INF20N50 User Manual

Loading ...

Sizing

Correct Sizing

Correct Sizing is vital for optimum performance

Number of Occupants

The number of users in any installation is extremely important as it directly aects the size of unit that is required. Nobody likes a

cold shower so it is vital that any system is correctly sized for an application. Please talk to your Rinnai Hot Water Specialist about

the best model to suit your needs.

Below we have outlined some of the considerations for various Rinnai Solar Systems:

Tips on selecting the best Rinnai System

To correctly select a Rinnai Solar System for a home, a number of lifestyle factors need to be considered.

1. What Solar Zone is applicable for the installation?

This determines the amount of solar energy that will be available and can inuence the number of collectors

that should be installed.

2. Is Gas available?

Natural Gas boosting is the cheapest to run and the most environmentally friendly form of boosting for a Solar

System. Rinnai recommends that gas boosting should always be the rst choice if available. Alternatively, both

LPG & Electric boosting are also economical to run with correctly sized systems.

3. Is there limited space available?

This can determine whether space is available at ground level for a Split System storage cylinder. If limited,

then a Close Coupled roof mounted system would be the most appropriate.

4. Is the area prone to frost or sub-zero temperatures?

Frost protection should always be used if temperatures fall below zero. This can be achieved by using

Frost Tolerant Collectors (FTCs) which must be requested at the time of ordering. FTC panels are warranted

to -6ºC under certain conditions. Please ask you Rinnai Solar Specialist for further details or see on-line at

www.rinnai.com.au

Gas Boosted Solar

• Sizing parameter – Number of bedrooms in the home

• The storage cylinder capacity determines the available solar

heated hot water

• The Gas Booster is always available as a backup, therefore hot

water will never run out

• Undersized system could mean the system is relying on the gas

booster more often – increasing running costs

• Insucient Solar Collectors would also reduce the solar gain

causing reliance on the gas booster

Electric Boosted Solar

• Sizing Parameter – Number of Bedrooms in the home

• The Storage Cylinder size determines the amount of hot water

available regardless of whether solar generated or electric

boosted

• Hot water can run out if not correctly sized

• Choice of electricity tari aects availability of re-heated water:

- Normal (peak) tari continually re-heats

- O-peak will generally not re-heat until overnight

Loading ...

Rinnai INF20N50 Natural Gas Continuous Flow Hot Water System