Warning
Close the fill valve after any addition of water to the system, to reduce risk of water
escaping.
Caution
Contact local water purveyors about the suitability of the supply for use in hydronic
heating systems. If unsure about water quality, bring water or hydronic fluid of
known quality to the site. Alternatively, request testing and assessment (and
treatment, if required) from a local water treatment expert.
In areas where water quality is in question, or when chemical treatment or glycol is required,
other options should be considered. Today there are a number of feed and pressurization
devices on the market that may be a better choice than a raw water fill from the mains. When
regular maintenance requires relief valve blow-off, the discharge may be directed back into
the pressurization appliance for recycling of fluid and chemicals back into the system. In
buildings that may be unoccupied for long periods of time, pressurization appliances are
useful to prevent flood damage should leakage occur from any component in the system. An
additional benefit is that backflow prevention devices are not required when using these
devices.
Where cooling mode is to be used, all piping must be thoroughly insulated to prevent damage
from uncontrolled condensaton.
To Next Page
Loading...
General