Viewable And Changeable Control Parameters; General - Lochinvar ECOKNIGHT EKW116CE Installation, Commissioning, Maintenance And User Instructions

22.0 VIEWABLE AND CHANGEABLE CONTROL PARAMETERS

Before changing parameters, note the settings so that the unit can be returned to its original
operating parameters. These can be uploaded to a USB for later use see 21.10.1.

GENERAL

22.1.1
VACATION MODE
This parameter forces the DHW set points to decrease by the amounts programmed in the Night Setback Offset parameters. This is
used to save energy, such as when the building is unoccupied for an extended period of time. For this function to work, the DHW
Night Setback Offset parameters must be set to a value higher than 0°. The default value of this parameter is OFF.
22.1.2
TIME AND DATE
The control uses an internal clock for the night setback feature and for logging of events. For these features to work correctly, the
clock must be set when the water heater is first installed or anytime the water heater has been powered off for more than four (4)
hours. This parameter must be accessed to set the clock.
The internal clock does not adjust for British summer time and therefore, will require a manual
adjustment. The clock is automatically updated whenever a PC is connected and the Win_Pro-
installer program is started.
22.1.3
SOFTWARE VERSION
The software version allows the user to view the software version in use by the control. This software controls the operation of the
water heater. When a new software version becomes available, the existing control can be replaced with a new control to update
the software.
Software version is read only.
22.1.4
TEMPERATURE UNITS (°C / °F)
The control can be configured to display temperature in either °C or °F. This parameter can be changed by the user or the installer
by accessing the Temperature Units parameter. The default is °F.
22.1.5
DOMESTIC HOT WATER (DHW) NIGHT SETBACK OFFSET
Once the unit's internal clock has been set correctly, the Night Setback feature can be used to program a lower set point during
unoccupied times. When in night setback, the control reduces the set point by a fixed amount. For DHW, it subtracts the DHW night
setback offset from the tank set point (Tank Set point parameter).
The DHW night setback will not work without a tank sensor installed.
22.1.6
DOMESTIC HOT WATER (DHW) NIGHT SETBACK ON AND OFF TIMES
These are the times at which the DHW Night Setback Offsets become active and inactive. There are seven (7) stop times and seven
(7) start times each for the DHW night setback functions. Any start or stop time may be set to any time during the week. When a
start time and a stop time are programmed for the same day and time, the stop time has priority (this is how a start time can be
disabled). The installer can access the DHW Night Setback start and stop times by accessing the DHW NSB On/Off Times
parameter. These settings can be adjusted as follows:
1. When the screen is first accessed, start and stop triggers 1 are displayed. If a different trigger number is desired, rotate the
NAVIGATION dial until the desired trigger number appears. Once it is found, press the NAVIGATION dial to adjust the start
and stop times. The day of the week for the start time will flash.
2. Rotate the NAVIGATION dial to adjust the day of the week of the start trigger. Once it is set to the desired day of the week,
press the NAVIGATION dial again. The start time hour will flash.
3. Rotate the NAVIGATION dial to adjust the start time hour to the desired time. Press the NAVIGATION dial again. The
start time minutes will flash.
4. This process may be continued until the start and stop days and times are adjusted as desired. When finished with this set
of triggers, press the [SAVE] key.
5. Rotate the NAVIGATION dial to select another set of start and stop triggers, or press the [EXIT] key to return to the previous
menu.
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