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105843
OWNER’S MANUAL
PARTS LIST
D20H MODEL
This list contains replaceable parts used in your heater. When ordering parts, be sure to
provide the correct model and serial numbers (from the model plate), then the part number
and description of the desired part.
KEY PART
NO. NUMBER DESCRIPTION QTY.
1 105793-01 ON/OFF Switch 1
2 M50901-02BT Upper Shell 1
3 079919-01 Switch Cover 1
4 102432-01 Screw/Lockwasher, 1/2" 6
5 098512-64 Combustion Chamber 1
6 M10908-2 Screw, #6-32 x 3/8" 2
7 103154-03 Photocell Bracket 1
8 M16656-23 Photocell Assembly 1
9 *** Burner Strap Assembly 1
9-1 100735-25 Nozzle Assembly 1
9-2 102548-05 Ignitor Kit 1
9-3 104056-01 Nozzle Adapter 1
9-4 102336-01 Nozzle Adapter Bracket 1
9-5 M10908-75 Screw, #6-32 x 7/8" 1
9-6 103347-01 Belleville Washer 1
10 102431-01 Screw/Lockwasher, 1/2" 2
11 103684-01 Fan 1
12 *** Motor and Pump Assembly 1
12-1 102001-23 Motor (230V/50 Hz) 1
12-2 079975-02 Pump Body 1
12-3 M22009 Insert 1
12-4 M22456-1 Rotor 1
12-5 M29608 Pump End Cover 1
12-6 M29632 Lint Filter 1
12-7 M29633 Intake Filter 1
12-8 M29609 Filter End Cover 1
12-9 M12461-31 Screw, #10-32 x 1" 3
12-10 M27694 Adjusting Screw 1
12-11 M10993-1 Pressure Relief Spring 1
12-12 M22997 Plug 1
12-13 M8940 Steel Ball, 1/4" Diameter 1
12-14 M29612-01 Output Filter 1
12-15 M12461-31 Screw #10-32 x 1" 6
12-16 103676-01 Nylon Elbow, 90° 1
12-17 M8643 Blade 4
12-18 FHPF3-5C Screw, #10-32 x 5/8" 2
KEY PART
NO. NUMBER DESCRIPTION QTY.
*** Not available as an assembly; order parts separately
12-19 105780-01 Plastic Cap 1
13 M51105-01 Fan Guard 1
14 079673-07 Power Cord 1
15 M50400 Strain Relief Bushing 1
16 NTC-4C Hex Lock Nut, 1/4-20 2
17 102431-01 Screw/Lockwasher, 1/2" 4
18 M50631 Rubber Bumper 2
19 097461-03AA Side Cover 1
20 101205-01 Motor Bracket 1
21 M30865-02 Bushing 1
22 M11271-8 Clip Nut 6
23 M50104-02 Bushing 1
24 102431-01 Screw/Lockwasher, 1/2" 6
25 RF3-5B Screw, #10-32 x 5/8" 1
26 098511-235 Lower Shell 1
27 M50814-06 Rubber Airline 1
28 M29652-05 Fuel Line 1
29 M50876-05 Fuel Filter with bushing 1
30 M10990-3 Rubber Bushing 1
31 102861-01 Nylon Locknut 1
32 102349-01 PCB Support 5
33 104068-04 Ignition Control Assembly 1
34 097702-01 Fuel Cap (Includes Gasket) 1
35 098513-102 Fuel Tank 1
36 079010-40 Wire Assembly (White) 1
37 NPF-3B Nut, #10-32 3
38 097785-01 Vinyl Foam Gasket 1
39 WLE-3 Lockwasher, #10 1
40 079010-39 Wire Assembly (Brown) 1
PARTS AVAILABLE - NOT SHOWN
HA2210 Filler Neck Screen 1
103814-01 Wire Tie 1
103238-01 Tradename Decal 2
105852-01 Decal Package 1