# 7.3-i 

# APPENDIX 7.3. DETERMINATION OF BASIC FURNACE MODELS

LIST OF TABLES

Table 7.3A.1 Models and Manufacturers of Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-3

Table 7.3A.2 Values of Input Capacity (k Btu/h) for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-4

Table 7.3A.3 Values of Output (kBt u/h) Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-5

Table 7.3A.4 Values of Maximum CFM @ 0.5 in w.c. for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-6

Table 7.3A.5 Values of Low CFM @ 0.5 in w.c. for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-7

Table 7.3A.6 Values of Blower Size (diam X width) for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-8

Table 7.3A.7 Values of Motor Size (HP) for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-9

Table 7.3A.8 Number of Speed Taps for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-10

Table 7.3A.9 Values of Supply Air Outlet Area (sq.ft.) for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-11

Table 7.3A.10 Values of AFUE for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-12

Table 7.3A.11 Values for Eae (kWh/y) for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-13

Table 7.3A.12 Values of PE (W) for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-14

Table 7.3A.13 Values of On-Delay (secs) for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-15

Table 7.3A.14 Values of Off-Delay Time (secs) for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-16

Table 7.3A.15 Values of Pre-Purge Time (secs) for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-17

Table 7.3A.16 Values of Post-Purge Time (secs) for Non-Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-18

Table 7.3B.1 Models and Manufacturers of Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-19

Table 7.3B.2 Values of Input Capacity (kBtu/h) for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-20

Table 7.3B.3 Values of Output (kBtu/h) Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-21

Table 7.3B.4 Values of Maximum CFM @ 0.5 in w.c. for Condensing Basic Model

# 7.3-ii 

# Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-22

Table 7.3B.5 Values of Low CFM @ 0.5 in w.c. for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-23

Table 7.3B.6 Values of Blower Size (dia m X width) for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-24

Table 7.3B.7 Values of Motor Size (HP) for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-25

Table 7.3B.8 Number of Speed Taps for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-26

Table 7.3B.9 Values of Supply Air Outlet Area (sq.ft.) for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-27

Table 7.3B.10 Values of AFUE for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-28

Table 7.3B.11 Values for Eae (kWh/y) for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-29

Table 7.3B.12 Values of PE (W) for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-30

Table 7.3B.13 Values of On-Delay (secs) for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-31

Table 7.3B.14 Values of Off-Delay Time (secs) for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-32

Table 7.3B.15 Values of Pre-Purge Time (secs) for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-33

Table 7.3B.16 Values of Post-Purge Time (secs) for Condensing Basic Model

Non-Weatherized Gas Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3-34

LIST OF FIGURES

Figure 7.3.1 Number of Non-Weatherized Furnace Models by Input Capacity

........ 7.3-2

# 7.3-1 

# APPENDIX 7.3. DETERMINATION OF BASIC FURNACE MODELS

To determine basic furnace models, DOE selected 26 airflow/capacity bins. The

Department selected the bins by looking at “comm on” (popular) sizes of input capacity in the

Gas Appliances Manufacturers Association (GAMA) certified efficiency ratings database for the

period April 2002 to October 2002. 1 

# The Department assumed that the frequency of models of a

particular size indicated how common or popular the size was. Product literature and furnace

manufacturer web sites helped in further determining series of furnaces considered to be “basic

models.”

To determine the characteristics of basic furnace models of non-condensing

non-weatherized gas furnaces, the Department examined single-stage, natural gas furnaces that

are not intended for mobile homes. In addition, DOE selected upflow and horizontal models

since they represent the majority of models and of ten have similar or identical specifications and

efficiency values to downflow models from the same manufacturer. (Of the 8,342 models in the

GAMA directory, 77 percent were either horizont al or upflow.) Similarly, only non-condensing

furnaces at or above 80 percent AFUE were picked since they represent the majority of

non-weatherized gas furnaces. To further refine the basic model selection criteria, DOE used

product literature to select models without variable speed blower motors. Manufacturer web

sites provided information describing their furnaces. This information further helped distinguish

between the different series of models.

The Department used a similar process to select basic models for condensing

non-weatherized gas furnaces. Model characteristics included single-stage furnaces not intended

for mobile homes. Since many condensing gas furnaces series are multi-position (upflow,

horizontal, and downflow), DOE included upflo w, horizontal, and downflow models. The

Department gleaned this information from the GAMA database. To further refine the selection

criteria, DOE used product literature to select models without variable speed blower motors.

The Department selected similar models that had the same capacity and nominal airflow

(cfm). Most of the furnaces fit into four maximum nominal airflow sizes: 800 cfm (two-ton),

1200 cfm (three-ton), 1600 cfm (four-ton), and 2000 cfm (five-ton).

In terms of input capacity, most models fit into 12 input capacity bins. Some models did

not exactly match the bins, but had similar enough values to be considered in the same bin. For

example, 40 KBtu/h and 45 KBtu/h models are grouped together into a single 45 KBtu/h bin.

The 4 nominal airflow sizes and 12 input capacities were combined into bins. Only 26 of these

bins are used in the analysis. Some combinations of nominal airflow size and input capacity are

not manufactured.

Each of the 26 bins has at least two mode ls, with the exception of two-ton, 50 KBtu/h

non-condensing bin, 45 KBtu/h, two-ton conde nsing bin, and four-ton 115, 120, and 125 KBtu/h

condensing bins. Finally, the 150 KBtu/h, five-ton bin was not selected, since there are very few

condensing models are over 125 KBtu/h and none that are close to 150 KBtu/h.

# 7.3-2 

# The 12 different input capacities from 45 KBtu/h to 140 KBtu/h give a good range to

match different home sizes.

Figure 7.3.1 shows the number of models by input capacity for non-weatherized gas

furnaces.

0 500 1000 1500 2000 2500 30002030405060708090100110120130140150160



# Input Capacity (kBtu/h)Count



# Figure 7.3.1 Number of Non-Weatherized Furnace Models by Input

Capacity

Tables 7.3A.1 through 7.3B.16 contain tables of model numbers and specifications for

the non-condensing and condensing basic model non-weatherized gas furnaces the Department

used for the LCC analysis.Table 7.3A.1 Models and Manufacturers of Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 140C - 58RAV050-08 L - G23Q2-50-** L - 80UHG2-60A-**C - 58WAV045-08 TR - TUD060C924K*L - 80UHG2-45A-** TX - ABA060NH2RL - G40UH-24A-045-*N - G6RA045*-08AN - L1RA045*08ATR - TUD040C924K*TX - ABA040NH2RAM - GUID045**30 AR - G1N80AT050D12A L - 80UHG3-60A-** AM - GUID070**30 AR - G1N80AT075D12A TR - TUD080C936K* AM - GUID090**30 L - G23Q3-100-**C - 58RAV050-12 C - 58EFB050-12 N - G6RA060*-12A C - 58RAV070-12 C - 58EFB075-12 TX - ABA080NH3R C - 58RAV095-12 G - GMP100-3C - 58WAV045-12 D - MPGA050B3* TR - TUD060C936K* C - 58WAV070-12 D - MPGA075B3* Y - P4HUA12N06401 G - GMT090-3 R - RGPJ-10NAMERG - GMP050-3 I - NTG3050FB*** TX - ABA060NH3R G - GMT070-3 G - GMP075-3 L - G40UH-36B-090-* TR - TUD100C936K*G - GMT045-3 L - G23Q3-50-** Y - P4HUA12N04801 L - G40UH-36A-070-* I - NTG3075FB*** N - L1RA090*12B TX - ABA100NH3RTR - TUD040C930K* N - L1RA054*12A N - G6RA072*-12A L - 80UHG3-75A-** Y - P4HUB12N08001TX - ABA040NH3R R - RGPJ-05NAUER N - L1RA072*12A L - G23Q2/3-75-**Y - P4HUA12N03201 Y - G8C05012MUB11* R - RGPJ-07NAUERY - G8C07512MUB11*AM - GUID070**40 AR - G1N80AT075D16B TR - TUD080C948K* C - 58RAV095-16 C - 58EFB100-16 Y - P4HUC16N09201 L - 80UHG3/4-120A-** L - G23Q3/4-125-**G - GMT070-4 C - 58EFB075-16 TX - ABA080NH4R C - 58WAV091-16 D - MPGA100B4* C - 58RAV115-16 N - G6RA120*-16B C - 58WAV136-16N - G6RA072*-16B D - MPGA075B4* Y - P4HUB16N06401 G - GMT090-4 G - GMP100-4 C - 58WAV111-16 TX - ABA120NH4R G - GMP125-4N - L1RA072*16B G - GMP075-4 L - G40UH-48B-090-* I - NTG3100GF*** L - G40UH-48C-110-* L - G40UH-48C-135-*I - NTG3075HF*** N - L1RA090*16B L - 80UHG3/4-100A-** N - L1RA108*16B R - RGPJ-12NARGRL - 80UHG4-75A-** L - G23Q3/4-100-**R - RGPJ-07NAMGR R - RGPJ-10NBRGRY - G8C07516MUC11* TR - TUD100C948K*TX - ABA100NH4RY - G8C10016MUC11*Y - P4HUB16N08001AM - GUID090**50 AR - G1N80AT100D20C AM - GUIC115**50 L - 80UHG4/5-120A-** AR - G1N80AT125D20D AM - GUIC140**50G - GMT090-5 C - 58EFB100-20 C - 58RAV115-20 N - G6RA120*-20C C - 58EFB125-20 C - 58RAV135-20D - MPGA100B5* C - 58WAV111-20 TR - TUD120C960K* C - 58WAV136-20 G - GMP150-5G - GMP100-5 G - GMT115-5 TX - ABA120NH5R D - MPGA125B5* G - GMT140-5I - NTG3100KF*** L - G40UH-60C-110-* G - GMP125-5 N - G6RA144*-20CL - 80UHG4/5-100A-** N - L1RA108*20C I - NTG3125KJ*** TR - TUD140C960K*L - G23Q4/5-100-** Y - P4HUC20N09201 L - G40UH-60D-135-* TR - TUD140C960K*N - G6RA096*-20C N - L1RA126*20C TX - ABA140NH5RR - RGPJ-10NBRJR R - RGPJ-12NARJRTR - TUD100C960K* Y - G8C12520MUD11*TX - ABA100NH5R Y - P4HUD20N10401Y - G8C10020MUD11*Y - P4HUC20N08001Manufacturer Key:AM = Amana D = Ducane L = Lennox Industries TR = TraneAR = Armstrong G = Goodman N = Nordyne TX = Texas FurnaceC = Carrier Corporation I = International Comfort Products R = Rheem Y = Yorksizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-3Table 7.3A.2 Values of Input Capacity (kBtu/h) for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14046506044 6045 60444545404046 50 60 69 75 80 92 10046 50 60 69 75 80 92 10044 50 60 66 75 80 90 10045 50 60 70 75 88 10045 50 57 66 75 90 1004054 72 7510040 50 72 7540 50757569 75 80 92 100 115 120 12570 75 80 88 100 115 120 13272 75.1 80 90 100 110 120 12572 75 88 100 110 13275 90 100 108 12575100751007510010010010092 100 115 120 125 13890 100 115 120 125 135100 110 120 132 140100 115 120 125 135100 110 125 144100 108 125 140100 115 132 14096126 140100 125100 125100 130100100sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-4Table 7.3A.3 Values of Output Capacity (kBtu/h) for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14037404835 4736 49353636323337 40 48 55 60 63 74 8037 40 48 56 61 65 74 8035 40 47 53 61 64 72 8036 40 49 56 60 71 7936 40 46 53 59 72 813242 58 608033 40 57 6132 40616055 60 64 75 81 92 96 10056 61 65 71 81 93 98 10759 61 64 72 80 89 98 10058 60 71 80 87 10660 72 80 86 10160806181607981808074 80 92 96 100 11172 81 93 97 101 11081 89 96 107 11280 92 98 101 10880 88 100 11680 86 99 11181 92 107 11178101 1148110179100811058080sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-5Table 7.3A.4 Values of Maximum CFM @ 0.5 in.w.c. for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 1408951030990880 901990 8509108708709108051200 1165 1210 1290 1143 1296 1380 13301160 1200 1210 1195 1280 1230 1255 14501250 1235 1236 1195 1235 1330 1400 12551260 1163 1260 1165 1350 1300 13631438 1320 1330 1215 1163 1280 125010921110 1210 1210 14651265 1165 1210 13001330 1211, 1220 11401211, 12201450 1540 1710 1580 1615 1780 1600 16051518 1625 1645 1740 1845 1595 1580 16201660 1845 1795 1532 1650 1575 1655 17001610 1600 1600 1502 1665 16401599 1600 1600 1600 18851600 16351585 18451608, 1569 166915801608, 156917701975 2042 1985 2260 1971 20501875 1990 1950 2090 2015 20552270 2225, 2170, 2365 2005 2025, 1980, 2195 23802020 1988 1965 2270 21212005 1980, 2115 2120 20202260 1930 1991 22162195 2130, 2200 1930, 2120 22162150 1930 22352060 21152001 2013, 17331950 2120, 21952013, 17332130, 2200sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-6Table 7.3A.5 Values of Low CFM @ 0.5 in.w.c. for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 140560645540605 505540 560610570690507550575 713 720 700 677 869 690 910870 805 730 890 1040 620 830 920875 750 848 905 750 620 628 960785 608 600 605 785 830 864669 775 620 705 608 930 650789720 730 720 920615 585 730 735620 811, 845 880811, 845975 986 758 1075 1220 1265 840 10651006 1320 990 1210 1315 1150 1120 11801140 1315 1205 1113 1350 1180 1040 13501410 1250 1195 704 1120 10501318 1340 840 1340 1215840 11001135 11951052, 1111 11649901052, 111112851140 892 1210 1410 907 13401338 1330 1400 1260 1395 14301270 1495 1375 1450 1850960 1258 1110 1270 14291167 1605, 1610 1000 12501410 1580 1168 14111390 1585, 1630 1645, 1665 14111300 1580 12001510 15601367 1407, 12241135 1575, 16301407, 12241585, 1630sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-7Table 7.3A.6 Values of Blower Size (diam X width) for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14010 x 610 x 79 x 710 x 6 10 x 69 x 7 10 x 410 x 710 x 610 x 610 x 610 x 49 x 8 10 x 6 10 x 7 9 x 8 10 x 6 10 x 7 10 x 8 10 x 810 x 6 10 x 8 10 x 6 10 x 6 10 x 8 10 x 6 10 x 7 10 x 810 x 6 10 x 6 10 x 7 10 x 6 10 x 6 10 x 7 10 x 8 11 x 710 x 6 10 x 8 10 x 6 10 x 6 10 x 6 10 x 8 10 x 710 x 6 10 x 8 10 x 7 10 x 8 10 x 8 9 x 9 10 x 610 x 610 x 6 10 x 6 10 x 7 10 x 810 x 6 11 x 6 10 x 6 10 x 810 x 7 10 x 8 11 x 610 x 810 x 6 10 x 8 10 x 8 10 x 8 10 x 9 10 x 10 12 x 8 10 x 1010 x 8 12 x 8 10 x 8 10 x 8 12 x 9 10 x 8 10 x 10 10 x 810 x 10 12 x 9 11 x 8 10 x 8 10 x 8 10 x 8 10 x 8 10 x 1010 x 10 10 x 8 10 x 10 10 x 10 10 x 10 10 x 1010 x 10 10 x 10 12 x 8 11 x 10 11 x 1012 x 8 10 x 811 x 7 11 x 1010 x 10 10 x 810 x 810 x 1010 x 1010 x 8 12 x 10 10 x 9 12 x 9 12 x 10 10 x 910 x 10 12 x 9 11 x 10 11 x 10 12 x 12 11 x 1012 x 12 11 x 10 11 x 10 11 x 10 10 x 6 (Dual)11 x 10 10 x 10 10 x 4 (Dual) 12 x 12 11 x 1011 x 10 11-1/2 x 10 11 x 10 11 x 1012 x 9 11 x 10 11 x 10 11 x 1011.5 x 9 11 x 10 11-1/2 x 10 11 x 1011 x 10 11 x 10 10 x 6 (Dual)11 x 10 11 x 1011 x 10 10 x 6 (Dual)10 x 4 (Dual) 11 x 1010 x 6 (Dual)11 x 10sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-8Table 7.3A.7 Values of Motor Size (hp) for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 1401/51/51/41/5 1/51/4 1/41/51/51/51/51/41/3 1/3 1/3 1/3 1/3 1/3 1/2 1/31/3 1/3 1/3 1/3 1/3 1/3 1/3 1/31/3 1/3 1/3 1/3 1/3 1/3 1/3 1/21/3 1/3 1/3 1/3 1/3 1/3 1/31/3 1/3 1/3 1/3 1/3 1/4 1/31/31/3 1/3 1/31/21/3 1/2 1/3 1/31/3 1/31/21/31/2 1/2 1/3 1/2 1/3 1/2 1/2 1/21/2 1/2 1/2 1/2 1/2 1/2 1/2 1/21/2 1/2 3/4 1/2 1/2 1/2 1/2 1/21/2 1/2 1/2 1/3 1/2 1/21/2 1/2 1/2 1/2 1/21/21/21/21/21/21/21/21/21/21/2 3/4 3/4 3/4 3/4 3/41/2 3/4 3/4 3/4 1/2 3/41/2 3/4 1/2 3/4 3/43/4 1/2 3/4 1/2 3/43/4 3/4 3/4 3/43/4 1/2 3/4 3/43/4 1 3/4 3/43/41/2 3/43/43/41/23/43/413/41sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-9Table 7.3A.8 Number of Speed Taps for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 1403343 44 43324444444443433434444344343344434 4434444 3443 34344 344 33344443354334434444333344323 444 43 252 3543344443454554334434344433343344 3452 4453 4442 433444343sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-10Table 7.3A.9 Values of Supply Air Outlet Area (sq.ft.) for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 1401.671.842.031.66 1.802.03 1.701.811.751.751.801.702.10 NA 2.03 2.10 NA 2.21 2.66 2.511.67 1.73 1.75 1.67 1.73 1.70 2.11 1.901.66 1.63 1.80 1.66 1.63 1.84 2.38 2.451.49 1.80 1.70 1.91 1.49 2.21 2.211.91 1.85 1.84 1.81 1.80 2.50 2.101.801.75 1.75 2.03 2.261.70 1.88 1.75 1.851.84 2.22 2.452.222.10 NA 2.21 2.11 2.25 2.74 2.51 2.512.38 1.73 2.10 2.56 2.12 2.11 2.50 2.562.50 2.12 2.26 2.38 1.90 2.56 2.49 2.322.50 1.90 2.21 2.26 3.18 3.182.26 2.50 2.51 2.50 3.602.03 2.512.45 3.022.71 2.692.102.712.262.66 NA 3.21 2.51 NA 3.212.86 2.25 2.57 2.88 2.76 3.032.62 3.02 3.16 3.02 2.382.32 2.86 2.49 2.62 3.342.26 3.18 2.32 2.882.51 2.88 2.73 3.162.51 2.74 3.27 3.162.88 2.88 2.893.02 3.602.69 3.192.49 3.233.192.74sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-11Table 7.3A.10 Values of AFUE for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14080808080 8080 80.28080.5808080.280 80 80 80 80 80 80 8080 80 81 80 80 80.2 80 8080 80 80 80 80 80 80 8080 80 80.2 80 80 80 8080 80 80 80 80 80 80.28080 80 808080.2 80 80 8080 80808080 80 80 80 80 80 80 8080 80 80.2 80 80 80 81 8081 80 80 80 80 80 80.2 8080 80 80 80 80 8080 80 80 80 8080808080808080.2808080 80 80 80 80 8080 80 80 80.5 80 8080 80 80 80 8080 80 80.2 80 8080 80 80 8080 80 80 8080 80 80 808180 80.28080808080.2 808080sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-12Table 7.3A.11 Values of Eae (kWh/yr) for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 140425361546554 523413 475471365341349322466 390 610 533 570 957 724 686639 304 482 712 635 858 679 684659 308 719 687 578 854 494 941449 478 573 449 718 894 855335 390 847 607 777 715 862509421 425 573 1136506 456 642 534510 451 934665585 575 934 845 760 1217 1068 603559 940 1075 948 1052 747 882 987500 1106 1137 595 814 876 1335 950637 814 864 730 1079 979842 855 801 1018 1520659 660934 1165828 113512888301139701 745 1015 1234 986 1126600 1143 1160 790 1082 11951116 1611 1267 1314 10651006 701 1226 1082 850924 1121 974 1389664 1069 1393 1448947 1579 1179 1448845 1390 12941165 1520963 10151111 18119371488sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-13Table 7.3A.12 Values of PE (W) for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14088956093 7760 571087568764878 88 60 72 93 77 80 10090 87 75 94 87 56 93 8094 87 71 91 87 73 75 6880 82 61 75 80 118 7975 95 73 103 96 75 797272 75 607257 96 74 9575 65747077 89 78 105 87 80 60 10075 87 55 90 87 99 75 9075 87 72 75 80 100 82 8075 80 115 80 116 12192 76 60 75 7960957365708177707380 72 75 60 92 8275 87 98 75 87 9787 100 75 98 8080 75 88 87 7576 107 80 7560 76 96 85100 79 119 857578 886579507583787075sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-14Table 7.3A.13 Values of On-Delay Time (secs) for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14045454545 4548 30453030453030 NA 45 30 NA 45 30 4545 30 30 45 30 30 45 3045 30 45 45 30 30 30 3030 30 30 30 30 45 4530 45 30 45 30 30 304530 30 453030 30 30 4530 30303030 NA 45 45 30 30 45 4530 30 30 45 30 45 30 4530 30 30 30 30 45 30 3030 30 45 30 45 4530 30 45 30 3045453030304530303030 NA 45 45 NA 3030 30 45 30 45 4530 45 45 45 3030 30 30 30 3030 45 30 3045 30 30 4545 30 45 453030 303030453030303030sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-15Table 7.3A.14 Values of Off-Delay Time (secs) for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14013590180135 100180 1409012012010014090 NA 180 90 NA 100 90 90135 60 120 135 60 140 135 150135 120 100 135 120 60 NA 120150 140 140 NA 150 90 100NA 90 60 90 140 120 140100120 120 18060140 120 120 9060 180 12018090 NA 100 135 60 60 180 90NA 60 140 135 120 135 120 135120 120 60 NA 150 135 140 150120 150 90 140 90 90140 120 180 120 12018090120 120180 1001401806090 NA 135 180 NA 90NA 60 135 120 90 135120 135 100 135 150150 60 140 120 0140 90 150 120180 120 140 10090 60 90 100120 120 140120 120100 1801406018060sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-16Table 7.3A.15 Values of Pre-Purge Time (secs) for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14015151515 NA15 NA153030NANANA NA 15 NA NA NA NA 1515 NA 30 15 NA NA 15 NA15 15 NA 15 15 NA NA 20NA NA NA NA NA 15 NANA 15 NA 15 NA 30 NANA30 30 15NANA 20 30 15NA NA20NANA NA NA 15 NA NA 15 15NA NA NA 15 15 15 30 1530 15 NA NA NA 15 NA NA30 NA 15 NA 15 15NA 30 15 30 2015152020NANANANANANA NA 15 15 NA NANA NA 15 30 15 1515 15 NA 15 NANA NA NA 15 NANA 15 NA 3015 30 NA NA15 NA 15 NA3030 NA2020NANANANANANAsizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-17Table 7.3A.16 Values of Post-Purge Time (secs) for Non-Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 1405555 NA5 553030NA515 NA 5 15 NA NA 15 55 5 30 5 5 5 5 NA5 NA NA 5 NA NA NA 5NA NA 5 NA NA 5 NANA 5 NA 5 NA 30 5NA30 30 5NA5 5 30 5NA NA5NA15 NA NA 5 5 NA 5 5NA 5 5 5 NA 5 30 530 NA NA NA NA 5 5 NA30 NA 5 NA 5 5NA 30 5 30 55555NANA5NANA15 NA 5 5 NA 15NA 5 5 30 5 5NA 5 NA 5 NANA NA 5 NA NANA 5 NA 305 30 NA NA5 NA 5 NA3030 555NANA5NANANAsizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-18Table 7.3B.1 Models and Manufacturers of Condensing Basic Model NonWeatherized Gas furnaces45506070758090100115120125140C - 58MCA040-08D - CMPB050U2*C - 58MCA060-08N - FG6RC040*-08AL - 90UGFA2-50-**TR - TDC040C924B*L - G26Q2-50-**TR - TUC040C924B*AM - GCCA045*X30AR - G1D90AH050D12AN - FG6RC060*-12AAM - GCCA070*X30AR - G1D90AH075D14AC - 58MCA080-12TX - CSA090NH3RAR - G1D90AH100D14BAM - GUCA045*X30AR - G1D91AU050D12BC - 58MCA060-12AM - GUCA070*X30AR - G1D91AU075D12BN - FG6RC080*-12BTX - VSA090NH3RD - CMPB100U3*AR - G1D93AC045D12BD - CMPB050U3*G - GMNT060-3AR - G1D93AC067D12BD - CMPB075U3*Y - P3DHB12N07501AR - G1D93AU045D12BI - N9MP1050B12**G - GMPN060-3AR - G1D93AU067D12BI - N9MP1075B12**Y - P3URB12N07501C - 58MCA040-12L - 90UGFA3-50-**R - RGRJ-06(E,N)MAESTX - CSA072NH3RL - 90UGFA3-75-**G - GMNT040-3L - G26Q3-50-**R - RGTJ-06(E,N)MAESTX - VSA072NH3RL - G26Q3-75-**G - GMPN040-3L - GHR26Q2/3-50-**TR - TDC060C936B*L - GHR26Q3-75-**N - FG6RC040*-12ATX - CSA054NH3RTR - TUC060C936B*R - RGRJ-07(E,N)MAESR - RGRJ-04(E,N)MAESTX - VSA054NH3RY - P3DHB12N05501R - RGRJ-07(E,N)YBESR - RGTJ-04(E,N)MAESY - P3DHB12N05501R - RGTJ-07(E,N)MAESR - RGTJ-07(E,N)YBESAM - GCCA070*X40AR - G1D91AU075D16CC - 58MCA080-16AR - G1D93AC090D16CAR - G1D91AU100D16CN - FG6RC120*-16CL - G26Q3/4-125-**AM - GUCA070*X40L - G26Q4/5-75-**G - GMNT080-4AR - G1D93AU090D16CC - 58MCA100-16R - RGTJ-12(E,N)RAGSAR - G1D93AC067D16CR - RGRJ-07(E,N)YBGSG - GMPN080-4G - GCCA090*X40D - CMPB100U4*AR - G1D93AU067D16CR - RGTJ-07(E,N)YBGSI - N9MP1080F16**G - GUCA090*X40G - GMNT100-4TX - CSA072NH4RN - FG6RC080*-16BR - RGRJ-09(E,N)ZAGSG - GMPN100-4TX - VSA072NH4RY - P3DHC16N07501R - RGTJ-09(E,N)ZAGSI - N9MP1100F14**Y - P3URC16N07501TX - CSA090NH4RL - 90UGFA3/4-100-**TX - VSA090NH4RL - G26Q3/4-100-**L - GHR26Q3/4-100-**N - FG6RC100*-16BR - RGRJ-10(E,N)ZAGSR - RGRJ-10(E,N)ZAJSR - RGTJ-10(E,N)ZAGSR - RGTJ-10(E,N)ZAJSTR - TDC100C948B*TR - TUC100C948B*Y - P3URC14N09501AR - G1D93AU090D20CAR - G1D90AH100D20BAM - GCCA115*X50C - 58MCA120-20AR - G1D90AH126D20CC - 58MCA140-20AR - G1D93AC090D20CAR - G1D91AU100D20CAM - GUCA115*X50G - GMNT120-5AR - G1D91AU125D20DY - P3URD20N13001G - GCCA090*X50C - 58MCA100-20AR - G1D93AC112D20DG - GMPN120-5D - CMPB125U5*G - GUCA090*X50I - N9MP1100J20**AR - G1D93AU112D20DL - GHR26Q4/5-120-**I - N9MP1125J20**R - RGRJ-09(E,N)ZAJSL - G26Q4/5-100-**N - FG6RC120*-20CL - 90UGFA4/5-125-**R - RGTJ-09(E,N)ZAJSL - GHR26Q4/5-100-**R - RGRJ-12(E,N)RAJSL - G26Q4/5-125-**TR - TUC100C960B*R - RGTJ-12(E,N)RAJSTX - CSA126NH5RTR - TUX100C960C*TR - TDC120C960B*TX - VSA126NH5RTX - CSA108NH5RTR - TUC120C960B*TX - VSA108NH5RY - P3DHD20N11201Y - P3DHC20N09501Y - P3URD20N11201Y - P3URC20N09501Manufacturer Key:AM = AmanaD = DucaneL = Lennox IndustriesTR = TraneAR = ArmstrongG = GoodmanN = NordyneTX = Texas FurnaceC = Carrier CorporationI = International Comfort ProductsR = RheemY = Yorksizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-19Table 7.3B.2 Values of Input Capacity (kBtu/h) for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14040 50 6040 5040 504046 50 60 69 75 80 90 10046 50 60 69 75 80 90 10045 50 60 68 75 8045 50 60 68 75 8040 50 60 72 7540 50 60 72 7540 50 60 7540 54 60 7545 54 60 7545 60 757569 75 80 90 100 120 12569 75 80 90 100 12068 75 80 92 10068 75 81 92 10072 80 90 10072 80 90 10080 90 10090 10010010010510510510510010010090 100 115 120 125 13890 100 115 120 125 14092 100 112.5 120 12592 100 112.5 120 12590 100 120 12590 100 120 125100 120 126100 120 126108 120108 120100 120100sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-20Table 7.3B.3 Values of Output Capacity (kBtu/h) for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14037 46 5637 4638 463743 45 55 65 67 74 81 9043 45 56 64 68 74 82 9341 46 55 62 70 7341 44 54 62 69 7437 47 56 65 6936 47 56 66 7036 47 56 7037 48 56 7042 49 55 7041 55 697063 68 74 83 91 110 11763 71 74 83 93 11262 70 72 87 9362 70 73 86 9265 74 84 9266 75 84 9176 81 9182 9392939797979793949383 90 108 112 112 12783 91 106 111 113 13085 93 104 108 11685 91 104 111 11684 93 110 11584 93 113 11893 112 11493 112 11597 11399 11193 11194sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-21Table 7.3B.4 Values of Maximum CFM @ 0.5 in.w.c. for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 140895 900 900800 950807 9508121195 1120 1100 1366 1260 1245 1316 13151196 1297 1200 1407 1207 1210 1316 14501170 1205 1135 1164 1205 14851297 1183 1050 1207 1148 12631215 1225 1100 1299 12001140 1225 1180 1299 1200950 1200 1082 13001120 1140 1196 11101195 1140 1484 14401220 1484 115013701590 1759 1525 1815 1806 1570 17001643 2075 1590 1806 1570 17001599 1625 1400 1581 17951759 1540 1575 1544 17151507 1550 1580 15501507 1780 1570 13171688 1683 16501683 16501590162015401810156018201614174614331943 1885 1903 1965, 2000, 2130 1970 2130, 1780, 18351821 1943 1976 2125 1980 20471987 1930, 2130 1821 1910 21152017 1978 1980 2080 20291910 2105 1990 20501850 2180 1900 20502165 2040 18272165 1939 18271807 22611807 20021984 20652026sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-22Table 7.3B.5 Values of Low CFM @ 0.5 in.w.c. for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 140470 540 565565 625NA 625NA621 1120 710 859 1045 910 917 1055584 1297 840 745 800 630 917 1080653 1205 835 816 965 845868 1183 800 800 546 794830 1225 715 902 770825 1225 770 902 770810 1200 NA 1040720 1140 NA 750685 1140 842 1095690 715 75010301047 952 995 956 892 1090 10901012 1310 1325 892 1100 1260775 1270 1250 1056 1290952 1195 617 1014 12851126 900 1120 13301126 1198 1060 5281181 1120 11101120 1110111010901130135010801360NANA10351504 1230 1288 1365 1240 13701304 1504 1188 1110 1475 14771284 1380 1304 1660 13201115 1498 1475 1460 15331375 1415 1250 14601350 1480 1475 1460NA 1475 1333NA NA 13331342 NA1342 13981464 14921461sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-23Table 7.3B.6 Values of Blower Size (diam X width) for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14010 x 6 10 x 6 10 x 610 x 6 10 x 710 x 7 10 x 79 x 711 x 6 12 x 6 10 x 6 11 x 7 12 x 6 10 x 7 10 x 8 12 x 611 x 6 10 x 8 10 x 7 11 x 7 10 x 8 10 x 8 10 x 8 10 x 910 x 8 10 x 6 10 x 6 10 x 8 10 x 6 11 x 810 x 8 11 x 8 10 x 6 10 x 8 11 x 8 11 x 810 x 7 10 x 8 11 x 7 10 x 8 10 x 810 x 6 10 x 8 11 x 7 10 x 8 10 x 810 x 6 10 x 8 10 x 8 10 x 810 x 6 10 x 6 10 x 7 11 x 711 x 7 10 x 6 11 x 8 12 x 711 x 7 11 x 8 11 x 712 x 711 x 9 12 X 10 11 x 8 12 X 10 12 X 10 10 x 10 10 x 1011 x 9 11.5 x 9 10 x 8 12 X 10 11 x 8 11 x 1012 X 10 12 x 7 10 x 8 11 x 9 12 x 912 X 10 12 x 7 11 x 10 11 x 9 10 x 1010 x 4 (Dual) 10 x 10 12 x 11 10 x 1010 x 4 (Dual) 11 x 8 12 x 11 11 x 1010 x 10 10 x 4 (Dual) 10 x 1010 x 4 (Dual) 10 x 1010 x 1010 x 1012 x 1112 x 1112 x 1112 x 1111 x 1010 x 1011 x 812 X 10 12 x 9 11 x 10 11 x 10 12 x 9 11 x 1012 X 10 12 X 10 11 x 10 11 x 10 12 X 10 11 x 1011 x 9 11 x 10 12 X 10 10 x 6 (Dual) 12 x 1211 x 9 11 x 10 12 X 10 11.5 x 9 11 x 1012 x 11 11.5 x 9 11 x 10 11.5 x 912 x 11 11.5 x 9 11 x 10 11.5 x 911 x 10 11 x 10 10 x 6 (Dual)11 x 10 11 x 10 10 x 6 (Dual)10 x 6 (Dual) 11 x 1010 x 6 (Dual) 11 x 1011 x 10 11 x 1011 x 10sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-24Table 7.3B.7 Values of Motor Size (hp) for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 1401/5 1/4 1/51/5 1/51/5 1/51/51/3 1/3 1/3 1/2 1/2 1/3 1/2 1/21/3 1/3 1/3 1/2 1/3 1/3 1/2 1/31/3 1/3 1/3 1/3 1/3 1/21/3 1/2 1/3 1/3 1/2 1/21/3 1/3 1/2 1/2 1/31/3 1/3 1/2 1/2 1/31/3 1/3 1/3 1/21/3 1/3 1/3 1/21/2 1/3 1/2 1/21/2 1/2 1/21/21/2 3/4 1/2 3/4 3/4 1/2 1/21/2 3/4 1/2 3/4 1/2 1/23/4 3/4 1/2 1/2 1/23/4 3/4 1/2 1/2 1/23/4 1/2 1/2 1/23/4 3/4 1/2 1/21/2 3/4 1/23/4 1/21/21/21/23/41/23/41/21/23/49/10 3/4 1/3 3/4 3/4 3/49/10 9/10 1/2 3/4 9/10 11/3 3/4 9/10 3/4 3/43/4 3/4 9/10 3/4 3/43/4 3/4 3/4 3/43/4 3/4 3/4 3/41/2 3/4 3/41/2 1/2 3/43/4 1/23/4 11 11sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-25Table 7.3B.8 Number of Speed Taps for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 1403333 34 3343343443444443434334334444434434434344444 4344 3443 3433345455 4445354 353343534434 4334 3343444 4443333343534333554353435334454435 4435 354 344 344 44 33 33sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-26Table 7.3B.9 Values of Supply Air Outlet Area (sq.ft.) for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 1402.09 1.51 2.091.75 1.852.11 1.852.211.75 1.92 1.75 1.75 1.92 2.09 2.10 2.372.10 2.24 2.09 2.10 2.24 2.50 2.10 1.972.06 1.51 1.70 2.06 1.51 1.972.24 1.80 1.50 2.24 1.80 2.262.09 1.85 2.27 2.10 1.851.70 1.85 2.29 2.10 1.851.50 1.58 2.11 1.581.75 2.10 2.21 2.272.27 2.10 1.97 2.272.29 1.97 2.292.782.26 2.72 2.09 2.53 2.72 2.88 3.162.66 2.51 2.18 2.72 2.56 3.262.53 2.76 1.92 2.26 1.972.72 2.78 2.26 2.66 2.662.49 2.50 2.76 2.342.49 2.44 2.78 2.262.74 2.49 2.512.49 2.512.192.502.762.762.782.782.572.692.743.19 2.37 2.78 3.02 2.97 3.022.53 2.72 3.22 3.13 3.19 3.232.78 2.56 2.95 2.76 2.433.22 2.73 3.19 2.19 2.732.76 2.51 2.88 3.162.78 2.19 3.24 3.163.16 3.26 2.893.16 3.03 2.892.89 3.142.89 2.842.44 3.232.74sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-27Table 7.3B.10 Values of AFUE for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14092 92 9292 9091 929292 90 92.1 92 90 92 90 9092 91 92 92 91 92 91 9293 92 93 93 92 9193 90 93 93 90 9292 90 93 90 9093 92 92 91 9293 92 91 9292 90 92 9394 91 91 9292 91 929292 91 92 93 91 92 9292 92 93 93 92 9293 92 93 92 9293 92 90 92 9390 92 94 9391 91 92 9094 90 9091 9290929292929291929293 90 92 92 90 9293 91 92 93 91 9292 92 93 93 9292 90 93 90 9094 92 92 9092 92 94 9292 92 9092 91 9190 9291 9191 9293sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-28Table 7.3B.11 Values of Eae (kWh/yr) for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 140325 384 419339 480326 464327512 828 835 690 755 525 985 804592 680 483 743 750 656 910 616660 615 467 850 701 822660 710 581 850 954 729474 528 490 920 537331 499 484 930 583438 510 534 748442 625 520 512412 695 674 788436 674 588750370 750 869 900 903 967 975627 933 623 900 794 961850 788 609 883 920850 750 927 837 686812 774 848 872780 978 832 996795 916 671839 695652987862862885885772900565900 1006 418 1241 1247 1039900 920 897 1130 1100 1278909 1045 1150 1079 1130761 1036 1150 1136 1280848 870 967 977832 949 961 1095870 961 962874 1107 1262909 12091089 16351037 11241073sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-29Table 7.3B.12 Values of PE (W) for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14070 87 8090 10079 7878133 82 90 117 77 78 89 81132 123 76 123 131 90 91 87123 87 90 123 87 82123 112 75 123 127 7171 100 92 77 10090 100 110 79 7675 100 80 10090 74 84 100109 77 76 9389 76 11081115 127 80 133 133 69 79123 79 90 133 82 118143 93 75 128 87143 81 125 129 9077 75 99 7580 81 98 12679 87 10094 79100909797101101784874146 79 133 88 86 100146 143 144 90 142 78125 80 147 75 87124 13 147 100 9099 79 69 10098 100 99 7953 118 10255 80 102103 70103 7873 7386sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-30Table 7.3B.13 Values of Pre-Purge Time (secs) for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14015 NA 1530 NANA 15NANA NA 30 NA NA 15 NA NANA NA 15 NA NA 30 NA NANA NA 15 NA NA NANA 3 15 NA 3 NA15 NA 30 NA NA15 15 30 NA 1515 15 NA 1530 NA NA 3030 NA NA 3030 NA 3030NA NA 15 NA NA 30 15NA 15 15 NA 15 30NA 30 15 NA NANA 30 3 NA 15NA 30 30 15NA NA 30 3NA NA NANA 15153030303030NANANANA NA NA 15 NA 15NA NA NA 15 NA NANA 15 NA 15 NANA 3 NA 15 330 15 30 NA30 15 30 15NA 30 NANA NA NANA NANA NANA NANAsizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-31Table 7.3B.14 Values of Post-Purge Time (secs) for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14015 NA 1530 NANA 5NA15 NA 30 15 NA 15 5 NA15 NA 15 15 NA 30 5 NANA NA NA NA NA NANA 30 NA NA 30 NA15 NA 5 5 NANA 5 5 5 5NA 5 NA 530 5 NA 55 5 NA 55 NA 5515 NA 15 NA NA 30 515 5 NA NA 15 5NA 5 NA 15 NANA 5 30 15 NA5 30 5 NA5 NA 5 30NA 5 NA5 55305555NANANANA NA 15 15 NA 15NA NA 15 NA NA NA15 15 NA NA NA15 30 NA 5 305 5 30 NA55 55NA 5 5NA NA 55 NA5 NANA NANAsizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-32Table 7.3B.15 Values of On-Delay Time (secs) for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 14060 NA 6030 45NA 45NA30 NA 30 30 NA 60 30 NA30 NA 60 30 NA 30 30 NANA NA 30 NA NA 30NA 30 30 NA 30 3060 45 20 30 4530 45 20 30 4530 45 NA 4530 30 NA 2020 30 30 2020 30 202030 NA 60 NA NA 30 4530 45 30 NA 60 20NA 20 30 30 NANA 20 30 30 3030 30 20 3030 30 20 3030 30 4530 45453020202020NANA30NA NA 30 60 NA 60NA NA 30 30 NA 3030 60 NA 30 NA30 30 NA 45 3020 45 30 4520 45 20 45NA 20 30NA NA 3030 NA30 3030 3030sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-33Table 7.3B.16 Values of Off-Delay Time (secs) for Condensing Basic Model NonWeatherized Gas furnaces45 50 60 70 75 80 90 100 115 120 125 140135 NA 135120 60NA 90NA90 NA 120 90 NA 135 140 NA90 NA 135 90 NA 120 140 NANA NA 150 NA NA 60NA 140 150 NA 140 60135 60 120 140 60150 90 120 140 90150 90 NA 90120 140 NA 120120 140 60 120120 60 12012090 NA 135 NA NA 120 9090 90 150 NA 135 120NA 120 150 90 NANA 120 140 90 150140 120 120 150140 60 120 14060 140 60140 9090120120120120120NANA60NA NA 90 135 NA 135NA NA 90 150 NA 6090 135 NA 150 NA90 140 NA 90 140120 90 120 60120 90 120 90NA 120 140NA NA 140140 NA140 6060 6060sizes not used as virtual modelsInput Capacity (kBTU/h)

Maximum Airflow ( at 0.5" Static Pressure ) 800 CFM (2 tons)

1200 CFM (3 tons)

1600 CFM (4 tons)

2000 CFM (5 tons)7.3-34

# 7.3-35 

# REFERENCES

1. Gas Appliance Manufacturers Association, Consumer Directory of Certified Efficiency

Ratings for Heating and Water Heating Equipment Database, April 2002.

<http://www.gamanet.org/consumer/certification/wd042002/install/Gama_web.EXE>