Laars MagnaTherm MGH1600, Installation And Operation Instructions Manual

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MagnaTherm Boilers and Water Heaters Page 103
13.2.8 Gas Train Assembly, Part Numbers
(Models 1600, 2000, 2500 and 3000)
Frame and Jacket Assembly
1600 2000 2500 3000 3500 4000
Item # Description Part No. Part No. Part No. Part No. Part No. Part No.
1 Base assembly 16N1000 20N1000 30N1000 30N1000 40N1000 40N1000
2 Filter A2121700 A2121700 A2121700 A2121700 A2121700 A2121700
2a Filter assembly (includes filter) 16N2600 20N2600 25N2600 30N2600 40N2600 40N2600
3 Stanchion 20N3010 20N3010 30N3001 30N3001 40N3001 40N3001
4 Panel, left bottom 20N3002 20N3002 30N3002 30N3002 40N3002 40N3002
5 Panel, right bottom 20N3004 20N3004 30N3004 30N3004 40N3004 40N3004
6 Extension brace, rear 30N3007 30N3007 30N3007 30N3007 30N3007 30N3007
7 Brace, upper side 20N3008 20N3008 30N3008 30N3008 40N3008 40N3008
8 Brace, lower right side 20N3047 20N3047 30N3011 30N3011 40N3047 40N3047
9 Frame mounting bracket 20N3005 20N3005 30N3012 30N3012 40N3005 40N3005
10 Brace 20N3013 20N3013 30N3013 30N3013 40N3013 40N3013
11 Panel, upper rear 16N3019 20N3019 30N3019 30N3019 40N3019 40N3019
12 Panel, center rear 16N3020 20N3020 30N3020 30N3020 40N3020 40N3020
13 Panel, lower rear 16N3021 20N3021 25N3021 30N3021 40N3021 40N3021
14 Panel, right 20N3036 20N3036 30N3036 30N3036 40N3036 40N3036
15 Strut, upper panel support 30N3043 30N3043 30N3043 30N3043 30N3043 30N3043
16 Panel, top 16N3045 20N3045 30N3045 30N3045 40N3045 40N3045
17 Brace, lower left side 20N3047 20N3047 30N3049 30N3049 40N3047 40N3047
18 Hinge mounting bracket, left 20N3163 20N3163 30N3050 30N3050 40N3163 40N3163
19 Hinge mounting bracket, right 20N3164 20N3164 30N3051 30N3051 40N3164 40N3164
20 Panel, right, rain splatter 30N3053 30N3053 30N3053 30N3053 40N3050 40N3050
21 Panel, left, rain splatter 30N3054 30N3054 30N3054 30N3054 40N3050 40N3050
22 Bracket, hinge brace 30N3055 30N3055 30N3055 30N3055 30N3055 30N3055
23 Panel, top left 20N3035 20N3035 30N3057 30N3057 40N3035 40N3035
24 Bracket, pressure switch 20N3053 20N3053 20N3053 20N3053 20N3053 20N3053
25 Cover, field connections 17J3025 17J3025 17J3025 17J3025 17J3025 17J3025
26 Gasket, .75" x .06" x 2 feet R2074402 R2074402 R2074402 R2074402 R2074402 R2074402
Final Assembly
1600 2000 2500 3000 3500 4000
Item # Description Part No. Part No. Part No. Part No. Part No. Part No.
1 Heat Exchanger R16N2070 R20N2070 R30N2070 R30N2070 R40N2070 R40N2070
2 Plate, rear panel, gas pipe 20N3034 30N3034 30N3034 30N3034 30N3034 30N3034
3 Door, right 20N3100 20N3100 30N3100 30N3100 40N3100 40N3100
4 Door, left 20N3150 20N3150 30N3150 30N3150 40N3150 40N3150
5 Control panel assemblies:
MGH 20N7080 20N7080 30N7080 30N7080 40N7080 40N7080
MGH with CSD-1 20N7081 20N7081 30N7081 30N7081 40N7081 40N7081
MGV 20N7082 20N7082 30N7082 30N7082 40N7082 40N7082
MGV with CSD-1 20N7083 20N7083 30N7083 30N7083 40N7083 40N7083
6 Condensate trap assembly 20N2010 20N2010 30N2010 30N2010 40N2010 40N2010
7 Panel, drain access 40N3048 40N3048 40N3048 40N3048 40N3048 40N3048
8 Pressure switch E2363100 E2362200 E2362201 E2361900 E2361900 E2361900
9 Pressure switch E2344901 E2362000 E2363400 E2362301 E2362300 E2362300
10 Pressure switch E2362200 N/A N/A N/A E2362302 E2362302
11 Outlet box (not shown) E2350900 E2350900 E2350900 E2350900 E2350900 E2350900
12 Spacer F2035400 F2035400 F2035400 F2035400 F2035400 F2035400
13 Silicone rubber bumper F2039700 F2039700 F2037900 F2037900 F2037900 F2037900
14 Bushing, nylon S0064900 S0064900 S0064900 S0064900 S0064900 S0064900
15 Grommet, 2" pipe S2116500 S2116500 S2116500 S2116500 S2116500 S2116500
16 Grommet, push-in S2123600 S2123600 S2123600 S2123600 S2123600 S2123600
17 Plug, button, 7/8" F0032300 F0032300 F0032300 F0032300 F0032300 F0032300
18 Flue Gas Sensor E2340000 E2340000 E2340000 E2340000 E2340000 E2340000
Waterway Outlet Assembly
1600 2000 2500 3000 3500 4000
Item # Description Part No. Part No. Part No. Part No. Part No. Part No.
1 Pipe, outlet manifold 20N4023 20N4023 30N4020 30N4020 40N4020 40N4020
2 PRV 75# (MGH) A0002700 A0002700 A0000300 A0000300 A208000 A208000
PRV 125# (MGV) A0064400 A0064400 A0000200 A0000200 A0000200 A0000200
3 Flow switch RE0013000 RE0013000 RE0013000 RE0013000 RE0013000 RE0013000
Flow switch paddle E2255800 E2255800 E2255800 E2255800 E2255900 E2255900
4 Well, immersion, 1/2"NPT RE2058300 RE2058300 RE2058300 RE2058300 RE2058300 RE2058300
5 Sensor, water temperature, duplex RE2319900 RE2319900 RE2319900 RE2319900 RE2319900 RE2319900
6 Coupling, flexible victaulic P2086500 P2086500 P2086500 P2086500 P2086600 P2086600
7 Plug
MGH N/A N/A P2088300 P2088300 P2088300 P2088300
MGV N/A N/A P2080300 P2080300 P2080300 P2080300
8 Grommet, rubber S2114000 S2114000 S2114000 S2114000 S2114000 S2114000
9 Sensor, water temperature (MGH) RE2320600 RE2320600 RE2320600 RE2320600 RE2320600 RE2320600
10 Gauge, temp & pressure RA0079000 RA0079000 RA0079000 RA0079000 RA0079000 RA0079000
Blower Burner Assembly
1600 2000 2500 3000
Item # Description Part No. Part No. Part No. Part No.
1 Burner L2019500 L2019500 L2020600 L2020600
2 Gasket, burner S2125500 S2125500 S2125100 S2125100
3 Adapter plate 20N5037 20N5037 30N5037 30N5037
4 Sight glass RF0044800 RF0044800 RF0044800 RF0044800
5 Flame sensor W2014900 W2014900 W2014900 W2014900
6 Gasket, blower outlet flange S2125600 S2125600 S2125200 S2125200
7 Venturi / Air intake assembly A2123300 A2123300 30N5092 30N5092
8 Gasket, blower intake 20N5095 20N5095 S2125300 S2125300
9 Flow sensor, diff pressure N/A N/A A2121601 A2121601
10 Blower A2122100 A2122100 A2122100 A2122100
11 Ignitor, hot surface W2014400 W2014400 W2014400 W2014400
12 Pilot tube 20N5088 20N5088 30N5093 30N5093
13 Compression fitting P2085000 P2085000 P2085000 P2085000
14 Gasket, filter box flange 20N5094 20N5094 N/A N/A
15 Pipe & flange weldment 20N5092 20N5092 N/A N/A
16 Pipe & flange weldment 20N5090 20N5090 N/A N/A
17 Gasket, venturi / gas valve S2104900 S2104900 N/A N/A
3500 4000
Item # Description Part No. Part No.
1 Burner L2019900 L2019900
2 Gasket, burner S2124100 S2124100
3 Gasket, spacer 40N5092 40N5092
4 Pilot tube 40N5090 40N5090
5 Gasket, blower outlet flange 40N5093 40N5093
6 Flow sensor, diff pressure A2121600 A2121600
7 Gas/air intake assembly 40N5069 40N5069
8 Gasket, blower intake S2125300 S2125300
9 Blower A2120900 A2120900
10 O-Ring S2124800 S2124800
11 Adapter 1/4" tube x 1/8" female P2090200 P2090200
12 Blower tube 40N5077 40N5077
13 Gasket, burner S2124600 S2124600
14 Ignitor, hot surface W2013900 W2013900
15 Sight glass RF0044800 RF0044800
16 Flame sensor W2014900 W2014900
Gas Train Assembly
1600 2000 2500 3000
Item # Description Part No. Part No. Part No. Part No.
1 Pressure switch, low gas R2004100 R2004100 R2004100 R2004100
2 Pressure switch, high gas R2004000 R2004000 R2004000 R2004000
3 Elbow P0008600 P0008600 P0008700 P0008700
4 Nipple P0020000 P0019800 P0021200 P0021200
5 Nipple, 2"NPTx4" P2095800 P0022600 P0022600 P0022600
6 Bushing, reducing, 1/4x1/8 P2032400 P2032400 P2032400 P2032400
7 Adapter, 2"NPTx1-1/2"NPT P0003900 N/A P2085700 P2085700
8 Nipple P2092800 P2092800 P2091600 P2091600
9 Bushing, nylon S0064900 S0064900 S0064900 S0064900
10 Gas valve, main
V2023000 V2021200
V2021200 V2021200
11 Flange, gas valve V2024400 V2021900 V2021900 V2021900
12 Pilot regulator V2022100 V2022100 V2022100 V2022100
13 Ball valve, 3/8" V2022200 V2022200 V2022200 V2022200
14 Compression fitting, 1/4" tube NA P2085000 P2085000 P2085000
15 Compression fitting, 1/4" tube x 1/4NPT P0004100 P0004100 P0004100 P0004100
16 Pilot tube 16N6027 20N5086 30N6027 30N6027
17 Nipple, 1/8"x2" P0011300 P0011300 P0011300 P0011300
18 Elbow, 1/8" P2008900 P2008900 P2008900 P2008900
19 Nipple, 1/8" P0011100 P0011100 P0011100 P0011100
20 Nipple/tee weldment 30N6031 30N6031 30N6031 30N6031
21 Tee, 1/8" P0027100 P0027100 P0027100 P0027100
22 Nipple, 1/8" x close P0011100 P0011100 P0011100 P0011100
23 Plug 70-236 70-236 70-236 70-236
24 Ball valve V2003300 V2003300 R2011600 R2011600
25 Ball valve V2003200 V2003200 R2011600 R2011600
26 Adapter, 1/8 FNPT x 1/8 ISO male P2089600 P2089600 P2089600 P2089600
27 Adapter, 1/4 tube barb to 1/8 NPT male P2097800 P2089300 P2089300 P2089300
28 Flange, adjustable shutter V2023200 V2022400 V2022000 V2022000
29 Nipple, 1-1/2" x close P0015500 N/A P0019100 P0019100
30 Nipple, 3/8"x3" P2090500 P2090500 P2090500 P2090500
31 Tee, 3/8x3/8x3/8 P2090600 P2090600 P2090600 P2090600
32 Bushing, reducing, 3/8x1/8 P2090700 P2090700 P2090700 P2090700
33 Union P0030700 P0030700 N/A N/A
34 Nipple P2077800 P2072800 N/A N/A
35 Elbow P0008700 P0008700 P0008700 P0008700
36 Nipple NA P0015500 P0021200 P0021200
37 Nipple P2095900 P0021200 P0021200 P0021200
3500 4000
Item # Description Part No. Part No.
1 Pressure switch, low gas R2004100 R2004100
2 Pressure switch, high gas R2004000 R2004000
3 Elbow, 45°, 2" P2090900 P2090900
4 Nipple, 2"x14" P2091000 P2091000
5 Union, 2" P0030800 P0030800
6 Nipple, 2"x6" P0021700 P0021700
7 Ball valve R2011600 R2011600
8 Bushing, 2"x1-1/2" P0001400 P0001400
9 Elbow, 90°, 1-1/2" P0009600 P0009600
10 Nipple, 1-1/2"x2.5"
P2906600
P2045300
11 Flange, adjustable shutter V2022000 V2022000
12 Washer, sealing S2123500 S2123500
13 Adapter, 1/8 FNPT x 1/8 ISO Male P2089600 P2089600
14 Nipple, 1/8 x close P0011100 P0011100
15 Tee, 1/8" P0027100 P0027100
16 Plug, 1/8" 70-236 70-236
17 Bushing, 1/4"x1/8" P2032400 P2032400
18 Pipe, gas inlet 40N6034 40N6034
19 Elbow, 90°, 2" P2091100 P2091100
20 Nipple, 2"x2" P0021100 P0021100
21 Flange, 2" V2021900 V2021900
22 Elbow, 90°, 1/8" P2008900 P2008900
23 Tee, 3/8" P2090600 P2090600
24 Bushing, 3/8"x1/8" P2090700 P2090700
25 Nipple, 3/8"x2" P2089000 P2089000
26 Ball valve, 3/8" V2022200 V2022200
27 Pilot regulator V2022100 V2022100
28 Compression fitting, 1/4" tube x 1/4NPT P0004100 P0004100
29 Pilot tube 40N6025 40N6025
30 Valve, Gas, Dungs
V2021200
V2022300 NAT
V2021200 PROP
31 Washer, Sealing,1/8 BSPP Fitting Dungs S2123500 S2123500
32 Adapter, Fem to Male, 1/8 FNPT X 1/8 ISO P2089600 P2089600
33 Valve, Manual, Brnz, 1/8 MNPTx1/8 FNPT W2000300 W2000300
34 Adapter, 1/4" Barb P2089300 P2089300
35 Pipe Plug, Malleable Iron, Black, 1/8 NPT 70-236 70-236
36 Fitting, Compression, Tube, Brass P2097200 P2097200
Control Panel Assembly
1600 2000 2500 3000 3500 4000
Item # Description Part No. Part No. Part No. Part No. Part No. Part No.
1 DIN rail assembly 30N7040 30N7040 30N7040 30N7040 30N7040 30N7040
2 Low water cutoff RE2075100 RE2075100 RE2075100 RE2075100 RE2075100 RE2075100
3 Bushing, 7/8 nylon, open E2074300 E2074300 E2074300 E2074300 E2074300 E2074300
4 Relay, 24VAC, DPDT E2327800 E2327800 E2327800 E2327800 E2327800 E2327800
5 Display, touch control E2339800 E2339800 E2339800 E2339800 E2339800 E2339800
6 Bushing, 7/8 nylon, split S0064900 S0064900 S0064900 S0064900 S0064900 S0064900
7 High limit, manual reset E2217800 E2217800 E2217800 E2217800 E2217800 E2217800
8 High limit, auto reset E2217700 E2217700 E2217700 E2217700 E2217700 E2217700
9 Plug, terminal block E2346300 E2346300 E2346300 E2346300 E2346300 E2346300
10 Vari-Prime control (MGH) 30N7067 30N7067 30N7067 30N7067 30N7067 30N7067
11 Control panel sheet metal assembly 30N7050 30N7050 30N7050 30N7050 40N7050 40N7050
22 Control module, programmed
Standard RXN7051 RXN7051 RXN7055 RXN7051 RXN7055 RXN7051
CSD-1 RXN7052 RXN7052 RXN7056 RXN7052 RXN7056 RXN7052