ML193DF Gas Furnace Installation Manual - Lennox

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TABLE 7 Maximum Allowable Intake or Exhaust Vent Length in Feet *Size intake and exhaust pipe length separately. Values in table are for Intake OR Exhaust, not combined total. Both Intake and Exhaust must be same pipe size. Number Of 90° Elbows Used Standard Termination at Elevation 0 − 10,000 ft. 2" Pipe 2−1/2" Pipe 3" Pipe Model Model Model 045 070 090 110 045 070 090 110 045 070 090 110 1 61 46 24 100 80 43 127 127 108 108 2 56 41 19 95 75 38 122 122 103 103 3 51 36 14 90 70 33 117 117 98 98 4 46 31 85 65 28 112 112 93 93 5 41 26 80 60 23 107 107 88 88 6 36 21 n/a 75 55 18 n/a 102 102 83 83 7 31 16 n/a 70 50 13 97 97 78 78 8 26 11 65 45 92 92 73 73 9 21 60 40 n/a 87 87 68 68 n/a 10 16 55 35 82 82 63 63 Number Of 90° Elbows Used Concentric Termination Elevation 0 − 10,000 ft. 2" Pipe 2−1/2" Pipe 3" Pipe Model Model Model 045 070 090 110 045 070 090 110 045 070 090 110 1 53 38 22 90 70 39 111 111 104 104 2 48 33 17 85 65 34 106 106 99 99 3 43 28 12 80 60 29 101 101 94 94 4 38 23 5 33 18 70 50 19 91 91 84 84 6 28 13 n/a 65 45 14 n/a 86 86 79 79 7 23 n/a 75 55 24 96 96 89 89 60 40 81 81 74 74 8 18 55 35 76 76 69 69 9 13 n/a 50 30 n/a 71 71 64 64 10 n/a 45 25 66 66 59 59 Page 16
TYPICAL EXHAUST PIPE CONNECTIONS Pipe size determined in table 7. 2” 2” 2” or 2” 2” 3” TRANSITION *2” DO NOT transition from smaller to larger pipe size in horizontal runs of exhaust pipe. INTAKE EXHAUST TOP VIEW * When transitioning up in pipe size, use the shortest length of 2” PVC pipe possible. NOTE − Exhaust pipe and intake pipe must be the same diameter. FIGURE 20 TYPICAL INTAKE PIPE CONNECTIONS Pipe size determined in table 7. 2” 2” 2” or 2” 2” TRANSITION 3” TRANSITION *2” *2” 3” *2” INTAKE EXHAUST TOP VIEW * When transitioning up in pipe size, use the shortest length of 2” PVC pipe possible. NOTE − Intake pipe and exhaust pipe must be the same diameter. FIGURE 21 Page 17
Page 1 and 2: 2010 Lennox Industries Inc. Dallas,
Page 3 and 4: ML193DF Parts Arrangement CONTROL B
Page 5 and 6: NOTE − Furnace must be adjusted t
Page 7 and 8: All gas-fired appliances require ai
Page 9 and 10: ML193DF09048C BLOWER MOTOR RIGID LE
Page 11 and 12: TABLE 2 COMBUSTIBLE FLOORING BASE O
Page 13 and 14: IMPORTANT ML193DF exhaust and intak
Page 15: 2 − When furnace is installed in
Page 19 and 20: VENT TERMINATION CLEARANCES FOR NON
Page 21 and 22: Details of Intake and Exhaust Pipin
Page 23 and 24: FIELD SUPPLIED WALL TERMINATION OR
Page 25 and 26: If intake and exhause pipe is less
Page 27 and 28: UNCONDITIONED SPACE 6" (152mm) Max
Page 29 and 30: OPTIONAL Condensate Drain Connectio
Page 31 and 32: MANUAL MAIN SHUT−OFF VALVE (With
Page 33 and 34: Left side INTERIOR MAKE−UP BOX (F
Page 35 and 36: TYPICAL ML193DF WIRING DIAGRAM FIGU
Page 37 and 38: Placing the furnace into operation:
Page 39 and 40: TABLE 14 Conversion Kit and Pressur
Page 41 and 42: BLOWER DATA ML193DF045P36B PERFORMA
Page 43 and 44: 19 − Reinstall heat exchanger int
Page 45 and 46: Troubleshooting: Heating Sequence o
Page 47 and 48: Troubleshooting: Cooling Sequence o
Page 49 and 50: Repair Parts List The following rep
Page 51 and 52: 1 UNIT OPERATION HEATING MODE GAS M

ML193DF Gas Furnace Installation Manual - Lennox

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