Rating 7

HDC32i (Internal)

Rating 7

HDC32i (Internal)

Ground breaking technology

Rinnai – 5 year commercial heat exchanger warrantyThis ground breaking technology is the first of its kind to be used in water heating in Australia. The unique design of the Rinnai HDC32i (internal) Heavy Duty Continuous Flow Hot Water system incorporates two innovative Stainless Steel heat exchangers to achieve the maximum heating output from every mega joule of gas, resulting in an outstanding thermal efficiency of 97%.

In addition it employs revolutionary surface burner technology – an Australian first!

Rinnai - Australian MadeThis unit is a room sealed appliance using a co-axial flue design with an impressive maximum flue run of up to 42 metres. Offering class leading installation flexibility.

For internal applications only.

Return to COMMERCIAL home

Dimensions:

H: 670, W: 470, D: 219

Locate Your Nearest Stockist

NOTE: Rinnai does not sell directly to the public. Our products are available only through third-party stockists and installers.

Specialist

Dealer

Retailer

Trade

Flame Fire Specialist

Climate Specialist

Dealer

Retailer

Trade

Ideal for childcare centres, high usage amenities and factories

Renowned Japanese design / Australian made

97% thermal efficiency

Revolutionary surface burner technology – an Australian first

56kW output capacity

High temperature safety cut-out

Internal model

5 year heat exchanger warranty*

7.0 star equivalent energy rating**

  • 97% thermal efficiency
  • 56kW output capacity

Superior Technology

  • Top down surface burner technology
  • Dual Stainless Steel heat exchangers
  • Heat exchange bypass technology maintains the perfect temperature with reduced pressure loss
  • Compatible with Rinnai sophisticated Cascade staging system
  • In-built controller displays set water temperature and system status
  • Building Management System (BMS) fault option
  • Flue lengths up to 42 metres for internal versions
  • Push button control on the PCB making initial installation set-up a breeze
  • High altitude function allowing installation up to 2000 metres above sea level
  • High temperature safety cut-out
  • Low pressure loss
  • Revolutionary fuel sensing technology removing the need for separate models for Natural Gas or LPG
  • Anti-frost protection down to a low -20°C
  • 50°C and 75°C pre-set temperatures available

Ideal for

  • Caravan Parks
  • Butchers
  • Laundromats with domestic style top loader machines
  • Childcare centres
  • Small amenity blocks
  • Factories
  • High temperature wash down

Related products/Add-ons

 Commercial Flues

Rinnai Quality

  • Renowned Japanese design quality and components
  • Manufactured in Rinnai’s own state of the art facility
  • 5 year heat exchange warranty*
  • 3 year parts and labour warranty*

*For full warranty terms and conditions refer to the related warranty booklet.
**Independently calculated using Australian Standard AS5263.1.2. | S5263.1.2 limits the rating shown on the energy label to 6.0 Stars. | Where the calculated rating of Rinnai appliances exceeds 6.0 Stars it is designated as an “equivalent” rating.

The product information on this website (comprising product brochures, warranty information, installation manuals, diagrams, specifications and representations) relates to current products. This information may be different for superseded products. For superseded products please contact Rinnai to confirm product information.

Product codes: REU-NB3237WC-AK / REU-NB3237FFC-AK / REU-NB3237WC-50-AK / REU-NB3237FFC-50-AK

Rinnai – HDC32i (internal) Heavy Duty Continuous Flow Hot Water Values
Dimensions Height mm 654
Width 470
Weight kg 27
Factory Default Temperature Celsius 50 or 75
Temperature Maximum 85
Water Pressure Minimum kPa 300
Maximum 1000
Gas Rate Minimum NG / LPG 15.9
Maximum 209
Operating Water Flow Rate Minimum L / min 2.4
Thermal Efficiency Rating % 96.2
Energy Rating Stars 7
Capacity Maximum kW 55.6
Compatibility MECS Yes
Cascade Yes
Status Monitor Yes
Electrical Consumption W 150
Sound Level dBA 49
Dimensions Height (including brackets) mm 730
Depth (including brackets) 291
Hot Water Outlet From Wall 158
From Centre 130
Cold Water Inlet From Wall 91
From Centre 9
Gas Connection From Wall 72
From Centre 142
Condensate Connection From Wall 135
From Centre 181
Fitting Diameter Hot / Cold / Gas 20
- Consumer Consumer
  • HDC32 (Heavy Duty) Gas Continuous Flow Hot Water Specification Guide
  • Infinity Enviro 32 / HDC32 (Heavy Duty) Gas Continuous Flow Hot Water Operation and Installation Manual
  • Gas Continuous Flow Hot Water Error Codes
  • Commercial Hot Water Warranty Booklet
+ Trade Installation Guides + Diagrams
+ Guides/Manuals
  • Commercial Hot Water FFPP (Polypropylene) Flue System Installation Manual
+ Photos Photos

Book a Service
/ Repair / Warranty Assessment

Looking for support?
Please get in touch and let us help.

Find a Supplier

We'll help you find a Rinnai supplier so you receive the right advice and product, as locally as possible.