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

INSTALLATION INSTRUCTIONS

– W-3WAY ECO-i System Air Conditioner –

for Refrigerant R410A

This air conditioner uses the new refrigerant R410A.

NOTE

R410A Models

Indoor Units

Class 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 DHX3652 DHX4852

T Ceiling-Mounted Type THX1252 THX1852 THX2452

K Wall-Mounted Type KHX0752 KHX0952 KHX1252 KHX1852 KHX2452

Concealed Duct

High-Static Pressure Type

Outdoor Units

Class 90 140

CECO-i W-3WAY

* 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

External diameter of service port R410A: 5/16"

CHDZ09053 CHDZ14053 CHDZR09053 CHDZR14053

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

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Bensenville, IL 60106, U.S.A. L4K 5C7, Canada

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

CAUTION

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

WARNING

When Wiring

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.

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 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

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

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 (lbs)

Min. volume of the indoor unit installed room (ft.

Density limit (oz/ft.

)

The density limit of refrigerant which is used in multi air conditioners is 0.3 oz/ft.

(ISO 5149).

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)

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.

e.g., charged amount (529 oz)

(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

Ver y small room

Small room

Mechanical ventilation device – Gas leak detector

Medium room

Large room

Indoor unit

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.

4000

3500

3000

2500

2000

1500

Min. indoor volume

1000

Range below the density limit of

0.3 oz/ft. (countermeasures not needed)

500

Range above the density limit of

0.3 oz/ft. (countermeasures needed)

400200 600 800 1000 1200

Total amount of refrigerant

454

398

341

284

227

170

114

ft.

Min. indoor floor area

(when the ceiling is 8.8 ft. high)

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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

Copper tube

Wall thickness 1/32 (0.8) 1/32 (0.8) 1/32 (0.8) 5/128 (1.0)

Copper tube Wall thickness 5/128 (1.0) 5/128 (1.0) 5/128 (1.0) 3/64 (1.1)

Material O

Outer diameter 1/4 (6.35) 3/8 (9.52) 1/2 (12.7) 5/8 (15.88) 3/4 (19.05)

Material 1/ 2 H, H

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)

prevent dirt, moisture, or other foreign substances from entering. These substances can result in system malfunction.

Unit: in. (mm)

over 5/128 (1.0)

over 3/64 (1.15)

over

Unit: in. (mm)

3/64 (1.20)

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

ant 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 refriger-

ant 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.

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.

New tool?

R407C tools

Manifold gauge

Vacuum pump

Outlet Inlet

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

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3-2. Use R410A exclusive cylinder only.

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.

Valve

Single-outlet valve

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

Liquid

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)

R410A

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CONTENTS

Page 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

Optional Distribution Joint Kits

1-14. Optional Solenoid Valve Kit

Example of Tubing Size Selection and

1-15.

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

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

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.

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

Table 1-1 Outdoor Unit

Part name

Connection tubing

Outer diameter ø1-1/8"

Outer diameter ø7/8"

Figure

Instruction manual paper

Inner diameter ø1"

Inner diameter ø3/4"

Q’ty

09053 Model

(10 hp)

14053 Model

(16 hp)

(hp = horse power)

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

Part Name Figure

Full-scale installation diagram

Drain hose

Hose band

Drain insulator

Flare insulator

Insulating tape

Packing

Wiring cover

Screw

Washer

Screw

White (heat-resisting)

Q’ty

Printed on container box

For securing drain hose

For drain joint

For liquid tube

For gas tube

For gas tube joint

For drain joint

For covering electrical wiring

For full-scale installation diagram

For suspending indoor unit from ceiling

For fixing the wiring cover

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

Part Name Figure

Full-scale installation diagram Printed on container box

Drain hose

Hose band

Drain insulator

Flare insulator

Insulating tape

Washer

Screw

Bushing

White (heat-resisting)

Q’ty

For securing drain hose

For drain joint

For liquid tube

For gas tube

For gas tube joint

For drain joint

1Packing

For suspending indoor unit from ceiling

For full-scale installation diagram

For electrical junction box

Remarks

Table 1-4 (Concealed Duct)

Part Name Figure

Drain hose

Hose band 1

Packing 1

Drain insulator 1

Flare insulator 1

Insulating tape 2

Flare insulator 1

Washer 8

Sealing putty 1

Vinyl clamp 8

●

Use M10 or 3/8" for suspending bolts.

●

Field supply for suspending bolts and nuts.

White (heat-resisting)

Q’ty

For securing drain hose

For drain joint

For liquid tube

For gas and liquid tubes flare nuts

For gas tube

For suspending indoor unit from ceiling

For sealing recessed portion of power supply

For flare and drain insulators

Remarks

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

Part Name Figure

Flare insulator

Q’ty

8 For suspending indoor unit from ceiling Washer

8 For suspending indoor unit from ceiling Nut

1 For gas tube

1 For liquid tube

1 For drain pipe connection Drain socket

Remarks

Table 1-6 (Ceiling-Mounted)

Part Name Figure

Full-scale installation diagram 1 Printed on container box

Washer 4 For temporarily suspending indoor unit from ceiling

T1/8"

T3/16"

Insulating tape 2 For gas and liquid tubes flare nuts

White (heat-resisting)

Vinyl clamp 8 For flare and drain insulators

Drain hose 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

L5-1/2"

Q’ty

Remarks

For gas and liquid tube joints Flare insulator

inlet

Table 1-7 (Wall-Mounted)

Part Name Figure

5/32" s 1"

Q’ty

10 For fixing the rear panel Tapping screw

1 For improved tubing appearance Plastic cover

1 For insulating flare nut (2452 type only) Insulator

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

Parts Name Figure RemarksQ'ty

T3 T5

set

Washer

Flare insulation

Insulation tie

Vinyl tie

Drain hose insulation

●

Use M10 or 3/8" for suspending bolts.

●

Field supply for suspending bolts and nuts.

T10

For temporarily suspending indoor unit from ceiling

For gas / liquid tube connection

For gas / liquid tube / flare nut connection

For flare / drain insulating connection

For drain tube connection

Parts Name Figure RemarksQ'ty

Full-scale installation diagram

Washer head screw

Drain hose

Hose band

Remarks

L140

Printed on

container box

For full-scale installation

diagram

For unit & PVC

tube connection

For drain hose

connection

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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

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

distribution joint.

sizes on the indoor units.

Balance tubing (ø9.52)

LB LC

T-joint tubing (header joint system)

LE L3

Explanation of symbols

Distribution joint (APR: purchased separately)

Max. 1.3 ft.

For extension

5 6

Ball valve (field supply)

T-joint (field supply)

Solidly welded shut (pinch weld)

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

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

unit connections and tubing branches.

Solenoid valve kit

R410A distribution joint APR-CHRZP900BAB (for outdoor unit) APR-RZP224BAB (for indoor unit) APR-RZP680BAB (for indoor unit) APR-RZP1350BAB (for indoor unit)

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

Item Mark Contents Length (ft.)

Actual length 492

Equivalent length 574

Allowable tubing length

Allowable elevation difference

L1 Max. tubing length

$L (L2 – L4)

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

LM Max. length of main tubing (at max. diameter) 262

,2...

L1+

...

1 B

+LF+LG+LH each distribution tube (only liquid tubing)

Max. length of each distribution tube 98

Total max. tubing length including length of

Distance between outdoor units

When outdoor unit is installed higher than indoor unit 164 When outdoor unit is installed lower than indoor unit 131 Max. difference between indoor units

H3 Max. difference between outdoor units

Allowable length of joint tubing

L = Length, H = Height

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

NOTE

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.)

131

984

49 13

6.6

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1-6. Tubing Size

Table 1-10 Main Tubing Size (LA)

Unit: in. (mm)

16 10

ø1-3/8"

(ø34.92)

ø1-1/8"

(ø28.58)

(ø19.05)

307.100

16 16

ø3/4"

BTU/h

Total system horsepower

Combined outdoor units

Suction tubing

Discharge tubing

Liquid tubing

95.500

ø7/8"

(ø22.22)

ø3/4"

(ø19.05)

ø3/8"

(ø9.52)

153.600

ø1-1/8"

(ø28.58)

(ø22.22)

ø1/2"

(ø12.70)

ø7/8"

191.000

10 10

ø5/8"

(ø15.88)

249.100

*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...)

Total capacity after distribution

Tubing size

Total capacity after distribution

Tubing size

Below BTU/h

Over BTU/h

Suction tubing

Discharge tubing

Liquid tubing

Below BTU/h

Over BTU/h

Suction tubing

Discharge tubing

Liquid tubing

24.200

(2.5 hp)

–

ø5/8"

(ø15.88)

ø1/2"

(ø12.70)

ø3/8"

(ø9.52)

258.000

(27 hp)

238.900

(25 hp)

ø1-3/8"

(ø34.93)

ø1-1/8"

(ø28.58)

ø3/4"

(ø19.05)

54.600

(6 hp)

24.200

(2.5 hp)

ø3/4"

(ø19.05)

ø5/8"

(ø15.88)

ø3/8"

(ø9.52)

334.400

(35 hp)

258.000

(27 hp)

ø1-3/8"

(ø34.93)

ø1-1/8"

(ø28.58)

ø3/4"

(ø19.05)

85.300

(9 hp)

54.600

(6 hp)

ø3/4"

(ø19.05)

ø5/8"

(ø15.88)

ø3/8"

(ø9.52)

–

334.400

(35 hp)

ø1-1/2"

(ø38.10)

ø1-1/8"

(ø28.58)

ø3/4"

(ø19.05)

102.400

(11 hp)

85.300

(9 hp)

ø7/8"

(ø22.22)

ø3/4"

(ø19.05)

ø3/8"

(ø9.52)

124.200

(13 hp)

102.400

(11 hp)

ø1-1/8"

(ø28.58)

ø3/4"

(ø19.05)

ø1/2"

(ø12.70)

143.300

(15 hp)

124.200

(13 hp)

ø1-1/8"

(ø28.58)

ø7/8"

(ø22.22)

ø1/2"

(ø12.70)

162.400

(17 hp)

143.300

(15 hp)

ø1-1/8"

(ø28.58)

ø7/8"

(ø22.22)

ø1/2"

(ø12.70)

*1: If the total capacity of the indoor units con-

nected 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)

Unit: in. (mm)

hp = horsepower

200.600

(21 hp)

162.400

(17 hp)

ø1-1/8"

(ø28.58)

ø7/8"

(ø22.22)

ø5/8"

(ø15.88)

238.900

(25 hp)

200.600

(21 hp)

ø1-1/8"

(ø28.58)

ø1-1/8"

(ø28.58)

ø5/8"

(ø15.88)

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

BTU/h

Suction tubing

95.500 153.600

ø7/8"(ø22.22)

ø1-1/8"(ø28.58)

Brazing connection

Discharge

tubing

Liquid tubing

Balance tubing

ø3/4"(ø19.05)

Brazing connection

ø3/8"(ø9.52)

Brazing connection

ø3/8"(ø9.52)

Flare connection

ø7/8"(ø22.22)

ø1/2"(ø12.7)

Unit: in. (mm)

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

Indoor unit type

Total system horsepower

Distribution joint – solenoid valve kit tubing

Solenoid valve kit – Indoor

Suction tubing

Discharge tubing

Liquid tubing

Gas tubing

unit tubing connection

Liquid tubing

0.8

912

1.3

ø1/2"

(ø12.70)

ø1/4"

(ø6.35)

18 24

2345

ø5/8"

(ø15.88)

ø1/2"

(ø12.70)

ø3/8"

(ø9.52)

ø5/8"

(ø15.88)

ø3/8"

(ø9.52)

in. (mm)

*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))

90o elbow

45o elbow

U-shape tube bent (R2–23/64–3–15/16 in.)

T r ap bend

1/2"

(12.7)

1 ft.

(0.30 m)

0.8 ft.

(0.23 m)

3 ft.

(0.90 m)

7.5 ft.

(2.30 m)

5/8"

(15.88)

1.1 ft.

(0.35 m)

0.9 ft.

(0.26 m)

3.4 ft.

(1.05 m)

9.2 ft.

(2.80 m)

3/4"

(19.05)

1.4 ft.

(0.42 m)

1 ft.

(0.32 m)

4.1 ft.

(1.26 m)

10.5 ft.

(3.20 m)

7/8"

(22.22)1"(25.4)

1.6 ft.

(0.48 m)

1.2 ft.

(0.36 m)

4.7 ft.

(1.44 m)

12.5 ft.

(3.80 m)

1.7 ft.

(0.52 m)

1.3 ft.

(0.39 m)

5.1 ft.

(1.56 m)

14.1 ft.

(4.30 m)

1-1/8"

(28.58)

1.9 ft.

(0.57 m)

1.4 ft.

(0.43 m)

5.6 ft.

(1.71 m)

15.4 ft.

(4.70 m)

1-1/4" (31.8)

2.3 ft.

(0.70m)

1.7 ft.

(0.53 m)

6.9 ft.

(2.10 m)

16.4 ft.

(5.00 m)

1-1/2" (38.1)

2.6 ft.

(0.79 m)

1.9 ft.

(0.59 m)

7.8 ft.

(2.37 m)

14.0 ft.

(5.80 m)

Y-branch distr ibution joint Equivalent length con version not needed.

Ball v alve f or ser vice Equivalent length con version not needed.

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

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)

ø7/8" (ø22.22) t5/128 (t1.0)

Tubing size (in. (mm))

over t5/128 (t1.0)

* 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.

ø1-5/8" (ø41.28) over t3/64 (t1.20)

1-8. Additional Refrigerant Charge

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 size

Amount of refrigerant charge (oz/ft.)

ø1/4"

(ø6.35)

ø3/8"

(ø9.52)

ø1/2"

(ø12.7)

ø5/8"

(ø15.88)

ø3/4"

(ø19.05)

ø7/8"

(ø22.22)

0.279 0.602 1.38 1.99 2.78 3.93

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.

Table 1-16-2 Necessary Amount of Refrigerant

Charge Per Unit

CHDZ09053 CHDZR09053

— 113 oz/unit

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CHDZ14053 CHDZR14053

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

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

Max. connectable indoor units 40

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

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 Outdoor unit Indoor unit

●

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 notice-

4-tube layout 3-tube layout 2-tube layout

Suction tube

Discharge tube

Liquid tube

Balance tube

Suction tube

Discharge tube

Liquid tube

Solenoid valve kit

Gas tube

Liquid

tube

able. It is recommended that the solenoid valve kit be installed inside the corridor ceiling, at a location outside the room.

Room

Indoor unit

Room

Indoor unit

Room

Indoor unit

Room

Indoor unit

YES

Hallway

Solenoid valve kit

Hallway

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

56 7.500

●

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

Total capacity < 54.600

Total capacity < 19.000

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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.

)

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.)

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.

10000

9500 9000

Range below

8500

the density limit of

8000 7500 7000 6500 6000 5500 5000 4500 4000 3500

Min. indoor volume

3000 2500 2000 1500 1000

500

0.3 oz/ft. (countermeasures not needed)

Range above the density limit of

0.3 oz/ft. (countermeasures needed)

1000500 1500 2000 2500 3000

Total amount of refrigerant

Tube branching methods (horizontal use)

ft. 1136 1079 1022 966 909 852 795 738 682 625 568 511 454 398

Min. indoor floor area

341 284 227 170 114 57

(when the ceiling is 8.8 ft. high)

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 fur-

ther 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

Header joint system (Indoor)

Outdoor

Indoor

Horizontal line

L3 6.56 ft.

Types of vertical trap specifications

(When using ball valve)

Main tubing

Ball valve

(BV: purchased

separately)

Indoor unit (1)

(When not using ball valve)

Main tubing

Indoor unit is directed downward

Indoor unit (more than 2 units)

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

Branch tubing is directed upward.

More than 7–7/8"

Arrow view

Install at a positive angle

Indoor

Horizontal line

Horizontal

Indoor unit

15 to 30

Horizontal line

View as seen from arrow

Install at a positive angle (15 – 30°)

Solidly welded shut (X)

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

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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

Distribution Joint

11- 13/ 16 11- 13/ 16

D E

Insulation

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

Discharge Tube

D E F

Liquid Tube

G F

EDF

13-25/64

EFG

InsulationInsulation

Unit: in.

*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

Inch

Part B Part C Part D Part E Part F Part G Part H Part I

7/81-1/4

3/41-1/8 3/85/8 1/21

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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. below indicates outer diameter.)

Liquid tubing

9–1/4

I H

HIIH

2–23/32

2–11/64

Suction tubing

8–17/64

G H

5–45/64

2–11/64

3–5/8 15/32

1–37/64

Discharge tubing

7–21/64

5–23/64

H H

3–1/32 9/32

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

11- 13/ 16

EFD

D E

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.

FED

Insulation

Discharge Tube

11-13/16

E F

G H

Liquid Tube

GF E

F E

EFG

13-25/64

Insulation

Unit: in.

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. below indicates outer diameter.)

Suction tubing • Discharge tubing

H G

2–11/64

Thermal insulation

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3–35/64

F E D

C A

4–9/64 4–13/32

1–49/64

Liquid tubing

13–25/64

ECDAFFADCE

Thermal insulation

5–1/8

1–31/32

Unit: in.

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!

Part

Number

1 2 3 4 5 6 7 8

9 10 11 12 13 14

1-21/32

3-21/32

ATK-RZP56BAWB

Types and specifications of tubing connections

Gas tube: ID1/2" Liquid tube : ID1/4" Suspension hook Liquid tube : ID3/8" Suction tube: ID5/8" Discharge tube: ID1/2" Service panel Base of control box Terminal for power line Terminal for communication line Earth (M5 with washer) Cover of control box Relay kit Cover of relay kit

5-25/32

1-21/32

3-21/32

4-7/32

Specifications

ATK-RZP56BAWB

Compatibility Power source Power input Net weight

Accessories

7.500 Total capacity of indoor units (BTU/h) < 19.000 Single-phase 200V 50/60Hz (supplied by indoor unit) 20 W

151.7 oz.

Washer x 2 Insulating tape

63/64

2-31/64

3-15/16

6-29/64

8-15/32

63/64

2-31/64

3-15/16

9-13/32

53/64 2-63/64

5-55/64

4-21/64 4-21/64

5-3/64 4-1/4 3-25/32

5-55/64

9-29/64

7/16

43/64

1-7/64

5-55/64

2-3/64

5-9/32

4-49/64

Unit: in.

1314

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ATK-RZP160BAWB

Specifications

Part

Number

1 2 3 4 5 6 7 8

9 10 11 12 13 14

1-21/32

3-21/32

Types and specifications of tubing connections

Gas tube: ID5/8" Liquid tube : ID3/8" Suspension hook Liquid tube : ID3/8" Suction tube: ID5/8" Discharge tube: ID1/2" Service panel Base of control box Terminal for power line Terminal for communication line Earth (M5 with washer) Cover of control box Relay kit Cover of relay kit

5-25/32

4-7/32

3-21/32

1-21/32

ATK-RZP160BAWB

Compatibility Power source Power input Net weight

Accessories

19.000 Total capacity of indoor units (BTU/h) < 54.600 Single-phase 200V 50/60Hz (supplied by indoor unit) 25 W

165.8 oz.

Washer x 2 Insulating tape

63/64

2-31/64

3-15/16

6-29/64

8-15/32

63/64

2-31/64

3-15/16

9-13/32

53/64 2-63/64

5-55/64 5-55/64

4-21/64 4-21/64

5-3/64

4-1/4

3-25/32

9-29/64

7/16

43/64

1-7/64

5-55/64

2-3/64

5-9/32

4-49/64

Unit: in.

1314

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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

Suspension hook

Top surface

Discharge tube

Relay kit

Front

Liquid tube

Suction tube

Cover of control box

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

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7-7/8" or more

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.

Required additional refrigerant charge (oz)

(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.)

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.

●

CAUTION

Example:

Outdoor unit

09053 model

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)

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.

Balance tube

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

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.

09053 model

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

Example of each tubing length

●

1 2 3 4

48 model 48 model 48 model 36 model

Main tubing Distribution joint tubing

LA = 131 ft. Outdoor side Indoor side LB = 16 ft. LC = 16 ft.

A = 7 ft. 1 = 98 ft. B = 7 ft. 2 = 16 ft.

3 = 16 ft. 4 = 65 ft.

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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) The longest tubing length in this example

LB = ø1/2 (ft.) (Total capacity of indoor unit is 131,600 BTU/h) (LA = 131 ft.)

LC = ø3/8 (ft.) (Total capacity of indoor unit is 83,800 BTU/h)

Distribution joint tubing

Outdoor side

Indoor side

Obtain charge amount for each tubing size

●

A: ø3/8 (ft.) B: ø3/8 (ft.) (from outdoor unit connection tubing)

1: ø3/8 (ft.) 2: ø3/8 (ft.) 3: ø3/8 (ft.) 4: ø3/8 (ft.) (from indoor unit connection tubing)

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.

CAUTION

Be sure to check the limit density for

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.

ing height 8.8 ft. = room volume 1417 ft.

), the graph at right

shows that the minimum room volume should be 2455 ft.

(floor area 279 ft.

) for refrigerant of 418 oz.

× ceil-

Overall refrigerant charge amount for the air conditioner: oz

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

418 (oz)

1417 (ft.

= 0.29 (oz/ft.

)

) < 0.3 (oz/ft.3)

Therefore, openings such as louvers are not required for this

room.

ft.

4000

3500

3000

2500

2000

1500

Min. indoor volume

1000

Range below the density limit of

0.3 oz/ft. (countermeasures not needed)

500

Range above the density limit of

0.3 oz/ft. (countermeasures needed)

400200 600 800 1000 1200

Total amount of refrigerant

ft.

454

398

341

284

227

170

114

Min. indoor floor area

(when the ceiling is 8.8 ft. high)

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2. SELECTING THE INSTALLATION SITE

2-1. Indoor Unit

Ceiling-Mounted T ype

Ceiling

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.

Wall

Min. 10 in.

Front view

Min. 10 in.

NOTE

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

Air discharge

Min. 2 ft.

Side vie w

Air intake

Max. 10 in.

Obstacle

Fig. 2-1

Concealed Duct (High-Static Pressure) Type 4-Way Air Discharge Semi-Concealed Type

3 ft.

Fig. 2-2

1-Way Air Discharge Semi-Concealed Type

Ceiling

Min. 2 in.

Air

discharge

Min. 3 ft.

Obstacle

Air intake

Min. 2 in.

Wall

Side view

Fig. 2-3

Wall-Mounted T ype

Min. 6 in.

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Min.6 in.

Front View

Fig. 2-4

Min. 6 in.

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 ven-

tilation. 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.

Exhaust fan

Hot air

Heat

Outdoor unit

source

Fig. 2-5

Example of installation of 2 units

(When wall height is below 6 ft.)

* More than 4 in.

More than 2 in.

* 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.

More than

1.7 ft.

Fig. 2-6

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.

74-1/64 (Ceiling panel dimensions)

35-3/64 (Ceiling panel dimensions) 35-3/64 (Ceiling panel dimensions)

31-7/64 (Installation hole pitch) 31-7/64 (Installation hole pitch)

70-5/64 (Installation hole pitch)

3-15/16

7-7/8

Top view

Fig. 2-7

36-7/32 (Installation hole pitch)

35-3/64 (Ceiling panel dimensions)

37-13/32 (Maximum dimensions)

Unit: in.

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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, coun-

termeasures must be taken to prevent the unit from

being overturned.

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)

unit: in.

Ceiling panel

33-3/16 35-3/64

(Ceiling panel dimensions)

35-15/64

(Maximum bracket dimensions)

33-3/16

35-3/64

Air direction: Front direction Air direction: Right direction

35-3/64

(Ceiling panel dimensions)

2-11/64 15/16

97-29/32

65-53/64 (32-5/64)

35-3/64

(Ceiling panel dimensions)

2-11/6415/16

97-29/32

65-53/64 (32-5/64)

Ceiling panel

35-15/64

(Ceiling panel dimensions)

(Maximum bracket dimensions)

Front view Front view Right side 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

(2-unit installation: maximum dimensions)

74-7/32

33-3/16

31-7/64

5-25/32

(Installation hole pitch)

7-7/8

33-3/16

31-7/64

Top view

36-7/32

(Installation hole pitch)

2-11/64 15/16

97-29/32

unit: in.

35-3/64

(Ceiling panel dimensions)

65-53/64 (32-5/64)

Front view Right side view

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2-5. Dimensions of Snow Ducting

Reference diagram for snow-proof ducting (field supply)

31-17/32

53-55/64

31-17/32

9-13/32

45-5/16

(Ceiling panel dimensions)

36-7/64

2-unit installation

Air direction: Front direction

Ceiling panel

31-17/32

31-17/32 (Air intake duct)

35-3/64

53-55/64

33-3/16 (Air outlet duct)

9-13/32

1 pc.

4 pc.

9-13/32

(32-5/64)

97-29/32

65-53/64

35-3/64

(Ceiling panel dimensions)

32-7/8 32-7/8

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)

35-3/64

3-15/16

Ceiling panel dimensions

9-13/32

15/16 15/16

36-7/64

9-13/32

45-5/16

Air direction: Right direction

Ceiling panel

35-3/64

53-55/64

31-17/32 53-55/64

35-3/64

(Ceiling panel dimensions)

9-13/32

9-13/32 9-13/32

unit: in.

33-3/16 (Air outlet duct)

31-17/32 (Air intake duct)

Front view Right side view

Installation hole pitch

31-17/32

45-5/16

36-7/64

Top (Before installation of snowfall protection duct)

35-3/64

36-7/32

37-13/32

31-7/64

7-7/8

223

31-7/64

70-5/64

Installation hole pitchInstallation hole pitch

unit: in.

31-17/32

Ceiling panel

92-53/64

36-7/64

9-29/64 9-29/64

97-29/32

65-53/64

45-5/16

35-3/64

(Ceiling panel dimensions)

7/82-11/64

36-7/64

45-5/16

Front view Right side view

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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 unit 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.

34-27/32

(885)

Unit: in. (mm)

34-27/32

(885)

Table 3-1

Type

Length

12, 18, 24, 36

ABCD

31-1/32

(788)

28-15/32

(723)

(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.

8-17/64

(210)

8-17/64

(210)

Unit: in. (mm)

3-15/32

(88)

3-15/32

(88)

Table 3-2

Type

Length

12, 18, 24

ABCD

4-29/64

(113)

4-29/64

(113)

6-13/16

(173)

6-13/16

(173)

10-5/64

(256)

12-9/16

(319)

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

B (suspension bolt pitch)

D (ceiling opening dimension)

A (suspension bolt pitch)

C (ceiling opening dimension)

Fig. 3-2

Drain outlet(other side)

(VP25)

Suspension lug

Refregerant tubing joint(liquid side) Refregerant tubing joint(gas side)

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.

Fig. 3-3

Over 19/32 (15)

Supplied bolt

Power supply outlet

Inter-unit control wiring

Full-scale installation diagram (printed on top of container box)

Fig. 3-4

1-3/8 (35)

Unit: in. (mm)

15/32 – 43/64

(12 – 17)

Unit: in. (mm)

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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.

Nuts and washers (use for upper and lower)

Suspension bolt

Suspension lug

(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)

Double nut

Connection pipe

(drain port)

Align the hose band with the end of the pipe

15/32 – 43/64 (12 – 17)

Fig. 3-5

Hose band

Bead

Supplied drain hose

Fig. 3-6

Drain insulator (supplied)

Fig. 3-7

Air bleeder prohibited

Hard PVC socket

VP-25

(Field supply)

Packing

(supplied)

Notch

Unit: in. (mm)

Hard PVC pipe

VP-25

(Field supply)

PVC adhesive

CAUTION

Tighten the hose clamps so their locking nuts face upward.

Fig. 3-8

(Fig. 3-6)

(2) After checking the drainage, wrap the supplied packing

and drain pipe insulator around the pipe. (Fig. 3-7)

●

NOTE

CAUTION

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

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

CAUTION

●

In cases where it is necessary to raise the height

of the drain piping, the drain piping can be raised to 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.

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

(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.

Over 3-15/16 in.

Water (Approx. 0.3 gal)

Plastic container

for water intake

Drain pan outlet

Fig. 3-12

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