HITACHI PC-ALH5Q 4-Way Cassette Air Conditioner Unit Instruction Manual

HITACHI PC-ALH5Q 4-Way Cassette Air Conditioner Unit

Product Information

• Product Name: IR Receiver Kit
• Model: PC-ALH5Q
• Product Type: General control product
• Supported Function: Requires support from the air conditioning system
• Installation Requirements: Please consult your dealer for further details

Approved Installation Places:

• Places without oil splash or vapor
• Places without sulfide gases, such as hot springs
• Places without high salt content or alkaline/acidic environment
• Places not accessible to children
• Dry places
• Places not facing towards the air outlet of the air conditioner
• Places with minimal flying dust or dust
• Places not under construction

Product Usage Instructions

Safety Summary: Please read the operation and maintenance methods provided in the manual and keep it well.

Signal Words:

• WARNING: Indicates a hazardous situation that, if not avoided, could result in death or serious injury.
• CAUTION: Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.
• MANDATORY: Indicates a mandatory issue, instructing behaviors of non-specific general users.
• FORBIDDEN: Indicates a forbidden issue.

Installation:

• WARNING: Install the product at a place capable of bearing its weight to avoid accidents such as electric shock, fire, and falling.
• WARNING: Do not install the product in places where oil splash, vapor, or sulfide gases exist to prevent fire, deformation, corrosion, and damage.
• CAUTION: Avoid placing the device where waves it creates are pointed directly at the product to prevent malfunctioning.

Electrical Installation:

• WARNING: Use a qualified dealer for electrical installation to avoid electric shock.
• Follow the instructions for use and ensure a dedicated circuit is used to prevent electric shock and fire.

CAUTION: Avoid exposing the product to heated wires to prevent fire and electric shock.

• CAUTION: Disconnect the power supply before performing electrical wiring or spot inspection to avoid electric shock.
• CAUTION: Keep the product away from the power cable to avoid interference and malfunctions.

Compatible Indoor Unit Models: The IR Receiver Kit (Model: PC-ALH5Q) is compatible with the following indoor unit model:

Before Installation: Please confirm the following accessories are included in the package before installation:

• IR Receiver Kit (with connecting cable) – 1
• Wiring Cover – 1
• Band for Protection of Connecting Cable – 1
• Operation and Installation Manual (this manual) – 1

Operation & Installation Manual for IR Receiver Kit

Model: PC-ALH5Q
Please read this document in detail before installation.
Note: This document must be used in the following installation operations and therefore must be well kept by the user.
(Handling and installation) → (wiring) → (trial running) → (user)

Foreword

This product is a general control product, and its functions need support of the air conditioning system. Please consult your dealer for further details.

• When selecting the installation place, first consideration shall be given to the convenience of users and the place must be approved by the user.
  Please do not install this product at the following places:

  • Places where there is oil splash (including mechanical oil) and vapor, and places where more sulfide gases, such as hot springs, exist (which possibly results in fire and deforming, corroding and damaging the product);
  • Coastal regions with high salt content, and alkaline or acidic environment (possibly result in the product being corroded);
  • Places where children are accessible;
  • Humid places;
  • Places facing towards the air outlet of the air conditioner;
  • Places where there is much flying dust or dust;
  • Places under construction.

• When using devices like certain medical equipment that produce electromagnetic waves, make sure not to position the device in a way where the waves it creates are pointed directly at this product. This helps prevent the device from malfunctioning.

Safety Summary

• Please read this manual carefully before using the product and file it for future reference.
• After installation, conduct trial running; after confirming that there is no anomaly, please introduce the operation and maintenance methods to the user and ask the user to keep the manual well.

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 a mandatory issue, instructing behaviors of non-specific general users.
| Indicates a forbidden issue.

Installation

WARNING| •  Please install the product in strict accordance with this manual. Otherwise,accidents such as electric shock, fire and falling may happen.

Please install the product at the place capable of bearing its weight. Otherwise,falling object may cause injury.

---|---
•  Please do not install the product at any place where combustible gas may be generated or come in. Otherwise, accidents such as electric shock and fire may happen.
•  Install the product only after the power supply is disconnected. Otherwise, electric shock may happen.
CAUTION| •  If the product with the IR Receiver Kit is interfered by external light source such as fluorescent lamp (frequency-varying fluorescent lamp), it may not receive wireless remote controller signals normally.

Electrical Installation

WARNING| •  The electrical installer shall have qualifications for such activity. Please appoint a qualified dealer to do the job. Otherwise, electric shock may happen.
---|---
•  During electric installation, please comply with applicable national standards and the Instructions for Use and make sure a dedicated circuit is used.

Otherwise, accidents such as electric shock and fire may happen.

•  Please use the required connecting cable. Otherwise, fire and electric shock may happen.
•  Cable shall be connected securely and firmly. Any loose connection may lead to heated wires which may cause fire and electric shock.
•  When the control board of the product or its related device must be taken out due to electrical wiring and spot inspection etc., please completely disconnect

the power supply first. Otherwise, electric shock may happen.

CAUTION| •  The routing of communication cable shall not be in parallel with that of power cable. Otherwise, it may generate interference causing malfunctions.

Compatible Indoor Unit Models
Types of indoor devices compatible with the IR Receiver Kit

Before Installation

Please confirm the following accessories are in the package before installation.

1

|

With Connecting Cable

Wiring Cover |

1

|

For Protection of Connecting Cable

Band |

3

| For Fixing Wiring Cover and

Connecting Cable

Operation and Installation Manual (this manual)|

1

|

Key Points for Installation

1. Install the IR Receiver Kit during the indoor unit and the pannel installation. Make sure the system is powered off.

2. When the IR Receiver Kit is installed after the indoor unit and the panel were installed, power it off and then remove the panel before installing the IR Receiver Kit.

3. The IR Receiver Kit can be installed at any of the corners marked①②③④ on the panel. Choose the position after checking with the user.
   NOTE:
   DSW1 and DSW2 of the IR Receiver Kit can be used to set functions; please set the functions before installing the panel by referring to the instructions in Page 5.

4. Remove the cover of the electric box of the indoor unit and connect the attached relay connector to the terminal block of the electric box of the indoor device as shown in the following figure.

5. After the attached connecting cable is connected to the terminal block, draw the connecting cable from the wiring inlet of the indoor device into the ceiling or to the outside of the outdoor device, then draw the connecting cable to the place where the IR Receiver Kit is to be installed, referring to the indoor device’s instructions. Move the connecting cable through the hanger of the indoor device to the place where the IR Receiver Kit is to be installed. And reserve a 100 ~ 200 mm long connecting cable at the relay connector.

6. Install the panel
   For installation method, please refer to the panel’s Installation Manual.

7. Install the IR Receiver Kit after the panel is installed.
   Draw the connecting cable out of the corner pocket of the panel as shown in the figure below and connect the wire of the IR Receiver Kit to the connector of the connecting cable. After the connector is connected, wrap the connector tightly with the attached wiring cover and fix it with a plastic band .

8. How to remove the IR Receiver Kit

  * Insert a coin or a flat screwdriver in the coil hole on Ⓐ in the corner box’s protective cover, screw it downward and the corner box’s protective cover upsprings. In this case, insert the coin or a flat screwdriver in the coin holes on Ⓑ and Ⓒ, screw it downward, the protective cover up springs like Ⓐ. When 3 snap springs pops up, pull them out in the direction Ⓓ.
  * As shown in the figure below, hang the band on the rear side of the IR Receiver Kit at the hook of the panel.  

NOTE:
Make sure the binding band is hung on the hook. Otherwise, the IR Receiver Kit possibly falls off and hurts people when to be taken out.
NOTE:
Catch securely the fixing hooks of the IR Receiver Kit to the air panel.
If not, the fixing hooks will be damaged.

  * While pushing the wiring into the corner pocket, insert the fixing hooks (2 portions) at Ⓐ to the square hole of the air panel, and push the IR Receiver Kit toward the arrow direction (Ⓐ). Then, insert the fixing hook (1 portion) at Ⓑ to the square hole of the air panel.

8. After the IR Receiver Kit is installed, begin installing the protective cover of the corner pocket of the panel (3 places). For installation method, see the panel’s Instructions for Installation.
   NOTE:
   When the IR Receiver Kit is installed, a corner pocket will leave unused.

Set the IR Receiver Kit

WARNING
Before setting the dip switch of the IR Receiver Kit, make sure it is powered off, otherwise, it may cause electric shock.

Buttons and the dip switch of the IR Receiver Kit

1. The location of IR Receiver Kit and its dip switch is shown in the figure below.
   NOTE:
   After the dip switch is set, keep an eye on the location to draw out the wire when installing the box cover.

2. Buttons “ ” and “ ” are for emergency operation. It is used for operating the unit directly without using the wireless remote controller.
   Button “ ”: Press “ ” to start cooling operation; Press “ ” again to stop.
   Button “ ”: Press “ ” to start heating operation. Press “ ” again to stop.
   NOTE:
   During emergency operation, the yellow indicating light on the IR Receiver Kit is flashing in the cycle of 0.5 second on/0.5 second off.

3. The dip switch (DSW1 & DSW2) are optional for function setting and when needed, shall be set as per the following requirements.

Adjacent Unit Setting Mode

When two indoor units are set adjacently, sometimes, both indoor units may receive signals from the wireless remote controller simultaneously. To ensure both indoor units operate properly, the IR Receiver Kit of one of them may be set at the mode [adjacent unit setting]. For example, for two indoor units A and B shown in the right figure, set B at the mode [adjacent unit setting].

Method to set the adjacent unit setting mode

1. Set the IR Receiver Kit
   Set 2nd digit and 3rd digit of the dip switch (DSW1) on the IR Receiver Kit of the indoor device B (object to be set) to another mode.

2. Set the wireless remote controller
   For setting, please refer to wireless remote controller’s Operation Manual.

Method to cancel the adjacent unit setting mode

1. Set the IR Receiver Kit
   The adjacent unit setting mode can be cancelled just by setting 2nd digit and 3rd digit of the dip switch (DSW1) on the IR Receiver Kit to OFF.

2. Set the wireless remote controller
   For canceling, please refer to wireless remote controller’s Operation Manual.

About Simultaneous Control of Multiple Units

One IR Receiver Kit can be used to control simultaneously a number of indoor units (up to 16 devices).
When a number of indoor devices are installed in a large room, one single wireless remote controller can be used to run and stop all these devices.

NOTE:
When a number of units are under simultaneous control, all their indoor devices shall be placed in the same room. If using one wireless remote controller to control air conditioners in more than two rooms, it is possible to forget to close one.

Set the IR Receiver Kit

In case of simultaneous operation of multiple (up to 16) indoor units by the wireless remote controller, install the IR Receiver Kit only to the unit to be operated. Other units should be the standard units without the IR Receiver Kit. If multiple IR Receiver Kits are required to install, 2 IR Receiver Kits are available at a maximum.

Methods for wire connection and setting for the purpose of simultaneous control of multiple units

1. Method to connect wires between indoor unit Perform the connection work as following figure.
2. The signal cable of all units shall not be in parallel with the power cable within the device and shall be fixed with wire buckle at key places. The distance between the signal cable and the power cable shall be at least 30 mm outside the devices. Or, put the signal cable through the protective sleeve, one end of which shall be grounded. When a shielded signal cable is used, one end of the shielding net shall be grounded.
3. Set addresses of all indoor devices.

Method for Test Running with the Wireless Remote Controller
Please test it in accordance with the wireless remote controller’s Operation Manual.

Alarm Code Indication

• In case that some trouble occurs because of activation of safety device, etc., “ ” (red lamp) flashes (0.5 second ON / 0.5 second OFF).

• Refer to the Technical Catalogue of airCore 700 unit about Alarm Code List.

• Alarm Code indicates the flashing times of “ ” (green lamp) and “ ” (yellow lamp) as shown below.
  “ ” (green lamp): The flashing is shown at the 2 digit of Alarm Code
  “ ” (yellow lamp): The flashing is shown at the 1 digit of Alarm Code
  (Alphabet Code: A=10 times, B=11 times, C=12 times, …..)
  Example

• “ ” (red lamp) flashing (1 second ON / 1 second OFF) indicates abnormal transmitting between Indoor Units and Outdoor Unit.

Hitachi-Johnson Controls Air Conditioning, Inc.
Add.: 1-16-1, Kaigan Minato-ku, Tokyo, Japan

Specification in this catalogue are subject to change without notice, in order that Hitachi-Johnson Controls may bring the latest innovation to customers.

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