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100369149_2000625604_Rev C
Replacement Parts List
PARTS & SERVICE DEPARTMENT
Nashville, Tennessee
877-554-5544 • Fax: 615-882-2918
parts_team@lochinvar.com
www.Lochinvar.com
UNIT
FTX400 - 850 N/L SERIES 100 / 110
36
39
38
46
FTXL
®
Heating Boilers
FTX400 - 1000(N/L)
37
9
43
7
61
60
2000610401 01
47
40
42
59
41
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UNIT
FTX400 - 850 N/L SERIES 120
FTX1000 N/L SERIES 110
38
39
46
62
36
2000610400 00
7
61
60
47
42
59
40
41
100369149_2000625604_Rev C
2000787101 00
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CONTROL PANEL
8
12
10
HEAT EXCHANGER
(FTX400-850)
11
19
35
25
26
17
18
32
30
27
28
34
33
14
53
29
4
6
31
48
44
5
HEAT EXCHANGER
(FTX1000)
32
30
53
51
52
2000610401 01
29
48
44
1
51
3
13
45
4
6
2
IMG01022
31
GAS TRAIN
(FTX400 - 500 N/L)
14
5
1
22
23
56
55
54
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45
16
49
50 24
13
20
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GAS TRAIN
(FTX600 - 850 N/L)
15
22
16
58
21
24
23
57
54
55
55
54
GAS TRAIN
(FTX1000 N/L)
20
2000610401 01
23
22
58
15
16
ITEM NO. PART NO. DESCRIPTION MODEL
HEAT EXCHANGER ASSEMBLY
1 100188998 HEAT EXCHANGER COMPLETE FTX400
1 100188999 HEAT EXCHANGER COMPLETE FTX500-600
1 100189000 HEAT EXCHANGER COMPLETE FTX725
1 100189001 HEAT EXCHANGER COMPLETE FTX850
1 100341241 HEAT EXCHANGER COMPLETE FTX1000
2 100189002 HEAT EXCHANGER FLUE COLLECTOR FTX400-600
2 100189003 HEAT EXCHANGER FLUE COLLECTOR FTX725-850
3 100288873* FLUE / HEAT EXCHANGER GASKET FTX400-600
3 100288874* FLUE / HEAT EXCHANGER GASKET FTX725-850
- 100301815 FLUE GASKET, 4" MODELS FTX400-600
- 100301832 FLUE GASKET, 6" MODELS FTX725-1000
4 100288875 BOLT, HEX ALL
5 100288876 NUT, HEX ALL
6 100288904 WASHER, HEX FTX 400-600
6 100288905 WASHER, HEX FTX725-850
6 100341242 WASHER, HEX FTX1000
CONTROLS
7 100277838* LOW VOLTAGE CONNECTION BOARD ALL
8 100189280* INTEGRATED CONTROL BOARD - SERIES 100/110 FTX400
8 100189281* INTEGRATED CONTROL BOARD - SERIES 100/110 FTX500
8 100189282* INTEGRATED CONTROL BOARD - SERIES 100/110 FTX600
8 100189283* INTEGRATED CONTROL BOARD - SERIES 100/110 FTX725
8 100189284* INTEGRATED CONTROL BOARD - SERIES 100/110 FTX850
8 100189285 INTEGRATED CONTROL BOARD - HIGH ALTITUDE - SERIES 100/110 FTX400
8 100189286 INTEGRATED CONTROL BOARD - HIGH ALTITUDE - SERIES 100/110 FTX500
8 100189287 INTEGRATED CONTROL BOARD - HIGH ALTITUDE - SERIES 100/110 FTX600
PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS
100369149_2000625604_Rev C
*ITEMS DENOTE SUGGESTED INVENTORY PARTS
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20
21
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ITEM NO. PART NO. DESCRIPTION MODEL
CONTROLS (CONTINUED)
8 100189288 INTEGRATED CONTROL BOARD - HIGH ALTITUDE - SERIES 100/110 FTX725
8 100189289 INTEGRATED CONTROL BOARD - HIGH ALTITUDE - SERIES 100/110 FTX850
8 100367719 INTEGRATED CONTROL BOARD - SERIES 120 FTX400
8 100367743 INTEGRATED CONTROL BOARD - SERIES 120 FTX500
8 100367744 INTEGRATED CONTROL BOARD - SERIES 120 FTX600
8 100367745 INTEGRATED CONTROL BOARD - SERIES 120 FTX725
8 100367746 INTEGRATED CONTROL BOARD - SERIES 120 FTX850
8 100346582 INTEGRATED CONTROL BOARD FTX1000
8 100367747 INTEGRATED CONTROL BOARD - HIGH ALTITUDE - SERIES 120 FTX400
8 100367748 INTEGRATED CONTROL BOARD - HIGH ALTITUDE - SERIES 120 FTX500
8 100367749 INTEGRATED CONTROL BOARD - HIGH ALTITUDE - SERIES 120 FTX600
8 100367750 INTEGRATED CONTROL BOARD - HIGH ALTITUDE - SERIES 120 FTX725
8 100367811 INTEGRATED CONTROL BOARD - HIGH ALTITUDE - SERIES 120 FTX850
8 100346588 INTEGRATED CONTROL BOARD - HIGH ALTITUDE FTX1000
9 100278134* USER INTERFACE CONTROL - SERIES 100/110 FTX400-850
10 100208493* PUMP RELAY BOARD, 1.5 HP ALL
11 100208502* RELAY, 1.5 HP PUMP ALL
12 100208509* RELAY, 120VAC, 60HZ, 10.8 AMP ALL
13 100208549* INLET SENSOR ALL
14 100208544* OUTLET SENSOR/ HIGH LIMIT ALL
15 100188879 FAN ASSEMBLY FTX400
15 100188878 FAN ASSEMBLY FTX500
15 100188877 FAN ASSEMBLY FTX600-850
15 100341245 FAN ASSEMBLY FTX1000
16 100288877 GASKET, FAN FTX400-500
16 100288878 GASKET, FAN FTX600-1000
17 100277798 MOMENTARY SWITCH, BLACK - 20 AMP, 125 VOLT ALL
18 100277797 MOMENTARY SWITCH, RED - 20 AMP, 125 VOLT ALL
19 100277771 MODBUS INTERFACE BOARD-MTR-01 ALL
GAS VALVES
20 100189393 GAS VALVE ASSEMBLY NAT & LP FTX400
20 100189392 GAS VALVE ASSEMBLY NAT & LP FTX500
20 100189391 GAS VALVE ASSEMBLY NAT FTX600
20 100189390 GAS VALVE ASSEMBLY NAT FTX725
20 100189389 GAS VALVE ASSEMBLY NAT FTX850
20 100341246 GAS VALVE ASSEMBLY NAT FTX1000
20 100189388 GAS VALVE ASSEMBLY LP FTX600
20 100189387 GAS VALVE ASSEMBLY LP FTX725
20 100189386 GAS VALVE ASSEMBLY LP FTX850
20 100341248 GAS VALVE ASSEMBLY LP FTX1000
21 100277803 GAS CUT OFF VALVE 3/4" FTX500
21 100288546 GAS CUT OFF VALVE 1" FTX600-850
21 100294593 GAS CUT OFF VALVE 1.25″ FTX1000
22 100208761* GASKET, FAN / VENTURI FTX400-500
22 100233705* GASKET, FAN / VENTURI FTX600-1000
23 100278070 VENTURI ASSEMBLY - NATURAL FTX400-500
23 100288545 VENTURI ASSEMBLY - LP FTX400-500
23 100288547 VENTURI ASSEMBLY FTX600
23 100288879 VENTURI ASSEMBLY FTX725-850
23 100359326 VENTURI ASSEMBLY - NATURAL - SERIES 110 FTX1000
23 100359328 VENTURI ASSEMBLY - LP - SERIES 110 FTX1000
24 100375766 GAS VALVE FLANGE W/ GASKET FTX400
24 100288880 GASKET, GAS VALVE FTX500
24 100288891 GASKET, GAS VALVE FTX600-850
PILOT & BURNER ASSEMBLIES
25 100165923* FLAME SENSOR W/ GASKET ALL
26 100233664 GASKET, FLAME SENSOR ALL
27 100165924* IGNITOR W/ GASKET ALL
28 100233662 GASKET, IGNITOR ALL
PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS
*ITEMS DENOTE SUGGESTED INVENTORY PARTS
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ITEM NO. PART NO. DESCRIPTION MODEL
PILOT & BURNERS ASSEMBLIES (CONTINUED)
29 100188648 BURNER W/ GASKET FTX400
29 100188649 BURNER W/ GASKET FTX500-600
29 100188650 BURNER W/ GASKET FTX725-850
29 100341244 BURNER W/ GASKET FTX1000
30 100288892* GASKET, BURNER FTX400-600
30 100288893* GASKET, BURNER FTX725-1000
31 100189410 HEAT EXCHANGER DOOR ASSEMBLY FTX400-600
31 100189409 HEAT EXCHANGER DOOR ASSEMBLY FTX725-850
31 100341258 HEAT EXCHANGER DOOR ASSEMBLY FTX1000
32 100189408 PLATE, FAN HEAT EXCHANGER ASSEMBLY FTX400-500
32 100189407 PLATE, FAN HEAT EXCHANGER ASSEMBLY FTX600
32 100189406 PLATE, FAN HEAT EXCHANGER ASSEMBLY FTX725-850
32 100341259 PLATE, FAN HEAT EXCHANGER ASSEMBLY FTX1000
MISCELLANEOUS
33 100274750 SIGHT GLASS ALL
34 100274752 GASKET, SIGHT GLASS - WHITE ALL
35 100189215 KIT, SIGHT GLASS W/ GASKETS ALL
36 100189217 DISPLAY BEZEL ASSEMBLY - SERIES 100/110 FTX400 - 850
36 100381515 DISPLAY BEZEL ASSEMBLY - SERIES 110/120 FTX400 - 1000
37 100278236 DISPLAY BEZEL - SERIES 100/110 FTX400 - 850
38 100288909 BEZEL PROP ROD ALL
39 100288910 HINGE SPRING ALL
40 100277718 CONDENSATE TRAP (PRIOR TO SERIAL #1741) FTX400 - 850
40 100284709 CONDENSATE TRAP (BEGINNING SERIAL #1741) ALL
41 100288163 HOSE, CONDENSATE ALL
42 100208246 TRANSFORMER, 24V, 60VA ALL
43 100277824 FLUTED KNOB W/ SKIRT - SERIES 100/110 FTX400 - 850
44 100288908* HEAT EXCHANGER GASKET SET FTX400 - 600
44 100288921* HEAT EXCHANGER GASKET SET FTX725 - 850
44 100341260* HEAT EXCHANGER GASKET SET FTX1000
45 100208561* SENSOR, FLUE TEMP ALL
46 100288894 TOP INSULATION FTX400-500
46 100288895 TOP INSULATION FTX600
46 100288896 TOP INSULATION FTX725-850
46 100341262 TOP INSULATION FTX1000
47 100288897 BLANKET INSULATION FTX400-600
47 100288898 BLANKET INSULATION FTX725-850
47 100341263 BLANKET INSULATION FTX1000
48 100288927 BURNER FIBERBOARD FTX400-600
48 100288928 BURNER FIBERBOARD FTX725-850
48 100341264 BURNER FIBERBOARD FTX1000
49 100278091 UNION ADAPTER FTX400-500
50 100288899 1" DONUT GASKET FTX400-500
51 100309672 PROBE, LOW WATER CUT-OFF ALL
52 100276822* LOW WATER CUT-OFF - AUTO / MANUAL RESET ALL
53 100167445 AIR VENT VALVE ALL
54 100189214 AIR INLET KIT FTX400-500
54 100189213 AIR INLET KIT FTX600-850
54 100341266 AIR INLET KIT FTX1000
55 100288558 COUPLING, AIR INLET, 3" X 4" FTX400-850
55 100375765 COUPLING, AIR INLET, 5" X 6" FTX1000
56 100275561 AIR INLET COUPLING, 2" X 3", W/ CLAMPS FTX400-500
57 100208089 GASKET, VENTURI INLET FTX600-850
57 100341267 GASKET, VENTURI INLET FTX1000
58 100208105 GASKET, GAS VALVE / VENTURI FTX600-1000
−
−
−
−
100208242 ON / OFF SWITCH W/ I-O SYMBOL ALL
100208454 RELIEF VALVE, 3/4", 50 PSI FTX400-600
100208442 PRESSURE RELIEF VALVE, 3/4", 50 PSI FTX725-1000
100208834 OUTDOOR AIR SENSOR ALL
PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS
*ITEMS DENOTE SUGGESTED INVENTORY PARTS
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ITEM NO. PART NO. DESCRIPTION MODEL
MISCELLANEOUS (CONTINUED)
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
59 100189062 JACKET, OUTER FRONT - SERIES 100/110 FTX400-850
59 100367815 JACKET, OUTER FRONT - SERIES 120 FTX400-850
59 100341269 JACKET, OUTER FRONT - SERIES 110 FTX1000
60 100189063 JACKET, OUTER RIGHT - SERIES 100/110 FTX400-850
60 100367816 JACKET, OUTER RIGHT - SERIES 120 FTX400-850
60 100341270 JACKET, OUTER RIGHT - SERIES 110 FTX1000
61 100189064 JACKET, OUTER LEFT - SERIES 100/110 FTX400-850
61 100367818 JACKET, OUTER LEFT - SERIES 120 FTX400-850
61 100341271 JACKET, OUTER LEFT - SERIES 110 FTX1000
62 100381516 JACKET, OUTER TOP - SERIES 120 FTX400-850
62 100381517 JACKET, OUTER TOP - SERIES 110 FTX1000
- 100320868 KIT, PM SERVICE FTX400-500
- 100320870 KIT, PM SERVICE FTX600
- 100320881 KIT, PM SERVICE FTX725-850
- 100363401 KIT, PM SERVICE FTX1000
100208152 GAUGE TRIOMETER, 75 PSI ALL
100208552 SENSOR, SYSTEM / INLET ALL
100208308 DOOR CATCH, BLUE - SERIES 100/110 FTX400-850
100208818 DOOR STRIKE - SERIES 100/110 FTX400-850
100277748 WIRE HARNESS, UNIT - SERIES 100/110 FTX400-850
100367814 WIRE HARNESS, UNIT - SERIES 120 FTX400-850
100346594 WIRE HARNESS, UNIT FTX1000
100288900 WIRE HARNESS, POWER FTX400-850
100346592 WIRE HARNESS, POWER FTX1000
100278061 WIRE HARNESS, FLAME SENSOR ELECTRODE ALL
100208620 WIRE HARNESS, SPARK ELECTRODE ALL
100288901 RIBBON CABLE - SERIES 100/110 FTX400-850
100346596
100288902 WIRE HARNESS, GAS VALVE FTX400-500
100299111 WIRE HARNESS, GAS VALVE FTX600-1000
100170645 SYSTEM SENSOR KIT W/ BULBWELL ALL
100189160 INSTALLATION KIT FTX400-600
100189161 INSTALLATION KIT FTX725-850
100341351 INSTALLATION KIT FTX1000
100189174 LP CONVERSION KIT FTX400-500
100189175 LP CONVERSION KIT FTX600-850
100341272 LP CONVERSION KIT FTX1000
100289529 USER INTERFACE OVERLAY LABEL - SERIES 100/110 FTX400-850
COMMUNICATION HARNESS - SERIES 120 FTX400-850
COMMUNICATION HARNESS FTX1000
JACKET ASSEMBLY
ANNUAL PREVENTATIVE MAINTENANCE KITS
100369149_2000625604_Rev C
PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS
*ITEMS DENOTE SUGGESTED INVENTORY PARTS
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© 07/24 - Printed in U.S.A.
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