Johnson Controls YIFE006B21S, CIFE008B21S, YIFE012B21S, HIFE012B21S, CIFE012B21S Installation And Maintenance Manual

Installation

and

Maintenance

Manual

INVERTER-DRIVEN

MULTI-SPLIT SYSTEM

HEAT PUMP

AIR CONDITIONERS

Type Model

(H,Y,C)IFE006B21S

Floor Exposed

Floor Concealed

(H,Y,C)IFE008B21S
(H,Y,C)IFE012B21S
(H,Y,C)IFE015B21S
(H,Y,C)IFC006B21S
(H,Y,C)IFC008B21S
(H,Y,C)IFC012B21S
(H,Y,C)IFC015B21S

IMPORTANT:

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

PMGB0374

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.

Important Notice

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

● Johnson Controls 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.

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

● 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, Dangers, Cautions, and 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.

Temperature

Maximum Minimum

Cooling
Operation

Heating
Operation

DB: Dry Bulb, WB: Wet Bulb

* The temperature may change depending on the outdoor unit.

Indoor 89

Outdoor 118

Indoor 80

Outdoor 59

o

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

o

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

o

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

o

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

● 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.

PMGB0374

i

TABLE OF CONTENTS

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

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

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

3.1 Combinations of Outdoor Units and Indoor Units ................................................................................... 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 .............................................................................................................................................9

6. Refrigerant Piping Work ................................................................................................................................ 11

6.1 Piping Materials .................................................................................................................................... 11

6.2 Piping Connection ................................................................................................................................12

7. Condensate Piping .......................................................................................................................................14

8. Electrical Wiring ............................................................................................................................................16

8.1 General Check .....................................................................................................................................16

8.2 Electrical Wiring Capacity ..................................................................................................................... 17

8.2.1 Field Minimum Wire Sizes for Power Supply .............................................................................. 17

8.2.2 Details of Electrical Wiring Connection .......................................................................................17

8.3 Position of Electrical Wiring Connection ............................................................................................... 18

8.4 Wiring Connections ..............................................................................................................................22

8.5 DIP Switch Settings ..............................................................................................................................23

8.6 Function Selection by Wired Controller ................................................................................................ 25

8.7 Setback Operation ................................................................................................................................ 27

9. Test Run ........................................................................................................................................................28

9.1 Before Test Run ...................................................................................................................................28

9.2 Test Run ...............................................................................................................................................28

9.3 Alarm Code ..........................................................................................................................................30

ii

PMGB0374

1. Introduction

Read following sections carefully before installing this product.

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

Forward this "Installation and Maintenance Manual", 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)

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

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

● 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. Suspend pipes at certain points and reinforce against
earthquakes so that they will not be damaged by an external force. Check local codes and regulations.

● 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 wet 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.

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.

PMGB0374

1

● 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 a 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 system 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 condensate 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 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. Otherwise, the receiver part of the unit may have difculty receiving operation

commands.

● If the wired controller is installed in a location where electromagnetic radiation is generated, make sure
that the wired controller is shielded and cables are sleeved inside conduit tubing.

● If there is a source of electrical interference near the power source, install noise suppression

equipment (lter).

● 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 condensate pipe. If you do, you may

have drain water owing back which may cause leaks.

● Be sure the condensate 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.

2

PMGB0374

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.

▫ 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 wind bafe.

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

snow protection hood.

● 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 condensate 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 condensate pipe is installed incorrectly, water leakage and damage to the

ceiling, oor, furniture, or other possessions may result. If the condensate pipe becomes clogged,

water may drip from the indoor unit. Do not install the indoor unit where such dripping can cause
moisture damage such as 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.

PMGB0374

3

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. The installation should meet
the requirements in ASHRAE Standards 15 and 34. If refrigerant gas has leaked during the installation
work, ventilate the room immediately.

● Check the design pressure for this product is 601 psi (4.15MPa). The pressure of the refrigerant
R410A is 1.4 times higher than that of the refrigerant R22. Therefore, the refrigerant piping for

R410A shall be thicker than that for R22. Make sure to use the specied refrigerant piping. If not, the

refrigerant piping may rupture due to an excessive refrigerant pressure. Besides, pay attention to
the piping thickness when using copper refrigerant piping. The thickness of copper refrigerant piping
differs depending on its material.

● The refrigerant R410A is adopted. The refrigerant oil tends to be affected by foreign matters such

as moisture, oxide lm, (or fat). Perform the installation work with care to prevent moisture, dust, or

different refrigerant from entering the refrigerant cycle. Foreign matter can be introduced into the cycle
from such parts as expansion valve and the operation may be unavailable.

● To avoid the possibility of different refrigerant or refrigerant oil being introduced into the cycle, the
sizes of the charging connections have been changed from R407C type and R22 type. It is necessary
to prepare the following tools listed in Section 3 before performing the installation work. Use refrigerant
pipes and joints which are approved for use with R410A.

● 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 (uorocarbon) 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 system will be 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, or disposing of the unit, dismantle the refrigerant piping after the
compressor stops.

● When pipes are removed from under the piping cover, after the insulation work is completed, cover the

gap between the piping cover and pipes using a packing (eld-supplied). If the gap is not covered, the

unit may be damaged if snow, rain water or small animals enter the unit.

● Do not apply an excessive force to the spindle valve at the end of opening. Otherwise, the spindle

valve ies out due to refrigerant pressure. At the test run, fully open the gas and liquid valves.

Otherwise, these devices will be damaged. (It is closed before shipment.)

● If the arrangement for outdoor units is incorrect, it may cause owback of the refrigerant and result in
failure of the outdoor unit.

● The refrigerant system may be damaged if the slope of the piping connection kit exceeds +15

o

.

4

PMGB0374

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.

● Perform all electrical work in strict accordance with this installation and maintenance manual and all
relevant regulatory standards.

● Do not open the service cover or access panel to indoor or outdoor units without turning OFF the main
power supply. Before servicing, open and tag all disconnect switches. Never assume electrical power
is disconnected. Check with a meter and equipment.

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

● Use specied cables between units.

● Do not run the relay wiring for the motion sensor and power supply wiring in parallel. Electromagnetic
Interference (EMI) may cause malfunction of the sensor.

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

2

), 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.

● The polarity of the input terminals is important, so be sure to match the polarity when using contacts
that have polarity.

● Before installing the controller or remote devices, ensure the indoor and outdoor unit operation has

been stopped. Further, be sure to wait at least ve minutes before turning OFF the main power switch

to the indoor or outdoor units. Otherwise, water leakage or electrical breakdown may result.

● Clamp electrical wires securely with a cable band 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.

● This equipment can be installed with a Ground Fault Circuit Breaker (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 with local, state and NEC codes and
requirements. The equipment installer is responsible for understanding and abiding by applicable
codes and requirements.

PMGB0374

5

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

NOTICE

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

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

result in leakage and damage to property.

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

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

● Do not apply an excessive force to the condensate 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 condensate 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 condensate pan before the onset of winter to drain away all accumulated moisture in the pan.

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

during slowdown or stoppage. As a result, moisture in the condensate pan evaporates where it can affect
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 external equipment.

● When the power supply wiring for the external equipment and the packaged air conditioner are located
close to each other.

Regarding that mentioned above, surge voltage may be inducted into the power supply wiring for the crated

unit 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.

6

PMGB0374

3. Before Installation

NOTICE



3.1 Combinations of Outdoor Units and Indoor Units

The combination capacity of the 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 condensate 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 condensate pan. Do not handle the unit by grabbing the polystyrene pan and other air

outlets as they are fragile and will sustain damage.
The indoor unit handle is made from foam polystyrene and is susceptible to breakage if any excessive

•

force is applied as a result of mishandling of the unit during installation.

3.3 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.

Qty.

Accessory

(H,Y,C)IFE006-

015B21S

(H,Y,C)IFC006-

015B21S

Purpose

Adjustment Bolt
for Installation

PVC Tube

Cable Band 15 5

Logo Label

4 4 For Unit Adjusting the Flat Level of the Unit

6 2

For Separating Communication Cables and
Wired Controller Cables from Power Supply
Wirings; 7/16 inch ID (11mm ID)

1 - Logo Label for HITACHI Brand

1 - Logo Label for YORK Brand

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

3.4 Necessary Tools and Instrument List for Installation

PMGB0374

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 Copper Tube Cutter 18 Hoist (for Indoor Unit)

9 Brazing Kit 19 Ammeter

10 Hexagonal Wrench 20 Voltage Meter

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

7

4. Installation Location

Unit: Inch (mm)

9-7/16 (240)

9-7/16 (240)

Access Panel

Serv
Access Panel

(1) Install the indoor unit, allowing for proper clearance for operation and maintenance access, as shown

below.

Wall

For Floor Exposed Model

More Than
11-13/16 (300)

More Than
11-13/16 (300)

Wall *

24-13/16

Wall

For Floor Concealed Model

Upward Air Outlet with Short Flexible Duct (Field-Supplied)

Ceiling

Short Flexible
Duct (Field-Supplied)

(630)

Service Space for
Electrical Box

Front Air Outlet

Service Space for
Electrical Box

More Than
9-7/16 (240)

More Than

More Than
9-7/16 (240)

More Than

Wall

(640)

25-3/16

Piping Space

Ceiling

24-7/16

Piping Space

(620)

Service Access Panel

Provide a service access door or panel as shown below.

[ Space Around Indoor Unit ] inch (mm)

Floor Exposed Floor Concealed

A B A B

58-1/4

24-13/16

(630)

(1479)

24-7/16

(620)

68-1/16

(1729)

53-1/2
(1359)

63-3/8
(1609)

ice

Floor

Unit

(Inside)

B

A

Service

Unit Type

006

008

012

015

(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, destroy the plastic parts of the indoor unit.

(6) Pay attention to the following when the indoor unit is installed in a hospital or other facility where there

are electromagnetic 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.

(c) Prepare a steel box and install the wired controller inside it. Prepare a steel conduit tube and wire

the 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 electromagnetic interference (EMI).

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

alkaline environment.

8

PMGB0374

5. Installation Work

(220)

(220)

Side Cover

Securing Bolt

Securing Bolt

Adjustment Bolt for Installation

Securing screw

(1) Make sure to secure the position of the unit as shown below.

Securing onto Floor Using Wood Screws (2-M8)
(View from Top Side)

(103)

4-1/16

2 - 1/2 x 11/16

(12.5 x 18)

B

A

C

8-11/16

Securing onto Floor Using Wood Screws (4-M5)
(View from Top Side)

(60)

2-3/8

4 - φ1/4

(φ7)

B

A

C

(85)

3-3/8

8-11/16

Securing onto Wall
(View from Front Side)

4 - φ9/16

(φ14)

D

A

G

(315)

12-3/8

F

E

Unit Type A B C D E F G

Floor Exposed

Floor Concealed

006
008

012

015

006
008

012

015

41-1/8
(1045)

46-1/16

(1170)
55-7/8

(1420)

34

(863)

38-7/8

(988)

48-9/16

(1234)

29-11/16

(754)

34-5/8

(879)

44-7/16

(1129)

29-11/16

(754)

34-5/8

(879)

44-7/16

(1129)

8-9/16

(217)

8-9/16

(217)

7/16

(11)

2-5/8

(66)

2-5/8

(66)

7/16

(11)

28-13/16

(732)

33-3/4

(857)

43-9/16

(1107)

28-13/16

(732)

33-3/4

(857)

43-9/16

(1107)

9

(228)

9

(228)

9

(228)

3-1/16

(77)

3-1/16

(77)

2-1/16

(53)

5-1/2
(140)

5-1/2
(140)

5-1/2
(140)

5-7/16

(138)

5-7/16

(138)
5-1/2

(139)

24-13/16

24-13/16

24-13/16

(2) In an instance of the oor exposed type unit, remove the front cover and side cover of the unit.

Front Cover

inch (mm)

(630)

(630)

(630)

24-7/16

(620)

24-7/16

(620)

24-7/16

(620)

PMGB0374

(Accessories)

9

NOTICE

Air Outlet Grille Absorbent Plate for Water

Polyurethane Foam for Thermal

Air Outlet Duct (Field-Supplied)

Unit

Air Outlet Flange

Secure CIW01 using two screws
(Factory-Supplied)

(3) Adjust the at level of the unit by adjusting bolts for installation which are attached in the unit. Make the

condensate pipe side lower than the opposite side for smooth drainage.

(4) Secure the base plate and back plate of the unit with eld-supplied bolts and screws. When attaching

the adjusting bolts for installation, remove the electrical wiring box.

(5) Install the eld-supplied air outlet grille of the oor concealed type unit as shown in the following gure.

If installed in a comparatively high humid place, condensation may occur. Therefore, attach a plate
which can absorb water around the grille.

Insulation (Field-Supplied)

Floor Concealed

Provide a eld-supplied service access cover which is secured by screws so that the fan wheel is not directly
touched (only oor concealed model).

The air outlet grille of the oor concealed model unit cannot be used in a highly humid place such as a

kitchen, because condensation may occur on the grille surface.

Air Outlet Direction Change (Floor Concealed Model)

The air outlet direction of the unit can be changed from upward to front by following the procedures below.

(1) Remove the securing screws of the air outlet ange. Then, remove the air outlet ange.

(2) Turn the air outlet on itself until it is opposite its initial position.

(3) Tilt the air outlet so that the nozzle is facing forwards.

(4) Secure the air outlet ange.

1

2

2

3

4

Optional Location for CIW01 (Floor Exposed Type)

In an instance of a oor exposed model unit, it is possible to install the CIW01 under the plastic cover as
shown in the following gure.

10

RUN/STOP

TEMP

PMGB0374

6. Refrigerant Piping Work

Use the specied non-ammable refrigerant (HFC R410A) for the outdoor unit refrigerant system. 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.

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

6.1 Piping Materials

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

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

(2) Select the piping size from Section 6.2 "Piping Connection".

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

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

(5) The refrigerant oil used in combinations 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 system. Otherwise,
impurities may adhere to the expansion valve and it may prevent proper operation.

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

disks that 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 any residue before making pipe connections.

When Placing the Pipe
Through a Hole in the Wall

Correct

HoleHole

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

Do not lay the pipe
directly on the ground.

CorrectIncorrect Incorrect

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

In Case of Rain

Correct Incorrect

Rain water
can come in.

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

Rubber Band

PMGB0374

11

6.2 Piping Connection

0.016 ~ 0.031R

Piping Connection of Floor Exposed Type

(207)

8-11/16 (220)

Piping Connection of Floor Concealed Type

3

8-11/16

4-13/16

3/8 (10)

(1) Position of piping connection is shown below.

Unit: inch (mm)

3/8 (9)

6-7/16
(163)

8-1/8

2-13/16 (72)

2-9/16 (65)

2

6-1/8 (156)

1

3

5-15/16 (151)

7-3/16 (182)

3/8 (10)

2

1

3-3/8 (85)

3/4 (19)

(122)

1-9/16

5-1/4 (133)

2-1/16 (52)

24-13/16 (630)

20-13/16 (529)

15-1/4 (388)

10-1/4 (260)

2-3/8 (60)

4-1/16 (103)

5-1/4 (134)

(220)

2 (51)

4-13/16

(122)

5-1/4 (133)

2-1/16 (52)

(40)

Piping Size

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

5-1/4 (134)

3

Condensate Piping

1

Gas Piping

2-1/16 (52)
2-3/8 (61)

2

Liquid Piping

1/2 (12.7) 1/4 (6.35) 3/4 (18.5) OD

o

o

+

2

90

45

o

+

o

2

φA

Diameter

(d)

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)

φd

2-3/8 (60)3-3/8 (85)

4-1/16 (103)

inch (mm)

15-1/4 (388)

10-1/4 (260)

inch (mm)

+0

A

-0.02 (-0.4)

24-7/16 (620)

20-13/16 (529)

12

PMGB0374

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

Securely fasten cable bands and the vinyl tape

the indoor unit and the insulation.

A

pply a small amount

of oil to the flare face.

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

opening.

(5) Before tightening the are nut, apply a small amount of oil (eld-supplied) to the are face. (Do not

apply any oil to the backside of the are or the threads.) Tighten the liquid pipe are nut to the specied
torque while using a backup wrench to prevent damage to the unit. Next, tighten the gas pipe are nut
following the same procedures. Ensure that the are connections are leak free upon completion of the

work.

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)

Do not apply
the refrigerant
oil to the
outside of the

aring part.

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)

(6) Wherever buried piping exists onsite, 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.

Appropriate measures should be taken during installation to guard against possible damage or injury
that might occur in an earthquake. Check local codes and regulations and refer to the Safety Section in
this manual for information.

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

(9) Prevent the pipes from contacting weak portions such as walls or ceilings. (Otherwise, abnormal sound

may be heard due to vibration of the piping.)

(10) Leak test all piping and connections. The 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 to 3/8 inch
(5 to10mm) thickness) around the accessory insulation of the refrigerant pipe as a preventive measure.

(12) Insulate each are connection ensuring no gaps with accessory insulations to prevent condensation.

Then insulate each refrigerant pipe as well.

● Do not apply excessive force to the are nut when tightening. Use the specied tightening torque.

● Make sure that the refrigerant leak test has been performed. Refrigerant (uorocarbon) for this unit
is non-ammable, non-toxic and odorless. However if the refrigerant should leak and contact with
re, toxic gas will be generated. Also because the uorocarbon is heavier than air, it settles near
the oor, which could cause suffocation.

PMGB0374

in order to prevent the accumulation of moisture.

Fasten with cable bands
at three locations along the pipe
(Accessory).

Unit
Side

Insulation Material
(Factory-Supplied)

Check for any clearance between

Secure the vinyl tape position at the vertical part
(Insulation for Refrigerant Pipe (Accessory)).

Refrigerant Pipe
(Field-Supplied)

Insulation for
Refrigerant Pipe
(Field-Supplied)

13

7. Condensate Piping

NOTICE

Incorrect: Upward Slope

Incorrect

Condensate Piping

separating from other pipes.

Correct

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

(1) Figure 7.1 shows condensate pipe connections.

(2) Prepare polyvinyl chloride (PVC) pipe with a 3/4 inch (18.5mm) outer diameter.

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

The condensate piping must be performed with a downward slope of 1/25 to 1/100.

(4) Insulate the condensate pipe after connecting the condensate hose.

Condensate Hose

Insulation (field-supplied)

Polyvinyl Chloride Tube (field-supplied)

Figure 7.1 Condensate Piping

● Do not create an upper-slope or rise for the condensate piping, since condensate water will ow back to

the unit and leakage to the room will occur when the unit operation is stopped.

Unit

Raised Part

● Do not connect the condensate pipe with sanitary or sewage piping or any other drainage piping.

● When the main condensate piping is connected with other indoor units, the connected position of each

indoor unit must be higher than the main piping. The pipe size of the main condensate pipe must be large
enough according to the unit size and number of units.

Connection

1/25 to 1/100 Down-Slope

Main Condensate Piping

This condensate pipe shall be

● Condensate piping will require insulating if the drain is installed in a location where condensation forming

on the outside of the condensate pipe may cause it to drop and cause damage. The insulation for the
condensate pipe must be selected to ensure vapor sealing and prevent condensation from forming.

● Do not tie or clamp the condensate pipe and refrigerant pipe together.

● Install drainage parts in accordance with national and local codes.

14

PMGB0374

NOTICE

To the Atmosphere

NOTE:
If the relative humidity of ambient air exceeds
80%, install an auxiliary condensate pan

(eld-supplied) beneath the indoor unit as

shown in Figure 7.2.

Auxiliary Condensate Pan
(Field-Supplied)

Figure 7.2 Auxiliary Condensate Pan

Checking Unit without Drain-up Mechanism

● Pour 61oz (1.8 liters) of water into the condensate pan.

● Check to ensure that the water ows smoothly and no water leakage occurs. When water cannot be

found at the end of the condensate piping, pour another approximately 61oz (1.8 liters) of water into the
condensate pan.

● Be aware of the thickness of the insulation when the left side piping is performed. If it is too thick, piping

cannot be installed in the unit.

Indoor Unit

PMGB0374

15

8. Electrical Wiring

● 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. Not doing so 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 cable bands and seal the connecting hole against 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 band inside the electrical box.

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.

16

PMGB0374

8.2 Electrical Wiring Capacity

Outdoor Unit
Power Supply

Indoor Unit
Power Supply

GFCI and main switch for outdoor unit.

Outdoor Unit
Power Supply

Indoor Unit
Power Supply

GFCI and main switch for outdoor unit.

8.2.1 Field Minimum Wire Sizes for Power Supply

This equipment can be installed with a 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.

Communication cabling should be a minimum of 18-Gauge, 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
cabling 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.

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

the 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) Apply power to the outdoor unit(s) at least 12 hours prior to operation of the system for preheating of

the compressor oil.

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 194

o

F (90oC).

8.2.2 Details of Electrical Wiring Connection

The electrical wiring capacity of the outdoor unit should be referenced 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 Table 8.1. Install a GFCI and main switch as shown in each of the
system diagrams below.

Heat Pump System Heat Recovery System

Outdoor
Unit

Main

GFCI

Switch

Indoor
Unit

GFCI

Main

Switchbox

Switch

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

Indoor
Unit

Indoor
Unit

GFCI

GFCI

Main
Switch

Main
Switch

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

Change-Over

Switchbox

Outdoor
Unit

Box

Indoor
Unit

Indoor
Unit

Indoor
Unit

PMGB0374

17

Table 8.1 Recommended Wiring Capacity and Size

NOTICE

12

Minimum Wire Thickness

[AWG (mm

Model

(H,Y,C)IFE006B21S

(H,Y,C)IFE008B21S 0.4

(H,Y,C)IFE012B21S 0.6

(H,Y,C)IFE015B21S 0.9

(H,Y,C)IFC006B21S 0.4

(H,Y,C)IFC008B21S 0.4

(H,Y,C)IFC012B21S 0.6

(H,Y,C)IFC015B21S 0.9

Power

Supply

1~,

208/230V

60Hz

Power

Supply

Wiring Size

(Main)

18

(0.82)

Ground

Wiring

Size

18

(0.82)

2

)]

Communication

Cable Size

18

(0.82)

GFCI Main Switch

Nominal

Current

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

Nominal

Sensitive

Current

15 30 15 15

Nominal

Current

Fuse

MCA

(Minimum

Circuit

Ampacity)

0.4

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 of GFCI shown in Table 8.1.

● Between indoor and outdoor units, use communication cabling that is a minimum of 18-Gauge,
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 cabling 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. Total cable length should not exceed
3281 ft (1000m).

● Select the wiring size, GFCI 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.

8.3 Position of Electrical Wiring Connection

The connection at the terminal block for the indoor unit is shown in the gure below. Check the arrangement

for the outdoor unit before performing any wiring. Tighten screws in the terminal block as indicated in the

torque specication table shown below.

Tightening Torque for Terminals

18

Screw Size Tightening Torque

TB1 M4

TB2 M3.5

0.7 - 1.0

(1.0 - 1.3

0.9

(1.2

ft·lbs
N·m)

ft·lbs
N·m)

Terminal Block for

Power Supply Wiring

TB1 (black)

S/L2R/L1

Mp/N

Terminal Block for

Communication Cable

TB2 (white)

AB

PMGB0374

A

Incorrect Wiring Reconnect wirings correctly.

PCB

Stranded Wire Single Wire

Connect it with

Connect it As

(C)

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

NOTICE

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

● Pay attention to the following when wires are connected at the terminal

Screw

block:

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

(B) Maintain the recommended distance between the electrical box

(B)

(A)

and the terminals to prevent a short circuit.

(C) Maintain the recommended distance between terminals.

(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 numbers 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 band inside the

electrical box.

NOTE:

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

connection, the M4 crimping terminal should be used.

Stranded Wire.

Shown Below.

When the single wire is used, fashion it into the shape
as shown at the 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.

(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. If this happens, 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.

C 208V/230V

5V

S

L1RL2

AB12

AC 208V/230V

5V

S

L1RL2

AB12

DSW7

ON
OFF

12

Set No.1 Pin
at ON side.

PMGB0374

19

NOTICE

(Thermo ON / OFF individually)

Controller

Controller

(10) Wired Controller Connection

● VRF Systems

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

Indoor Unit Indoor Unit

Outdoor Unit

A B

A B

Wired

Wired

(b) Single Wired Controller for Individual Operation Setting

Indoor Unit

A B

Communication cables
for the wired controller
are necessary.

Outdoor Unit

Indoor Unit

A B

Wired
Controller

(c) Wired Controller Connections between Different Refrigerant Systems

Outdoor Unit

Wired
Controller

A B

Individual

A BA B

Wired
Controller

Simultaneous

Indoor UnitIndoor UnitIndoor Unit Indoor Unit

A B

Outdoor Unit

Wired
Controller

Individual

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 settings by the centralized controller

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

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

20

PMGB0374

Caution for Electrical Wiring

Indoor Unit

Switchbox

Indoor UnitIndoor Unit

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

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

RL1SL2Mp

N

G

F

S

C

I

RL1SL2Mp

N

RL1SL2Mp

N

Indoor Unit Indoor Unit Indoor Unit

RL1SL2Mp

N

G

F

S

C

I

RL1SL2Mp

N

RL1SL2Mp

N

PMGB0374

21

8.4 Wiring Connections

Relay PCB

Ground Wiring Connection Screw

Terminal Blocks PCB

n

(Power Supply)

Electrical BoxOpening for Power Supply

Opening for Communication
Cable with Rubber Bushing

and Wired Controller Cable

The wiring connections for the indoor unit are shown in the gures below.

Connector for Fan Motor

Communication Cable

Wired Controller Cable

Power Supply Wiring

Cable Band

Locations of Wiring Connection Openings

● Floor Concealed Type● Floor Exposed Type

Transformer

Capacitor

Opening for Communicatio
Cable with Rubber Bushing

Communication Cable

Electrical Box

Conduit Tube
(Power Supply)

Opening for Power Supply

Conduit Tube

Communication Cable
and Wired Controller Cable

(a) Remove the electrical box cover.
(b) Connect the communication cable, the power supply wiring and the wiring for the wired controller to

each terminal block. Connect the ground wiring to the ground wiring connection screw.

(c) Attach the electrical box cover. Be careful not to pinch wires when attaching the electrical box.

NOTE

Insert the communication cable and wired controller cable

•

Terminal Block (White)

AB12

into the PVC tube “VW-1 600V” (accessory) to separate
from the power supply wiring for the indoor unit.
Secure both ends of the PVC tube using a cable band

•

(accessory).

If shielded cable is used, terminate at the ground terminal.

•

Wired
Controller Cable

Secure the PVC Tube using
Cable Band (accessory)

Communication Cable

PVC Tube “VW-1 600V”
(accessory)

Install and secure all electrical wiring correctly through the connecting openings to the terminal

blocks using the cable bands provided. Wiring should be spaced appropriately and rmly fastened
to guarantee against electrical short circuit, sparks, and re.

22

PMGB0374

ON

OFF

21

Unit No. Setting

8.5 DIP Switch 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.

(3) Unit No. Setting (RSW1 and DSW6)

Setting is not required.
Indoor unit numbers are set by the auto­address function. If an indoor unit number
setting is required, set the unit numbers of all
indoor units respectively and sequentially by
following setting positions. It is recommended
that you assign a number to each indoor unit
beginning with “1”. A maximum of 64 indoor
units per refrigerant system can be connected
to an H-LINK ll System. Though the available
numbers range from zero to 63, the applicable
number for the 64

th

indoor unit in theory
supplants the number "zero".
For the centralized control, this setting is
required.

DSW6 (Tens Digit)

ON

1 2 3 4 5 6

Factory settings for 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 to 63).

OFF

RSW1 (Units Digit)

Setting
Position

0

9

8

7

6

Set by inserting
slotted screwdriver
into the groove.

1

2
3

4

5

Ex.) Set at No.16 Unit

1 2 3 4 5 6

Set No.1 Pin at ON side

DSW6

RSW1

1

0

9

2

8

3

7

4

6

5

Set at "6"

ON

OFF

(4) Capacity Code Setting (DSW3)

No setting is required because of factory settings. This switch is utilized for setting the capacity code
which corresponds to the capacity of the indoor unit.

Indoor Unit Capacity

(MBH)

Setting Position

6

1 2 3 4

(5) Unit Model Code Setting (DSW4)

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

PMGB0374

81

ON

OFF

ON

1 2 3 4

OFF

ON

1 2 3 4

OFF

5

ON

1 2 3 4

OFF

1234

23

(6) Refrigerant System No. Setting

12

ON

OFF

12

ON

OFF

Refrigerant System No. Setting

NOTICE

ON

OFF

(RSW2 and DSW5)
This setting is required. The unit arrives with all
settings in the OFF position.

(7) Fuse Recover (DSW7)

* Factory Setting

* If applying high voltage to the 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 No.1 pin to ON.

DSW5 (Tens Digit)

ON

1 2 3 4 5 6

Factory settings for DSW5 and RSW2 are set at "0".

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

OFF

RSW2 (Units Digit)

Setting
Position

0

9

8

7

6

Set by inserting
slotted screwdriver
into the groove.

1

2

3

4

5

Ex.) Set at No.5 Cycle

DSW5

ON

RSW2

0

9

8

7

6

OFF

1

2

3

4

5

1 2 3 4 5 6

Set All Pins OFF

Set at "5"

(8) Optional (DSW8)

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

123

NOTES:

● The “■” mark indicates the setting for DIP switches. Figures show factory settings.

● When the unit number and the refrigerant system are set, record the unit number and refrigerant system

to facilitate future service and maintenance.

Turn OFF all power supply of the indoor units and the outdoor units before setting DIP switches.
Otherwise, the setting will be invalid and not take effect.

24

PMGB0374

8.6 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.

(1) Press and hold "Menu" and "Back/Help" simultaneously for at least 3

seconds during the normal mode (when unit is not operating). The test
run menu is displayed.

(2) Select “Function Selection” from the test run menu and press “OK”.

(3) Select the indoor unit by pressing “

” and press “OK”.
(This screen is NOT displayed when the number of indoor units
connected to the controller is 1 (one).
In this case, (4) is displayed.)

Press "All" to select all the indoor units connected to the wired

controller.

(4) Press “ ” and select the item to change.

Test Run Menu

Test Run

Function Selection

Thermistor Selection
Input/Output
Function 5

Function Selection

All

01-01

01-02

01-03

01-04

Function Selection:01-03

Item Setting

C2 - ­C3 00
C4 00

C5 00

C6 00

Adj. Entr RtrnSel.

OK

01

/

03

Back

OK

Entr RtrnSel.

Back

OK

Entr RtrnSel.

04

/

17

Back

(5) Press “

” and change the setting.

Function Selection:01-03

Item Setting

C2 - ­C3 00
C4 00

C5 01

C6 00

(6) Press “OK” to display the conrmation screen.

Function Selection:01-03

(7) Select “Yes” and press “OK”.

The test run menu is displayed after the setting is conrmed.
If “No” is pressed, the screen will return to (4).

(8) Press "Back/Help" on the test run menu to return to the normal mode.

Sel. Entr Rtrn

(Figure for Function Selection)

To set other units, press "Back/Help" at (4), (5) so that the screen will return to (3).
(If the number of indoor units connected to the controller is 1 (one), the screen will return to (1).)

Adj. Entr RtrnSel.

OK

Confirm function

selection setting?

Yes No

OK

04

/

17

Back

Back

PMGB0374

25

Optional Function

Cooling Setpoint+r2

(A)

e

Cooling

Function

Selection

Item

Automatic COOL/HEAT Operation b8 -

Dual Setpoint r1 -

Cooling/Heating

(A)

Changeover Temperature

Setback Temperature Compensation
(Setback is initiated when the card key is removed.)

r2

r3

Unit

o

o

(

o

o

(

00 01 02 03 04 05 06 07 08 09 10

Not

Available

Not

Available

F
C)

F
C)

2

(1.0)

4

(2.5)

Setting Condition (Underlined Part is Factory Setting)

Available

Available

3

(1.5)

(3.0)6 (3.5)7 (4.0)8 (4.5)9 (5.0)

3*

(2.0)4 (2.5)5 (3.0)1 (0.5)

5

10

(5.5)1 (0.5)2 (1.0)3 (1.5)

* Not displayed when fahrenheit (oF) is selected to display.

Cooling Setpoint

Indoor
Temperatur

Heating Setpoint

Heating Setpoint-r2

Heating

3*

(2.0)

26

PMGB0374

8.7 Setback Operation

No V
When the card key is inserted (i.e.
someone is in the room), then the
contact turns ON.

Indoor Unit

Controller

(1) Press and hold “Menu” and “Back/Help”on the wired controller simultaneously for at least three seconds

during the normal mode (unit stoppage).
The Test Run menu will be displayed.

(2) Select “Input/Output” from the Test Run menu and press “OK”.

(3) Select either "Input 1" or "Input 2" and change the setting to "09".

(4) Build a circuit such as shown below.

Card Key

oltage "a" Contact

TB1

1

2

3

CN3

PSC-5RA

Test Run Menu

Test Run

Function Selection
Thermistor Selection
Input/Output

01

/

03

Function 5

Back

OK

Entr RtrnSel.

Input/Output:01-03

Item Setting Connector

Input 1 00 CN3 1-2

Input 2 00 CN3 2-3
Output1 00 CN7 1-2
Output2 00 CN7 1-3
Output3 00 CN8 1-2

Adj. Entr RtrnSel.

OK

Back

CN3

1
2
3

1
2
3

(5) Temperature compensation for the setback function can be selected on the wired controller.

Refer to “Function Selection by Wired Controller” section for details.

PMGB0374

Wired

27

9. Test Run

9.1 Before Test Run

Verify that there are no problems with the installation, and do not perform the 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 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 the

ground and the terminal 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) Apply power to the outdoor unit(s) at least 12 hours prior to operation of the system for preheating of the

compressor oil.

(4) Verify that all DIP switch settings are correct. Refer to Section 8.5 “DIP Switch Settings”.

9.2 Test Run

After all installation work is completed, a 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 multiple indoor units are operated simultaneously, system conformity cannot be veried.)

(3) Perform the test run in accordance with the following procedures. Ensure that the test run is carried out

without any problems. The following procedures show an instance 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 operate 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 three seconds.

● The Test Run menu will be displayed.

Test Run Screen

Test Run Setting: 2 units

MODE

SPEED

Adj.Sel. ON Rtrn

COOL

AUTO

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

Back

28

PMGB0374

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

Refrigerant System No.
of Indoor Unit Having
Tr

Same Refrigerant System as the
Indoor Unit Having Trouble

Unit Model Code

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 “

● Press “

On/Off” to start the Test Run.

” 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.

(c) Though temperature recordings by the thermistors are invalid during the Test Run phase, the

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 the 7-Segment displays.

(e) To complete Test Run, press “

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

On/Off” again or wait for the

Test Run: 2 units

MODE

SPEED

COOL

AUTO

pressing “ ” or “ ”.

Test Time 120min

Inverter 60Hz

Adj.Sel. OFF

● 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. The 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 malfunction in the
communication cable between the indoor unit and the wired controller (a loose or severed connection).
In this case, verify using 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.

PMGB0374

01-02

Alarm Code:

22

MODEL : F .02

I.U. :

IDU :
ODU :

O.U. :

Sel. OP MODE

RCI-3.0FSN3

******

RAS-3HVRNM2

******

OK

Entr

Chek

AlarmRst

Address

Indoor Unit No. of Indoor Unit

ouble

01 - 02

Alarm Code:

MODEL : F . 02

22

Having Trouble

Alarm Code No.

Total No. of Indoor Units in the

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

29

9.3 Alarm Code

NOTICE

Alarm (Troubleshooting) Code Table

Code

No.

01 Indoor Unit

02 Outdoor Unit

03 Communication

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

11

12 Outlet Air Thermistor failure

13 Freeze Protection Thermistor failure

14 Gas Piping Thermistor failure

19 Fan Motor Problem with Indoor Fan

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

31

32

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

36 Incorrect indoor unit combination

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

b0

b1

b5

EE Compressor Compressor protection alarm

Category Nature of Problem Likely Cause

Sensor on

Indoor Unit

System

System

Activation of a protection device

(oat switch)

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

Communication failure between
indoor and outdoor units

Inlet Air Thermistor failure

Incorrect capacity setting for indoor
and outdoor units.

Incorrect setting of other indoor unit
number

Incorrect setting for unit capacity Incorrect setting for unit capacity
Incorrect setting of unit and

refrigerant system number
Incorrect setting of indoor unit

number for H-LINK type

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

the condensate pan.) A problem exists in the piping.
High Pressure Cut. R410A: 601 psi (4.15MPa), fan motor

lockup during the outdoor unit cooling operation.
Incorrect wiring, loose terminals, disconnected wiring or a

blown fuse.

Loosely connected, disconnected, or a severed
connection.

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

Incorrect capacity code setting for combination, excessive

or insufcient total indoor unit capacity code.

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

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

Unit number or refrigerant system > 64

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

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

● 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 there is a serious abnormality to burn out the compressor.

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

Do NOT operate the air conditioning just to run checks on electrical wiring until preparations for the test run
phase are completed.

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

Routine Preventive Maintenance

Perform routine preventative maintenance on the system to ensure high efciency performance and
containment of refrigerant over the life of the product. During installation, record the results of the following eld

procedures for future reference:

1) Pressure and leak testing of eld installed piping

2) Triple evacuation and nitrogen purge of eld installed piping

3) Total refrigerant quantity in the system including factory charge and trim charge volumes

This information should be included in the owner's nal documentation including operation and maintenance

(O&M) manuals for project close-out. All technical service and maintenance procedures must be performed by
trained and authorized personnel only.

30

PMGB0374

© 2018 Johnson Controls, Inc.

PMGB0374

Code No. LIT-12013111

Issued July 2018