Rinnai Demand Duo Installation Manual page 5

Location
System should be installed in accordance with G12 and AS/NZS 3500.4. For servicing
and maintenance, please allow sufficient room for access of all components of the
system.
Ensure the hot water system is installed in a corrosive free environment and free from chemicals
as this could potentially create an atmosphere that attacks the Rinnai INFINITY water heaters.
Base requirements
System should be installed on a flat level surface of sufficient strength to support the weight of
the Demand Duo system when full of water.
The frame must be secured to the floor using anchor bolts (not supplied).
Access to system
All components of the system must be installed to ensure access can be gained without hazard
or undue difficulty for inspection, repair, renewal, or operational purposes. Sufficient clearances
shall allow access to removal of all serviceable components.
Where a system is not accessible for maintenance, servicing, or replacement, the Rinnai
warranty will not cover any additional costs caused by access difficulty. The system must be
accessible without the use of a ladder or scaffold.
Catch pan
It is important a suitably drained catch pan (or drain system) is fitted where damage could be
caused by discharge from the cylinder. This is a mandatory requirement of the installation. If
damage is caused by a leaking cylinder that has not been installed with a suitable drain system
the owner can seek compensation through the installer or consider claiming on insurance.
Rinnai INFINITY flue clearances
Flue clearances must comply with AS/NZS 5601.1.
Demand Duo systems with HDi200 and EFi250 internal units, where each unit is flued
individually, must use a Rinnai approved flue system.
Demand Duo Demand Duo CFHW with storage backup installation guide: 12583-B | 5