115
Operating the Boiler
Item
Description
15. Freeze
Protection
Set the pump freeze protection
temperature.
●
Setting range: 43°F (6°C) – 50°F
(10°C)
●
Default: 50°F (10°C)
Note
The system freeze
protection temperature
is set based on the
pump freeze protection
temperature.
16. Auto-Fill
Pressure
Set the Auto-Fill Pressure.
●
Setting range: 12-30 psi
●
Default: 12 psi
17. Boiler
Pump
Delay**
Set the space heating pump over-
run time.
●
Setting range: 3 – 40 min
●
Default: 40 min
18. DHW
Pump Cycle
Time
Set the DHW pump cycle time.
●
Setting range: 0 – 20 min
●
Default: 3 min
19. Recirc.
Interval Time
Set the recirculation or HotButton
operation time.
●
Setting range: 1 – 120 min
●
Default: 20 min
20. Recirc.
Sampling
Time
Set the recirculation sampling
time.
●
Setting range: 1 – 120 min
●
Default: 30 min
21. Recirc. Off
Diff. Temp
Set the temperature range to turn
off recirculation or HotButton
operation.
●
Setting range: 5°F (3°C) – 54°F
(30°C)
●
Default: 9°F (5°C)
22. Fixture
Dist.
(HotButton)
Set the approximate distance to
the furthest fixture to virtually
turn-off recirculation when the
HotButton mode is used.
●
Setting range: 15 ft (4.5 m)
– 660 ft (198 m) (5 ft (1.5 m)
intervals)
●
Default: 30 ft (9 m)
Item
Description
8. SH Max
Limit
Set space heating maximum heat
capacity limit.
●
Setting range: (Space heating
Min capacity limit +20) % –
100%
●
Default: 100%
9. SH Min
Burning Time
Set the low-load combustion time
at initial operation.
●
Setting range: 1 – 20 min
●
Default: 1 min
10. Burning
Acceleration
Time
Set the time to reach the
maximum space heating capacity
after initial operation.
●
Setting range: 0 – 20 min
●
Default: 1 min
11. Zone T/S
Start-up Delay
Time
Set the delay time for the burner
to operate when there is a call for
heat for a zone valve.
●
Setting range: 0–120 sec
●
Default: 0 min
12. Anti Fast
Cycling Time*
Set the anti-fast cycling time.
●
Setting range: 0 – 20 min
●
Default: 3 min
13. DHW Min
Limit
Set the DHW supply minimum
temperature.
●
Setting range: DHW minimum
capacity (%) – [DHW MAX
capacity limit - 20] %
●
Default: Boiler’s minimum heat
capacity
14. DHW Max
Limit
Set the DHW supply maximum
temperature.
●
Setting range: [DHW Min
capacity limit + 20] % – 100%
●
Default: 100%
Summary of Contents for NCB-190/060H
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