
Part number 550-100-305/0118
68
AquaBalance
TM
W
ALL
M
OUNT
GAS
-
FIRED
WATER
BOILER
—
Boiler Manual
Figure 95
HIGH Altitude Fan Speeds for WMB-120 boilers
120KBTU - Natural Gas
ALTITUDE
LOW FIRE
HIGH FIRE (CH & DHW)
Blower Speed
(b06)
CO2 (%)
CO (PPM)
Blower Speed
(b04 & b05)
CO2 (%)
CO (PPM)
0 - 2,000'
40
8.0 - 9.0
<20
200
9.0 - 9.5
<110
2,000' - 4,000'
43
8.0 - 9.0
<20
200
9.0 - 9.5
<110
4,000'-5,000'
46
8.0 - 8.5
<20
200
8.7 - 9.0
<150
5,000'-6,000'
49
8.0 - 8.5
<20
200
8.7 - 9.0
<150
6,000' - 7,000'
51
8.0 - 8.5
<20
200
8.7 - 9.0
<150
7,000' - 8,000'
52
8.0 - 8.5
<20
200
8.7 - 9.0
<180
8,000' - 9,000'
53
8.0 - 8.5
<20
200
8.7 - 9.0
<180
9,000' - 10,000'
54
8.0 - 8.5
<20
200
8.7 - 9.0
<180
120KBTU - LP Gas
ALTITUDE
LOW FIRE
HIGH FIRE (CH & DHW)
Blower Speed
(b06)
CO2 (%)
CO (PPM)
Blower Speed
(b04 & b05)
CO2 (%)
CO (PPM)
0 - 2,000'
40
9.0 - 9.8
<20
185
10.2 - 10.7
<110
2,000' - 4,000'
43
9.0 - 9.8
<20
185
10.2 - 10.7
<110
4,000'-5,000'
46
9.0 - 9.4
<20
185
10.0 - 10.2
<180
5,000'-6,000'
49
9.0 - 9.4
<20
185
10.0 - 10.2
<180
6,000' - 7,000'
51
9.0 - 9.4
<20
185
10.0 - 10.2
<180
7,000' - 8,000'
52
9.0 - 9.4
<20
185
10.0 - 10.2
<200
8,000' - 9,000'
53
9.0 - 9.4
<20
185
10.0 - 10.2
<200
9,000' - 10,000'
54
9.0 - 9.4
<20
185
10.0 - 10.2
<200
28
High Altitude Blower Speeds