Independence Installation, Operating, and Service Instructions

43
103538-08 - 3/18
Table 10: Input Rate
h. Remove drain valve. Thoroughly wash boiler
water passages with high pressure spray through
drain valve tapping.
i. Reinstall drain valve in Tapping "F". See
Figures 1 and 2.
3. Second Boil-out for Stubborn Cases. If all oil and
grease is not removed a second boilout using surface
blow-off is necessary.
a. Run 1 NPT pipe from Surface Blow-Off Tapping
"L" to open drain. Do not install shut-off valve or
other restriction. See Figure 2.
b. Fill boiler to top of gauge glass.
c. Remove safety valve.
d. Pour recommended boil-out compound into
boiler through safety valve opening.
e. Reinstall safety valve in Tapping "E" with
spindle in vertical position. See Figures 1 and 2.
f. Follow Lighting or Operating Instructions to
place boiler in operation. See Figure 38, 39 or
40. Boil water for approximately 5 hours
without producing steam.
g. Open boiler ll shut-off valve to produce steady
trickle of water from surface blow-off pipe.
Continue boil-out for several hours until surface
blow-off water runs clear.
h. Follow instructions TO TURN OFF GAS TO
APPLIANCE. See Figure 38, 39 or 40. Drain
boiler and system piping.
i. Remove drain valve. Thoroughly wash boiler
water passages with high pressure spray through
drain valve tapping.
j. Fill boiler to normal waterline. If water in gauge
glass is not clear, repeat procedure starting at
step b.
k. Remove surface blow-off piping. Install 1 NPT
plug in Tapping "L". See Figure 2.
4. Add Boiler Water Treatment.
a. Remove safety valve.
b. Pour recommended compound into boiler
through safety valve opening.
c. Reinstall safety valve in Tapping "E" with
spindle in vertical position. See Figures 1 and 2.
d. Follow Lighting or Operating Instructions to
place boiler in operation. See Figure 38, 39 or
40.
e. Boil water or heat water to 180°F.
f. Measure boiler water alkalinity. pH should be
between 7 and 11. Add recommended water
treatment chemicals, if necessary, to bring the pH
within the specied range.
5. If unsteady water line, foaming or priming persist:
a. Follow Lighting or Operating Instructions to
place boiler in operation. See Figure 38, 39 or
40.
b. Install gate valve (shut-off valve) in Hartford
Loop. Install drain valves in return main and at
boiler. See Figure 21.
c. Connect hoses from drain valves to oor drain.
Close gate valve in Hartford Loop. Open drain
valve in return main.
d. Fill boiler to normal water line. Follow Lighting
or Operating Instructions to place boiler in
operation. See Figure 38, 39 or 40.
e. Operate boiler for at least 30 minutes after
condensate begins to run hot. Follow instructions
TO TURN OFF GAS TO APPLIANCE. See
Figure 38, 39 or 40.
Seconds
for One
Revolution
Size of Gas Meter Dial
One-Half
Cu. Ft.
One
Cu. Ft.
Two
Cu. Ft.
Five
Cu. Ft.
30 60 120 240 600
32 56 113 225 563
34 53 106 212 529
36 50 100 200 500
38 47 95 189 474
40 45 90 180 450
42 43 86 172 430
44 41 82 164 410
46 39 78 157 391
48 37 75 150 375
50 36 72 144 360
52 35 69 138 346
54 33 67 133 333
56 32 64 129 321
58 31 62 124 310
60 30 60 120 300
62 29 58 116 290
64 29 56 112 281
66 29 54 109 273
68 28 53 106 265
70 26 51 103 257
72 25 50 100 250
74 24 48 97 243
76 24 47 95 237
78 23 46 92 231
80 22 45 90 225
IX. System Start-up (continued)