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Dunkirk
Boiler

Model # Q90-50 Official Dunkirk boiler & storage tank

Here are the diagrams and repair parts for Official Dunkirk Q90-50 boiler & storage tank, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Installation guide
Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 119 parts  |
Transformer 146-62-801
#8

Jacket/base assy diagram

Transformer

Part #146-62-801

Replaced by #550001339

?
Manufacturer substitution
This part replaces 146-62-801. Substitute parts can look different from the original.
$69.09
In Stock
Drain Valve 146-22-000
#19

Boiler block/piping assy diagram

Drain valve

Part #146-22-000

Replaced by #31-606-04

?
Manufacturer substitution
This part replaces 146-22-000. Substitute parts can look different from the original.
$36.16
In Stock
Burner 146-31-007
#2B

Mixer/air pressure switch assy diagram

Burner

Part #146-31-007

Replaced by #550001811

?
Manufacturer substitution
This part replaces 146-31-007. Substitute parts can look different from the original.
$359.63
In Stock
Blower 146-31-077
#5

Flue adapter/exhauster assy diagram

Blower

Part #146-31-077

Replaced by #2272065

?
Manufacturer substitution
This part replaces 146-31-077. Substitute parts can look different from the original.
$543.40 | 
$12.00 OFF Phone Price : $555.40
In Stock
Relief Valve 146-22-011
#6

Boiler block/piping assy diagram

Relief valve

Part #146-22-011

Replaced by #10-408-05

?
Manufacturer substitution
This part replaces 146-22-011. Substitute parts can look different from the original.
$44.77 | 
12% OFF Phone Price : $50.77
In Stock
Circulator 146-26-045
#NI

Jacket/base assy diagram

Circulator

Part #146-26-045

Replaced by #103251

?
Manufacturer substitution
This part replaces 146-26-045. Substitute parts can look different from the original.
$224.79 | 
5% OFF Phone Price : $236.79
In Stock
Furnace Burner Igniter (replaces 438-00-014) 438-00-013
#11A

Mixer/air pressure switch assy diagram

Furnace burner igniter (replaces 438-00-014)

Part #438-00-013

The manufacturer no longer makes this part, and there's no substitute part

Brass Barb Fitting 146-31-005
#32

Boiler block/piping assy diagram

Brass barb fitting

Part #146-31-005

The manufacturer no longer makes this part, and there's no substitute part

Base 750-00-1025
#6

Jacket/base assy diagram

Base

Part #750-00-1025

The manufacturer no longer makes this part, and there's no substitute part

Igniter 438-00-014
#11B

Mixer/air pressure switch assy diagram

Igniter

Part #438-00-014

The manufacturer no longer makes this part, and there's no substitute part

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