Rinnai 10
HW Demand Duo Systems OIM
These instructions apply to the Demand Duo (DD) range of Rinnai hot water systems ranging from one Heavy Duty
continuous flow water heater coupled with one storage tank up to 12 heavy Duty continuous flow water heaters
coupled with multiple tanks:
REGULATIONS
For continued safety of this appliance it must be installed, operated and maintained by authorised person in
accordance with manufacturer’s instructions, current with AS/NZS 3500 and AS/NZS 5601, local regulations and
municipal building codes.
Rinnai Demand Duo hot water systems are not suitable or approved as pool heater.
Read these instructions carefully before proceeding with the installation.
APPLIANCE LOCATION
Ensure reasonable access for installation, servicing and removal. All valves, controls and pumps etc must be
easily accessible.
Rinnai Demand Duo tanks and any free standing frames must be mounted on a solid level base, capable of
supporting the weight of the appliance when full of water. Ensure components are not allowed to stand in water.
Spacers under the tank are recommended in wet areas.
All Rinnai Demand Duo tanks are "left handed" with the water connections to the left when viewing the thermistor
housing from the front.
These systems are combined with Rinnai HD series, HD28e (VCM2837WC), HD28i (VCM2837FFUC), HD250e
(VRM3237WC), HD210e (N3237WC) and HD210i (N3237FFC).
Rinnai HD units are fan assisted appliances and thus have lower clearances than a natural draft appliance of the
same MJ rating.
HD28E, HD250E, HD210E (EXTERNAL MODELS)
This appliance is designed for ‘Outdoor’ Installation only. As such, it must be located in an above ground open
air situation with natural ventilation, without stagnant areas, where gas leakage and products of combustion are
rapidly dispersed by wind and natural convection.
This appliance must be mounted on a vertical structure with the water and gas connections on the underside
pointing downwards. For appliances installed on elevated structures or under floors specific requirements apply.
Refer to AS/NZS 5601 Section 6 for details.
This appliance must not be used as a domestic spa or swimming pool heater.
Location of the appliance flue terminal must be in accordance with Section 6 and Figure 6.2 of AS/NZS 5601.
Figure 6.2 is reproduced in the ‘Horizontal Flue Terminal Clearances’ section of these instructions.
NOTE
AS/NZS 5601 is current at the time of printing. It is the installers’ responsibility to ensure current
requirements are met.
INSTALLATION INSTRUCTIONS
