Note: This is a bulky product that requires special logistics and returns for "change of mind" are not accepted. Click here for help choosing a heat pump.
Pentair UltraTemp HXi 35kW Quiet Inverter Heat Pump w/WiFi (Three Phase)
Energy efficient and silent heat pump with Wi-fi module automatically heats or cools your pool according to the desired temperature.
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Same Day Dispatch
On orders placed by 12pm AEDT
Price Match
Quick, simple & easy
Secure Shipping with Tracking
Guaranteed to arrive safely
Flat rate shipping
Per order Australia-wide
Free, Easy Returns
Hassle-free and convenient
Customer Service & Support
Dedicated call center
Best of Power & Efficiency
The Pentair UltraTemp HXi heat pump automatically heats or cools your pool according to the desired temperature. It adapts to outdoor conditions to ensure optimum bathing comfort while minimising energy consumption.
Equipped with full-inverter technology, the new Pentair UltraTemp HXi heat pump delivers powerful, yet quiet, performance, thanks to the combination of a variable speed compressor and fan motor. They adjust their speed automatically following the operating mode selected by the user via the colour touchscreen or optional app.
Benefits:
High Efficiency
With a COP as high as 14.5, the UltraTemp offers over six times more heat power than electrical power input. Giving you exceptional performance at the lowest running cost.
Titanium Threaded Heat Exchanger
Provides maximum corrosion/erosion resistance, and improves heat transfer efficiency by up to 30%. Its rotating water flow also improves descale ability.
Multi-function Modes
Switches mode between heating and cooling and offers auto defrost by changing the refrigerant flow path.
Electronic Expansion Valve
The EEV supports automatic adjustment of refrigerant flow rate and makes the system work under optimized conditions for the purpose of fast heating and energy saving. The EEV is better than capillary tube.
Coloured LCD Touchscreen
Easy to use and intuitive design for easy programming. Clear digital display for better visibility. Control module can either be wall-mounted or free standing.
Colour-coded Ports
Comes in very easy to identify coloured ports. BLUE for the cold water inlet and RED for the warm water outlet.
Electroplated Condenser
Repels water for quick defrosting, corrosion protection and accelerates the evaporation rate improving heat transfer efficiency.
Wi-Fi Module
Every unit comes with a Wi-Fi module. Uses 'Handy-Heat app which allows you to control the unit anywhere in the world. Module cable can be extended to improve signal range.
Plastic/Metal Enclosure
Made of rust-proof ABS top front panels and powder- coated steel rear panel for protecting delicate screen fins.
Highlights:
- Quiet - 'Silent Mode' slows down the variable speed DC fan, reducing noise for whisper quiet operation.
- Easy to Use - Colour LCD touchscreen makes set-up and operation clear and simple.
- Powerful & Efficient - Inverter compressor gives you the power to heat up quick and efficiency to maintain.
- Tough - UV resistant, rust- proof thermoplastic case designed for Australian conditions.
Features:
- Pentair heat pumps transfer heat from the air into the pool using only a fraction of the energy required to heat the pool directly.
- The UltraTemp HXi heat pump offers best in class efficiency with COP (coefficient of performance) ratings far in excess of standard heat pumps.
- The UltraTemp HXi heat pumps feature variable speed compressors and fan motors (full inverter). These operate at reduced speed when full power is not required, cutting electricity costs and noise.
- Pentair heat pumps use the EPA-recognized, environmentally safe, non-ozone depleting R32 refrigerant. This allows the UltraTemp HXi heat pump to be awarded the Eco Select brand accolade for environmental responsibility.
- 100% titanium heat exchanger assures corrosionfree performance for extra long life and value.
- Full-colour, LCD touchscreen displays an intuitive, menu with easy to follow icons and messages.
- Self-diagnostic software continuously monitors system for peak performance.
- Thermostatic Expansion Valve (TXV) controls refrigerant flow and optimises efficiency over a wider operating temperature range.
- Automatic defrost feature senses refrigerant temperature and helps prevent the UltraTemp heat pump from freezing, allowing the unit to operate effectively at lower temperatures.
- Perfect companion to IntelliCenter or EasyTouch Control Systems—heat pump control can be transferred to a centralised control system that manages all your pool/spa operations and poolscape features.
- Easy barrel union plumbing connections.
Ventilation Requirements:
The diagram displays the minimum outdoor ventilation area required for optimum performance.
However, each installation must also be evaluated, taking into account the prevailing local conditions such as proximity and height of walls, and proximity to public access areas. The UltraTemp Heat Pump must be placed to provide clearances on all sides for maintenance and inspection.
Water Chemistry Requirements:
Proper chemical balances are necessary for sanitary bathing conditions as well as ensuring your heat pump’s long life. Be sure to keep your chemical and mineral concentration levels within the values indicated in the table below. Failure to maintain proper water chemistry may cause damage to the UltraTemp Heat Pump.
| Test | Recommended Level |
|---|---|
| Free Chlorine | 1.0 to 3.0 ppm (3.0 to 5.0 spa) |
| Bromine | 2.0 to 4.0 ppm (3.0 to 5.0 spa) |
| pH | 7.4 to 7.6 |
| Total Alkalinity (TA) with Calcium, Lithium, and Sodium Hydrochlorite | 80 to 100 ppm |
| Total Alkalinity (TA) with Sodium Dichlor, Trichlor, Chlorine Gas, and Bromine Compounds | 100-120 ppm |
| Calcium Hardness (CH) | 200 to 400 ppm |
| Cyanuric Acid (Stabiliser) | 30 to 50 ppm (less than 30ppm with ORP controllers) |
| Total Dissolved Solids (TDS) | Less than 2000 ppm |
| Copper | 0 ppm |
Concentration levels taken from “Basic Pool and Spa Technology” published by NSPI (National Spa and Pool Institute).
Warranty:
- 15 years: Titanium Heat Exchanger.
Guarantee against corrosion when used with water chemistry in line with guidelines specified in UltraTemp owner’s manual. - 15 years: Cabinet.
Guarantee against cabinet failure due to environmental factors when installed in accordance with UltraTemp owner’s manual. Does not include physical damage caused by external causes. Does not include discolouration. - 5 years: Compressors.
Guarantee against manufacturing defects. - 3 years: Refrigeration circuit
Guarantee against manufacturing defects on refrigeration circuit and components. Does not include temperature sensors or limit switches, as these are replaceable components. - 3 years: Parts.
Guarantee on all other parts. - 1 year: On-site Labour
UltraTemp HXi Series Specifications:
| Model | UTHP-9-HXi | UTHP-12-HXi | UTHP-16-HXi | UTHP-20-HXi | UTHP-24-HXi | UTHP-28-HXi | UTHP-35-HXi | |
|---|---|---|---|---|---|---|---|---|
| PERFORMANCE CONDITION: Ambient 27°C / Water 26°C in / 28°C out / 80% Humidity | ||||||||
| Capacity (Kw) | 2.3~ 9.0 | 2.5~12.0 | 3.1~16.0 | 3.70~20.0 | 6.5~24.3 | 7.1~28.2 | 8.15~35.1 | |
| Power (Kw) | 0.16~1.41 | 0.18~1.90 | 0.22~2.54 | 0.27~3.08 | 0.45~3.74 | 0.49~4.41 | 0.57~5.18 | |
| COP | 14.2~6.4 | 14.1~6.3 | 13.9~6.3 | 13.8~6.2 | 14.5~6.5 | 14.3~6.4 | 14.3~6.8 | |
| PERFORMANCE CONDITION: Ambient 15°C / Water 26°C in / 28°C out / 70% Humidity | ||||||||
| Capacity (Kw) | 1.7~7.0 | 2.1~9.0 | 2.4~12.6 | 2.6~14.5 | 4.5~19.0 | 5.1~21.0 | 7.8~24.4 | |
| Power (Kw) | 0.24~1.46 | 0.29~1.91 | 0.34~2.73 | 0.38~3.15 | 0.62~3.88 | 0.71~4.38 | 1.07~5.55 | |
| COP | 7.2~4.8 | 7.1~4.7 | 7.0~4.6 | 6.9~4.6 | 7.3~4.9 | 7.2~4.8 | 7.3~4.4 | |
| PERFORMANCE CONDITION: Ambient 35°C / Water 30°C in / 28°C out / 41% Humidity | ||||||||
| Capacity (Kw) | 3.15 | 3.75 | 5.61 | 7.85 | 8.93 | 11.7 | 14.63 | |
| Power (Kw) | 1.4 | 1.58 | 2.2 | 3.18 | 3.43 | 4.44 | 5.41 | |
| EER | 2.25 | 2.37 | 2.55 | 2.47 | 2.61 | 2.65 | 2.7 | |
| TECHNICAL SPECIFICATIONS | ||||||||
| Power supply | 230-240VAC 50Hz | 400-415V 3~ 50Hz | ||||||
| Electrical Connection | 10A Plug | 15A Plug | Hard Wired | Hard Wired | Hard Wired | Hard Wired | Hard Wired | |
| Max Current (A) | 9.0 | 10.9 | 16.6 | 17.5 | 22.7 | 10.8 | 11.7 | |
| Max Power (kW) | 2.10 | 2.49 | 3.80 | 3.80 | 4.96 | 6.30 | 7.23 | |
| Compressor Type | Mitsubishi | Panasonic | ||||||
| Water flow (LPM) | 53 | 66 | 86 | 100 | 141 | 158 | 230 | |
| Sound Pressure (1m dBa) | 39~50 | 41~52 | 42~53 | 43~54 | 44~55 | 45~56 | 47~57 | |
| Refrigerant | R32 | |||||||
| Water Connection | 50mm | |||||||
In The Box:
- 1 x Heat Pump Unit
- 1 x Wi-fi connection module
- 1 x Owners Manual
- 2 x Barrel unions
- 2 x Drain Hose
- 2 x Elbows (for drain hose connection)
- 2 x Plugs (for unused condensate drains)
- 4 x Anti-vibration pads
| SKU | UTHP-35-HXi |
|---|---|
| Barcode | UTHP-35-HXi |
| Package Length | 120 cm |
| Package Width | 101 cm |
| Package Height | 55 cm |
| Warranty | 15 Years Heat Exchanger, 5 Years Compressor, 3 Years All Parts |
| Brand | Pentair |
| Model | ULTRATEMP HXI 35kW UTHP-35-HXi (Three Phase) |
| Product Type | Heat Pump |
| Shipping Type | Bulky - Oversized |
| Heat Capacity (kW) | 35.1 |
| Power Input | 7.23 kW |
| C.O.P. | 14.3~6.8 |
| Max Amps | 11.7 |
| Connection Type | Hardwired (Three Phase) |
| Water Flow Rate | 230 |
| Noise (Decibels) | 47~57 at 1m dB (A) |
| Plumbing | 50mm |
Shipping
Same-day dispatch applies to orders received by 12.00 pm (AEST) during business days. Orders received after 12.00 pm and on weekends or public holidays will be dispatched on the next business day.
Delivery fees are $19.95 flat-rate per order Australia-wide, no matter how many products are in it. Orders containing bulky items like sand filters, acoustic boxes, heat pumps, pool covers, and pool slides may incur additional fees as they require specialized carriers.
Below are the estimated time to arrival in business days once an order is shipped.
| Destination | Sydney | NSW | VIC | QLD | SA | WA/NT |
|---|---|---|---|---|---|---|
| Business Days | 1 - 2 | 2 - 4 | 2 - 4 | 2 - 4 | 3 - 4 | 5 - 6 |
Rural and remote addresses, where delivery is not provided every day, may take longer.
Returns
Satisfaction Guarantee: If you are not satisfied with a product for any reason, you are welcome to return it to us for a full refund or exchange within 30 days of the purchase date - even if you have used the product. Returns are free, and we will cover return shipping.
We take full responsibility for the safe arrival of the products that you order from us. We will replace at our expense any product that arrives faulty, damaged during transit, or is the incorrect product. Click here for details
If you have any questions about our shipping policy or our return policy, please contact us on 1300 766 619 or through our contact us form.