Hitachi PC-ALH5Q User manual

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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, rst 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 le it for future reference.

• Aer installation, conduct trial running; aer conrming 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

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.

Indicates a mandatory issue, instructing behaviors of non-specic general users.

Indicates a forbidden issue.

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Installation

WARNING

• Please install the product in strict accordance with this manual. Otherwise,

accidents such as electric shock, re 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 re may

happen

• Install the product only aer 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 uorescent lamp (frequency-varying uorescent lamp), it may not receive

wireless remote controller signals normally.

Electrical Installation

WARNING

• The electrical installer shall have qualications for such activity. Please appoint

a qualied 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 re may happen.

• Please use the required connecting cable. Otherwise, re and electric shock

may happen.

• Cable shall be connected securely and rmly. Any loose connection may lead

to heated wires which may cause re 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 rst. 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.

1. Compatible Indoor Unit Models

Types of indoor devices compatible with the IR Receiver Kit

Model of IR Receiver Kit Model of Compatible Indoor Unit

PC-ALH5Q 4-Way Cassette Type PCI-2.0~6.5UFA1NQ

2. Before Installation

Please conrm the following accessories are in the package before installation.

Accessory Q’ty Remarks

IR Receiver Kit 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

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3. Key Points for Installation

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

powered o.

(2) When the IR Receiver Kit is installed aer the indoor unit and the panel were installed, power it o and

then remove the panel before installing the IR Receiver Kit.

(3) The IR Receiver Kit can be installed at any of the corners

marked ①②③④ on the panel. Choose the position aer 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.

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



Mark Band "B"

Mark Band "A"

Connecting Cable

Terminal Board for

Remote Controller

Electric Box

(5) Aer 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 aer the panel is installed.

Draw the connecting cable out of the corner pocket of the panel as shown in the gure below and

connect the wire of the IR Receiver Kit to the connector of the connecting cable. Aer the connector is

connected, wrap the connector tightly with the attached wiring cover and x it with a plastic band.

Air Panel

Corner Pocket

Connecting Cable

Plastic Band

Relay

Wiring Cover

Plastic Band

Connector

IR Receiver Kit

Air Panel

Connecting Cable Hook

Wire interface

of the indoor unit

Relay connector

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• How to remove the IR Receiver Kit

a. 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 Ⓓ.

b. As shown in the gure 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.

Hook

Blinding

Band

While pushing the wiring into the corner pocket, insert the xing 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 xing hook (1 portion) at Ⓑ to the square hole of the air panel.

NOTE:

Catch securely the xing hooks of the IR Receiver

Kit to the air panel.

If not, the xing hooks will be damaged.

Fixing Hook

(8) Aer 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.

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4. 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 gure below.

NOTE:

After the dip switch is set, keep an eye on the location to

draw out the wire when installing the box cover.

COOL HEAT

Screw o cover

Dip Switch DSW1

Factory-setting

Circuit

board

Cover

Back of the IR Receiver Kit

COOL Button

Dip Switch DSW2

Factory-setting

HEAT Button

RUN

DEFROST

SIGNAL

TIMER

FILTER

IR Receiver Kit Indicator Lamp

(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.

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

the following requirements.

DSW1 1st digit Primary/Secondary setting

ON When using 2 remote controllers, set as secondary remote controller.

OFF When using 2 remote controllers, set as primary remote controller.

DSW1 2nd digit DSW1 3rd digit Adjacent unit setting mode

OFF OFF mode A

ON OFF mode B

OFF ON mode C

ON ON mode D

DSW1 4th digit Elevator griller setting

ON Elevator griller Up/Down is enabled.

OFF Elevator griller Up/Down is disabled.

DSW2 1st digit Emergency operation setting

ON Emergency operation is enabled

OFF Emergency operation is disabled.

DSW2 2nd digit Reserved

ON -

OFF -

5. 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].

a. 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.

b. 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.

Indoor

unit A Indoor

unit B

The

indicator

is on

Set the wireless remote

controller at “adjacent

unit setting”

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6. 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.

a. 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.

b. 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 gure.

(2) The signal cable of all units shall not be in parallel with the power cable within the device and shall

be xed 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.

Indoor unit

(address setting required)

Wireless remote controller

Wireless Remote Controller

Indoor Unit

with IR Receiver Kit

Standard

Indoor Unit

Standard Indoor Unit or

Indoor Unit with IR Receiver Kit

Should be Standard Indoor Units

Standard

Indoor Unit

Available to Install IR Receiver Kit

IR Receiver Kit Indoor Unit

Connect up to 16 indoor units

(Sub-wired remote controller

or IR Receiver Kit)

Indoor Unit

Terminal Block Terminal Block

(Twisted pair cable, 1P-Min.0.75mm2)

7. Method for Test Running with the Wireless Remote Controller

Please test it in accordance with the wireless remote controller’s Operation Manual.

8. Alarm Code Indication

•

In case that some trouble occurs because of activation of safety device, etc., “ ” (red lamp) ashes

(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 ashing 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

" " (yellow lamp)

Alarm

3 5

" " (green lamp)

" " flashes 3 times (0.5 second ON / 0.5 second OFF)

" " (yellow lamp) flashes 5 times (0.5 second ON / 0.5 second OFF)

• “” (red lamp) ashing (1 second ON / 1 second OFF) indicates abnormal transmitting between Indoor

Units and Outdoor Unit.

1200093 Scan the code to get the electronic manual.

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.

P02263Q 2023.09 V00 Printed in China

Hitachi PC-ALH5Q User manual

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