Lochinvar 286 Manuel D’Utilisation

The control can be configured to display temperature in 
either °F or °C.  This parameter can be changed by the user 
or the installer by accessing the Temperature Units parameter.  
The default is °F.  To change the temperature units, access 
the clock menu as described in the User section (this page).  
Rotate the NAVIGATION dial until the arrow (>) is pointing 
to “TEMPERATURE UNIT °F”.  Press the NAVIGATION 
dial once.  The temperature unit will begin to flash.  Rotate 
the NAVIGATION dial until the desired temperature unit 
is shown.  Save the new setting as described in the Saving 
Parameters section (page 10).

Any Night Setback On trigger currently active or scheduled 
within the next seven (7) days can be skipped.  To skip a 
trigger, rotate the NAVIGATION dial until the arrow (>) is 
next to the trigger you wish to skip.  Press the NAVIGATION 
dial once.  “SK” will appear next to that trigger to indicate 
that it will be skipped.  You can restore an upcoming trigger 
by selecting that trigger, and pressing the NAVIGATION dial 
again.  The “SK” next to that trigger will disappear.

To save any changes and return to the Home Screen, press 
the RIGHT SELECT [HOME] key.  To return to the Status 
Screen without saving the changes, press the LEFT SELECT 
[EXIT] key.

In compliance with Energy Conservation Standards, this boiler 
is equipped with outdoor air reset, a feature that saves energy 
by reducing the boiler water temperature as the heating load 
decreases.  Three (3) individual outdoor resets for low outdoor 
temperatures are available.  The reset curve parameters can be 
changed by the installer by accessing the Outdoor Reset menu.

There are three (3) individual user set points for better zone 
control.  These are listed as SH1 Set Point through SH3 Set 
Point.  These set points provide a maximum boiler water 
temperature limit to the outdoor reset curve of each zone.  The 
boiler operating set point is calculated from the individual reset 
curve of each zone.  If multiple space heating set points are 
calling for heat the highest set point has priority.  The range is 
SH Minimum Set point to SH Maximum Set point (32°F (0°C) - 
190°F (88°C)).  The default is 125°F (52°C).

By installing a tank sensor, the SMART SYSTEM control can 
perform the tank thermostat function.  The SMART SYSTEM 
control automatically detects the presence of this sensor, and 
generates a DHW call for heat when the tank temperature 
drops  6°F (-14°C) below the tank set point differential (Tank 
Set point Differential parameter), and finishes the call for heat 
when the tank temperature reaches tank set point + offset.  
This parameter can be changed by the installer by accessing the 
DHW Tank Set point parameter.  The temperature range of this 
parameter is 68°F (20°C) to 190°F (88°C).  The default value is 
125°F (52°C).

Press the NAVIGATION dial once. A menu will appear 
showing the SH1, SH2, SH3, and DHW Set Points. Rotate 
the NAVIGATION dial until the arrow (>) is pointing to the 
setting you wish to change.  Press the NAVIGATION dial again.  
The value of the selected setting will begin to flash.  Rotate the 
NAVIGATION dial to adjust the value.  Save the new setting as 
described in the Saving Parameters section (page 10).

Mixing valves are required for the 
protection of any low temperature loops.

       Outdoor Knight Boiler User’s Information Manual