Hitachi PC-LH3A Manuel utilisateur
P5416537
Model: PC-LH3A, PC-LH3B
Operation & Installation Manual for
Wireless Remote Control Switch (Unidirectional Type)
1
IMPORTANT NOTICE:
lHITACHI pursues a policy of continuing improvement in design and performance of products.
The right is therefore reserved to vary specications without notice.
lHITACHI cannot anticipate every possible circumstance that might involve a potential hazard.
lThis kit is designed for combination of HITACHI Air Conditioners.
Do not use this kit itself or combination of other companies Air Conditioners.
lThis product is designed for standard air conditioning only.
DO NOT use this product for specic purposes, such as restoring foods, animals & plants, precision
devices, art objects, etc.
l No part of this manual may be reproduced without written permission.
l Signal words are used to identify levels of hazard seriousness.
Denitions for identifying hazard levels are provided below with their respective signal words.
: DANGER indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
: WARNING indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
: CAUTION, used with the safety alert symbol, indicates a hazardous
situation which, if not avoided, could result in minor or moderate injury.
: NOTICE is used to address practices not related to personal injury.
NOTE : NOTE is useful information for operation and/or maintenance.
lPerform the test run whether there is abnormality or not after the installation work is completed.
The usage and the maintenance should be explained to a user according to “Installation & Maintenance
Manual” of the indoor unit. Describe to keep this installation manual also.
l It is assumed that this kit will be installed and serviced by English speaking people. If this is not the case,
the customer should add safety, caution and operating signs in the native language.
l If you have any questions, contact your distributor or dealer of HITACHI.
l This manual gives a common description and information for this wireless remote control switch which you
operate as well as for other models.
l DO NOT install the unit in the following places. It causes failure to the unit in many cases.
* Places where oil (including machinery oil) mist and steam drifts.
* Places where a lots of sulde gas drifts such as in hot spring.
* Places where inammable gas may generate or ow.
* Places where air contains high salt contents as coast regions.
* Places where with atmosphere of acidity or alkalinity.
l Pay attention to the following points when the unit is installed in a hospital or other facilities where
electromagnetic wave generates from medical equipment.
* Do not install the unit in the place where the electromagnetic wave is directly radiated to the electrical
box, remote control switch cable or remote control switch.
* Install the unit at least 3 meters away from electromagnetic wave such as a radio.
l DO NOT install the unit in the place where the air ow directly catches to animals or plants.
It could be the cause of adverse affect to animals or plants.
1. Before Installation and Operation
Set the batteries (AAA/1.5V52) for the controller as
follows.
(1) Remove the battery cover by sliding toward the
arrow direction by pushing the part of the cover as
shown in the right gure.
(2) Set the batteries. (Insert the batteries according
to the marks of + and - on the case.)
2. Setting Batteries
This packing contains the following parts. Check the contents and the number of the parts.
Name Q’ty Remark
Wireless Remote Control Switch
(Controller) 1 For Operation Control
Holding Bracket 1 For Controller
Battery (AAA/ 1.5V Dry Cell) 2For Power Source of Controller
Screw 2For Fixing “Holding Bracket” onto Wall
Slide the cover in
the arrow direction
with pushing.
AAA Batteries
2
● Do not turn ON the power source, unless the preparation for test running is completed.
● Read this manual carefully before installation work for correct performance.
● Read this manual together with the “Installation & Maintenance Manual” of the indoor unit.
3. Name of Parts
Controller:
3
● This controller is used to send commands about operation mode, timer setting, etc. to the indoor unit.
Face the transmitter of the controller toward the receiver of the indoor unit and press the switch of required
operation so that commands (by infrared rays) are sent to the indoor unit.
● The distance for transmitting is approximately 6 meters as a maximum. (The capable distance for transmitting
will get shorter in case that the transmitting angle is not vertical to the receiver or an electronic type light is
used in the room, etc.)
● PC-LH3B is only available for the combination of the receiver kit and the indoor unit which are supported
HIGH2 mode.
1 Step 2 Step 7 Step Auto Swing
ON
OFF
°C
Hi
Me
Lo
TIMER
MODE
RESET TEMP.
FAN
LOUVER
CANCEL
OFF TIME
TIMER
SET
ON TIME
AUTO
HEAT
DRY
COOL
FAN
RUN/STOP
Transmitter
Point the transmitter towards the receiver of the indoor unit when sending
commands. The transmitting indication on the liquid crystal display flashes
when sending commands.
Transmitting Indication
Liquid Crystal Display
The set temperature, timer operation, position of air louver, operation mode,
air flow mode, etc., are indicated. The fan speed setting “HIGH2” will not be
shown on PC-LH3A. The diagram of the display shown on the left is for
explanation purposes only. The display will differ during actual operation.
Run/Stop Switch
Operation of the unit can be started or stopped by pressing this switch.
Fan Speed Switch
Press this switch to select the fan speed. By repeatedly pressing the button,
the setting will change sequentially through HIGH2, HIGH, MED and LOW.
(Fan speed is fixed at Low for dry operation.)
O: Available
X: Not available
HIGH2 is not indicated on PC-LH3A.
Mode Selection Switch
By repeatedly pressing the mode switch, the unit cycles through
the different operating modes in the order of HEAT, DRY, COOL and FAN.
To select auto operation, press the switch for more than 3 seconds.
If the switch is pressed again, it will return to FAN mode.
Louver Angle Switch
The airflow angle and auto-louver operation can be set by this switch.
When pressing the switch, the angle is changed in the following order.
(In cool or dry operation modes, steps 1-5 and Auto swing are available.)
Temp. Switch
The setting temperature can be adjusted using this switch.
Timer Switches
Four switches control the timer operation.
The set time can be changed by pressing “ON TIME” or “OFF TIME” and is set
by pressing the “SET” switch. Ti
mer operation can be cancelled using “CANCEL”.
Reset Switch
(1) Press RESET to turn off the filter indicator lamp after filter cleaning.
(2) If the unit is stopped abnormally due to protection devices etc.,
press the RESET switch to cancel the control stoppage
after the cause of the abnormality has been removed.
PC-LH3A PC-LH3B
Hi 2 (HIGH2)
Hi (HIGH)
Me (MED)
Lo (LOW)
X O
O
O
O
O
O
O
Hi 2
The figure shows
for PC-LH3B.
Model
Fan
Speed
4. Sending Commands from Controller
The operation commands are sent by
pressing the required operation switch by
facing the transmitter of the controller toward
the receiver of the indoor unit.
(1) When the commands are sent,
the “ ” indication on the liquid
crystal display of the controller ashes
once.
(2) The indication lamp (yellow) on the
receiver part of the indoor unit turns
ON for an instant when the indoor unit
receives the commands.
ATTENTION:
In case that the indication lamp (yellow) does not turn ON although the commands are sent, the
commands are not received by the indoor unit. In such a case, send the commands again.
ATTENTION:
The transmitter of the controller has the vertical directivity to the receiver, and the permissible
angle for transmitting is within 50o. However, the capable distance for transmitting gets half when
the transmitting angle is 50o, and also get shorter in case that an electronic type light is used in
the room.
NOTE:
The above gure shows the case of a 4-way cassette type indoor unit. The gures for other models are
different partially.
LCD (Liquid Crystal Display) Indication
When viewed from certain angles the LCD can be difcult to read.
The viewing angle ranges from an optimal of 60o down to 30o, as
shown in the diagram on the right. If the viewing angle is below
30o, the indications not displayed are slightly faded so that makes
the indication be hardly readable. It is the characteristics of this
LCD, which is not abnormality.
60
o
30
o
4
°C
Hi
MODE
RESET TEMP.
FAN
LOUVER
CANCEL
OFF TIME
TIMER
SET
ON TIME
AUTO
Receiver Part
Direct Line between
Transmitter and Receiver
Capable Distance for Tr
ansmitting:
Max. 6m
Within approx. 50o
(Directivity)
PC-LH3A
PC-LH3B
Transmitting
indication " "
flashes once.
Receiver
Indication Lamp (Y
ellow)
turns ON for an instant.
EMERGENCY
COOLHEAT
RUNFILTER DEFTIMER
6. Operation
When operating the controller, face the transmitter toward the receiver of the indoor unit and press the switch
for the required operation as described in the item “4. Sending Commands from Controller”.
ATTENTION:
In case that two indoor units are installed side by side, the commands from the controller may be
received by both indoor units. The function to identify each indoor unit not applicable.
The item 5 “ Identifying Indoor Units Side by Side Operation” shall be set if recognition is
required.
Turn OFF the power source completely before performing the dip switch setting for receiver kit.
If not, it may cause an electric shock.
In the case that two indoor units are installed side by
side, the commands from the wireless remote control
switch may be received by both indoor units. The
function, “Identifying of Indoor Units Installed Side by
Side” enables to operate the individual unit correctly
without interfering other unit’s operation. As shown in
the right gure, the indoor units of A and B are set side
by side. In this case, the unit B is set as “Identifying
Indoor Units Installed Side by Side”.
NOTE:
This function is required to set at the receiver side. It
shall be set according to the installation manual of the
receiver kit or the indoor unit.
< Setting of Identifying of Indoor Units Installed Side by Side >
(1) Press and hold “ON TIME” switch and “OFF TIME” switch of the
wireless remote control switch simultaneously for 3 seconds.
The “b” is indicated on the liquid crystal display for 3 seconds.
(2) When the above procedure (1) is performed, only the identied
indoor unit (B unit) operation is available. The indoor unit A does not
correspond to the commands from the identied wireless remote
controller.
< Cancellation of Identifying of Indoor Units Installed Side by Side >
Press the “ON TIME” switch and the “OFF TIME” switch
simultaneously for more than 3 seconds. The “A” is indicted on the
liquid crystal display for 3 seconds.
NOTE:
This function is required to cancel at the receiver side. It shall be
cancelled according to the installation manual of the receiver kit or
the indoor unit.
Indoor
Unit A
Indoor
Unit B
"Identified"
Indoor Unit
"Identified"
Wireless Remote
Control Switch
"A" "b"
Receiv
er
Kit A
Receiv
er
Kit B
5. Identifying Indoor Units Installed Side by Side Operation
Setting of Identified
Indoor Unit
Cancellation of Identified
Indoor Unit
5
8. Test Running by Controller
ATTENTION:
Test running by the controller can not be performed in case that the wired remote control switch
is used together; in case that multiple units are operated simultaneously (SET-FREE and UTOPIA
Series). In such cases, perform the test running by the wired remote control switch.
1) Perform the test run after the installation work is completed.
(1) Set the batteries for the controller.
(2) Turn ON the power supply for the indoor and outdoor units.
(3) “ ” lamp (yellow) on the receiver of the indoor unit ashes (0.25 seconds ON 0.25 seconds
OFF), and then turns OFF. While the lamp is ashing, the unit will not operate because it is
initializing.
2) Set the test run mode by pressing “SET” and
“OFF TIME” switch simultaneously for more than
3 seconds. The LCD should be as shown in the
gure on the right.
3) Set the operation mode by pressing the “MODE”
switch.
OFF
TIMER
COOL
OFF
°C
Me
TIMER
COOL
Test Run Mode is under suspension.
Test Run Mode is under operating.
ATTENTION:
When the commands are sent by the controller hooked onto the wall, the receiver of the indoor
unit may not receive the commands depending on the installation place.
2) Pay attention to the following points in case that the controller is installed in a place where there is
medical equipment radiating electromagnetic waves.
(1) Install the controller in a place where electromagnetic waves are not radiated directly toward the
electrical box of the indoor unit and the controller.
(2) Keep a distance more than 3 meters away from the equipment radiating electromagnetic waves, the
receiver of the radio, etc. for prevention of the noise through the air.
(3) In case that there is electric noise at the power source for the indoor unit, the treatment such as
providing a noise lter is required.
3) Do not install the controller in a place where generation, owing, staying or leaking of ammable gas is
detected.
4) Install the controller in a place where there is a distance more than 30cm from the power supply cable
when installing the controller onto the wall.
5) Install the holding bracket (accessory) onto the wall by using screw (accessory) and attach the controller
to the holding bracket.
7. Installing onto the Wall or Pillar
1) Select the suitable place for handling and install the controller with the customer’s acceptance.
Do not install the controller at the places as follows.
* where children can touch
* where the air from the air conditioner is directly discharged
* where there is oil vapor and the oil is dispersed
* where the humidity is high
6
9. Simultaneous Operation of Multiple Indoor Units
Do not perform this operation in case that the
multiple indoor units are installed in different
rooms separately. It may happen that some indoor
units remain unchanged.
The multiple indoor units (Max. 16 units) can be started and
stopped simultaneously by one controller.
Perform this operation only in case that multiple indoor
units are installed in a room. The detail for setting method
shall be referred to the installation manual of the indoor
unit.
Control Cable between
Indoor Units
Control Example of Simultaneous Operation of Multiple Units
Indoor Unit
Controller
4) Operate the Test Run by pointing the transmitter towards the receiver of the indoor unit and press the
“ RUN/STOP” switch. When the commands are received by the indoor unit, the “ ” lamp (yellow)
of the receiver will come on briey. Check the commands are received well and the mode selected 3) is
set correctly. In the test run mode, the red lamp (RUN) of the receiver is turned ON and the green lamp
(TIMER) ashes (0.5 seconds ON 0.5 seconds OFF) (*2). And then set off timer for 2 hours.
NOTES:
1. In the case that the “ ” lamp (yellow) does not turn ON, the controls may not have reached the
receiver. Send the commands again.
2. (*2) In the case of RPK model, “TIMER” lamp is turned ON without ashing.
5) Adjust the angle of the air louver as follows.
The air louver has a mechanism for the auto-swing function.
Do not move the louver by hand forcefully.
(1) Select the FAN mode by pressing the “MODE” switch.
(2) Set the louver angle by pressing the “LOUVER” switch.
The louver direction is changed as follows. (For heating and fan operation)
6) Stop the Test Run
(1) Test Run is stopped after 2 hours automatically.
(2) Test Run is stopped by pressing “ RUN/STOP” switch again. To complete Test Run, cancel the
remained timer indication by pressing the “CANCEL” switch.
After Test Run is nished, check that the red lamp (RUN) and the green lamp (TIMER) are turned OFF.
LCD Indication
P5416537, 2015 Printed in Japan
© 2015 Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Ltd.
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