Rheem Marathon MR105/473185 Use & Care Manual page 5

Hot Water
Outlet
Flexible
Connector
Extension Fitting
(included with heater)
Seal Ring
(included with heater)
HOT Outlet
Hex Union Nut
Hot Water
Outlet
Union
3/4" Adaptor
Sweat X Female Pipe
Relief
Valve
Extension Fitting
(included with heater)
Seal Ring
(included with heater)
HOT Outlet
Hex Union Nut
Hot Water
Outlet
Union
3/4" Female Coupling
Relief
Valve
Extension Fitting
(included with heater)
Seal Ring
(included with heater)
HOT Outlet
Hex Union Nut
CAUTION: DO NOT SWEAT SOLDER DIRECTLY TO THE WATER HEATER HEX UNION NUTS AS SOLDERING
TORCH HEAT WILL DAMAGE THE WATER HEATER BEYOND REPAIR.
* See Temperature & Pressure (T & P) Relief Valve section for drain pipe installation details.
Figure 2 — Typical installation methods using Water Heater Installation Kit (top), Soldered Copper or CPVC Pipe (center), or Threaded Pipe
(bottom).
Installation
Cold Water
Inlet
INSTALLATION KIT
Shut-Off
Valve
Flexible
Connector
T & P
Relief
Vacuum Valve Ass'y
Valve
*
(included with heater)
Seal Ring
(included with heater)
COLD Inlet
Hex Union Nut
SOLDERED COPPER OR
Cold Water
CPVC PLASTIC PIPE
Inlet
Shut-Off
Valve
Union
3/4" Adaptor
T & P
Sweat x Male Pipe
*
Vacuum Valve Ass'y
(included with heater)
Seal Ring
(included with heater)
COLD Inlet
Hex Union Nut
Cold Water
Inlet
Shut-Off
Valve
Union
T & P
Vacuum Valve Ass'y
*
(included with heater)
Seal Ring
(included with heater)
COLD Inlet
Hex Union Nut
WATER HEATER
Hot Water
Outlet
90° Elbow
Flexible
Connector
Extension Fitting
(included with heater)
Seal Ring
(included with heater)
HOT Outlet
Hex Union Nut
Hot Water
Outlet
90° Elbow
Union
3/4" Adaptor
Sweat X Female Pipe
Extension Fitting
(included with heater)
Seal Ring
(included with heater)
HOT Outlet
Hex Union Nut
THREADED PIPE
Hot Water
Outlet
90° Elbow
Union
3/4" Female Coupling
Extension Fitting
(included with heater)
Seal Ring
(included with heater)
HOT Outlet
Hex Union Nut
3
Shut-Off
Valve
Cold Water
90° Elbow
Flexible
Connector
T & P
Relief
Vacuum Valve Ass'y
Valve
*
(included with heater)
Seal Ring
(included with heater)
COLD Inlet
Hex Union Nut
Shut-Off
Valve
Cold Water
90° Elbow
Union
3/4" Adaptor
T & P
Sweat x Male Pipe
Relief
Valve *
Vacuum Valve Ass'y
(included with heater)
Seal Ring
(included with heater)
COLD Inlet
Hex Union Nut
Shut-Off
Valve
Cold Water
90° Elbow
Union
T & P
Relief
Vacuum Valve Ass'y
Valve
*
(included with heater)
Seal Ring
(included with heater)
COLD Inlet
Hex Union Nut
Inlet
Inlet
Inlet