PEERLESS MI-e Series - Air Shutters; Check-Out Procedure

27
START-UP PROCEDURES
Burner inputs in Btu/hr for various meter timings and heat
values. (Table based on 2 cubic feet of gas through meter).
Burner inputs in kW for for various meter timings and
heat values. (Table based on 0.0566 cubic meter of gas
through meter).
E. AIR SHUTTERS
Air shutters are factory installed on burners of LP gas
modelsof MI-e-06 thru MI-e-09. Shutters may be adjusted
where needed to reduce noise and/or flame lifting and
fine tune ignition. Verify shutters are open a minimum of
1/2”. Do not close shutters to the point where flames turn
yellow. Yellow flames indicate incomplete combustion and
the formation of carbon monoxide. Yellow flames are not
the same as flame yellow tipping, which often occurs due
to dust in the air and does not indicate poor combustion.
Use care when working around boiler to avoid creating
air movements which will cause fluctuations in the flames,
making it difficult to determine correct shutter settings.
F. CHECK-OUT PROCEDURE
1. After starting the boiler, be certain all controls are
working properly. Check to be sure that the limit will
shut off the boiler in the event of excessive water
temperature. This can be done by lowering the limit
setting until the main burners shut down. When
proper limit function is confirmed, return the dial to
its previous setting.
2. To check operation of the ignition system safety
shut-off features:
• Refer to Figure 7.5 thru 7.8 Operating Instructions
and Figure 6.6 Intermittent Ignition System
Operating Sequence.
3. Low Water Cut-Off (if used) – Consult the
manufacturer’s instructions for the low water cut-off
operational check procedure.
4. Check the system to make sure there are no leaks
or overfilling problems which might cause excessive
make-up water to be added. Make-up water causes
liming in the boiler and brings in oxygen. Oxygen
can cause severe damage to the boiler though
oxygen corrosion pitting.
5. Check the expansion tank and automatic fill valve (if
used) to confirm that they are operating correctly. If
either of these components causes high pressure in
the system, the boiler relief valve will weep or open,
allowing fresh water to enter the system.
Time that
meter is
read (sec)
Heat Value of Gas
(MJ/cubic meter)
37.26 38.19 39.12
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
84.36
70.30
60.25
52.72
46.86
42.18
38.34
35.15
32.44
30.13
28.12
26.36
24.81
23.43
22.20
21.09
20.08
19.17
18.34
17.57
16.87
86.46
72.05
61.76
54.04
48.03
43.23
39.30
36.03
33.25
30.88
28.82
27.02
25.43
24.02
22.75
21.62
20.59
19.65
18.80
18.01
17.29
88.57
73.81
63.26
55.35
49.20
44.28
40.26
36.90
34.06
31.63
29.52
27.68
26.05
24.60
23.31
22.14
21.09
20.13
19.25
18.45
17.71
Table 7.1b: Meter Conversion – Natural Gas
(SI Metric Units)
Table 7.1a: Meter Conversion – Natural Gas
(U.S. Customary Units)
288000
240000
205714
180000
160000
144000
130909
120000
110769
102857
96000
90000
84706
80000
75789
72000
68571
65455
62609
60000
57600
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
295200
246000
210857
184500
164000
147600
134182
123000
113538
105429
98400
92250
86824
82000
77684
73800
70286
67091
64174
61500
59040
302400
252000
216000
189000
168000
151200
137455
126000
116308
108000
100800
94500
88941
84000
79579
75600
72000
68727
65739
63000
60480
Heat Value of Gas
(Btu/cubic foot)
1000 1025 1050
Time that
meter is
read (sec)
Figure 7.9: Air Shutters, LP Gas
MI-e-06 thru MI-e-09 Models
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