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Page 9 of 16

507388-01

Issue 1732

Airflows and Heating Temperature Rises as a Function of External Static Pressure

Model

Rise 

Range 

(°F)

Mid 

Rise 

(°F)

Indoor 

Blower 

Speed

Unit 

Voltage 

(V)

0.1“ w.c.

0.2“ w.c.

0.3“ w.c.

0.4“ w.c.

SCFM

Temp 

Rise 

(°F)

SCFM

Temp 

Rise 

(°F)

SCFM

Temp 

Rise 

(°F)

SCFM

Temp 

Rise 

(°F)

HWC8(R/N)240912A

25 - 55

40

LOW

208

365

49

340

53

315

N/A

285

N/A

230

425

42

405

44

380

47

350

51

MED *

208

445

40

415

43

390

46

365

49

230

515

35

485

37

455

39

430

42

HIGH

208

620

29

585

31

555

32

520

34

230

685

26

650

28

610

29

570

31

HWC8(R/N)360912A

35 - 65

50

LOW

208

365

N/A

340

N/A

315

N/A

285

N/A

230

425

63

405

N/A

380

N/A

350

N/A

MED

208

445

60

415

65

390

N/A

365

N/A

230

515

52

485

55

455

59

430

62

HIGH *

208

620

43

585

46

555

48

520

52

230

685

39

650

41

610

44

570

47

HWC8(R/N)360918A
HWC8(R/N)360924A

25 - 55

40

LOW

208

480

N/A

465

N/A

450

N/A

435

N/A

230

610

44

590

45

565

47

535

50

MED *

208

750

36

715

38

685

39

655

41

230

810

33

770

35

735

37

700

38

HIGH

208

860

31

815

33

770

35

735

37

230

880

30

835

32

790

34

750

36

HWC8(R/N)480918A
HWC8(R/N)480924A

35 - 65

50

LOW

208

480

N/A

465

N/A

450

N/A

435

N/A

230

610

59

590

61

565

63

535

N/A

MED *

208

750

48

715

50

685

52

655

55

230

810

44

770

46

735

49

700

51

HIGH

208

860

42

815

44

770

46

735

49

230

880

41

835

43

790

45

750

48

HWC8(R/N)600918A
HWC8(R/N)600924A

45 - 75

60

LOW

208

480

N/A

465

N/A

450

N/A

435

N/A

230

610

73

590

N/A

565

N/A

535

N/A

MED

208

750

60

715

63

685

65

655

68

230

810

55

770

58

735

61

700

64

HIGH *

208

860

52

815

55

770

58

735

61

230

880

51

835

54

790

57

750

60

HWC8(R/N)480930A

30 - 60

45

TAP 1 

(HEAT) 208 or 230

735

49

700

51

670

53

640

56

TAP 2 

(HEAT) * 208 or 230

825

43

795

45

770

46

745

48

TAP 3 

(HEAT) 208 or 230

895

40

865

41

840

43

810

44

TAP 4 

(COOL) 208 or 230

800

765

735

715

TAP 5 

(COOL) 208 or 230

880

845

820

795

HWC8(R/N)600930A

45 - 75

60

TAP 1 

(HEAT) 208 or 230

735

61

700

64

670

67

640

70

TAP 2 

(HEAT) * 208 or 230

825

54

795

56

770

58

745

60

TAP 3 

(HEAT) 208 or 230

895

50

865

52

840

53

810

55

TAP 4 

(COOL) 208 or 230

800

765

735

715

TAP 5 

(COOL) 208 or 230

880

845

820

795

N/A: Do not operate unit in heating mode using this blower speed at this external static pressure. Outside of temperature rise range.
* As shipped speed for heating operation

Table 2. 

Содержание HWC8 V Series

Страница 1: ...cinity of this or any other appliance Such actions could result in property damage personal injury or death WARNING Do not store combustible materials near the furnace or warm air ducts The material may ignite by spontaneous combustion creating a fire hazard WARNING These units are not approved for mobile home applications Such use could result in property damage personal injury or death WARNING I...

Страница 2: ...held to 0 sides 2 top and 1 front and plenum Adequate clearance must be provided to install gas line union and manual shutoff valve as well as providing accessibility for field wiring Do not install directly on carpeting tile or other combustible material other than wood flooring The grille side of the unit may be flush with or extend beyond the face of the exterior wall but should not be recessed...

Страница 3: ...opening with non hardening caulking compound The seal must be weather tight to prevent entrance of moisture and water into the building Assure that the unit is completely seated against the gaskets on the wall sleeve The sleeve is not intended as the sole support for the unit An additional support must be provided near the return opening on the unit for adequate support The use of vibration isolat...

Страница 4: ...a direct vent furnace which obtains all air needed for combustion from outdoors Insufficient combustion air can cause headaches nausea dizziness or asphyxiation It will also cause excess water in the heat exchanger resulting in rusting and premature heat exchanger failure Excessive exposure to contaminated combustion air will result in safety and performance related problems Avoid exposure to the ...

Страница 5: ...maller than the manual valve used Consult the local utility or National Fuel Gas Code for complete details on special requirements in sizing gas piping The units supplied for operation with natural gas contain a gas regulator which must be operated with inlet gas pressures specified on the rating plate If gas line pressure exceeds this figure an additional high pressure regulator must be installed...

Страница 6: ...e minimum circuit ampacity maximum fuse size and minimum voltage Units must never be installed where voltage exceeds 10 over the voltage indicated on the rating plate Units are factory wired for a 230 volt power supply If power supply is 208 volts it will be necessary to change a wire connection on unit transformer from 240 volt terminal to 208 volt terminal as shown on the wiring diagram Failure ...

Страница 7: ... The thermostat must be located on an inside wall where it will not be affected by drafts sunlight or any other heat producing appliances Connect the thermostat wires to the low voltage leads on top of the unit following the wiring diagram attached to the unit The heat anticipator setting is 0 50 amp Air Filter All indoor return air must be filtered A permanent type filter is furnished with the un...

Страница 8: ...hat all other gas appliances are turned off The test hand on the meter should be timed for at least one revolution Note the number of seconds for one revolution BTU HR Input Cubic Feet per Revolution x 3600 x Heating Value Seconds per Revolution Adjustments Cooling Section HWC models No adjustments are required or should be attempted regarding any of the components of the cooling chassis The chass...

Страница 9: ...4 750 36 HWC8 R N 480918A HWC8 R N 480924A 35 65 50 LOW 208 480 N A 465 N A 450 N A 435 N A 230 610 59 590 61 565 63 535 N A MED 208 750 48 715 50 685 52 655 55 230 810 44 770 46 735 49 700 51 HIGH 208 860 42 815 44 770 46 735 49 230 880 41 835 43 790 45 750 48 HWC8 R N 600918A HWC8 R N 600924A 45 75 60 LOW 208 480 N A 465 N A 450 N A 435 N A 230 610 73 590 N A 565 N A 535 N A MED 208 750 60 715 6...

Страница 10: ...rmostat system switch to COOL 3 Set thermostat to temperature desired Heating Sequence of Operation 1 Thermostat calls for heat 2 Combustion blower starts and proper air flow is proven by the pressure switch closing 3 Blower continues to operate for 30 seconds prior to the burners lighting 4 Ignition control begins spark and opens gas valve The burners are lit Ignition is proved through the flame ...

Страница 11: ...rary or short periods of shutdown set the thermostat system switch to OFF For a prolonged period of shutdown set the thermostat system switch to OFF and turn off the electrical power supply and the gas supply to the unit Maintenance Refer to Figure 8 for heating compartment component layout It is recommended that the furnace be inspected annually by a qualified service person ELECTRICAL SHOCK FIRE...

Страница 12: ... brackets The mounting brackets contain pins to locate the assembly and hold it in place after the screws are removed The mounting brackets are hidden until the burner assembly is removed 8 First carefully pull the burner assembly toward you until it is clear of the locating pins in the mounting brackets 9 Then move the assembly away from the vest panel 10 Finally pull the assembly from the unit 1...

Страница 13: ... the unit in case of overheating and automatically resets when temperature falls to an acceptable level It is not field adjustable 1 Remove the control board mounting bracket as described previously 2 Disconnect the two orange and yellow wires at the primary limit switch 3 Remove the three screws securing the primary limit switch to the vest panel 4 For reassembly follow the above steps in reverse...

Страница 14: ...limited to Cleaning the air filter Follow directions noted on the filter and label attached to the access panel Cleaning the condenser coil if covered with any foreign material lint leaves or other obstructions If servicing or major repairs are required the complete chassis can be removed from the unit To remove the chassis 1 Shut off the main power supply 2 Remove filter access panel and panel co...

Страница 15: ...Page 15 of 16 507388 01 Issue 1732 Figure 10 Wiring Diagrams ...

Страница 16: ...Page 16 of 16 507388 01 Issue 1732 Figure 11 ...

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