Operating instructions
58
C
ALL
OUT DESCRIPTION 207A 267A 337A 407A
BB BURNER TRAY***
1-B Burner Tray w/Burners (0-5000) 010343F 010344F 010345F 010346
B
urner Tray w/o Burner (0-5000)
0
10084F
0
10085F
0
10086F
0
10087
2-B Burner Hold Down Kit 010254F 010255F 010256F 010257
3-B Burner 310732/3 310732/4 310732/5 310732
4-B Burner Orifice Nat. #26 (0-5000)* 351632/3 351632/4 351632/5 351632
B
urner Orifice Nat. #31 (above 5000 ft.)*
3
51523/3
3
51523/4
3
51523/5
3
51523
5-B Blower 010042F 010042F 010042F 010042
7-B Cooling Fan 010871F 010871F 010871F 01087
6-B Combustion Air Orifice Plate 010338F 010339F 010340F 01034
C CONTROLS
1-C Thermostat Auto Reset 135 Deg Surface Mount 006725F 006725F 006725F 006725
2-C AGS 135° (Auto Gas Shut-Off) - Red Epoxy 600892B 600892B 600892B 600892
3-C High Limit 140° - Black Epoxy 600893B 600893B 600893B 600893
4-C P. C. Board/Control
Units manufactured prior to 1/2011 013489F 013489F 013489F 013489
Units manufactured from 1/2011 013464F 013464F 013464F 013464
6-C Tem p e rat ure Sensor 009577F 009577F 009577F 009577
7-C Blower Pressure Switch 008062F 008135F 010354F 010355
G GAS VALVE
1-G Combination Valve - Gas On/Off -Nat 010329F 010329F 010329F 010329
HP HEAT EXCHANGER - POLYMER
1-HP Heat Exchange Assy Copper 010043F 010044F 010045F 010046
Heat Exchange Assy Cupro Nickel 010356F 010357F 010358F 010359
2-HP Inlet/Outlet Header Complete 006827F 006827F 006827F 006827
Inlet/Outlet Header (Includes 6-HP) 006706F 006706F 006706F 006706
3-HP Return Header (Includes 6-HP) 006707F 006707F 006707F 006707
4-HP Tube Bundle Copper ** 010059F 010060F 010061F 010062
Tube Bundle Cupro Nickel ** 010364F 010365F 010366F 010367
5-HP Baffle 010038F 005261F 010040F 01004
6-HP Flange Nut Kit 008259F 008259F 008259F 008259
7-HP O Ring Gasket (2) 006713F 006713F 006713F 006713
8-HP Sensor Adapter Digital Electronic 006714F 006714F 006714F 006714
Sensor Well Millivolt 006805F 006805F 006805F 006805
9-HP Bypass Kit 006715F 006715F 006715F 006715
10-HP Bypass Valve 006716F 006716F 006716F 006716
11-HP Bypass Dam / Shaft 006717F 006717F 006717F 006717
12-HP Bypass Spring (All Sizes Included) 006718F 006718F 006718F 006718
13-HP Unitherm Governor 006719F 006719F 006719F 006719
14-HP Unitherm Governor Plug 006720F 006720F 006720F 006720
15-HP Drain Plug 006721F 006721F 006721F 00672
16-HP Inlet/Outlet Header Dam N/A Use 19-HP N/A Use 19-HP N/A Use 19-HP N/A Use 1
17-HP 2" PVC Connector & Nut (2) 006723F 006723F 006723F 006723
18-HP O Ring (2) 006724F 006724F 006724F 006724
19-HP Inlet/Outlet Header Baffle w/Header Dam 006826F 006826F 006826F 006826
HM HEAT EXCHANGER - METAL
1-HM Heat Exchange Assy.Copper ASME CI 010051F 006727F 010053F 010054
Heat Exchange Assy.Cupro Nickel ASME CI 010360F 010361F 010362F 010363
2-HM Inlet/Outlet Header ASME CI (Complete) 006730F 006730F 006730F 006730
Inlet/Outlet Header ASME CI 012319F 012319F 012319F 012319
15-HM Inlet & Outlet Flange 003766F 003766F 003766F 003766
16-HM Flange Gasket 1 1/2" Connections 062236B 062236B 062236B 062236
Flange Gasket 2" Connections 800080B 800080B 800080B 800080
3-HM Return Header ASME CI 006731F 006731F 006731F 00673
4-HM Tube Bundle Copper ASME ** 010055F 006733F 010057F 010058
Tube Bundle Cupro Nickel ASME ** 010368F 010369F 010370F 01037
5-HM Baffle 010038F 005261F 010040F 01004
6-HM Stud Bolt Kit 007870F 007870F 007870F 007870
7-HM Header Gasket (9) 800014B 800014B 800014B 800014
8-HM Unitherm Governor 062234B 062234B 062234B 062234
9-HM U.G. Retainer Spring 850254 850254 850254 85025
10-HM Bypass Valve 062235B 062235B 062235B 062235
11-HM Bypass Spring 850252 850253 850253 85025
12-HM Drain Valve 500719 500719 500719 50071
13-HM Sensor Well 003765F 003765F 003765F 003765
14-HM Well Retaining Clip 300203 300203 300203 30020
17-HM Rear Drain Plug & Cover 005264F 005264F 005264F 005264
*FOR INSTALLATIONS AT OVER 5,000 FEET ABOVE SEA LEVEL, CONSULT THE FACTORY
**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.
LO NOx HEATERS










