Follow These Instructions For The Space Heating Water; Tools, Materials And Additional Equipment - Rinnai E75CN Installation & Servicing Instructions Manual

1.5 Follow these instructions for the space heating water

Approved antifreeze: • Rhomar RhoGard Mutli-Metal (AL safe)
(max. concentration 50%)
Approved system cleaner: • Noble Noburst Hydronic System Cleaner
i
NOTICE
Approved inhibitors: • Rhomar Pro-tek 922

1.6 Tools, materials and additional equipment

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Unsuitable heating system water can cause the formation of scale or sludge, which
affects system efficiency. It can also cause corrosion and reduce life of the heat
exchanger.
– You must follow Rinnai guidelines for boiler water quality.
– Thoroughly flush the system prior to filling.
– Follow the Rinnai cleaning instructions.
– Never use water that has been treated by a reverse osmosis, D.I., or distilled water
to soften the water to fill the heating system.
– Do not use inhibitors or other additives unless approved by Rinnai for that purpose!
– When frost protection of the heating system is desired, only use Rinnai-approved
antifreezes. The allowed maximum concentration is 50%.
– When using oxygen-permeable pipes, e. g. for under floor heating systems, you
must separate the system from the boiler using plate heat exchangers.
– Valve off boiler while flushing system, do not introduce any system cleaner into the
boiler loop. Flush system thoroughly to remove all system cleaner before filling boiler.
• Noble Noburst AL
• Fernox F3 Cleaner
• Rhomar Hydro-Solv 9100
The system cleaners from NoBurst, Rhomar, and Fernox are not to be used in
the boiler. The boiler must be closed off (valved off) from the rest of the system
or not connected while the cleaners are in the system. The system should then
be drained and then thoroughly flushed with clean water to remove all the
system cleaner.
• Noble Noburst AL inhibitor
See the Rinnai Boiler Applications Manual or Chapter 6 of this manual for additional
information.
For the installation and maintenance of the boiler you will need:
– Standard tools for space heating, gas and water fitting
– Digital manometer, capable of reading both positive and negative pressure
– Combustion analyzer (intended for use with condensing boilers)
– Digital multimeter
– pH digital meter
– Metric Allen wrenches
– Metric socket wrenches
In addition, a handtruck with a fastening belt is useful.
For maintenance to the boiler you need, apart from standard tooling for space heating,
gas and water fitting the following items:
- Rinnai toolkit Q and E-Series