20
Servicing Guide continued-
Certain other control components are available as “Optional“. When these
optional components are installed with the water heater, the control circuit
wiring diagram accordingly will include these components. The optional
equipment available from the manufacturer includes the following:
High Water Pressure Switch
Low Water Pressure Switch
Low Water Level Switch
Alarm Horn
Heating Element Sequencers
Electrical Door Lock
Optional Components
High and Low Water Pressure Controls
These controls interrupt the electrical current to the contactor coil when the
pressure settings are exceeded. The operation and setting of these controls
are described in the manual provided by the control manufacturer. This
manual is included with the water heater Installation and Operating
Instruction manual provided by the manufacturer.
The pressure settings for these controls are adjustable. These controls are
specified for use when the installation has unique pressure requirements that
must be safeguarded. Therefore, before adjusting the pressure values, it is
recommended that you consult the person responsible for the facility that the
water heater is servicing.
The electrical connections are referenced in the Control Circuit Wiring
Diagram and in the pressure control manual provided by the control
manufacturer. Refer to these instructions when servicing the controls.
