10 Operating the Boiler
3.3 Viewing Basic Information
To view information about the boiler, press the Mode button three
times. “INFO” will appear on the display.
MODE
Press the + or – buttons to switch between the information types.
Display Description
psi
O/R
S
R
Space heating supply water
temperature (°F)
psi
O/R
S
R
Space heating return water
temperature (°F)
psi
O/R
S
R
Domestic hot water outlet
temperature (°F)
psi
O/R
S
R
Cold water inlet temperature (°F)
psi
O/R
S
R
Domestic Hot Water (DHW) Flow
rate in GPM
psi
O/R
S
R
Outdoor air temperature (°F)
(with optional Outdoor Temperature
Sensor only)
3.2.2 Adjusting the DHW Water Temperature
WARNING
Before adjusting the water temperature, read “To prevent
burns:” on page 4 carefully. Water above 120°F can cause
instant scalding, severe burns, or death.
To adjust the water temperature:
1. Make sure that all hot water faucets are closed, and ensure that
the internal circulator and any external circulating pumps are
off.
2. Press the Mode button twice. The DHW mode icon turns on.
3. Press + (Up) or – (Down) buttons until the desired temperature
appears on the display.
MODE
You can adjust the temperature while the display is flashing. Once
the display stops flashing, the temperature setting is stored.
Temperature range
Adjusting the water
temperature
86-120°F (Fahrenheit mode)
30-50 °C (Celsius mode)
1°F or 1°C increments
120-140°F (Fahrenheit mode)
50-60 °C (Celsius mode)
Press for 2 seconds to adjust in
5°F or 2°C increments
Note
The boiler will retain your settings during a power
outage.
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