A.O. Smith Dura-Power DSE-5, Инструкция по эксплуатации, Страница: 19 / 40

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taBle 4 - operatInG states
state descrIptIon
Standby
The water heater is not in an active heating cycle. This usually indicates the temperature in the tank has reached the
Operating Set Point and the control system has terminated the heating cycle.
Heating The control system is in the Heating Mode. At least one heating element has been energized.
Alert
The control system has detected/declared an Alert Condition. The controls system will continue heating operation.
However, a Qualified Service Agent should be contacted to check/service the water heater.
Fault
The control system has detected/declared a Fault Condition. The control system will discontinue heating operation and
“lock out.” Power to the water heater must be cycled off and on to reset the control system. Note; cycling power will not
reset the control system until the condition that caused the fault has been corrected.
taBle 5 - control systeM Menus
Menus descrIptIon
Temperatures
Most commonly accessed menu. Operating Set Point, Differential settings, Tank Temperature and Tank Probe
Offset are located in this menu.
Heater Status
Current Operating State/Mode (heating/standby etc) and status (open/closed - on/off - yes/no) of monitored
water heater functions and components are displayed in this menu.
Economy Mode Setup
Seven day 24 hour time clock with temperature set back capability to reduce operating costs during unoccupied
or reduced demand periods.
Alarm Output Setup
The control system’s CCB (Central Control Board - see wiring diagrams) features on board SPDT (single pole
double throw) relay contacts for building EMS (Energy Management System) notification of operational conditions
such as Fault Conditions and heating mode status. This menu features a list of user definable conditions for
relay activation.
Display Settings
Temperature units (°F or °C), appearance (brightness contrast) and backlight delay user adjustable settings are
located in this menu.
Heater Information
Elapsed time of operation, total heating cycle time, heating cycle count, heating element(s) cycle count and on
time along with UIM and CCB software revisions can be viewed in this menu.
Current Fault/Alert
Displays any current Alert or Fault messages.
Fault History
Retains 9 event history of Fault/Alert messages with time stamp. The Fault History is useful when dealing with
intermittent operational problems or when the customer has reset the control system prior to a service agent’s
arrival.
Fault Occurrence
Total accumulated number each individual Fault condition has occurred is displayed in this menu. This
running total of Fault Occurrences can be useful in determining which (if any) operational problems have been
persistent.
Restore Factory Defaults This control system feature allows the user to restore control system user settings to their factory default settings.
Alarm Output Setup and Display Settings menu items ARE NOT changed when factory defaults are restored.
Help Menu
Accessible by pressing the corresponding Operational Button from most menus and screen displays. This menu
provides access to instructions and explanations for user settings, Operating States, Status Icons, manufacturer’s
web address, technical support phone number and service agent contact information.