Aerco MODULEX EXT 321 - Page 72

MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
Page 72 of 146 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0087_0F
07/13/15 Phone: 800-526-0288 GF-143
Table 3-6: Modulex EXT Pressure, CO
2
and O
2
Level Calibration Tables
EXT 321
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) 316 (8.95) 50
Propane
11 (2.74) 10 11 1.3 3.1 30 84 0.27 (7) 18 (0.50) 122 (3.46) 50
HIGH ALTITUDE
Natural
7 (1.74) 8.5 10 3.1 5.8 35 100 0.27 (7) 45 (1.29) 316 (8.95) 50
Propane
11 (2.74) 10.8 10.8 1.3 3.1 30 73 0.27 (7) 18 (0.50) 109 (3.11) 50
EXT 481
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) 7.5 10 3.1 5.8 31 91 0.27 (7) 45 (1.29) 474 (13.43) 50
Propane
11 (2.74) 10 11 1.3 3.1 30 84 0.27 (7) 18 (0.50) 183 (5.19) 50
HIGH ALTITUDE
Natural
7 (1.74) 8.5 10 3.1 5.8 35 100 0.27 (7) 45 (1.29) 474 (13.43) 50
Propane
11 (2.74) 10.8 10.8 1.3 3.1 30 73 0.27 (7) 18 (0.50) 164 (4.67) 50
EXT 641
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) 631 (17.87) 50
Propane
11 (2.74) 10 11 1.3 3.1 30 84 0.27 (7) 18 (0.50) 243 (6.88) 50
HIGH ALTITUDE
Natural
7 (1.74) 8.5 10 3.1 5.8 35 100 0.27 (7) 45 (1.29) 631 (17.87) 50
Propane
11 (2.74) 10.8 10.8 1.3 3.1 30 73 0.27 (7) 18 (0.50) 219 (6.23) 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).