Lochinvar OKN400, OKN501, OKN601, OKN701, OKN801 User Manual

OKBX-RP_100161609_2000015637_Rev G

Replacement Parts List

PARTS & SERVICE DEPARTMENT

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

[e-mail]
www.Lochinvar.com

45

Outdoor Knight XL

Heating Boilers

OK 400 thru 801

46

51

43

44

53

49

52

40

53

39

34

IMG00434

50

4

35

38

48

41

42

47

33

36

IMG00435

GAS TRAIN 400

14

12

9

16

GAS TRAIN 501

GAS TRAIN 601-801

11

HEAT EXCHANGER 400-801

1

17

10

IMG00429

14

12

15

17

16

10

9

IMG00430

17

16

9

12

13

14

14

IMG00431

CONTROL
PANEL

29

2

8

30

27

28

6

7

31

32

26

25

21

20

19

18

22

23

24

24

5

3

37

24

IMG00949

ITEM NO. PART NO. DESCRIPTION MODEL

HEAT EXCHANGER ASSEMBLY

1 100147457 HEAT EXCHANGER - ASME - H STAMP 399 MBH OK 400
1 100147458 HEAT EXCHANGER - ASME - H STAMP 500 MBH OK 501
1 100147460 HEAT EXCHANGER - ASME - H STAMP 600 MBH OK 601
1 100147461 HEAT EXCHANGER - ASME - H STAMP 700 MBH OK 701
1 100147462 HEAT EXCHANGER - ASME - H STAMP 800 MBH OK 801

CONTROLS

2 100208459* LOW VOLTAGE CONNECTION BOARD ALL
3 100167823* INTEGRATED CONTROL BOARD, BEGINNING SERIAL H10 OK 400
3 100167794* INTEGRATED CONTROL BOARD, PRIOR TO H10 OK 501
3 100167825* INTEGRATED CONTROL BOARD, BEGINNING SERIAL H10 OK 601 - 801
4 100208458* USER INTERFACE CONTROL ALL

- 100289522 OVERLAY LABEL, USER INTERFACE ALL
5 100208493* PUMP RELAY BOARD, 1.5 HP ALL
6 100208549* INLET SENSOR ALL
7 100208544* OUTLET SENSOR ALL

PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS

*ITEMS DENOTE SUGGESTED INVENTORY PARTS

OKBX-RP_100161609_2000015637_Rev G

2 of 4

ITEM NO. PART NO. DESCRIPTION MODEL

CONTROLS (CONTINUED)

8 100167445 AIR VENT VALVE ALL
9 100145008 FAN ASSEMBLY OK 400
9 100145009 FAN ASSEMBLY OK 501

9 100144980 FAN ASSEMBLY OK 601 - 801
10 100208101* GASKET, FAN / AIR ARM OK 400
10 100208759* GASKET, FAN / AIR ARM OK 501
11 100208089* GASKET, FAN / VENTURI OK 601-801

GAS VALVES

12 100172006 GAS VALVE ASSEMBLY OKN400
12 100172009 GAS VALVE ASSEMBLY NAT OKN501
12 100172014 GAS VALVE ASSEMBLY NAT OKN601
12 100171923 GAS VALVE ASSEMBLY NAT OKN701
12 100172015 GAS VALVE ASSEMBLY NAT OKN801
12 100171928 GAS VALVE ASSEMBLY LP OKL501
12 100171929 GAS VALVE ASSEMBLY LP OKL601
12 100171930 GAS VALVE ASSEMBLY LP OKL701
12 100171931 GAS VALVE ASSEMBLY LP OKL801
13 100208105* GASKET, GAS VALVE / VENTURI OK 601 - 801
14 100276366 GAS CUT OFF VALVE 1" ALL
15 100277803 GAS CUT OFF VALVE 3/4" OK 501
16 100208761 GASKET, VENTURI OK 400
16 100233703 GASKET, AIR SHROUD OK 501
16 100233694 GASKET, VENTURI OK 601 - 801
17 100163225 AIR INLET KIT OK 400
17 100163226 AIR INLET KIT OK 501
17 100163227 AIR INLET KIT OK 601-801

PILOT & BURNER ASSEMBLIES

18 100165930* FLAME SENSOR W/ GASKET OK 400/501
18 100165931* FLAME SENSOR W/ GASKET OK 601 - 801
19 100208091* GASKET, FLAME SENSOR ALL
20 100165929* IGNITOR W/ GASKET OK 400/501
20 100165920* IGNITOR W/ GASKET OK 601 - 801
21 100208086* GASKET, IGNITOR ALL
22 100135311 BURNER ASSEMBLY W/ GASKET OK 400/501
22 100135313 BURNER ASSEMBLY W/ GASKET OK 601
22 100135314 BURNER ASSEMBLY W/ GASKET OK 701
22 100135315 BURNER ASSEMBLY W/ GASKET OK 801
23 100208085* GASKET, BURNER OK 400/501
23 100233594* GASKET, BURNER OK 601 - 801
24 100173792 GAS/AIR ARM ASSEMBLY W/GASKET OK 400
24 100173793 GAS/AIR ARM ASSEMBLY W/GASKET OK 501
24 100173798 GAS/AIR ARM ASSEMBLY W/GASKET OK 601 - 801
25 100173794 HEAT EXCHANGER ACCESS DOOR KIT OK 400/501
25 100173799 HEAT EXCHANGER ACCESS DOOR KIT OK 601 - 801
26 100276374* HEX DOOR TEMP SWITCH, BEGINNING SERIAL #F14 ALL

MISCELLANEOUS

27 100163249 SIGHT GLASS KIT ALL
28 100208762 GASKET, SIGHT GLASS ALL
29 100208502 RELAY, 1.5 HP PUMP ALL
30 100208061 DIVIDER PLATE, INSULATION BAFFLE ALL
31 100208060 BURNER PLATE, INSULATION, DOOR OK 400/501
31 100208059 BURNER PLATE, INSULATION, DOOR OK 601 - 801
32 100208088* GASKET, RUBBER DOOR OK 400/501
32 100208093* GASKET, RUBBER DOOR OK 601 - 801
33 100276379 LEVELING LEGS ALL

34 100163244 CONDENSATE TRAP ALL

- 100208243* BLOCKED DRAIN SWITCH ALL
35 100208242 ON/OFF SWITCH W/ I-O SYMBOL ALL
36 100208378* PRESSURE SWITCH, 4.1" WATER COLUMN OK 400
36 100208383* PRESSURE SWITCH, 5.3" WATER COLUMN OK 501
36 100208382* PRESSURE SWITCH, 6.2" WATER COLUMN OK 601-801
37 100208230 TRANSFORMER, 24V, 40VA OK 400 - 701
37 100208246 TRANSFORMER, 24V, 60VA OK 801
38 100277824 FLUTED KNOB W/ SKIRT ALL
39 100208454 RELIEF VALVE, 3/4", 50 PSI OK 400-601
39 100208442 PRESSURE RELIEF VALVE, 3/4", 50 PSI OK 701/801

PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS

*ITEMS DENOTE SUGGESTED INVENTORY PARTS

3 of 4OKBX-RP_100161609_2000015637_Rev G

ITEM NO. PART NO. DESCRIPTION MODEL

MISCELLANEOUS

40 100289568 4" WALL STRAP OK 400-601
40 100289645 6" WALL STRAP OK 701 & 801
41 100289570 DOOR LATCH ALL

- 100289644 LATCH RETAINER ALL
42 100289643 DOOR LATCH RECEPTACLE ALL
43 100288433 4" ELBOW, 90 DEG, POLYPRO OK 400-601
43 100288583 6" ELBOW, 90 DEG, SS OK 701 & 801
44 100288434 4" X 36" POLYPRO GREEN VENT PIPE OK 400-601
44 100288584 6" STAINLESS STEEL FLUE VENT PIPE OK 701 & 801
45 100289673 6" STAINLESS STEEL VENT TERMINATION OK 701 & 801

- 100233684 GASKET STRIP, AIR INLET & FLUE ALL

- 100208097 GASKET, ESCUTCHEON, 3/4" CONDENSATE TRAP ALL

- 100208097 GASKET, ESCUTCHEON, 3/4" GAS CONNECTION OK501

- 100208090 GASKET, ESCUTCHEON, 1" GAS CONNECTION OK 400, 601-801

- 100278141 GASKET, ESCUTCHEON, 2" WATER CONNECTION ALL

- 100278141 GASKET, ESCUTCHEON, 2" AIR INLET OK 400

- 100289476 GASKET, ESCUTCHEON, 4" AIR INLET OK601-801

- 100208808* FUSE, 1.25A / 250V ALL

- 100208231* FUSE, 3.15A / 250V ALL

- 100208232* FUSE, 5A / 250V ALL

- 100208661* FLOW SWITCH W/ #3 PADDLE ALL

- 100276804* EIGHT POSITION TERMINAL STRIP ALL

- 100208834 OUTDOOR AIR SENSOR ALL

- 100208152* GAUGE TRIOMETER, 75# PSI ALL

- 100170642* FLUE TEMP SENSOR KIT ALL

- 100208552* SYSTEM SENSOR ALL

- 100208569* BULBWELL 1/4" ALL

- 100173773* LOW WATER CUT-OFF W/ MANUAL RESET ALL

- 100157719 ALARM BELL ALL

- 100159011 LP CONVERSION KIT OK 400

- 100159012 LP CONVERSION KIT (AFTER SERIAL #J07 FOR OK 500) OK 501-801

- 100148402 HEAT EXCHANGER OVER-TEMP SWITCH ALL

- 100288486 WIRE HARNESS, POWER ALL

- 100208625 WIRE HARNESS, CONNECTION BOARD ALL

- 100072937 WIRE HARNESS, UNIT ALL

- 100288496 WIRE HARNESS,ON/OFF OK 400

- 100288497 WIRE HARNESS,ON/OFF OK 501-801

- 100208618 WIRE HARNESS, SPARK ELECTRODE OK400/501

- 100208623 WIRE HARNESS, SPARK ELECTRODE OK 601-801

- 100208637 WIRE HARNESS, GAS VALVE OK 400

- 100272817 WIRE HARNESS, GAS VALVE OK 501

- 100276403 WIRE HARNESS, GAS VALVE OK 601-801

- 100208622 WIRE HARNESS, FLAME SENSOR ELECTRODE ALL

- 100208638 CABLE, RIBBON ALL
46 100149709 JACKET, TOP OK 400

46 100149710 JACKET, TOP OK 501
46 100149711 JACKET, TOP OK 601
46 100149712 JACKET, TOP OK 701
46 100149713 JACKET, TOP OK 801
47 100149708 JACKET, FRONT, LOWER OK 400-801
48 100149714 JACKET, FRONT, UPPER ALL
49 100149717 JACKET, LEFT SIDE OK 400
49 100149718 JACKET, LEFT SIDE OK 501
49 100149719 JACKET, LEFT SIDE OK 601
49 100149720 JACKET, LEFT SIDE OK 701
49 100149721 JACKET, LEFT SIDE OK 801
50 100150714 JACKET, RIGHT SIDE OK 400
50 100150709 JACKET, RIGHT SIDE OK 501
50 100150590 JACKET, RIGHT SIDE OK 601
50 100150717 JACKET, RIGHT SIDE OK 701
50 100150619 JACKET, RIGHT SIDE OK 801
51 100150750 COVER, AIR INLET BOX TOP OK 400
51 100150611 COVER, AIR INLET BOX TOP OK 501-801
52 100149745 COVER, AIR INLET BOX OK 400
52 100149746 COVER, AIR INLET BOX OK 501-801
53 100150597 COVER, FLUE BOX OK 400-601
53 100150666 COVER, FLUE BOX OK 701/801
54 100149715 COVER, FLUE BOX TOP OK 400-601
54 100149716 COVER, FLUE BOX TOP OK 701/801

PLEASE HAVE SERIAL NUMBER WHEN ORDERING PARTS

*ITEMS DENOTE SUGGESTED INVENTORY PARTS

OKBX-RP_100161609_2000015637_Rev G

JACKET ASSEMBL Y

4 of 4

©01/18-Printed in U.S.A.