101
Operating the Boiler
11.4.2 Adjusting the Space Heating Temperature (When “3. Zone Priority Setting” is
enabled)
To adjust the heating temperature:
1. In normal operation mode, rotate the Command dial (
). The space heating temperature ( ) is highlighted
on the screen.
2. Press the Command dial (
) to select the desired zone, and then press the Command dial (
). The selected
zone’s temperature will flash.
Note
The number of the zones differs depending on the zone settings and Pump 1 settings.
Zone Settings Pump1 Settings
Space heating settings for each zone
N/A
N/A
Space heating temperature settings
Zone Pump
System
DHW Pump
Space heating temperature settings for Zone 2 and Zone 3
(Pump 1 Settings” is set to “DHW Pump”.)
Zone Pump
System
Zone1 Pump
Space heating temperature settings for Zone 1, Zone 2 and
Zone 3
Zone Valve
System
DHW Pump
(Default)
Space heating temperature settings for Zone 1, Zone 2 and
Zone 3
For more information on the zone settings and zone priority settings, refer to “11.8 Setting the
Space Heating Operation” on page 104.
3. Rotate the Command dial (
) to the right or left to increase or decrease the selected zone’s space heating
temperature.
4. Press the Command dial (
) to confirm the new temperature.
5. Press and hold the Command dial (
) for more than 2 seconds to return to normal operation mode, or
rotate the Command dial (
) to adjust another zone’s temperature.
Note
●
The space heating temperature cannot be adjusted when the Outdoor Reset Control is used.
●
The space heating temperature cannot be adjusted if the boiler is operating as a sub unit in a
cascade system. The main unit’s set temperature will be displayed on the screen.
●
In case of outdoor reset sensor malfunction, the boiler will operate at this set temperature.
●
Take note of the original heating temperature in case you want to restore it to the default.
●
The default space heating supply water temperature range is 104°F (40°C, Absolute MIN) to 180°F
(82°C, Absolute MAX).
●
The default space heating return water temperature range is 86°F (30°C, Absolute MIN) to 149°F
(65°C, Absolute MAX).
●
You can adjust the temperature ranges in the parameter settings menu.
●
The boiler will retain your settings during a power outage.
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