C
ALL
OUT DESCRIPTION 206A 266A 336A 406A
B BURNER TRAY
1-B Burner Tray w/Burners (sea level)* 010391F 010392F 010393F 010394F
B
urner Tray w/o Burners (sea level)*
0
10395F
0
10396F
0
10397F
0
10398F
B
urner Tray w/Gas Valve Nat Millivolt
0
10399F
0
10400F
0
10401F
0
10402F
Burner Tray w/Gas Valve Pro Millivolt 010403F 010404F 010405F 010406F
Burner Tray w/Gas Valve Nat IID 010407F 010408F 010409F 010410F
Burner Tray w/Gas Valve Pro IID 010411F 010412F 010413F 010414F
2-B Burner Spacer/Hold Down Kit 010415F 010416F 010417F 010418F
3-B Burner 301210/13 301210/18 301210/22 301210/27
4-B Burner Orifice
Natural Gas
Burner Orifice #50* 350079F/13 350079F/18 350079F/22 350079F/27
Burner Orifice #51* 350080F/13 350080F/18 350080F/22 350080F/27
Burner Orifice #52* 350081F/13 350081F/18 350081F/22 350081F/27
Burner Orifice #53* 350347F/13 350347F/18 350347F/22 350347F/27
Propane Gas
Burner Orifice #57*
3
50083F/13
3
50083F/18
3
50083F/22
3
50083F/27
Burner Orifice #58* 350087F/13 350087F/18 350087F/22 350087F/27
Burner Orifice #59* 350350F/13 350350F/18 350350F/22 350350F/27
Burner Orifice #60* 350351F/13 350351F/18 350351F/22 350351F/27
Burner Orifice #61* 350352F/13 350352F/18 350352F/22 350352F/27
5-B Burner Tray w/o Manifold w/o burners 010421F 010422F 010423F 010424F
C CONTROLS
1
-C
T
hermostat Auto Reset 135 Deg Surface Mount
0
06725F
0
06725F
0
06725F
0
06725F
2-C AGS 135° (Auto Gas Shut-Off) - Red Epoxy 600892B 600892B 600892B 600892B
3-C High Limit 140° - Black Epoxy 600893B 600893B 600893B 600893B
4-C P. C. Board/Control 013464F 013464F 013464F 013464F
7-C LCD Display
Units manufactured prior to 5/2011 N/A N/A N/A N/A
Units manufactured From 5/2011 013640F 013640F 013640F 013640F
8-C
F
use 5 AMP
0
13733F
0
13733F
0
13733F
0
13733F
5
-C
T
hermostat Control MV Units Mechanical
0
03346F
0
03346F
0
03346F
0
03346F
6-C Temperature Sensor IID Units 009577F 009577F 009577F 009577F
G GAS VALVE
1-G Combination Valve - Nat. MV 003898F 003898F 003898F 003898F
C
ombination Valve - Pro. MV
0
03899F
0
03899F
0
03899F
0
03899F
C
ombination Valve - Nat. IID
0
03900F
0
03900F
0
03900F
0
03900F
Combination Valve - Pro. IID 004306F 004306F 004306F 004306F
HP HEAT EXCHANGER - POLYMER
1
-HP
H
eat Exchange Assy Copper ***
0
10043F
0
10044F
0
10045F
0
10046F
Heat Exchange Assy Cupro Nickel ***
Units manufactured prior to 7/2013 010356F 010357F 010358F 010359F
Units manufactured From 7/2013 014926F 014927F 014928F 014929F
2-HP Inlet/Outlet Header Complete 006827F 006827F 006827F 006827F
Inlet/Outlet Header (Includes 6-HP) 014648F 014648F 014648F 014648F
3-HP Return Header (Includes 6-HP) 015095F 015095F 015095F 015095F
4-HP Tube Bundle Copper ** & *** 010059F 010060F 010061F 010062F
Tube Bundle Cupro Nickel ** & ***
Units manufactured prior to 7/2013 010364F 010365F 010366F 010367F
Units manufactured From 7/2013 014930F 014931F 014932F 014933F
5-HP Baffle (Copper Heat Exchanger) 010038F 005261F 010040F 010041F
Baffle (Cupro Nickel Heat Exchanger)
Units manufactured prior to 6/2013 010038F 005261F 010040F 010041F
Units manufactured From 6/2013 014934F 014935F 014936F 014937F
6-HP Flange Nut Kit 008259F 008259F 008259F 008259F
7-HP O Ring Gasket (2) 006713F 006713F 006713F 006713F
8-HP Sensor Adapter Digital Electronic 006714F 006714F 006714F 006714F
Sensor Well Millivolt 006805F 006805F 006805F 006805F
9-HP Bypass Kit 006715F 006715F 006715F 006715F
10-HP Bypass Valve 006716F 006716F 006716F 006716F
11-HP Bypass Dam / Shaft 006717F 006717F 006717F 006717F
12-HP Bypass Spring (All Sizes Included) 006718F 006718F 006718F 006718F
13-HP Unitherm Governor 006719F 006719F 006719F 006719F
14-HP Unitherm Governor Plug 006720F 006720F 006720F 006720F
15-HP Drain Plug 006721F 006721F 006721F 006721F
16-HP Inlet/Outlet Header Dam N/A Use 19-HP N/A Use 19-HP N/A Use 19-HP N/A Use 19-HP
17-HP 2" CPVC Connector & Nut (2) 006723F 006723F 006723F 006723F
18-HP O Ring (2) 006724F 006724F 006724F 006724F
19-HP Inlet/Outlet Header Baffle w/Header Dam 006826F 006826F 006826F 006826F
*FOR INSTALLATION AT OVER 2,000 FEET ABOVE SEA LEVEL, DERATE 4% PER I,000 FEET ABOVE SEA LEVEL. Refer to the heater's rating plate.
**WARNING: The Hydraulic conditions or water chemistry that caused the tube bundle to fail have very likely also
damaged the bypass valve and Unitherm Governor. We recommend you replace the Unitherm Governor and
inspect the bypass assembly. Failure to do so could cause premature failure of this replacement part.
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