Lochinvar HERALD HCB116CE, Installation Manual, Page: 90 / 92

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23.4 SMART SYSTEM CONTROL
1 USB Drive
2 PC Connection
3 Left select key
4 Navigation dial
5 Reset switch
6 Right select key
The information on the bottom of the display shows the functions of the two SELECT keys on both corner, and the
NAVIGATION dial in the centre.
MENU Left SELECT key
SETPOINTS NAVIGATION dial-pressing down
SHDN Right SELECT key
The smart system control face instantly informs the user of the status of the boiler by changing colour according to the
status of the boiler as below.
Normal operation Service required Boiler is not working
23.5 TEMPERATURE ADJUSTMENT PROCEDURE
23.5.1 CENTRAL HEATING SETPOINT
With the boiler firing, the setpoint can be adjusted using the NAVIGATION dial on the SMART SYSTEM control panel.
When “
↓
SET POINTS” is flashing at the bottom of the display the NAVIGATION dial can be used to set and store the
desired set point.
23.5.2 DHW SETPOINT
If the stored water temperature is to be controlled by a thermostat, the setting should be adjusted on the thermostat
itself. If the stored water temperature is to be controlled by a tank sensor, the default setpoint is 52

C.
The setpoint should be adjusted to ensure that the water is stored at 60°C and distributed at 50°C within 1 (one) minute
at all outlets. Care is needed to avoid much higher temperatures because of the risk of scalding. At 50°C the risk of
scalding is small for most people, but the risk increases rapidly with higher temperatures and for longer exposure times.
The risk to young children and to those with a sensory or mobility loss will be greater. Where a significant scalding risk
has been identified, the use of thermostatic mixing valves on baths and showers should be considered to reduce
temperature, these need to be placed as close to the point of use as possible.
Should the default value need adjusting, please refer to Section 21.2 Temperature adjustment
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