Rheem Gas Heavy Duty Water Heater Models 265 Litre and 275 Litre - Manual (Page 29)

CONNECTIONS – ELECTRICAL
29
WIRING A POWER FLUED SYSTEM TO THE WATER HEATER
An indoor model can be wired to a power flued system. A power flued system
must be designed by a qualified person to suit the particular installation and for
approval by the gas supply authority. The power flue system must be
interlocked with the water heater(s) to prevent the water heater(s) from
operating if the power flue is not working.
The principle of operation for multiple gas water heater control with a power
flue is the same as for a single water heater. Any water heater can switch on
the fan and the burners can only come on when the sail switch is closed.
To connect a power flue into the water heater system design, it is necessary to
remove the bridging wire from the terminal block of the water heater and
connect the wiring to the power flue to these two terminals. Refer to the wiring
diagrams for the connection points on the water heater.
621 265 621 275
Wiring Diagrams