Installation Guide

50 Rinnai I-Series Condensing Boiler Combi Manual
• The piping (including soldering materials)
and components connected to this
appliance must be approved for use in
potable water systems.
• Purge the water line to remove all debris
and air. Debris will damage the boiler.
• The boiler DHW must not be connected to
any piping or components previously used
with a non-potable water heang
appliance.
• Boiler water treatment and other toxic
chemicals must NOT be introduced into
the boiler DHW or connected potable
water piping.
• Ensure that the water lter on the boiler is
clean and installed.
• An approved pressure relief valve is
required by the American Naonal
Standard (ANSI Z21.13) and ASME Boiler
and Pressure Vessel Code, Secon IV
(Heang Boilers) for all water heang
systems and shall be accessible for
servicing. Refer to secon “8.7 Connect
the Pressure Relief Valves (DHW and
Central Heang)” for more informaon.
Plumb the cold water supply line to the
DHW cold inlet connecon on the boom
of the boiler.
To connect the water supply, follow the
instrucons below.
For standard installaons, refer to the Piping
Diagram for Basic DHW Installaon on the
next page.
Plumb the hot water supply line to the
DHW hot outlet connecon on the
boom of the boiler.
Isolaon Valve
DHW Cold Inlet
Connecon
Isolaon Valve
DHW Hot
Outlet
Connecon
Water connecons to the boiler should
follow all state and local plumbing codes.
IMPORTANT
Topics in this secon
• Guidelines
• Instrucons
• Piping Diagram for Basic DHW Installaon
7
Hot water can cause rst degree burns
with exposure for as lile as:
• 3 seconds at 140°F (60°C)
• 20 seconds at 130°F (54°C)
• 8 minutes at 120°F (49°C)
Children, disabled, or elderly are at
highest risk of being scalded. Feel water
before bathing or showering.
Water temperatures
over 125° F (52° C)
can cause severe
burns or scalding
resulng in death.
DANGER