Introduction
1-4
750-204
Profire D/LND
metering pump, and/or gas volume butterfly valve are controlled through variable rate rod and lever linkages. The
modulating motor rotates 90º from low to high position. Flow rate through each component is adjusted by posi-
tioning the control rods on the levers and the angular position of levers on shafts. The lever on the modulating
motor shafts actuate the high fire position proving switch.
1.7 — Firing Head
Access to the firing head is provided by swinging open the impeller housing. First, disconnect the damper link-
age, release the housing latch, and swing the housing to the open position. An internal gas pilot is standard on
all burners. Pilot gas pressure is adjusted at the pilot pressure regulator.
FIGURE 1-2.
Firing Head Assembly
Summary of Contents for ProFire D Series
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Page 16: ...viii 750 204 Profire D LND...
Page 30: ...Installation 2 2 750 204 Profire D LND FIGURE 2 1 Recommended Scotch Marine Chamber Dimensions...
Page 39: ...750 204 Profire D LND 2 11 2 13 Installation Checklist FIGURE 2 7 Recommended Pipe Size...
Page 40: ...Installation 2 12 750 204 Profire D LND FIGURE 2 8 Recommended Pipe Size...
Page 42: ...Installation 2 14 750 204 Profire D LND FIGURE 2 10 Recommended Pipe Size...
Page 43: ...750 204 Profire D LND 2 15 2 13 Installation Checklist FIGURE 2 11 Recommended Pipe Size...
Page 44: ...Installation 2 16 750 204 Profire D LND FIGURE 2 12 Recommended Pipe Size...
Page 45: ...750 204 Profire D LND 2 17 2 13 Installation Checklist FIGURE 2 13 Recommended Pipe Size...
Page 46: ...Installation 2 18 750 204 Profire D LND FIGURE 2 14 Recommended Pipe Size...
Page 50: ...Installation 2 22 750 204 Profire D LND...
Page 69: ...750 204 Profire D LND 4 11 4 8 Firing Rate Controls FIGURE 4 7 Motor Rotations...
Page 70: ...Adjustments 4 12 750 204 Profire D LND...
Page 82: ...Maintenance 5 12 750 204 Profire D LND...
Page 88: ...Troubleshooting 6 6 750 204 Profire D LND...
Page 98: ...Flue Gas Recirculation 8 6 750 204 Profire D LND FIGURE 8 4 FGR Piping and Valve Sizes...
Page 100: ...Flue Gas Recirculation 8 8 750 204 Profire D LND FIGURE 8 6 20 PPM Head Assembly...
Page 106: ...Parts Lists and Drawings 9 6 750 204 Profire D LND 9 4 2 Blast Tube Assembly D378 420...
Page 108: ...Parts Lists and Drawings 9 8 750 204 Profire D LND 9 4 3 Blower Housing Assembly D42 175...
Page 110: ...Parts Lists and Drawings 9 10 750 204 Profire D LND 9 4 4 Blower Housing Assembly D210 336...
Page 112: ...Parts Lists and Drawings 9 12 750 204 Profire D LND 9 4 5 Blower Housing Assembly D378 420...
Page 114: ...Parts Lists and Drawings 9 14 750 204 Profire D LND 9 4 6 Compressor Set D42 145...
Page 116: ...Parts Lists and Drawings 9 16 750 204 Profire D LND 9 4 7 Compressor Set D175 336...
Page 118: ...Parts Lists and Drawings 9 18 750 204 Profire D LND 9 4 8 Compressor Set D378 420...
Page 120: ...Parts Lists and Drawings 9 20 750 204 Profire D LND 9 4 9 Control Package Fireye...
Page 122: ...Parts Lists and Drawings 9 22 750 204 Profire D LND 9 4 10 Control Package Honeywell...
Page 124: ...Parts Lists and Drawings 9 24 750 204 Profire D LND 9 4 11 Damper Assembly D42 420...
Page 126: ...Parts Lists and Drawings 9 26 750 204 Profire D LND 9 4 12 Damper Assembly LND42 420...
Page 128: ...Parts Lists and Drawings 9 28 750 204 Profire D LND 9 4 13 Drawer Assembly D42 63...
Page 130: ...Parts Lists and Drawings 9 30 750 204 Profire D LND 9 4 14 Drawer Assembly D84 145...
Page 132: ...Parts Lists and Drawings 9 32 750 204 Profire D LND 9 4 15 Drawer Assembly D175 336...
Page 134: ...Parts Lists and Drawings 9 34 750 204 Profire D LND 9 4 16 Drawer Assembly D378 420...
Page 136: ...Parts Lists and Drawings 9 36 750 204 Profire D LND 9 4 17 Firing Head Assembly D42 420...
Page 139: ...750 204 Profire D LND 9 39 9 4 Parts Lists and Drawings 9 4 19 Oil Heater D42 420...
Page 146: ...Parts Lists and Drawings 9 46 750 204 Profire D LND 9 4 22 Oil Metering Assembly D378 420...
Page 156: ...750 204 Profire D LND...
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