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Daikin
Daikin 8.5kW Inverter Ducted Reverse Cycle System (FDYAN85AV1)
Cooling8.50kW
Heating10.00kW
Home size100-180 m2
Indoor noise42.4 dB
Warranty5 years
The Daikin FDYAN85AV1 is an 8.5kW single-phase inverter ducted system, sized for average family homes in and around Singleton — and notable for a heating output that considerably exceeds its cooling capacity.
Coalfields Climate Control designs, supplies and installs ducted systems across the Hunter Valley, starting with a full heat-load calculation on site.
Overview of Daikin 8.5kW Inverter Ducted Reverse Cycle System (FDYAN85AV1)
▾The FDYAN85AV1 pairs with the RZA85CV1 outdoor unit on 240V single-phase supply. Rated capacity is 8.5kW cooling and 10.0kW heating, modulating from 3.2kW to 10.0kW in cooling.
That heating figure is the standout: 10.0kW of heat from an 8.5kW cooling machine. For a Hunter Valley home that means the system recovers quickly on a cold July morning without needing to be oversized for summer — a genuinely useful asymmetry.
The indoor unit stays on the 300 x 1210 x 900 mm chassis at 40kg, so ceiling space requirements are the same as the 7.1kW model. The outdoor unit steps up to 990 x 940 x 320 mm and 69kg, which needs a properly prepared base and more clearance.
Airflow is 580 l/s nominal, 600 l/s maximum. Refrigerant is R32, on a 50m maximum pipe run.
– 10.0kW heating output from an 8.5kW cooling system — strong winter recovery
– Same 300mm-high indoor chassis as the 7.1kW model
– Runs on standard 240V single-phase supply
– Zoning compatible for room-by-room control
– Inverter modulation from 3.2kW to 10.0kW in cooling
– R32 refrigerant
– 50m maximum pipe run
– 5-year parts and labour warranty when professionally installed
Is the Daikin 8.5kW Inverter Ducted Reverse Cycle System (FDYAN85AV1) right for your home?
▾– Average family homes, roughly 100 to 180 m2 of conditioned floor area
– Four-bedroom single-storey homes with a zoned layout
– Homes where winter heating performance is a priority
– Properties in more exposed positions around Singleton where morning temperatures run low
– Replacing a ducted system that never quite kept up in winter
If your roof space is tight, note that this shares the shallow 300mm chassis — you do not lose ceiling clearance stepping up from the 7.1kW.
Performance & Efficiency
▾Cooling Capacity
8.5 kW
Heating Capacity
10.0 kW
Recommended Room
100–180 m²
Inverter
Yes
YesEER
3.36
COP (Heating)
3.57
Capacity range 3.2-10.0kW cooling, 3.5-11.2kW heating. TCSPF (residential) 4.29/3.85/3.90 and HSPF 3.97/3.67/3.32 (hot/average/cold) under the GEMS 2019 Determination. Airflow 580/600 l/s nominal/max. Figures measured to AS/NZS 3823.1.2.
Noise Levels
▾Indoor Max
42.4 dB(A)
Outdoor
54 dB(A)
Indoor sound level at high fan, measured 1.5m from the unit. Outdoor sound pressure at high fan, measured 1m from the unit. EPA sound power level 70 dBA. Ducted indoor units sit in the ceiling space, so in-room noise depends heavily on duct design and grille selection.
Power & Installation
▾Power Supply
240V Single Phase
Max Power Input
2.80 kW
Max Pipe Length
50 m
Indoor unit 300mm high -- confirm available ceiling space before specifying. Drain ID 25 / OD 32. Outdoor operating range -5 to 46 degrees C DB cooling, -15 to 16 degrees C WB heating.
Refrigerant & Environment
▾Refrigerant
R32
R32 has a substantially lower global warming potential than R410A. Daikin requires R32 ducted indoor units to be installed in the ceiling space, not under floor.
Dimensions & Weight
▾Indoor (W×H×D)
1210 × 300 × 900 mm
Outdoor (W×H×D)
940 × 990 × 320 mm
Warranty
▾Warranty period
5years
5-year parts and labour warranty on ducted systems professionally installed in domestic premises in Australia.
Model Details
▾Model NameInverter Ducted
Model NumberFDYAN85AV1
Indoor UnitFDYAN85AV1
Outdoor UnitRZA85CV1
Features
▾Eco Mode
Zoning
Quiet Mode
Auto Restart
Weekly Timer
Energy Efficiency & Performance
▾The FDYAN85AV1 is rated at 3.36 EER cooling and 3.57 COP heating. Seasonal figures under GEMS 2019 are a TCSPF of 4.29 / 3.85 / 3.90 and HSPF of 3.97 / 3.67 / 3.32 across hot, average and cold zones.
Its cooling EER of 3.36 is actually the best in the FDYAN range — better than both the 7.1kW below it and the 10.0kW above. If your heat-load calculation lands near this capacity, that is a point in its favour.
Rated input is 2.53kW cooling and 2.80kW heating. On a single-phase supply that is a substantial but manageable load; we check switchboard capacity as part of the site assessment.
As with any ducted system, zone discipline drives the running cost more than the equipment rating does. A well-designed zone plan is worth more than a small difference in EER.
Installation Notes for the Daikin 8.5kW Inverter Ducted Reverse Cycle System (FDYAN85AV1)
▾This system pairs the FDYAN85AV1 indoor unit with the RZA85CV1 outdoor unit, on a 240V single-phase supply, with a maximum pipe run of 50m.
A ducted system is a building job as much as an equipment job. Before quoting, Coalfields Climate Control assesses ceiling space and access, plans the zone layout and duct runs, calculates the heat load room by room, checks the electrical supply, and confirms where the outdoor unit can sit without creating a noise problem at a boundary.
What supply and install through us covers:
– Manufacturer-approved installation by qualified technicians, so the warranty is not compromised by a non-compliant install
– A lifetime guarantee of workmanship on the installation itself
– A 10-day install guarantee on split system installations in Singleton
– Drop sheets laid before work starts, mess cleaned up afterwards, and a walkthrough of how to operate the system
The most common problem we are called out to fix is not a faulty unit — it is an installation issue: undersized selection, poor outdoor unit placement, or drainage that was never set up properly. Getting the supply and the install from one local team means one number to call if anything is not right.
To arrange a site assessment and quote, call 0422 493 102.
Warranty Information
▾Daikin provides a 5-year parts and labour warranty on ducted systems professionally installed in domestic premises in Australia.
That warranty depends on the installation being carried out correctly by a qualified installer, and on normal use and maintenance. A DIY or unlicensed install is the fastest way to void it — and handling refrigerant without a licence is an offence in Australia regardless of the warranty position.
Coalfields Climate Control installs to manufacturer specification and is manufacturer-approved for full warranty servicing across all major brands, so ongoing servicing can be handled locally rather than through a metropolitan agent. Our own workmanship carries a lifetime guarantee on top of the product warranty.
Warranty coverage depends on correct installation, normal use, maintenance requirements and the manufacturer current warranty terms.
Frequently Asked Questions
▾What size home does the FDYAN85AV1 suit?
Roughly 100 to 180 m2 of conditioned floor area. Floor area is only a rough guide though -- ceiling height, insulation, glazing and orientation change the answer significantly. We do a room-by-room heat-load calculation on site before quoting a ducted system.
Do I need a three-phase power supply?
It runs on a standard 240V single-phase supply, so most homes will not need a supply upgrade. We still check switchboard and circuit capacity during the assessment, because a system this size adds a substantial load alongside everything else in the house.
Will the indoor unit fit in my roof space?
The indoor unit is 300mm high and 1210mm long, and it has to be lifted into position as well as fitted. Ceiling space and access route are among the first things we check on site -- it is far better to find a problem at assessment stage than on installation day.
What refrigerant does it use?
R32, which has a lower global warming potential than the older R410A and costs less to top up if the system ever needs a regas. Daikin requires R32 ducted indoor units to be installed in the ceiling space, not under floor.
How much does a ducted system cost to install in Singleton?
Ducted pricing depends on the number of zones, duct runs, ceiling access, electrical work and where the outdoor unit can go -- far more variable than a split system. We quote after a full site assessment and heat-load calculation. Call 0422 493 102 to arrange one.
Does zoning actually save money?
Yes, and it is the single biggest lever on running cost. Conditioning three rooms instead of seven cuts consumption roughly proportionally. Getting the zone plan right at design stage matters more to your bills than small differences in equipment efficiency ratings.