Hitachi RPIL-1.0UNE1NH User manual

SERVICE MANUAL
HPS2017004HA

Models
Ducted
Cassette
Floor ceiling
< Outdoor Units >
< Indoor Units >
RPIL-1.0UNE1NH
RPIL-1.5UNE1NH
RPIL-2.0UNE1NH
RPIM-3.0UNE1NH
RPIH-4.0UNE1NH
RPIH-5.0UNE1NH
RPIH-6.0UNE1NH
RPIH-6.5UNE1NH
Heat pump type
RPIL-1.0TNE1NH
RPIL-1.5TNE1NH
RPIL-2.0TNE1NH
RPIM-3.0TNE1NH
RPIH-4.0TNE1NH
RPIH-5.0TNE1NH
RPIH-6.0TNE1NH
RPIH-6.5TNE1NH
Cooling only type
RCI-1.5UNE1NH
RCI-2.0UNE1NH
RCI-3.0UNE1NH
RCI-4.0UNE1NH
RCI-5.0UNE1NH
RCI-6.0UNE1NH
RCI-6.5UNE1NH
Heat pump type
RCI-1.5TNE1NH
RCI-2.0TNE1NH
RCI-3.0TNE1NH
RCI-4.0TNE1NH
RCI-5.0TNE1NH
RCI-6.0TNE1NH
RCI-6.5TNE1NH
Cooling only type
RCI-1.5UNE1NH
RCI-2.0UNE1NH
RCI-3.0UNE1NH
RCI-4.0UNE1NH
RCI-5.0UNE1NH
RCI-6.0UNE1NH
RCI-6.5UNE1NH
Heat pump type
RCI-1.5TNE1NH
RCI-2.0TNE1NH
RCI-3.0TNE1NH
RCI-4.0TNE1NH
RCI-5.0TNE1NH
RCI-6.0TNE1NH
RCI-6.5TNE1NH
Cooling only type
RAS-1.0UNESNH1
RAS-1.5UNESNH1
RAS-2.0UNESNH1
RAS-3.0UNESNH1
RAS-4.0UNESNH1
RAS-5.0UNESMH1
RAS-6.0UNESMH1
RAS-6.5UNESMH1
Heat pump type
RAS-1.0TNESNH1
RAS-1.5TNESNH1
RAS-2.0TNESNH1
RAS-3.0TNESNH1
RAS-4.0TNESNH1
RAS-5.0TNESMH1
RAS-6.0TNESMH1
RAS-6.5TNESMH1
Cooling type
●
NOTE:
Heating and electric heating function are not available for cooling only models.

DC-InverterAir Conditioner Service Manual
Table of Contents
1. Option list ..................................................................................................................... 1
1.1Wired Remote Controller......................................................................................... 1
1.2 Wireless Remote Controller.................................................................................. 10
1.3 IR receiver............................................................................................................ 15
2.Troubleshooting.............................................................................................................. 16
2.1Trouble guide ........................................................................................................... 16
2.2 Fault codes ............................................................................................................. 21
3. Checking components................................................................................................... 31
3.1 Check refrigerant system...................................................................................... 31
3.2 Check parts unit................................................................................................... 33
4.Disassembly and assembly for compressor and motor..................................................... 41
5.Control logic description................................................................................................. 52

1
1. .O OP PT TI IO O
N
N
N
L LI IS ST T
1. Wired Rmote Controller(Model：HCWA21NEWH)
1.1 Wired remote controller installation
in the grips,
1

1
1. .O OP PT TI IO ON N L LI IS ST T
Custom
Custom
Custom
Temperature measurement
unit
Celsius
to access
custom
custom
be displayed
up
custom settings mode
The method of setting the custom parameters:
2

1
1. .O OP PT TI IO ON N L LI IS ST T
enabled revised
set point
all values will
be flicking at the display, press
all values will be flicking at the display, press.
settings.
remote located at an area with
different temperature than the room
so
correction
start
an offset
3

1
1. .O OP PT TI IO ON N L LI IS ST T
all values will be flicking at the display, press.
Upper cover assembly
the
screen of
1.2Wired
pressing
UP
DOWN
setting values or to set the airflow direction.
setting value.
4

1
1. .O OP PT TI IO ON N L LI IS ST T
operation
swing
swing
revision
setting
setting
setting
once
for
available for specific
for the
Custom-setting parameters b must be configured by installer or autorized person.
Basic operation
5

1
1. .O OP PT TI IO ON N L LI IS ST T
increases
decreases
staff
reaches
increase
decrease
During the appliance in working mode
unabling
is the default setting
swing
swing swing
swing
Function set
Super mode
activated at
activate
with the working unit to activate the
Super mode
Silent mode
silent mode
operation
activate
during appliance operation
activate silent mode
6

1
1. .O OP PT TI IO ON N L LI IS ST T
With
improve comfort.
activate
be displayed activated.
will disappear
lock buttons
users setting overwrite.
disabled
activate
activate
be displayed
;
staff
staff
is displayed
perform
warning prompt.
available
actual set.
enter
7

1
1. .O OP PT TI IO ON N L LI IS ST T
Single Timer ON/OFF
activate
During
are
setting.
timer
timer
timer
value.
Holding
will appear
appears,
with the same procedure.
Single Timer ON/OFF
timer
cancellation
Single Timer ON/OFF
Single Timer ON/OFF
Single Timer ON/OFF setting
settingSingle Timer ON/OFF
Single Timer ON/OFF
Single Timer ON/OFF
cancellation
cancellation
Daily ON/OFF Timer
Single Timer ON/OFF
The Single, Daily and Weekly timer functions can not be set at the same time, if need TIMER ON/OFF work in the future time,
please use WEEKLY TIMER function.
Note:
8

1
1. .O OP PT TI IO ON N L LI IS ST T
set
setting
is displayed
SETTING
SELECTION
SELECTION
setting,
is displayed
are flickering.
selection.
setting.
selection
setting
setting
setting
setting
selected or
hour setting,
to cancel
setting.
setting.
setting.
setting is done with the same procedure as
need to.
setting,
selected
9

1
1. .O OP PT TI IO ON N L LI IS ST T
Remote controller
POWERFUL
Used to start or stop the fast cooling/heating.
(Fast cooling operates at high fan speed with
16℃ set temp. automatically; Fast heating
operates at auto fan speed with 30℃ set
temp. automatically).
3ON/OFF
The appliance will be started when it is
energized or will be stopped when it is
in operation, if you press this button.
4
The remote controller transmits signals to the system.
MODE
Press this button to select the operation mode.
1
AUTO
Used to enter fuzzy logic operation directly.
5
TIMER
Used to set or cancel the timer operation.
7
FAN
Used to select fan speed in sequence auto,
quiet low, low, medium and high.
6
SLEEP
Used to set or cancel Sleep Mode operation.
9
Used to stop or start vertical adjustment
louver swinging and set the desired left/right
airflow direction.
10 LEFT/RIGHT
adjustment
louver swinging and set the desired up/
down airflow direction.
Used to stop or start horizontal
8 UP/DOWN
Used to adjust the room temperature and
the timer.
2TEMP.
1
4
2
2
3
7
6
10
8
9
Note: ①Each mode and relevant function will be further specified in following pages.
②Heating and electric heating function are not available in single cooling only models.
③Pictures in the manual are for reference only, specifications are subject to the physical product.
Indication symbols on LCD:
Cooling indicator
Dry indicator
Fan only indicator
Heating indicator
Auto indicator
High fan speed
Medium fan speed
Low fan speed
Quiet fan speed Display set temperature
Timer ON/OFF set hour
Signal transmit
Battery indicator
Timer ON indicator
Timer OFF indicator
Button locked indicator
Auto fan speed Run indicator
Sleep indicator
Display set temp.indicator
Fan speed indicator
OFF indicator
5
11
RESET
Back to the factory defaults.
11
2.Wireless Rmote Controller (Model：HCRA31NEWH)
10

1
1. .O OP PT TI IO ON N L LI IS ST T
How to Use
To operate the room air conditioner, aim the remote controller to the signal receptor.
The remote controller will operate the air conditioner at a distance of up to 8m when pointing at signal
receptor of indoor unit.
Remote controller
How to Insert the Batteries
Remove the battery cover according to the arrow direction.
Insert new batteries making sure that the (+) and (-) of
battery are matched correctly.
Reattach the cover by sliding it back into position.
Note:
Use 2 LR03 AAA(1.5volt) batteries. Do not use rechargeable batteries.
Replace batteries with new ones of the same type when the display
becomes dim.
If the batteries are not in use for a prolonged period of time, remove the batteries from the battery
compartment to avoid the trouble.
The battery can be used for about 6 months. If the Remote Control is not operated even when placing it
near the receiver, replace 2 batteries with the new ones.
Please do not use manganese battery because it may cause mal-function.
Avoid extremely hot or cold locations such as placing it near or over a radiator, or in direct sunlight.
Also avoid placing under fluorescent light.
Do not let children play with the Remote Controller.
To avoid interference, the indoor unit and the Remote Control unit should be at least 1m away from a TV set
or a radio. In case more than two air conditioners are installed in the same room, it may interrupt individual
operation.
CAUTION
Storage and Tips for Using the Remote Controller
The remote controller may be stored mounted on a wall with a holder.
Note: The remote controller holder is an optional part.
remote controller
holder fixing.
remote controller
mounting.
Note:
you have selected.
The shape may differ from that of the remote controller holder
11

1
1. .O OP PT TI IO ON N L LI IS ST T
The operation modes changed in sequence:
The fan speed is changed in sequence:
FAN mode
Heating mode is NOT available for cooling only air conditioner.
At "FAN" mode, only "Auto" is not available.
At "DRY" mode, Fan speed is set at "AUTO” automatically, "FAN" button
is ineffective in this case.
Setting temperature
Turning on or off
AUTO , POWERFUL , TIMER and SLEEP operation modes will be specified
in the following pages.
Changing modes during operation, sometimes the unit does not response at once. Wait 3 minutes.
Wait 3 minutes before restarting the appliance.
During heating operation, air flow is not discharged at the beginning. After 2－5 minutes, the air flow will be discharged
until temperature of indoor heat exchanger rises.
16℃~30℃
Range of available set temperature
*HEATING, COOLING, DRY
unable to set
FAN
Note: Heating mode is NOT available for cooling only models.*
Press
Press button can change the unit operating status.
Result :
Result :
Press button once by once
Press button once by once
Auto High
Medium
FAN
COOL
DRY
HEAT
button
Raise temperature setting by 1℃.
Lower temperature setting by 1℃.
button Press
Result :
Result :
Low
Quiet Low
PRESS
PRESS
Operation modes
�
Selecting mode
Press MODE button cancel AUTO mode.
Note: Temperature, airflow and direction are controlled automatically in AUTO mode.
AUTO mode
How to set AUTO mode?
Press the AUTO button.
Result : Enters AUTO mode (fuzzy logic operation).
Mode and fan speed are automatically
set based on the actual room temperature.
PRESS
12

1
1. .O OP PT TI IO ON N L LI IS ST T
Your feeling
What you can do in AUTO mode?
Button Adjust
Uncomfortable because
of unsuitable air flow
volume.
Uncomfortable because
of unsuitable flow
direction.
How to cancel the AUTO mode?
Press the
Result :
Indoor fan speed alternates among Auto, Low,Medium
and High each time this button is pressed.
Press it once, the horizontal adjustment louver(vertical
adjustment louver) swings to change vertical airflow
direction(horizontal airflow direction). Press it again,
swings stops.
button.
The AUTO mode will be cancelled.
P
P
R
R
E
E
S
S
S
S
Note:
POWERFUL button is not available in AUTO mode.
POWERFUL mode
POWERFUL mode is used to start or stop fast cooling or heating only when the unit is on.
How to set POWERFUL mode?
Press POWERFUL button at the cool, dry and fan mode.
Result : At high fan speed, the set temperature
automatically to 16℃.
Press POWERFUL button at the heat mode.
Result : At high fan speed, the set temperature
automatically to 30℃.
How to cancel POWERFUL mode?
Press POWERFUL, MODE, FAN, ON/OFF button.
Result : The display return to the original mode.
In POWERFUL mode, you can set temperature, airflow direction or timer.
Escape from POWERFUL mode.
PRESS
PRESS
Timer mode
It is convenient to set the timer on with TIMER button when you go out in the morning to achieve a
comfortable room temperature at the time you get home. You can also set timer off at night to enjoy
a good sleep.
13

1
1. .O OP PT TI IO ON N L LI IS ST T
How to cancel SLEEP mode ?
Press AUTO, MODE, SLEEP, ON/OFF or FAN button.
Result : Escape from SLEEP mode.
PRESS
Note: It is similar to set TIMER OFF , you can make the appliance
switch off automatically at your desired time.
Press the or button.
Once to increase or decrease the time setting by 1 hour.
Result : and stop flashing.
When your desired time displayed on LCD, press the TIMER button and confirm it.
Result :
Press TIMER button when the unit is off.
How to cancel TIMER ON ?
Press the TIMER button.
Result : The indicator disappears, the timer on mode has been canceled.
How to set TIMER ON ?
Result : and flash on the LCD.
1.
2.
3.
PRESS
PRESS
PRESS
PRESS
SLEEP mode can be set in COOLING, HEATING or DRYING mode.
This function gives you a more comfortable environment for sleep.
The appliance will stop operation automatically after operating for 8 hours.
Fan speed is automatically set at low speed.
SLEEP mode
How to set SLEEP mode ?
Each time SLEEP button is pressed.
Result : SLEEP function will be started.
PRESS
14

1
1. .O OP PT TI IO ON N L LI IS ST T
3.IR Receiver (Model：HRBA31NEGH)
1
2
1
7
2
3
54
6
Please carefully read the Installation Manual supplied with the signal
receiver, and perform installation in accordance with these instructions
properly.
Important Notice
Parts Introduction
Install the receiver onto the wall or ceiling near the indoor unit.
Connect it with the indoor unit by the connect wire.It should be used
with the wireless remote controller.
The wireless remote controller can send commands to the wireless
receiver .Name of part is shown as follows:
2.Installation.
Indoor Unit
PCB
The connection of the connecting wire
Along the arrow
direction into the
ceiling that with
a hole punched
The Installation of the Receiver
After the Installation is completed
●Cut out a hole at the suitable place of the false ceiling with a
diameter of 95mm.
●Place the connecting wire on the false ceiling.
●Incert the connecting wire into the indoor unit .
Connect the wires with the indoor PCB.
●Connect the other terminal with the receiver, details please see
the indoor unit wiring diagram.
●Adjust the spring of the receiver and install the receiver into
the hole that have punched . After installation, the appearance as
showed in the figure below.
●Avoid installing it close to the fluorescent lamp.
1.Selecting the installation location.
Please install it in the ceiling and close to the electronic control
box of indoor unit.
The False Ceiling Signal Receiver
The False Ceiling
1 Run indicator (Red)
It lights on during operation. It lights off during SLEEP mode.
2 Emergency switch
The filter clean indicator when the switch is pressed. The unit
will stop operation if pressing the button, if pressing for more than
5s, the unit will operate in cooling mode.
3 Timer indicator (Green)
It lights on when timer is in use. It lights off when timer finishes.
4 Filter clean (Yellow)
It lights on when the filter should be cleaned.
5 Defrost indicator (Green)
It lights on during defrosting. It lights off when defrosting is
finished.
6 Buzzer
It rings when the signal from remote controller is received.
7 Infrared receiver
Receives signal from the remote controller.
3 How to Install
Sending Commands from Controller
The operation commands are sent by pressing the required operation
switch by aiming the transmitter of the controller at the receiver of the
indoor unit.
When the commands are sent correctly, the buzzer on the wireless
receiver goes off once. In case that the buzzer does not go off
although the commands are sent, the commands are not received by
the indoor unit. In such a case, sent the commands again.
Sometimes the buzzer does not be heard in case of the noise.
In some special cases, the indoor unit does not response to the
commands of the wireless remote controller. The buzzer beeps 3
times.
4 Operation
Max. permission distance up to 8m.
Signal Receiver
Wireless Remote Controller
The figures in this manual are based on the external view of a standard model.
Consequently, the shape may differ from that of the air conditioner you have selected.
It can be set or canceled by professional after-sale staff.
*
Virtual Line between
Transmitter and Receiver
15

2
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2.1Trou
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When
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How
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16

2
2. .
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H
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FALSH CONTRO
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OL：flash 300m
G
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mS(T1)，off 3000mS(T2)，after 2000mS(T3)fauult code repeat ddisplays.(as shown below)
Displlay panel
1
1
22
1
2
Run indicator (Red)
Indicates the fault code ten digital number.
Defrost indicator (Green)
Indicates the fault code singal digital number.
D E F R O S T
F I L T E R TIME
RUN EMERGENCY
212 1
T1 TT2
Fig.222 LED ALSHH CONTROL
T3
17