Instructions / Assembly

ManualsBrandsRaypak ManualsOutdoorsPR206AENX51 180,000 BTU Natural Gas Electronic Ignition Heater - Cupro Nickel Exchanger

CALL OUT DESCRIPTION 206A 266/266A 399/406A

B BURNER TRAY

1-B Burner Tray w/Burners (sea level)* 010391F 010392F 010394F

Burner Tray w/o Burners (sea level)* 010395F 010396F 010398F

Burner Tray w/Gas Valve Nat Millivolt 010399F 010400F 010402F

Burner Tray w/Gas Valve Pro Millivolt 010403F 010404F 010406F

Burner Tray w/Gas Valve Nat IID 010407F 010408F 010410F

Burner Tray w/Gas Valve Pro IID 010411F 010412F 010414F

2-B Burner Spacer/Hold Down Kit 010415F 010416F 010418F

3-B Burner 301210/13 301210/18 301210/27

4-B Burner Orifice

Natural Gas

Burner Orifice #50* 350079F/13 350079F/18 350079F/27

Burner Orifice #51* 350080F/13 350080F/18 350080F/27

Burner Orifice #52* 350081F/13 350081F/18 350081F/27

Burner Orifice #53* 350347F/13 350347F/18 350347F/27

Propane Gas

Burner Orifice #57* 350083F/13 350083F/18 350083F/27

Burner Orifice #58* 350087F/13 350087F/18 350087F/27

Burner Orifice #59* 350350F/13 350350F/18 350350F/27

Burner Orifice #60* 350351F/13 350351F/18 350351F/27

Burner Orifice #61* 350352F/13 350352F/18 350352F/27

5-B Burner Tray w/o Manifold w/o burners 010421F 010422F 010424F

C CONTROLS

1-C High Limit Auto Reset 135°F Deg Surface Mount 006725F 006725F 006725F

2-C AGS 135°F (Auto Gas Shut-Off) - Red Epoxy - prior to 12/2019 600892B 600892B 600892B

3-C High Limit 140°F - Black Epoxy - prior to 12/2019 600893B 600893B 600893B

4-C P.C. Board/Control 013464F 013464F 013464F

7-C LCD Display

Units manufactured from 5/2011 013640F 013640F 013640F

8-C Fuse 5 AMP 013733F 013733F 013733F

5-C Thermostat Control MV Units Mechanical 003346F 003346F 003346F

6-C Temperature Sensor IID Units 009577F 009577F 009577F

9-C High Limit Auto Reset 150°F Surface Mount (ASME Only) 018304F 018304F 018304F

G GAS VALVE

1-G Combination Valve - Nat. MV 003898F 003898F 003898F

Combination Valve - Pro. MV 003899F 003899F 003899F

Combination Valve - Nat. IID 003900F 003900F 003900F

Combination Valve - Pro. IID 004306F 004306F 004306F

HP HEAT EXCHANGER - POLYMER

1-HP Heat Exchanger Assy Copper ***

Units manufactured from 10/2019 017994F 017995F 017997F

Units manufactured prior to 10/2019 010043F 010044F 010046F

Heat Exchanger Assy Cupronickel ***

Units manufactured from 10/2019 017998F 017999F 018001F

Units manufactured from 7/2013 thru 9/2019 014926F 014927F 014929F

Units manufactured prior to 7/2013 010356F 010357F 010359F

2-HP Inlet/Outlet Header Complete

Units manufactured from 10/2019 017959F 017959F 017959F

Units manufactured prior to 10/2019 006827F 006827F 006827F

Inlet/Outlet Header (Includes 6-HP)

Units manufactured from 10/2019 017965F 017965F 017965F

Units manufactured prior to 10/2019 014648F 014648F 014648F

3-HP Return Header (Includes 6-HP) 015095F 015095F 015095F

4-HP Tube Bundle Copper ** & *** 010059F 010060F 010062F

Tube Bundle Cupronickel ** & ***

Units manufactured from 7/2013 014930F 014931F 014933F

Units manufactured prior to 7/2013 010364F 010365F 010367F

5-HP Baffle (Copper Heat Exchanger) 010038F 005261F 010041F

Baffle (Cupronickel Heat Exchanger)

Units manufactured from 6/2013 014934F 014935F 014937F

Units manufactured prior to 6/2013 010038F 005261F 010041F

6-HP Flange Nut Kit 008259F 008259F 008259F

7-HP O Ring Gasket (2) 006713F 006713F 006713F

8-HP Sensor Adapter Digital Electronic 006714F 006714F 006714F

Sensor Well Millivolt 006805F 006805F 006805F

9-HP Bypass Kit 006715F 006715F 006715F

10-HP Bypass Valve 006716F 006716F 006716F

11-HP Bypass Dam / Shaft 006717F 006717F 006717F

12-HP Bypass Spring (All Sizes Included) 006718F 006718F 006718F

13-HP Unitherm Governor 006719F 006719F 006719F

14-HP Unitherm Governor Plug 006720F 006720F 006720F

15-HP Drain Plug 006721F 006721F 006721F

16-HP Inlet/Outlet Header Dam

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

18-HP O Ring (2) 006724F 006724F 006724F

19-HP Inlet/Outlet Header Baffle w/Header Dam 006826F 006826F 006826F

20-HP ProTek Shield

Assembly 017960F 017960F 017960F

**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.

***WARNING: Copper and Cupronickel heat exchangers and tube bundles are not

interchangeable. Units with suffix "C" must use copper replacement parts

and units with suffix "X" must use Cupronickel replacement parts.

*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.