Part number 550-100-305/0118
69
AquaBalance
TM
W
ALL
M
OUNT
GAS
-
FIRED
WATER
BOILER
—
Boiler Manual
155KBTU - 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'
39
8.0 - 9.0
<7
205
9.0 - 9.5
<120
2,000' - 4,000'
40
8.0 - 9.0
<7
205
9.0 - 9.5
<120
4,000'-5,000'
41
8.0 - 8.5
<10
205
8.7 - 9.0
<150
5,000'-6,000'
42
8.0 - 8.5
<10
205
8.7 - 9.0
<150
6,000' - 7,000'
43
8.0 - 8.5
<10
205
8.7 - 9.0
<150
7,000' - 8,000'
45
8.0 - 8.5
<10
205
8.7 - 9.0
<180
8,000' - 9,000'
46
8.0 - 8.5
<10
205
8.7 - 9.0
<180
9,000' - 10,000'
48
8.0 - 8.5
<10
205
8.7 - 9.0
<180
155KBTU - 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
<7
210
10.2 - 10.7
<120
2,000' - 4,000'
42
9.0 - 9.8
<7
210
10.2 - 10.7
<120
4,000'-5,000'
43
9.3 - 9.5
<10
210
9.7 - 9.9
<150
5,000'-6,000'
44
9.3 - 9.5
<10
210
9.7 - 9.9
<150
6,000' - 7,000'
45
9.3 - 9.5
<10
210
9.7 - 9.9
<150
7,000' - 8,000'
47
9.3 - 9.5
<10
210
9.7 - 9.9
<180
8,000' - 9,000'
48
9.3 - 9.5
<10
210
9.7 - 9.9
<180
9,000' - 10,000'
50
9.3 - 9.5
<10
210
9.7 - 9.9
<180
28
High Altitude Blower Speeds
Figure 96
HIGH Altitude Fan Speeds for WMB-155 boilers
Perform Boiler Manual start-up
Follow all instructions in the start-up section for boiler start-up after convert-
ing for High Altitude. Because the boiler has been changed,
you must verify cor-
rect operation, including checking combustion w ith test instruments both
at high fire and low fire as described in the Boiler Manual, pages 76, 77 & 78
.
Check the correct ignition sequence of the boiler after the conversion, as in page 86.
Failure to comply could result in severe personal injury, death or substantial property damage.
