The Rinnai Smart Cylinder

By Rinnai
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This revolutionary hot water cylinder learns a households behaviour and only heats what's needed, saving you on water heating!

What is it?
The way that a traditional electric hot water cylinder works means that you are paying to heat all of the water in your cylinder 24 hours a day, 7 days a week, 52 weeks a year. The Rinnai Smart Cylinder™ has a smart thermostat which learns the pattern of hot water use of your house, and then only heats the water when it knows it's going to be needed, typically saving up to 10% on water heating costs*.

It's easy to use too with an LCD control pad, simply set and forget.

How it works
The smart cylinder has three modes that can be selected using the control pad; IQ mode (smart learning mode), manual mode, and vacation mode.

Details
  • Category
    Hot Water Cylinders
Suitable for

Suitable for residential indoor water heating applications—mains and low pressure systems.

A Smart cylinder is ideal for households that have a regular pattern of hot water use, as consistency is key. Also there is some interaction needed with the Smart controller, which is mounted on the cylinder. Easy access to the cylinder and controller is important.

Not suitable as a pool or spa heater, or for connection to an open loop solar or hot water heat pump system.

Water quality 
Rinnai water heaters are manufactured to suit most New Zealand council water supplies. However some water supplies can have a detrimental effect on the water heater, its operation and life expectancy. Stainless steel cylinders are not suitable for bore or tank water.

Water supplies with a high level of calcium carbonate (hard water) can cause scaling on hot surfaces. We recommend a water temperature of no more than 65 °C to minimise scale build-up. Scale reducing or water softening devices should be considered in hard water areas. The unit is not guaranteed against damage due to scaling.

Technical

Connections: Hot and cold water connections ¾ " (20 mm)

Element: 3 kW (all sizes) Incoloy 825 alloy sheath element positioned at the bottom of the tank.

Max. working pressure:

  • 850 kPa (MP enamel, and SS cylinders)
  • 120 kPa (low-medium pressure stainless steel)

Pressure testing: To 15 bar

Thermal insulation: CFC-free polyurethane foam, compliant with MEPS standard

Thermostat: Cotherm iQuaflex 14 A probe thermostat

TPR valve (mains pressure only): Rating of TPR supplied with cylinder—factory set to 850 kPa and 90 °C.

 Market release: June 2015

Cylinder recovery times (theoretical): Based on a thermostat temp. setting of 60 °C and an incoming water temp. of 15 °C.

135 L: 2 hrs 22 mins (3 kW)

180 L: 3 hrs 9 mins (3 kW)

250 L: 4 hrs 23 mins (3 kW)

https://rinnai.co.nz/water-heating/hot-water-cylinders/the-rinnai-smart-cylinder/smart-cylinder#downloads-tab

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At Rinnai, we’re all about comfort.

For over 45 years, Rinnai has supplied New Zealand homes with a range of appliances that help Kiwis to enjoy comfortable, safe and efficient lives. We’ve designed and manufactured products especially for New Zealand homes and conditions – from heating your water, to heating and cooling your living areas. With over a million appliances sold over this time, Rinnai has established a proud reputation for quality and reliability, and become known as your total home living experts.