Harman Stove Company PB 105 - Manual (Page 26)

26 3-90-07205R19_05/13
Operation
Pellet
Boiler
Outdoor
Air
Reset
Operation
When
the
outdoor
sensor
is
installed,
at
20°
F
. or
below
OA
T
(Outdoor
Air
Temperature),
the
boiler
will
operate
at
the
temperature
set
on
the
Maximum
Temperature
knob.
The
boiler
water
temperature
will
decrease
by
1
degree
for
every
1
degree
in
temperature
rise
of
the
Outside
Air
.
Example
1
OA
T
W
ater
T
emp
Degree
Change
Max
set
at
185
o
65
o
140
o
-45°
Min
set
at
140
o
60
o
145
o
-40°
55
o
150
o
-35°
50
o
155
o
-30°
45
o
160
o
-25
o
40
o
165
o
-20
o
35
o
170
o
-15
o
30
o
175
o
-10
o
25
o
180
o
-5
o
20
o
185
o
0
o
15
o
185
o
0
o
10
o
185
o
0
o
5 o
185
o
0°
0 o
185
o
Example
2
OA
T
W
ater
T
emp
Degree
Change
Max
set
at
180
o
65
o
150
o
*
Min
set
at
150
o
60
o
150
o
*
55
o
150
o
*
50
o
150
o
-30
o
45
o
155
o
-25
o
40
o
160
o
-20
o
35
o
165
o
-15
o
30
o
170
o
-10
o
25
o
175
o
-5
o
20
o
180
o
0
o
15
o
180
o
0
o
10
o
180
o
0
o
5 o
180
o
0
o
0 o
180
o
0
o
*
No
change
in
boiler
temperature
after
reaching
minimum
setpoint
temperature.