Madimack InverElite V4 41kW 3-Phase Pool Heat Pump
Madimack InverElite V4 41kW 3-Phase Pool Heat Pump is temporarily out of stock and will ship as soon as it's available.
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Delivery and Shipping Info
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Warranty Information
Warranty Information
Madimack InverElite V4 41kW 3-Phase Pool Heat Pump
Madimack InverElite V4 41kW 3-Phase Pool Heat Pump is temporarily out of stock and will ship as soon as it's available.
Madimack InverElite V4 41kW 3-Phase Pool Heat Pump
The Madimack InverElite V4 41kW is the largest full-inverter pool heat pump in the range, sized for commercial pools and very large residential installations. A peak COP of 18.9 and triple-layered sound insulation make it one of the most efficient and quietest heat pumps available in Australia, running as low as 38.8 dB(A) at one metre. It requires a 400V 3-phase supply, so it suits swim centres, resorts and large homes with three-phase power available.
- RRP $18,517.20 is the manufacturer's recommended retail price.
- Warranty: Madimack's published schedule for the InverELITE V4 is 7 years parts, 15 years compressor and 25 years heat exchanger, plus 1 year on-site labour. Registration within 30 days of installation is required.
- Australian Consumer Law guarantees apply to every purchase, on top of any manufacturer warranty.
- FREE SHIPPING on all Madimack products over $149.00
- Physically Stocked, unlike most "drop-shipping" websites.
- Shipped from VIC, NSW, WA, QLD
Documentation: Specification Sheets & Updated Manuals | Up-to-Date Madimack Recommended Retail Prices
Sizing: View the Madimack Pool Heat Pump Sizing Chart to match an output to your pool volume, or contact our team for a recommendation.
Shipping: Someone may be required to help lift the heater from the delivery truck if a tailgate lifter isn't available.
Note: the 41kW model is the largest in the range and requires a 3-phase power supply. A qualified electrician is needed for installation.
Choose Your Size: InverElite V4 Range
The InverElite V4 is available in 9 outputs. This page is for the 41kW model. View other sizes:
Unsure which size is right for your pool? Check the sizing chart linked above, or contact our team for a recommendation.
Key Specifications
- Heating Capacity (Air 27°C / Water 27°C / 80% humidity): 40.8 kW
- Heating Capacity (Air 15°C / Water 26°C / 70% humidity): 29.0 kW
- COP Range (warm conditions): 18.9~7.0
- COP Range (cool conditions): 7.8~5.0
- Cooling Capacity (Air 35°C / Water 28°C): 20.0 kW
- Rated Input Power: 0.70~5.80 kW
- Rated Input Current: 1.01~8.41 A
- Sound Level at 1 m: 38.8~49.3 dB(A)
- Sound Level at 10 m: 18.8~29.3 dB(A), whisper-quiet
- Recommended Water Flow: 220 L/min
- Power Supply: 400V / 3-Phase
- Electrical Connection: Hard Wired
- Net Dimensions (L × W × H): 1405 × 514 × 1070 mm
- Refrigerant: R32
- Water Connection: 40 mm
- Operating Air Temperature: -20°C to 43°C
- Temperature Set Range: 5°C to 40°C
- Compressor: Twin-Rotary Mitsubishi DC
- Casing: Marine-grade aluminium alloy
Why Choose the InverELITE V4?
World's First 3D Airflow Ventilation: a 3-directional ventilation system that reduces the installation space required while improving efficiency and performance.
Twin-Rotary Mitsubishi DC Compressor: rapid heat-up times paired with a commercial-grade centrifugal fan for exceptional power-to-performance efficiency.
Whisper-Quiet Operation: triple-layered sound insulation of condensed fibre, foam and a metal jacket makes the V4 the quietest heat pump available.
Marine-Grade Protection: a corrosion-resistant aluminium alloy jacket built for harsh Australian conditions.
Quick and Easy Installation: universal external quick-connect plugs simplify the install, and external universal controls let multiple devices connect seamlessly.
User-Friendly Digital Display: a sleek display with advanced features for effortless control and monitoring.
Warranty
- 7 years on all parts
- 15 years on the compressor
- 25 years on the heat exchanger
- 1 year on-site labour
Registration within 30 days of installation is required. Australian Consumer Law guarantees apply to every purchase, on top of any manufacturer warranty. Refer to Madimack's Warranty Schedule for full terms and conditions.
Frequently Asked Questions
What pool size does the InverElite V4 41kW suit?
The 41kW output is the largest in the range, sized for commercial pools and very large residential installations. Match the output to your pool volume using the Madimack sizing chart linked above, or contact our team with your pool dimensions.
Does it need three-phase power?
Yes. This model runs on 400V 3-phase and is hard wired, so a qualified electrician is needed for installation. If you only have single-phase power, the 33kW model is the largest option available.
How quiet is it?
Sound output is 38.8 to 49.3 dB(A) measured at 1 metre, falling to 18.8 to 29.3 dB(A) at 10 metres. The triple-layered sound insulation is what keeps it this quiet for a unit of this size.
Can it heat the pool in winter?
Yes. It operates in air temperatures from -20°C to 43°C and delivers 29.0 kW at 15°C air with 26°C water, at a COP of 7.8 to 5.0. The temperature set range is 5°C to 40°C.
What water flow does it need?
Recommended water flow is 220 L/min, through a 40 mm water connection.
What does the warranty cover?
Madimack's published schedule for the InverELITE V4 is 7 years on parts, 15 years on the compressor and 25 years on the heat exchanger, plus 1 year on-site labour. Registration within 30 days of installation is required, and Australian Consumer Law guarantees apply on top of it.
To the layperson, plumbing sizes and their names can be confusing due to the nominal sizes and naming conventions used.
This is not something we made up. Plumbers and manufacturers have used nominal (meaning ‘by name only’) sizing for decades.
Simply put, in plumbing, named sizes are often not the actual measurements of the pipe, fitting, or part. A PVC pipe called “50mm” or “2"” does not measure 50 mm anywhere. Instead, it follows nominal sizing, an internationally-standardised naming system.
Almost all fittings we use in the pool & spa industry use “pressure PVC” pipe & fittings. Do not confuse with “DWV” or other pipe & fittings and their names and sizes.
Use the Outside Diameter (OD) to check your pipe against fittings. Below is a quick reference for common spa & pool pipe sizes:
| Imperial Name | Metric Name | Pipe Diameter (OD) |
|---|---|---|
| 1/2" | 15mm | ~21.2–21.5 mm |
| 3/4" | 20mm | ~26.6–26.9 mm |
| 1" | 25 mm | ~33.4–33.7 mm |
| 1.5" | 40 mm | ~48.1–48.4 mm |
| 2" | 50 mm | ~60.2–60.8 mm |
| 2.5" | 65 mm | ~75.2–75.5 mm |
To reiterate, these are nominal sizes and are designed to fit matching fittings — not to measure what their name suggests. These are based on PVC Pressure Pipe AS/NZ 1477 Dimensions1.
- º Internal diameters vary slightly by manufacturer and class.
- 1 Not all pool/spa fittings match these dimensions exactly. Some do not follow Australian or international standards. Chinese spas may use proprietary fittings.
Understanding Plumbing Sizes & Nominal Measurements
Plumbing sizes can be confusing. PVC and many other pipe systems use nominal sizes—the size is a name, not the exact measured dimension. This convention is used across most pool and spa systems and other plumbing areas so that pipes and fittings remain compatible.
Why pipe sizes don’t match the measurements
The Nominal Pipe Size (NPS) system standardises pipe dimensions so that pipes, fittings, valves, and accessories interoperate.
Plumbers work with these nominal names every day, but DIYers can be tripped up if they try to match by a tape-measure alone.
How to Measure Pipe Correctly
-
Pipe size is identified by:
- The pipe’s Outside Diameter (OD).
- The fitting’s Inside Diameter (ID) (socket opening).
- Pipe Class / Schedule (e.g., Class 9, 12, 18 or Sch 40) relates to wall thickness and therefore the Internal Diameter (ID) and pressure rating.
- The outside diameter of a fitting is not useful (wall thickness varies by manufacturer).
Hose & Tube Dimensions
Common flexible hose sizes used in pool/spa systems (approximate IDs).
| Imperial Name | Metric Name | Inside Diameter (ID) |
|---|---|---|
| 3/8" | 9–10 mm | ~9 mm |
| 3/4" | 19 mm | ~19 mm |
BSP – British Standard Pipe Thread Sizes
BSP thread names are also nominal. The thread OD will not equal the nominal name.
| BSP Thread Size Naming | Outside Diameter (mm / inch) | TPI |
|---|---|---|
| 1/16" BSP | 7.7 mm / 0.304" | 28 |
| 1/8" BSP | 9.7 mm / 0.383" | 28 |
| 1/4" BSP | 13.16 mm / 0.518" | 19 |
| 3/8" BSP | 16.66 mm / 0.656" | 19 |
| 1/2" BSP / 15 mm | 20.99 mm / 0.825" | 14 |
| 5/8" BSP | 22.99 mm / 0.902" | 14 |
| 3/4" BSP / 20 mm | 26.44 mm / 1.041" | 14 |
| 7/8" BSP | 30.20 mm / 1.189" | 14 |
| 1" BSP / 25 mm | 33.25 mm / 1.309" | 11 |
| 1-1/4" BSP | 41.91 mm / 1.650" | 11 |
| 1-1/2" BSP / 40 mm | 47.80 mm / 1.882" | 11 |
| 2" BSP / 50 mm | 59.61 mm / 2.347" | 11 |
| 2-1/4" BSP | 65.71 mm / 2.587" | 11 |
| 2-1/2" BSP | 75.18 mm / 2.960" | 11 |
| 3" BSP | 87.88 mm / 3.460" | 11 |
| 4" BSP | 113.03 mm / 4.450" | 11 |
| 5" BSP | 138.43 mm / 5.450" | 11 |
| 6" BSP | 163.83 mm / 6.450" | 11 |
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