MAXA Total-One

MAXA Total-One

One compact system. Total home comfort.

Air conditioning, heating and domestic hot water from a single MAXA system. A premium single-phase inverter outdoor unit drives up to three indoor hi-wall heads and an integrated 190-litre stainless steel hot water cylinder — with a thermodynamic COP of up to 3.9 for hot water that costs a fraction of a traditional electric tank.

One system for cooling, heating and hot water

Traditional electric hot water tanks run on a 1:1 efficiency ratio — one kilowatt of electricity produces just one kilowatt of heat. The MAXA Total-One is an intelligent thermodynamic system with a COP of up to 3.9: for every kilowatt of electricity it draws, it delivers up to 3.9 kW of usable heat.

By pairing a premium single-phase outdoor inverter compressor with an integrated 190-litre stainless steel hot water cylinder and up to three indoor hi-wall air conditioning heads, the Total-One becomes a complete, unified heating, cooling and hot water network — one compact plant footprint instead of three separate systems. It's the smart choice for apartments with limited plant space and for new all-electric homes alike.

It sits alongside the rest of our air conditioning range, but it's the only unit that also makes your domestic hot water — and, in summer, does it almost for free.

Traditional electric vs MAXA Total-One

Based on a standard Sydney residential tariff of 28.5¢ per kWh for a 2–3 person household.

	Standard 125 L electric tank	MAXA Total-One (190 L)
Daily electricity draw	~11.5 kWh / day	~3.1 kWh / day
Daily operating cost	~$3.28 / day	~$0.88 / day
Estimated annual bill	$1,196 / year	$322 / year
Annual saving	Baseline	Saves ~$874 / year

Figures supplied by MAXA; indicative only. Actual running cost and savings vary with household size, hot-water usage, climate and electricity tariff.

High-performance components

Outdoor condenser plant

Model EXT4M80HR

Cooling capacity: 7.91 kW nominal
Heating capacity: 8.20 kW nominal
Power supply: 230 V single-phase
Nominal current: 24 A
Dimensions (W×D×H): 946 × 410 × 810 mm
Refrigerant: R32 (low-GWP)

Integrated DHW cylinder

Model TNK190HR

Storage capacity: 190 L net
Hot water temp: Up to 55 °C
Energy class: A+
Booster element: 2.0 kW immersion (9.1 A)
Dimensions (W×D×H): 504 × 574 × 1,660 mm
Corrosion protection: Magnesium anode

Indoor hi-wall heads

MAXA Tredis series

TFL26R1: 2.64 / 2.93 kW — bed/office
TFL35R1: 3.52 / 3.81 kW — medium rooms
TFL53R1: 5.28 / 5.42 kW — large lounge
Sleep noise: From 26 dB(A)
Control: Built-in Wi-Fi
Filtration: Silver Ion

Cooling / heating figures shown as nominal cooling / nominal heating. Specifications supplied by MAXA and subject to change; AHHAC sizes and quotes each install to your floor plan.

MAXA Total-One — FAQ

What is the MAXA Total-One?+

It's a single compact system that does three jobs at once — air conditioning, heating and domestic hot water. A single-phase inverter outdoor unit drives up to three indoor hi-wall air conditioning heads and charges an integrated 190-litre stainless steel hot water cylinder, giving you a complete cooling, heating and hot water network from one piece of plant.

How does it make hot water so cheaply?+

Instead of a traditional electric element (a 1:1 ratio — 1 kW of electricity makes 1 kW of heat), the Total-One is a thermodynamic heat pump with a COP of up to 3.9. Every kilowatt of electricity it draws is multiplied into up to 3.9 kW of heat. On a standard Sydney tariff that's an estimated saving of around $874 a year versus a standard electric tank.

Is the hot water really free in summer?+

Effectively, yes. The Total-One's automated Total Energy Recovery Circuit captures the heat extracted from your rooms while the system is cooling and, instead of dumping it outside, redirects it straight into the hot water cylinder. So while you cool your home in summer, your hot water is heated as a by-product.

How many rooms can it cool and heat?+

Up to three rooms, using premium MAXA Tredis indoor hi-wall heads — sized from a 2.64 kW head for bedrooms and offices up to a 5.28 kW head for large lounge rooms. Mix and match the three heads to suit your floor plan.

How quiet is it?+

The Tredis indoor heads use DC variable-speed fan motors and drop to a virtually silent 26 dB(A) in sleep mode — ideal for bedrooms. They also include built-in Wi-Fi for remote control and Silver Ion air filtration to scrub dust and allergens.

What refrigerant and power supply does it use?+

The outdoor unit (model EXT4M80HR) runs on low-GWP R32 refrigerant and a standard 230 V single-phase supply, so it suits most homes without three-phase power. The integrated 190-litre cylinder (TNK190HR) is vitrified enamelled steel with a sacrificial magnesium anode and a 2.0 kW immersion booster.

Can AHHAC install the Total-One in an apartment or new build?+

Yes. Whether you're renovating an apartment with limited plant-room space or building a new home, AHHAC handles the complete mechanical engineering, refrigerant pipe layout and final commission testing across Sydney. Contact us for an itemised quote.

Upgrade your Sydney property to Total-One

Air conditioning, heating and hot water from one system — quoted within 24 hours.

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★★★★★

"AHHAC delivered our 22-zone underfloor system on time, on budget and to spec. The crew were tidy, the documentation was thorough, and the commissioning was textbook."

David Chen

Custom Builder · Mosman, NSW

★★★★★

"We've worked with AHHAC for 17 years. They've installed and serviced our hot water plant across three commercial buildings — and they pick up the phone on weekends."

James Holloway

Strata Manager · Melbourne CBD

★★★★★

"Three mobs quoted us; AHHAC's design was the only one based on a proper heat-loss calculation. The system runs beautifully — the others would've been oversized and expensive."

Janelle Smith

Homeowner · Robina, QLD

One system for cooling, heating and hot water

Traditional electric vs MAXA Total-One

100% free hot water while you cool

MAXA Tredis series fan coils

High-performance components

Outdoor condenser plant

Integrated DHW cylinder

Indoor hi-wall heads

MAXA Total-One — FAQ

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