are added in REVISED EDITION-A.
Outdoor units PU(H)-P3,4VGAA.UK
and PU(H)-P3,4,5,6YGAA.UK
which are connected to those
indoor units are also added in it.
• Please void OC241.
• Refer to the OCT03 REVISED
EDITION-C as for control relation.
This manual does not cover outdoor units.
When serving them, please refer to
the service manual No.OC180
REVISED EDITION-A, OC261 and
this manual in a set.
-The old refrigerant and lubricating oil in the existing piping contains a large amount of chlorine which may cause the lubricating
oil of the new unit to deteriorate.
· Use “low residual oil piping”.
-If there is a large amount of residual oil (hydraulic oil, etc.) inside the piping and joints, deterioration of the lubricating oil will
result.
· Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before
brazing. (Store elbows and other joints in a plastic bag.)
-If dust, dirt, or water enters the refrigerant cycle, deterioration of the oil and compressor trouble may result.
· Use Suniso 4GS or 3GS (small amount) as the lubricating oil to coat flares and flange connection parts.
-The lubricating oil used with the air conditioner is highly hygroscopic. If it is used, water may be mixed in and deterioration
of the lubricating oil may result.
· Use liquid refrigerant to charge the system.
-If gas refrigerant is used to charge the system, the composition of the refrigerant in the cylinder will change and perfor-
mance may drop.
· Do not use a refrigerant other than R407C.
-If another refrigerant (R22, etc.) is used, the chlorine in the refrigerant may cause the lubricating oil to deteriorate.
· Use a vacuum pump with a reverse flow check valve.
-The vacuum pump oil may flow back into the refrigerant cycle and cause the lubricating oil to deteriorate.
SAFETY PRECAUTION
3
[1] Service tools
Gravimeter
Unit
Use the below service tools as exclusive tools for R407C refrigerant.
No. Tool nameSpecifications
1Gauge manifold·Only for R407C.
·Use the existing fitting SPECIFICATIONS. (UNF7/16)
·Use high-tension side pressure of 35kgf/cm2or over.
2Charge hose·Only for R407C.
·Use pressure performance of 52kgf/cm2or over.
3Electronic scale
4Gas leak detector·Use the detector for R134a or R407C.
5Adapter for reverse flow check.·Attach on vacuum pump.
6Refrigerant charge base.
7Refrigerant cylinder.·For R407C ·Top of cylinder (Brown)
·Cylinder with syphon
8Refrigerant recovery equipment.
[2] Notice on repair service
·After recovering all the refrigerant in the unit, work may be started.
·Do not release the refrigerant in the air.
·After completing the repair service, recharge the system with the specified amount of the
liquid refrigerant.
[3] Refrigerant recharging
(1) Refrigerant recharging process
Direct charging from the cylinder.
·Confirm that the cylinder is suitable for syphoning.
·Raise the cylinder and recharge the unit by syphoning liquid refrigerant.
(2) Recharge when refrigerant leakage has occurred.
·After recovering all the refrigerant in the unit, work may be started.
·Do not release the refrigerant in the air.
·After completing the repair service, recharge the system with the specified amount of
the liquid refrigerant.
electronic dry (dehumidify), automatic
and heating modes.
TEMP. button
This sets the room temperature, The
temperature setting can be performed
in 1°C units
Setting range
Cooling 19°C to 30°C
Heating 17°C to 28°C
button
This sets the current time. start
time and stop time.
button
This sets the ventilation fan
speed.
ON/OFF button
This switches between the operation
and stop modes each time it is
pressed. The lamp on this button
lights during operation.
button
This adjusts the vertical angle of the
ventilation.
FILTER button
This resets the filter cleaning indication display.
This model name of the remote controller is indicated.
button
This switches the horizontal fan
motion ON and OFF.
(Not available for this model.)
button
This sets the ventilation fan speed.
5
CHECK-TEST RUN button
Only press this button to perform an inspection check or test
operation, Do not use it for normal operation.
● Display
CENTRALLY
CONTROLLED display
This indicates when the unit is controlled by optional features such as
central control type remote controller.
CHECK display
This indicates when a malfunction
has occurred in the unit which should
be checked.
OPERATION MODE display
This indicates the operation mode.
STANDBY display
The [STANDBY] symbol is only displayed from the time the heating
operation starts until the heated air
begins to blow.
display
The current time , start time and stop
time can be displayed in ten second
intervals by pressing the time setting
button. The start time or stop time is
always displayed during the timer
operation.
display
This displays the air
direction.
In this display example on the bottom left, a condition where all display lamps light is shown for explanation purposes although this differs
from actual operation.
display
The selected fan speed is displayed.
display
The temperature of the suction air is
displayed during operation. The display range is 10° to 35°C. The display flashes 10°C when the actual
temperature is less than 10° and
flashes 35°C when the actual temperature is greater than 35°C.
Operation lamp
This lamp lights during operation,
goes off when the unit stops and
flashes when a malfunction occurs.
DEFROST display
This indicates when the defrost operation is performed.
CHECK MODE
TEST RUN
This display lights in the check mode
or when a test operation is performed.
display
display
This indicates when the continuous
operation and time operation modes
are set.
It also display the time for the timer
operation at the same time as when
it is set.
display
This displays the selected setting
temperature.
display
This lamp lights when electricity is
supplied to the unit.
Caution
● Only the display lights when the unit is stopped and power supplied to the unit.
● When power is turned ON for the first time the (CENTRAL CTRL) display appears to go off momentarily but this is not a
malfunction.
● When the central control remote control unit, which is sold separately, is used the ON-OFF button, button and
TEMP. button do not operate.
● “NOT AVAILABLE” is displayed when the button are pressed.This indicates that this room unit is not equipped
with the fan direction adjustment function and the louver function.
● When power is turned ON for the first time , it is normal that “HO” is displayed on the room temperature indication (For max.
2minutes ).
Please wait until this “HO” indication disappear than start the operation.
FILTER
This lamp lights when the filter need
to be cleaned.
display
6
PAR-20MAA
ON/OFF
CENTRALLY CONTROLLED
ERROR CODE
CLOCK
ON OFF
˚C
CHECK
CHECK MODE
FILTER
TEST RUN
FUNCTION
˚C
1Hr.
NOT AVAILABLE
STAND BY
DEFROST
FILTER
CHECK TEST
TEMP.
TIMER SET
This sets the ventilation fan speed.
VENTILATION button
Press this button to switch the cooler,
electronic dry (dehumidify), automatic
and heater modes.
OPERATION SWITCH button
This sets the room temperature. The
temperature setting can be performed
in 1: units
Setting range
Cooler 19: to 30:
Heater 17: to 28:
TEMP. ADJUSTMENT button
This switches between continuous
operation and the timer operation.
TIMER button
This switches between the operation
and stop modes each time it is pressed.
The lamp on this button lights during
operation.
ON/OFF button
Only press this button to perform an
inspection check or test operation.
Do not use it for normal operation.
CHECK-TEST RUN button
This switch the horizontal fan motion
ON and OFF.
(Not available for this model.)
LOUVER button
This adjusts the vertical angle of the
ventilation.
AIR DIRECTION button
This resets the filter service indication
display
FILTER button
This sets the current time, start time
and stop time.
trolled by optional features such as
central control type remote controller.
TIMER display
This indicates when the continuous
operation and time operation modes
are set.
It also display the time for the timer
operation at the same time as when
it is set.
OPERATION MODE display
This indicates the operation mode.
STANDBY display
The [STANDBY] symbol is only dis-
played from the time the heating
operation starts unit the heated air
begins to blow.
DEFROST display
This indicates when the defrost oper-
ation is performed.
CLOCK display
The current time , start time and stop
time can be displayed in ten second
intervals by pressing the time switch
button. The start time or stop time is
always displayed during the timer
operation.
In this display example on the bot-
tom left, a condition where all display lamps light is shown for explanation purposes although this differs
from actual operation.
AIR DIRECTION display
This displays the air direction.
AIR SPEED display
The selected fan speed is displayed.
ROOM TEMPERATURE display
The temperature of the suction air
is displayed during operation. The
display range is 8°C to 39°C. The
display flashes 8°C when the actual
temperature is less than 8°C and
flashes 39°C when the actual temperature is greater than 39°C.
Operation lamp
This lamp lights during operation,
goes off when the unit stops and
flashes when a malfunction occurs.
This display lights in the check mode
or when a test operation is performed.
CHECK MODE
TEST RUN
display
FILTER display
CHECK display
This indicates when a malfunction
has occurred in the unit which should
be checked.
SET TEMPERATURE display
This displays the selected setting
temperature.
Caution
● Only the Power display lights when the unit is stopped and power supplied to the unit.
● When the central control remote control unit, which is sold separately, is used the ON-OFF button, operation switch button
and TEMP. adjustment button do not operate.
● “NOT AVAILABLE” is displayed when the Air speed button are pressed.This indicates that this room unit is not equipped
with the fan direction adjustment function and the louver function.
● When power is turned ON for the first time, it is normal that “H0” is displayed on the room temperature indication (For max.
2minutes). Please wait until this “H0” indication disappear then start the operation.
POWER display
This lamp lights when electricity is
supplied to the unit.
This lamp lights when the filter need
to be cleaned.
Lights up while transmission to the indoor unit
is mode using switches.
display
OPERATION MODE display
Operation mode display indicates which operation mode is in effect.
• FUNCTION
Lights up when function are set.
display
• TEST RUN • CHECK display
CHECK&TEST RUN display indicates that the
unit is being checked or test-run.
display
Displays when batteries are dead.
display
ADDRESS display
Displays the refrigerant address.
UNIT NO. display
Displays the number of unit..
FUNCTION NO. display
Displays the mode.
SELECTION NO. display
Displays the selection number..
display
SET TEMP. display indicates desired temperature set.
CLOCK display
DIsplays the current time.
“ ”display
Flashes when the current time is displayed.
TIMER display
Displays when in timer operation or when setting timer.
➡
“ ” “ ” display
➡
Displays the order of timer operation.
“ ” “ ” display
Displays whether timer is on or off.
The vertical direction of airflow is indicated.
display
FAN SPEED display indicates which fan
speed has been selected.
display
The unit is turned ON and OFF alternately
each time the button is pressed.
● When cover is open.
MODE SELECT button
Used to switch the operation mode between
cooling , drying , blowing , heating and auto
mode.
FAN SPEED SELECT button
Used to change the fan speed.
VANE CONTROL button
Used to change the airflow direction.
▼
“ ” “ ” display
Displays when the current time and the timer
time can be changed.
▼
TEMP. button
SET TEMPERATURE button sets any desired
room temperature.
TIMER CONTROL buttons
STOP (OFF timer): when this switch is set,
the air conditioner will be automatically
stopped at the preset time.
START(ON timer): when this switch is set, the
air conditioner will be automatically started at
the preset time.
HR. and MIN.buttons
Buttons used to set the “hour and minute” of
the current time and timer settings.
The unit is turned ON and OFF alternately
each time the button is pressed.
LOUVER button
This switch the horizontal fan motion ON
and OFF.
(Not available for this model.)
MODE SELECT button
Used to switch the operation mode between
cooling, drying, blowing, heating and auto
mode.
CHECK-TEST RUN button
Only press this button to perform an inspection check or test operation.
Do not use it for normal operation.
FAN SPEED SELECT button
Used to change the fan speed.
TIMER display
Displays when in timer operation or when
setting timer.
button
SET TEMPERATURE button sets any desired
room temperature.
CLOCK display
Displays the current time.
“ ” “ ” display
Displays the order of timer operation.
“ ” “ ” display
Displays whether timer is on or off.
w In case the outdoor unit is cool only type,
the heating mode is not available.
Buttons used to set the “hour and minute” of
the current time and timer settings.
h and min buttons
display
SET TEMP. display indicates desired temperature set.
display
FAN SPEED display indicates which fan
speed has been selected.
display
The vertical direction of air flow is indicated.
display
Blinks when model is selected.
display
Lights up while transmission to the indoor
unit is mode using switches.
display
CHECK&TEST RUN display indicates that
the unit is being checked or test-run.
display
OPERATION MODE display
Operation mode display indicates which operation mode is in effect.
TIMER CONTROL buttons
AUTO STOP (OFF timer): when this switch
is set, the air conditioner will be automatically stopped at the preset time.
AUTO START (ON timer): when this switch
is set, the air conditioner will be automatically started at the preset time.