Panasonic U-72MF1U9 User manual

Outdoor Units
Refrigerant R410A is used in the outdoor units.
9672Class
Model Name U-72MF1U9
U-96MF1U9
85464849302000
REFERENCE NO. SM830202-00
Indoor Units
3WAY VRF SYSTEM
U-72MF1U9
U-96MF1U9
U-72MF1U9E
U-96MF1U9E
*
*
* Salt-Air Damage Resistant Specifications.
** Necessary to install the External Electronic Expansion Valve Kit (Optional:CZ-P56SVK1U).
U-96MF1U9E*U-72MF1U9E*
TEST RUN SERVICE MANUAL
Model No.
Class 9 12 15 18 2419 36 54487
S-07MD1U6
S-07MF1U6
S-07MM1U6
S-07MK1U6
S-07MP1U6
S-07MR1U6
S-09MD1U6
S-09MF1U6
S-09MM1U6
S-09MK1U6
S-09MP1U6
S-09MR1U6
S-12MU1U6
S-12MY1U6
S-12MD1U6
S-12MF1U6
S-12MM1U6
S-12MT1U6
S-12MK1U6
S-12MP1U6
S-12MR1U6
S-15MF1U6
S-15MM1U6
S-15MP1U6
S-15MR1U6
S-18MU1U6
S-18MY1U6
S-18MF1U6
S-18MM1U6
S-18MT1U6
S-18MK1U6
S-18MP1U6
S-18MR1U6
S-24MU1U6
S-24MF1U6
S-24MT1U6
S-24MK1U6
S-24MP1U6
S-24MR1U6
S-36MU1U6
S-36MF1U6
S-36ME1U6
S-48MF1U6
S-48ME1U6
S-54MF1U6
TENTATIVE
M1
Y1
F1
U1
D1
T1
E1
P1
R1
K1
S-19MS1U6**
4-Way Cassette
1-Way Cassette
Low Silhouette Ducted
Ceiling
Wall Mounted
Concealed Floor
Standing
Floor Standing
4-Way Cassette 60×60
Slim Low Static Ducted
High Static Pressure
Ducted
1
2
3
4
5
6
7
8
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Please Read Before Starting
This air conditioning system meets strict safety and operat-
ing standards. As the installer or service person, it is an
important part of your job to install or service the system so
it operates safely and efficiently.
Carefully read this instruction booklet before beginning.
Follow each installation or repair step exactly as shown.
Observe all local, state, and national electrical codes.
This symbol refers to a hazard or
unsafe practice which can result
in personal injury or product or
property damage.
In Case of Improper Installation
When Wiring
ELECTRICAL SHOCK CAN CAUS
SEVERE PERSONAL INJURY OR DEATH.
ONLY A QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD ATTEMPT TO
WIRE THIS SYSTEM.
E
• Do not supply power to the unit until all wiring and tubing
are completed or reconnected and checked.
• Highly dangerous electrical voltages are used in this sys-
tem. Carefully refer to the wiring diagram and these
instructions when wiring. Improper connections and inad-
equate grounding can cause accidental injury or death.
•
When Installing…
…In a Room
Properly insulate any tubing run inside a room to preven
“sweating” that can cause dripping and water damage to
walls and floors.
t
…In Moist or Uneven Locations
…
…In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher
than drifting snow. Provide snow vents.
•
• Keep all tubing runs as short as possible.
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of
the flare and union tubes before connecting them, then
tighten the nut with a torque wrench for a leak-free con-
nection.
• Check carefully for leaks before starting the test run.
When Servicing
•
• Keep your fingers and clothing away from any moving
parts.
•
•
• Confirm after installation that no refrigerant gas is leak-
ing. If the gas comes in contact with a burning stove,
gas water heater, electric room heater or other heat
source, it can cause the generation of poisonous gas.
IMPORTANT!
For safe installation and trouble-free operation, you must:
Pay close attention to all warning and caution notices
given in this manual.
This symbol refers to a hazard or
unsafe practice which can result
in severe personal injury or death.
WARNING
CAUTION
If Necessary, Get Help
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for a
special problem, contact our sales/service outlet or your
certified dealer for additional instructions.
The manufacturer shall in no way be responsible for
improper installation or maintenance service, including fail-
ure to follow the instructions in this document.
SPECIAL PRECAUTIONS
WARNING
Ground the unit following local electrical codes.
Connect all wiring tightly. Loose wiring may cause over-
heating at connection points and a possible fire hazard.
When Transporting
Be careful when picking up and moving the indoor and outdoor
units. Get a partner to help, and bend your knees when lifting
to reduce strain on your back. Sharp edges or thin aluminum
fins on the air conditioner can cut your fingers.
Use a raised concrete pad or concrete blocks to provide a
solid, level foundation for the outdoor unit. This prevents
water damage and abnormal vibration.
In an Area with High Winds
Securely anchor the outdoor unit down with bolts and a
metal frame. Provide a suitable air baffle.
When Connecting Refrigerant Tubing
Ventilate the room well, in the event that is refrigerant
gas leaks during the installation. Be careful not to allow
contact of the refrigerant gas with a flame as this will
cause the generation of poisonous gas.
Turn the power OFF at the main power box (mains)
before opening the unit to check or repair electrical parts
and wiring.
Clean up the site after you finish, remembering to check
that no metal scraps or bits of wiring have been left
inside the unit being serviced.
CAUTION
Ventilate any enclosed areas when installing or testing
the refrigeration system. Escaped refrigerant gas, on
contact with fire or heat, can produce dangerously toxic
gas.
•
•
•
•
•
i
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Check of Density Limit
The room in which the air conditioner is to be
installed requires a design that in the event of refrig-
erant gas leaking out, its density will not exceed a set
limit.
The refrigerant (R410A), which is used in the aircondition-
er, is safe, without the toxicity or combustibility of ammonia,
and is not restricted by laws imposed to protect the ozone
layer. However, since it contains more than air, it poses the
risk of suffocation if its density should rise excessively. Suf-
focation from leakage of refrigerant is almost non-existent.
With the recent increase in the number of high density
buildings, however, the installation of multi air conditioner
systems is on the increase because of the need fo reffec-
tive use off loor space, individual control, energy conserva-
tion by curtailing heat and carrying power, etc.
Most importantly, the multi air conditioner system is able
to replenish a large amount of refrigerant compared to
conventional individual air conditioners. If a single unit of
the multi air conditioner system is to be installed in a
small room, select a suitable model and installation pro-
cedure so that if the refrigerant accidentally leaks out, its
density does not reach the limit (and in the event of an
emergency, measures can be made before injury can
occur).
ASHRAE and the International Mechanical Code of the
ICC as well as CSA provide guidance and define safe-
guards related to the use of refrigerants, all of which define
a Refrigerant Concentration Level (RCL) of 25 pounds
per 1,000 cubic feet for R410A refrigerant.
For additional guidance and precautions related to
refrigerant safety, please refer to the following documents:
International Mechanical Code 2009 (IMC-2009)
(or more recently revised)
ASHRAE 15
ASHRAE 34
ii
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Section 1: TEST RUN..............................................................................................................1-1
1. Test Run...........................................................................................................1-2
2. Setting of Unit Control PCB .............................................................................1-4
3. Auto Address Setting .......................................................................................1-6
4. Remote Controller Test Run Settings.............................................................1-12
5. Caution for Pump Down.................................................................................1-13
6. Meaning of Alarm Messages .........................................................................1-14
Section 2: REMOTE CONTROL FUNCTIONS........................................................................2-1
1. Main Operating Functions................................................................................2-2
2. Wireless Remote Controller.............................................................................2-4
3. Timer Remote Controller................................................................................2-15
Section 3: TROUBLE DIAGNOSIS .........................................................................................3-1
1. Contents of Remote Controller Switch Alarm Display......................................3-2
2. Outdoor Unit Control PCB LED Display...........................................................3-4
3. W-3WAY VRF Alarm Codes.............................................................................3-5
4. Blinking (Inspection) Display on the Remote Controller ............................3-26
Section 4: PCB AND FUNCTIONS .........................................................................................4-1
1. Outdoor Unit Control PCB................................................................................4-2
2. Indoor Unit Control PCB ..................................................................................4-7
Section 5: SELF-DIAGNOSIS FUNCTION TABLE .................................................................5-1
1. Self-Diagnosis Function Table..........................................................................5-2
Section 6: SERVICE CHECKER .............................................................................................6-1
1. Outdoor Unit Maintenance Remote Controller.................................................6-2
Contents
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1- 1
Test Run
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Contents
1. TEST RUN
1. Test Run...............................................................................................................................1-2
1-1. Preparing for Test Run...................................................................................................1-2
1-2. Test Run Procedure.......................................................................................................1-3
2. Setting of Unit Control PCB...............................................................................................1-4
2-1. Main Outdoor Unit PCB Setting.....................................................................................1-4
3. Auto Address Setting .........................................................................................................1-6
3-1. Auto Address Setting.....................................................................................................1-6
4. Remote Controller Test Run Settings .............................................................................1-12
5. Caution for Pump Down...................................................................................................1-13
6. Meaning of Alarm Messages ...........................................................................................1-14
TENTATIVE
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1- 2
Test Run
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1. Test Run
1-1. Preparing for Test Run
Before attempting to start the air conditioner, check the fol-
lowing.
(1) All loose matter is removed from the cabinet, especially
steel filings, bits of wire, and clips.
(2) The control wiring is correctly connected and all electrical
connections are tight.
(3) The protective spacers for the compressor used for trans-
portation have been removed. If not, remove them now.
(4) The transportation pads for the indoor fan have been
removed. If not, remove them now.
(5) The power has been connected to the unit for at least 5
hours before starting the compressor. The bottom of the
compressor should be warm to the touch and the crank-
case heater around the feet of the compressor should be
hot to the touch.
(6) Both the gas and liquid tube service valves are open. If
not, open them now.
(7) Request that the customer be present for the trial run.
Explain the contents of the instruction manual, then have
the customer actually operate the system.
(8) Be sure to give the instruction manual and warranty cer-
tificate to the customer.
(9) When replacing the control PCB, be sure to make all the
same settings on the new PCB as were in use before
replacement.
The existing EEP ROM is not changed, and is connected
to the new control PCB.
z
Power mains switch
(Power must be turned ON
at least 5 hours before
attempting test run)
ON
Balance tube
Liquid tube
Discharge tube Suction tube
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1- 3
Test Run
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2
3
4
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8
1. Test Run
YES
Make necessary corrections.
Check the alarm
contents.
Check the alarm contents.
Turn OFF the indoor and
outdoor unit power.
NO
YES
NO
*1
*2
*3 *3
*2
CASE 1
CASE 2
CASE 3B CASE 3A
YES
YES
NO
YES
NO
NO
NO
YES
YES
NO
Recheck the items to check before the test run.
Have the outdoor sub units been connected?
Are the inter-unit control wires
connected to more than 1 refrigerant
system?
Is it possible to turn ON the power only
for the 1 refrigerant system where the
test run will be performed?
Will automatic address setting be
performed in Heating mode?
Is it OK to start the compressors?
Turn ON the indoor and
outdoor unit power.
Short-circuit the mode change pin
(CN101) on the outdoor main unit PCB.
At the same time, short-circuit the
automatic address pin (CN100) for 1
second or longer, then release it.
Short-circuit the automatic address
pin (CN100) on the outdoor main
unit PCB for 1 second or longer,
then release it.
Short-circuit the automatic address pin (CN100)
on the outdoor main unit PCB for 1 second or
longer, then release it.
Start indoor and outdoor unit
cooling operation.
LED 1 and 2 blink alternately.
Start indoor and outdoor unit
heating operation.
LED 1 and 2 blink alternately.
LED 1 and 2 blink alternately
(about 2 or 3 minutes).
Is it OK to start the compressors?
Turn ON the indoor and
outdoor unit power.
Turn OFF the indoor
and outdoor unit
Turn ON the indoor and
outdoor unit power for that
refrigerant system only.
Are LED 1 and 2 on the
outdoor unit PCB OFF?
Are LED 1 and 2 on the
outdoor unit PCB OFF?
Set the unit address.
Set the No. of outdoor units.
Set the No. of indoor units.
Set the system address.
When multiple outdoor main units exist, disconnect the terminals
extended from the shorted plugs (CN003) at all outdoor main unit
PCBs except for 1.
Alternatively, move the sockets to the OPEN side.
<Outdoor unit control PCB>
Unit No. setting switch
(S007)
<Outdoor unit control PCB>
Unit No. setting switch
(S006)
<Outdoor unit control PCB>
Unit No. setting switch
(S004 and S005)
<Outdoor unit control PCB>
Unit No. setting switch
(S002 and S003)
(Check the link wiring.)
*1
The unit with the unit
No. set to 1 is the
main unit. All other
units are sub units.
Note: It is not necessary to remove
the socket that is used to short-
circuit the terminal plugs from
the outdoor sub unit PCBs.
Refer to "Table of Self-
Diagnostic Functions and
Description of Alarm Displays."
*2 A minimum of 5 hours must have passed after the
power was turned ON to the outdoor unit.
*3 All indoor units operate in all refrigerant systems
where the power is ON.
Check that test run preparation is OK.
(Do not allow the short-circuited pins to remain short-circuited.)
Refer to the remote
controller test-run
settings.
Set the wired remote controller for test run.
Does system operate?
Return remote control to normal mode
Check and make corrections according to
"Table of Self-Diagnostic Functions."
End test run.
Make necessary
corrections
1-2. Test Run Procedure
Items to Check Before the Test Run
1. Turn the remote power switch on at least 5 hours before the test,
in order to energize the crankcase heater.
2. After performing the leak inspection, applying vacuum, and per-
forming refrigerant charge for the tubing which is connected on-
site, fully open the outdoor unit service valve. However if only one
outdoor unit is installed, a balance tube is not used. Therefore,
leave the valve fully closed.
3. When replacing the control PCB, be sure that the settings on the
new PCB match those on the old PCB.
4. Use caution when making the settings. If there are duplicated
system addresses, or if the settings for the Nos. of the indoor
units are not consistent, an alarm will occur and the system will
not start.
5. These settings are not made on the indoor unit PCB.
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1- 4
Test Run
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2. Setting of Unit Control PCB
2-1. Main Outdoor Unit PCB Setting
S003
CN100
CN101
CN003
S002
S004
S005
S006S007
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Test Run
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2. Setting of Unit Control PCB
Examples of the No. of indoor units settings (S005, S004)
z
2
3 2
1
ON
1
ON
ON
3
12 3
21
ON
3
1
1
1
1
1
ON
123
ON
123
ON
123
ON
123
2
1
ON
2
1
ON
ON
12
2
1
ON
1
1
0
0
ON
123
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
3 21
ON
ON
12 3
ON
OFF
ON
OFF
No. of indoor units
System address No.
Indoor unit setting (S005)
(3P DIP switch, blue) Indoor unit setting (S004)
(Rotary switch, red)
System address (S003)
(2P DIP switch, blue) System address (S002)
(Rotary switch, black)
System 1 (factory setting)
1 unit (factory setting)
11 units
21 units
31 units
All OFF
No. of outdoor units
Outdoor unit setting (S006)
(3P DIP switch, blue)
Address setting of outdoor unit (S007)
(3P DIP switch, blue)
1 unit (factory setting)
1 ON
2 units 2 ON
3 units 1 & 2 ON
Unit No. setting
Address setting of outdoor unit (S007)
(3P DIP switch, blue)
Unit No. 2 (sub unit)
(factory setting)
Unit No. 3 (sub unit)
2 ON
1 & 2 ON
1 ON
2 ON
3 ON
1 & 3 ON
Set to 1
Set to 1
Set to 1
Set to 1
Set to 0
Set to 1
Set to 1
Set to 1
Set to 0
40 units
System 11
System 21
System 30
Both OFF
1 ON
2 ON
1 & 2 ON
Unit No. 1 (main unit)
(factory setting)
Unit No. setting
10 20 30
10 20
Examples of refrigerant circuit (R.C.) address settings (required when link wiring is used) (S003, S002)
z
Examples of the No. of outdoor units settings (S006)
z
Address setting of main outdoor unit (S007)
z
Address setting of sub outdoor unit
z
The sub unit control PCB contains the same switches as the main unit control PCB for No. of indoor units, No. of outdoor units,
and system address. However it is not necessary to set these switches.
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1- 6
Test Run
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3. Auto Address Setting
3-1. Auto Address Setting
Basic wiring diagram: Example (1)
• If link wiring is not used (The inter-unit control wires are not connected to multiple refrigerant systems.)
Indoor unit addresses can be set without operating the compressors.
ON
1 2 33
2 1
ON
1
ON
3 2
ON
1
2
2
ON
1
3
3
2
1
ON ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
(S006) (S007)
(S005)
(S004)
(S003)(S002)
0
1
1-1 1-2 1-3 1-10
No. 1 (main outdoor unit)
settings
No. 2 (sub unit)
Unit
No. 2
(Sub)
Unit
No. 3
(Sub)
Unit
No. 1
(Main)
No. 3 (sub unit)
Outdoor main/sub
control wiring
Outdoor Unit
Indoor Unit
Remote controller
Outdoor main/sub
control wiring
Inter-unit control wiring
Remote controller
cross-over wiring
(S007)
ON
OFF
(S007)
System address
(system 1 setting)
No. of indoor units
(10 units setting)
No. of
outdoor
units (3 units
setting)
Unit number
setting
(Unit No. 1)
Unit
number
setting
(Unit No. 2)
Unit
number
setting
(Unit No. 3)
Leave the socket that
is used to short-circuit
the terminal plug.
(CN003)
Case 1
(1) Automatic Address Setting from the Outdoor Unit
1. To set the number of outdoor units, on the outdoor main unit control PCB set the No. of outdoor units DIP switch (S006) to
ON
OFF
ON
1 2 3
(3 units), and set the unit No. DIP switch (S007) to
2 3
ON
1
(unit No. 1 - main outdoor unit).
2. On the No. 2 (sub) unit control PCB, set the unit No. switch (S007) to
3 2 1
ON
(unit No. 2).
On the No. 3 (sub) unit control PCB, set the unit No. switch (S007) to
ON
1 2 3
(unit No. 3).
3. On the outdoor main unit control PCB, check that the system address rotary switch (S002) is set to “1” and that the DIP
switch (S003) is set to
ON ON
OFF
1 2
“0.” (These are the settings at the time of factory shipment.)
4. To set the number of indoor units that are connected to the outdoor unit to 10, on the outdoor main unit control PCB set the
No. of indoor units DIP switch (S005) to
ON
OFF
2 3
ON
1
“1.” and set the rotary switch (S004) to “0.”
5. Turn ON the power to the indoor and outdoor units.
6. On the outdoor main unit control PCB, short-circuit the automatic address pin (CN100) for 1 second or longer, then release it.
(Communication for automatic address setting begins.)
* To cancel, again short-circuit the automatic address pin (CN100) for 1 second or longer, then release it.
The LED that indicates that automatic address setting is in progress turns OFF and the process is stopped.
Be sure to perform automatic address setting again.
(Automatic address setting is completed when LEDs 1 and 2 on the outdoor main unit control PCB turn OFF.)
7. Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote controller, perform steps 1 to 5, then use the remote controller and
complete automatic address setting.
Refer to “Automatic Address Setting from the Remote Controller.”
z
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Test Run
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3. Auto Address Setting
1-1 1-2
2-1 2-2 2-9
1-3 1-13
2
9
2 1
ON
3
ON
1 2 3
ON
1 2 3
3
2
1
ON
ON
1 2 3
ON
1 2
2
ON
1
3
1
1
ON
3 2
ON
1
2
2
ON
1
3
3
2
1
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF OFF
ON
Automatic address setting in Heating mode
Automatic address setting in Cooling mode
Leave the socket that
is used to short-circuit
the terminal plug.
(CN003)
To other system
link wiring
· Indoor and outdoor unit power can be turned ON for each system separately.
Case 3A
Case 2
Case 3B
Make settings as appropriate for the cases listed below.
(Refer to the instructions on the following pages.)
Move the socket to
the
“ OPEN ” side
(CN003).
(S006) (S007)
(S005)
(S004)
(S003)(S002)
No. 1 (main outdoor unit) settings
No. 2 (sub unit)
Unit
No. 2
(Sub)
Unit
No. 3
(Sub)
Unit
No. 1
(Main)
Outdoor unit
system 1
Unit
No. 2
(Sub)
Unit
No. 1
(Main)
Outdoor unit
Indoor unit
Remote
controller
Indoor unit
Remote
controller
Outdoor main/sub
control wiring
Outdoor main/sub control wiring
Inter-unit control wiring
Inter-unit control wiring
Remote controller
communication wiring
Remote controller
cross-over wiring
(S007)
No. 2 (sub unit) settings
(S007)
No. 3 (sub unit)
(S007)
(S006) (S007)
(S005)
(S004)
(S003)(S002)
No. 1 (main unit) settings
System address
(system 1 setting)
System address
(system 2 setting)
No. of indoor units
(13 units setting)
No. of indoor units
(9 units setting)
No. of
outdoor
units (2 units
setting)
No. of
outdoor units
(3 units
setting)
Unit
number
setting
(unit No. 1)
Unit
number
setting
(unit No. 2)
Unit
number
setting
(unit No. 3)
Unit
number
setting
(unit No. 2)
Unit
number
setting
(unit No. 1)
system 2
· Indoor and outdoor unit power cannot be turned ON for each system separately.
No. 2
Refrigerant
circuit
Basic wiring diagram: Example (2)
• If link wiring is used * When multiple outdoor main units exist, remove the socket that is
used to short-circuit the terminal plug (CN003) from all outdoor
main unit PCBs except for one unit.
Alternatively, move the sockets to the “OPEN” side.
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3. Auto Address Setting
Case 2 Automatic Address Setting (no compressor operation)
Indoor and outdoor unit power can be turned ON for each system separately.
Indoor unit addresses can be set without operating the compressors.
Automatic Address Setting from Outdoor Unit
1. On the No. 1 (main) unit control PCB, set the unit No. switch (S007) to
2 3
ON
1
(unit No. 1).
On the No. 2 (sub) unit control PCB, set the unit No. switch (S007) to
3 2 1
ON
(unit No. 2).
On the No. 3 (sub) unit control PCB, set the unit No. switch (S007) to
3 2 1
ON
(unit No. 3).
2. To set the number of outdoor units on the outdoor main unit control PCB, set the No. of outdoor units DIP switch (S006) to
ON
OFF
ON
1 2 3
(3 units).
3. On the outdoor main unit control PCB, check that the system address rotary switch (S002) is set to “1” and that the DIP
switch (S003) is set to “0”
ON ON
OFF
1 2
. (These are the settings at the time of factory shipment.)
4. To set the number of indoor units that are connected to the outdoor unit to 13, on the outdoor main unit control PCB set the
No. of indoor units DIP switch (S005) to “1”
ON
OFF
2 3
ON
1
, and set the rotary switch (S004) to “3.”
5. Turn on power to all indoor and outdoor units in the system.
6. Short-circuit the automatic address pin at the outdoor main unit (CN100) for 1 second or longer, then release it.
(Communication for automatic address setting begins.)
* To cancel, again short-circuit the automatic address pin (CN100) for 1 second or longer, then release it.
The LED that indicates automatic address setting is in progress turns OFF and the process is stopped.
Be sure to perform automatic address setting again.
(Automatic address setting is completed when LEDs 1 and 2 on the outdoor main unit control PCB turn OFF.)
7. Next turn the power ON only for the indoor and outdoor units of the next (different) system. Repeat steps 1 - 5 in the same
way to complete automatic address settings for all systems.
8. Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote controller, perform steps 1 - 5, then use the remote controller and
complete automatic address setting.
Refer to “Automatic Address Setting from Remote Controller.”
z
z
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3. Auto Address Setting
Case 3A Automatic Address Setting in Heating Mode
Indoor and outdoor unit power cannot be turned ON for each system separately.
In the following, automatic setting of indoor unit addresses is not possible if the compressors are not operating.
Therefore perform this process only after completing all refrigerant tubing work.
Automatic Address Setting from Outdoor Unit
1. Perform steps 1 - 4 in the same way as for Case 2 .
5. Turn the indoor and outdoor unit power ON at all systems.
6. To perform automatic address setting in Heating mode , on the outdoor main unit control PCB in the refrigerant system
where you wish to set the addresses, short-circuit the automatic address pin (CN100) for 1 second or longer, then release
it. (Be sure to perform this process for one system at a time. Automatic address settings cannot be performed for more than
one system at the same time.)
(Communication for automatic address setting begins, the compressors turn ON, and automatic address setting in Heating
mode begins.)
(All indoor units operate.)
* To cancel, again short-circuit the automatic address pin (CN100) for 1 second or longer, then release it. The
LED that indicates automatic address setting is in progress turns OFF and the process is stopped. Be sure to
perform automatic address setting again.
(Automatic address setting is completed when the compressors stop and LED 1 and 2 on the main unit control PCB turn
OFF.)
7. At the outdoor main unit in the next (different) system, short-circuit the automatic address pin (CN100) for 1 second or
longer, then release it.
(Repeat the same steps to complete automatic address setting for all units.)
8. Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote controller, perform steps 1 - 5, then use the remote controller and
to complete automatic address setting.
Refer to “Automatic Address Setting from Remote Controller.”
z
z
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3. Auto Address Setting
Case 3B Automatic Address Setting in Cooling Mode
Indoor and outdoor unit power cannot be turned ON for each system separately. In the following, automatic setting of indoor
unit addresses is not possible if the compressors are not operating. Therefore perform this process only after completing all
refrigerant tubing work.
Automatic address setting can be performed during Cooling operation.
Automatic Address Setting from Outdoor Unit
1. Perform steps 1 - 4 in the same way as for Case 2 .
5. Turn the indoor and outdoor unit power ON at all systems.
6. To perform automatic address setting in Cooling mode , on the outdoor main unit control PCB in the refrigerant system
where you wish to set the addresses, short-circuit the mode change 2P pin (CN101). At the same time, short-circuit the
automatic address pin (CN100) for 1 second or longer, then release it. (Be sure to perform this process for one system at a
time. Automatic address settings cannot be performed for more than one system at the same time.)
(Communication for automatic address setting begins, the compressors turn ON, and automatic address setting in Cooling
mode begins.)
(All indoor units operate.)
* To cancel, again short-circuit the automatic address pin (CN100) for 1 second or longer, then release it. The
LED that indicates automatic address setting is in progress turns OFF and the process is stopped. Be sure to
perform automatic address setting again.
(Automatic address setting is completed when the compressors stop and LED 1 and 2 on the outdoor main unit control PCB
turn OFF.)
7. At the outdoor main unit in the next (different) system, short-circuit the automatic address pin (CN100) for 1 second or
longer, then release it.
(Repeat the same steps to complete automatic address setting for all units.)
8. Operation from the remote controllers is now possible.
* Automatic address setting in Cooling mode cannot be done from the remote controller.
Automatic Address Setting* from the Remote Controller
Selecting each refrigerant system individually for automatic address setting
---Automatic address setting for each system: Item code “A1.”
1. Press the remote controller timer time button and button at the same
time.
(Press and hold for 4 seconds or longer.)
2. Next, press either the temperature setting or button. (Check that
the item code is “A1.”)
3. Use either the or button to set the system No. to perform auto-
matic address setting.
4. Then press the button.
(Automatic address setting for one refrigerant system begins.)
(When automatic address setting for one system is completed, the system returns
to normal stopped status.) <Approximately 4 - 5 minutes is required.>
(During automatic address setting, “NOW SETTING” is displayed on the remote
controller. This message disappears when automatic address setting is completed.)
5. Repeat the same steps to perform automatic address setting for each successive system.
z
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3. Auto Address Setting
Display during automatic address setting
On outdoor main unit PCB
LED 1
2
Blink alternatel
y
* Do not short-circuit the automatic address setting pin (CN100) again while automatic address setting is in
progress. Doing so will cancel the setting operation and will cause LED 1 and 2 to turn OFF.
* When automatic address setting has been successfully completed, both LED 1 and 2 turn OFF.
* LED 1 is D72. LED 2 is D75.
* If automatic address setting is not completed successfully, refer to the table below and correct the problem. Then perform
automatic address setting again.
Display of LED 1 and 2 on the outdoor unit control PCB
( : ON : Blinking :OFF)
LED1 LED2 Display meaning
After the power is turned ON (and automatic address setting is not in progress), no communication with the indoor
units in that system is possible.
After the power is turned ON (and automatic address setting is not in progress), 1 or more indoor units are
confirmed in that system; however, the number of indoor units does not match the number that was set.
Automatic address setting is in progress.
Alternating
Automatic address setting completed.
At time of automatic address setting, the number of indoor units did not match the number that was set.
“ ”(when indoor units are operating) indication appears on the display.
Simultaneous
Refer to “Table of Self-Diagnostic Functions and Description of Alarm Displays.”
Alternating
NOTE
“ ” indicates that the solenoid is fused or that there is a CT detection current failure (current is detected when the
compressor is OFF).
Remote controller display
z
z
z
is blinking
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4. Remote Controller Test Run Settings
Request concerning recording the indoor/outdoor unit combination Nos.
After automatic address setting has been completed, be sure to record them for future reference.
List the outdoor main unit system address and the addresses of the indoor units in that system in an easily visible location (next
to the nameplate), using a permanent marking pen or similar means that cannot be abraded easily.
Example: (Outdoor) 1 - (Indoor) 1-1, 1-2, 1-3… (Outdoor) 2 - (Indoor) 2-1, 2-2, 2-3…
These numbers are necessary for later maintenance. Please be sure to indicate them.
Checking the indoor unit addresses
Use the remote controller to check the indoor unit address.
<If 1 indoor unit is connected to 1 remote controller>
1. Press and hold the button and button for 4 seconds or longer (simple settings mode).
2. The address is displayed for the indoor unit that is connected to the remote controller.
(Only the address of the indoor unit that is connected to the remote controller can be checked.)
3. Press the button again to return to normal remote controller mode.
<If multiple indoor units are connected to 1 remote controller (group control)>
1. Press and hold the button and button for 4 seconds or longer (simple settings mode).
2. “ALL” is displayed on the remote controller.
3. Next, press the button.
4. The address is displayed for 1 of the indoor units which is connected to the remote controller. Check that the fan of that
indoor unit starts and that air is discharged.
5. Press the button again and check the address of each indoor unit in sequence.
6. Press the button again to return to normal remote controller mode.
4. Remote Controller Test Run Settings
1. Press the remote controller button for 4 seconds or longer. Then press the button.
“TEST RUN” appears on the LCD display while the test run is in progress.
The temperature cannot be adjusted when in Test Run mode.
(This mode places a heavy load on the machines. Therefore use it only when performing the test run.)
2. The test run can be performed using the HEAT, COOL, or FAN operation modes.
NOTE
The outdoor units will not operate for approximately 3 minutes after the power is turned ON and after operation is stopped.
3. If correct operation is not possible, a code is displayed on the remote controller LCD display.
(Refer to “Table of Self-Diagnostic Functions” and correct the problem.)
4. After the test run is completed, press the button again. Check that “TEST RUN” disappears from the LCD display. (To
prevent continuous test runs, this remote controller includes a timer function that cancels the test run after 60 minutes.)
* If the test run is performed using the wired remote controller, operation is possible even if the cassette-type ceiling panel has
not been installed. (“P09” display does not occur.)
Number changes to indicate which indoor unit is currently selected.
3. Auto Address Setting
SM830202-003WAYVRF.indb12SM830202-003WAYVRF.indb12 2012/01/3014:52:352012/01/3014:52:35

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5. Caution for Pump Down
5. Caution for Pump Down
Pump down means refrigerant gas in the system is returned to the outdoor unit. Pump down is used when the unit is to be
moved, or before servicing the refrigerant circuit.
This outdoor unit cannot collect more
than the rated refrigerant amount as
shown by the nameplate on the back.
If the amount of refrigerant is more
than that recommended, do not
conduct pump down. In this case use
another refrigerant collecting system.
CAUTION
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6. Meaning of Alarm Messages
6. Meaning of Alarm Messages
Table of Self-Diagnostics Functions and Description of Alarm Displays
Alarm messages are indicated by the blinking of LED 1 and 2 (D72, D75) on the outdoor unit PCB. They are also displayed on
the wired remote controller.
Viewing the LED 1 and 2 (D72 and D75) alarm displays
LED1 LED2 Alarm contents
Alarm Display
LED 1 blinks M times, then LED 2 blinks N times. The cycle then repeats.
M = 2: P alarm 3: H alarm 4: E alarm 5: F alarm 6: L alarm
N = Alarm No.
Example: LED 1 blinks 2 times, then LED 2 blinks 17 times. The cycle then repeats.
Alarm is "P17".
Alternating
(: Blinling) Connect the outdoor maintenance remote controller to the RC socket on the outdoor main unit control PCB (3P,
blue),and check the Alarm Messages on the remote controller display.
Possible cause of malfunction Alarm
Message
z
Remote controller is
detecting error signal from
indoor unit.
Indoor unit is detecting error
signal from outdoor unit.
Outdoor unit is detecting error
signal from indoor unit.
Improper setting
Indoor unit communication
error of group control wiring.
During auto. address setting,
number of connected units
does not correspond to
number set.
Improper setting
<E01>
<E02>
E06
<<E03>>
E04
<<E08>>
<<E09>>
E12
E18
E15
E16
E20
E24
E25
E26
E29
<L03>
<<L02>>
L07
L08
<<L09>>
L17
Indoor unit is detecting error signal from remote controller and system controller.
Error in receiving serial communication signal.
(Auto address is not completed.)
Error in transmitting serial communication signal.
Group wiring failure of indoor units in the refrigerant system
(occurring when remote controller is operated immediately after
automatic address setting)
Indoor unit address setting is duplicated.
Error of main indoor unit in receiving serial communication signal
from sub indoor units.
Duplicated remote controller "main" setting.
Starting auto. address setting is prohibited.
AP pin / CN102 is shorted while the auto. address setting started.
Number of connected indoor units is less than the number set.
Number of connected indoor units is more than the number set.
Duplicated outdoor unit address setting.
Mismatch in "No. of outdoor units" setting.
Error of sub outdoor unit in receiving signal from main outdoor unit.
Duplication of main indoor unit address setting in group control.
Group control wiring is connected to individual control indoor unit.
Indoor unit address is not set.
Capacity code of indoor unit is not set.
No indoor unit is connected.
Main outdoor unit is detecting error signal from sub outdoor unit.
Mismatch of outdoor unit type.
Serial
communication
errors
Mis-setting
Connected indoor unit is not a multi unit.
L04Duplication of outdoor system address setting.
Capacity code of outdoor unit is not set. L10
Error in receiving serial communication signal.
There is an indoor unit which does not send signals when the
power is ON.
Indoor unitThermistor
fault
<<F01>>
<<F03>>
<<F10>>
<<F11>>
Indoor coil temp. sensor (E1)
Indoor coil temp. sensor (E3)
Indoor suction air (room) temp. sensor (TA)
Indoor discharge air temp. sensor (BL)
Continued
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6. Meaning of Alarm Messages
Possible cause of malfunction Alarm
Message
Activation of
protective
device
Protective device in indoor unit
is activated.
Thermal protector in indoor unit fan motor is activated. <<P01>>
Improper wiring connections of ceiling panel. <<P09>>
Float switch is activated. <<P10>>
Operation of protective function of fan inverter. P12
O2sensor (detects low oxygen level) activated. P14
Incorrect discharge temperature. (Comp. No. 1 (INV)) P03
High pressure switch is activated. P04
Negtive (defective) phase. P05
Compressor running failure resulting from missing phase in the
compressor wiring, etc. (Start failure not caused by IPM or no gas.) P16
Incorrect discharge temperature. (Comp. No. 2 (constant speed)) P17
Outdoor unit fan motor is unusual. P22
Overcurrent at time of compressor runs more than 80Hz (DCCT
secondary current or ACCT primary current is detected at a time other
than when IPM has tripped.)
P26
IPM trip (IPM current or temperature) H31
Inverter for compressor is unusual. (DC compressor does not operate.) P29
Thermistor fault Indoor thermistor is either open
or damaged.
Indoor coil temp. sensor (E1) <<F01>>
Indoor coil temp. sensor (E3) <<F03>>
Indoor suction air (room) temp. sensor (TA) <<F10>>
Indoor discharge air temp. sensor (BL) <<F11>>
Outdoor thermistor is either
open or damaged.
Comp. No. 1 (INV) discharge gas temp. sensor (DISCH1) F04
Comp. No. 2 (constant speed) discharge gas temp. sensor (DISCH2) F05
Outdoor No. 1 coil gas temp. sensor (EXG1) F06
Outdoor No. 1 coil liquid temp. sensor (EXL1) F07
Outdoor air temp. sensor (AIR TEMP) F08
Compressor suction temp. sensor (SCT) F12
High pressure sensor. F16
Low-pressure sensor failure F17
Outdoor No. 2 coil gas temp. sensor (EXG2) F23
Outdoor No. 2 coil liquid temp. sensor (EXL2) F24
EEPROM on indoor unit PCB failure F29
Protective
device for
compressor is
activated
Protective device for
compressor No.1 (INV) is
activated.
EEPROM on the main or sub outdoor unit PCB has failed. F31
Current is not detected when comp. No. 1 (INV) is ON. H03
Protective device for
compressor No.2 (constant
speed) is activated
Overload current is detected. H11
Lock current is detected. H12
Current is not detected when comp. No.2 (constant speed) is ON. H13
Discharge gas temperture of comp. No.2 (constant speed) is not
detected. H15
Low pressure trouble H06
Low oil level alarm. H07
Oil sensor fault.
(Disconnection, etc.)
Comp. No.1 (INV) oil sensor H08
Comp. No.2 (constant speed) oil sensor H27
Continued
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6. Meaning of Alarm Messages
Alarm messages displayed on system controller
Serial
communication
errors
Mis-setting
Error in transmitting serial
communication signal
Indoor or main outdoor unit is not oparating correctly.
Mis-wiring of control wiring between indoor unit, main outdoor unit and
system controller.
C05
Error in receiving serial
communication signal
Indoor or main outdoor unit is not operating correctly.
Mis-wiring of control wiring between indoor unit, main outdoor unit and
system controller.
CN1 is not connected properly.
C06
Activation of
protective
device
Protective device of sub indoor
unit in group control is activated
When using wireless remote controller or system controller, in order to
check the alarm message in detail, connect wired remote controller to
indoor unit temporarily.
P30
NOTE
1. Alarm messages in << >> do not affect other indoor unit operations.
2. Alarm messages in < > sometimes affect other indoor unit operations depending on the fault.
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