Rheem 3805 Series, Руководство пользователя и инструкции по установке, Страница: 12 / 28

P a g e | 10
Plumbing Connection
All plumbing work must be carried out by a qualified person and in accordance with all local codes
and regulatory authority requirements.
Material Specifications
All piping used must be capable of withstanding the temperature and pressure conditions that may
exist within the system. The pipe used must be suitable for high temperature (99
o
C) and high
pressure applications (850kPa). The pipe material must also be of a type that will not corrode when
in contact with potable water.
Connection Sizes

Cold water inlet: R P ¾” / 20 (English system Sealed cylindrical inner thread)

Hot water outlet: R P ¾” / 20 (English system Sealed cylindrical inner thread)

TPR valve: RP ¾” / 20 (English system Sealed cylindrical inner thread)
Pipe Sizing
To achieve true mains pressure operation, the cold water line to the water heater should be the
same size or bigger than the hot water line from the water heater. The pipe sizing for hot water
supply systems should be carried out by persons competent to do so, choosing the most suitable
pipe size for each individual application. The following suggestion is a guide only:

Main pipe 20mm (¾ "); branch pipe not smaller than 15mm (½ ").