4
FINAL ADJUSTMENTS
At this point a final adjustment should be made by the use of a COMBUSTION TEST KIT. After operating ten minutes
to warm up unit, a smoke tester should be used to take a smoke reading. Smoke test should read no greater than #1
(Shell Bacarach scale), and less than a #1 smoke is desired. At times, a new heating unit requires more time than this
to burn clean due to the oil film on the new heater unit surfaces. Recheck draft and take a CO
2
reading over the fire
and in the stack. If a large differential between CO
2
readings is noted, air leakage is the most common cause. CO
2
readings must be taken ahead of draft control, if used.The CO
2
measured in the stack should be at least 9% for oil
rates 1.00GPH or below, and be at least 10% for oil rates over 1.00GPH. Units should be started and stopped sev-
eral times to assure good operation. Open inspection door, turn off valve, and check out safety timing of combustion
control. Check operation of limit controls and thermostat. Check for oil leaks. NOTE: ALL NEW INSTALLATIONS
SHOULD BE REINSPECTED AFTER ONE OR TWO WEEKS OF NORMAL OPERATION.
SETTING COMBUSTION EFFICIENCY
(A) Selecting firing rate desired. (B) Install proper nozzle for appliance (see paragraph under “Nozzles” page 3). (C)
Install proper baffle and make gun adjustments per firing rate (see Figure 7, page 6). (D) Fire burner, adjust com-
bustion damper for yellow tips above combustion chamber. (E) Record CO
2
and smoke. If CO
2
is low, adjust gun set-
ting back 1/32” and repeat CO
2
and smoke test. Continue this adjustment until desired CO
2
and smoke is obtained.
Record stack temperature. (F) Check lighting with cold and hot chamber. (G) Lock all adjustment screws, combustion
damper indicator, and gun setting stop and adjusting plate.
FINAL CHECKS
Be sure all screws are locked, and the controls on heating unit are adjusted in accordance with the heater and con-
trol manufacturer’s instruction sheets.
EFFICIENCY CHART FOR NO. 2 FUEL OIL
NET STACK TEMPERATURE (DEGREES F˚)
15
14
13
12
11
10
9
8
7
6
5
4
300˚
350˚
400˚
450˚
500˚
550˚
600˚
650˚
700˚
750˚
800˚
850˚
900˚
87
1
⁄
2
86
1
⁄
2
85
1
⁄
4
84
1
⁄
4
83
1
⁄
4
82
81
79
3
⁄
4
78
3
⁄
4
77
1
⁄
2
76
1
⁄
2
75
1
⁄
2
74
1
⁄
4
87
1
⁄
2
86
1
⁄
4
85
84
83
81
3
⁄
4
80
3
⁄
4
79
1
⁄
4
78
1
⁄
2
77
1
⁄
4
76
75
73
3
⁄
4
87
1
⁄
4
86
84
3
⁄
4
82
3
⁄
4
82
3
⁄
4
81
1
⁄
2
80
1
⁄
4
79
78
76
3
⁄
4
75
1
⁄
2
74
1
⁄
2
73
87
85
3
⁄
4
84
1
⁄
2
83
1
⁄
2
82
1
⁄
2
81
1
⁄
4
80
78
3
⁄
4
77
1
⁄
2
76
1
⁄
4
75
1
⁄
4
74
72
1
⁄
4
86
3
⁄
4
85
1
⁄
2
84
1
⁄
4
83
1
⁄
4
82
80
3
⁄
4
79
1
⁄
2
78
1
⁄
4
77
75
3
⁄
4
74
1
⁄
2
73
1
⁄
2
71
3
⁄
4
86
1
⁄
2
85
1
⁄
4
84
83
1
⁄
4
81
1
⁄
2
80
1
⁄
4
79
77
3
⁄
4
76
1
⁄
2
75
1
⁄
4
73
3
⁄
4
72
3
⁄
4
71
86
1
⁄
4
85
83
3
⁄
4
82
1
⁄
2
81
1
⁄
4
79
3
⁄
4
78
1
⁄
2
77
1
⁄
4
75
3
⁄
4
74
1
⁄
2
73
71
1
⁄
2
70
1
⁄
4
86
84
3
⁄
4
83
1
⁄
2
82
80
3
⁄
4
79
1
⁄
4
78
76
1
⁄
2
75
1
⁄
4
73
3
⁄
4
72
1
⁄
4
70
3
⁄
4
69
1
⁄
2
85
3
⁄
4
84
1
⁄
2
83
81
1
⁄
2
80
1
⁄
4
78
3
⁄
4
77
1
⁄
4
75
3
⁄
4
74
1
⁄
2
73
71
1
⁄
2
70
68
1
⁄
2
85
1
⁄
2
84
82
1
⁄
2
81
79
1
⁄
2
78
76
1
⁄
2
75
73
3
⁄
4
72
70
1
⁄
2
69
67
1
⁄
2
85
83
1
⁄
2
82
80
1
⁄
2
78
3
⁄
4
77
1
⁄
4
75
3
⁄
4
74
1
⁄
4
72
3
⁄
4
71
69
1
⁄
2
68
66
1
⁄
4
84
1
⁄
2
83
81
1
⁄
2
79
3
⁄
4
78
76
1
⁄
2
75
73
1
⁄
4
71
3
⁄
4
70
68
1
⁄
4
66
3
⁄
4
65
84
82
1
⁄
4
80
3
⁄
4
79
77
1
⁄
4
75
3
⁄
4
74
72
1
⁄
4
70
3
⁄
4
68
3
⁄
4
67
65
1
⁄
4
63
1
⁄
2
83
1
⁄
2
81
3
⁄
4
80
78
1
⁄
4
76
1
⁄
2
74
3
⁄
4
73
71
1
⁄
4
69
1
⁄
2
67
1
⁄
2
65
1
⁄
2
63
3
⁄
4
62
83
81
79
1
⁄
4
77
1
⁄
2
75
1
⁄
2
73
3
⁄
4
71
3
⁄
4
70
68
66
64
62
60
82
1
⁄
4
80
1
⁄
4
78
1
⁄
2
76
1
⁄
2
74
1
⁄
2
72
1
⁄
2
70
1
⁄
2
68
1
⁄
2
66
1
⁄
2
64
1
⁄
4
62
1
⁄
4
60
58
81
1
⁄
2
79
1
⁄
2
77
1
⁄
4
75
1
⁄
4
73
1
⁄
4
71
69
67
64
3
⁄
4
62
1
⁄
2
60
1
⁄
4
57
3
⁄
4
55
1
⁄
2
80
3
⁄
4
78
1
⁄
2
76
1
⁄
4
74
71
3
⁄
4
69
1
⁄
2
67
1
⁄
4
65
62
3
⁄
4
60
1
⁄
4
57
3
⁄
4
55
1
⁄
2
53
79
3
⁄
4
77
1
⁄
4
75
72
1
⁄
2
70
67
3
⁄
4
65
1
⁄
4
62
3
⁄
4
60
1
⁄
4
57
1
⁄
2
55
1
⁄
2
52
1
⁄
2
50
78
1
⁄
2
76
73
1
⁄
2
71
68
65
1
⁄
2
63
60
1
⁄
4
57
1
⁄
2
54
1
⁄
2
51
3
⁄
4
49
46
1
⁄
2
77
1
⁄
4
74
1
⁄
2
71
3
⁄
4
69
65
3
⁄
4
63
60
57
54
51
48
45
1
⁄
2
42
1
⁄
2
75
1
⁄
2
72
1
⁄
2
69
66
1
⁄
4
63
60
56
3
⁄
4
53
1
⁄
2
50
1
⁄
4
47
43
1
⁄
2
40
1
⁄
4
36
3
⁄
4
73
1
⁄
4
69
3
⁄
4
66
1
⁄
4
62
3
⁄
4
59
1
⁄
4
55
3
⁄
4
52
48
1
⁄
2
45
41
1
⁄
4
37
1
⁄
2
33
3
⁄
4
30
Содержание HS
Страница 8: ...8 Notes...
Страница 9: ...9 Notes...
