Hitachi Eco Compact PC-ARC-A Instruction Manual

A12109620A
–
INSTALLATION
& MAINTENANCE MANUAL
–
Eco Compact
Wired Remote Controller
MODELS
PC-ARC-A
PC-ARC-M
PC-ARC-U
ORIGINAL INSTRUCTIONS

Important Notice
i
Important Notice
• Johnson Controls-Hitachi Air Conditioning pursues a policy of continuing improvement in design and performance in its
products. As such, Johnson Controls-Hitachi Air Conditioning reserves the right to make changes at any time without prior
notice.
•
Johnson Controls-Hitachi Air Conditioning 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 must 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-Hitachi Air Conditioning.
• If you have questions, please contact your distributor or dealer.
• This manual should be considered as a permanent part of the air conditioning equipment and should remain with the
controller.
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-Hitachi Air Conditioning. Performing any mechanical alterations on this product without the consent of
the manufacturer renders your warranty null and void.

Important Notice
ii
Table of Contents
Table of Contents
1. Safety Summary ............................................................................................................................................................... 1
2. Installation Work .............................................................................................................................................................. 6
3. Electrical Wiring.............................................................................................................................................................. 10
4. Test Run .......................................................................................................................................................................... 12
5. Function Selection ......................................................................................................................................................... 13
6. Input/Output Setting...................................................................................................................................................... 33
7. Main Remote Setting...................................................................................................................................................... 36
8. Operation Lock/Unlock Setting .................................................................................................................................... 38
9. NFC Setting .................................................................................................................................................................... 39
10. Adjusting Date/Time ........................................................................................................................................................ 41
11. Check Menu ...................................................................................................................................................................... 43

1. Safety Summary
1
1. Safety Summary
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).
For the operation of the product, please read and follow this safety summary strictly. Otherwise, improper operation may cause
injury or death.
Signal Words

1. Safety Summary 1. Safety Summary
2
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, including this controller, should be installed by personnel certied by Johnson Controls-Hitachi Air Conditioning.
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 an 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 appropriately correctly, injuries may occur because of a falling unit.
• Use appropriate Personal Protective Equipment (PPE), such as gloves, protective goggles, and electrical protection equipment
and tools suited for electrical operation purposes.
• When transporting, be careful when picking up, moving and mounting these units. Although the controller may be packed
using plastic straps, do not use them for transporting from one location to another.
Do not stand on or put any material on the controller.
• When installing the controller cabling to the units, 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,
wire around, or jump-out any safety device or switch.
• Use only Johnson Controls-Hitachi Air Conditioning recommended, provided as standardized, or replacement parts.
• Johnson Controls-Hitachi Air Conditioning 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-Hitachi Air Conditioning products are
prohibited as they…
○May create hazards that could result in death, serious injury or equipment damage;
○Will void product warranties;
○May invalidate product regulatory certications.
General Precautions

1. Safety Summary
3
• If the wired controller is installed in a location where electromagnetic energy 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).
• During the test run, check the unit’s operation temperature. If the unit is used in an environment where the temperature
exceeds the operation boundary, it may cause severe damage. Check the operation temperature boundary in the manual. If
there is no specied temperature, use the unit within the operation temperature boundary of 32°F to 104°F (0°C to 40°C).
• Perform properly electrical wiring work. The details of the electrical wiring connection are described in the "Electrical Wiring"
of corresponding Installation and Maintenance Manual.
• Read this installation and maintenance manual for proper electrical wiring work.
Take the following precautions to reduce the risk of property damage.
• Do not touch the main circuit board or electronic components in the controller or remote devices.
Make sure that dust and/or steam does not accumulate on the circuit board.
• 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. EMI may cause the unit to malfunction. The operation of the unit may also adversely aect
these same devices. Install the unit at least 10 . (approximately 3m) away from such devices.
• Locate the controller at a distance of at least 3 . (approximately 1m) from the electric lighting. Otherwise, the receiver part of
the controller may have diiculty receiving operation commands.

1. Safety Summary 1. Safety Summary
4
Installation Precautions
Take the following precautions to reduce the risk of electric shock, fire, or explosion
resulting in serious injury or death.
• If the remote sensors are not used with this controller, then do not install this controller…
○In a room where there is no thermostat.
○Where the unit is exposed to direct sunshine or direct light.
○Where the unit is in close proximity to a heat source.
○Where hot/cold air from the outdoors, or a dra from elsewhere (such as air vents, diusers, or grilles) can aect air circulation.
○In areas with poor air circulation and ventilation.
• Perform a test run using the controller 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.
After installation work for the system has been completed, explain the "Safety Precautions," use, and maintenance of the unit to
the customer according to the information in all manuals that accompanied the system. All manuals and warranty information
must be given to the user or left near the Indoor Unit.
Take the following precautions to reduce the risk of electric shock, fire, or explosion
resulting in serious injury or death:
• Only use electrical protection equipment and tools suited for this installation.
• Insulate the wired controller against moisture and temperature extremes.
• Use specied cables between units and the controller.
• Communication cabling must 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
Electrical Precautions

1. Safety Summary
5
termination of the cable shield is required as per Johnson Controls-Hitachi Air Conditioning guidelines. Plenum and riser
ratings for communication cables must be considered per application and local code requirements.
• The polarity of the input terminals is important, so be sure to match the polarity when using contacts that have polarity.
•
Highly dangerous electrical voltages may be 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 installing the controller or remote devices, ensure that the indoor and outdoor unit operation has been stopped.
Further, be sure to wait at least ve minutes before turning o the main power switch to the indoor or outdoor units.
Otherwise, water leakage or electrical breakdown may result.
•
Do not open the service cover or access panel to the indoor or outdoor units without turning OFF the main power supply. Before
connecting or servicing the controller or cables to indoor or outdoor units, open and tag all disconnect switches. Never assume
electrical power is disconnected. Verify with a meter and equipment.
• Use an exclusive power supply at the controller’s rated voltage.
• Be sure to install circuit breakers (ground fault interrupter, isolating switch, molded case circuit breaker, and so forth) with the
specied capacity. Ensure that the wiring terminals are tightened securely to recommended torque specications.
• Clamp electrical wires securely with a cord clamp aer 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.
• Do not pour water on 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 so cloth.
• Check that the ground wire is securely connected. Do not connect ground wiring to gas piping, water piping, lighting
conductor, or telephone ground wiring.

1. Safety Summary 2. Installation Work
6
2. Installation Work
[Before Installation]
(1) This packing contains the following parts.
Name PC-ARC-*Operation Manual Installation & Maintenance
Manual Screw Connecting Wire
Appearance
M4 × 16mm
Qty. 1 2▲2▲2 1
▲The manual quantity maybe one in some regions.
(2) When arranging the eco compact wired remote controller and other
controllers vertically, place them at least 2 inches(50mm) apart.
more than 2 inches(50mm
)

2. Installation Work
7
[Installation Procedures]
(1) Insert the edge of the slotted screwdriver into the groove at the bottom of the holding bracket, push and turn
the slotted screwdriver to separate and remove the controller from the holding bracket.
Groove Part
Figure Seen from Bottom Side
Slotted
Approx. 1/4 inches(6mm)
Screwdriver
NOTE:
• Do not insert the slotted screwdriver into the tab part beside the groove. The tab may be damaged and the eco
compact wired remote controller cannot be installed.
Tabs for Attaching Controller
Holding Bracket


上
上
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