Lochinvar 100 Series Instruction Manual page 23

STATE
The control system has detected/declared a Fault Condition. The control system will discontinue heating operation and "lock
Fault 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.
MENUS
Most commonly accessed menu. Operating Set Point, Differential settings, Tank Temperature and Tank Probe Offset are
Temperatures
located in this menu.
Current Operating State/Mode (heating/standby etc) and status (open/closed - on/off - yes/no) of monitored water heater
Heater Status
functions and components are displayed in this menu.
Economy Mode Seven day 24 hour time clock with temperature set back capability to reduce operating costs during unoccupied or reduced
Setup demand periods.
The control system's CCB (Central Control Board) features on board SPDT (single pole double throw) relay contacts for
Alarm Output
building EMS (Energy Management System) notification of operational conditions such as Fault Conditions and heating
Setup
mode status. This menu features a list of user definable conditions for relay activation.
Temperature units (°F or °C), appearance (brightness contrast) and backlight delay user adjustable settings are located in
Display Settings
this menu.
Elapsed time of operation, total heating cycle time, heating cycle count, heating element bank(s) cycle count and heating
Heater Information
bank 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.
Retains 9 event history of Fault/Alert messages with time stamp. The Fault History is useful when dealing with intermittent
Fault History
operational problems or when the customer has reset the control system prior to a service agent's arrival.
Running total of all Fault and Alert Conditions that have occurred are displayed in this menu. Can help determine potential
Fault Occurrence
root cause(s) of related operational problems.
Restore Factory This control system feature allows the user to restore control system user settings to their factory default settings. Alarm
Defaults Output Setup and Display Settings menu items ARE NOT changed when factory defaults are restored.
Accessible by pressing the corresponding Operational Button from most menus and screen displays. This menu provides
Help Menu access to instructions and explanations for user settings, Operating States, Status Icons, manufacturer's web address, tech-
nical support phone number and service agent contact information.
Table 7. Operating States
DESCRIPTION
Table 8. Control System Menus
DESCRIPTION
Control System Operation
Commercial Electric Water Heaters • 23