14
SEQUENCE OF OPERATION
User Settings Display Possible
Value
Factory
Setting
Overview
On/Off Mode ON ON
OFF
Press and hold the MODE/PWR button for 2 seconds to turn
the unit On or Off.
OFF OFF
Note: When electrical power has been removed and re-applied, when the unit is turned on it will automatically enter a dry re test
mode (If dFt is on, see Conguration). The display will ash dFt. To bypass the test, Press and hold Up ▲ and Down ▼ arrow buttons
for 2 seconds.
To access the following: Unit must be in the “ON” Mode. Press the MODE/PWR button to select setting.
Press the up ▲ or down ▼ arrow buttons to change setting.
Press the MODE/PWR button to save setting. Display will ash three times to conrm setting is saved
Automatically exits and saves after 5 seconds.
CHS – Comfort Heating CHS
90-180°F
32-82°C
150°F Press the MODE/PWR button to select setting. Press the
up ▲ or down ▼ arrow buttons to change setting. Hold the
button to scroll rapidly.
DHW – Domestic Hot Water dHW 170°F
DFS – Differential Setting
dFS
4-20°F
10°F
2-11°C
Conguration Settings
To Access: Unit must be in the “OFF” Mode. Press and hold Up ▲ and Down ▼ arrow buttons for 10 seconds
Press the up or down arrow button to choose selection.
Press the MODE/PWR button to enter the selection. Press the Up ▲ or Down ▼ arrow button to change the setting.
Press MODE/PWR button so save selection.
To Exit: Press and hold Up ▲ and Down ▼ arrow buttons for 2 seconds. Automatically saves setting and exits after 60 seconds.
DEG – Temperature Scale C C
F
Press the Up ▲ or Down ▼ arrow buttons to change
setting.
F F
STG – Number of Heater
Elements
2 2
2 or 4
Press the Up ▲ or Down ▼ arrow buttons to change
setting.
4 4
EL – Active Elements 1-2 1-2
1-2
Available only if STG is 2. Press the Press the Up ▲ or
Down ▼ arrow buttons to change setting.
3-4 3-4
DFT – Dry Fire Test Active/
Inactive
ON/OFF On
On
Press the Up ▲ or Down ▼ arrow buttons to change setting
OFF
Setting the AT Boiler Controller
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