Pipe Sizes - Rheem Water Heater User Manual

CONNECTIONS – PLUMBING
OR
A disconnection union must always be provided at the cold water inlet, solar
cold water outlet, solar hot water inlet and hot water outlet on the water heater
to allow for disconnection of the water heater.
This water heater has either a
plastic dip tube or fitting liner in
the inlet and outlet fittings (see
diagram). These must be in place
for the water heater to function
properly. Do not remove or
damage them by using heat
nearby. They will be pushed into
the correct position as the fitting
is screwed in.
The solar cold pipe connects to the DN15 pipe protruding from the side of the
air duct on the solar storage tank. Use the compression fitting supplied. The
solar hot pipe connects to the raised inlet located above the cold water inlet
and below the hot water outlet (refer to "Assembly of Solar Hot and Solar Cold
Pipe Connections" diagram on page 35).

PIPE SIZES

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. Reference to the technical specifications of the water heater and
local regulatory authority requirements must be made.
40