Q-ton Hot Water Heat Pump

The Q-ton is a high-efficiency hot water heat pump that utilises CO₂gas to provide sanitary-grade hot water and space heating solutions. Ideal for various commercial applications, including aged care facilities, hospitals, breweries, wineries, food processing plants, hotels, gyms and more, Q-ton stands out for its exceptional performance in temperatures as low as -25°c and it’s superior reliability. Its innovative use of CO₂ and advanced component design allows it to offers huge reductions in both power consumption and carbon emissions, making it perfect solution for environmentally responsibly businesses.

POWER: Three Phase | HEATING CAPACITY: 30.0kW

Key features

Delivers 90°C hot water in as low as -25C ambient temperatures
Easy to use touch screen control with advanced functions
Offers massive reductions in both running costs and Co2 emissions
high quality, robust technology and components
Much smaller footprint compared to gas boilers
Modular installation from 30Kw up to 480Kw (1 to 16 units)

Q-ton is an air-to-water heat pump which utilises patented compressor technology and CO2 gas as a refrigerant to offer a reliable and efficient hot water solution for a range of commercial applications. The Q-ton utilises the world’s first two-stage compressor (combining rotary and scroll technology) to maintain high efficiency and significantly high performance, even with cold outside air temperatures.

In addition to offering a sanitary grade hot water solution, Q-ton can now also be used in variety of space heating applications with return temperatures below 30°C. This is addition to delivering sanitary grade hot water, offering even further cost savings and efficiencies.

How Does Q-ton Work?

Q-ton works by absorbing heat contained in the air and then the world’s first patented rotary scroll (2 stage) compressor, compresses the CO2 refrigerant before transferring this absorbed heat to the water instantaneously supplying hot water from 60°C to 90°C.

Q-ton delivers outstanding performance and environmental benefits to a varied number of applications and is exceptionally energy efficient ensuring large reductions in both power consumption and carbon emissions.

HOSPITALS

AGED CARE

RESTAURANTS

EDUCATION

MANUFACTURING

GYMS & SPAS

APARTMENTS

OFFICES

HOTELS

BREWERIES & WINERIES

FOOD PROCESSING

The Q-ton is manufactured in our state of the art facility in Japan which a ISO 9001 approved factory developed specifically for the manufacture of high quality and high performance air conditioners and heat pumps.

SHENE DISTILLERY

ALCHERINGA AGED CARE

HOSPITAL KBC KRIZINE

BRISTOL UNI

ACTIVA HEALTH CLUB

HOTEL EL COLOQUIO DE LOS PERROS

COLNE HOUSE

LANCASTER HALL HOTEL

Unique Patented Compressor Technology

The Q-ton hot water heat pump utilises the world’s first patented rotary scroll (2 stage) compressor and CO2 gas to efficiency deliver hot water from 60°C to 90°C in temperatures as low as -25°C

SELECT A CAPACITY TO VIEW SPECIFICATIONS

THREE PHASE

Specifications

SELECTED MODEL: SRK20ZSA-W / DXK06ZSA-W

Capacity

COOLING:

HEATING:

Energy Labels

Hot

COOLING:

HEATING:

Average

COOLING:

HEATING:

Cold

COOLING:

HEATING:

Dimensions (HxWxD)

INDOOR:

OUTDOOR:

What is a CO₂ heat pump hot water system and how does it work?

A CO₂ heat pump hot water system is an energy-efficient system that utilizes carbon dioxide (CO₂) as a natural refrigerant to heat water. It operates by extracting ambient heat from the surrounding air, even in low temperatures, and transferring it to the water through a refrigeration cycle. This process involves the CO₂ refrigerant absorbing heat, being compressed to increase its temperature, and then releasing the heat to warm the water before the cycle repeats. Unlike traditional gas or electric water heaters, this allows CO₂ heat pumps such as the Q-ton to achieve a Coefficient of Performance (COP) of 4.3 meaning they generate 4.3 times more heat energy than the electricity they consume. This results in significant energy savings and a reduced carbon footprint.

What are the benefits of a CO₂ heat pump hot water system?

CO₂ heat pump hot water systems such as the Q-ton offer numerous advantages over traditional gas and electric water heaters, including:

Superior Energy Efficiency – They use up to 60% less energy than electric water heaters, significantly lowering electricity costs.
Lower Carbon Emissions – By utilizing CO₂ as a natural refrigerant, these systems produce far fewer greenhouse gas emissions compared to gas or traditional heat pumps.
High-Temperature Hot Water – Unlike standard heat pumps, CO₂ systems can heat water up to 90°C, making them ideal for commercial applications.
Reliability in All Climates – CO₂ heat pumps maintain high efficiency even in cold temperatures, ensuring consistent performance year-round.
Long-Term Cost Savings – With a lifespan of 15+ years and low maintenance requirements, these systems provide a great return on investment.
Future-Proof Technology – Many governments offer rebates for installing energy-efficient systems like CO₂ heat pumps, making them a smart choice for long-term sustainability.

What industries and sectors are suitable for CO₂ heat pump hot water systems?

CO₂ heat pump hot water systems are ideal for industries that require a reliable, energy-efficient, and sustainable hot water supply. Some of the key sectors that benefit from this technology include:

Hospitality & Accommodation – Hotels, resorts, and serviced apartments need large volumes of hot water for guest rooms, kitchens, and laundry facilities.
Healthcare & Aged Care – Hospitals and aged care facilities require consistent and hygienic hot water for patient care, cleaning, and sterilization.
Fitness & Recreation – Gyms, swimming pools, and sports centers benefit from high-temperature water for showers, spas, and pool heating.
Food & Beverage Processing – Breweries, dairies, and food production facilities rely on large-scale hot water for processing, cleaning, and sanitation.
Manufacturing & Industrial – Factories, textile plants, and pharmaceutical industries require reliable and efficient hot water for production processes.
Education & Public Facilities – Schools, universities, and government buildings can benefit from CO₂ heat pumps to meet high daily hot water demands while reducing energy costs.

Why is the Q-ton CO₂ heat pump better than electric or gas water heaters?

The Q-ton CO₂ heat pump outperforms traditional electric and gas water heaters in efficiency, sustainability, and cost savings. Unlike gas boilers, Q-ton co2 heat pump produces zero on-site emissions and operates with up to 76% lower CO₂ output. Compared to electric heaters, Q-ton co2 heat pump uses up to 60% less energy thanks to its advanced heat pump technology, which extracts heat from the air instead of relying solely on electricity. This results in lower operating costs, reduced carbon footprint, and compliance with sustainability targets, making it the superior choice for commercial hot water applications.

Why are CO₂ heat pump hot water systems better than electric or gas water heaters?

CO₂ heat pump hot water systems outperform traditional electric and gas water heaters in efficiency, sustainability, and cost savings. Unlike gas boilers, co2 heat pumps such as the Q-ton produces zero on-site emissions and operates with up to 76% fewer CO₂ emissions. Compared to electric heaters, Q-ton uses up to 60% less energy thanks to its advanced heat pump technology, which extracts heat from the air instead of relying solely on electricity. This results in lower operating costs, reduced carbon footprint, and compliance with sustainability targets, making it the superior choice for commercial hot water applications.

How can I install a CO₂ heat pump hot water system?

FEATURES
CONTROL OPTIONS
DOWNLOADS

Q-ton

Easy operation

Easy to use touchscreen control with advanced functions including user friendly scheduling options and one-touch fill up.

Environmentally Responsible

Produces 74% than an electric heater and 76% less emissions than a gas boiler.

High Efficiency

High coefficient of performance (4.3 in intermediate season) delivering massive reductions in both running costs and CO2 emissions.

High Performance

Delivers 60°C to 90°C water supply in -25°C ambient temperature. Ability to maintain 100% capacity down to -7°C.

Long Term Reliability

High quality, robust technology and components offering long life expectancy.

Modbus Compatibility

Ability to send messages via Modbus communication via the RCI-MDQE interface kit.

Space heating

Q-ton can be used in variety of space heating applications including underfloor heating and low temp radiators.

Space Saving Design

Much smaller footprint compared to gas boilers offers easier installation and design flexibility.

SELECT CONTROLLER TYPE FOR DETAILS:

RC-Q1EH

Easy to use, touch screen LCD screen
Large 3.8 inch full dot display
Backlight Function
Easy to use manual operation to manually fill water tank to suit demand
Variety of schedule options including weekly and daily timers and a peak-cut timer.

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TECHNICAL SPECIFICATIONS

	A	B	C	D
1	Model			ESA30EH2-25
2	Power source			3 Phase 380V±5%, 400V±5%, 415V±5%, 50/60Hz
3	Operation to top up (Intermediate season)*1	Heating capacity	kW	30
4		Water amount	L/min	8.97
5		Power consumption	kW	6.98
6		COP	-	4.3
7	Operation to top up (cold season)*2	Heating capacity	kW	30
8		Water amount	L/min	5.06
9		Power consumption	kW	10.73
10		COP	-	2.8
11	Operating sound pressure (In intermediate season)*1, 3		dB(A)	58
12	Operating sound power (In intermediate season)*1		dB(A)	70
13	External dimensions (HXWXD)		mm	1690 x 1350 x 720 + 35 (water pipe connection)
14	Current	Maximum	A	21
15	Current	Starting	A	5
16	Unit weight		kg	Off: 375 During operation: 385
17	Colour			Sutcco white (4.2Y 7.5/1.1 Approx)
18	Compressor	Type x Pcs		Hermetic inverter compressor x 1
19	Compressor	Nominal output	kW	6.4
20	Refrigerant	Type		R744 (CO2)
21	Refrigerant	Charged amount	kg	8.5
22	Refrigerant Oil	Type		MA68
23	Refrigerant Oil	Charged volume	cc	1200
24	Crackcase Heater		W	20
25	Anti-freezing heater	For water pipe	W	21 x 3
26		For drain pan	W	40 x 2
27		For drain hose	W	16 x 3
28	Heat exchanger, air-side	Type		Copper pipe straight fin type
29	Heat exchanger, water side (gas cooler)	Type		Copper pipe coil, indirect heat exchanger
30	Heat exchanger, water side (gas cooler)	Possession quantity of water		10
31	Fan	Type		Axial flow type (direct coupled motor) x 2
32		Output x pcs	W	386 x 2
33		Air volume	m3/min	260
34		External static pressure	Pa	50
35	Water pump	Type x output		Non-self-suction spiral type inverter pump × 95W
36		Materials contacting water		PPS
37		Actual pump head	m (kPa)	5m (49kPa) @ 17Litre/min
38	Usage temperature range	Outdoor air temperature	°C	-25 to +43
39		Feed water inlet temperature	°C	Top up 5-35, Warm up 35-63
40		Hot water outlet temperature	°C	60 - 90
41	Water pressure range		kPa	500 or lower (Keep water pressure more than 0kPa at the inlet of heat pump water heater)
42	Defrost			Hot gas type
43	Vibration and sound proofing devices			Compressor ;placed on anti-vibration rubber and wrapped with sound insulation
44	Protection devices			High pressure switch over current protection, power transistor overheat protection and anomalous high pressure protection
45	Pipe connection	Feed water inlet		Rc3/4 (Copper 20A)*4
46		Hot water outlet		Rc3/4 (Copper 20A)*4
47		Drain water outlet		Rc3/4 (Copper 20A)*4
48	Design pressure		MPa	High pressure:14.0, Low pressure: 8.5
49	IP Code			IP24
50	1. Performance of operation to top up during intermediate season shows the capacity measured under the conditions that outdoor temp is 16°C DB/12°C WB, water inlet temp is 17°C and how water outlet temp is 65°C.
51	2. Performance of operation to top up in cold region shows the capacity measured under the conditions that outdoor air temperature is -7°C DB/-8°C WB, water inlet temperature is 5°C and hot water outlet temperature is 90°C excluding heater for anti-freezing water (191W).
52	3. Operating sound shows a value is measured at 1m in front of the unit and 1m above the floor in an echoic room where the sound is slightly resonated. Accordingly, if the unit is installed on an actual site, it is normal that the measured sound levels may be higher than the value shown above, due to surrounding noise and echo within the room.
53	4. Pipe size 20A=DN20=20mm=3/4in.
54	5. The actual hot water outlet temp may vary ±3°C from target temp according to the change of outdoor air temp and water inlet temp. If feed water inlet temp is 30°C of high and outdoor air temp is 25°C or higher the water temp may be controlled to ensure temp does not increase too much.
55	6. Ensure clean water is used. Water quality should follow the standard which MTH specifies. If the water quality if not up to standard it may cause issues within the unit such as scale build-up and/or corrosion.
56	7. These articles mentioned above may vary without notice accordingly to development status.
57	8. Electrical installation work must be performed by an electrical installation service provider qualified by a power provider of the country. Electrical installation work must be executed according to the technical standards and other regulations applicable to the electrical installations in the country.

SINGLE ROOM SOLUTIONS

ENTIRE HOME SOLUTIONS

MULTIPLE ROOM SOLUTIONS

COMMERCIAL SOLUTIONS

Q-ton Hot Water Heat Pump

Key features

What is Q-ton?

Features and Benefits

COMMERCIAL APPLICATIONS

HOSPITALS

AGED CARE

RESTAURANTS

EDUCATION

MANUFACTURING

GYMS & SPAS

APARTMENTS

OFFICES

HOTELS

BREWERIES & WINERIES

FOOD PROCESSING

Accreditations

CASE STUDIES

SHENE DISTILLERY

ALCHERINGA AGED CARE

HOSPITAL KBC KRIZINE

BRISTOL UNI

ACTIVA HEALTH CLUB

HOTEL EL COLOQUIO DE LOS PERROS

COLNE HOUSE

LANCASTER HALL HOTEL

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Case Studies

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