Watts Aerco Modulex MLX EXT 1530 - Page 68

Modulex EXT Commercial Series Boilers User Manual
CHAPTER 4: Installation Instructions
Page 68 of 144 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0095_0H
09/15/2017 Phone: 800-526-0288 GF-139
TABLE 4-6: EXT Pressure, CO
2
and O
2
Level Calibration Tables
EXT 1530 /1500
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 26 84 0.35 (9) 79.8 (2.26) 1466 (41.5) 50
Propane
11 (2.74) 10 11 1.3 3.1 26 82 0.35 (9) 32.4 (0.92) 595 (16.8) 50
HIGH ALTITUDE
Natural
7 (1.74) 8.5 10 3.1 5.8 28 100 0.35 (9) 79.8 (2.26) 1411 (39.9) 50
Propane
11 (2.74) 10.8 10.8 1.3 3.1 26 76 0.35 (9) 32.4 (0.92) 536 (19.2) 50
EXT 1912
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 26 84 0.35 (9) 79.8 (2.26) 1832 (51.8) 50
Propane
11 (2.74) 10 11 1.3 3.1 26 82 0.35 (9) 32.4 (0.92) 744 (21.1) 50
HIGH ALTITUDE
Natural
7 (1.74) 8.5 10 3.1 5.8 28 100 0.35 (9) 79.8 (2.26) 1832(51.8) 50
Propane
11 (2.74) 10.2 10.6 1.3 3.1 26 76 0.35 (9) 32.4 (0.92) 670 (19.0) 50
EXT 2295 / 2300
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 26 84 0.35 (9) 79.8 (2.26) 2199 (62.2) 50
Propane
11 (2.74) 10 11 1.3 3.1 26 82 0.35 (9) 32.4 (0.92) 893 (25.3) 50
HIGH ALTITUDE
Natural
7 (1.74) 8.5 10 3.1 5.8 28 100 0.35 (9) 79.8 (2.26) 2199 (62.2) 50
Propane
11 (2.74) 10.2 10.6 1.3 3.1 26 76 0.35 (9) 32.4 (0.92) 804 (22.8) 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).