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106633-UIM-A-0205

Unitary Products Group

21

NOTES:

1. Airflow expressed in standard cubic feet per minute (CFM) and in cubic meters per minute (m

3

/min).

2. Return air is through side opposite motor (left side).

3. In order to stay within the velocity rating the filters, airflows above 1800 CFM (50.97 m

3

/min) require either return from two sides or one side plus bottom.

4. Motor voltage at 115 V.

5. NR = Operation at this static pressure is not recommended.

FILTER PERFORMANCE

The airflow capacity data published in Table 14 represents blower per-
formance WITHOUT filters. To determine the approximate blower per-
formance of the system, apply the filter drop value for the filter being
used or select an appropriate value from the Table 15.

NOTE: 

The filter pressure drop values in Table 15 are typical values for

the type of filter listed and should only be used as a guideline.
Actual pressure drop ratings for each filter type vary between fil-
ter manufacturers.

* Washable Fiber Filters are the type supplied with furnace.

TABLE 14: 

Blower Performance CFM

AIRFLOW WITH BOTTOM OR ONE SIDE RETURN

MODELS

Speed

Tap

EXTERNAL STATIC PRESSURE, INCHES W.C. (kPa)

Input/

Airflow/cabinet

0.1 (0.025)

0.2 (0.050)

0.3 (0.075)

0.4 (0.099)

0.5 (0.124)

0.6 (0.149)

0.7 (0.174) 

0.8 (0.199) 

0.9 (0.224)

1.0 (0.249)

CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min

40/1200/A 

HIGH 1395

40

1330

38

1265

36

1200

34

1120

32

1030

29

940

27

820

23

NR

NR

NR

NR

M-HI 1025

29

990

28

960

27

925 26

885

25

825

23

750

21

660

19

NR

NR

NR

NR

M-LO 785

22

765

22

745

21

715

20

670

19

625

18

545

15

NR

NR

NR

NR

NR

NR

LOW 640

18

605

17

590

17

565

16

530

15

465

13

405

11

NR

NR

NR

NR

NR

NR

80/1200/B 
60/1200/B 

HIGH  1650 47 1605 45 1570 44 1525 43 1465 41 1410 40 1350 38 1275 36 1170 33 1060 30 

M-HI  1165 33 1185 34 1175 33 1165 33 1150 33 1140 32 1100 31 1050 30  970  27  875  25 

M-LO  895 25 915 26 935 26 940 27 940 27 920 26 905 26 860 24 815 23 750 21 

LOW  710 20 725 21 725 21 725 21 720 20 700 20 685 19 660 19 625 18 560 16 

100/2000/C

HIGH 2300

65

2210

63

2120

60

2020

57

1930

55

1830

52

1715

49

1595

45

1480

42

1350

39

M-HI 1950

55

1900

54

1830

52

1755

50

1680

48

1595

45

1500

42

1390

39

1270

36

1155

33

M-LO 1610

46

1545

44

1490

42

1440

41

1390

39

1315

37

1230

33

1155

33

1050

30

920

26

LOW 1325

38

1270

36

1225

35

1175

33

1105

31

1045

30

990

28

905

25

890

25

790

22

100/1600/C 

80/1600/C 

HIGH  1960 56 1955 55 1925 55 1890 54 1830 52 1765 50 1695 48 1615 46 1600 45 1485 42 

M-HI  1565 44 1560 44 1560 44 1575 45 1545 44 1530 43 1475 42 1425 40 1365 39 1260 36 

M-LO  1230 35 1275 36 1285 36 1300 37 1310 37 1300 37 1280 36 1245 35 1190 34 1070 30 

LOW  930 26 945 27 965 27 975 28 975 28 975 28 975 28 950 27 910 26 850 24 

120/2000/D 

HIGH  2560 72 2485 70 2410 68 2320 66 2220 63 2135 60 2035 58 1920 54 1785 51 1650 47 

M-HI  2090 59 2050 58 1990 56 1970 56 1885 53 1820 52 1760 50 1675 47 1545 44 1405 40 

M-LO  1695 48 1675 47 1665 47 1615 46 1565 44 1510 43 1460 41 1385 39 1285 36 1140 32 

LOW  1175 33 1150 33 1135 32 1110 31 1085 31 1055 30 1005 28  980  28  970  27  845  24 

AIRFLOW WITH TWO SIDE RETURNS OR WITH BOTTOM AND ONE SIDE RETURN

MODELS

Speed

Tap

EXTERNAL STATIC PRESSURE, INCHES W.C. (kPa)

Input/

Airflow/cabinet

0.1 (0.025)

0.2 (0.050)

0.3 (0.075)

0.4 (0.099)

0.5 (0.124)

0.6 (0.149)

0.7 (0.174) 

0.8 (0.199) 

0.9 (0.224)

1.0 (0.249)

CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min CFM  m

3

/min

100/2000/C

HIGH 2465

70

2380

67

2295

65

2195

62

2095

59

1995

56

1875

53

1760

50

1620

46

1470

42

M-HI 2085

59

2035

58

1960

55

1880

54

1800

51

1705

48

1605

45

1485

42

1360

39

1235

35

M-LO 1725

49

1625

46

1595

45

1540

44

1485

42

1405

40

1315

37

1235

35

1125

32

995

28

LOW 1420

40

1360

39

1310

37

1255

36

1180

33

1120

32

1070

30

970

27

950

27

845

24

120/2000/D 

HIGH  2615 74 2535 72 2450 69 2385 68 2285 65 2175 62 2075 59 1945 55 1825 52 1670 47 

M-HI  2055 58 2045 58 2015 57 1985 56 1932 55 1855 53 1785 51 1730 49 1605 45 1470 42 

M-LO  1690 48 1650 47 1620 46 1600 45 1570 44 1525 43 1470 42 1395 40 1300 37 1200 34 

LOW  1345 38 1335 38 1335 38 1285 36 1250 35 1230 35 1180 33 1115 32 1010 29  850  24 

TABLE 15: 

Filter Performance - Pressure Drop Inches W.C. and (kPa)

AIRFLOW 

RANGE

MINIMUM OPENING SIZE

FILTER TYPE

DISPOSABLE

WASHABLE FIBER*

PLEATED

1 Opening

2 Openings

1 Opening

2 Opening

1 Opening

2 Opening

1 Opening

2 Opening

Sq. in.   

m

2

Sq. in.

m

2

In w.c.

Pa

In w.c.

Pa

In w.c.

Pa

In w.c.

Pa

In w.c.

Pa

In w.c.

Pa

0 - 750

230

.15

0.01

2.5

0.01

2.5

0.15

37

751 - 1000

330

.21

0.04

10

0.03

7.5

0.20

50

1001 - 1250

330

.21

0.08

20

0.07

17

0.20

50

1251 - 1500

330

.21

0.08

20

0.07

17

0.25

62

1501 - 1750

380

.25

658

.42

0.14

35

0.08

20

0.13

32

0.06

15

0.30

75

0.17

42

1751 - 2000

380

.25

658

.42

0.17

42

0.09

22

0.15

37

0.07

17

0.30

75

0.17

42

2001  &  Above

463

.30

658

.42

0.17

42

0.09

22

0.15

37

0.07

17

0.30

75

0.17

42

Summary of Contents for FC9T Series

Page 1: ...IST OF SECTIONS SAFETY 1 DUCTWORK 3 FILTERS 6 GAS PIPING 6 ELECTRICAL POWER 8 COMBUSTION AIR AND VENT SYSTEM 9 CONDENSATE PIPING 15 SAFETY CONTROLS 16 START UP AND ADJUSTMENTS 16 WIRING DIAGRAM 23 LIS...

Page 2: ...ational vehicles Failure to carefully read and follow all instructions in this manual can result in furnace malfunction death personal injury and or property damage Furnaces for installation on combu...

Page 3: ...required for passage to the front when servicing or for inspection or replacement of flue vent connections In all cases accessibility clearances shall take precedence over clear ances for combustible...

Page 4: ...the Supply Duct Static Pressure reading to the Return Duct Static Pressure reading and adding the pressure drop across any applied coil TABLES 2 AND 3 are to be used as a guide only to help the instal...

Page 5: ...eal the furnace to plenum connections to prevent air leakage Refer to Figure 1 for unit and plenum dimensions Attic installations must meet all minimum clearances to combustibles and have floor suppor...

Page 6: ...nd in the codes The furnace rating plate and the instructions in this section specify the type of gas approved for this furnace only use those approved gases The instal lation of a drip leg and ground...

Page 7: ...nal pressure Never apply a pipe wrench to the body of the gas valve when installing piping A wrench must be placed on the octag onal hub located on the gas inlet side of the valve Placing a wrench to...

Page 8: ...onnect the green furnace lead equipment ground to the power supply ground An alternate wiring method is to use a field provided 2 5 08 cm x 4 10 2 cm box and cover on the outside of the furnace Route...

Page 9: ...mplete duct system and its own wall thermostat SECTION VI COMBUSTION AIR AND VENT SYSTEM COMBUSTION AIR AND VENT SAFETY This Category IV dual certified direct vent furnace is designed for resi dential...

Page 10: ...els column then look to the right in those rows to the five elbows column It shows N A in the 1 1 2 3 8 cm row so 1 1 2 5 1 cm pipe cannot be used the 2 5 1 cm pipe row shows 40 ft 12 2 m so up to 40...

Page 11: ...0 kW 36 inches 91 cm for models 100 000 BTUH 30 kW Two pipe direct vent applications 9 inches 23 cm for models 50 000 BTUH 15 kW 12 inches 30 cm for models 50 000 BTUH 15 kW Single pipe applications 4...

Page 12: ...stion air systems must be installed so the vent and the combustion air pipes terminate in the same atmospheric zone Refer to Figures 13 or 14 VENTING MULTIPLE UNITS Multiple units can be installed in...

Page 13: ...ical vent Care should be taken to locate side vented systems where trees or shrubs will not block or restrict supply air from entering the terminal Also the terminal assembly should be located as far...

Page 14: ...ht FIGURE 19 Outside and Ambient Combustion Air GABLE VENT GAS VENT SOFFIT VENT VENTILATED ATTIC TOP ABOVE INSULATION OPTIONAL INLET a OUTLET AIR a VENTILATED CRAWL SPACE GAS WATER HEATER VENTILATED A...

Page 15: ...Air The ventilated attic space or a crawl space from which the combustion air is taken must comply with the requirements specified in AIR SOURCE FROM OUTDOORS in this instruction or in Section 5 3 Air...

Page 16: ...CONTROLS These controls are mounted on the burner box assembly If the temper ature in the burner box exceeds its set point the ignition control and the gas valve are de energized The operation of thi...

Page 17: ...ll start and come up to speed Shortly after inducer start up the hot surface igniter will glow for about 17 seconds b After this warm up the ignition module will energize open the main gas valve c Aft...

Page 18: ...3600 then divided by the time it took to measure 0 10 m3 of gas from the gas meter For Propane LP Gas multiply the Heat content of the gas MJ m3 or Default 93 15 times 0 10 m3 of gas measured at the...

Page 19: ...shown in Figure 23 The procedure below is used to adjust either the high fire manifold pressure or the low fire manifold pressure IMPORTANT The cap for the pressure regulator must be removed entirely...

Page 20: ...The fan off timing may be adjusted by positioning the jumper on two of the four pins as shown in Figure 25 The furnace control board also allows user selection of the blower speed that is energized d...

Page 21: ...1225 35 1175 33 1105 31 1045 30 990 28 905 25 890 25 790 22 100 1600 C 80 1600 C HIGH 1960 56 1955 55 1925 55 1890 54 1830 52 1765 50 1695 48 1615 46 1600 45 1485 42 M HI 1565 44 1560 44 1560 44 1575...

Page 22: ...otal system static is 0 58 w c To determine the system airflow complete the follow ing steps Obtain the airflow values at 0 50 w c 125 Pa 0 60 w c 150 Pa ESP Airflow 0 50 2285 CFM 64 70 m3 min Airflow...

Page 23: ...106633 UIM A 0205 Unitary Products Group 23 SECTION X WIRING DIAGRAM FIGURE 26 Wiring Diagram...

Page 24: ...change without notice Printed in U S A 106633 UIM A 0205 Copyright by York International Corp 2005 All rights reserved Supersedes 035 20417 001 Rev C 0904 Unitary 5005 Norman Product York OK Group Dr...

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