Hitachi PC-ARFG2-Z Instruction Manual

ORIGINAL INSTRUCTIONS
–
INSTALLATION
&
MAINTENANCE MANUAL
–
Advanced Color
Wired Remote Controller
MODEL
PC-ARFG2-Z
A16381H9HF
26.0
Conference Room
Cool Fan Speed LouverTemp Menu
26 .0

Important Notice
A16381H9HF 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 wired remote controller is designed for human comfort air conditioning applications only.
Do not use this wired remote controller for anything other than the purposes for which it was intended for.
• If you have questions, please contact your distributor or dealer.
• Please read this manual carefully before using the product and le it for future reference.
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 filed 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 meet the requirements of the installation.
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 installer or local service agent to discuss any issues involving installation, performance or
maintenance.
5. Liability does not cover defects originating from unauthorized modifications 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.

Table of Contents
ii A16381H9HF
Table of Contents
1. Safety Summary ...........................................................................................................................................................1
2. Installation Work ..........................................................................................................................................................4
3. Electrical Wiring............................................................................................................................................................6
4. Entering Service & Installation ....................................................................................................................................7
5. Test Run ........................................................................................................................................................................8
6. Function Selection .......................................................................................................................................................9
7. Input/Output Setting .................................................................................................................................................21
8. Main Remote Setting..................................................................................................................................................22
9. Priority Setting .................................................................................................................................................................. 24
10. FrostWash .................................................................................................................................................................25
11. Setback Trigger Unit ................................................................................................................................................26
12. Operation Lock/Unlock Setting ..............................................................................................................................27
13. Password Setting .....................................................................................................................................................28
14. Hotel Mode Setting ..................................................................................................................................................29
15. Power Saving Details Setting ..................................................................................................................................30
16. Temperature Range Restriction ..............................................................................................................................33
17. Dual Setpoint Setting.................................................................................................................................................... 33
18. Main/Sub Display Setting............................................................................................................................................ 34
19. Room Name Setting .................................................................................................................................................... 34
20. Contact Information Registration .............................................................................................................................. 35
21. NFC Function ............................................................................................................................................................... 36
22. Backup System Setting............................................................................................................................................... 38
22.1 Backup System Setting Items ..........................................................................................................................40
22.2 Set Backup System ..........................................................................................................................................41
23. Adjusting Date/Time ................................................................................................................................................... 43
24. Check Menu ................................................................................................................................................................. 43
25. ESP Setting ...............................................................................................................................................................44
26. Premium Zoning Function.......................................................................................................................................48
26.1 Zone Installation Menu ....................................................................................................................................... 48
26.2 Check for Zoning Kit .........................................................................................................................................53
26.3 Features Not Available When Connected with Zoning Kit ..............................................................................53

1. Safety Summary
A16381H9HF 1
1. Safety Summary
Signal Words
WARNING
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
WARNING
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 qualied personnel 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, 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 installation 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 connecting 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, or short-out any safety device or switch.
• Use only Johnson Controls-Hitachi Air Conditioning genuine 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 which could result in death, serious injury or equipment damage;
○Will void product warranties;
○May invalidate product regulatory certications.

1. Safety Summary
2A16381H9HF
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.
• Avoid installing the unit in areas where electromagnetic waves are generated, as Electromagnetic interference
(EMI) may cause the equipment to malfunction. Do not install where the waves can directly radiate into the
electrical box, controller cable, or controller. 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.
• If the wired remote controller is installed in a location where electromagnetic energy is generated, make sure
that the wired remote controller is shielded and cables are run 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 limits, it may cause severe damage. Check the operation temperature
limits in the manual. If there is no specied temperature, install the unit in a location where the temperture
limits are between 0°C to 40°C.
• This manual must be read in conjunction with the installation and operation manuals of other equipment
being installed to get a full understanding of the equipoment and installation related topics.
Installation Precautions
WARNING
Take the following precautions to reduce the risk of electric shock, fire or
explosion resulting in serious injury or death:
• When using the wired remote controller with the built-in temperature sensor, do not install this controller:
○Where the controller is exposed to direct sunshine.
○Where the unit is in close proximity to a heat source which will inuence the accuracy of temperature
control.
○Where hot/cold air from the outdoors, or a dra from elsewhere (such as air vents, diusers, or grilles) can
inuence the accuracy of the detection of the actual room temperature.
• Perform a test run using the controller to ensure normal operation.
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 end user for safe keeping and future reference.
.

1. Safety Summary
A16381H9HF 3
Electrical Precautions
WARNING
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 remote controller against moisture and temperature extremes.
• Use specied cables between units and the controller.
• If the power cord is damaged, it must be replaced immediately by a suitably qualied tradesperson.
• Communication cabling must be a minimum of 18-Gauge, twin core stranded copper cable.
Shielded cable must be considered for applications 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-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 system has been turned o, and aer ve
minutes, power supply to the entire system has been isolated. This is to ensure that the system has undergone
and completed its proper shut-down process.
•
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.
• Clamp electrical wires securely with a cable ties aer all wiring has been completed. In addition, run wires
securely through the wiring access channel.
• 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.
• Avoid moisture ingress on to and in to 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.

2. Installation Work
4A16381H9HF
[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 mounting plate.
Groove Part
Figure Seen from Bottom Side
Slotted
Screwdriver
Approx. 6mm
NOTE:
• Do not insert the slotted screwdriver into the tab beside the groove. The tab may be damaged and the
advanced color wired remote controller cannot be installed.
Tabs for Attaching Controller
Mounting Plate
2. Installation Work
This manual is applied for common use of the wired remote controller(connnected in non-zoning or zoning
system). Refer to "Installation Work" of INSTALLATION & MAINTENANCE MANUAL of Premium Zoning Kit when
connected in Zoning system.
[Before Installation]
(1) This packing contains the following parts.
Name PC-ARFG2-Z Operation Manual Installation & Maintenance
Manual Screw
Appearance
M4 × 16mm
Qty. 1 1 1 2
(2) When installing two controllers one above the other, allow a gap of at least
50mm between the two.
more than 50mm

2. Installation Work
A16381H9HF 5
(2) According to different controller installation methods, choose one of the following two ways to install the
mounting plate and connect the cable .
Method 1 : To mount the controller directly on the surface of a wall:
c. Cut away the insulation at the end of the cable and clamp the M3 solderless terminals (eld-supplied).
(3) Re-attach the controller body to the controller mounting plate. Be careful not to pinch the cable when
attaching it.
a. Prepare the optional eld-supplied surface mounting box which can t the mounting plate.
Method 2 : to install the controller on a surface mounting box:
M4 Screws
(Field-Supplied)
Surface Mounting Box
Mounting Plate
Connect the te
rminals.
BA
Remove the
protective film.
b. Feed the cable through the conduit in the wall.
(4) After installation, remove the protective film from the LCD screen.
Cable Tie
(Field
-Supplied)
Cable
D. Attach the cable-tie to the cable
on the inside of the dr
aw-out hole.
Draw-out Hole
C. Feed the cable with its
sheath peeled through
the groove.
B. Peel away the insulation
at the end of the cable
and clamp the M3 (field-
supplied) solderless
terminals .
BA
A. Secure the mounting
plate onto the wall with
M4×16mm screws (supplied)
23 23
111
111.5
41.8
∅5
3-7
2-8.2
2-4.3
41.8
23
30 30
7
3-5
Unit: mm

3. Electrical Wiring
6A16381H9HF
ATTENTION:
1. Disconnect all power at the main power source before performing electrical work. Failure to do this can result
in fire, damage to internal components, and severe or fatal electrical shock.
2. When the wired remote controller is utilized in a zoning system, please refer to "Electrical Wiring" of
INSTALLATION & MAINTENANCE MANUAL of Premium Zoning Kit for guidance.
Max. 16 Indoor Units
Controller
AB
AB
Controller
(Secondary)
M3
Screws
Electrical Box
of Indoor Unit
Electrical Box
of Indoor Unit
Terminal Board Terminal Board
M3.5
Screws
M3.5
Screws
Use AWG 18 (0.82mm

) cable, (18-Gauge, twin core stranded copper cable).
AA
BB
Example of communication cable wiring for a non-zoning system:
A. Communication cabling must be a minimum of 18-Gauge, twin core stranded copper cable. Shielded cable
must be considered for applications in areas of high electronic interference (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-Hitachi
Air Conditioning guidelines. Plenum and riser ratings for communication cables must be considered per
application and local code requirements. The use of any other grade of cable other than that specied above
can result in malfunction from EMI.
B. Both the controller cable and communication cables between indoor units should maintain a distance for
more than 30cm with the power cord of the indoor units. If this is not done, the unit can malfunction due to
EMI generated by incoming power cables.
C. In systems where multiple indoor units are in synchronized control under a single controller, assign the
refrigerant cycle numbers and address for indoor units without duplication.
D. Refer to the "Unit No. Setting" of each Installation and Maintenance manual provided with indoor unit when
performing electrical wiring work between the controller and indoor units for setting the refrigerant cycle
number and the indoor unit address.
E. No gap should exist between the controller cable and the cable access inlet of the controller box casing. If
there is a gap, cover and seal the gap with vinyl tape. Failure to insulate against the penetration of moisture
and insects can result in degraded performance and damage to the unit.
F. If case of operating with two controllers (Primary and Secondary), set the primary and secondary controllers
by selecting the appropriate function for those controllers. Refer to Page 12 item F2 in chapter 6. Function
Selection. Aer this is set, reset the power supply to the system.
3. Electrical Wiring

4. Entering Service & Installation
A16381H9HF 7
4. Entering Service & Installation
Some functions are not available when the wired remote controller is connected in Zoning system, please see
26.3 Features Not Available When Connected with Zoning Kit for details.
Step1. Power On
1. Turn ON the power supply for all the indoor units.
2. For models equipped with an auto-address function, wait approximately 3 minutes.
The controller will go through an initialization process. Please wait till this is completed before
making any settings.
Step2. Enter Menu
1. While the air conditioner is OFF, press " " to scroll across to
the "Menu" and press "OK" to display the Menu screen.
While the air conditioner is ON, press " " to select "Menu"
and display the Menu screen.
Step3. Select "Service & Installation"
1. Select "Service & Installation" and press "OK".
Step4. Input Password
1. Input password by pressing "", " ", " ", or " ",select "
OK
".
Then press "OK ".
Password is required to prevent unintentional and unauthorised
settings.
The default user password is "0000".
Service & Installation Menu screen is displayed.
If the password input eective time has been set to "Everytime"
then the password will need to be entered each time the Service
and Installation menu is accessed. If the password input eective
time has been set to either 10, 30, 60 or 120 minutes, then the
password prompt will not display if accessed within these durations.
NOTES:
• In order to enhance the security protection, please be sure to change the default password.
• If you enter the wrong password more than 5 times, you will not be able to enter the password within
1 minute.
• Please refer to the manual of the outdoor unit for the service menu "Cool/Heat Auto Changeover".
Cool Fan Speed Louver Menu
Service & Installation
Screen Display Setting
Menu
Contact Information
Temp
(Mon) 16:30
Function Menu
Service & Installation
Check Menu
Installation Menu
Service Menu
OK Select Back
(Mon) 16:30
Cool Fan Speed Louver Menu
Service & Installation
Screen Display Setting
Menu
Contact Information
Temp
(Mon) 16:30
Function Menu
Enter Password
OK
0 0 0 0
Service & Installation
Screen Display Setting
Function Menu
Menu
Contact Information
(Mon) 16:30
OK Select Back
Cool Fan Speed Louver Menu
Service & Installation
Screen Display Setting
Function Menu
Menu
Contact Information
Temp
(Mon) 16:30