How to Turn Up Temp on Rinnai Water Heater

Rinnai INFINITY® A-Series external and internal

Downloads

Gallery

Overview

$1,890

RRP

A16 $1,422, A20 $1,612, A24 $1,804, A26 $1,890, A28i $2,621

Only on when you need hot water

The Rinnai INFINITY A-Series are continuous flow hot water systems for residential applications. These water heaters produce endless hot water, and unlike electric cylinders, are energy efficient as they are only on when you need hot water.

There are five models to choose from depending on your hot water needs. Model numbers represent hot water capacity, for example the A26 produces 26 litres of hot water per minute at a 25 ° Celsius rise.

Read More

Product Details

Suitable for
- externalresidential applications only (A16-A26)
- internal residential applications only (A28i)
- mains and medium pressure systems
- as a gas boost for solar connections (A28i model only¹)

Hard or acidic water will need to be treated to use this product.

Not suitable
- as a spa or swimming pool heater
- for hydronic applications

¹ Only unit that can be preset to 75 °C

• Tech Specs
• Downloads
• Accessories

Tech Specs

Technical Specifications

*A28i model efficiency is 83.5%

---

Gas type

Available for Natural Gas or LPG, specify at the time of purchase

Available fixed temperatures

40, 42, 50, 55, 60, 65 °C (70, 75, 85 °C*)
* A28i model only

Codes and REU numbers

• A16: INFA16N/L, REU-A1620WG-ZK
• A20: INFA20N/L, REU-A2024WG-ZK
• A24: INFA24N/L, REU-A2426WG-ZK
• A26: INFA26N/L, REU-A2626WG-ZK
• A28i: INFA28FFN/L, REU-VCM2837FF-ZK

Hot water capacity

• A16: 1.5-16 L/min
• A20: 1.5-20 L/min
• A24: 1.5-24 L/min
• A26: 1.5-26 L/min
• A28i: 1.4-37 L/min

Input and output

Model	Input MJ/h	Output kW
A16	16.3-124	27.8
A20	19.9-156	34.9
A24	16.3-184	42.0
A26	16.3-199	44.5
A28i	11-210	48.8

Exhaust system

• External units - forced flue
• Internal unit - room sealed forced flue

Frost protection

Fitted as standard. Frost protection operates automatically, as long as the appliance is connected to the electrical power supply, by activating when the temperature inside the unit drops below 3.5 °C, and turns off once the temperature inside the unit reaches 7 °C.

Ignition system

Direct electronic ignition

Injector sizes

Model	NG	LPG
A16	0.9, 1.50	0.71, 1.09
A20-A26	1.08, 1.80	0.73, 1.12

Line pressure (min.)

NG - 1.13kPa, LPG - 2.75 kPa

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 pressure down.

Power consumption

• Normal: 47 W (A16), 58 W (A20), 56 W (A24), 66 W (A26), 95 W (A28i)
• Standby: 2 W
• Automatic frost protection: 68 W (A16-A26), 120 W (A28i)

Pressure relief

Valve opens at 2060 kPa, closes at 1470 kPa

Water supply

Nominal operating pressure:

• A16: 120-1000 kPa
• A20: 160-1000 kPa
• A24: 200-1000 kPa
• A26: 200-1000 kPa
• A28i: 220-1000 kPa

Activation flow rate: 1.5 litres per minute

Please note: If the water inlet pressure or flow rate drops below the minimum values stated above, operation of the INFINITY is not guaranteed. The unit requires both minimum flow rate and pressure to operate correctly.

Noise level

External units 50 dB(A), internal unit 54 dB(A). Some people are susceptible to low level noise. This needs to be considered if locating an appliance near a bedroom.

NOx af

35 ppm (40 ppm A28i)

Safety devices

• Flame failure
• Boil-dry protection
• Overheat protection
• Fusible link
• Pressure relief valve
• Combustion fan RPM check

Weights

• A16: 13 kg
• A20: 14 kg
• A24/A26: 15 kg
• A28i: 21 kg

Compliance

Energy Safety Supplier Declaration of Compliance declaration numbers:

• A16 - 1825920179
• A20 - 1825820179
• A24 - 1825720179
• A26 - 1825620179
• A28i - DEC-000001841X8M7

Market release

A16-A26: 2018
A28i: Dec 2021

FAQs

We recommend that Rinnai gas appliances are serviced every two years. This can extend the operating life of your appliance, and also ensures it is running at peak efficiency - saving you and your family money.

To book a service, phone 0800 RINNAI (0800 746 624)

* As the world's largest gas appliance manufacturer, Rinnai is widely regarded as the industry leader.
* Rinnai products are known throughout the world for their superior quality, safety, technology and sophisticated control systems, all factories are ISO 9001 and/or ISO 14001 certified.
* We have an established 40 year history in New Zealand.
* Rinnai are happy to advise that we now have an IANZ accredited Test Lab for MEPS testing on Hot Water Cylinders. The lab uses the latest in test equipment and can test all type of Hot Water Cylinders for MEPS heat loss testing.

We realise there's a lot of information out there. Water heating is important and it's better to spend the time up front deciding on what you need and what's important. We have an experienced customer service team that can walk you through the process. For those more complicated projects we also have a free specification service.
Give us a call: 0800 RINNAI (0800 746 624)

They are both continuous flow water heaters but the Rinnai efficiency is the latest generation of water heater with an efficiency of 95%, compared to 80% of the standard Rinnai INFINITY®. The Rinnai efficiency has an additional heat exchanger. The second heat exchanger enables the efficiency range to extract even more heat from the gas, meaning less energy is required to meet your hot water requirements.

Digital controllers allow you to select the exact temperature of the hot water at the outlet. This has a number of benefits:

* Safety, especially if you have young children, the hot water can be pre-set to a child-safe level
* No need to mix hot and cold water, this reduces the changes in water temperature when another tap in the building is turned on
* You use your continuous flow unit more efficiently as less gas is required to heat water to 40 °C (typical shower temperature) than at 55 °C (which is the default temperature without controllers)
* Highlights any problems (disruption in gas supply etc.) by displaying error codes on the controller

Installation costs are difficult to provide as every installation is different. Factors such as the length of pipe required, whether you have accessories fitted, how far away you live and choosing an internal or an external unit all influence the overall cost.

If you're interested in a Rinnai hot water heating solution, we highly recommend you contact a plumber/gas fitter who will be able to explain all the options to you.

From our blog

WATER HEATING

How to Save on Hot Water

Hot water can make up a third of our electricity bill! This ends up being a lot of amount of money as time goes by. With a few small changes in our daily habits and routines, we can cut down on these costs.

Read Article

HOME HEATING

Gas Energy is Here to Stay - Future Sure

The article clarifies some of your frequently asked questions amidst all the confusion about the future of gas.

Read Article

WATER HEATING

The Future of Gas in New Zealand

We'd like to reassure you that gas will continue to be part of New Zealand's energy mix for years to come, even as we move towards carbon neutrality as a nation.

Read Article

SEE MORE ARTICLES

Why Rinnai?

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

FIND OUT MORE

Product Registration

Simply enter the product code and serial number to register a Rinnai product.

REGISTER A PRODUCT

How to Turn Up Temp on Rinnai Water Heater

Source: https://rinnai.co.nz/water-heating/gas-hot-water-systems/residential-use/rinnai-infinity-a-series-external-and-internal

Share this post