.

2.The pipe cannot be removed when maintenance is needed.

Do not bend the supplied drain hose 90° or more. The hose may slip off.

Align the hose bands with the end of the hose. Tighten the hose band firmly. Please make sure that the bead is not covered by the hose band. (Fig. 3-6)

Tighten the hose clamps so

CAUTION

their locking nuts face upward. (Fig. 3-6)

(2)After checking the drainage, wrap the supplied packing and drain pipe insulator around the pipe. (Fig. 3-7)

NOTE

Make sure the drain pipe has a downward gradient (1/100 or more) and that there are no water traps.

29

 

Suspension bolt

Nuts and washers

Suspension lug

(use for upper and lower)

 

X

Double nut

Notch

 

15/32 – 43/64 (12 – 17)

Unit: in. (mm)

Fig. 3-5

 

 

 

 

 

 

 

Hard PVC

 

 

Hose band

 

socket

Hard PVC pipe

 

 

VP-25

 

Supplied

VP-25

Connection pipe

drain hose

(Field supply)

(Field supply)

(drain port)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PVC adhesive

Align the hose

Packing

(supplied)

band with the end

 

of the pipe

 

Bead

Fig. 3-6

Drain insulator (supplied)

Fig. 3-7

Air bleeder prohibited

Fig. 3-8

CAUTION

Do not install an air bleeder as this may cause water to spray from the drain pipe outlet. (Fig. 3-8)

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CAUTION

In cases where it is necessary to raise the height of the drain piping, the drain piping can be raised

Xto a maximum height of 33-15/32" above the bottom surface of the ceiling. Under no conditions attempt to raise it higher than 33-15/32" above the bottom surface of the ceiling. Doing so will result in water leakage. (Fig. 3-9)

Do not install the pipe with an upward gradient from the connection port. This will cause the drain water to flow backward and leak when the unit is not operating. (Fig. 3-10)

Do not apply force to the piping on the unit side when connecting the drain pipe. The pipe should not be allowed to hang unsupported from its connection to the unit. Fasten the pipe to a wall, frame, or other support as close to the unit as possible. (Fig. 3-11)

Provide insulation for any pipes that are run indoors.

3-5. Checking the Drainage

After wiring and drain piping are completed, use the following procedure to check that the water will drain smoothly. For this, prepare a bucket and wiping cloth to catch and wipe up spilled water.

(1)Connect power to the power terminal board (R, S terminals) inside the electrical component box.

(2)Slowly pour approx. 0.3 gal of water into the drain pan to check drainage. (Fig. 3-12)

(3)Short the check pin (CHK) on the indoor control board and operate the drain pump. Check the water flow through the transparent drain pipe and see if there is any leakage.

(4)When the check of drainage is complete, open the check pin (CHK) and remount the tube cover.

CAUTION

Be careful since the fan will

start when you short the pin

 

 

 

on the indoor control board.

30

W-3WAY_ECO-i_US.indd 30

11-3/16 in. or less (as short as possible)

33-15/32 in. or less

0– 45°

*Length of supplied drain hose = 9-27/32 in.

Fig. 3-9

Upward gradient prohibited

Fig. 3-10

Support pieces

Fig. 3-11

Drainage check

Over 3-15/16 in.

Drain pan outlet Water (Approx. 0.3 gal)

Plastic container for water intake

Fig. 3-12

2008/02/07 10:55:47

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