Rinnai I
-
Series Condensing Boiler Combi Manual
93
Boost mode allows the boiler to override the target temperature determined by the outdoor reset
control, and will boost the boiler target temperature to the setting of Parameter 01 after a
continuous run time or an interval as selected in Parameter 02. The boost function is active until the
call for heat is satisfied or the boiler cycles off.
Boost mode works when the outdoor sensor detects higher outdoor temperatures than expected.
For example: In the case of selecting curve 1 on parameter number
01
and 30 minutes on parameter
number
02
, outdoor temperature is 51°F, and supply temperature is 140°F. When the boiler
continues operating with firing for 30 minutes, the target supply temperature will rise toward 180°F.
This control continues until shut down.
80
100
120
140
160
180
200
0
10
20
30
40
50
60
70
80
0°F
(
-
18°C)
20°F
(
-
7°C)
40°F
(4°C)
80°F
(27°C)
Outdoor Temperature
Su
p
p
ly
Te
m
p
eratur
e
Example
180°F
(82°C)
140°F
(60°C)
51°F
(11°C)
Curve 1
The maximum outdoor temperature parameter setting enables the boiler to shut down when the
outdoor temperature is higher than 77°F (25°C). This mode can prevent the boiler from operating
under warm conditions unexpectedly.
Maximum outdoor temperature is selected by setting parameter number
03
to
“77
°F (25°C)
”
or
“
No Maximum
”
(see section
“12.4
Parameter Settings
”
for more information).
200°F (93°C)
180°F (82°C)
160°F (71°C)
140°F (60°C)
120°F (49°C)
100°F (38°C)
Содержание I Series
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