IPT Installation Manual

15
9-511.4
GAS
SUPPLY LINE
GAS
SUPPLY LINE
GROUND
JOINT
UNION
W/ BRASS
SEAT
MANUAL GAS
SHUT-OFF VALVE
3"
MIN.
SEDIMENT
TRAP
PLUGGED
1/8" NPT TEST
GAGE CONNECTION
TO
CONTROLS
INSTALLATION
Figure 15.1 - Recommended Sediment Trap/
Manual Shut-Off Valve Installation
2"
Burner Box
(Side View)
Field Supplied Gas Piping
Note: The gas supply nipple
must be parallel to the
heater movement.
12"
Alternate Supply Locations
should be maintained on a
12" radius arc
Burner Box
(End View)
Figure 15.2 - Recommended Installation of Flexible
Gas Connector
Gas Pipe Capacities (Up to 14" W.C. Gas Pressure through Schedule 40 Pipe)
Cubic Feet per Hour with Pressure Drop of 0.3" W.C.
Natural Gas - Specific Gravity - 0.60
Propane Gas - Specific Gravity - 1.50
Length Pipe Diameter
Of Pipe 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"
(feet) Natural Propane Natural Propane Natural Propane Natural Propane Natural Propane Natural Propane
10 132 83 278 175 520 328 1050 662 1600 1008 3050 1922
20 92 58 190 120 350 221 730 460 1100 693 2100 1323
30 73 46 152 96 285 180 590 372 890 561 1650 1040
40 63 40 130 82 245 154 500 315 760 479 1450 914
50 56 35 115 72 215 135 440 277 670 422 1270 800
60 50 32 105 66 195 123 400 252 610 384 1150 725
70 46 29 96 60 180 113 370 233 560 353 1050 662
80 43 27 90 57 170 107 350 221 530 334 990 624
90 40 25 84 53 160 101 320 202 490 309 930 586
100 38 24 79 50 150 95 305 192 460 290 870 548
125 34 21 72 45 130 82 275 173 410 258 780 491
150 31 20 64 40 120 76 250 158 380 239 710 447
Table 15.2 - Gas Pipe Capacities
Input MBH
Gas Type
Natural Propane
50 0.03 0.02
60 0.04 0.02
75 0.05 0.03
100 0.08 0.04
150 0.14 0.07
175 0.18 0.09
200 0.23 0.11
Table 15.1 - 3/4" x 36" Flexible GasConnector Pressure
Drop ("W.C.)
Warning:Connectormustbeinstalledinaconguration.Use
only a 36" long connector of 3/4" nominal ID with this heater. This is
offeredasafactorysupplied,eldinstalledaccessory.
7. When pressure/leak testing pressures above
14" W.C. (1/2 psi), close the field installed shut-off valve,
disconnect the unit, and its combination gas control from the
gas supply line, and plug the supply line before testing. When
testing pressures 14" W.C. (1/2 psi) or below, close the
manual shut-off valve on the unit before testing.
8. If the gas valve was rotated to change control access side,
leak test fittings