The Sanden Eco Plus Heat Pump Hot Water System.
Frequently Asked Questions about the Sanden "Eco® Plus" Hot Water Heat Pump 1 - Is the Sanden "Eco® Plus" Hot Water Heat Pump System an energy efficient hot water system? How does it compare to a conventional electric hot water system? You can save up to 80% of your conventional electric hot water energy costs! The Sanden "Eco® Plus" Hot Water Heat Pump System uses only 22% of the energy required by an electric storage hot water system 2 - What are the benefits of the Sanden "Eco® Plus " Hot Water Heat Pump System? Not only does a Sanden "Eco® Plus" Hot Water Heat Pump System help save on energy costs, it also delivers: (a) The Heat Pump Unit
3 - How does a heat pump hot water system work? The Sanden "Eco® Plus" Hot Water Heat Pump System operates like a refrigerator in reverse. It contains a fan that forces air through an evaporator that contains a refrigerant. The heat in the air passes through the evaporator and is absorbed by a natural refrigerant, R744 (CO2), which is ozone friendly and does not contribute to global warming. The warm gaseous refrigerant is circulated in the system via a compressor. As it passes through the compressor, its pressure rises, as does its temperature. This hot refrigerant then passes through a heat exchanger to heat the water, which is finally pumped to the storage tank 4 - What sizes are the Sanden "Eco® Plus" Hot Water Heat Pump System available in? Sanden has several hot water tank sizes to choose from:
Please speak to us about making the best choice for your needs and location. 5 - I don’t understand the use of a CO2 refrigerant by the Sanden "Eco® Plus" Hot Water Heat Pump System. Isn’t CO2 a greenhouse gas and therefore harmful to the environment? Yes, but CO2 has a Global Warming Potential of 1. Carbon dioxide is the baseline measurement of how it will contribute to global warming for a given mass. Our system utilizes less than 1 kg of R744 (CO2) as a refrigerant contained in a closed system at the factory. The installer does not need to charge the heat pump on site. 6 - Why does Sanden "Eco® Plus" Hot Water Heat Pump System use CO2 as a refrigerant?
7 - What is the noise level of the Sanden "Eco® Plus" Hot Water Heat Pump System? The unit is rated at 37dB, which is almost silent. By comparison, a whisper is around 30dB and inside a library is approximately 40dB. 8 - What is the life expectancy of the Sanden "Eco® Plus" Hot Water Heat Pump System? The Sanden HWHP is designed to last for 15 years. The high quality, weather resistant construction of the "Eco®" Hot Water Heat Pump System outdoor module carries a warranty of 6 years, whereas the high quality, extra long life stainless steel storage tank carries a class leading 15 year pro rata warranty 9 - At what temperatures will the Sanden "Eco® Plus"Hot Water Heat Pump System operate effectively? The Sanden HWHP will operate effectively between minus 10 and plus 43 degrees C, without the need for an electric booster element. It is also fitted with in built freeze protection, making it suitable for all climates. Compared with a conventional electric system, Sanden’s Japanese-made heat pump features up to 50 per cent faster heat recovery. In ambient air of 20oC, it takes just 4 hours to heat 315 litres of water from 17oC to 63oC. An in-built freeze protection cycle makes the Hot Water Heat Pump system suitable for all of Australia’s climates throughout the entire year. Further, it has an automatic heating cycle, ideal for use with off-peak power and does not require a backup booster. All Sanden stainless steel tanks are Australian-made, fully insulated for minimal heat loss and have been mains pressure rated. 10 - Does the Sanden "Eco® Plus" Hot Water Heat Pump require the assistance of an electric booster element to heat water, when outside ambient temperatures are very low? No, unlike other competitor HWHP systems, the Sanden Eco® HWHP system does not require an electric booster element 11 - Can I operate the Sanden "Eco® Plus" Hot Water Heat Pump System on Off-Peak Tariffs? Yes, please refer to the Installation Manual for details. There are no special settings for off peak connection. Simply ensure that the off peak tariff supplies a minimum of 5 hours continuous power to the Sanden HWHP. 12 - Tank sizes and typical applications: |
A typical Sanden Heat Pump
|
Tank Size |
No of persons |
Typical dwelling |
Off peak / Continuous? |
160 Litre |
1-2 |
Unit / Town House |
Continuous only |
250 Litre |
2 - 4 |
Residential |
Both |
300 Litre |
4 - 6 |
Residential |
Both |
315 Litre |
4 - 6 |
Residential |
Both |
Model |
Tank Size (capacity) |
Dimensions |
GAUS-160FQTS |
160 Litre |
Height 970mm, diameter 621mm |
GAUS-250FQTS |
250 Litre |
Height 1428mm, diameter 621mm |
GAUS-300FTQS |
300 Litre (Tall) |
Height 1891mm, diameter 580mm |
GAUS-315FTQS |
315 Litre |
Height 1748mm, diameter 621mm |
GAUS-315FQTV (Vitreous) |
315 Litre |
Height 1626mm, diameter 638mm |
* please note, tank sizes can change, correct at April 2024
13 - Is water quality an important consideration for the Sanden "Eco® Plus" Hot Water Heat Pump System?
Yes. Please refer to the Installation Manual for details. Importantly, no warranty applies to the heat pump unit and the storage tank, where the chloride level exceeds 200 mg/litre and the pH is less than 6.0. If in doubt, it is recommended that water chemistry information be sought from your local council or water supplier.
14. What do I do if the Sanden "Eco® Plus" Hot Water Heat Pump System has a problem?
Firstly, review the Trouble Shooting Guide in the Installation Manual. If still unresolved, please Contact Us or the plumber you purchased your unit from. If you are unable to reach your Dealer/Installer, then please call Sanden on (02) 9791 0999
15 - If I go away from the house, can I turn the hot water heat pump off?
You can turn it off if you are away for an extended period. We recommend leaving it on, so the unit can automatically protect the quality of the water.
16 - Do I need to register my warranty?
Yes. For efficient processing of warranty claims, should they arise, please register your Sanden "Eco® Plus " Hot Water Heat Pump System here.
13 - Is water quality an important consideration for the Sanden "Eco® Plus" Hot Water Heat Pump System?
Yes. Please refer to the Installation Manual for details. Importantly, no warranty applies to the heat pump unit and the storage tank, where the chloride level exceeds 200 mg/litre and the pH is less than 6.0. If in doubt, it is recommended that water chemistry information be sought from your local council or water supplier.
14. What do I do if the Sanden "Eco® Plus" Hot Water Heat Pump System has a problem?
Firstly, review the Trouble Shooting Guide in the Installation Manual. If still unresolved, please Contact Us or the plumber you purchased your unit from. If you are unable to reach your Dealer/Installer, then please call Sanden on (02) 9791 0999
15 - If I go away from the house, can I turn the hot water heat pump off?
You can turn it off if you are away for an extended period. We recommend leaving it on, so the unit can automatically protect the quality of the water.
16 - Do I need to register my warranty?
Yes. For efficient processing of warranty claims, should they arise, please register your Sanden "Eco® Plus " Hot Water Heat Pump System here.
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