Table des Matières
Publicité
Les langues disponibles
Les langues disponibles
12.5 Outdoor Reset Control
The Outdoor Reset Control feature may be used to enhance energy
efficiency while maintaining optimal heating performance. With
the Outdoor Reset Control, the space heating temperature setting
automatically changes according to the outdoor temperature and
the current space heating system application (system load).
You can configure the Outdoor Reset Control settings on the front
panel. Refer to "11.3.3 Setting the Space Heating Operation" on
page 86 and "11.4.3 Setting the Operation Parameters" on page
90.
The Outdoor Reset Control feature requires installation
Note
of an outdoor temperature sensor, and it only works
when the boiler is running in the normal operation
mode. It does not work when the boiler is running in
either the Minimum (MIN) or Maximum (MAX) mode, or
when the boiler's front panel displays a fault.
Outdoor
High MIN
Absolute
MAX
Absolute
MIN
°F
113 104 95 86
77 68
59 50
41
°C
45 40
35 30
25 20
15 10
5
Space Heating Temperature Setting for the
Outdoor Reset Control Feature
The following tables list the default space heating temperature
range by system heat load and the applicable outdoor
temperature ranges.
Outdoor
Low MIN
°F °C
194
90
185
85
176
80
167
75
High Mass Radiant
158
70
Low Mass Radiant
149
65
Cast Iron Baseboard
140
60
131
55
Custom
122
50
Radiator
113
45
104
40
Finned Tube Baseboard
95
35
Fan Coil
86
30
77
25
68
20
59
15
50
10
32 23 14
5
-4 -13
0
-5 -10 -15 -20 -25
Outdoor Temperature Sensor Installation Guidelines
Supply Set Point
Heat Load
Range
Finned Tube
120-180°F
Baseboard (default)
(48.5-82°C)
140-180°F
Fan Coil
(60-82°C)
100-170°F
Cast Iron Baseboard
(37.5-76.5°C)
80-140°F
Low Mass Radiant
(26.5-60°C)
80-120°F
High Mass Radiant
(26.5-48.5°C)
120-170°F
Radiators
(48.5-76.5°C)
104-180°F
Custom
(40-82°C)
Outdoor Temperature Range and Default Temperature Settings
Set Point
Range
-4°F (-20°C) to
Outdoor Low
Outdoor High
Temperature
Temperature Set
Point - 9°F (5°C)
Outdoor Low
Outdoor High
Temperature Set
Temperature
Point + 9°F (5°C) to
104°F (40°C)
Return Set Point
Range
101-147°F
(38-63.5°C)
116-147°F
(46.5-63.5°C)
86-139°F (30-59°C)
70-116°F
(21-46.5°C)
70-101°F (21-38°C)
101-139°F
(38-59°C)
86-149°F
(30-65°C)
Remarks
Default: 14°F
(-10°C)
Default: 70°F (21°C)
Appendixes
105
Publicité
Chapitres
Table des Matières
