Johnson Controls HIDM006B21S, HIDM008B21S, HIDM012B21S, HIDM015B21S, HIDM018B21S Installation And Maintenance Manual

...

Download

P00792Q

Installation

and

Maintenance

Manual

INVERTER-DRIVEN

MULTI-SPLIT SYSTEM

HEAT PUMP

AIR CONDITIONERS

IMPORTANT:

READ AND UNDERSTAND THIS MANUAL BEFORE USING THIS HEAT PUMP AIR CONDITIONER. KEEP THIS MANUAL FOR FUTURE REFERENCE.

Type Model

Ducted

(Medium Static)

(H,Y,C)IDM006B21S (H,Y,C)IDM008B21S (H,Y,C)IDM012B21S (H,Y,C)IDM015B21S (H,Y,C)IDM018B21S (H,Y,C)IDM024B21S (H,Y,C)IDM030B21S (H,Y,C)IDM036B21S (H,Y,C)IDM048B21S

ATTENTION

Each model number and all matching model numbers within a system must have the same version of software.

Follow these steps to verify that your product model numbers have the same version of software.

• Access the main printed circuit board in each product.

• Locate a white sticker with a P-XXXX number or

• Connect a service checker and locate the ROM number.

For further assistance, please contact our Technical Support Center at 1 (844) 873-4445 and select Option 2.

P00792Q-rev.2

Important Notice

● Johnson Controls Inc. pursues a policy of continuing improvement in design and performance in its products. As such, Johnson Controls Inc. reserves the right to make changes at any time without prior notice.

● Johnson Controls Inc. cannot anticipate every possible circumstance that might involve a potential hazard.

● This heat pump air conditioning unit is designed for standard air conditioning applications only. Do not use this unit for anything other than the purposes for which it was intended for.

● The installer and system specialist shall safeguard against leakage in accordance with local

pipetter and electrical codes. The following standards may be applicable, if local regulations are

not available. International Organization for Standardization: (ISO 5149 or European Standard, EN

378). No part of this manual may be reproduced in any way without the expressed written consent of Johnson Controls Inc.

● This heat pump air conditioning unit will be operated and serviced in the United States of America and comes with a full complement of the appropriate Safety, Danger, and Caution, Warnings.

● If you have questions, please contact your distributor or dealer.

● This manual provides common descriptions, basic and advanced information to maintain and service this heat pump air conditioning unit which you operate as well for other models.

● This heat pump air conditioning unit has been designed for a specic temperature range. For optimum performance and long life, operate this unit within the range limits according to the table below.

● This manual should be considered as a permanent part of the air conditioning equipment and should remain with the air conditioning equipment.

Product Inspection upon Arrival

1. Upon receiving this product, inspect it for any damages incurred in transit. Claims for damage, either

apparent or concealed, should be led immediately with the shipping company.

2. Check the model number, electrical characteristics (power supply, voltage, and frequency rating), and any accessories to determine if they agree with the purchase order.

3. The standard utilization for this unit is explained in these instructions. Use of this equipment for purposes other than what it designed for is not recommended.

4. Please contact your local agent or contractor as any issues involving installation, performance, or

maintenance arise. Liability does not cover defects originating from unauthorized modications

performed by a customer without the written consent of Johnson Controls, Inc. Performing any mechanical alterations on this product without the consent of the manufacturer will render your warranty null and void.

Temperature

Maximum Minimum

Cooling Operation

Indoor 89

F DB/73oF WB (32oC DB/23oC WB) 69oF DB/59oF WB (21oC DB/15oC WB)

Outdoor 118

F DB (48oC DB) * 14oF DB (-10oC DB) *

Heating Operation

Indoor 80

F DB (27oC DB) 59oF DB ( 15oC DB)

Outdoor 59

F WB (15oC WB) * -4oF WB (-20oC WB) *

DB: Dry Bulb, WB: Wet Bulb

* The temperature may change depending on the outdoor unit.

P00792Q-rev.2

TABLE OF CONTENTS

1. Introduction .....................................................................................................................................................1

2. Safety Instructions ...........................................................................................................................................1

3. Before Installation ...........................................................................................................................................7

3.1 Combination of Outdoor Unit and Indoor Unit ........................................................................................7

3.2 Transportation and Handling ..................................................................................................................7

3.3 Factory-Supplied Accessories ................................................................................................................7

3.4 Necessary Tools and Instrument List for Installation ..............................................................................7

4. Installation Location ........................................................................................................................................8

5. Installation Work .............................................................................................................................................8

5.1 Suspension Bolts .................................................................................................................................... 8

5.2 Marking Positions for Suspension Bolts and Piping Connections .......................................................... 9

5.3 Mounting Indoor Unit .............................................................................................................................. 9

5.4 Adjusting Level of Unit .......................................................................................................................... 10

5.5 Connecting the Supply Duct ................................................................................................................. 11

5.6 Setting the External Pressure ............................................................................................................... 12

6. Refrigerant Piping Work ................................................................................................................................13

6.1 Piping Materials .................................................................................................................................... 13

6.2 Piping Connection ................................................................................................................................14

7. Drain Piping ..................................................................................................................................................16

8. Electrical Wiring ............................................................................................................................................18

8.1 General Check .....................................................................................................................................18

8.2 Electrical Wiring Capacity ..................................................................................................................... 19

8.2.1 Field Minimum Wire Sizes for Power Supply ..............................................................................19

8.2.2 Details of Electrical Wiring Connection .......................................................................................19

8.3 Position of Electrical Wiring Connection ............................................................................................... 21

8.4 Wiring Connection ................................................................................................................................ 25

8.5 DIP Switches Settings ..........................................................................................................................26

8.6 External Static Pressure Setting ........................................................................................................... 27

8.7 Function Selection by Wired Controller ................................................................................................ 28

9. Test Run ........................................................................................................................................................29

9.1 Before Test Run ....................................................................................................................................29

9.2 Test Run ...............................................................................................................................................29

9.3 Alarm Code ..........................................................................................................................................31

P00792Q-rev.2

● For details on wiring between the indoor unit and the outdoor unit, refer to the "Installation and Maintenance Manual" for the outdoor unit.

● For details on the optional decorative panel, refer to the "Installation and Maintenance Manual" for the

optional decorative panel.

● For details on the optional controller, refer to the "Installation and Maintenance Manual" for that optional

controller module.

● For details on each optional part, refer to the "Installation and Maintenance Manual" for each optional part.

● For central station, refer to the "Installation and Maintenance Manual" for the central station.

1. Introduction

Forward this information, and the warranty to all installers and users. Ask end users to maintain copies for future reference.

(Refrigerant Piping Work) (Electrical Wiring Work) (Ref. Charge Work) (Test Run) (User)

2. Safety Instructions

Signal Words

Indicates a hazardous situation that, if not avoided, could result in death or serious injury.

Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.

Indicates information considered important, but not hazard-related (for example, messages relating to property damage).

General Precautions

To reduce the risk of serious injury or death, read these instructions thoroughly and follow all warnings or cautions included in all manuals that accompanied the product and are attached to the unit. Refer back to

these safety instructions as needed.

● This system should be installed by personnel certied by Johnson Controls, Inc. Personnel must be qualied according to local, state and national building and safety codes and regulations. Incorrect installation could cause leaks, electric shock, re or explosion. In areas where Seismic ‘’Performance requirements are specied, the appropriate measures should be taken during installation to guard

against possible damage or injury that might occur in an earthquake if the unit is not installed correctly, injuries may occur due to a falling unit.

● Use appropriate Personal Protective Equipment (PPE), such as gloves and protective goggles and, where appropriate, have a gas mask nearby. Also use electrical protection equipment and tools

suited for electrical operation purposes. Keep a quenching cloth and a re extinguisher nearby during

brazing. Use care in handling, rigging, and setting of bulky equipment.

● When transporting, be careful when picking up, moving and mounting these units. Although the unit may be packed using plastic straps, do not use them for transporting the unit from one location to another. Do not stand on or put any material on the unit. Get a partner to help, and bend with

your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum ns on the air conditioner can cut ngers, so wear protective gloves.

Read following sections carefully before installing this product.

Read over the "Installation and Maintenance Manual" for the outdoor unit as well.

P00792Q-rev.2

● Do not touch or adjust any safety devices inside the indoor or outdoor units. All safety features, disengagement, and interlocks must be in place and functioning correctly before the equipment is put into operation. If these devices are improperly adjusted or tampered with in any way, a serious accident can occur. Never bypass or jump-out any safety device or switch.

● Before servicing, turn-OFF the power supply and use accepted lockout and tag out procedures at all main switches.

● This unit is the pressurized system. Never loosen threaded joints while the system is under pressure and never open pressurized system parts.

● Johnson Controls will not assume any liability for injuries or damage caused by not following steps

outlined or described in this manual. Unauthorized modications to Johnson Controls products are

prohibited as they…

◦ May create hazards which could result in death, serious injury or equipment damage; ◦ Will void product warranties; ◦ May invalidate product regulatory certications; ◦ May violate OSHA standards;

Take the following precautions to reduce the risk of property damage.

● Be careful that moisture, dust, or variant refrigerant compounds not enter the refrigerant cycle during installation work. Foreign matter could damage internal components or cause blockages.

● If air lters are required on this unit, do not operate the unit without the air lter set in place. If the air

lter is not installed, dust may accumulate and breakdown may result.

● Do not install this unit in any place where silicon gases can coalesce. If the silicon gas molecules attach themselves to the surface of the heat exchanger, the nned surfaces will repel water. As a result, any amount of drainage moisture condensate can overow from the drain pan and could run

inside of the electrical box, possibly causing electrical failures.

● When installing the unit in a hospital or other facility where electromagnetic waves are generated from nearby medical and/or electronic devices, be prepared for noise and electronic interference Electromagnetic Interference (EMI). Do not install where the waves can directly radiate into the electrical box, controller cable, or controller. Inverters, appliances, high-frequency medical equipment, and radio communications equipment may cause the unit to malfunction. The operation of the unit may also adversely affect these same devices. Install the unit at least 10 ft. (3m) away from such devices.

● When a wireless controller is used, locate at a distance of at least 3.3 ft. (1m) between the indoor

unit and electric lighting. If not, the receiver part of the unit may have difculty receiving operation

commands.

● Do not install the unit in any location where animals and plants can come into direct contact with the outlet air stream. Exposure could adversely affect the animals and plants.

● Do not install the unit with any downward slope to the side of the drain adaptor. If you do, you may

have drain water owing back which may cause leaks.

● Be sure the drain hose discharges water properly. If connected incorrectly, it may cause leaks.

● Do not install the unit in any place where oil can seep onto the units, such as table or seating areas in restaurants, and so forth. For these locations or social venues, use specialized units with oil-resistant features built into them. In addition, use a specialized ceiling fan designed for restaurant use. These specialized oil-resistant units can be ordered for such applications. However, in places where large quantities of oil can splash onto the unit, such as a factory, even the specialized units cannot be used. These products should not be installed in such locations.

Installation Precautions

To reduce the risk of serious injury or death, the following installation

precautions must be followed.

● When installing the unit into…

▫ A wall: Make sure the wall is strong enough to hold the unit’s weight. It may be necessary to

construct a strong wood or metal frame to provide added support.

▫ A room: Properly insulate any refrigerant tubing run inside a room to prevent “sweating” that can

cause dripping and water damage to wall and oors.

P00792Q-rev.2

▫ Damp or uneven areas: Use a raised concrete pad or concrete blocks to provide a solid, level

foundation for the unit to prevent water damage and abnormal vibration.

▫ An area with high winds: Securely anchor the outdoor unit down with bolts and a metal frame.

Provide a suitable air bafe.

▫ A snowy area: Install the outdoor unit on a raised platform that is higher than drifting snow. Provide

snow vents.

● Do not install the unit in the following places. Doing so can result in an explosion, re, deformation, corrosion, or product failure.

▫ Explosive or ammable atmosphere ▫ Where a re, oil, steam or powder can directly enter the unit, such as nearby or above a kitchen

stove. ▫ Where oil (including machinery oil) may be present. ▫ Where corrosive gases such as chlorine, bromine, or sulde can accumulate, such as near a hot

tub or a hot spring. ▫ Where dense, salt-laden airow is heavy, such as in coastal regions. ▫ Where the air quality is of high acidity. ▫ Where harmful gases can be generated from decomposition.

● Do not position the drain pipe for the indoor unit near any sanitary sewers where corrosive gases may be present. If you do, toxic gases can seep into breathable air spaces and can cause respiratory

injuries. If the drain pipe is installed incorrectly, water leakage and damage to the ceiling, oor,

furniture, or other possessions may result. If the drain pipe becomes clogged, water may drip from the indoor unit. Do not install the indoor unit where such dripping can cause moisture damage or uneven locations: Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the unit to prevent water damage and abnormal vibration.

● Before performing any brazing work, be sure that there are no ammable materials or open ames nearby.

● Perform a test run to ensure normal operation. Safety guards, shields, barriers, covers, and protective

devices must be in place while the compressor/unit is operating. During the test run, keep ngers and

clothing away from any moving parts.

● Clean up the site when nished, remembering to check that no metal scraps or bits of wiring have been left inside the unit being installed.

After installation work for the system has been completed, explain the “Safety Precautions,” the proper use and maintenance of this unit to the customer according to the information in all manuals that came with the system. All manuals and warranty information must be given to the user or left near the Indoor Unit.

P00792Q-rev.2

Refrigerant Precautions

To reduce the risk of serious injury or death, the following refrigerant

precautions must be followed.

● As originally manufactured, this unit contains refrigerant installed by Johnson Controls. Johnson

Controls uses only refrigerants that have been approved for use in the unit’s intended home country

or market. Johnson Controls distributors similarly are only authorized to provide refrigerants that have been approved for use in the countries or markets they serve. The refrigerant used in this unit

is identied on the unit’s faceplate and/or in the associated manuals. Any additions of refrigerant into this unit must comply with the country’s requirements with regard to refrigerant use and should be

obtained from Johnson Controls distributors. Use of any non-approved refrigerant substitutes will void the warranty and will increase the potential risk of injury or death.

● If installed in a small room, take measures to prevent the refrigerant from exceeding the maximum allowable concentration in the event that refrigerant gases should escape. Refrigerant gases can cause asphyxiation (0.026 lbs/ft

(0.42 kg/m3) based on ISO 5149 for R410A). Consult with your distributor for countermeasures (ventilation system and so on). If refrigerant gas has leaked during the installation work, ventilate the room immediately.

● Before installation is complete, make sure that the refrigerant leak test has been performed. If

refrigerant gases escape into the air, turn OFF the main switch, extinguish any open ames and

contact your service contractor. Refrigerant (Fluorocarbon) for this unit is odorless. If the refrigerant

should leak and come into contact with open ames, toxic gas could be generated. Also, because the uorocarbons are heavier than air, they settle to the oor, which could cause asphyxiation.

● When installing the unit, and connecting refrigerant piping, keep all piping runs as short as possible, and make sure to securely connect the refrigerant piping before the compressor starts operating. If the refrigerant piping is not connected and the compressor activates with the stop valve opened, the

refrigerant cycle will become subjected to extremely high pressure, which can cause an explosion or re.

● Tighten the are nut with a torque wrench in the specied manner. Do not apply excessive force to the are nut when tightening. If you do, the are nut can crack and refrigerant leakage may occur.

● A compressor/unit comprises a pressurized system. Never loosen threaded joints while the system is under pressure and never open pressurized system parts.

● When maintaining, relocating, and disposing of the unit, dismantle the refrigerant piping after the compressor stops.

Electrical Precautions

Take the following precautions to reduce the risk of electric shock, re or

explosion resulting in serious injury or death.

● 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 serious injury or death.

● Before servicing, open and tag all disconnect switches. Never assume electrical power is disconnected. Check with meter and equipment.

● Only use electrical protection equipment and tools suited for this installation.

● Use specied cables between units.

● Communication cable shall be a minimum of AWG18 (0.82mm

), 2-Conductor, Stranded Copper. Shielded cable must be considered for applications and routing in areas of high EMI and other sources of potentially excessive electrical noise to reduce the potential for communication errors. When shielded cable is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.

● Use an exclusive power supply for the air conditioner at the unit’s rated voltage.

● Be sure to install circuit breakers (ground fault interrupter, isolating switch, molded case circuit

breaker and so on), with the specied capacity. Ensure that the wiring terminals are tightened securely to recommended torque specications. If a circuit breaker or fuse is frequently activated,

shut down the system and contact your service contractor.

P00792Q-rev.2

● Clamp electrical wires securely with a cable clamp after all wiring is connected to the terminal block. In addition, run wires securely through the wiring access channel.

● When installing the power lines, do not apply tension to the cables. Secure the suspended cables at regular intervals, but not too tightly.

● Make sure that the terminals do not come into contact with the surface of the electrical box. If the terminals are too close to the surface, it may lead to failures at the terminal connection.

● Turn OFF and disconnect the unit from the power supply when handling the service connector. Do not open the service cover or access panel to the indoor or outdoor units without turning OFF the main power supply.

● After stopping operation, be sure to wait at least ve minutes before turning off the main power switch. Otherwise, water leakage or electrical breakdown may result. Disconnect the power supply completely before attempting any maintenance for electrical parts. Check to ensure that no residual voltage is present after disconnecting the power supply.

● Do not clean with, or pour water into, the controller as it could cause electric shock and/or damage the unit. Do not use strong detergent such as a solvent. Clean with a soft cloth.

● Check that the ground wiring is securely connected. Do not connect ground wiring to gas piping, water piping, lighting conductor, or telephone ground wiring.

● If a circuit breaker or fuse is frequently activated, shut down the system and contact your service contractor.

P00792Q-rev.2

● Proper handling of this unit requires two-people. Safe handling and installing the indoor unit requires the

strength of two people. Mounting the unit alone may cause injury due to fall of the unit. Although the unit

may be girded with steel banding, do not use it for transportation. Avoid contact with nned surfaces of the heat exchanger as sharp edges can cause severe injury to hands and ngers. Use appropriate work

gloves for the job.

NOTICE

● The optional decorative panel can become deformed if the positioning of the indoor units suspension brackets are not stable or level. Condensation can accumulate in low spots as a result due to escaping air through any resulting gaps between the indoor unit and the decorative panel.

● Check to ensure that the drain hose discharges moisture properly. If connected incorrectly, it can result in

leakage and damage to furniture.

● Make sure to use the factory-supplied drain hose and hose clamp. Other makes can cause moisture leakage.

● Do not bend or twist the factory-supplied drain hose. This could compromise the seal and result in moisture leakage.

● Do not apply an excessive force to the drain pipe connection. This can also compromise the seal

properties of the connection.

● Verify that the installed unit is level with oor and ceiling surfaces. Any variance or inclination can cause

moisture to back up into the drain pan, overow, and seepage onto ceiling or wall surfaces, and cause

damage to carpeted surfaces or furniture below.

● Do not install this system in close proximity to septic sewer lines where ammable and toxic gases can coalesce.

● Inspect the drain pan before the onset of winter to drain away all accumulated moisture in the pan.

● The heat exchanger of indoor unit overheats whenever there is a slight amount of refrigerant circulating

during slowdown or stoppage. As a result, moisture in the drain pan evaporates where it can condense on ceiling or wall surfaces.

● After the drain check is completed, insert the rubber plug again and seal the gap with a silicon sealant.

Electrical Installation

In some cases, the packaged air conditioner may not be operated normally under the following cases:

● When electrical power for the packaged air conditioner is supplied from the same power transformer as the device*.

● When the power supply wiring for the device* and the packaged air conditioner are located close to each other:

Device*: (Example): Lift, container crane, rectier for electric railway, inverter power device, arc

furnace, electric furnace, large-sized induction motor, and large-sized switch. It consumes large quantities of electrical power.

Regarding that mentioned above, surge voltage may be inducted into the power supply wiring for the crated air conditioner due to a spike in power consumption for this device and an activation of the switch. Check

the eld regulations and standards before performing any electrical work in order to safeguard the power

supply for the crated air conditioner unit.

P00792Q-rev.2

3.1 Combination of Outdoor Unit and Indoor Unit

The combination capacity of indoor unit against the outdoor unit is selected depending on the outdoor unit

capacity. Refer to the "Installation and Maintenance Manual" for the outdoor unit to decide the required

combination of indoor and outdoor units, and the combination unit capacity.

3.2 Transportation and Handling

•

Transport the product as close to the installation location as possible before unpacking.

•

Do not lay any objects on the indoor unit.

•

The indoor unit comes crated upside-down with the foam polystyrene drain pan positioned on top.

Do not invert the unit until it is ready to be suspended above the oor. Inverting the unit while on the oor

will crush the drain pan. Do not handle the unit by grabbing at the polystyrene pan and other air outlets as they are fragile and will sustain damage.

•

The indoor unit handle is fabricated from foam polystyrene and is susceptible to breakage if any excessive force is applied as a result of mishandling of the unit during installation.

3. Before Installation

3.3 Factory-Supplied Accessories

Check to ensure that the following accessories are packed with the indoor unit.

The screws, washers, and are nuts are packed in the pipe insulation.

NOTICE

3.4 Necessary Tools and Instrument List for Installation

NOTE: Use tools and measuring instruments (vacuum pump, gas hose, charging cylinder, manifold gauge) exclusively for refrigerant R410A.

No. Tool No. Tool

1 Handsaw 11 Wrench

2 Phillips Screwdriver 12 Charging Cylinder

3 Vacuum Pump 13 Manifold Gauge

4 Refrigerant Gas Hose 14 Wire Cutter

5 Megohmmeter 15 Gas Leak Detector

6 Copper Pipe Bender 16 Level

7 Manual Water Pump 17 Clamps for Solderless Terminals

8 Pipe Cutter 18 Hoist (for Indoor Unit)

9 Brazing Kit 19 Ammeter

10 Hexagonal Wrench 20 Voltage Meter

The controller and branch piping are optional accessories which are not included with the indoor unit. If necessary, please contact your contractor.

Accessory Purpose

Washer (M10)

Screw (M4)

Hose Clamp

Qty.

For Unit Suspension

For Fixing Flanges

For Drain Pipe Connection

Drain Hose

1 For Drain Pipe Connection

Rubber Bush

1 For Connecting Hole

Cable Clamp

PVC Tube

For Fixing PVC Tube

For Separating Communication Cables and Wired Controller Cables from Power Supply Wirings ID 1/2 inch (12mm)

P00792Q-rev.2

4. Installation Location

Figure. 4.1 Operation and Installation Space

(1) Install the indoor unit, allowing for proper

clearance for operation and maintenance access, as shown in Figure. 4.1.

Rear Side

Min. 39-3/8

(1000)

View from Top

Front Side

5-1/8 (130)

Min. 23-5/8

(600)

Electrical Box

inch (mm)

Service Access Door (Min □17-11/16 (450))

In case that the ceiling board can not be detected for servicing, prepare a service access door below the indoor unit for removing the indoor unit.

Min. 39-3/8

(1000)

Min. 23-5/8

(600)

(2) Consider the air distribution from the indoor unit to the space of the room, and select a suitable location

so that uniform air temperature in the room can be obtained.

(3) Do not leave combustible materials inside the service space of the indoor unit.

(4) Avoid obstacles which may hamper the air intake or the air discharge ow.

(5) Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its mist ows to the

indoor unit. The oil will deposit on the heat exchanger, thereby reducing the indoor unit performance, and may deform and in the worst case, break the plastic parts of the indoor unit.

(6) Pay attention to the following points when the indoor unit is installed in a hospital or other facilities

where there are electronic waves from medical equipment.

(a) Do not install the indoor unit where the electromagnetic wave is directly radiated to the electrical

box, communication cable or wired controller.

(b) Install the indoor unit and components as far away as practical or at least 9.8ft (3m) from any

electromagnetic wave radiator.

controller cable in it. Then, connect the ground wiring with the box and the tube.

(d) Install a noise lter when the power supply emits harmful noises.

(7) To avoid any corrosive action to the heat exchangers, do not install the indoor unit in an acid or alkaline

environment.

5. Installation Work

5.1 Suspension Bolts

(1) Determine the nal location and installation

orientation of the indoor unit with respect to the space allowed for piping, wiring, and maintenance access.

(2) Mount suspension bolts, as shown in Figure

5.1.

5-7/8 to 6-5/16

Insert (221 to 331 lbs)

I Beam

(inch)

Suspension Bolt (W3/8 or M10)

Anchor Bolt (W3/8 or M10)

Steel

Concrete

For Wooden Beam Suspension

Wooden Bar (2-3/8 to 3-9/16 Square)

Wooden Beam

Nut

Square Washer

Suspension Bolt

For Concrete Slab For Steel Beam

Figure. 5.1 Mounting of Suspension Bolts

P00792Q-rev.2

5.3 Mounting Indoor Unit

Hang the indoor unit as shown in Figure 5.3.

Field-Supplied Parts * Suspension Bolts: 4-M10 or W3/8 * Nut: 8-M10 or W3/8

5.2 Marking Positions for Suspension Bolts and Piping Connections

(1) Mark-off the positions for the suspension bolts, refrigerant pipe connections, and drain pipe connection.

(2) Installation dimensions are shown in Figure 5.2.

Figure 5.2 Suspension Bolts

Suspension Bracket

Suspension Bolts (4-M10 or W3/8)

(Field-Supplied)

False Ceiling Side

Nut & Washer

(8-M10 or W3/8)

Unit

Figure 5.3 Mounting Indoor Unit

1 (25)

7/8 (22)

9/16

(15)

1 (25)

7/8 (22)

9/16

(15)

a (for Suspension Bolt)

Drain Pipe Connection

Refrigerant Gas Pipe Connection

Refrigerant Liquid Pipe Connection

Unit: inch (mm)

(25)

4 - 1-9/16 x 1/2 (40 x 12)

(for Suspension Bolt)

(for Suspension Bolt

)

Dimension

Model

a b c d e f g

(H,Y,C)IDM006B21S (H,Y,C)IDM008B21S (H,Y,C)IDM012B21S

27-9/16

(700)

25-9/16

(650)

28-3/8

(720)

26-5/8

(676)

12-5/8

(321)

9-11/16

(246)

16-1/16

(408)

(H,Y,C)IDM015B21S (H,Y,C)IDM018B21S

37-3/8

(950)

35-7/16

(900)

28-3/8

(720)

26-5/8

(676)

12-5/8

(321)

9-11/16

(246)

16-1/16

(408)

(H,Y,C)IDM024B21S (H,Y,C)IDM030B21S

45-1/4

(1,150)

43-5/16

(1,100)

31-1/2

(800)

29-3/4

(756)

13-9/16

(345)

10-5/8

(270)

16-15/16

(431)

(H,Y,C)IDM036B21S (H,Y,C)IDM048B21S

57-1/16

(1,450)

55-1/8

(1,400)

31-1/2

(800)

29-3/4

(756)

13-9/16

(345)

10-5/8

(270)

16-15/16

(431)

P00792Q-rev.2

Figure 5.5 Suspended Indoor Unit

(2) Suspending the Indoor Unit

* Hook the suspension bracket to the nut and washer of each hanging bolt as shown, starting at the

opposite side and working over to the service cover side.

* After verifying that the nut and washer are correctly afxed to the retainers on the suspension bracket,

hook the suspension bracket of the service cover side to the nut and washer.

(Install the suspension bolts away from the unit when fastening.)

Figure 5.4 Suspension Bolts and Nuts

(1) How to install Nuts or Suspension Bolts

Install nuts on each of the four hanging bolts, as shown in Figure 5.4.

Approx.

1-15/16 inches

Washer

Nut

Washer

Indoor Unit

Retaining Nut

5.4 Adjusting Level of Unit

(1) Use a level to verify that the unit base is perfectly level with the oor. There should be no degree of

slope present.

3/16 inch

Figure 5.6 Foundation Gradient

(2) The unit should be installed so that the rear side of the unit is slightly (0 to 3/16 inch (0 to 5mm)) lower

than the front side, to allow and promote drainage discharge.

(3) Tighten the bolts of the suspension nuts with the suspension brackets after adjustment is completed.

Special plastic paint must be applied to the bolts in order to prevent them from loosening.

NOTE:

During position the installation process, keep the unit well covered with vinyl cover and related components covered until it is time to hoist into position.

Suspension Bolt

Suspension Bracket

Nut and Washer

Right Side

(Service Cover Side)

Indoor Unit

Left Side

P00792Q-rev.2

5.5 Connecting the Supply Duct

(1) The supply duct should be connected to the indoor unit through canvas ducts, in order to avoid

abnormal sound vibration (Refer to Figure 5.7). The unit is equipped with a pre-drilled duct ange for the

return and supply duct connection.

(2) Attach the vibration proof rubber to the Suspension Bolt in order to minimize sound from unit operation.

(3) Duct material should be a non-ammable material type.

(4) Perform heat insulation work over the duct to prevent condensation.

● Ifalowersoundlevelisrequired,installtheeld-suppliedsilencer.

● Designductarrangementas"UnitExternalStaticPressure=PressureDropofDuct+Pressure

DropofAirOutletandAirInlet". Poorlydesignedductwillresultinsound,comfortandwaterblow-offissues.

<NoticeforOutdoorAirIntake(FreshAir)>

This air conditioner unit is NOT designed for outdoor use. The following items are to be strictly observed when designing a system for fresh air intake from the outdoors.

1) Considering Ventilation Load

Calculate the air-conditioning load properly with the load of the outdoor air intake. If the load of the outdoor

air is not considered, it may cause insufcient cooling or heating operation due to an excessive air-

conditioning load against the unit capacity.

2) Limits on Outdoor Air Intake

•

Do NOT ingest air from the outdoors directly into the indoor unit. If an outdoor fresh air intake is necessary for air-conditioning, Johnson Controls Inc. recommends the installation of the ERV (Energy Recovery Ventilation) (Field-supplied) system. The outdoor air shall be processed by the ERV and mixed with indoor air. Only then, is air that now intermixed can be drawn into the indoor unit.

NOTE:

The temperature of the air that is intermixed should fall within the working range as shown below.

Heating Cooling

Working Range of Required Indoor Room Temperature

59 to 80

F DB

(15 to 27

C DB)

F DB/59oF WB (21oC DB/15oC WB)

F DB/73oF WB (32oC DB/23oC WB)

•

If the ERV is not used for processing the outdoor air, it can result in insufcient heating/cooling operation

or condensation build-up on the inside surfaces of the indoor unit or duct depending on the outdoor air conditions.

•

The volume of fresh air is recommended to be within 20% of the airow volume “Hi2” according to the specication’s table in the technical documentation. If it exceeds 20%, ingested condensation will buildup on the inside surfaces of the indoor unit and the airow volume of the indoor unit cannot be adjusted due to increasing pressure loss of air intake caused by insufcient internal static pressure.

•

When the outdoor air is ingested into the indoor unit, make sure to install an air lter capable of keeping

the indoor unit free from dust.

3) Facilities for Outdoor Air Intake

•

Use the damper or the duct fan to adjust fresh air volume.

•

Do NOT ingest in fresh air from the outdoors directly into the indoor unit. Installing and integrating ERV as a part of the system mix is recommended if incoming air from outdoors is routinely drawn indoors.

•

When using ERV or installing a duct fan, make sure to install the interlock circuit between them and the indoor unit fan motor. Make sure to install an ERV in accordance with this manual.

•

Install thermal insulation on surfaces of interconnecting ducts to prevent the build-up of condensation.

P00792Q-rev.2

5.6 Setting the External Pressure

Refer to Section 8.6 "External Static Pressure Setting".

Static Pressure

in.W.G.

(Pa)

0.14 - 0.20* - 0.32 (35 - 50* - 80)

*: Before Shipment

Figure 5.7 Duct Connection Example

An air filter which can collect dust.

Outdoor Air (with Air Filter)

Damper for Adjusting Air Volume

SilencerSilencer Canvas DuctCanvas Duct

Thermal Insulation

Damper for Fine Adjusting Air Volume

Air Outlet

Horizontal

Air Inlet (with Air Filter)

ERV (Energy Recovery Ventilation)

Indoor Unit

Service Access Panel

(17-11/16 inches x 17-11/16 inches)

● Ifalowersoundlevelisrequired,installeld-suppliedsilencer.

● Thefacilitydesignshouldbe“UnitExternalStaticPressure=DuctPressureLoss+Suction/

DischargePressureLoss”. Ifductpressurelossfallbelowtheexternalstaticpressure,airspeedwillincreaseandnoiselevels alongwithit.Also,watermaysplashoutfromunitandthemotorprotectioncircuitactivated. Problemssuchastheinabilitytoadjustairspeedcanoccuriftheexternalunitstaticpressurefall belowtheductpressureloss.Adjusttheairowcontroldamperorshiftthestaticpressurecontrol switchtoanequallevelbetweentheexternalstaticpressureandductpressureloss.(referto “SettingtheExternalPressure”sectionforthedetails.)

● Basically,thisunitisconguredtoinstalltheductsontheinletsideandtheoutletside.Askfor moreinformationonusingreturnductsintheceiling.

P00792Q-rev.2

6. Refrigerant Piping Work

Table 6.1 Piping Size

inch (mm)

Model Gas Piping Liquid Piping

(H,Y,C)IDM006B21S (H,Y,C)IDM008B21S (H,Y,C)IDM012B21S (H,Y,C)IDM015B21S

1/2 (12.7) 1/4 (6.35)

(H,Y,C)IDM018B21S (H,Y,C)IDM024B21S (H,Y,C)IDM030B21S (H,Y,C)IDM036B21S (H,Y,C)IDM048B21S

5/8 (15.88) 3/8 (9.52)

(3) Prepare the eld-supplied copper piping.

(4) Select clean copper pipes. Make sure there is no dust and moisture inside.

(5) The refrigerant oil used in combination with refrigerant R410A is susceptible to problems relating to

moisture contamination, oxide lm, oil, and fat. Exercise special care during the installation so that

moisture, particulate contamination, or old refrigerant oil will not enter the refrigerant cycle. Otherwise, impurities may adhere to the expansion valve and it may prevent the proper operation.

(6) Caution: When cutting piping, do not use conventional tools such as saws and grinding wheel cutting

disks produce harmful metallic lings that can damage a refrigerant system. Use a pipe cutter to eliminate the chances of metal lings produced by the cutting operation. After the cut is made, blow out

each pipe with dry compressed air or nitrogen to remove this residue before making pipe connections.

6.1 Piping Materials

(1) Tolerances for refrigerant piping lengths depend on the combination with the outdoor unit. Refer to the

“Installation and Maintenance Manual” for the outdoor unit for details.

(2) Select the piping size from the following table.

For details on refrigerant piping work, vacuum pump, and refrigerant charge, refer to the "Installation and Maintenance Manual" for the outdoor unit.

Usethespeciednon-ammablerefrigerant(HFCR410A)fortheoutdoorunitrefrigerantcycle.Do notchargetheunitwithanythingotherthanHFCR410A,suchashydrocarbonrefrigerants(propane andIsobutene),oxygen,andotherammablegases(acetylene,ammonia,andsoforth),orany poisonousgaseswheninstalling,maintainingandmovingtheunit.Thesesubstancesarevolatile anddangerousandcanresultinre,explosion,andseriousorfatalinjuries.

In Case of Getting the Pipe Through a Hole in the Wall

Correct

CorrectIncorrect Incorrect

Correct Incorrect

HoleHole

Attach a cap or put a plastic bag over the pipe end.

Rubber Band

Do not lay the pipe directly on the ground.

Rain water can come in.

In Case of Rain

P00792Q-rev.2

inch (mm)

Diameter

(d)

-0.02 (-0.4)

1/4 (6.35) 0.36 (9.1)

3/8 (9.52) 0.52 (13.2)

1/2 (12.7) 0.65 (16.6)

5/8 (15.88) 0.78 (19.7)

(2) Perform the aring work as shown below.

6.2 Piping Connection

(3) Use specic are nut attached with the unit.

(4) Verify that there are no scratches, burrs stuck to internal surfaces, or surface deformations at the ared

opening.

0.016 ~ 0.031R

φA

φd

(5) Before tightening the are nut, apply the (Field-Supplied) refrigerant oil in a thin layer over the ared

part. (Do not apply the oil on other areas.) Tighten the are nut for the liquid pipe to the specied torque with two spanners. Then, tighten the are nut for the gas piping in the same way. After the tightening

work has been completed, check that no refrigerant leakage occurs.

NOTE:

Refrigerant oil is eld-supplied. [ Polyvinyl Ether Oil FVC68D (Idemitsu Lubricants America) ]

Required Tightening Torque (JIS B 8607)

Pipe Size Tightening Torque

1/4 inch (6.35 mm) 10.3 - 13.3 ft·lbs (14 - 18 N·m)

3/8 inch (9.52 mm) 25.1 - 31.0 ft·lbs (34 - 42 N·m)

1/2 inch (12.7 mm) 36.1 - 45.0 ft·lbs (49 - 61 N·m)

5/8 inch (15.88 mm) 50.2 - 60.5 ft·lbs (68 - 82 N·m)

Drain Pipe Connection VP25Refrigerant Gas Pipe Connection

Refrigerant Liquid Pipe Connection

A (Refrigerant Gas Pipe Connection)

3-9/16 (90) (Drain Pipe Connection)

B (Refrigerant Liquid Pipe Connection)

(1) Position of piping connection is shown below.

Unit: inch (mm)

Model A B C D E F G H

(H,Y,C)IDM006 - 008B21S

2-3/4

(70)

3-5/8

(92)

7-3/16

(182)

8-3/4

(222)

4-5/8 (118)

12-5/8

(321)

9-11/16

(246)

16-1/16

(408)

(H,Y,C)IDM015B21S

3-1/16

(77)

3-5/8

(92)

7-3/16

(182)

8-3/4

(222)

4-5/8 (118)

12-5/8

(321)

9-11/16

(246)

16-1/16

(408)

(H,Y,C)IDM018B21S

3-1/16

(77)

3-5/8

(92)

7-3/16

(182)

8-3/4

(222)

4-5/8 (118)

12-5/8

(321)

9-11/16

(246)

16-1/16

(408)

(H,Y,C)IDM024 - 030B21S

3-1/8

(80)

3-15/16

(100)

5-7/8 (150)

7-1/2

(190)

3-11/16

(94)

13-9/16

(345)

10-5/8

(270)

16-15/16

(431)

(H,Y,C)IDM036 - 048B21S

3-1/8

(80)

3-15/16

(100)

5-7/8 (150)

7-1/2

(190)

3-11/16

(94)

13-9/16

(345)

10-5/8

(270)

16-15/16

(431)

Do not apply the refrigerant oil to the outside of the

ared opening.

Apply Refrigerant Oil.

P00792Q-rev.2

(6) Wherever buried piping exists on site, make sure there is a service doorway to provide adequate access

to inspect piping sockets and elbows, and for interconnecting parts.

(7) Piping must be reinforced to withstand earthquakes so as not to be damaged by an external force.

(8) Do not tightly secure refrigerant piping to accommodate expansion and contraction.

(9) Prevent the pipes from contacting weak portions such as wall, ceiling, etc. (Otherwise, abnormal sound

may be heard due to vibration of the piping.)

(10) Test for air-tight integrity. The air-tight procedures should be performed in accordance with the

"Installation and Maintenance Manual" for the outdoor unit.

(11) If temperature and humidity inside the ceiling exceed 80.6°F (27°C)/RH80%, condensation occurs

on the surface of the accessory insulation. Wrap additional insulation (approximately 3/16~3/8 inch (5~10mm) thickness) around the accessory insulation of the refrigerant pipe as a preventive measure.

(12) Insulate each are connection without gap with accessory insulations to prevent condensation. Then

insulate each refrigerant pipe as well.

Fasten with cable clamps at 3 locations along the pipe (Accessory).

Fix the vinyl tape position at the vertical part

(Insulation for Refrigerant Pipe (Accessory)).

Securely fasten cable clamps and the vinyl tape in order to prevent the accumulation of moisture.

Unit Side

Check for any clearance between

the indoor unit and the insulation.

Insulation Material (Factory-Supplied)

Insulation for Refrigerant Pipe (Field-Supplied)

Refrigerant Pipe (Field-Supplied)

P00792Q-rev.2

(1) Figure 7.1 shows all drain piping connections.

(2) Prepare a polyvinyl chloride piping with 1-1/4 inches (32mm) outer diameter.

(3) Fasten the tube to the drain hose with the adhesive agent and the eld-supplied clamp.

The drain piping must be performed with a DOWN-SLOPE pitch of 1/25 to 1/100.

(4) Insulate the drain piping after connecting the drain hose.

7. DrainPiping

Perform drain piping work and attach the insulation before attempting any refrigerant piping work.

9-1/4

2-5/16

11-7/16

1-15/16 to

22-11/16 (Max.)

14-3/4 to 35-7/16 (Max.

)

(Drain-Up Length)

Drain Piping (PVC Tube) (Field-Supplied)

1/25 to 1/100 Down-Slope

Unit: inch

Suspension Bracket (Field-Supplied)

Elbow Pipe

(Field-Supplied)

Lift Piping for Drain-Up (PVC Tube) (Field-Supplied)

Indoor Unit

Drain Pump

Drain Pan

Rubber Boss

Drain Hose (L: 11-13/16) (Accessory)

14-15/16 1

7-3/8

Figure 7.1 Drain Piping

Common

Drain Piping Connection

1/25 to 1/100 Down-Slope

Common Drain Piping

This drain pipe shall be

separating from other pipes.

Incorrect: Upward Slope

Unit

Rising Part

Incorrect

Correct

Indoor Unit

Auxiliary Drain Pan (Field-Supplied)

To the Atmosphere

Figure 7.2 Auxiliary Drain Pan

NOTE:

If the relative humidity of a parcel of ambient

air exceeds 80%, install a (eld-supplied)

auxiliary drainage pan beneath the indoor unit as shown in Figure 7.2.

P00792Q-rev.2

After all drain piping work and electrical wiring is complete, verify that water ows smoothly as in the

following procedure.

Verication using a Float Switch

a. Turn ON the power supply. b. Pour in 68 to 84oz (2 to 2.5 liters) of water into the drain pan.

c. Check to ensure that water ows smoothly with no leaks anywhere along the line. If no water is

present at the end of the drain pipe opening, pour another 68oz (2 liters) of water into the drain pan.

NOTICE

P00792Q-rev.2

8. Electrical Wiring

8.1 General Check

(1) Make sure that the eld-selected electrical components: (main power switches, circuit breakers, wires,

conduit connectors, and wire terminals) have been properly labeled in accordance with electrical data

as specied in the Engineering Manual. Make sure that the components comply with the National

Electrical Code (NEC).

(2) Check to ensure that the power supply voltage is within ±10% of the rated voltage.

(3) Check the capacity of the electrical wires.

If the power supply capacity is too low, the system cannot be started due to a voltage drop.

(4) Verify that the ground wiring is securely connected.

● Allelectricalworkmustbedoneasoutlinedinthismanualandinaccordancewiththismanual.

Substandardworkcanresultinreanddamagetotheunit.

● Usespeciedcablesbetweenunitsandchoosethecablescorrectly.Ifnot,anelectricalshockor

remayoccur.

● DonotopentheservicecoveroraccesspanelfortheindoororoutdoorunitswithoutturningOFF

themainpowersupply.Itcanresultinanelectricalshock.

● TurnOFFthemainpowerswitchoftheindoorunitandtheoutdoorunitbeforeattemptinganyelectrical

wiringworkoraperiodicalcheckisperformed.Ifnot,itwillresultinanelectricshockorare.

● Checktoensurethattheindoorfanandtheoutdoorfanhavestoppedbeforeattemptingany

electricalwiringworkorforanyscheduledelectricalworkthatisbeingperformed.

● Tightenscrewsaccordingtothefollowingtorque.

 M3.5:0.9ft·lbs(1.2N·m)  M4: 0.7to1.0ft·lbs(1.0to1.3N·m)

● Secureallcablestogetherwithzip-tiesandsealtheconnectingholeagainsttheonslaughtof moisture and insects.

● Runtheelectricalwiringthroughtheconnectingholeinthesidecoverwhenusingconduit.

● Securethewiredcontrollercableusingthecableclampinsidetheelectricalbox.

P00792Q-rev.2

8.2 Electrical Wiring Capacity

8.2.1 Field Minimum Wire Sizes for Power Supply

•

This equipment can be installed with a Ground Fault Circuit Interrupter (GFCI), which is a recognized

measure for added protection to a properly grounded unit. Install appropriate sized breakers / fuses / overcurrent protection switches and wiring in accordance to local, state and NEC codes and requirements. The equipment installer is responsible for understanding and abiding by applicable codes

and requirements. Failure to use a GFCI can result in electrical shock or re.

•

Do not operate the system until all the check points have been cleared.

(A) Verify that electrical resistance is more than one megaohm by measuring the resistance between

ground and the terminals of the various electrical components. If less than one megaohm, do not

activate the system until the electrical current drain is found and repaired. (B) Check to ensure that the stop valves for the outdoor unit are fully opened, and then start the system. (C) Check to see that the main power has been switched ON for longer than 12 hours prior activating

the system. Power to the crankcase heater needs this time interval to warm the compressor oil up to

operating temperature.

•

Do not touch any of the parts by hand at the discharge gas side, since the compressor chamber and the

pipes at the discharge side are heated higher than 194oF (90oC).

<HeatPumpSystem> <HeatRecoverySystem>

8.2.2 Details of Electrical Wiring Connection

The electrical wiring capacity of the outdoor unit should be referred according to the "Installation and Maintenance Manual" for the outdoor unit. Adjusting the DIP switches may be required depending on the

arrangement with the outdoor unit. Select wiring capacity according to the table 8.1. Install a GFCI (Ground Fault Circuit Interrupter) and main switch as shown in each of the system diagrams below.

Outdoor Unit

Indoor Unit

Switchbox

Outdoor Unit Power Supply

Indoor Unit Power Supply

Indoor Unit

GFCI

Main Switch

GFCI

Main Switch

Refer to the “Installation and Maintenance Manual” for the connected outdoor unit for details of wire,

GFCI and main switch for outdoor unit.

Outdoor Unit Power Supply

Outdoor Unit

Change-Over

Box

Indoor Unit Power Supply

Indoor Unit

Switchbox

Indoor Unit

GFCI

Main Switch

GFCI

Main Switch

Refer to the “Installation and Maintenance Manual” for the connected outdoor unit for details of wire,

GFCI and main switch for outdoor unit.

P00792Q-rev.2

Table 8.1 Recommended Wiring Capacity and Size

Model

Power

Supply

Minimum Wire Thickness

[AWG (mm

)]

GFCI

<Ground Fault

Circuit Interrupter>

Main Switch

MCA

<Minimum

Circuit

Ampacity>

Power

Supply

Wiring Size

< Main >

Ground

Wiring

Size

Communication

Cable Size

Nominal

Current

Nominal

Sensitive

Current

Nominal

Current

Fuse

[A] [mA] [A] [A] [A]

(H,Y,C)IDM006B21S

1~,

208/230V

60Hz

18 (0.82)

(0.82)

18 (0.82) 15 30 15 15

0.60

(H,Y,C)IDM008B21S 0.60

(H,Y,C)IDM012B21S 0.60

(H,Y,C)IDM015B21S 0.60

(H,Y,C)IDM018B21S 0.60

(H,Y,C)IDM024B21S 1.01

(H,Y,C)IDM030B21S 1.01

(H,Y,C)IDM036B21S 1.01

(H,Y,C)IDM048B21S 1.01

NOTES:

1) Follow local codes and regulations when selecting eld wiring.

2) Select a GFCI with an activation speed of (0.1 second or less).

3) Total operating current is less than 12A.

● Check for the recommended size GFCI shown in the table 8.1.

● Between indoor and outdoor units, use dual-conductor, AWG18 (0.82mm

) stranded copper cable for communication cable. Do not use any cable with more than two conductors. Twisted pair or shielded cable can be used in environments with excessive electrical noise to reduce the possibility of communication errors between system components. Total cable length should not exceed 3281 ft (1000m).

● Select the wiring size, GFCI (Ground Fault Circuit Interrupter) in accordance with the regulations for each

region, the "Installation and Maintenance Manual", and the dedicated electrical circuit that must be used.

● Outside of the indoor unit, installation of the power supply wiring, communication cable, and wired controller cable should be spaced as far apart as possible.

NOTICE

P00792Q-rev.2

8.3 Position of Electrical Wiring Connection

• The electrical wiring connection for the indoor unit is shown in Section 8.2.2.

• The connection at the terminal block for the indoor unit is shown below. Check the outdoor unit for the combination before the wiring work begins. Screw fasteners at the terminal block should be tightened

according to recommended torque specications as shown in the table below.

Torque Specications for Terminals

Screw Size Torque Specication

TB1 M4

0.7 - 1.0

(1.0 - 1.3

ft·lbs N·m)

TB2 M3.5

0.9

(1.2

ft·lbs N·m)

Terminal Block for Power Supply Wiring

TB1

Terminal Block for Communication Cable

TB2

L1 L2

12AB

(A)

(B)

(C)

Screw

● Do not connect the main power supply wiring to the communication

line (Terminals A, B, 1 and 2 of TB2). If these are connected, the printed circuit board (PCB) will be destroyed.

● Note the following for wire connections at TB1 and TB2:

(A) Attach a piece of insulation tape or sleeve at each terminal.

(B) Maintain a safe distance between the electrical box and the

terminals to prevent a short circuit.

NOTICE

P00792Q-rev.2

(1) Connect the cable for the optional controller or the optional extension cable to the terminals inside the

electrical box through the connecting hole of the cabinet.

(2) Connect the power supply and the ground wiring to the terminals in the electrical box.

(3) Connect the cables between the indoor unit and the outdoor unit to the terminals inside the electrical box.

(4) Connect cables to their corresponding terminal number and the similarly marked band.

(5) Connect the communication cable between those indoor units connected to the same outdoor unit.

(6) Do not connect the main power supply wiring to the communication line (Terminals A, B, 1 and 2 of

TB2). If connected, the printed circuit board (PCB) will be destroyed.

(7) Tightly clamp the power supply wiring and communication cables using the cable clamp inside the

electrical box.

NOTE:

When the standard wire is used for the eld-wiring

connection, the M4 crimping terminal should be used. When the single wire is used, fashion it into the shape as shown at right and connect it in order to tighten the washer uniformly. The screws at the terminal block should be tightened according to the torque

specication as shown in the table above.

Stranded Wire Single Wire

Connect it with

Crimping Terminal.

Connect it Direct

As Shown Below

(8) All electrical work should be performed in strict accordance with electrical schematics in the "Installation

and Maintenance Manual".

(9) If Power Supply Voltage (208V/230V) is introduced into the Communication Line:

If 208V/230V are applied to the communication line at (Terminals 1 and 2 of TB2) by mistake, the fuse on the PCB for the communication line will blow. In this case, perform the recovery work as shown in the diagrams below.

(a) Reconnect the wirings correctly. (b) Set the No.1 pin at DSW7 (on the PCB) to ON.

Upon PCB recovery after the fuse has been replaced, if 208V / 230V is reintroduced into the

communication line, the PCB will be seriously damaged and will not recover.

L1RN

C 208V/230V

Incorrect Wiring Reconnect wirings correctly.

AB12

L1RN

AC 208V/230V

AB12

ON OFF

DSW7

Set No.1 Pin at ON side.

PCB

P00792Q-rev.2

1. The DIP switch settings for the outdoor unit should be performed in accordance with the "Installation and

Maintenance Manual" for the outdoor unit.

2. Be aware that communication cable for the wired controller is required in these instances:

a. The following functions are set to the sub unit which is not installed with the wired controller.

● Remote ON/OFF function settings, (No.1, 2, and 3), (External Input / Output Function)

● Power supply ON/OFF functions, (No.1 and 2), (Function Selection)

● Prohibiting the wired controller after manual stoppage (External Input / Output Function)

● Group setting by the centralized controller

b. The combination of twin, triple, or quad is controlled by single wired controller.

c The address for the indoor unit is changed from the wired controller.

NOTICE

● VRF Systems

(a) Wired Controllers to each Unit for Individual Operation Setting

(b) Single Wired Controller for Individual Operation Setting

(10) Wired Controller Connection

Outdoor Unit

A B

Outdoor Unit

Indoor UnitIndoor UnitIndoor Unit Indoor Unit

A B

A BA B

Individual

Simultaneous

(Thermo ON / OFF individually)

Individual

Wired Controller

Indoor Unit Indoor Unit

A B

Outdoor Unit

A B

Wired

Controller

Wired

Controller

Outdoor Unit

Indoor Unit

A B

The communication cables for the wired controller is necessary.

Indoor Unit

A B

Wired Controller

P00792Q-rev.2

< Caution for Electrical Wiring >

● Do not connect the power supply wiring and the communication cable into one terminal.

● The manual switchbox is required when communication cable is required.

Indoor Unit

Switchbox

Indoor Unit Indoor Unit Indoor Unit

Indoor UnitIndoor Unit

F C

RL1SL2Mp

P00792Q-rev.2

8.4 Wiring Connection

(1) Remove the connecting hole cover of the electrical box and install the rubber bush (Accessory) to the

connecting hole for communication cable.

(2) Pass the communication cable and the wired controller cable through the connecting hole for

communication cable. Connect the communication cable to the terminals 1, 2 of TB2 inside the electrical box. Connect the wired controller cable to the terminals A, B of TB2 inside the electrical box.

(3) Pass the power supply wiring and the ground wiring through the connecting hole for power supply

wiring. Connect the power supply wiring to the terminals L1, L2 of TB1 inside the electrical box. Connect the ground wiring to the ground terminal inside the electrical box. (When connecting the power supply wiring and the ground wiring outside of the unit, run through the conduit tube.)

(4) Tightly clamp the power supply wiring, the ground wiring, the wired controller cable and the

communication cable utilizing the cable band.

Wired Controller Cable

Power Supply Wiring

Ground Wiring

Communication Cable

Cable Band

PVC

Tube (Accessory)

Wired Controller Cable

Power Supply Wiring

Ground Wiring

Communication Cable

Cable Band

PVC Tube (Accessory)

(H,Y,C)IDM006 - 018B21S (H,Y,C)IDM024 - 048B21S

TB1

TB2

View from A

7/8 inch (22.2mm) Conduit Hole

Connecting Hole for Communication Cables and Wired Controller Cables

Connecting Hole for Power Supply Wiring

Air Inlet

ir Outlet

Electrical Box Cover

Connecting Hole

Connecting Hole Cover (After install, unnecessary)

Remove the fixing screw.

Rubber Bush (Accessory)

•

Insert the communication cables and wired controller

cable into the PVC tube “VW-1 600V” (Accessory) to separate them from the power supply wirings in the indoor unit.

•

Fix the both ends of the PVC tube by cable clamp

(Accessory).

•

If shielded cable is used, terminate at the ground

terminal.

NOTE

P00792Q-rev.2

(4) Capacity Code Setting (DSW3)

No setting is required, due to setting before shipment. This switch is utilized for setting the capacity code which corresponds to the capacity of the indoor unit.

1234

OFF

Setting Position

0806 12

Indoor Unit Capacity

(kBtu/h)

Indoor Unit Capacity

(kBtu/h)

15 18

Setting Position

24 30 36 48

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

1 2

3 4 5 6

OFF

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

(5) Unit Model Code Setting (DSW4)

No setting is required. It is for setting the model code of the indoor unit.

8.5 DIP Switches Settings

(1) Turn OFF the power supply to both indoor and outdoor units before adjusting DIP switch settings.

Otherwise, the setting will be invalidated and not take effect.

(2) Positions of DIP switches are shown below.

8 7

123456

1234

123456

123

SW1

DSW3

RSW1

RSW2

DSW6

DSW5

DSW9

DSW4DSW7

DSW8

(3) Unit No. Setting

Setting is not required. Indoor unit numbers are set by the auto-address function. If an indoor unit number setting is required, set the unit number of all indoor units respectively and sequentially by following setting position. It is recommended that you assign a number to each indoor unit from “1”. A maximum of 64 indoor units per refrigerant cycle can be connected to an H-LINK ll System. Though the available numbers range from zero to 63, the applicable number for the 64th indoor unit in theory supplants the number "zero". For the centralized control, this setting is required.

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

DSW6 (Tens Digit)

Unit No. Setting

RSW1 (Units Digit)

Setting Position

Set by inserting slotted screwdriver into the groove.

Ex.) Set at No.16 Unit

DSW6

RSW1

Set No.1 Pin at ON side

Set at "6"

Before shipment, DSW6 and RSW1 are set at "0".

For the units supporting H-LINK II, the unit No. can be set for Max. 64 indoor units (No.0~63).

P00792Q-rev.2

(7) Fuse Recovery (DSW7)

* Factory Settings

* In the case of applying high voltage to terminals 1 and 2 of TB2,

the 0.5A fuse on the PCB is cut. In such a case, rst reconnect the

wirings correctly to TB2, and then set the number one pin to ON.

(8) Function Setting (DSW8)

No setting is required, due to setting before shipment.

(9) Optional Function Setting (DSW9)

No setting is required. Setting positions before shipment are all OFF.

OFF

Turn OFF all power to the indoor and outdoor units prior to adjusting DIP switch settings. Otherwise, the setting will be invalidated and not take effect.

NOTES:

● The “■” mark indicates setting for DIP switches. The two illustrations immediately above show settings in

the OFF position.

● When the unit number and the refrigerant cycle are set, record the unit number and refrigerant cycle to

facilitate service and maintenance thereafter.

NOTICE

8.6 External Static Pressure Setting

Static pressure setting on the wired controller ("C5").

Refer to the “Installation and Maintenance Manual” for the wired controller for details.

Static Pressure Wired Controller Set

0.32 in.W.G. (80 Pa) C5 01

0.20 in.W.G. (50 Pa) C5 00

0.14 in.W.G. (35 Pa) C5 02

(6) Refrigerant Cycle No. Setting (RSW2 & DSW5)

This setting is required. The unit arrives with all settings in the OFF position.

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

DSW5 (Tens Digit)

Refrigerant Cycle No. Setting

RSW2 (Units Digit)

Setting Position

Set by inserting slotted screwdriver into the groove.

Ex.) Set at No.5 Cycle

DSW5

RSW2

Set All Pins OFF

Set at "5"

Before shipment, DSW5 and RSW2 are set at "0".

For the units supporting H-LINK II, the ref. cycle No. can be set for Max. 64 cycles. (No. 0~63)

P00792Q-rev.2

8.7 Function Selection by Wired Controller

Each function can be selected with the wired controller. Refer to the “Installation and Maintenance Manual” for the wired controller and the “Engineering Manual” for details.

< Circulator Function at Heating Thermo-OFF >

This function maintains fan operation by the set airow volume at the heating Thermo-OFF. It improves temperature distribution when the unit is mounted on a high ceiling.

P00792Q-rev.2

9. TestRun

Test Run Screen

9.1 Before Test Run

Verify that there are no problems with the installation, and do not perform Test Run until all the following conditions have been resolved.

Refer to the "Installation and Maintenance Manual" for the outdoor unit for details on Test Run operations

from the outdoor unit. Verify that refrigerant piping and the communication cable are connected to the same refrigerant cycle system. If not, it will cause an abnormal operation and damage to instrumentation.

(1) Verify that electrical resistance is more than one megaohm, by measuring the resistance between

ground and the terminal the terminus for electrical components. If the electrical resistance is less than

one megaohm, do NOT operate the system until the electrical current outow to ground is detected and

repaired. Do not introduce any high voltage to the terminals of the communication cables (TB2 [A, B, 1 and 2]).

(2) Verify that each wire is connected correctly at the correct phase for the power supply. If it is incorrectly

connected, the unit will not operate and the wired controller will display the alarm code “05”. In this

case, check the phase for the primary power supply according to the “Attention” label afxed to the back

side of the service cover. Then, with the power supply turned OFF at the power supply, remake the necessary connections.

(3) Check to ensure that the main power supply has been turned ON for more than 12 hours, to warm up

the compressor oil by the crankcase heater.

(4) Verify that all DIP Switch settings are correct. Refer to Section 8.6 “DIP Switch Settings”.

9.2 Test Run

After all installation work is completed, Test Run should be performed.

(1) Check to ensure that stop valves (gas and liquid) for the outdoor unit are fully opened.

(2) Whenever indoor units are connected to the VRF system, perform the Test Run for the indoor units

one by one sequentially and then check the refrigerant piping system and the electrical wiring system for conformity. (If these multiple indoor units are operated simultaneously, system conformity cannot be

veried.)

(3) Perform the Test Run in accordance with the following procedure. Ensure that the Test Run is carried

out without any problem. The following procedure shows a case where a wired controller is utilized.

If other controllers are activated instead, refer to the "Installation and Maintenance Manual" for those

other controllers.

NOTE:

The outdoor unit may not be operated depending on the indoor and outdoor temperature conditions.

Refer to the "Installation and Maintenance Manual" for outdoor units for details.

(a) Press and hold “Menu” and “Back/Help” simultaneously for at least 3 seconds.

The Test Run menu will be displayed.

● The Test Run menu will be displayed.

Back

Adj.Sel. ON Rtrn

Test Run Setting: 2 units

MODE

SPEED

AUTO

COOL

NOTE When the “00 unit” is displayed, the auto-address function may be working. Cancel “TestRun” mode and reset.

P00792Q-rev.2

● The total number of connected indoor units is indicated on the LCD (Liquid Crystal Display). In

the case of a twin combination (set of two indoor units), the total number of the connected indoor units is displayed as “2units”, and where there is a triple combination (set of three indoor units), the total number of the connected indoor units is displayed as “3units”.

● If the number indicated is not equal to the actual number of connected indoor units, the auto-

address function is not performing correctly due to incorrect wiring or electrical interference. Turn OFF the power supply, and resolve the wiring issue after verifying the following items; (Do not repeat turning ON and OFF within a 10 second timespan.)

◦ The power supply to the indoor unit is not turned ON or there is an incorrect wiring issue. ◦ Incorrect connection of the interconnecting cable between indoor units or a poorly connected

controller cable.

◦ Incorrect setting of the rotary switch and DIP switch for the indoor unit printed circuit board

(PCB). (The setting is overlapped.)

● Press “

On/Off” to start the Test Run.

● Press “

” and set each item.

(b) Press “

On/Off”. The RUN indicator turns ON and the operation starts. At this time, a two-hour OFF timer will be set automatically.

protection devices are valid.

(d) For VRF System

According to the label; “Checking Method by 7-Segment Display” afxed to the inside of the front

cover of the outdoor unit, check temperature, pressure, and operation frequency, and interconnected indoor unit numbers by 7-Segment displays.

(e) To complete Test Run, press “

On/Off” again or wait for the set Test Run time to pass. When changing the Test Run time, press “ ” or “ ” to select “TESTTIME”. Then, set the test run time (30 to 600 minutes) by pressing “ ” or “ ”.

Adj.Sel. OFF

Test Run: 2 units

MODE

SPEED

AUTO

COOL

Test Time 120min

Inverter 60Hz

● The RUN indicator on the wired controller for the indoor unit will ash orange (0.5 second ON/ 0.5 second OFF), indicative of a fault or error having been generated with activation of protection devices during the Test Run phase. Alarm code, unit model code, and the number of interconnected indoor units will be displayed on the LCD as shown below. If the RUN indicator on the wired controller

ashes for two seconds ON and two seconds OFF, the source of the problem could be a failure in the

communication cable between the indoor unit and the wired controller (a loose or severed connection). In this case, verify Section 9.3 “Alarm Code” and perform the appropriate troubleshooting measures. Consult with an authorized service engineer if the problem cannot be resolved at your end.

< Unit Model Code >

The relationship between the unit model code and the unit model is shown in the table below.

Indication Unit Model

F VRF System

E Except Above Models

Sel. OP MODE

I.U. :

RCI-3.0FSN3

MODEL : F .02

Alarm Code:

O.U. :

RAS-3HVRNM2

01-02

AlarmRst

Address

Entr

IDU :

******

ODU :

******

Chek

Refrigerant Cycle No. of Indoor Unit Having Tr

ouble

Indoor Unit No. of Indoor Unit Having Trouble

MODEL : F . 02

Alarm Code:

Alarm Code No.

Total No. of Indoor Units in the

Same Refrigerant Cycle as the Indoor Unit Having Trouble

01 - 02

Unit Model Code

P00792Q-rev.2

9.3 Alarm Code

● When the RUN indicator ashes every four seconds, there is a communication failure between the indoor

unit and the wired controller (loose connector, disconnected or incorrect wiring, or a severed connection).

● The indication of the alarm code “EE” means serious abnormality to burn out the compressor.

Refer to the "Installation and Maintenance Manual" for the indoor/outdoor unit connections.

Alarm (Troubleshooting) Code Table

Code

No.

Category Nature of Problem Likely Cause

01 Indoor Unit

Activation of a protection device (Float switch)

Activation of the oat switch; (High water level present in

the drain pan.) A problem exists in the piping.

02 Outdoor Unit

Activation of protection device; (Except for Alarm Code: 41, 42)

High Pressure Cut; (R410A: 601 psi (4.15MPa)), fan motor lockup during the outdoor unit cooling operation.

03 Communication

Communication failure between indoor and outdoor units

Incorrect wiring, loose terminals, disconnected wiring or a blown fuse.

04-09 Problem with the outdoor unit; (Refer to the "Installation and Maintenance Manual" for outdoor units.)

Sensor on

Indoor Unit

Inlet Air Thermistor failure

Loosely connected, disconnected, or a severed connection.

12 Outlet Air Thermistor failure

13 Freeze Protection Thermistor failure

14 Gas Piping Thermistor failure

19 Fan Motor Problem with Indoor Fan

Fan motor lockup, fan motor protection control device for indoor unit activated.

20-29 Problem with the outdoor unit; (Refer to the "Installation and Maintenance Manual" for outdoor units.)

System

Incorrect capacity setting for indoor and outdoor units.

Incorrect capacity code setting for combination, excessive

or insufcient total indoor unit capacity code.

Incorrect setting of other indoor unit number

Problem with a different Indoor Unit in the same refrigerant cycle; (Failure at the power supply, defective PCB).

35 Incorrect setting of indoor Indoor unit number duplicated in same refrigerant group.

36 Incorrect indoor unit combination

Indoor unit is designed for other refrigerant; (R22 or R407C).

38-59 Problem with the outdoor unit; (Refer to the "Installation and Maintenance Manual" for the outdoor unit.)

System

Incorrect setting for unit capacity Incorrect setting for unit capacity

Incorrect setting of unit and refrigerant cycle number

Unit number or refrigerant cycle > 64

Incorrect setting of indoor unit number for H-LINK type

Interconnected indoor units are not supporting H-LINK II > 17

EE Compressor Compressor protection alarm

This alarm code displays when the alarms such as damage to the compressor occur three times within a six hour period.

Refrigerant Leak Check Conduct a periodic refrigerant leak check to maintain product performance and secure storage of refrigerant

(Fluorocarbons). After completing installation, record the following results into this manual:

1. Results of a test for air-tight integrity

2. Total refrigerant charge volume dispensed (including a trim charge added following the installation)

3. Result of the refrigerant leak check

Then hand it over to users and ask them to retain for reference. All periodic service and maintenance procedures must be conducted only by authorized and trained personnel.

All the installation work of the air conditioning is completed. Handover this information to the building owner and request to maintain all the equipment manuals and warranty.

Do NOT operate the air conditioning just to run checks on electrical wiring until preparations for the Test Run phase is completed.

NOTICE

P00792Q-rev.2

Code No. LIT-12012018

Revised January 2018

Johnson Controls HIDM006B21S, HIDM008B21S, HIDM012B21S, HIDM015B21S, HIDM018B21S Installation And Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual