Beckett CG50 User Manual
Page 21
21
CG15, CG25, CG50 Burner Manual
Table 3 - Initial Burner Settings for Both Propane & Natural Gas
Furnace Pressure at High Fire
0” W.C.
0.25” W.C.
0.50” W.C.
1.00” W.C.
High Fire Rate MBH
Low Fire Rate MBH
Burner Model
Low Fire Gas Pressure, inch WC
Low Fire Damper Setting
High Fire Gas Pressure, inch WC
High Fire Damper Setting
Low Fire Gas Pressure, inch WC
Low Fire Damper Setting
High Fire Gas Pressure, inch WC
High Fire Damper Setting
Low Fire Gas Pressure, inch WC
Low Fire Damper Setting
High Fire Gas Pressure, inch WC
High Fire Damper Setting
Low Fire Gas Pressure, inch WC
Low Fire Damper Setting
High Fire Gas Pressure, inch WC
High Fire Damper Setting
CG15
800
468
CG15.1S
0.9
9
2.7
25
1.0
9
2.9
26
1.1
9
3.2
27
1.3
10
3.7
31
900
468
CG15.1S
0.9
9
3.4
32
1.0
9
3.7
34
1.1
9
3.9
37
1.2
10
4.4
43
950
548
CG15.2S
0.9
12
2.6
30
0.9
13
2.9
33
1.0
13
3.1
36
1.2
14
3.6
42
1050
548
CG15.2S
0.9
12
3.2
38
0.9
13
3.4
48
1.0
13
3.7
58
1.1
14
4.2
84
1150
641
CG15.3S
0.9
16
2.8
42
0.9
17
3.1
49
1.0
17
3.3
56
1.2
19
3.8
74
1250
641
CG15.3S
0.9
16
3.3
52
0.9
17
3.6
68
1.0
17
3.8
85
-
-
-
-
1300
750
CG15.4S
0.9
20
2.7
51
1.0
21
2.9
66
1.0
22
3.2
80
-
-
-
-
1400
750
CG15.4S
0.9
20
3.1
66
1.0
21
3.3
100
-
-
-
-
-
-
-
-
CG25
1350
669
CG25.1S
0.7
17
2.7
38
0.7
17
3.0
38
0.8
17
3.2
39
0.9
18
3.7
41
1450
669
CG25.1S
0.7
17
3.1
41
0.7
17
3.4
41
0.8
17
3.6
42
0.9
18
4.1
41
1550
774
CG25.2S
0.7
20
2.7
41
0.7
20
2.9
42
0.8
21
3.2
43
0.9
23
3.7
46
1700
774
CG25.2S
0.7
20
3.2
48
0.7
20
3.4
49
0.8
21
3.7
51
0.9
23
4.2
56
1800
896
CG25.3S
0.7
23
2.7
54
0.7
23
2.9
55
0.8
24
3.2
56
0.9
26
3.7
60
2000
896
CG25.3S
0.7
23
3.3
66
0.7
23
3.6
68
0.8
24
3.8
70
0.9
26
4.3
78
2100
1037
CG25.4S
0.7
27
2.8
66
0.7
27
3.1
71
0.8
28
3.3
76
0.9
30
3.8
90
2300
1037
CG25.4S
0.7
27
3.4
84
0.7
27
3.6
93
0.8
28
3.9
102
-
-
-
-
2400
1200
CG25.5S
0.6
30
2.5
85
0.7
30
2.8
100
0.8
31
3.0
115
-
-
-
-
2500
1200
CG25.5S
0.6
30
3.0
100
0.7
30
3.2
115
-
-
-
-
-
-
-
-
CG50
2000
888
CG50.1S
0.5
7
2.4
20
0.5
7
2.6
20
0.6
7
2.9
21
0.7
8
3.4
23
2200
888
CG50.1S
0.5
7
3.1
22
0.5
7
3.3
23
0.6
7
3.6
24
0.7
8
4.1
26
2400
1044
CG50.2S
0.5
8
2.5
23
0.5
8
2.8
24
0.6
9
3.0
25
0.7
10
3.5
28
2700
1044
CG50.2S
0.5
8
3.2
28
0.5
8
3.5
29
0.6
9
3.7
30
0.6
10
4.2
34
2900
1228
CG50.3S
0.5
9
2.6
27
0.5
9
2.9
28
0.6
10
3.1
29
0.6
11
3.6
33
3200
1228
CG50.3S
0.5
9
3.2
31
0.5
9
3.5
33
0.6
10
3.7
35
0.6
11
4.2
41
3400
1443
CG50.4S
0.5
11
2.7
33
0.5
11
2.9
35
0.6
12
3.2
37
0.7
13
3.7
42
3800
1443
CG50.4S
0.5
11
3.3
44
0.5
11
3.6
46
0.6
12
3.8
48
0.6
13
4.3
54
4000
1700
CG50.5S
0.5
13
2.7
50
0.5
13
3.0
52
0.6
14
3.2
54
0.7
17
3.7
60
4500
1700
CG50.5S
0.5
13
3.5
70
0.5
13
3.7
76
0.6
14
4.0
82
0.6
17
4.5
96
4800
1700
CG50.5S
0.5
13
4.0
98
0.5
13
4.2
115
-
-
-
-
-
-
-
-
Gas pressures are as measured at the manifold test connection.
Notice: The settings in this chart are for reference only. The actual conditions at the installation may require further
adjustment by the fully qualifi ed and experienced start-up technician.
Notice: The light-off rate must not be set below the low fi re recommendation. Lower rates will lengthen the time it takes
for gas to get to the burner head and may cause ignition failures.
Section: Start the Burner