OVER THE RANGE INSTALLATION INSTRUCTIONS Models: MHOTR241W MHOTR242B MHOTR243SS BEFORE USE, PLEASE READ AND FOLLOW ALL SAFETY RULES AND OPERATING INSTRUCTIONS FELIX STORCH, INC. An ISO 9001:2015 registered company 770 Garrison Avenue Bronx, NY 10474 www.summitappliance.
TABLE OF CONTENTS General Information 3-8 Before you Begin 3 Important Safety Instructions 3 Electrical Requirements 4 Hood Exhaust 4-6 Parts Included 7 Installation Accessories 7 Tools Needed 7 Mounting Space 8 Installation Instructions 9-25 Placing the Mounting Plate 9 Finding your Wall Studs 9 Finding the Top Line Under your Cabinet 10-12 Aligning the Top Line of your Rear Wall Template 13 Installation Types 14 Installation Instructions for Outside Top Exhaust 15-18 Instal
GENERAL INFORMATION This installation guide will show you how to install your new over-the-range microwave. Before you Begin Read these instructions completely and carefully. • IMPORTANT – Save these instructions for local inspector’s use. • IMPORTANT – Observe all governing codes and ordinances. • Note to Installer – Be sure to leave these instructions with the consumer. • Note to Consumer – Keep these instructions for future reference.
Electrical Requirements The product rating of your microwave is 120 volts AC, 60 Hertz, 13.5 amps, and 1.5 kilowatts. This product must be connected to a supply circuit of the proper voltage and frequency. Wire size must conform to the requirements of the National Electrical Code or the prevailing local code for this kilowatt rating. The power supply cord and plug should be brought to a separate 20 ampere branch circuit single grounded outlet.
OUTSIDE BACK EXHAUST (EXAMPLE ONLY) The following chart describes an example of one possible ductwork installation. NOTE: Align the exhaust with the space between the studs, or the wall should be prepared at the time it is constructed by leaving enough space between the wall studs to accommodate the exhaust. Exhaust connection The hood exhaust has been designed to mate with a standard 3 1/4"x10" rectangular duct. If a round duct is required, a rectangular-to-round transiting adaptor must be used.
Elbows, Transitions, Wall and Roof caps Several duct pieces may 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 lengths of all transitions and adaptors plus the length of all straight duct sections. The chart below shows you how to calculate total equivalent ductwork length using the approximate feet of equivalent length of some typical ducts.
Parts Included Part Mounting Plate Exhaust Adapter Top Cabinet Template 1 1 1 Quantity Rear Cabinet Template 1 Installation Instructions Separately Packed Grease Filter 1 2 Installation Accessories The installation accessories are located in a packet, stored within the unit. Check to make sure all of the listed parts are included.
Mounting Space NOTES: • The space between the cabinets must be 24” wide and free of obstructions. • When installing the microwave beneath smooth, flat cabinets, be careful to follow the instructions for power cord clearance. Make sure to leave enough space for power cord clearance. • To vent your microwave to the outside, see the Hood Exhaust section for exhaust duct preparation instructions.
INSTALLATION INSTRUCTIONS Placing the Mounting Plate 1. Open the microwave box, and remove the microwave. It will be wrapped in a plastic bag. 2. Remove the plastic bag, being careful to save the upper foam, where the mounting bracket is located. 3. Remove the mounting bracket from the upper foam. Finding your Wall Studs NOTE: The microwave must be anchored to at least one wall stud.
Finding the Top Line Under your Cabinet There are typically three types of cabinet bottoms under which you will install your microwave: Flat Bottom Cabinet 10
Framed Recessed Cabinet 11
Framed Recessed Cabinet with Front Overhang Your cabinets may have decorative trim that interferes with the microwave installation. Remove the decorative trim to install the microwave properly and to make it level. THE MICROWAVE MUST BE LEVEL Use a level to make sure the cabinet bottom is level. If the cabinets have a front overhang only, with no back or side frame, the top line of the rear wall template must align below cabinet bottom by the same distance as the front overhang depth.
Aligning the Top Line of your Rear Wall Template CAUTION: Wear gloves when installing to prevent cutting your fingers on sharp edges. 1. Using a tape measure, draw a vertical line on the wall at the center of the 24” wide space. 2. Tape the rear wall template on the wall, aligning the center marks on the rear wall template with the center line on the cabinet. 3. The location of the rear wall template will depend on what type of cabinet you are installing the microwave under. (See above examples.) 4.
Installation Types This microwave is designed to be adapted to the following three types of installation: A. Outside Top Exhaust (Vertical Duct) B. Outside Back Exhaust (Horizontal Duct) C. Recirculating (Non-Vent/Ductless) NOTE: This microwave is shipped assembled for Recirculating.
Installation Instructions for Outside Top Exhaust Attaching the Mounting Plate Attach the mounting plate to the wall using the wing nuts and screws. At least one wood screw must be used to attach the mounting template to the wall stud. 1. Remove the toggle wings from the bolts. 2. Insert the bolts into the mounting template through the holes designed to go into drywall, and reattach the toggle wings to ¾” onto each bolt. 3.
Check for Proper Damper Operation • • • • • Place the microwave in its upright position, with the top of the unit facing up. The exhaust adaptor is only used for top and outside back exhaust. It is absent for models shipped for recirculation exhaust. Make sure the tape securing the damper is removed and the damper pivots easily before mounting the microwave. Attach the exhaust adaptor to the blower plate by sliding it into the guides. Secure the adaptor with a provided sheet metal screw.
NOTE: The Filler Block is only used for recessed cabinets and front overhang cabinets. Place the Filler Block on the cabinet bottom before installing the oven. 5. Tighten the outer two screws to the top of the microwave oven. (During tightening screws, hold the microwave oven in place against the wall and the top cabinet.) 6. Install the grease filters. (See the User Manual packed with the microwave.
Adjust the Exhaust Adaptor Open the top cabinet and adjust the exhaust adaptor to connect to the house duct. Connecting the Ductwork 1. Extend the house duct down to connect to the exhaust adaptor. 2. Seal exhaust duct joints using duct tape. Installation Instructions for Outside Back Exhaust Preparing the REAR Wall Template Cut an opening (12” x 4” square) in the rear wall for an outside exhaust. • • • Read the instructions on the REAR wall template.
Attaching the Mounting Plate Attach the mounting plate to the wall using the wing nuts and screws. At least one wood screw must be used to attach the mounting template to the wall stud. 4. Remove the toggle wings from the bolts. 5. Insert the bolts into the mounting template through the holes designed to go into drywall, and reattach the toggle wings to ¾” onto each bolt. 6. Place the mounting plate against the wall and insert the toggle wings into the holes in the wall to mount the plate.
2. Carefully pull out the blower unit. The wires will extend far enough to allow you to adjust the blower unit. CAUTION: Do not pull or stretch the blower unit wiring, and take care to ensure all wires are not pinched. NOTE: The blower unit exhaust openings should match the exhaust openings on the rear of the microwave oven. 7. Replace the blower plate in the same position. 8. Attach the exhaust adaptor to the rear of the oven by sliding it into the guides at the top center of the back of the microwave.
9. Push in securely until it is aligned with the blower motor screw holes. Be careful to assure that the damper hinge is installed so that it is at the top and that the damper swings freely. 10. Secure the blower motor unit to the microwave with the screw as before. 11. Secure the blower plate to the microwave with a screw. Replace the blower plate in the same position. Mount the Microwave For easier installation and personal safety, we recommend that two people install this microwave oven.
The Filler Block is only used for recessed cabinets and front overhang cabinets. Place the Filler Block on the cabinet bottom before installing the oven. 5. Tighten the outer two screws to the top of the microwave oven. (During tightening screws, hold the microwave oven in place against the wall and the top cabinet.) 6. Install the grease filters. (See the User Manual packed with the microwave.
Installation Instructions for Recirculating Microwaves Attaching the Mounting Plate Attach the mounting plate to the wall using the wing nuts and screws. At least one wood screw must be used to attach the mounting template to the wall stud. 1. Remove the toggle wings from the bolts. 2. Insert the bolts into the mounting template through the holes designed to go into drywall, and reattach the toggle wings to ¾” onto each bolt. 3.
Adapting the Blower for Recirculation 1. Remove and save the screw that holds the blower motor to microwave. Lift up the blower plate. 2. Carefully pull out the blower unit. The wires will extend far enough to allow you to adjust the blower unit. CAUTION: Do not pull or stretch the blower unit wiring, and take care to ensure all wires are not pinched. NOTE: The blower unit exhaust openings should match the exhaust openings on the rear of the microwave oven. 5.
The Filler Block is only used for recessed cabinets and front overhang cabinets. Place the Filler Block on the cabinet bottom before installing the oven. Tighten the outer two screws to the top of the microwave oven. (During tightening screws, hold the microwave oven in place against the wall and the top cabinet.) 7. Install the grease filters. (See the User Manual packed with the microwave.
Changing the Charcoal Filter The charcoal filter is used for non-vented, recirculated installations. The filter should be changed every six to 12 months, depending on use. 1. Remove the two screws from the louver, located on the top of the microwave oven by using a #1 Phillips head screwdriver. 2. Open the door, remove the louver, and remove the charcoal filter. 3. Install the new charcoal filter. When properly installed, the wire mesh of the filter should be visible from the front. 4.
BEFORE USING YOUR MICROWAVE These wall mount templates can be found on the product page of your particular model on www.summitappliance.com.
