Rinnai INFINITY® HD32, 26 ext, and HD26 int

Overview

Discontinued
Discontinued 2006

Continuous flow gas hot water heaters preset to 75 °C with status monitor.

Suitable for mains and medium pressure residential and commercial applications. Also applications requiring higher hot water temperatures, can be set up to 85 °C (HD32 up to 95 °C). Hard or acidic water will need to be treated to use this product.

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Technical Specifications

REU numbers
  • HD32 - REU-V3232WC
  • HD26 ext - REU-V2632W
  • HD26 int - REU-V2632FFUC
Colour

Silver

Gas type

Available for NG or LPG. Gas type specified at time of purchase.

Input

HD250 - 250 MJ/h or 69 kW
HD26 - 199 MJ/h or 55 kW

Output

HD32 - 56 kW
HD26 ext - 47. 2 kW
HD26 int - 46 kW

Efficiency

HD32 - 80%, HD26 ext - 85%, HD26 int - 87%

Capacity

Hot water capacity: 2.4-32 L/min (HD32), and 2.4-26 L/min (HD26)
Nominal water capacity: HD32 - 32 L/min at a 25 °C rise (1920 L/h), HD26 - 26 L/min at a 25 °C rise (1560 L/h)

Connections
  • Hot water outlet R¾ (20 mm)
  • Cold water inlet R¾ (20 mm)
  • Gas supply R¾ (20 mm)
Exhaust system

External units → forced flue
Internal unit → room sealed forced flue

Ignition system

Direct electronic ignition

Injector sizes (mm)
Model NG LPG
HD32 1.05, 1.65 0.65, 0.95
HD26 1.15, 1.80 0.75, 1.15
HD26 int 1.00, 1.70 0.75, 1.15
Line pressure (max.)

3.5 kPa (maximum standing pressure under abnormal intermittent conditions is 5.0 kPa).

In the case of commercial metering (i.e. 35-37 kPa coming in), there may be a requirement to regulate the incoming line pressure down.

Noise level

49 dB(A)

Power consumption
Model Normal Standby Automatic frost protection
HD32 83 W 12 W 100 W
HD26 65 W 6 W 100 W
HD26 int 80 W 7.5 W 100 W
Pressure relief

Valve opens at 2060 kPa and closes at 1470 kPa

Preset temperatures

HD32 - 40, 43, 50, 55, 60, 65, 75, 85, and 95 °C
HD26 - 40, 43, 50, 55, 65, 75, and 85 °C

Safety devices

Flame failure, boil-dry protection, overheat protection (OHS), fusible link, pressure relief valve, combustion fan RPM check

Water supply

Nominal operating pressure: 150-1200 kPa
Minimum water flow: 2.4 L/min (HD32 2.7 L/min)

Weights

HD32 - 29 kg, HD26 - 22 kg

Market release

2004

Discontinued

2006

Why Rinnai?

Our stylish and efficient heating and cooling solutions are designed to bring you total home comfort.

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