Midco J121-DS Parts List

Replacement Parts

List

• Features S87D Honeywell Electronic Control.

Incinomite Model J121-DS

Installation and Service Manual - 8471 15

Date Code - 5099 or later

Midco® International Inc.
4140 West Victoria Street
Chicago, Illinois 60646
toll free 866.705.0514
tel [phone]
fax [phone]
web www.midcointernational.com
e-mail [e-mail]

• First production December 21, 1999 (date code 5099).

• Model J121-DS ignitor assembly features an air adjustment screw to modify gas air ratios or
improved pilot light off with air shutters full open.

• Model J121-DS Features S89E Special J121-DS with 120 volt ignition transformer (date
coded - 2002 )

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.

1012

Quality Designed for Proven Performance

8472 72

Printed in USA

Exploded View

5734-50

6416-90

Refer to listing for proper application

2

Midco International Inc.