Boiler
Component
Maintenance Required Frequency Check
Freeze
protection
Check the effectiveness of the glycol in the system. Use
only antifreeze made specifically for hydronic systems.
Inhibited propylene glycol is recommended. Antifreeze
volume must be between 25% and 50% of the total
volume of water in the system.
Warning
Do not use automotive-type ethylene or other
types of automotive glycol antifreeze, or
undiluted antifreeze of any kind. This may
result in severe boiler damage. It is the
responsibility of the Installer to ensure that
glycol solutions are formulated to inhibit
corrosion in hydronic heating systems of
mixed materials. Improper mixtures and
chemical additives may cause damage to
ferrous and non-ferrous components as well
as non-metallic, wet components, normally
found in hydronic systems. Ethylene glycol is
toxic, and may be prohibited for use by codes
applicable to your installation location. For
environmental and toxicity reasons, IBC
recommends only using non-toxic propylene
glycol.
Caution
Installers should inquire of local water
purveyors as to the suitability of their supply
for use in hydronic heating systems.
If water quality is questionable, a local water
treatment expert must be consulted for
testing, assessment and, if required,
treatment.
Alternatively, water or hydronic fluid of known
quality can be brought to the site.
□
Check water pressure and temperature.
There should be no noticeable change if boiler is
functioning normally. Check for any noise in the system.
Annually
□
Check water piping for damage or leaks and repair as
Annually
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Section: Service and maintenance
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