AERCO Modulex EXT 321 - 1123 User Manual
Page 73
MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
Table 3-6: Modulex EXT Pressure, CO
2
and O
2
Level Calibration Tables
EXT 802
Gas
Type
Supply
Pressure
Wc (kPa)
CO
2
Level
O
2
Level
Fan Speed
Ǿ Mixer
Injectors
Ǿ in.
(mm)
Min. Gas
Consumption
ft
3
/hr (m
3
/hr)
Max. Gas
Consumption
ft
3
/hr (m
3
/hr)
Start
Output
% IG
(%)
Min.
(%)
Max.
(%)
Min.
(%)
Max.
Min.
(FL)
Max.
(FH)
NOMINAL ALTITUDE
Natural
7 (1.74)
8.5
10
3.1
5.8
31
91
0.27 (7)
45 (1.29)
790 (22.39)
50
Propane
11 (2.74)
10
11
1.3
3.1
30
84
0.27 (7)
18 (0.50)
306 (8.65)
50
HIGH ALTITUDE
Natural
7 (1.74)
8.5
10
3.1
5.8
35
100
0.27 (7)
45 (1.29)
790 (22.39)
50
Propane
11 (2.74)
10.8 10.8
1.3
3.1
30
73
0.27 (7)
18 (0.50)
274 (7.79)
50
EXT 962
Gas
Type
Supply
Pressure
Wc (kPa)
CO
2
Level
O
2
Level
Fan Speed
Ǿ Mixer
Injectors
Ǿ in.
(mm)
Min. Gas
Consumption
ft
3
/hr (m
3
/hr)
Max. Gas
Consumption
ft
3
/hr (m
3
/hr)
Start
Output
% IG
(%)
Min.
(%)
Max.
(%)
Min.
(%)
Max.
Min.
(FL)
Max.
(FH)
NOMINAL ALTITUDE
Natural
7 (1.74)
8.5
10
3.1
5.8
31
91
0.27 (7)
45 (1.29)
948 (26.87)
50
Propane
11 (2.74)
10
11
1.3
3.1
30
84
0.27 (7)
18 (0.50)
367 (10.39)
50
HIGH ALTITUDE
Natural
7 (1.74)
8.5
10
3.1
5.8
35
100
0.27 (7)
45 (1.29)
948 (26.87)
50
Propane
11 (2.74)
10.8 10.8
1.3
3.1
30
73
0.27 (7)
18 (0.50)
329 (9.35)
50
EXT 1123
Gas
Type
Supply
Pressure
Wc (kPa)
CO
2
Level
O
2
Level
Fan Speed
Ǿ Mixer
Injectors
Ǿ in.
(mm)
Min. Gas
Consumption
ft
3
/hr (m
3
/hr)
Max. Gas
Consumption
ft
3
/hr (m
3
/hr)
Start
Output
% IG
(%)
Min.
(%)
Max.
(%)
Min.
(%)
Max.
Min.
(FL)
Max.
(FH)
NOMINAL ALTITUDE
Natural
7 (1.74)
8.5
10
3.1
5.8
31
91
0.27 (7)
45 (1.29)
1,106 (31.34)
50
Propane
11 (2.74)
10
11
1.3
3.1
30
84
0.27 (7)
18 (0.50)
428 (12.12)
50
HIGH ALTITUDE
Natural
7 (1.74)
8.5
10
3.1
5.8
35
100
0.27 (7)
45 (1.29)
1,106 (31.34)
50
Propane
11 (2.74)
10.8 10.8
1.3
3.1
30
73
0.27 (7)
18 (0.50)
384 (10.91)
50
NOTE
Check the O
2
levels often, especially at low flow rates.
For high altitude installations, consult document number C302.6 (MLX EXT Alt Derate).
OMM-0087_0E
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Page 73 of 148
GF-143
Phone: 800-526-0288
12/01/14