MegaTherm Model MT MegaTherm Model MT
MegaTherm Model MT
MegaTherm Model MT MegaTherm Model MT
Old style AP before April 1999, New style after April 1999
Sizes 500,000 - 1,825,000 BTU/h
Part No. Description Model Size List Price
GAS SYSTEM
BURNER TRAYS
See listing in MegaTherm HH, PH, VW, PW and IW for common components.
10525901 Gas Manifold Weldment
(single inlet) ..................................both .. 500.............$214.99
10525902 Gas Manifold Weldment
(single inlet) ..................................both .. 600............... 240.22
10525903 Gas Manifold Weldment
(single inlet) ..................................both .. 715............... 278.29
10525904 Gas Manifold Weldment
(single inlet) ..................................both .. 850............... 341.74
10525905 Gas Manifold Weldment
(single inlet) ..................................both .. 1010.............373.48
10525906 Gas Manifold Weldment
(single inlet) ..................................both .. 1200.............379.81
10525907 Gas Manifold Weldment
(single inlet) ..................................both .. 1430.............392.50
10525908 Gas Manifold Weldment
(single inlet) ..................................both .. 1670.............405.18
10525909 Gas Manifold Weldment
(single inlet) ..................................both .. 1825.............417.87
RL0052300 Burner, Main 10 Pack...................both .........................106.08
10529501 Pilot Bracket/Burner Weldment
(Johnson)......................................old..............................26.36
10529502 Pilot Bracket/Burner Weldment
(Honeywell)...................................both ........................... 26.36
R10529300 Pilot Burner IID, Nat 500-1825
Honeywell, 4-Stage ......................both .........................124.28
R20039600 Pilot Burner Assy IID LP
Honeywell, 4-Stage ......................both .........................134.99
10547002 Complete Pilot Assy
Standing Pilot, LP .........................both .........................134.05
10547001 Complete Pilot Assy
Standing Pilot, Nat........................both ......................... 134.05
W0035800 Pilot Burner (Honeywell)
Standing Pilot, Nat........................both ........................... 93.83
W0034400 Pilot Burner (Honeywell)
Standing Pilot, LP .........................both .........................107.23
RW0034300 Pilot Burner (Honeywell) Spark Ignition
Nat ................................................both ......................... 112.78
W2001500 Pilot Burner (Honeywell) Spark Ignition
LP..................................................both .........................112.60
RW0034500 Pilot Burner Nat Spark Johnson...both ........................... 88.28
W0034600 Pilot Burner (Johnson) Standing
Pilot LP .........................................both ........................... 37.53
W0036500 Thermocouple (Standing Pilot).....both ...........................15.58
10418815 Pilot Sensor Lead Assy - Std Pilot/
Nat gas .........................................both ........................... 19.26
10418816 Pilot Sensor Lead Assy - Std Pilot/LP
Spark Ign / LP & Nat.....................both ........................... 19.26
R10418814 Pilot Ignition Lead Assy - Spark Ign................................. 33.20
L0050700 Orifice, Nat Gas, 0-2000 ft ...........both ............................. 1.51
L0032600 Orifice, Nat Gas, 2001-5000 ft .....both .............................1.51
L0050200 Orifice, Nat Gas, 5001-6000 ft .....both .............................1.51
L0050300 Orifice, Nat Gas, 6001-7000 ft .....both .............................1.51
L0050400 Orifice, Nat Gas, 7001-10000 ft ...both ............................. 1.51
L0032900 Orifice, LP Gas, 0-4000 ft.............both ............................. 1.51
Part No. Description Model Size List Price
L0032800 Orifice, LP Gas, 4001-8000 ft.......both .............................1.51
L0032700 Orifice, LP Gas, 8001-10000 ft ....both ............................. 3.62
V0004200 Gas Valve, Manual, 1", Nat
LP 1010-1200 ...............................both .. 500-715 ......... 42.98
V0004300 Gas Valve, Manual, 1-1/4", Nat
LP 1430-1825 ...............................both .. 850-1825 .......63.05
V0004800 Gas Valve, Manual, 3/4", LP ........both .. 500-850 ......... 42.05
RV0046600 Valve Gas Auto 1x1 Nat/LP 24V..both .. 500-850 .......259.99
RV0046700 Gas Valve, Safety, 1-1/4", On/Off
& 2-Stage, Nat ..............................both .. 1010-1670 ...309.00
V0046800 Gas Valve, Safety, 1-1/2" On/Off
& 2-Stage, Nat ..............................both .. 1825............. 311.50
V0047600 Gas Valve Combo, 1x1 Nat 24V ....................................296.17
RV0051200 Valve Gas Combo 1" 24V Nat
On/Off & 2-Stage..........................both .. 500-850 .......358.42
RV0051300 Valve Gas Combo 1-1/4" 24V Nat
On/Off & 2-Stage..........................both .. 1010-1430 ...437.71
V0051400 Gas Valve, Combination/Operating
1-1/2", On/Off & 2-Stage, Nat .....both .. 1670-1825 ...474.63
V0059600 Gas Valve, Combination/Operating
3/4", used on 4-Stage, Nat...........both .. 500-715 ....... 458.42
V0054800 Gas Valve, Combination/Operating
1", On/Off & 2-Stage, LP.............both .. 500-1200 ..... 368.28
V0054900 Gas Valve, Combination/Operating
1-1/4", On/Off & 2-Stage, LP.......both .. 1430-1825 ...453.79
V0070800 Gas Valve, Combination/Operating
3/4", used on 4-Stage, LP ............both .. 500-850 .......258.45
W0002100 Pilot Gas Valve, Manual, Nat/LP..both .. all ................. 12.84
W0019300 Pilot Valve, Solenoid, Nat/LP .......both .. all .................57.63
W0002000 Pilot Regulator, Nat ......................both .. all .................20.05
W2000200 Pilot Regulator, LP .......................both .. all ................. 38.04
Manifold cover plate assembliles, anti rotation brackets and tie down
brackets - see listing for MegaTherm HH, PH, VW, PW and IW for common
components.
ELECTRICAL COMPONENTS
RE0100900 Controller, Ignition Module
(used prior to April 1999)..............both ......................... 118.80
RE2033900 Ignition Control (used prior to April 1999)......................136.32
E2305400 Ignition Control, UT 100% Lockout
After 1 Retry ................................................................... 143.19
E2305500 Ignition Control, UT, Continuous Retry ............................81.78
R0021300 Transformer, 40VA, 115/24V Kit..both ...........................14.78
E2103900 High Limit, Manual Reset Switch .new.......................... 129.18
E2103800 Water Temp Control 60-105°F.....new............................ 93.33
E2103600 Water Temp Sensor .....................new.......................... 107.04
RE2218701 Pressure Switch, Water..................................................153.36
RE0066200 Switch, Dual Aquastat ..................old............................ 271.52
E0109200 Toggle Switch, 3-Position.............both ........................... 20.11
E0086800 Toggle Switch ...............................both ............................. 9.22
10449518 Hi Tension Lead (orange/red wire
from ignition ctrl to pilot lead) .......both .. 500-600 .........33.85
10449519 Hi Tension Lead (orange/red wire
from ignition ctrl to pilot lead) .......both .. 715-850 .........33.85
10449520 Hi Tension Lead (orange/red wire
from ignition ctrl to pilot lead) .......both .. 1010-1430 ..... 33.85
3
MegaTherm AP, Sizes 500,000-1,825,000 MegaTherm AP, Sizes 500,000-1,825,000
MegaTherm AP, Sizes 500,000-1,825,000
MegaTherm AP, Sizes 500,000-1,825,000 MegaTherm AP, Sizes 500,000-1,825,000
Part No. Description Model Size List Price Part No. Description Model Size List Price
10449521 Hi Tension Lead (orange/red wire
from ignition ctrl to pilot lead) .......both .. 1670-1825 ..... 33.85
ELECTRICAL COMPONENTS (Optional)
E0023300 High Gas Pressure Switch,
Manual Reset ...............................both .........................119.21
E0023500 Low Gas Pressure Switch
Manual Reset ...............................both .........................119.21
RE2075100 Low Water Cut Off
Manual Reset, 120 VAC...............both ......................... 269.94
V2000100 Normally Open Vent Valve
24 Volts (System 9, 11)................both .........................355.73
WATER SYSTEM
Code Compliant ASME Tube Assemblies
Built in accordance with the requirements of the ASME Boiler and Pressure
Vessel Code. Individually serialized with H-4 data reports on file as required
by section HG-520.2 and HG-531
Cupronickel tubes with glass-lined headers , ideal for corrosive or
softwater applications (under 7.5 grains hardness) or when hard water
pumping creates higher tube velocities. Suitable for use with swimming
pool heaters.
Indoor Boilers (8 Tubes):
BR098401 Tube Assy.....................................both .. 500............1,789.60
BR098402 Tube Assy.....................................both .. 600............1,968.40
BR098403 Tube Assy.....................................both .. 715............2,156.40
BR098404 Tube Assy.....................................both .. 850............2,463.27
BR098405 Tube Assy.....................................both .. 1010.......... 2,714.40
BR098406 Tube Assy.....................................both .. 1200.......... 3,022.77
BR098407 Tube Assy.....................................both .. 1430.......... 3,382.76
BR098408 Tube Assy.....................................both .. 670............3,698.06
BR098409 Tube Assy.....................................both .. 1825.......... 3,927.07
Outdoor Boilers (10 Tubes):
BR001001 Tube Assy.....................................both .. 500............2,189.78
BR001002 Tube Assy.....................................both .. 600............2,430.22
BR001003 Tube Assy.....................................both .. 715............2,677.83
BR001004 Tube Assy.....................................both .. 850............3,049.06
BR001005 Tube Assy.....................................both .. 1010.......... 3,375.54
BR001006 Tube Assy.....................................both .. 1200.......... 3,790.90
BR001007 Tube Assy.....................................both .. 1430.......... 4,248.51
BR001008 Tube Assy.....................................both .. 1670.......... 4,656.27
BR001009 Tube Assy.....................................both .. 1825.......... 4,962.25
Cupronickel tubes with bronze headers , a non-ferrous solution for the
most demanding systems. Suitable for higher oxygen content hydronic
systems, all volume water applications and excellent for swimming pool
heaters.
Indoor Boilers (8 Tubes):
BR553701 Tube Assy.....................................both .. 500............2,899.21
BR553702 Tube Assy.....................................both .. 600............3,120.91
BR553703 Tube Assy.....................................both .. 715............3,308.85
BR553704 Tube Assy.....................................both .. 850............3,577.64
BR553705 Tube Assy.....................................both .. 1010.......... 3,824.07
BR553706 Tube Assy.....................................both .. 1200.......... 4,137.14
BR553707 Tube Assy.....................................both .. 1430.......... 4,497.13
BR553708 Tube Assy.....................................both .. 1670.......... 4,812.43
BR553709 Tube Assy.....................................both .. 1825.......... 5,036.67
Outdoor Boilers (10 Tubes):
BR670401 Tube Assy.....................................both .. 500............3,243.94
BR670402 Tube Assy.....................................both .. 600............3,486.90
BR670403 Tube Assy.....................................both .. 715............3,732.06
BR670404 Tube Assy.....................................both .. 850............4,100.70
BR670405 Tube Assy.....................................both .. 1010.......... 4,429.70
BR670406 Tube Assy.....................................both .. 1200.......... 4,845.06
BR670407 Tube Assy.....................................both .. 1430.......... 5,302.66
BR670408 Tube Assy.....................................both .. 1670.......... 5,713.95
BR670409 Tube Assy.....................................both .. 1825.......... 6,011.27
For copper tube heat exchangers see listing on pages 16-17. It is
recommended to use cupronickle heat exchangers for swimming pool
applications.
10534301 Baffle, HX Front/Rear (indoor) .....both .. 500................... 4.22
10534302 Baffle, HX Front/Rear (indoor) .....both .. 600................... 4.22
10534303 Baffle, HX Front/Rear (indoor) .....both .. 715................... 4.22
10534304 Baffle, HX Front/Rear (indoor) .....both .. 850................... 4.22
10534305 Baffle, HX Front/Rear (indoor) .....both .. 1010................. 4.22
10534306 Baffle, HX Front/Rear (indoor) .....both .. 1200................. 4.22
10534307 Baffle, HX Front/Rear (indoor) .....both .. 1430................. 4.22
10534308 Baffle, HX Front/Rear (indoor) .....old..... 1670.................4.22
10534309 Baffle, HX Front/Rear (indoor) .....old..... 1825.................4.22
20020108 Baffle, HX Front/Rear (indoor) .....new... 1670............... 39.58
20020109 Baffle, HX Front/Rear (indoor) .....new... 1825............... 41.49
10534601 Baffle, HX
(500 =7 req; 1825=14 req) ..........both .. 500/1825 .........4.22
10534602 Baffle, HX (14 req)........................both .. 600................... 4.22
10534603 Baffle, HX (14 req)........................both .. 715................... 4.22
10534604 Baffle, HX (14 req)........................both .. 850................... 4.22
10534605 Baffle, HX (14 req)........................both .. 1010................. 4.22
10534606 Baffle, HX (28 req)........................both .. 1200................. 4.22
10534607 Baffle, HX (28 req)........................both .. 1430................. 4.22
10534608 Baffle, HX (28 req)........................old..... 1670................. 4.22
10534602 Baffle, HX (14 req)........................old..... 1825................. 4.22
10667702 Baffle, HX (14 req)........................new... 1825................. 4.20
10667708 Baffle, HX (28 req)........................new... 1670................. 4.20
10667709 Baffle, HX (14 req)........................new... 1825................. 4.20
20020101 Baffle, HX Front/Rear
(outdoor) (2 req) ...........................both .. 500................. 37.49
20020102 Baffle, HX Front/Rear
(outdoor) (2 req) ...........................both .. 600................. 37.76
20020103 Baffle, HX Front/Rear
(outdoor) (2 req) ...........................both .. 715................. 38.17
20020104 Baffle, HX Front/Rear
(outdoor) (2 req) ...........................both .. 850................. 38.44
20020105 Baffle, HX Front/Rear
(outdoor) (2 req) ...........................both .. 1010............... 38.75
20020106 Baffle, HX Front/Rear
(outdoor) (2 req) ...........................both .. 1200............... 39.03
20020107 Baffle, HX Front/Rear
(outdoor) (2 req) ...........................both .. 1430............... 39.29
20020108 Baffle, HX Front/Rear
(outdoor) (2 req) ...........................both .. 1670............... 39.58
20020109 Baffle, HX Front/Rear
(outdoor), (2 req) ..........................both .. 1825............... 41.49
10667701 Baffle, HX (8 tube outdoor)
(500 =qty 7; 1825=14 req)............both .. 500................... 4.20
10667702 Baffle, HX (8 tube outdoor)
(14 req) .........................................both .. 600................... 4.20
10667703 Baffle, HX (8 tube outdoor)
(14 req) .........................................both .. 715................... 4.20
10667704 Baffle, HX (8 tube outdoor)
(14 req) .........................................both .. 850................... 4.20
10667705 Baffle, HX (8 tube outdoor)
(28 req) .........................................both .. 1010................. 4.20
4
MegaTherm MT, Sizes 500,000-1,825,000 MegaTherm MT, Sizes 500,000-1,825,000
MegaTherm MT, Sizes 500,000-1,825,000
MegaTherm MT, Sizes 500,000-1,825,000 MegaTherm MT, Sizes 500,000-1,825,000
Part No. Description Model Size List Price Part No. Description Model Size List Price
10667706 Baffle, HX (8 tube outdoor)
(28 req) .........................................both .. 1200................. 4.20
10667707 Baffle, HX (8 tube outdoor)
(28 req) .........................................both .. 1430................. 4.20
10667708 Baffle, HX (8 tube outdoor)
(28 req) .........................................both .. 1670................. 4.20
10667709 Baffle, HX (8 tube outdoor)
(14 req) .........................................both .. 1825................. 4.20
10667702 Baffle, HX (8 tube outdoor)
(14 req) .........................................both .. 1825................. 4.20
10364300 Return Header
(S0098100 glassed cast iron) ......old............................147.83
10364301 Return Header
(S0064200 bronze).......................old............................298.89
10364500 Inlet/Outlet Header
(S0094300 glassed cast iron)
after s/n 4/99 w/o holes ................both ......................... 234.68
10364501 Inlet/Outlet Header
(S0064000 bronze).......................both ......................... 432.39
R10364504 Header Cover In/Out
cast iron, before s/n 4/99 w/holes ........... both.............. 235.82
10364505 Inlet/Outlet Header (service bronze)....... both..............526.01
10391303 Flange, 2-1/2" NPT Machined
(S0063600 cast iron) ....................both .. 500-1825 ....... 34.64
R10391304 Flange Kit Bronze, 2.5" Flange
w/gasket, bolts and washers................... 1000.............156.63
20130002 Adapter Tee, Flange, 2-1/2" NPT
(glassed cast iron) outlet side ......new... 500-1827 ..... 225.21
20150303 Adapter Tee, Flange 2 -1/2" NPT
(bronze) outlet side.......................new... 500-1825 ..... 344.30
10338300 Baffle, Water Inlet.........................both .............................9.22
20305101 Barrier, Water ...............................new............................34.80
S0063700 Flange Gasket (qty 2)...................both ............................. 5.88
S0095100 Header Gasket (qty 2)..................both ...........................16.03
RE2058300 Immersion Well Kit (nickel plated)....................................28.82
E0025900 Immersion Well (non plated) ............................................15.43
E0026400 Immersion Well (stainless) ............................................. 236.22
A0063300 Valve, Pressure Relief
3/4 NPT 75 psi..............................both .. 500-715 .........17.65
A0063600 Valve, Pressure Relief
3/4 NPT 75 psi..............................both .. 850-1825 .......77.49
E0013100 Flow Switch (indoor).....................new ..........................125.06
RE0013000 Flow Switch Kit (outdoor or indoor) new ........................165.92
A0021400 Pump Gasket (between pump
& pump housing) ..........................new..............................3.00
10364200 Pump Adapter (glassed cast iron) new ..........................165.67
10364201 Pump Adapter (cast bronze) ........new ..........................361.48
R10261501 Pump Housing (volute) Glassed ..new..........................346.45
10483301 Pump Housing (bronze) ...............new.......................... 670.24
10338400 Baffle, Diffuser ..............................new............................ 12.10
S0024600 Pump Housing Gasket (between
pump housing & pump adapter)...new............................ 19.74
20601500 EM2: Energy Management Monitor new..........................363.24
PUMP PARTS - NEW
20050100 Pump Cover Assy.........................all ...............................54.54
A2010500 Pump Coupler Assy
(Armstrong 1050)..........................all............................... 87.71
A2010100 Pump Module, Shaft & Bearing
(Armstrong 1050)..........................all............................. 147.45
A2010200 Seal Kit (Armstrong 1050)............all ............................... 50.94
A2010304 Impeller 4.53" dia. (Armstrong 1050) ...... 500-1670 ..... 294.34
A2010305 Impeller 4.85" dia. (Armstrong 1050) ...... 1825............. 294.34
JACKET AND COMBUSTION CHAMBER COMPONENTS
See listings in MegaTherm Models HH, PH, VW, PW and IW for common
components.
COMPLETE TILE ASSEMBLIES
See “Tile Assembly Pages” for details and dimensions.
20031901 Complete Tile Assy.......................new... 500...............375.34
20031902 Complete Tile Assy.......................new... 600...............388.73
20031903 Complete Tile Assy.......................new... 715...............514.75
20031904 Complete Tile Assy.......................new... 850...............528.15
20031905 Complete Tile Assy.......................new... 1010.............541.55
R20031906 Tile Assy HH PH IW PW VW........new... 1200.............700.14
20031907 Complete Tile Assy.......................new... 1430.............667.57
R20031908 Tile Assy HH PH IW PW VW................... 1670............. 847.27
R20031909 Tile Assy .................................................. 1825.............872.00
T0024300 Tile, End........................................new... all ................... 67.02
T2000100 Tile, Front & Rear .........................new... all ...................60.32
T2005600 Tile, Front & Rear .........................new... 500................. 60.32
T2005700 Tile, Front & Rear .........................new... 600/1010 .......67.02
T2005800 Tile, Front & Rear .........................new... 600/1430 .......67.02
T2005900 Tile, Front & Rear .........................new... 715................. 60.32
T2006000 Tile, Front & Rear .........................new... 850................. 67.02
T2006100 Tile, Front & Rear .........................new... 1010............... 67.02
T2006200 Tile, Front & Rear .........................new... 1200/1670 .....60.32
T2006300 Tile, Front & Rear .........................new... 1825............... 67.02
T2023600 Tile, Front & Rear .........................new... 715-1825 ....... 69.71
T0024302 Tile, End
s/n# before April 1999 ..................old..... all ...................93.83
T2000102 Tile, Front & Rear
s/n# before April 1999 ..................old..... all ...................56.29
T2005602 Tile, Front & Rear
s/n# before April 1999 ..................old..... 500.................60.32
T2005702 Tile, Front & Rear
s/n# before April 1999 ..................old..... 600/1010 .......57.65
T2005802 Tile, Front & Rear
s/n# before April 1999 ..................old..... 600/1430 .......79.09
T2005902 Tile, Front & Rear
s/n# before April 1999 ..................old..... 715.................56.29
T2006002 Tile, Front & Rear
s/n# before April 1999 ..................old..... 850.................53.63
T2006102 Tile, Front & Rear
s/n# before April 1999 ..................old..... 1010............... 80.43
T2006202 Tile, Front & Rear
s/n# before April 1999 ..................old..... 1200/1670 .....56.29
T2006302 Tile, Front & Rear
s/n# before April 1999 ..................old..... 1825............... 67.02
T2023602 Tile, Front & Rear
s/n# before April 1999 ..................old..... 715-1825 ....... 84.46
OUTDOOR JACKET COMPONENTS
See listings in MegaTherm Models HH, PH, VW, PW and IW for common
components.
MISCELLANEOUS
20130005 Adapter Tee, 2-1/2" NPT, C/I
(used on PW/PH w/ LWCO) inlet side .... 1010-1825 ...225.21
20150306 Adapter Tee, 2-1/2" NPT, Bronze
(used on PW/PH w/ LWCO) inlet side .... 1010-1825 ...335.13
R0010000 Tube Cleaning Kit, 7/8" Tubes ....all............................. 507.02
5
MegaTherm AP, Sizes 500,000-1,825,000 MegaTherm AP, Sizes 500,000-1,825,000
MegaTherm AP, Sizes 500,000-1,825,000
MegaTherm AP, Sizes 500,000-1,825,000 MegaTherm AP, Sizes 500,000-1,825,000
Part No. Description Model Size List Price Part No. Description Model Size List Price
CROSS REFERENCE FOR NO LONGER AVAILABLE P/N’S
10364504 Inlet/Outlet Header, (Service Glassed Cast Iron)
before s/n# April 1999 - NLA........................... use K10364504
10391304 Flange, 2-1/2" NPT Machined
(S0064400 Bronze) - NLA
10418814 Pilot Ignition Lead Assy - Spark ignition
LP & Nat - NLA ................................................ use K10418814
10529300 Complete Pilot Assy, Spark
Ignition, Nat - NLA ........................................... use K10529300
20031906 Complete Tile Assy - NLA ............................... use K20031906
20031908 Complete Tile Assy - NLA
20031909 Complete Tile Assy - NLA ............................... use K20031909
20039600 Complete Pilot Assy, Spark
Ignition, LP - NLA ............................................ use K20039600
E0013000 Flow Switch (outdoor) - NLA
E0066200 Dual Aquastat/Hi-Limit w/Manual Reset - NLAuse KE0066200
E0086100 Transformer, 115V/24V - NLA........................... use R0021300
E0100900 Ignition Control, Electronic, Nat - NLA
E2033900 Ignition Control, Electronic. Spark LP/CSD-1
(100% Lockout) - NLA ..................................... use KE2033900
E2075100 Low Water CutOff - NLA..................................use RE2075100
E2218701 Pressure Switch - NLA ................................... use KE2218701
L0052300 Burner, Main - NLA.......................................... use KL0052300
V0046600 Gas Valve, Safety, 1", On/Off & 2-Stage,
Nat - NLA........................................................ use KV0046600
V0046700 Gas Valve, Safety, 1-1/4", On/Off & 2-Stage,
Nat - NLA
V0051200 Gas Valve, Combination/Operating,
1", On/Off & 2-Stage, Nat - NLA .................... use KV0051200
V0051300 Gas Valve, Combination/Operating,
1-1/4", On/Off & 2-Stage, Nat - NLA
W0034300 Pilot Burner (Honeywell) Spark Ignition,
Nat - NLA ........................................................ use KW0034300
W0034500 Pilot Burner (Johnson) Spark Ignition,
Nat - NLA ........................................................ use KW0034500
6