114 Operating the Boiler
Press the Back button (
) to return to the previous
screen or menu.
Item
Description
1. Supply MIN
Set-point
Set the space heating supply
minimum temperature.
●
Setting range: 77°F (25°C) –
[MAX Set-point – 36°F (20°C)]
●
Default: 104°F (40°C)
2. Supply MAX
Set-point
Set the space heating supply
maximum temperature.
●
Setting range: [MIN Set-point +
36°F (20°C)] – 185°F (85°C)
●
Default: 180°F (82°C)
3. Return MIN
Set-point
Set the space heating return
minimum temperature.
●
Setting range: 68°F (20°C) –
[MAX Set-point – 18°F (10°C)]
●
Default: 86°F (30°C)
4. Return MAX
Set-point
Set the space heating return
maximum temperature.
●
Setting range: [MIN Set-point +
18°F (10°C)] – 158°F (70°C)
●
Default: 149°F (65°C)
5. SH Burner
Off Diff
Set the temperature range to turn
off space heating.
●
Setting range: 2°F (1°C) – 54°F
(30°C)
●
Default: 4°F (2°C)
6. SH Burner
On Diff
Set the temperature range to turn
on space heating.
●
Setting range: - 2°F (1°C) – 54°F
(30°C)
●
Default: 5°F (3°C)
7. SH Min
Limit
Set space heating minimum heat
capacity limit.
●
Setting range: Space heating
Min capacity (%) – [space
heating min capacity limit -20])
%
●
Default: Boiler’s minimum heat
capacity
11.6.3 Setting the Operation
Parameters
To set the boiler’s operation parameters, press the
Back button (
) and the Menu button (
)
simultaneously for 3 seconds, and then select “3.
Parameter Settings”.
CAUTION
Parameters must be set by a qualified
professional with an extensive understanding
of the boiler system. Setting parameters
improperly may lead to property damage or
injury.
In the password screen, rotate the Command dial
(
) to change numbers and places, and press the
Command dial (
) to enter the password.
The factory default password is “1234”.
After entering the parameter setting screen, rotate
the Command dial (
) to switch between the
parameters or to increase/decrease setting values.
Press the Command dial (
) to select a parameter
or to confirm after making changes.
Summary of Contents for NCB-190/060H
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