Installation / Operation Instruction Manual

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 Sw itch
• Low Water Pressure Switch
• Low Water Level Sw itch
• 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.