Rinnai’s heavy-duty condensing range uses two heat exchangers to
capture residual heat from flue gases to pre-heat incoming water,
with the HDC1500i turning in 105% net efficiencies*. These figures
add up to considerable on-going energy savings when compared with
traditional gas fired stored water systems.
With a Rinnai condensing unit, temperature is regulated to within +/-
1ºC via ‘smart’ internal controls without any variation of temperature
at the outlet even when water is drawn off elsewhere. All models have
full electronic ignition, no pilot light and operate on demand only, so
there is no gas consumption when the unit is idle.
The units are easily configured in a manifold arrangement, ensuring
there will never be a shortfall of instant hot water whatever the
demand.
Rinnai, the UK’s leading manufacturer of the ErP A-rated Infinity range
of continuous flow condensing gas-fired water heaters, supplies the
best energy efficient range of low-NoX water heating units currently
on the market.
Advanced condensing heat exchangers combined with innovative
burner technology ensures that every cubic metre of gas is used to
the maximum on HDC 1500i.
Another Rinnai innovation addresses an age-old industry problem with
hot water delivery - lime scale build-up. The company’s integrated
scale control system is an innovative solution and comes in the form
of an LC (lime check) code on the display of the controller.
Ultimately, ongoing use with hard water may shorten the lifespan of
conventional water heating appliances and systems. To safeguard
against this Rinnai units continually self-monitor for lime scale
deposits around the heat exchanger. If a lime scale build up has
being identified, a message is sent to the built-in interface panel on
the front of the appliance. The message is displayed as ‘LC’, which
alerts the end user that it is time to call a Rinnai service agent to
perform a lime scale flush to clear the potentially harmful deposits.
This avoids and eliminates the adverse effects associated with
lime scale build up, including lower energy efficiencies and rapid
product de-generation.
Rinnai’s HDC range offers condensing technology with up to
107% gross efficiency, ultra-low-Nox of less than 20 ppm, a widely
expansive modulation range of 54kW-4kW and high flow rates
of 37/ltr/min. Add to these benefits are the peace of mind of an
extended warranty, a top A-rating exceeding the demands of eco-
labelling legislation, the flexibility of external wall mounting and
delivery to site with all relevant accessories and the knowledge
that the HDC range is future-proofed against future regulatory and
legislative changes.
* Tested and certificated by Technigas to EN 26.
FOR MORE INFORMATION VISIT
WWW.RINNAIUK.COM
Legionella proliferation is answered by Rinnai: the company has
developed additional ‘SMART’ controls for secondary return DHW
systems in the form of an advanced temperature control system which
allows for safe running of water at 42°C core temperature during the
day and 60°C at a time when the building is closed. By the time the
building reopens, core temperature is 42°C for safe use.
Almost all water-fed appliances, including plate heat exchangers,
boilers and water heaters will accumulate scale deposits when
used within hard water areas over time. Lime scale consists of
calcium carbonate (calcite) with lesser amounts of other calcium
salts such as the sulphate. Sometimes lime scale deposits contain
corrosion debris and this scale build-up can affect the water
heaters by reducing their efficiency and overall performance.