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.

Smart Cylinders are 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 cylinders are made to suit most NZ council water supplies. However some water supplies can have a detrimental effect on the cylinder, 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 ºC to minimise scale build-up. Scale reducing or water softening devices should be considered in hard water areas. The cylinder is not guaranteed against damage due to scaling.

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 thermosta

TPR valve (mains pressure only):

Rating of TPR supplied with cylinder— factory set to 850 kPa and 90 °C.

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 37 mins (3 kW)

• 180 L = 3 hrs 30 mins (3 kW)

• 250 L = 4 hrs 51 mins (3 kW)

Market release:

June 2015

Energy cost saving references:

1. The savings claim is verified by results from European tapping tests.

2. The European efficiency testing standard for a hot water system uses 'tappings'. Tappings are calls for hot water from the cylinder at various times to simulate real life hot water use.

3. Actual savings made will depend on the installation although savings of up to 10% are typical.

4. Savings are influenced by a number of factors including cylinder size, hot water use profile and plumbing system design.

5. Savings are made by the reduction of heat loss from the cylinder and all of the associated components in the plumbing, including the pipework.