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GE®appliance questions, visit our website at
ge.com or call GE Answer Center®service,
800.626.2000.
340140
Specification Revised 8/07
Listed by
Underwriters
Laboratories
JNM1851SMSS
GE Spacemaker® Over-the-Range Microwave Oven
Optional Accessories (Available at additional cost)
Hood Exhaust Duct: Outside ventilation requires a HOOD EXHAUST DUCT. Read the
following carefully.
Exhaust Connection: The hood exhaust has been designed to mate with a standard
3-1/4" x 10" rectangular duct. If a round duct is required, a rectangular-to-round
transition adaptor must be used. Do not use less than a 6" diameter duct
Rear Exhaust: If a rear or horizontal exhaust is to be used, care should be taken to
align exhaust with space between studs, or wall should be prepared at the time it is
constructed by leaving enough space between the wall studs to accommodate exhaust.
Maximum Duct Length: For satisfactory air movement, the total duct length of
3-1/4" x 10" rectangular or 6" diameter round duct should not exceed 120 equivalent feet.
Elbows, Transitions, Wall and Roof Caps, etc., present additional resistance to airflow
and are equivalent to a section of straight duct which is longer than their actual physical
size. When calculating the total duct length, add the equivalent length of all transitions
and adaptors plus the lengths of all straight duct sections. The chart below shows the
approximate feet of equivalent length of some typical ducts.
12" Filler Panel Kits
JX41–Black
JX40WH–White
15" Filler Panel Kits
JX48BL–Black
JX48WH–White
When replacing a 36" or
42" range hood, this kit fills
in the additional width to
provide a custom built-in
appearance. For installation
between cabinets only; not
for end-of-cabinet installation.
Each kit contains two 3"-wide
filler panels.
Filter KitsJX81–
Recirculating Charcoal
Filter KitTo be used
when the Spacemaker
microwave oven cannot
be vented to the outside.
Duct Equivalent Feet
A. Rectangular-To-round
Transition Adaptor 5 ft.
B. Wall Cap 40 ft.
C. 90° Elbow 10 ft.
D. 45° Elbow 5 ft.
E. 90° Elbow 25 ft.
F. 45° Elbow 5 ft.
G. Roof Cap 24 ft.
