P/N 474131 Rev. M 8/2020 MasterTemp Pool and Spa Heater
63
MASTERTEMP REPLACEMENT PARTS
Section 5. Replacement Parts
REPAIR PARTS – BURNER SYSTEM
Model
Key Part 200NA 300NA 400NA
No. Description
Qty.
200LP 300LP 400LP
1 Combination Gas Control Valve Kit 42001-0051S 42001-0051S 42001-0051S
23/4" Union
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
38404-4097S 38404-4097S 38404-4097S
3Gas Orifice
4Gas Orifice O-Ring
•Gas Orifice Kit – NG (Incl. Key Nos. 3 and 4)† 77707-0431 460753 77707-0411
•Gas Orifice Kit – Propane (Incl. Key Nos. 3 and 4)† 77707-0461 460754 77707-0441
•NG to Propane Conversion Kit
(Incl. Key Nos. 3 and 4)† 77707-1461 460755 77707-1441
•Propane to NG Conversion Kit
(Incl. Key Nos. 3 and 4)† 77707-1431 460756 77707-1411
5Air Blower Kit
Natural Gas Units 77707-0251 460757 77707-0253
Propane Units 77707-0254 460758 77707-0256
•Air Orifice Kit (Includes Key Nos. 6 and 7) 77707-0111 460759 77707-0113
6Air Orifice
7Air Orifice Grill 42001-0114S 42001-0114S 42001-0114S
•Blower/Adapter Plate Gasket Kit
(Includes Key Nos. 8, 9, 10, 12) 77707-0011 77707-0011 77707-0011
•Flameholder Kit (Includes
Key Nos. 10, 11, 12, 13 and on 300 & 400
models only - Flameholder Insert) 77707-0202 77707-0203 77707-0204
8Blower/Adapter Plate Gasket
9Blower Adapter Plate
10 Flameholder/Adapter Plate Gasket
11 Flameholder Assembly
12 Flameholder/Combustion Chamber Gasket*
13 Flameholder Insulation Cap
•Flameholder Insert
14 Condensate Evaporator Plate
15 One Piece Metal Chamber/Combustion Chamber
Assembly
474095 474095 474095
•Insulation Kit (Includes Key No. 13, 14, 16, 17,18,19)
77707-0008 77707-0008 77707-0008
16 Bottom Outer Insulation Blanket*
17 1" Bottom Inner Insulation
18 1" Top Insulation
19 Top Outer Insulation Blanket*
• Lower Enclosure Insulation 42001-0074S 42001-0074S 42001-0074S
20 One Piece Metal Elbow/Combustion Chamber
Cover Assembly 474094 474094 474094
21 Metal Vent Cover 42002-0005S 42002-0005S 42002-0005S
Cover Assembly 42001-0214S 42001-0214S 42001-0214S
22 Heater Top 42002-0034Z 42002-0034Z 42002-0034Z
Side Panel {Service Panel} 42002-0039 42002-0039 42002-0039
24 Side Panel {Manifold} 42002-0033 42002-0033 42002-0033
Heater Bottom 42002-0031 42002-0031 42002-0031
26
25
23
Side Panel {Flue Stack} 42002-0032 42002-0032 42002-0032
27 J-Box Cover 42002-0041 42002-0041 42002-0041
28 Screw Kit, Panel
* Not available separately.
†
Not included with heater. Order separately .
For heaters manufactured between 1/12/2009 and 10/31/2013 (clamp lid tub design)
Note: Kits also include Clamp Assembly, O-Ring and Silicon Tube.
•
Combustion Chamber O-Ring Kit
474958 474958 474958
1
1
1
1
1
1
1
1
1
1
1
474957
Combustion Air Intake Duct Connection Kit
•
1 461031 461031 461031
474292 474292 474292
For heater manufactured AFTER 10/31/2013 (New 9-bolt lid tub design)
474952 474952 474952
For heater manufactured BEFORE 1/12/2009
42001-0200S 42001-0200S
474957
42001-0214S 42001-0214S
474201 474201
474201
42001-0214S
474957
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