Typical Installation - Rheem mr85245 Use & Care Manual

Temperature & Pressure
Hot Water Outlet
Relief Valve
Seal Ring
(Inside nut)
Hex Union Nut
(Relief Valve)
Top of Water Heater Junction
Box
Drain Valve
Drain Pan
Pre-solder 12" minimum
Cold Inlet Shut Off
stub pipes before installing
to unit.
■■■✦■■■
Support the relief valve drain pipe
using metal strapping or wire
fastened to the structure overhead
Heat Trap 6"
Minimum
Thermal Expansion
Tank (if required)
See thermal
expansion section
on page 6.
Union
(The addition of a union at
this point will help in the
replacement of the T & P Relief
Valve should the need arise.)
Drain Pipe -(3/4" minimum)
No threads permitted
on end of Drain Pipe.
6" Maximum distance from
drain pipe to suitable open
drain.