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8.9
MODE 4 & 5: OUTDOOR RESET OPERATION: ADJUST DISPLAY
From the Home display;
1) Press
Display
simultaneously to view the following parameters:
Parameter
Name
Mode
Outdoor Start
Temperature
Outdoor
Design
Temperature
Boiler Start
Temperature
Boiler Design
Temperature
Boil Max
Boil Min
Boil Mass
(Mode 5
ONLY)
Parameter Description
Operating mode for the boiler.
NOTE: A complete description of
each mode can be found in section
8.4 Modes of Operation in this
manual.
Outdoor starting temperature used in
the reset ratio for the heating system.
Typically set to the desired building
temperature.
Outdoor design temperature used in
the reset ratio for the heating system.
Set to the coldest annual outdoor
temperature in the local area.
Starting water temperature used in
the reset ratio calculation for the
heating system. Typically set to the
desired building temperature.
Boiler design water temperature used
in the reset ratio calculation for the
heating system. Set to the boiler
water temperature required to heat
the building on the coldest annual
outdoor temperature.
Maximum boiler target temperature
Minimum boiler target temperature
Thermal mass of boiler. This
determines interstage delay and
minimum on and minimum off times.
27
Parameter
Range
1 to 8
Default = 1
o
35 to 85
F
o
(2 to 29
C)
o
Default = 60
F
o
(21
C)
o
-60 to 50
F
o
(-51 to 10
C)
o
Default = -10
F
o
(-23
C)
o
35 to 150
F
o
(2 to 66
C)
o
Default = 70
F
o
(21
C)
o
70 to 230
F
o
(21 to 110
C)
Default = 180
o
F
o
(82
C)
o
120 to 225
F
o
(48 to 107
C)
o
Default = 210
F
o
(99
C)
o
80 to 180
F
o
(26 to 82
C)
Default = 130
o
F
o
(54
C)
1 to 3
Default = 1
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