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H2O BOILER
HC SERIES IOM Manual
2.6.1
Potable water heater connection
In the case where water heater is being used for water (potable) heating and space heating:
The piping and components connected to the water heater for the space heating application
shall be suitable for use with potable water.
Toxic chemical, such as used for boiler treatment, shall not be introduced into the potable
water used for space heating.
A water heater that will be used to supply potable water shall not be connected to any
heating system or component(s) previously used with a non-potable water heating
appliance.
Water heaters for combination water/space heating cannot be used in space heating
application only.
2.6.2
Piping Arrangement
Typical flow arrangements for primary and secondary water piping are shown in Figures 6 – 10
below.
Single Boiler
Figure 6: Primary/Secondary Piping for Condensing Boilers (Single)
D-VAC Sales Inc. Email: [email protected] Tel: (516) 256-3131 www.dvachvac.com
