Installation Sheet

Installation & Servicing Instructions Rinnai E-Series

Boiler basic piping g. 5

6.1 Central heating system

Connect the central heating system according to its instructions.

When removing the plastic sealing caps from the pipes, water may come out

of the boiler due to live re testing during manufacturing.

The boiler, when used in connection with a refrigeration system, must be

installed so the chilled medium is piped in parallel with the boiler with appropriate

valves to prevent the chilled medium from entering the boiler.

The boiler piping system of a hot water boiler connected to heating coils located

in air handling units where they may be exposed to refrigerated air circulation

must be equipped with ow control valves or other automatic means to prevent

gravity circulation of the boiler water during the cooling cycle.

Some installations with multiple zone valves may require a di󰀨erential bypass,

this will prevent excessively high ow rates through a single zone when the

other zone valves are closed.

NOTICE