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7120 Hot and cold water system (48)
7121 Cold potable water reticulation systems (29)
A piped system connected to the supply source to distribute cold potable water to user points
7122 Hot potable water reticulation systems (22)
A piped supply system connected to the cold water supply source to distribute hot potable water to
user points
7123 Hot and cold water systems (45)
Piped system to supply hot and cold water from the cold water source to user points
7124 Chilled potable water reticulation systems (6)
A piped supply system, connected to a cold potable water source, the water being chilled, using
refrigeration plant, and distributed to user points
7125 Solar hot water systems (17)
Solar collectors to heat water
7126 Water heaters (40)
Water heating units, storage or non-storage types powered by electricity, gas, heat pump or solar, or
combinations of them, where they are a integral part of the Hot and Cold Water System
7128 Miscellaneous water reticulation (5)
Supply, installation and connection of, sundry or special systems, components and items, where they are an integral part of the Water Supply System. Includes fixing materials and fasteners, supports, etc., when supplied as part of the system.
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