
PARTS & SERVICE DEPARTMENT
32
14
13
11
31
41
27
29
2
7
8
4
9
10
1
3
21
Nashville, Tennessee
615-889-8900 • Fax: 615-882-2918
parts_team@lochinvar.com
www.Lochinvar.com
ER2P-05
Replacement Parts List
Residential Pool Heaters
ER(N, L) 151-401
34
33
28
40
37
38
35
30
36
5
39

HEAT EXCHANGER ASSEMBLY
16
17
21
22
23
15
26
6
18
20
24
19
25
12
ITEM NO. PART NO. DESCRIPTION MODEL NO.
BURNERS
1 BNR3417 MAIN BURNER
1 BNR3416 MAIN BURNER W/ PRESSURE TAP ER151 2 1
- GKT2429 GASKET, BURNER ER201 3 1
GAS TRAIN ASSEMBLY
2 VAL2420 IGNITION / GAS VALVE ALL
3 ORF2406 ORIFICE, NAT 151 - 301
3 ORF2141 ORIFICE, NAT - PRIOR TO SERIAL #E05H00004958 401
3 ORF2406 ORIFICE, NAT - BEGINNING SERIAL# E05H00004958 401
3 ORF2904 ORIFICE, LP ALL
CONTROLS AND GAUGES
4 RLY30000 DIGITAL TEMPERA TURE CONTROL ALL
5 LBL20004 OVERLAY LABEL, DIGITAL TEMPERATURE CONTROL ALL
6 HLC30002 THERMOSTAT / HIGH LIMIT - 175* ALL
7 PLT3000 IGNITOR ALL
8 PLT30001 FLAME SENSOR ALL
9 FAN2724 FAN ASSEMBL Y 151
9 FAN2723 FAN ASSEMBLY 201 - 401
10 GKT2009 GASKET, FAN ALL
11 MSC2426 SWITCH, ROCKER - ON/OFF ALL
12 PRS2406 PRESSURE SWITCH, WATER ALL
13 PRS3428 PRESSURE SWITCH, AIR ALL
14 TRF2002 TRANSFORMER, 50VA ALL
15 MSC3403 BYPASS ASSEMBL Y ALL
HEAT EXCHANGERS
16 HEX3425 HEAT EXCHANGER - NO HEADER PARTS 151
16 HEX3426 HEAT EXCHANGER - NO HEADER PARTS 201
16 HEX3427 HEAT EXCHANGER - NO HEADER PARTS 251
PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS
MODEL BNR3417 BNR3416
ER251 4 1
ER301 5 1
ER401 7 1
ER2P-05
2 of 4

ITEM NO. PART NO. DESCRIPTION MODEL NO.
HEAT EXCHANGERS (CONTINUED)
16 HEX3428 HEAT EXCHANGER - NO HEADER PARTS 301
16 HEX3429 HEAT EXCHANGER - NO HEADER PARTS 401
16 HEX3435 CUPRO-NICKEL HEAT EXCHANGER - NO HEADER PARTS 151
16 HEX3436 CUPRO-NICKEL HEAT EXCHANGER - NO HEADER PARTS 201
16 HEX3437 CUPRO-NICKEL HEAT EXCHANGER - NO HEADER PARTS 251
16 HEX3438 CUPRO-NICKEL HEAT EXCHANGER - NO HEADER PARTS 301
16 HEX3439 CUPRO-NICKEL HEAT EXCHANGER - NO HEADER PARTS 401
16 HEX3405-A HEAT EXCHANGER - ASME W/ HEADER 151
16 HEX3406-A HEAT EXCHANGER - ASME W/ HEADER 201
16 HEX3407-A HEAT EXCHANGER - ASME W/ HEADER 251
16 HEX3408-A HEAT EXCHANGER - ASME W/ HEADER 301
16 HEX3409-A HEAT EXCHANGER - ASME W/ HEADER 401
16 HEX3415-A CUPRO-NICKEL HEAT EXCHANGER - ASME W/ HEADER 151
16 HEX3416-A CUPRO-NICKEL HEAT EXCHANGER - ASME W/ HEADER 201
16 HEX3417-A CUPRO-NICKEL HEAT EXCHANGER - ASME W/ HEADER 251
16 HEX3418-A CUPRO-NICKEL HEAT EXCHANGER - ASME W/ HEADER 301
16 HEX3419-A CUPRO-NICKEL HEAT EXCHANGER - ASME W/ HEADER 401
17 GKT2400 GASKET, HEAT SHIELD ALL
18 GKT2418 GASKET, HEADER ALL
19 GKT2413 GASKET, FLANGE - 2" ALL
20 GKT2414 GASKET, FLANGE - 1.5" ALL
21 JKD2266 V-BAFFLE (REQ. 6) 151
21 JKD2267 V-BAFFLE (REQ. 6) 201
21 JKD2268 V-BAFFLE (REQ. 6) 251
21 JKD2269 V-BAFFLE (REQ. 6) 301
21 JKD2270 V-BAFFLE (REQ. 6) 401
22 JKD6474 V-BAFFLE FRAME RUNNER (REQ. 2) 151
22 JKD6475 V-BAFFLE FRAME RUNNER (REQ. 2) 201
22 JKD6476 V-BAFFLE FRAME RUNNER (REQ. 2) 251
22 JKD6477 V-BAFFLE FRAME RUNNER (REQ. 2) 301
22 JKD6478 V-BAFFLE FRAME RUNNER (REQ. 2) 401
23 RLV2084 RELIEF VALVE - 50# (OPTIONAL) ALL
24 DRV2400 DRAIN COCK ALL
25 WTR3502 FLANGE ALL
26 WTR3501 HEADER, FRONT ALL
LOCH-HEAT TILE
27 FIB2237 INSULATION PANEL, FRONT HEAD SIDE ALL
28 FIB2238 INSULATION PANEL, READ HEAD SIDE ALL
29 FIB2239 INSULATION PANEL, FRONT 151
29 FIB2240 INSULATION PANEL, FRONT 201
29 FIB2241 INSULATION PANEL, FRONT 251
29 FIB2242 INSULATION PANEL, FRONT 301
29 FIB2243 INSULATION PANEL, FRONT 401
30 FIB2244 INSULATION PANEL, BOTTOM 151
30 FIB2245 INSULATION PANEL, BOTTOM 201
30 FIB2246 INSULATION PANEL, BOTTOM 251
30 FIB2247 INSULATION PANEL, BOTTOM 301
30 FIB2248 INSULATION PANEL, BOTTOM 401
31 FIB2249 INSULATION PANEL, BACK 151
31 FIB2250 INSULATION PANEL, BACK 201
31 FIB2251 INSULATION PANEL, BACK 251
31 FIB2252 INSULATION PANEL, BACK 301
31 FIB2253 INSULATION PANEL, BACK 401
PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS
3 of 4ER2P-05

ITEM NO. PART NO. DESCRIPTION MODEL NO.
LOCH-HEAT TILE (CONTINUED)
32 FIB2800 INSULATION PANEL, TOP 151
32 FIB2801 INSULATION PANEL, TOP 201
32 FIB2802 INSULATION PANEL, TOP 251
32 FIB2803 INSULATION PANEL, TOP 301
32 FIB2816 INSULATION PANEL, TOP 401
JACKET ASSEMBL Y
33 JKD6430 OUTER JACKET, TOP 151
33 JKD6431 OUTER JACKET, TOP 201
33 JKD6432 OUTER JACKET, TOP 251
33 JKD6433 OUTER JACKET, TOP 301
33 JKD6434 OUTER JACKET, TOP 401
34 JKD6402 OUTER JACKET, UPPER FRONT LEFT 151
34 JKD6403 OUTER JACKET, UPPER FRONT LEFT 201
34 JKD6404 OUTER JACKET, UPPER FRONT LEFT 251
34 JKD6405 OUTER JACKET, UPPER FRONT LEFT 301
34 JKD6406 OUTER JACKET, UPPER FRONT LEFT 401
35 JKD6409 OUTER JACKET, LOWER FRONT LEFT 151
35 JKD6410 OUTER JACKET, LOWER FRONT LEFT 201
35 JKD6411 OUTER JACKET, LOWER FRONT LEFT 251
35 JKD6412 OUTER JACKET, LOWER FRONT LEFT 301
35 JKD6413 OUTER JACKET, LOWER FRONT LEFT 401
36 JKD6408 OUTER JACKET, FRONT RIGHT ALL
37 JKD6407 OUTER JACKET, LEFT SIDE ALL
38 JKD6467 OUTER JACKET, UPPER RIGHT SIDE ALL
39 JKD6414 OUTER JACKET, LOWER RIGHT SIDE ALL
40 JKD5094 COMBUSTION CHAMBER DOOR ASSEMBLY 151
40 JKD5095 COMBUSTION CHAMBER DOOR ASSEMBLY 201
40 JKD5096 COMBUSTION CHAMBER DOOR ASSEMBLY 251
40 JKD5097 COMBUSTION CHAMBER DOOR ASSEMBLY 301
40 JKD5098 COMBUSTION CHAMBER DOOR ASSEMBLY 401
MISCELLANEOUS
41 MSC3415 SIGHT GLASS ASSEMBLY ALL
GKT2053 GASKET, RED SILICONE SPONGE - 5/8" x 1/8" ALL
GKT2104 GASKET, BLACK NEOPRENE SPONGE - 1/2" x 1/8" ALL
GKT3408 GASKET, MANNING GLASS - 45" STRIP ALL
GKT2427 GASKET, ESCUTCHEON PIPE - 3/4" ALL
GKT2719 GASKET, BULBWELL ALL
GKT30000 GASKET, PVC - 1/4" x 5/8" x 25FT. ROLL ALL
GKT30001 GASKET, SILICONE - 1/4" x 5/8" x 15FT. ROLL ALL
TST2313 SENSOR, TEMPERATURE ALL
TST2301 BULBWELL - 3/8" NPT ALL
MSC2457 HOSE BARB FITTING ALL
MSC2461 TUBING, CLEAR SILICONE - 1/8" ALL
MSC2706 TUBING, BLACK EDPM - 1/4" ALL
MSC7119 BULBWELL CLIP ALL
PRS2701 PRESSURE TAP / PROBE ALL
WRE2036 WIRE HARNESS, FLAME ROD ALL
PLEASE HAVE MODEL AND SERIAL NUMBER WHEN ORDERING PARTS
ER2P-05
4 of 4
©-05/12—Printed in U.S.A.