Laars JVH Parts List
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LAARS Heating Systems
10B Parts List JVH
Mini-Therm JVH Size
Description JVH-50 JVH-75 JVH-100 JVH-125 JVH-160 JVH-225
Gas System
1 Pilots
Pilot Assembly (Nat.), Hot Surface RW2001800 RW2001800 RW2001800 RW2001800 RW2001800 RW2001800
Pilot Assembly (LP), Hot Surface RW2001900 RW2001900 RW2001900 RW2001900 RW2001900 RW2001900
2 Burner with Pilot Bracket L0056500 L0056500 L0056500 L0056500 L0056500 L0056500
3 Main Burner L0052500 L0052500 L0052500 L0052500 L0052500 L0052500
4 Main Gas Valves
Gas Valve, Hot Surface, (Nat.) SV9600H R0384700 R0384700 R0384700 R0384700 R0384700 RV2001900
Gas Valve, Hot Surface, (LP) SV9500H R0384800 R0384800 R0384800 R0384800 R0384800 R0384800
5 Gas Orifices
(0-2000 FT.) Nat., Orifices L0032200 L0032200 L0032200 L0032200 L0050700 L0050700
(2001-5000 FT.) Nat., Orifices L0050700 L0050700 L0050700 L0050700 L0032600 L0032600
(5001-8000 FT.) Nat., Orifices L0032600 L0032600 L0032600 L0032600 L0050300 L0050300
(8001-10,000 FT.) Nat., Orifices L0050300 L0050300 L0050300 L0050300 L0050300 L0050300
(0-5000 FT.) LP, Orifices L0032900 L0032900 L0032900 L0032900 L0032900 L0032900
(5001-8000 FT.) LP, Orifices L0032800 L0032800 L0032800 L0032800 L0032800 L0032800
(8001-10,000 FT.) LP, Orifices L0032700 L0032700 L0032700 L0032700 L0032800 L0032800
6 Gas Manifold L0052601 L0052602 L0052603 L0052604 L0052605 L0052606
Electrical System
7 Controller, Tekra RE2344300 RE2344300 RE2344300 RE2344300 RE2344300 RE2344300
8 Transformerll5/24V(50VA) E2074400 E2074400 E2074400 E2074400 E2074400 E2074400
9 Switch, Air Pressure (0-5000 FT.) E2074501 E2074501 E2074501 E2074502 E2074502 E2074503
Switch, Air Pressure (5001-10000 FT.) E2074504 E2074504 E2074504 E2074505 E2074505 E2074506
10 Blower/Motor, Induced Draft R2069600 R2069600 R2069600 R2069600 R2069600 R2069600
11 Switch, Roll-out Safety E2103200 E2103200 E2103200 E2103200 E2103200 E2103200
12 Switch, Limit R0061300 R0061300 R0061300 R0061300 R0061300 R0061300
13 Ignition Control E2102800 E2102800 E2102800 E2102800 E2102800 E2102800
Wire Harness (not shown) E2347500 E2347500 E2347500 E2347500 E2347500 E2347500
Fuse, 5-Pack, 4-Amp (not shown) RE0084401 RE0084401 RE0084401 RE0084401 RE0084401 RE0084401
Temp Sensor (not shown) E2347600 E2347600 E2347600 E2347600 E2347600 E2347600
Outdoor Sensor (not shown) E2347400 E2347400 E2347400 E2347400 E2347400 E2347400
Water System
14 Heat Exchanger R0402007 R0402008 R0402009 R0402010 R0402011 R0402012
15 Gauge, Temperature/Pressure A2000400 A2000400 A2000400 A2000400 A2000400 A2000400
16 Gauge, Temperature 2400-392 2400-392 2400-392 2400-392 2400-392 2400-392
17 Valve, Pressure Relief 30 PSI R0061400 R0061400 R0061400 R0061400 R0061400 R0061400
18A Well, Immersion, 1/2" NPT E0025902 E0025902 E0025902 E0025902 E0025902 E0025902
18B Well, Immersion, 3/4" NPT E2345700 E2345700 E2345700 E2345700 E2345700 E2345700
19 Valve, Drain 1/2' NPT 70-270 70-270 70-270 70-270 70-270 70-270
Jacket and Fire Box Components
20 Base Weldment 20400701 20400702 20400703 20400704 20400705 20400706
21 Front Panel 11028301 11028301 11028303 11028303 11028306 11028306
22 Jacket 11027901 11027901 11027903 11027903 11027905 11027906
23 Cover, top rear 11028501 11028502 11028503 11028504 11028505 11028506
24 Cover, top front 11028401 11028402 11028403 11028404 11028405 11028406
25 Access Panel, heat exchanger plug 10535900 10535901 10535900 10535901 10535901 10535901
26 Cover, piping jacket top 11047601 11047602 11047601 11047602 11047602 11047602
27 Flue Collector Weldment 20403901 20403902 20403903 20403904 20403905 20403906
28 Burner Tray Weldment 20403001 20403002 20403003 20403004 20403005 20403006
29 Control Box Weldment 20608500 20608500 20608500 20608500 20608500 20608500
30 Control Box Cover 11045901 11045901 11045901 11045901 11045901 11045901
31 Burner Cover 20403304 20403305 20403306 20403304 20403305 20403306
32 Tile Cover 10469504 10469505 10469506 10469504 10469505 10469506
33 Heat Exchanger Baffle 10485307 10485305 10485306 10485307 10485305 10485306
34 Front Refractory T2007704 T2007705 T2007706 T2007704 T2007705 T2007706
35 Rear Refractory T2007804 T2007805 T2007806 T2007804 T2007805 T2007806
36 Orifice Plates
Orifice Plate, Nat. (0-5000 FT.) 20404605 20404607 20404609 20404605 20404607 20404609
Orifice Plate, Nat. (5001-10,000 FT.) 20404605 20404606 20404608 20404605 20404606 20404608
Orifice Plate, LP (0-5000 FT.) 20404606 20404608 20404610 20404606 20404608 20404610
Orifice Plate, LP (5001-10,000 FT.) 20404604 20404606 20404612 20404604 20404606 20404612
37 Flue Outlet D2004201 D2004201 D2004201 D2004201 D2004201 D2004201
38 Bracket, pressure switch 11028200 11028200 11028200 11028200 11028200 11028200
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21
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23
24
22
30
12
13
8
25
7
16
29
15
27
9
37
36
32
10
35
31
18B
(left side)
38
33
11
32
17
18A
4
(right side)
14
19
34
20
3
28
1
2
5
6
Figure 19A. JVH Parts Identication.
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