Lochinvar FB751, FB1001, FB1251, FB1501, FB1751 User Manual

FBII-RP_100207789_2000004589_Rev N

Replacement Parts List

PARTS & SERVICE DEPARTMENT

Nashville, Tennessee
877-554-5544 • Fax: [phone]

[e-mail]
www.Lochinvar.com

Crest

®

Heating Boilers

FBN(L) 751 - 2001

Series 100 - 101 & 110 - 111

61

IMG01113

58

69

57

65

55

67

22

60

62

59

7

10

4

5

70

10

6

63

68

71

53

IMG01114

CONTROL PANEL

17

14

1

13

66

HEAT EXCHANGER

33

21

22

24

21

47

48

IMG01119

50

34

28

28

27

30

16

15

GAS TRAIN

Series 100 & 101

12

11

29

26

31

32

IMG01117

42

40

41

43

54

64

46

49

52

25

DISPLAY PANEL

33

44

39

45

40

51

64

8

59

35

60

64

20

2000508147

18

19

50

34

37

26

9

GAS TRAIN

Series 110 & 111

28

27

16

15

38

36

DIR #2000562968 00

32

FBII-RP_100207789_2000004589_Rev N

2000563286 00

3

2

56

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ITEM NO. PART NO. DESCRIPTION MODEL

CONTROLS (CONTINUED)

1 100277781* INTEGRATED CONTROL BOARD (BEGINNING SERIAL #1540) FB 751-1251
1 100277770* INTEGRATED CONTROL BOARD (BEGINNING SERIAL #1540) FB 1501-2001
2 100311232 GASKET, USER INTERFACE DISPLAY ALL
3
4 100208481* LOW VOLTAGE CONTROL BOARD ALL
5 100208476* LOW VOLTAGE CONTROL BOARD ALL
6 100208552* SENSOR, SYSTEM / INLET ALL
7 100208557* SENSOR, DUAL OUTLET ALL
8 100208558* SENSOR, PREMIX THERMOSTAT LIMIT ALL
9

10

- 100233613 BULBWELL, SENSOR, PREMIX TSTAT LIMIT ALL
11 100073294 FAN ASSEMBLY FB 751-1251
11 100267460 FAN ASSEMBLY FB 1501-2001

12 100208089* GASKET, FAN FB 751-1251
12 100277796* GASKET, FAN FB 1501-2001
13 100277772* PRESSURE SWITCH - 4.1" WATER COLUMN ALL
14 100289704* PRESSURE SWITCH - 5.8" WATER COLUMN FB 751-1251
14 100289706* PRESSURE SWITCH - 2.5" WATER COLUMN FB 1501-2001
15 100208385* PRESSURE SWITCH - 3.0" WATER COLUMN ALL
16 100274744* PRESSURE SWITCH - 27.0" WATER COLUMN ALL
17 100208509* RELAY, 120VAC, 60HZ, 10.8 AMP ALL
18 100277797 MOMENTARY SWITCH, RED - 20 AMP, 125 VOLT ALL
19 100277798 MOMENTARY SWITCH, BLACK - 20 AMP, 125 VOLT ALL
20 100271316 ON / OFF SWITCH, RED ALL
21 100208230 TRANSFORMER, 24V, 40VA ALL
22 100274743 TRANSFORMER, SPARK ALL
23
24 100173747 LOW WATER CUTOFF, MANUAL RESET ALL
25

- 100277801 BOOT, LWCO ALL

26 100073358 GAS VALVE ASSEMBLY, NAT - SMALL FB 751
26 100073359 GAS VALVE ASSEMBLY, NAT - SMALL FB 1001
26 100073360 GAS VALVE ASSEMBLY, NAT - SMALL (SERIES 100 & 101) FB 1251
26 100267412 GAS VALVE ASSEMBLY, NAT - SMALL (SERIES 100 & 101) FB 1501
26 100267413 GAS VALVE ASSEMBLY, NAT - SMALL (SERIES 100 & 101) FB 1751
26 100267414 GAS VALVE ASSEMBLY, NAT - SMALL (SERIES 100 & 101) FB 2001
26 100310375 GAS VALVE ASSEMBLY, NAT - SMALL (SERIES 110 & 111) FB 1251-2001
26 100073364 GAS VALVE ASSEMBLY, LP - SMALL FB 751
26 100073365 GAS VALVE ASSEMBLY, LP - SMALL FB 1001
26 100073366 GAS VALVE ASSEMBLY, LP - SMALL (SERIES 100 & 101) FB 1251
26 100267415 GAS VALVE ASSEMBLY, LP - SMALL (SERIES 100 & 101) FB 1501
26 100267416 GAS VALVE ASSEMBLY, LP - SMALL (SERIES 100 & 101) FB 1751
26
26
27 100073370 GAS VALVE ASSEMBLY, NAT - LARGE FB 751
27 100073371 GAS VALVE ASSEMBLY, NAT - LARGE FB 1001
27 100073372 GAS VALVE ASSEMBLY, NAT - LARGE (SERIES 100 & 101) FB 1251
27 100267418 GAS VALVE ASSEMBLY, NAT - LARGE (SERIES 100 & 101) FB 1501
27 100267419 GAS VALVE ASSEMBLY, NAT - LARGE (SERIES 100 & 101) FB 1751
27 100310377 GAS VALVE ASSEMBLY, NAT - LARGE (SERIES 110 & 111) FB 1251-1751
27 100267420 GAS VALVE ASSEMBLY, NAT - LARGE (SERIES 100 & 101) FB 2001
27 100171973 GAS VALVE ASSEMBLY, NAT - LARGE (SERIES 110 & 111) FB 2001
27 100073549 GAS VALVE ASSEMBLY, LP - LARGE FB 751
27
27
27 100267421 GAS VALVE ASSEMBLY, LP - LARGE (SERIES 100 & 101) FB 1501
27 100267422 GAS VALVE ASSEMBLY, LP - LARGE (SERIES 100 & 101) FB 1751
27 100310377 GAS VALVE ASSEMBLY, LP - LARGE (SERIES 110 & 111) FB 1251-1751
27 100267423 GAS VALVE ASSEMBLY, LP - LARGE (SERIES 100 & 101) FB 2001

27 100171973 GAS VALVE ASSEMBLY, LP - LARGE (SERIES 110 & 111) FB 2001
28 100208105* GASKET, GAS VALVE / VENTURI (SERIES 100 & 101) ALL
28 100113072* GASKET, GAS VALVE / VENTURI (SERIES 110 & 111) ALL
29 100289499* GASKET, GAS TRAIN (SERIES 100 & 101) ALL
30 100289500* GASKET, GAS TRAIN (SERIES 100 & 101) ALL
31 100289501* GASKET, GAS TRAIN (SERIES 100 & 101) ALL

100311038 DISPLAY INTERFACE ASSEMBLY ALL

100271315* HIGH LIMIT ALL
100233695* BULBWELL, SYSTEM / INLET / OUTLET ALL

100275047 BACNET BOARD (BEGINNING SERIAL #1540) ALL

100277756 PROBE, LWCO ALL

GAS TRAIN ASSEMBLIES

100267417 GAS VALVE ASSEMBLY, LP - SMALL (SERIES 100 & 101) FB 2001
100310375 GAS VALVE ASSEMBLY, LP - SMALL (SERIES 110 & 111) FB 1251-2001

100073550 GAS VALVE ASSEMBLY, LP - LARGE FB 1001
100073551 GAS VALVE ASSEMBLY, LP - LARGE (SERIES 100 & 101) FB 1251

PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS

*ITEMS DENOTE SUGGESTED INVENTORY PARTS

FBII-RP_100207789_2000004589_Rev N

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ITEM NO. PART NO. DESCRIPTION MODEL

GAS TRAIN ASSEMBLIES (CONTINUED)

32 100294593 1-1/4" GAS SHUT-OFF VALVE W/ TAP (SERIES 100 & 101) FB 751-1251
32 100288549 1-1/2" GAS SHUT-OFF VALVE W/ TAP (SERIES 100 & 101) FB 1501-2001
32 100113073 1-1/2" GAS SHUT-OFF VALVE W/ TAP (SERIES 110 & 111) FB 1251-2001
33 100208089* GASKET, VENTURI ALL
34 100288548 VALVE, VENTURI FB 751
34 100288481 VALVE, VENTURI FB 1001-1251
34 100294592 VALVE, VENTURI FB 1501-1751
34 100274223 VALVE, VENTURI FB 2001
35 100287996 FLANGE, GAS VALVE, 3/4 NPT, 90 DEG (SERIES 110 & 111) FB 1251-2001
36 100310379 FLANGE, GAS VALVE, 1-1/2 NPT, DUNGS (SERIES 110 & 111) FB 1251-1751
37 100310376 SHUTTER, GAS VALVE, 1 NPT (SERIES 110 & 111) FB 1251-1751
37 100274758 SHUTTER, GAS VALVE, 1-1/2 NPT (SERIES 110 & 111) FB 2001
38 100310378 CONNECTOR, DUNGS, GAS VALVE (SERIES 110 & 111) FB 1251-2001

PILOT AND BURNER ASSEMBLIES

39 100073343* SENSOR, FLAME W/ GASKET ALL
40 100233664 GASKET, FLAME SENSOR ALL
41 100073342* IGNITOR W/ GASKET FB 751-1251
41 100265150* IGNITOR W/ GASKET FB 1501-2001
42 100279407* FLAME SENSOR, REAR, W/ GASKET & SCREWS ALL
43 100233662 GASKET, IGNITOR ALL
44 100072640 BURNER W/ GASKET FB 751
44 100072641 BURNER W/ GASKET FB 1001
44 100073280 BURNER W/ GASKET FB 1251
44 100073281 BURNER W/ GASKET FB 1501
44 100073282 BURNER W/ GASKET FB 1751
44 100073283 BURNER W/ GASKET FB 2001
45 100277963* GASKET, BURNER ALL
46 100073768 GAS/AIR MANIFOLD W/ GASKET FB 751-1251
46 100073794 GAS/AIR MANIFOLD W/ GASKET FB 1501-2001
47 100288523 COVER, MANIFOLD ALL
48 100277962* GASKET, MANIFOLD COVER ALL
49 100075411 HEAT EXCHANGER DOOR ASSEMBLY FB 751
49 100075413 HEAT EXCHANGER DOOR ASSEMBLY FB 1001
49 100076515 HEAT EXCHANGER DOOR ASSEMBLY FB 1251
49 100267481 HEAT EXCHANGER DOOR ASSEMBLY FB 1501
49 100267482 HEAT EXCHANGER DOOR ASSEMBLY FB 1751
49 100267483 HEAT EXCHANGER DOOR ASSEMBLY FB 2001
50 100161834 AIR METERING VALVE FB 751
50 100161835 AIR METERING VALVE FB 1001
50 100161837 AIR METERING VALVE FB 1251
50 100161836 AIR METERING VALVE FB 1501-1751
50 100161838 AIR METERING VALVE FB 2001

MISCELLANEOUS

51 100163214 SIGHT GLASS KIT ALL
52 100288672 FIBERBOARD, BURNER FB 751
52 100288673 FIBERBOARD, BURNER FB 1001
52 100288674 FIBERBOARD, BURNER FB 1251
52 100288675 FIBERBOARD, BURNER FB 1501
52 100288676 FIBERBOARD, BURNER FB 1751
52 100288677 FIBERBOARD, BURNER FB 2001
53 100288679 INSULATION, HEX WRAP FB 751
53 100288680 INSULATION, HEX WRAP FB 1001
53 100288681 INSULATION, HEX WRAP FB 1251
53 100288682 INSULATION, HEX WRAP FB 1501
53 100288683 INSULATION, HEX WRAP FB 1751
53 100289400 INSULATION, HEX WRAP FB 2001
54 100233667 GASKET, SIGHT GLASS ALL
55 100153531 AIR INLET COVER ALL
56 100163269 DISPLAY MOUNTING PLATE ALL
57 100289541 TOP BEZEL ALL
58 100289540 DISPLAY BEZEL ALL

PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS

*ITEMS DENOTE SUGGESTED INVENTORY PARTS

FBII-RP_100207789_2000004589_Rev N

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ITEM NO. PART NO. DESCRIPTION MODEL

MISCELLANEOUS (CONTINUED)

59 100208448 PRESSURE RELIEF VALVE, 1" X 1-1/4", 50 PSI ALL
60 100208153 GAUGE, T&P, 0-75 PSI, 50-320F, 3", 1/2 NPT ALL
61 100208561* SENSOR, FLUE TEMP ALL
62 100277775 GAS CUT OFF VALVE 1 1/2" ALL
63 100277718 CONDENSATE TRAP ALL
64 100289492* KIT, GASKET SET (SIGHT GLASS / AIR MANIFOLD / HEX PLATE) FB 751
64 100289493* KIT, GASKET SET (SIGHT GLASS / AIR MANIFOLD / HEX PLATE) FB 1001
64 100289494* KIT, GASKET SET (SIGHT GLASS / AIR MANIFOLD / HEX PLATE) FB 1251
64 100289495* KIT, GASKET SET (SIGHT GLASS / AIR MANIFOLD / HEX PLATE) FB 1501
64 100289496* KIT, GASKET SET (SIGHT GLASS / AIR MANIFOLD / HEX PLATE) FB 1751
64 100289497* KIT, GASKET SET (SIGHT GLASS / AIR MANIFOLD / HEX PLATE) FB 2001
65 100289433* AIR FILTER, 1" X 14" X 14" FB 751-1251
65 100289435* AIR FILTER, 1" X 16" X 20" FB 1501-2001
66 100277806 USB CABLE ALL

- 100277807* GASKET, AIR INLET COVER ALL

- 100294590 PLATE ASSEMBLY, INLET ADAPTER ALL

- 100276810 CABLE, RIBBON ALL

- 100208633 WIRE HARNESS, SPARK ELECTRODE ALL

- 100208631 WIRE HARNESS, FLAME SENSOR ELECTRODE ALL

- 100208808* FUSE, 1.25A / 250V ALL

- 100208231* FUSE, 3.15A / 250V ALL

- 100208232* FUSE, 5A / 250V ALL

- 100208834 OUTDOOR AIR SENSOR ALL

- 100277791 CONDENSATE HOSE, BRAIDED, 3/8" ALL

- 100277792 CONDENSATE HOSE, BRAIDED, 1" ALL

- 100274793 REFERENCE HOSE, 1/8" (ORDER BY FOOT) ALL

- 100208336 ALUMINUM TUBING, 1/4" ALL

- 100232751 DOOR CATCH ALL

- 100232688 DOOR STRIKE ALL

- 100274737 ANTENNA, USB ADAPTER, WIRELESS (BEGINNING SERIAL #1540) ALL

- 100289696 CABLE, USB, 2.0, 12" (BEGINNING SERIAL #1540) ALL

- 100289697 CABLE, USB, 2.0, 60" (BEGINNING SERIAL #1540) ALL

- 100288513 PANEL MOUNTING CABLE (BEGINNING SERIAL #1540) ALL

- 100269755 KIT, RE-SPARK RETROFIT (PRIOR TO SERIAL #1540) FB 751-1251

- 100269756 KIT, RE-SPARK RETROFIT (PRIOR TO SERIAL #1540) FB 1501-2001

JACKET ASSEMBLIES

67 100161436 JACKET, OUTER TOP FB 751
67
67 100161437 JACKET, OUTER TOP FB 1251

- 100068797 JACKET, TOP, OUTER, MIDDLE FB 1501

- 100190521 JACKET, TOP, OUTER, FRONT FB 1751

- 100190822 JACKET, TOP, OUTER, REAR FB 2001

68 100161426 JACKET, OUTER FRONT LOWER DOOR ALL
69 100161435 JACKET, OUTER FRONT UPPER DOOR ALL
70 100161439 JACKET, OUTER LEFT & RIGHT SIDE FB 751-1251
70 100267484 JACKET, OUTER LEFT & RIGHT SIDE FB 1501-2001
71 100161427 CONTROL PANEL COVER ALL

100161428 JACKET, OUTER TOP FB 1001

PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS

*ITEMS DENOTE SUGGESTED INVENTORY PARTS

FBII-RP_100207789_2000004589_Rev N

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Notes

FBII-RP_100207789_2000004589_Rev N

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Notes

FBII-RP_100207789_2000004589_Rev N

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FBII-RP_100207789_2000004589_Rev N

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© 11/18 - Printed in U.S.A.