
Replacement Parts
List
MADE in the USA
Model Economite
400B-02 & 400B-02P
Installation and Service Manual - 8470-75
Date Code - 2194
• First Construction Date: May 1, 1994
• Supersedes Model 400A-02.
Midco® International Inc.
4140 West Victoria Street
Chicago, Illinois 60646
toll free 866.705.0514
tel 773.604.8700
fax 866.580.8700
web www.midcointernational.com
e-mail sales@midcointernational.com
AVOID ERROR IN PARTS SELECTION. When ordering use complete MIDCO Part Number and Description. Furnish
Burner Model Number, Bill of Material Number and Serial Number (if available) from the specifi cation plate found on the
product.
IMPORTANT: Availability of parts as well as specifi cations are subject to change without notice. Please consult factory for
item availability.
Quality Designed for Proven Performance
8472 65
Printed in USA
414

400B-02 & 400B-02P Exploded View
4009-00
6252-60
2
Midco International Inc.
8472 65

400B-02 & 400B-02P Parts List
Item Part # Description Qty Item Part # Description Qty
3981-00 4″ Dia. Stainless Nozzle Sleeve
4009-00 400 Stand Leg
4914-50 External Air Shutter
4916-00 Motor Mounting Ring less Rubber
Mounts and Nuts
4917-00 Main Orifi ce Holder
4918-01 Orifi ce Elbow (3/4″ NPT)
4919-00 Blower Wheel complete with Centrifugal
Actuator and Disc
4919-90 Centrifugal Actuator Disc
4924-10 Inlet Side Plate
4944-01 Main Spud 11/32 Drill (.343) minimum
capacity-NATURAL
4944-02 Main Spud-25/64 Drill (.390) maximum
capacity-NATURAL
4944-03 Main Spud #21 Drill (.159) minimum capacity-
PROPANE-Drill for desired capacity
per manual
4944-10 Main Spud Extension
5201-90 400-Series Rubber Seal Strip
5211-20 Motor Wheel, Side Plate and Cage
Assembly-120/1/60
5216-50 Motor less Mounting Ring and Rubber Mounts
120/1/60 (Universal Electric JB2P048N#;
Fasco 7163-7511)
5225-38 Blower Housing and Blast Tube Assembly
5269-00 Blower Interlock Switch with Bracket
5278-00 3 Rubber Mounts and Nuts
5295-00 Pilot Burner Weldment-order Pilot Orifi ce
separately
1
5734-50
Transformer 115/1/50-60 Primary, 24V-30VA
Secondary (Prod. Unlimited 4000-01M07J232,
4000-01M07K232; Basler BE121630GDD,
BE121630GAA)
6215-70 Terminal Strip only
6252-50 Spark Rod Insulator Sleeve
6252-90 Spark Electrode
6256-30 Piezo Ignitor Kit
6274-50 Spark Electrode Gasket
8406-58 Motor Switching Relay-24 volt (Prod. Unlimited
9400-01Q2232)
1
8419-46
3/4″ 3-Function Main Valve with Regulator
(M-H V800A1328)-Natural Gas
1
8419-47
3/4″ 3-Function Redundant Main Valve
(M-H VR8300A4003)-LP must be used with
8419-49 #393691 for LP Gas only
8419-49
1
LP Regulator Kit #393691. Must be used with
VR8300A4003.
8423-16 Blower Interlock Switch (Micro BZ2RQ174-A2)
8432-09 O-Ring Seal
8432-10 1″ O.D. O-Ring Gasket for Piezo Ignitor
8433-06 Pilot Orifi ce 3221-021 Natural Gas
8433-08 Pilot Orifi ce 4212-012 LP Gas
8442-02 30″ Thermocouple
8450-21 Orifi ce Holder Sealing Gasket
2020100 4″ Dia. Mounting Flange
2020400 4″ Long Accessory Blast Tube Extension
2020500 8″ Long Accessory Blast Tube Extension
Not Shown
4912-10 Motor Conduit with hardware
5292-00* DS45B/400B-02 LP Gas Valve Wire
5299-00* 400B Valve Wire Natural Gas
8470-75* Installation and Service Manual
NOTES
1
WARNING: EXPLOSION HAZARD. CAN CAUSE SERIOUS INJURY OR DEATH. AN ELECTRONIC DEVICE
CAN MALFUNCTION IF IT GETS WET. NEVER TRY TO USE A DEVICE THAT HAS BEEN WET-REPLACE IT.
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Midco International Inc.
3

Exploded View
MADE in the USA
Midco® International Inc. - 4140 West Victoria Street - Chicago, Illinois 60646 - toll free: 866 705 0514
4
tel: 773.604.8700 - fax: 866.580.8700 - web: www.midcointernational.com - e-mail: sales@midcointernational.com
414
8472 65
Printed in USA