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O
perating the Boiler 45
Setting the Boost Interval Time
Display
Description
Boost interval ti
m
e (
m
in)
The boost interval ti
m
e
m
ay be set to prevent interruption in
space heating while using the
O
utdoor Reset Control
m
ode,
due to changes in heat load conditions. With the boost interval
ti
m
e enabled, the boiler increases the space heating supply
te
m
perature by 5°C and the return te
m
perature by 3°C after a
set ti
m
e elapses.
Boost Interval Time and Temperature Setting
Setting
Range
Remarks
Boost
I
nterval
Ti
m
e
O
FF (0), 1–120
m
in
Default:
O
FF (0)
Boost
Te
m
perature
Space Heating Supply (Fixed
Value): 5°C
Space Heating Return (Fixed
Value): 3°C
Setting the Max Heat Capacity for Space Heating
Display
Description
Space heating
m
ax heat
capacity (%)
This
m
enu is used to configure the desired space heating
capacity. When the boiler operates in the Nor
m
al
m
ode, the
m
ax
space heating capacity is li
m
ited to the set value (%).
Space Heating Max Heat Capacity Setting Range
Range
Remarks
[Space Heating
M
in Heat
Capacity set point + 20%] –
100%
Default: 100%
Setting the Lowest Outdoor Temperature
Display
Description
Lowest outdoor te
m
perature
(°C)
Lowest outdoor te
m
perature
not in use
This
m
ode is used to configure the lowest outdoor te
m
perature.
The boiler will operate at the high end of the supply or return
set-point range at this outdoor te
m
perature.
Outdoor Low Temperature Setting Range
Range
Remarks
-20°C – [
O
utdoor
M
ax
Te
m
perature set point - 5°C]
Default: - 10°C
Setting the Highest Outdoor Temperature
Display
Description
Highest outdoor te
m
perature
(°C)
Highest outdoor te
m
perature
not in use
This
m
ode is used to configure the highest outdoor
te
m
perature. The boiler will operate at the low end of the supply
or return set-point range at this outdoor te
m
perature.
Outdoor High Temperature Setting Range
Range
Remarks
[
O
utdoor
M
in Te
m
perature set
point + 5°C] – 40°C
Default: 21°C
Summary of Contents for NCB-24LDWE
Page 65: ...Appendices 65 12 4 Ladder Diagram 3 15A...
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