- Provide a uniform desired set temperature throughout the Swimming Season no matter what the weather is like.
- Are not dependent on direct sunrays.
- Because “P+” Heat pumps are using renewable energy, they are safer and cleaner to run than a gas/diesel fossil fuel burner.
- Properly sized “P+” Heat pumps create enough economical heat for all year Heating.
- “P+” Heat pumps are more efficient (average efficiency of 300 to 500%) therefore they cost less to run than gas/diesel heaters or electric elements.
- Easy to install and operate.
- Unlike the general belief that solar heating is free, people forget the cost of pumping the pool water through the solar panel on the roof, which can cost as much as half of the heat pump’s running cost.
- “P+” has the widest range of Heat pumps. They come in 34 different models from 6 to 250kw output units.
- Are made of high quality components, therefore, less unit failures.
- Low operating, energy and maintenance costs.
- Have long life expectancy and are very durable.
- Automatically maintains the desired temperature.
- Excellent after sales service and free experienced technical support.
- Two years mechanical warranty and 30 years limited warranty against corrosion within the titanium tubing of the Heat Exchanger.
“Performance Plus” has the largest range of heat pumps in New Zealand with well over 36 different models. Different machines are used for different applications and have different efficiencies depending on that application. Applications with higher water temperatures such as domestic hot water and underfloor heating have a reduced efficiency but when measured against electric elements or gas the beneficial savings are quickly apparent. Swimming pool heating offers even higher unit efficiencies due to lower water temperatures. In a typical scenario of underfloor heating, for every dollar spent on electricity you can expect 3 dollars of heat created. For heating a swimming pool heating in summer, for every dollar spent you could get a return of 4‐6 dollars of heat depending on the conditions.
Our “Performance Plus” Heat Pumps are durable and versatile. They can safely operate in ambient temperatures from ‐10°C to +45°C. Each heat pump incorporates high efficiency scroll or rotary compressors. Evaporator coils are epoxy coated and use inner grooved (rifled) tube for better heat transfer. This is possible using technology developed by Hot Water Heat Pumps Ltd.
All Horizontal discharge models have single compressors, are supported on rubber mounts, and are isolated in a built‐in insulated compartment to minimize vibration and noise.
When the ambient temperature falls, particularly when it gets below 10°C, ice can form on the cooling coils. This lowers the units’ efficiency to heat water. Using an electronic deice controller our “Performance Plus” heat pump offers a fast and efficient method of melting ice. When reverse cycle is initiated the compressor keeps running, the fan stops, and the refrigerant reverses direction putting heat directly into the cooling coil. In this condition, it takes 3 to 5 minutes every half hour to clear the cooling coil of ice for efficient pool heating.
We have used the reverse cycle defrost method for pool heating heat pumps since 1983 in New Zealand.
All “Performance Plus” Heat Pumps are fitted with protection systems so in the event of a malfunction damage isn’t caused to the unit. Hi/Low pressure controls (HP and LP switches), anti short cycle timers, circuit breakers, electronic de‐ice controller and temperature controller are essential and are fitted in all of our swimming pool heat pumps. Our purpose built flow switch ensures the heat pump cannot operate without water flow. Should there become a problem the compressor will shut down, a service agent should be contacted to investigate the problem.
- Compressor high and low pressure refrigeration safety cut out switch (auto reset).
- Time delay for anti short cycle compressor protection.
- Compressor overload protection.
- Built in circuit breaker for fans and control circuit protection.
- Time and temperature controlled electronic de‐ice switch for rapid defrosting of the evaporator coil during low ambient operation.
- Built in water flow switch is supplied as standard, this stops the heat pump in the event of the filter pump stopping.
Dual Purpose heat pumps were introduced to the New Zealand market by HWHP Ltd in 1983. “Performance Plus” Dual Purpose Heat Pumps offer the convenience of one unit capable of heating a pool and a spa to two separate temperatures without the need to divert water. The Dual Purpose system is designed so the spa takes priority and will switch automatically between heating the pool or spa as required. This can save some of the expense of buying two heat pumps, save space and lower operating costs.
