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Item
Select a DHW control
type.
6. DHW control
method
●
* DHW Priority Time refers to the time duration that the
boiler will give priority to DHW over space heating.
** This function will provide protection from growth
of legionella bacteria in the DHW tank only. It will
not protect water supply piping.
A mixing valve must be installed on the DHW
supply line when this mode is enabled as water
temperatures will exceed 140°F (60°C).
CAUTION
When "5. Anti Legionella Function" is set to
"Enable" and even if the DHW tank is set to less
than 140°F (60°C), hot water 140°F (60°C) or
higher may be discharged approximately once
a week.
11.10 Viewing Error History
To view the error history, press the Menu button
(
), and then select "4. Error History".
A list of 10 recent errors are displayed on the screen,
with the most recent error displayed at the top of
the list.
108 Operating the Boiler
Description
1. Supply water
2. Sys Supply water
Default: Supply water
Rotate the Command dial (
the list of errors. Press the Command dial (
select an error to view detailed information.
Press the Back button (
screen or menu.
The front panel displays flashes in
Note
●
red and the error icon is displayed
(flashing) when a level 1 error is
detected. You can press the command
dial to enter error display mode. Boiler
operation is maintained during a level
1 error.
A level 1 error is automatically cleared
●
when the problem is resolved.
You can press the Power button (
●
to clear a level1 error. Then the error
is cleared if the problem has been
resolved.
11.11 Viewing Other System
Information
To view the miscellaneous system information, press
the Menu button (
), and then select "5. EMS
Data".
Rotate the Command dial (
the information items. Press the Command dial (
to select an item and view the information.
) to switch between
) to
) to return to the previous
)
) to switch between
)
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