Rheem Maximus - Typical Installation

Transformer
(120V / 60Hz)
F
F
F
F
M
M
M
M
F
To Ground Block
3
2
1
3
2
1
3
2
1
F
To Ground Block
To Ground Block
F
F
M
F
M
Power Cord
Display Rocker Switch
on the front display
C1
Blower Power Connector
C2
Ignition Control Power
Connector
C3
M
F
2-520263-2
Disconnect
2-520102-2
Disconnect
Transformer
(120V / 60Hz)
F
F
F
F
M
M
M
M
F
To Ground Block
3
2
1
3
2
1
3
2
1
F
To Ground Block
To Ground Block
F
F
M
F
M
Power Cord
Display Rocker Switch
on the front display
C1
Blower Power Connector
C2
Ignition Control Power
Connector
C3
M
F
2-520263-2
Disconnect
2-520102-2
Disconnect
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.
11
INSTALLATION
To Gas Supply
Manual Gas Shut Off
Drain Valve
Union
Union
Thermal
Expansion Tank
(Not Supplied)
If required, install
per local codes and
tank manufacturer's
instructions.
Hot water outlet
to fixtures
Too cold
water supply
Vacuum Relief Valve (Not supplied)
If required, install per local codes and
valve manufacturer's instructions
Heat Trap
6" Minimum
Heat Trap
6" Minimum
Shut-off
Valve
Shut-off
Valve
Sediment Trap
Temperature & Pressure
Relief Valve
Discharge Line to
suitable open drain
Air Gap 6"
NOTES:
The gas supply piping
must be adequately
supported and aligned to
minimize loads (forces)
on the water heater's gas
valve and burner system.
TYPICAL INSTALLATION
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.