Rinnai DONSR20Z9 User manual
Ducted Reverse Cycle Inverter
Operation & Installation Manual
Models:
Outdoor Units Indoor Units
DONSR20Z9 DINLR20Z7
DONSR24Z9 DINLR24Z7
Rinnai 2 Ducted Reverse Cycle Inverter OIM
This appliance must be installed in accordance with:
• Manufacturer’s Installation Instructions
• Current AS/NZS 3000, AS/NZS 5141
• Local Regulations and Municipal Building Codes
including local OH&S requirements
This appliance must be installed, maintained and removed
only by an Authorised Person.
For continued safety of this appliance it must be installed
and maintained in accordance with the manufacturer’s
instructions.
Rinnai 3 Ducted Reverse Cycle Inverter OIM
TABLE OF CONTENTS
Warnings and Important Information 4
1. Part Names .................................................................................................................................................. 8
2. Display Panel (Optional) ............................................................................................................................. 8
Operation 8
3. Before Installation ........................................................................................................................................ 9
4. Maintenance ................................................................................................................................................. 9
5. Symptoms That Are Not Faults .................................................................................................................. 10
6. Troubleshooting .......................................................................................................................................... 10
Warnings and Important Information 13
Installation Indoor 17
7. Before Installation ...................................................................................................................................... 17
8. Choosing an Installation Site ...................................................................................................................... 17
9. Indoor Unit Installation ............................................................................................................................... 18
10. Refrigerant Piping Installation .................................................................................................................... 21
11. Condensate Water Discharge Piping Installation ....................................................................................... 23
12. Duct Installation .......................................................................................................................................... 25
13. Electrical Wiring ......................................................................................................................................... 27
14.On-siteConguration ................................................................................................................................. 31
15. Test Run ..................................................................................................................................................... 33
Installation Outdoor 34
16. Precautions ................................................................................................................................................ 34
17. Attached Fittings ........................................................................................................................................ 34
18. Outdoor Unit Installation ............................................................................................................................. 36
19. Install The Connecting Pipe ....................................................................................................................... 38
20. Electrical Wiring ......................................................................................................................................... 41
21. Test Running .............................................................................................................................................. 45
22. Precautions On Refrigerant Leakage ......................................................................................................... 46
23. Turn Over To Customer .............................................................................................................................. 46
24.TechnicalSpecications ............................................................................................................................. 47
25. Cleaning the Indoor Unit ............................................................................................................................ 48
26. Cleaning the Outdoor Unit .......................................................................................................................... 48
27. General Maintenance ................................................................................................................................. 48
28. Maintenance - Pre-Season Inspection ....................................................................................................... 48
Care & Maintenance 48
29. Installation Record - Installer Details .......................................................................................................... 49
30. Installation Record - System Details .......................................................................................................... 49
31. Customer Care Program ............................................................................................................................ 49
32. Service Maintenance Schedule - Ducted Air Conditioning Systems ......................................................... 50
33. Save A Service Call .................................................................................................................................... 51
34. Performing Routine Maintenance ............................................................................................................... 53
35. Checking The Air Filter ............................................................................................................................... 53
36. Unit Support ............................................................................................................................................... 53
37. Non–Rinnai Field Supplied Accessories .................................................................................................... 53
38. Disposal Guidelines ................................................................................................................................... 54
Warranty 55
Contacts 60
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
Always comply with the following precautions to avoid dangerous situations and to ensure optimum
performance.
Failure to carefully read and follow all instructions in this manual can result in equipment malfunction,
propertydamage,waterleakage,electricshock,re,personalinjuryand/ordeath.
DANGER:Indicatesanimminentlyhazardoussituationwhich,ifnotavoided,willresultinpersonalinjury
or death.
WARNINGS: Indicates a potentially hazardous situation which, if not avoided, could result in personal
injuryordeath.
CAUTIONS: Indicates a potentially hazardous situation which, if not avoided, could result in minor or
moderateinjuryordamagetotheappliance.Itmayalsobeusedtoalertagainstunsafepractices.
WARNING
ACHIEVING OPTIMAL PERFORMANCE
For optimal performance ensure to use the air conditioner within the following temperature ranges. Using
theairconditioneroutsideoftheseranges,willactivatecertainsafetyprotectionfeatures,thatwilleect
the appliances performance.
MODE COOL MODE HEAT MODE
Room Temperature 17°C ~ 32°C 0°C ~ 30°C
Outdoor Temperature -15°C ~ 50°C -15°C ~ 24°C
WARRANTY EXCLUSIONS
Rinnai product warranty excludes faults and failures caused by improper use and abuse; fair wear and
tear; or failure to follow instructions regarding service and maintenance. It is very important that you
maintain your appliance and have it serviced regularly. It is a condition of warranty that you adhere to the
maintenance and service requirements as set out in this manual. Compliance with these requirements
will prolong the useful life of your appliance and help ensure it operates eciently. The “Service
Maintenance Schedule”. species specic items to be performed at prescribed intervals by qualied
licensed technicians. The schedule should also be fully completed and retained as a record of who
carried out the service, the date and actions taken.
IMPORTANT: Failure to carry out the requisite maintenance, servicing and recording requirements may
voidyourproductwarranty.Pleasereferto“Warranty”forfulldetails.
WARNING
MANDATORY INSPECTION PRIOR TO INSTALLATION
Immediately report any damage or discrepancies to the Supplier of the appliance. This appliance was
inspected and tested at the time of manufacture and packaging, and released for transportation without
known damage. Upon receipt, inspect the exterior for evidence of rough handling in shipment. Ensure
thattheapplianceislabelledcorrectlyforthegasandelectricalsupply,and/orotherservicesitisintended
to be connected to.
For safety and warranty purposes, appliances that may be damaged or incorrect must not be installed
or operated under any circumstances. Installation of damaged or incorrect appliances may contravene
local government regulations. Rinnai disclaims any liability or responsibility whatsoever in relation to the
installation or operation of damaged or incorrect appliances.
NOTE
A NOTE ON ILLUSTRATIONS
The illustrations used in this manual are for explanatory purposes only and the shape of your indoor unit
may vary slightly from that which is shown in this manual.
IMPORTANT
Rinnai 4 Ducted Reverse Cycle Inverter Operation Manual
WARNINGS AND IMPORTANT INFORMATION
OPERATION / SAFETY
DO NOTusethisunitinlocationswhereammablegasmayexist.Ifammablegascomesintocontact
withtheunit,aremayoccur,whichcouldresultinseriousinjuryordeath.
Ifthisunitexhibitsanyabnormalbehaviour(suchasemittingsmoke)thereisadangerofseriousinjury.
Disconnect the power supply and contact your supplier or service engineer immediately.
The refrigerant in this unit is safe and should not leak if the system is designed and installed properly.
However, if a large amount of refrigerant leaks into a room, the oxygen concentration will decrease
rapidly,whichcancauseseriousinjuryordeath.Therefrigerantusedinthisunitisheavierthanair,so
the danger is greater in basements or other underground spaces. In the event of a refrigerant leak, turn
oanydevicesthatproduceanakedameandanyheatingdevices,ventilatetheroom,andcontactyour
supplier or service engineer immediately.
Toxicfumesmaybeproducediftherefrigerantinthisunitcomesintocontactwithnakedames(suchas
fromaheater,gasstove/burners,orelectricappliances).
Ifthisunitisusedinthesameroomasacooker,stove,hob,orburner,ventilationforsucientfreshair
mustbeensured,otherwisetheoxygenconcentrationwillfall,whichmaycauseinjury.
Dispose of this unit’s packaging carefully, so children cannot play with it. Packaging, especially plastic
packaging, can be dangerous, can cause serious injury or death. Screws, staples and other metal
packagingcomponentscanbesharpandshouldbedisposedofcarefullytoavoidinjury.
DO NOT attempt to inspect or repair this unit yourself. This unit should only be serviced and maintained
by a professional air conditioning service engineer. Incorrect servicing or maintenance can cause electric
shocks,reorwaterleaks.
This unit should only be re-positioned or re-installed by a professional technician. Incorrect installation
canleadtoelectricshocks,reorwaterleaks.Theinstallationandgroundingofelectricalappliances
should only be carried out by licensed professionals. Ask your supplier or installation engineer for further
information.
DO NOT allow this unit or its remote controller to come into contact with water, as this can lead to electric
shocksorre.
Turnotheunitbeforecleaningittoavoidelectricshocks.Otherwise,anelectricshockandinjurymay
result.
Toavoidelectricshocksandres,installanearthleakagedetector.
DO NOT use paint, varnish, hair spray, other ammable sprays or other liquids that may give o
ammablefumes/vapornearthisunit,asdoingsocancauseres.
When replacing a fuse, ensure that the new fuse to be installed completely complies with requirements.
DO NOT open or remove the unit’s panel when the unit is powered on. Touching the unit’s internal
componentswhiletheunitispoweredoncanleadtoelectricshocksorinjuriescausedbymovingparts
such as the unit’s fan.
Ensure that the power supply is disconnected before any servicing or maintenance is carried out.
DO NOT touch the unit or its remote controller with wet hands, as doing so can lead to electric shocks.
DO NOTallowchildrentoplaynearthisunit,asdoingsorisksinjury.
DO NOTinsertyourngersorotherobjectsintotheunit’sairinletorairoutlettoavoidinjuryordamage
to the equipment.
DO NOT spray any liquids onto the unit or allow any liquids to drip onto the unit.
DO NOT place vases or other liquid containers on the unit or in places where liquid could drip onto it.
Waterorotherliquidsthatcomeintocontactwiththeunitcanleadtoelectricshocksorres.
WARNING
Rinnai 5 Ducted Reverse Cycle Inverter Operation Manual
WARNINGS AND IMPORTANT INFORMATION
WARNING
DO NOT remove the remote controller’s front or back overs and DO NOT touch the remote controller’s
internalcomponents,asdoingsocancauseinjury.Iftheremotecontrollerstopsworking,contactyour
supplier or service engineer.
Ensurethattheunitisproperlygrounded,otherwiseelectricshocksoraremayresult.Electricalsurges
(such as those that can be caused by lightning) can damage electrical equipment. Ensure that suitable
surgeprotectorsandcircuitbreakersareproperlyinstalled,otherwiseelectricshocksoraremayresult.
Dispose of this unit properly and in accordance with regulations. If electrical appliances are disposed of
inlandllsordumps,hazardoussubstancescanleakintothegroundwaterandthusenterthefoodchain.
DO NOT usetheunituntilthequaliedtechnicianinstructsyouthatitissafetodoso.
DO NOTplaceappliancesthatproducenakedamesinthepathoftheairowfromtheunit.Theairow
fromtheunitmayincreasetherateofcombustion,whichmaycauseareandcauseseriousinjuryor
death.Alternatively,theairowmaycauseincompletecombustionwhichcanleadtoreducedoxygen
concentrationintheroom,whichcancauseseriousinjuryordeath.
CAUTION
Only use the air conditioner for its intended purpose. This unit should not be used to provide refrigeration
or cooling for food, plants, animals, machinery, equipment or art.
DO NOTinsertyourngersorotherobjectsintotheunit’sairinletorairoutlettoavoidinjuryordamage
to the equipment.
Thensontheunit’sheatexchangeraresharpandcancauseinjuryiftouched.Topreventinjury,when
the unit is being serviced, gloves should be worn or the heat exchanger should be covered.
DO NOT place items which might be damaged by moisture under the unit. When the humidity is greater
than80%orifthedrainpipeisblockedortheairlterisdirty,watercoulddripfromtheunitanddamage
objectsplacedundertheunit.
Ensure that the drain pipe functions properly. If the drain pipe is blocked by dirt or dust, water leaks may
occurwhentheunitisrunningincoolingmode.Ifthishappens,turntheunitoandcontactyoursupplier
or service engineer.
DO NOT TOUCH THE INTERNAL PARTS OF THE CONTROLLER. DO NOT REMOVE the front
panel.Someinternalpartsmaycauseinjuryorbedamaged.
Ensurethatchildren,plantsandanimalsarenotdirectlyexposedtotheairowfromtheunit.
When fumigating a room with insecticide or other chemicals, cover the unit well and DO NOT run it.
Failure to observe this caution could lead to chemicals getting deposited inside the unit and later emitted
from the unit when it running, endangering the health of any room occupants.
DO NOT dispose of this product as unsorted waste. It must be separately collected and processed.
Ensure that all applicable legislation regarding the disposal of refrigerant, oil and other materials is
adhered to. Contact your local waste disposal authority for information about disposal procedures.
To avoid damaging the remote controller, exercise caution when using it and replacing its batteries.
DO NOTplaceobjectsontopofit.
DO NOTplaceappliancesthathavenakedamesunderorneartheunit,asheatfromtheappliance
can damage the unit.
DO NOT place the unit’s remote controller in direct sunlight. Direct sunlight can damage the remote
controller’s display.
DO NOT use strong chemical cleaners to clean the unit, as doing so can damage the unit’s display or
other surfaces. If the unit is dirty or dusty, use a slightly damp cloth with very diluted and mild detergent
to wipe the unit. Then, dry it with a dry cloth.
Rinnai 6 Ducted Reverse Cycle Inverter Operation Manual
WARNINGS AND IMPORTANT INFORMATION
CAUTION
Children SHALL NOT play with the appliance.
DO NOT dispose of this product as unsorted waste. It must be separately
collected and processed. Ensure that all applicable legislation regarding the
disposal of refrigerant, oil and other materials is adhered to. Contact your local
waste disposal authority for information about disposal procedures.
This appliance is NOT intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they DO NOT play with the appliance.
This appliance can be used by children aged from 8 years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience and knowledge if they have been given supervision
or instruction concerning use of the appliance in a safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children
without supervision.
Rinnai 7 Ducted Reverse Cycle Inverter Operation Manual
WARNINGS AND IMPORTANT INFORMATION
1. PART NAMES
Thedrawingshownbelow(Figure1)isforreferenceonlyandmaybeslightlydierentfromtheactualproduct.
Figure 1.
2. DISPLAY PANEL (OPTIONAL)
The display panel has one type and the appearance of the type is shown in Figure 2.
Figure 2.
Table 1. Display panel output under normal operating conditions
Unit state
Display output
Digital display panels
Unit State Digital display
Standby Operation indicator
ashesslowly
Shutting-down Allindicatorso
Operation
Normal operation Operation indicator
on
Cooling and heating modes: set temperature Fan only
mode: indoor ambient temperature
Cold draft prevention or outdoor
unit defrosting operation
Operation and
Anti-cold/defrosting
indicators on
Set temperature
A timer has been set Timer indicator on
* The display panel should be installed in the celling, nothing can be exposed but the panel face
Air Outlet
Air Intake
Electric Control Box
Infrared signal receiver
Operation lamp Timer indicator Alarm indicator
Check button
MANUAL OPERATION TIMER DEF./FAN ALARM
Digital LED display
Anti-cold air /
defrosting indicator
Rinnai 8 Ducted Reverse Cycle Inverter Operation Manual
OPERATION
3. BEFORE INSTALLATION
The operating temperature range under which the unit runs stably are given in Table 2 below.
Table 2.
Mode Indoor temperature
Cooling
17-32°C
If the indoor humidity is above 80%, condensation may
form on the surf ace of the unit.
Heating ≤27°C
CAUTION
The unit performs stably in the temperature range given in above table. If the indoor temperature is
outside the unit’s normal operating range, it may stop running and display an error code.
To ensure the desired temperature
isachievedeciently,ensurethat:
• All windows and door are closed.
• Theairowdirectionisadjustedto
work in running mode.
• Theairlterisclean.
Please note how you can best
save energy and achieve the best
cooling/heatingeect.
• Regularlycleanairltersinside
indoor units.
Note that outlet air is cooler or
warmer than set room
temperature. Avoid direct
exposure to outlet air as it may be
too cool or hot.
Maintain a proper air
distribution. Air outlet louvers
shouldbeusedtoadjustthe
directionofoutletairow,as
doing so might ensure more
ecientoperation.
Avoid too much outdoor air coming
into air-conditioned spaces.
4. MAINTENANCE
CAUTION
Please release pressure before disassembly.
Beforeyoucleantheairconditioner,ensureitispoweredo.
Check that the wiring is undamaged and connected.
Use a dry cloth to wipe the indoor unit and controller.
A wet cloth may be used to clean the indoor unit if it is very dirty.
Never use a damp cloth on the controller.
Do not use a chemically treated duster on the unit or leave this type of material on the unit to avoid
damagingthenish.
Do not use benzene, thinner, polishing powder, or similar solvents for cleaning. These may cause the
plastic surface to crack or warp.
4.1 Maintenance after a long period of non-use
(a) Check for and remove anything that might be blocking the inlet and outlet vents of the indoor units and
outdoor units.
(b) Turn on the power at least 12 hours before you want to use the unit to ensure it works properly. As soon
as the power is turned on, the control display appears.
Check
regularly
Do not set
the temperature
too low
Close doors
and windows.
Rinnai 9 Ducted Reverse Cycle Inverter Operation Manual
OPERATION
CAUTION
When the power switch is connected, some energy will be consumed even if the unit is not running.
Disconnect the power to save energy.
A degree of dirt will accumulate when the unit has been used several times, which will require cleaning.
Take of the batteries from the remote controller.
5. SYMPTOMS THAT ARE NOT FAULTS
The following symptoms may be experienced during the normal operation of the unit and are not considered faults.
Note: If you are not sure whether a fault has occurred, contact your supplier or service engineer immediately.
Symptom 1. The unit will not run
Symptom:WhentheON/OFFbuttononthecontrollerispressed,theunitdoesnotimmediatelystartrunning.
Cause: to protect certain system components, system start-up or re-start is intentionally delayed for up to 12
minutes under some operating conditions. If the OPERATION LED on the unit’s panel is lighting, the system is
working normally and the unit will start after the intentional delay is complete.
Heatingmodeisrunningwhenthefollowingpanellightsareon:operationandthe“DEF./FANLED”indicator.
Cause: the indoor unit activates protective measures because of the low outlet temperature.
Symptom 2. Symptom 2: The unit emits white mist
White mist is generated and emitted when the unit starts to operate in a very humid environment. This phenomenon
will stop once the humidity in the room is reduced to normal levels.
Theunitoccasionallyemitswhitemistwhenitrunsinheatingmode.Thisoccurswhenthesystemnishesperiodic
defrosting. Moisture that may accumulate on the unit’s heat exchanger coil during defrosting becomes mist and is
emitted from the unit.
Symptom 3. Symptom 4: Dust is emitted from the unit
Thiscanoccurwhentheunitrstrunsafteralongidleperiod.
Symptom 4. Symptom 5: The unit gives o a strange odour
If smells such as those of strong-smelling food or tobacco smoke are present in the room, they can enter the unit,
leave trace deposits on the unit’s internal components, and later be emitted from the unit.
6. TROUBLESHOOTING
6.1 General
Sections “6.2 Unit Troubleshooting” on page 11 and “6.3 Remote Controller Troubleshooting” on page 11
describe some initial troubleshooting steps that can be taken when an error occurs. If these steps do not resolve
the issue, arrange for a professional technician to investigate the problem. Do not attempt further investigations or
troubleshooting yourself.
(a) Ifanyofthefollowingerrorsoccur,powertheunito,contactaprofessionaltechnicianimmediatelyand
do not attempt troubleshooting yourself:
(b) Asafetydevicesuchasafuseorcircuitbreakerfrequentlyblows/trips.
(c) Anobjectorwaterenterstheunit.
(d) Water is leaking from the unit.
CAUTION
Donotattempttoinspectorrepairthisunitbyyourself.Arrangeforaqualiedtechniciantocarryoutall
servicing and maintenance.
Rinnai 10 Ducted Reverse Cycle Inverter Operation Manual
OPERATION
6.2 Unit Troubleshooting
Table 3.
Symptom Possible causes Troubleshooting steps
The unit does not start
A power cut has occurred (the power to
thepremiseshasbeencut-o). Wait for the power to come back on.
Theunitispoweredo.
Power on the unit. Ask a professional
technician for advice regarding how to
safely power on the units.
The power switch fuse may have burned
out. Replace the fuse reset circuit breaker.
Airowsnormallybutdoesn’tcool The temperature setting is not correct. Set the desired temperature on the remote
controller.
The unit starts or stops frequently
Arrange for a professional technician to check the following:
• Too much or too little refrigerant.
• No gas in the refrigerant circuit.
• The outdoor unit compressors have malfunctioned.
• The power supply voltage is too high or too low.
• There is a blockage in the piping system.
Lowcoolingeect
Doors or windows are open. Close the doors and windows.
Sunlight is shining directly onto the unit. Closeshutters/blindstoshieldtheunit
from direct sunlight.
The room contains many heat sources
such as computers or refrigerators.
Turnosomeofthecomputersduringthe
hottest part of the day.
The outside temperature is unusually high.
The cooling capacity of the system
reduces as the outdoor temperature rises
andthesystemmaynotprovidesucient
cooling if the local climate conditions are
not considered when the system’s outdoor
units were selected.
Engage a professional air conditioning engineer to check the following:
• The unit’s heat exchanger is dirty.
• The unit’s air inlet or outlet is blocked.
• A refrigerant leak has occurred.
Lowheatingeect
Doors or windows are not completely
closed. Close doors and windows.
Arrange for a professional technician to check the following:
• A refrigerant leak has occurred.
6.3 Remote Controller Troubleshooting
WARNING
Certain troubleshooting steps that a professional technician may perform when investigating
an error are described in this operation manual for reference only. Do not attempt to undertake
these steps yourself – arrange for a professional technician to investigate the problem.
Ifanyofthefollowingerrorsoccur,powertheunitoandcontactaprofessionaltechnicianimmediately.
Do not attempt troubleshooting yourself:
• Asafetydevicesuchasafuseorcircuitbreakerfrequentlyblows/trips.
• Anobjectorwaterenterstheunit.
• Water is leaking from the unit.
Rinnai 11 Ducted Reverse Cycle Inverter Operation Manual
OPERATION
Table 4.
Symptom Possible causes Troubleshooting steps
Thefanspeedcannotbeadjusted
Check whether the MODE indicated on the
displayis“AUTO”.
In automatic mode, the air conditioner will
automatically change the fan’s speed.
Check whether the MODE indicated on the
displayis“DRY”.
When dry mode is selected, the air
conditionerautomaticallyadjuststhefan
speed. (The fan speed can be selected
during“COOL”,“FANONLY”,and“HEAT”.)
The remote controller signal is not
transmittedevenwhentheON/OFFbutton
is pushed
A power cut has occurred (the power to the
premiseshasbeencut-o). Wait for the power to come back on.
The indication on the display disappears
after a certain time
Check whether the timer operation has come
to an end when TIMER OFF is indicated on
the display.
The air conditioner operation will stop up to
the set time.
TheTIMERONindicatorgoesoaftera
certain time
Check whether the timer operation has come
to an end when TIMER ON is indicated on
the display.
Up to the set time, the air conditioner will
automatically start and the appropriate
indicatorwillgoo.
No receiving sound from the indoor unit
whentheON/OFFbuttonispressed
Check whether the signal transmitter of the
remote controller is properly directed to the
infrared signal receiver of the indoor unit
whentheON/OFFbuttonispressed.
Directly transmit the signal transmitter of
the remote controller to the infrared signal
receiver of the indoor unit, and then press
theON/OFFbuttontwice.
6.5 Error Codes
Withtheexceptionofamodeconicterror,contactyoursupplierorserviceengineerifanyoftheerrorcodeslisted
inthefollowingtablearedisplayedontheunit’sdisplaypanel.Ifthemodeconicterrorisdisplayedandpersists,
contact your supplier or service engineer. These errors should only be investigated by a professional technician.
The descriptions are provided in this manual for reference only.
Table 5.
Content Display output Possible causes
Modeconict E0 Theindoorunitoperatingmodeconictswiththatofthe
outdoor units.
Communication error between indoor and
outdoor units
E1 Communication wires between indoor and outdoor units
not connected properly.
• Interference from high voltage wires or other sources of
electromagnetic radiation.
• Communication wire too long.
• Damaged main PCB.
Indoor ambient temperature sensor (T1)
error
E2 • Temperature sensor not connected properly or has
malfunctioned.
• Damaged main PCB.
Indoor heat exchanger mid-point
temperature sensor (T2) error
E3
Indoor heat exchanger outlet temperature
sensor (T2B) error
E4
Fan error E6 • Fan stuck or blocked.
• Fan motor not connected properly or has malfunctioned.
• Power supply abnormal.
• Damaged main PCB.
EEPROM error E7 • Damaged main PCB.
Indoor EEV coil error Eb • Line loosened or broken.
• The electronic expansion
• Damaged main PCB.
Outdoor unit error Ed • Outdoor unit error.
Water level error EE • Waterleveloatstuck.
• Water level switch not connected properly.
• Damaged main PCB.
• Drain pump has malfunctioned.
The indoor unit has not been assigned an
address
FE • Indoor unit has not been assigned an address.
Rinnai 12 Ducted Reverse Cycle Inverter Operation Manual
OPERATION
Rinnai 13 Ducted Reverse Cycle Inverter Installation Manual
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
Always comply with the following precautions to avoid dangerous situations and to ensure optimum
performance.
Failure to carefully read and follow all instructions in this manual can result in equipment malfunction,
propertydamage,waterleakage,electricshock,re,personalinjuryand/ordeath.
DANGER:Indicatesanimminentlyhazardoussituationwhich,ifnotavoided,willresultinpersonalinjury
or death.
WARNINGS: Indicates a potentially hazardous situation which, if not avoided, could result in personal
injuryordeath.
CAUTIONS: Indicates a potentially hazardous situation which, if not avoided, could result in minor or
moderateinjuryordamagetotheappliance.Itmayalsobeusedtoalertagainstunsafepractices.
WARNING
REGULATORY / INSTALLATION
This appliance shall be installed in accordance with:
Manufacturer’s Installation Instructions.
CurrentAS/NZS3000,AS/NZS5141.
Local Regulations and Municipal Building Codes including local OH&S requirements.
This appliance must be installed, maintained and removed by an Authorised Person. Refrain from doing
ityourself.Improperinstallationmaycausewaterleakage,electricshockorre.
For continued safety of this appliance it must be installed and maintained in accordance with the
manufacturers instructions.
This appliance uses R410A refrigerant.
This appliance is heavy, use 2 people or mechanical lifting device. Improper lifting may result in serious
injury.
Takecarewhen openingorunpackingthisappliance. Failuretodoso mayresultinseriousinjury or
product failure.
DO NOT modify the electrical wiring of this appliance. If the control power wiring is damaged or
deteriorated then it must be replaced by an authorised person. Failure to do so may result in electric
shock,re,seriousinjuryorproductfailure.
DO NOT install the air conditioner on an unstable or non level surface or where there may be a danger
ofitfalling.Itmayresultindeath,seriousinjury,orproductfailure.
DO NOT install the outdoor unit where noise may cause nuisance.
DO NOT install the outdoor unit where it will be exposed to sea wind (salt spray) as this will reduce
durability.
WARNING
MANDATORY INSPECTION PRIOR TO INSTALLATION
Immediately report any damage or discrepancies to the Supplier of the appliance. This appliance was
inspected and tested at the time of manufacture and packaging, and released for transportation without
known damage. Upon receipt, inspect the exterior for evidence of rough handling in shipment. Ensure
thattheapplianceislabelledcorrectlyforthegasandelectricalsupply,and/orotherservicesitisintended
to be connected to.
For safety and warranty purposes, appliances that may be damaged or incorrect MUST NOT be installed
or operated under any circumstances. Installation of damaged or incorrect appliances may contravene
local government regulations. Rinnai disclaims any liability or responsibility whatsoever in relation to the
installation or operation of damaged or incorrect appliances.
IMPORTANT
WARNINGS AND IMPORTANT INFORMATION
Rinnai 14 Ducted Reverse Cycle Inverter Installation Manual
INSTALLATION / SAFETY
For installation in smaller rooms, you must adopt the relevant measures to prevent the refrigerant
concentration from exceeding the limit. Please consult the sales agent on the relevant measures required.
Ahighconcentrationofrefrigerantinanairtightspacecancauseoxygeninsuciency(anoxia).
Makesuretherequiredpartsandaccessoriesareinstalled.Usingunspeciedpartsmaycausetheair
conditionertomalfunctionordrop,aswellaswaterleakage,electricshock,andre.
Mount the air conditioner in a place that is sturdy enough to bear its weight. If the base is not secured
properly,theairconditionermaydropleadingtodamagesandinjuries.
Take in full consideration to the eects of strong winds, storms and earthquakes, and reinforce the
installation. Improper installation may cause the air conditioner to drop leading to accidents.
Make sure a standalone circuit is used for the power supply. All electrical parts must comply with the
local laws and regulations, and what is stated in this installation manual. The installation works must be
carriedoutbyaprofessionalandqualiedelectrician.Insucientcapacityorimproperelectricalworks
canleadtoelectricshockorre.
Useonlyelectricalcablesthatfullthespecications.Allwiringonsitemustbecarriedoutinaccordance
with the connection diagram attached to the product. Make sure that there are no external forces acting
ontheterminalsandwires.Improperwiringandinstallationmaycauseare.
Make sure the power cord, communication and controller wiring are straight and level when you are
working on the connections, and the cover on the electric box is tight. If the electric box is not closed
properly,itmayleadtoelectricshock,reoroverheatingofelectricalcomponents.
If the refrigerant leaks during installation, open the doors and windows immediately to ventilate the area.
Refrigerantcanproducetoxicgaseswhenincontactwithre.
Switchothepowersupplybeforetouchinganyelectricalcomponent.
DO NOT come in direct contact with the refrigerant leaking from the connections of refrigerant piping.
Otherwise, it may lead to frostbite.
The air conditioner must be grounded. DO NOT connect the earth line (ground) to gas piping, water
piping,lightningrodsortelephoneearthlines.Impropergroundingcanleadtoelectricshockorre,and
may cause mechanical failure due to current surges from lightning and so on.
Theearthleakagecircuitbreakermustbeinstalled.Thereisariskofelectricshockorreiftheearth
leakage circuit breaker is not installed.
Install the water discharge piping according to the steps described in this manual, and make sure that
the water discharge is smooth, and the piping is properly insulated to prevent condensation. Improper
installation of the water discharge piping may lead to water leakage, and damage the indoor furniture.
If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly
qualiedpersoninordertoavoidahazard.
An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be
connectedinxedwiring.
The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the
copper tube.
Check the power supply before installation. Ensure that the power supply must be reliably grounded
following local, state and National Electrical Codes. If not, for example, if the ground wire is charged,
installationisprohibitedbeforeitisrectied.Otherwise,thereisariskofreandelectricshock,causing
physicalinjuryordeath.
CAUTION
Install the water discharge piping according to the steps described in this manual, and make sure that
the water discharge is smooth, and the piping is properly insulated to prevent condensation. Improper
installation of the water discharge piping may lead to water leakage, and damage the indoor furniture.
WARNING
WARNINGS AND IMPORTANT INFORMATION
Rinnai 15 Ducted Reverse Cycle Inverter Installation Manual
CAUTION
When mounting the indoor and outdoor units, make sure the power cord is installed at a distance of at
least 1 m away from any TV or radio so as to prevent noise or interference with the images.
The refrigerant required for the installation is R410A. Make sure the refrigerant is correct before
installation. Incorrect refrigerant may cause the unit to malfunction.
DO NOT install the air conditioner in the following places:
• Where there is oil or gas, such as the kitchen. Otherwise, the plastic parts may age prematurely
or water may leak.
• Where there are corrosive gases (such as sulphur dioxide). Corrosion in the copper pipes or
welded parts may cause the refrigerant to leak.
• Where there are machines emitting electromagnetic waves. Electromagnetic waves may
interfere with the control system, causing the unit to malfunction.
• Where there is a high salt content in the air. When exposed to air with a high salt content,
the mechanical parts will experience accelerated ageing which will severely compromise the
service life of the unit.
• Wheretherearemajorvoltageuctuations.Operatingtheunitusingapowersupplysystem
thathaslargevoltageuctuationswillreducetheservicelifeoftheelectroniccomponents,and
cause the unit’s controller system to malfunction.
• Wherethereisariskofleakageofammablegases.Examplesaresitesthatcontaincarbon
bresorcombustibledustintheair,orwheretherearevolatilecombustibles(suchasdiluentor
petrol).Theabovegasesmaycauseexplosionandre.
• DO NOT touchthensoftheheatexchangerasthismayleadtoinjury.
• Some products use the PP packing belt. DO NOT pull or tug on the PP packing belt when you
transport the product. It will be dangerous if the packing belt breaks.
• Note the recycling requirements for nails, wood, carton and other packaging materials.
DO NOT discard these materials directly as these may lead to bodily harm.
• Tear up the packaging bag for recycling to prevent children from playing with it, and leading to
suocation.
• The appliance shall not be installed in the laundry.
WARNING
WARNINGS AND IMPORTANT INFORMATION
Rinnai 16 Ducted Reverse Cycle Inverter Installation Manual
OPERATION
DO NOT let the air conditioner run for extended periods when the humidity is very high or when doors or
windows are left open. As this may result in an excessive operational loading and lead to product failure.
DO NOT cover or place articles on any part of this appliance.
DO NOT touch, operate or clean the air conditioner with wet hands. It may result in electric shock or
product failure.
DO NOTinserthandsor otherobjectsthroughtheairinlet oroutletoftheappliance itmayresultin
electric shock or product failure.
DO NOT place a heater or other heating appliances near this appliance, always ensure sucient
ventilation when using this appliance and a heating appliance at the same time. Failure to do so may
result in product miss-operation.
Turnmainpowerobeforecleaning.Failuretodosomayresultinre,electricshock,orproductfailure.
DO NOT use solvents, abrasives or harsh detergent to clean any part or surface of this appliance or
spray water or allow liquids to enter the indoor unit. The enclosure of the appliance and remote control
can be cleaned using a soft, damp cloth and a mild detergent.
NEVERtouchthemetalpartsoftheairconditionerwhenyouremovetheairlter.Itmayresultinelectric
shock or product failure.
DO NOTleaveammablematerialsneartheappliance.Itmayresultinexplosionorre.
If there is excessive noise, smell or smoke coming from the appliance, turn the appliance OFF, isolate
the power supply and contact a service agent.
DO NOT operatetheapplianceifithasbeensubmergedintowaterduetoooding,contactaservice
agent.Failuretodosomayresultinelectricshock,re,seriousinjury,orproductfailure.
This appliance is NOT intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they DO NOT play with the appliance.
The air conditioning system is designed to achieve consumer comfort. It is not designed for commercial
applications requiring a controlled atmosphere (i.e. computer rooms, food preservation, etc.)
DO NOT blocktheinletoroutletofairow.Itmayresultproductfailure.
DO NOT drink the condensate water drained from the appliance. This condensate is not potable and
may present a health risk if consumed.
DO NOT expose people, animals or plants directly to the cold or hot discharge of the appliance. It may
resultinseriousinjury.
DO NOT mix the batteries for the remote control with other types of batteries or mix new batteries with
used batteries. Failure to do so may result in product failure. STOP using the remote control if there is
abatteryuidleak.
DO NOT use an extension cord, manually extend the power cord, or connect other appliances to the
sameoutletastheairconditioner.Poorelectricalconnections,poorinsulation,andinsufcientvoltage
cancausere.
WARNING
WARNINGS AND IMPORTANT INFORMATION
ACCESSORIES
CODE NAME OF ACCESSORIES QTY OUTLINE USAGE
1 Installation manual 1 (This manual) –
2 Operation manual 1 –
3 Pipe insulation material 7.1-28.0kW 2 Heat insulation
4 Water connecting pipe 20.0-24.0kW 2 To connect drain pipe
5 Adhesive tape for seal 20.0-24.0kW 2 To connect drain pipe
6 Display 1 –
7 Weak electric cable group 1 –
8 Copper nut 2 Use for connecting pipes
ACCESSORIES TO PURCHASE LOCALLY
CODE NAME APPEARANCE DIMENSIONS QTY NOTE
1
Thermostat control
wire (shielded cable
0.75mm)
Topurchasebasedonactualproject
requirements.
To purchase based
onactualproject
requirements.
Use to connect to
wired controller.
2 Copper pipe
Choose and purchase copper pipes
that correspond to the length and size
calculated for the selected model in the
installation manual of the outdoor unit and
youractualprojectrequirements.
To purchase based
onactualproject
requirements.
Use to connect
indoor refrigerant
piping.
3PVC pipe for water
discharge Refertospecicmodels.
To purchase based
onactualproject
requirements.
Use to discharge
condensed water
from the indoor
unit.
4Insulation casing for
piping
The inner diameter is based on the
diameter of the copper and PVC pipes.
The thickness of the pipe casing is 10
mm or more. Increase the thickness of
the casing (20 mm or thicker) when the
temperature exceeds 30°C or the humidity
exceeds RH80%.
To purchase based
onactualproject
requirements.
Protect
piping from
condensation.
5Expansion hook
anchor M10
To purchase based
onactualproject
requirements.
For installation of
indoor unit.
6 Mounting hook M10
To purchase based
onactualproject
requirements.
For installation of
indoor unit.
7Tie Topurchasebasedonactualproject
requirements.
To purchase based
onactualproject
requirements.
Tie for
connecting wire
8 Safety tray Based on install
To purchase based
onactualproject
requirements.
Prevent ceiling
damage.
7. BEFORE INSTALLATION
• Determine the route to move the unit to the installation site.
• First unseal and unpack the unit. Then hold the four seats of the hanger to move the unit. Refrain from
exerting force on other parts of the unit, especially the refrigerant piping, water discharge piping, and plastic
parts.
8. CHOOSING AN INSTALLATION SITE
8.1 Choose a site that fully complies with the following conditions and user requirements to install the
air conditioning unit.
• Well ventilated.
• Unobstructedairow.
Rinnai 17 Ducted Reverse Cycle Inverter Installation Manual (Indoor)
INSTALLATION INDOOR
• Strong enough to bear the weight of the indoor unit.
• Ceiling has no obvious slant.
• Thereissucientspaceforrepairandmaintenanceworktobecarriedout.
• Noleakageofammablegas.
• The length of the piping between the indoor and outdoor units is within the permitted range (refer to the
manual on installation of the outdoor unit).
• Thestaticpressureoftheairductoftheindoorunitiswithinthepermittedrange(see“12.2FanPerformance”
on page 26).
CAUTION
If the indoor ambient temperature and relative humidity exceed 30°C and 80%, attach insulation
materials at a thickness greater than 10 mm to the unit body.
8.2 Install with M10 or W3/8 lifting bolts.
8.3 The space required for installation (unit: mm) is shown in Figure 3 and Figure 4 below.
Maintenance room
Maintenance room
Electric control
box assembly
Inspection:
600 mm x 600 mm
≥ 600 mm ≥ 500 mm
Air outlet side Air return side
Side face (wall)
Side face (wall)
Electric control
box assembly
≥ 40 mm
For Inspection
≥ 600 mm
Air outlet side
Air return side
Ceiling
Ensure that the minimum slope for
water discharge is more than
1/100, and that the unit body slopes
down towards the drainage side.
Figure 3. Figure 4.
9. INDOOR UNIT INSTALLATION
Makesurethatonlyspeciedcomponentsareusedfortheinstallationworks.
9.1 Installation with Lifting Bolts
Usedierentboltsfortheinstallationdependingontheinstallationenvironment.
Square bar material
Beam
Ceiling
Lifting bolt
Use embedded bolts, and pull bolts.
Figure 5. Wooden structure Figure 6. Original concrete slab structure
Rinnai 18 Ducted Reverse Cycle Inverter Installation Manual (Indoor)
INSTALLATION INDOOR
Directly set and use an angled steel rod for support.
Suspension bolt for support
Angled rod
Suspension bolt
Set using embedded appliances, and embedded type of bolts.
insertion piece
Knife-type Sliding-type
insertion piece
Reinforced bar
Embedded bolt
(hanging and
embedded bolt for piping)
Figure 7. Steel framework Figure 8. Newly set concrete slab structure
CAUTION
All bolts should be made from high quality carbon steel (with galvanized surface or other rust
prevention treatment) or stainless steel.
How the ceiling should be handled will dier with the type of building. For specic measures,
please consult the building and renovation engineers.
How the lifting bolt is secured depends on the specic situation, and it must be secure and
reliable.
9.2 Installation of the Indoor Unit
• When mounting the lifting lugs of the indoor unit on the lifting bolts, slot the nut washers of the lifting bolts in
the oblong holes of the lifting lugs. The upper and lower nuts and the washers are shown in Figure 9.
• Adjusttheheightoftheindoorunit.
• Use a spirit level to verify that the unit body is level (making the unit body slope downwards towards the
drainage side), as shown in Figure 10.
Lifting bolt
lifting lugs
Installation of
Nut (bottom)
Nut (top)
Nut (bottom)
Washer (bottom)
Ceiling
Make sure the connections are tight.
Spirit Level
Figure 9. Steel framework Figure 10. Newly set concrete slab structure
Rinnai 19 Ducted Reverse Cycle Inverter Installation Manual (Indoor)
INSTALLATION INDOOR
20.0-24.0 KW UNIT
Unit: mm
Size of Return Air Inlet
4-12*25Position of lifting bolt
Refrigerant piping
Size of Air Outlet (gas side)
Refrigerant piping
(liquid side)
Φ22 (OD)
Φ12.7 (OD)
Connect to
water piping
Return Air Inlet Flange
Air Outlet Flange
Return Air Inlet
Air Outlet
Positions of 4-12*25
lifting bolts
Electric control
box assembly
Connection hole
(for the air duct)
936 (L)
342(W)
56
1122(L)
73 75
931
56 64
105 68.5
205
510
42121
80
100
110
100
301 301
1274
1454
378(W)
Figure 11.
Rinnai 20 Ducted Reverse Cycle Inverter Installation Manual (Indoor)
INSTALLATION INDOOR
This manual suits for next models
3
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