Premium · CS-Z42AKRW
★ Most popularPanasonic Z 4.2kW — installed in Perth
From $2,595 inc GST, supply & installed
Back-to-back install price. Your exact fixed quote is free and confirmed before any work starts.
- ✓ Dual-licensed: aircon + electrical
- ✓ Panasonic 5-year parts and compressor
- ✓ Workmanship warranty on the install
Why it's our most popular: Matt's personal recommendation: built-in Wi-Fi and nanoe™ X air purification as standard, at a sharper price than the equivalent Daikin.
Who the Panasonic Z 4.2kW is for
The 4.2kW Z suits large masters and compact living areas, with 5.1kW of heating and the whole flagship feature set as standard. AEROWINGS twin louvres matter at this size — even airflow across the room instead of one cold stripe under the unit.
Sized right, 4.2kW comfortably covers around 28 m² in Perth conditions — standard bedroom, small living. Every Z has a Quiet mode that drops fan speed and noise for bedrooms and night running. If you're between sizes, we'll tell you straight at the quote which way to go — an undersized unit runs flat-out and wears early, an oversized one short-cycles.
The Z series is Panasonic's premium wall split and our most-recommended unit for living areas: built-in Wi-Fi as standard, nanoe™ X air purification running 24/7, and AEROWINGS twin-louvre airflow that showers the room evenly instead of blasting one spot. Panasonic is our top pick as a brand — premium quality on par with Daikin, at a sharper price thanks to our supplier relationship.
Installed price
What $2,595 includes
The from-price is a standard back-to-back install — indoor and outdoor unit on opposite sides of the same wall — and it includes the whole job, not a stripped-down teaser:
- The indoor head and outdoor unit, mounted, levelled, and secured
- Up to 3 metres of insulated refrigerant pipework in neat trunking
- Electrical connection to a suitable existing circuit, with an isolating switch at the outdoor unit
- Condensate drain run to ground level
- Standard outdoor mounting (blocks at ground level, or a wall bracket where specified)
- Vacuum, pressure test, and refrigerant charge to the manufacturer's spec
- Full run test, commissioning, remote demo, and the compliance paperwork
What lifts a quote above the from-price: long pipe runs, two-storey or high mounting, tricky access, and the dedicated circuit this size requires (which we run in-house — no second electrician). The full breakdown is in our Perth split system cost guide, or get a number for your wall with the cost calculator.
The Panasonic Z range
Why we fit the Panasonic Z
Living areas and family homes that want app control, air purification and even airflow as standard.
Built-in Wi-Fi & app control
Control, schedule and monitor from the Comfort Cloud app — plus Google Assistant and Alexa — with no extra adaptor.
nanoe™ X air purification
Hydroxyl-radical purification runs 24 hours a day, inhibiting bacteria, viruses, mould, allergens and odours — no filters to replace.
AEROWINGS airflow + Quiet mode
Twin independent louvres deliver even 'shower cooling' across the room, and a dedicated Quiet mode drops noise right down for bedrooms and overnight.
5-year warranty
Parts and compressor backed nationally by Panasonic — and we warrant the installation workmanship on top.
Specifications
Panasonic Z 4.2kW specifications
| Indoor unit | CS-Z42AKRW |
| Outdoor unit | CU-Z42AKR |
| Cooling capacity | 4.2kW |
| Heating capacity | 5.1kW |
| EER (cooling efficiency) | 3.53 |
| COP (heating efficiency) | 3.56 |
| Energy stars (average zone) | 3.5★ cooling · 2.5★ heating |
| Refrigerant | R32 |
| Power supply | single-phase |
Compare units
Panasonic Z 4.2kW vs the other 3.5kW units we install
Same room size, different money and features — here's how the Panasonic Z 4.2kW stacks up against every 3.5kW-class unit on our price list. Green marks the strongest figure in each row.
| Spec | Premium Panasonic RZ 3.5kW CS-RZ35AKRW | ★ Most popular Premium Panasonic Z 3.5kW CS-Z35AKRW | Premium Panasonic RZ 4.2kW CS-RZ42AKRW |  Premium Daikin Cora 3.5kW FTXV35WVMA | Premium Daikin Alira X 3.5kW FTXM35YVMA | ★ Most popular This unit Panasonic Z 4.2kW CS-Z42AKRW | Premium Daikin Cora 4.6kW FTXV46WVMA | Premium Daikin Alira X 4.6kW FTXM46WVMA |  Value Midea Athena 3.6kw specs on Athena page |
|---|---|---|---|---|---|---|---|---|---|
| Supply + installed | from $2,075best | from $2,230 | from $2,285 | from $2,340 | from $2,525 | from $2,595 | from $2,845 | from $3,090 | from $1,770 |
| Cooling | 3.5kW | 3.5kW | 4.2kW | 3.5kW | 3.5kW | 4.2kW | 4.6kW | 4.6kW | — |
| Heating | 3.8kW | 4kW | 5.1kW | 3.7kW | 3.7kW | 5.1kW | 4.7kW | 4.7kW | — |
| Cooling range | — | — | — | 0.9–4.2kW | 1–4.2kW | — | 0.9–5.5kW | 0.9–5.5kW | — |
| EER (cooling efficiency) | 4.33 | 4.33 | 3.53 | 4.32 | 4.38best | 3.53 | 3.83 | 3.95 | — |
| COP (heating efficiency) | 4.38 | 4.38 | 3.56 | 4.81 | 4.89best | 3.56 | 4.23 | 4.52 | — |
| Energy stars (cooling) | 4★* | 4★* | 3.5★* | 5★best | 5★best | 3.5★* | 4★ | 4.5★ | — |
| Quiet mode | Yes | Yes | Yes | 19 dB(A)best | 19 dB(A)best | Yes | 26 dB(A) | 26 dB(A) | — |
| Wi-Fi / app control | Optional adaptor | Built-in | Optional adaptor | Optional adaptor | Built-in | Built-in | Optional adaptor | Built-in | — |
| Air purification | Anti-bacterial filter | nanoe™ X (24/7) | Anti-bacterial filter | Deodorising filter | Streamer (built-in) | nanoe™ X (24/7) | Deodorising filter | Streamer (built-in) | — |
| Airflow | Adjustable louvres | AEROWINGS twin louvre | Adjustable louvres | Coanda + Intelligent Eye | Coanda + Intelligent Eye | AEROWINGS twin louvre | Coanda + Intelligent Eye | Coanda + Intelligent Eye | — |
| Dedicated circuit | Usually not needed | Usually not needed | Required | Usually not needed | Usually not needed | Required | Required | Required | — |
| Warranty | 5-year parts and compressor | 5-year parts and compressor | 5-year parts and compressor | 5-year parts and labour | 5-year parts and labour | 5-year parts and compressor | 5-year parts and labour | 5-year parts and labour | — |
"Best" marks the strongest figure in each row across these units. * average-zone rating; others are Perth's hot zone. Prices are live from our pricing system, supply and installed on a standard back-to-back install, inc GST.
Other Panasonic Z sizes
Panasonic Z 4.2kW — common questions
How much does the Panasonic Z 4.2kW cost installed in Perth?
From $2,595 inc GST, supply and installed as a standard back-to-back install. That covers the unit, mounting, up to 3 metres of pipework, the electrical connection and isolator, and full commissioning. Longer pipe runs, height access or switchboard work lift the price — you get an exact fixed quote free before any work starts.
What size room does the Panasonic Z 4.2kW suit?
As a Perth rule of thumb, 4.2kW of cooling comfortably handles a room of around 28 m² — standard bedroom, small living. Ceiling height, insulation, and big west-facing windows shift the answer, which is why we always confirm sizing at the quote.
Does the Panasonic Z 4.2kW need its own electrical circuit?
Yes — anything above 3.5kW needs a dedicated circuit from the switchboard. Because we're dual-licensed in air conditioning and electrical, the circuit, isolator and any switchboard work are part of the same quote and the same visit — no second tradie.
What warranty does the Panasonic Z 4.2kW come with?
Panasonic 5-year parts and compressor warranty, plus our own workmanship warranty on the installation. Installation by an ARC-licensed tech and a licensed electrician — the same team, on the same job — protects your manufacturer warranty; an unlicensed install is the usual reason a claim gets knocked back.
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Panasonic Z 4.2kW, from $2,595 installed
One licensed local team for the whole job — the unit, the install, and the electrical. Free quote, fixed price, no surprises on the day.