Setting Combustion Efficiency; Final Checks - Wayne HS Manual

3. Recheck draft and take a CO
and in the stack. If a large differential between CO
readings is noted, air leakage is the most common
cause. CO readings must be taken ahead of draft
2
regulator, if used. The CO
should be at least 9% for oil rates of 1.00 GPH or
below, and at least 10% for oil rates over 1.00 GPH.
4. Units should be started and stopped several times to
ensure good operation.
5. Open the inspection door, turn off the valve, and
check out the safety timing of the oil primary.
6. Check the operation of limit controls and thermostat.
7. Check for oil leaks.
weeks of normal operation.
300° 350°
15 87½ 86½
87½ 86¼
14 87¼ 86
87 85¾
13 86¾ 85½
86½ 85¼
12 86¼ 85
86 84¾
11 85¾ 84½
85½ 84
10 85 83½
84½ 83
9 84 82¼
83½ 81¾
8 83 81
82¼ 80¼
7 81½ 79½
80¾ 78½
6 79¾ 77¼
78½ 76
5 77¼ 74½
75½ 72½
4 73¼ 69¾
reading over the fire
2
measured in the stack
2
All new installations should be
re-inspected after one or two
Table 3: Efficiency Chart For No. 2 Fuel Oil
NET STACK TEMPERATURE (°F)
400° 450° 500°
85¼ 84¼ 83¼
85 84 83
84¾ 82¾ 82¾
84½ 83½ 82½
84¼ 83¼ 82
84 83¼ 81½
83¾ 82½ 81¼
83½ 82 80¾
83 81½ 80¼
82½ 81 79½
82 80½ 78¾
81½ 79¾ 78
80¾ 79 77¼
80 78¼ 76½
79¼ 77½ 75½
78½ 76½ 74½
77¼ 75¼ 73¼
76¼ 74 71¾
75 72½ 70
73½ 71 68
71¾ 69 65¾
69 66¼ 63
66¼ 62¾ 59¼

SETTING COMBUSTION EFFICIENCY

1. Selecting firing rate desired.
2
2. Install proper nozzle for appliance (see page 9 under
"Nozzle Selection").
3. Install proper baffle and make gun adjustments per
firing rate (see Table 2 and Figure 12, page 7).
4. Fire burner, adjust combustion damper for yellow tips
above combustion chamber.
5. Record CO
setting back 1/32" and repeat CO
Continue this adjustment until optimal CO
is obtained. Record stack temperature.
6. Check lighting with cold and hot chamber.
7. 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 the
heating unit are adjusted in accordance with the
manufacturer's instruction sheets.
550° 600° 650°
82 81 79¾
81¾ 80¾ 79¼
81½ 80¼ 79
81¼ 80 78¾
80¾ 79½ 78¼
80¼ 79 77¾
79¾ 78½ 77¼
79¼ 78 76½
78¾ 77¼ 75¾
78 76½ 75
77¼ 75¾ 74¼
76½ 75 73¼
75¾ 74 72¼
74¾ 73 71¼
73¾ 71¾ 70
72½ 70½ 68½
71 69 67
69½ 67¼ 65
67¾ 65¼ 62¾
65½ 63 60¼
63 60 57
60 56¾ 53½
55¾ 52 48½
8
and smoke. If CO is low, adjust gun
2 2
and smoke test.
2
700° 750° 800°
78¾ 77½ 76½
78½ 77¼ 76
78 76¾ 75½
77½ 76¼ 75¼
77 75¾ 74½
76½ 75¼ 73¾
75¾ 74½ 73
75¼ 73¾ 72¼
74½ 73 71½
73¾ 72 70½
72¾ 71 69½
71¾ 70 68¼
70¾ 68¾ 67
69½ 67½ 65½
68 66 64
66½ 64¼ 62¼
64¾ 62½ 60¼
62¾ 60¼ 57¾
60¼ 57½ 55½
57½ 54½ 51¾
54 51 48
50¼ 47 43½
45 41¼ 37½
and smoke
2
850° 900°
75½ 74¼
75 73¾
74½ 73
74 72¼
73½ 71¾
72¾ 71
71½ 70¼
70¾ 69½
70 68½
69 67½
68 66¼
66¾ 65
65¼ 63½
63¾ 62
62 60
60 58
57¾ 55½
55½ 53
52½ 50
49 46½
45½ 42½
40¼ 36¾
33¾ 30