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Find many great new & used options and get the best deals for BOSCH THERM 520 HN LP/ LIQUID PROPANE TANKLESS WATER HEATER at the best online prices at eBay! Free shipping for many products! Bosch 520 HN Gas Tankless Water Heater Repair Parts. Water Heater repair parts ship via Fedex or USPS. Most small, light weight parts on this page ship via USPS. Bosch Therm 520 HN LP Gas Valve -Non-Returnable. Old Part Number was. LOC 3983. Part Works For. Home / Residential Water Heaters / Bosch Therm 520 HN LP Indoor Propane Tankless Water Heater (DISCONTINUED) THIS MODEL IS DISCONTINUED At 117,000 BTU/hr maximum input, the Bosch Therm 520 HN LP produces enough power for running a shower and a sink simultaneoulsy. THIS MODEL IS DISCONTINUED The Bosch Therm 520 PN LP is the perfect tankless solution for smaller families and households that only use no more than two hot water applications at a time. 78%+ thermal efficiency 5.3 gallons per minute capacity at 35F degree rise Vents with galvanized B vent, natural draft. Bosch installation guide and manuals. Installation Manuals. PDF file format (These files open in a new window or you can right mouse click on the file and choose 'Save Target As').
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6 720 607 026
Fig. 15
INTERIOR COMPONENTS DIAGRAM
AND PARTS LIST 425 HN
1
Cover
8 705 421 752
2
Temperature adjustment knob
8 702 000 111
3
Temperature adjustment collar
8 700 403 008
4
Draft diverter
8 705 505 354
5
Heat exchanger
Bosch 520 Pn Lp Manual
8 705 406 235 Airport utility download page.
7
Main burner
8 708 120 298
NG
7
Main burner
8 708 120 296
LP
8
Burner assembly washer
8 710 103 060
9
Throttle disc
8 700 100 174
LP
10
Pilot burner
8 708 105 491
LP
10
Pilot burner
8 718 105 051
NG
11
Pilot electrode
8 708 107 006
12
Pilot orifice
8 708 200 069
NG
12
Pilot orifice
8 708 200 312
LP
13
Pilot tube
8 700 707 370
14
Washer pilot tube
8 700 103 173
15
Gas valve
8 707 011 917
NG
15
Gas valve
8 707 011 945
LP
16
Diaphragm switch
8 708 504 021
NG
16
Diaphragm switch
Tractor manuals download. 8 708 504 049
Bosch 520 Hn Lp Manual
LP
17
Pilot electrovalve
8 708 501 249
18
Burner electrovalve
8 708 501 250
19
O-ring
8 700 205 023
20
Hydro-generator
8 707 406 043
21
Cold water pipe
8 700 705 947
22
Outlet flex hose
8 700 703 139
23
Washer
8 700 103 658
24
Water valve
8 707 002 649
25
Water valve cover
8 705 500 101
26
Diaphragm
8 700 503 053
27
Water inlet filter
8 700 507 001
28
Water valve selector screw
8 708 500 289
29
Volumetric water governor
8 705 705 009
30
Venturi
8 708 205 279
31
Electronic control box
8 707 207 085
32
Flame sensor cable
8 704 404 040
33
Electrode cable
8 704 404 039
34
Flue Gas Sensor
8 707 206 345
35
Set of cables
8 704 404 038
36
Pushrod
8 700 306 114
37
O-ring
8 700 205 120
38
O-ring
8 700 205 119
39
Water connection gasket
8 710 103 043
40
Water elbow fitting
8 700 703 114
41
Overheat sensor (ECO)
8 707 206 040
42
Connecting pipe hot
8 700 715 178
43
Washer
8 710 103 045
44
Flame sensor
8 708 107 007
45
Water valve set screw
8 703 401 051
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