A.O. Smith 520 Direct Vent Indoor Manuals

Manuals and User Guides for A.O. Smith 520 Direct Vent Indoor. We have 1 A.O. Smith 520 Direct Vent Indoor manual available for free PDF download: Service Manual

A.O. Smith 520 Direct Vent Indoor Service Manual

A.O. Smith 520 Direct Vent Indoor Service Manual (97 pages)

on-demand

Brand: A.O. Smith | Category: Water Heater | Size: 6.68 MB

Table of Contents

Table of Contents

2
Component Specifications

17
- Burners
  18
  - Gas Manifold
    19
  - Fan Motor
    20
  - Fan Motor for Exhaust
    21
  - Gas Valve Assembly
    22
  - Flame Rod
    23
  - AFR Rod
    24
  - Heat Exchanger
    25
  - Secondary Heat Exchanger
    26
- Flow Sensor
  27
- Water Control Valve
  28
- Thermistors
  30
- Exhaust Thermistor
  31
- Hi-Limit Switch
  32
- Hi-Limit Switch for Exhaust
  33
- Overheat Cutoff Fuse
  34
- Freeze Protection Heaters
  35
- Computer Board
  36
- Transformer
  37
- Igniter
  38
- Freeze Protection Thermostat
  39
- Surge Box
  40
- Fault Analysis & Specifications
  41
12. Controls and Settings

54

Advertisement

Advertisement

Related Products

A.O. Smith Categories

Water Heater Water Filtration Systems Boiler Water Dispenser Heat Pump

More A.O. Smith Manuals