Typical Installation - Rheem Maximus Manual

A correct polarity 120V 50/60 Hz power supply with suitable disconnect means, must be connected to the black and white leads
provided. The maximum current draw by these models is 7 Amps. The water heater, when installed, must be electrically grounded in
accordance with local codes or, in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70 in the United States,
or CSA C22.1 Electrical Code, in Canada. Improper grounding or polarity may result in abnormal operation of the heater.
2-520263-2
F
Disconnect
2-520102-2
M
Disconnect
F
Power Cord
To Ground Block
Heat Trap
6" Minimum
Hot water outlet
to fixtures
For Commercial applications disconnects
can be cut off and replaced with wire nuts to
connect the leads to the power cable from
the electrical junction box if necessary.
F
Power Cord
To Ground Block
2-520263-2
F
Disconnect
2-520102-2
M
NOTES:
Disconnect
The gas supply piping
must be adequately
supported and aligned to
minimize loads (forces)
on the water heater's gas
valve and burner system.
Transformer
(120V / 60Hz)
F
M
M
F
F
M
M
F

TYPICAL INSTALLATION

Union
Temperature & Pressure
Transformer
Relief Valve
(120V / 60Hz)
F
M
M
Discharge Line to
suitable open drain
F
F
M
M
F
Drain Valve
Air Gap 6"
F
To Ground Block
F M
F M
F
To Ground Block
To Gas Supply
Manual Gas Shut Off
Sediment Trap
Union
Vacuum Relief Valve (Not supplied)
If required, install per local codes and
valve manufacturer's instructions
Heat Trap
6" Minimum
Shut-off
Valve
F
To Ground Block
F M
Thermal
Expansion Tank
F M (Not Supplied)
If required, install
per local codes and
tank manufacturer's
instructions.
F
To Ground Block
INSTALLATION
Display Rocker Switch
3
on the front display
2
1 C1
3 Blower Power Connector
2
C2
1
Ignition Control Power
Connector
C3
3
2
1
Display Rocker Switch
Too cold
3
on the front display
2
water supply
1 C1
3 Blower Power Connector
2
C2
1
Shut-off
Valve
Ignition Control Power
Connector
C3
3
2
1
11