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INSTALLATION INSTRUCTIONS

Remove Mounting Plate

Depending on your model, the mounting plate may be in the foam 
packaging, or it may be attached to the back of the microwave 
oven.
NOTE: To avoid possible damage to the work surface, cover the 
work surface.
1. Remove any remaining contents from the microwave oven 

cavity.

2. If the mounting plate is attached to the back of the microwave 

oven, remove it and set it aside.

3. Tape the microwave oven door closed so that door does not 

swing open while the microwave oven is being handled.

NOTE: To avoid damage to the microwave oven, do not grip or 
use the door or door handle while the microwave oven is being 
handled.

Convert Microwave Oven to 

External Venting

(for wall or roof venting only)

The microwave oven is set for recirculation installation. For wall or 
roof venting, changes must be made to the venting system. See 
“Venting Design Specifications” section.
NOTE: Skip this section if you are using recirculation installation. 
Keep the damper assembly in case the venting method is 
changed, or the microwave oven is reinstalled in another location 
where wall or roof venting may be used.
To prepare the microwave oven for wall or roof venting, the vent 
deflector (L-shaped metal bar) must be installed, and the 
appropriate damper vent opening must be uncovered.

To Install Vent Deflector:

1. Gently pull the rings and lift vent screen from the top of the 

microwave oven.

2. With vent deflector oriented as shown (wide side down), slide 

it back and under the back edge of the vent opening.

3. When the vent deflector is as far back as it can easily slide, flip 

it so that the wide side is to the back of the microwave oven, 
and the narrow side (with holes) is down. The vent deflector 
holes should align with mounting holes in the vent opening, as 
shown in inset.

A. Top of microwave oven
B. Vent screen

C. Rings

B                   C

A

A. Vent opening
B. Vent deflector

A. Vent opening
B. Vent deflector

A              B

A              B

Summary of Contents for KHMC1857BSP

Page 1: ...ttach Mounting Plate to Wall 8 Prepare Upper Cabinet 8 Install the Microwave Oven 9 Install Filters 10 Complete Installation 10 VENTING DESIGN SPECIFICATIONS 11 ASSISTANCE 12 Replacement Parts 12 W10502372A You can be killed or seriously injured if you don t immediately You can be killed or seriously injured if you don t follow All safety messages will tell you what the potential hazard is tell yo...

Page 2: ...g see Venting Design Specifications section Special Requirements For Wall Venting Installation Only Cutout must be free of any obstructions so that the vent fits properly and the damper blade opens freely and fully For Roof Venting Installation Only If you are using a rectangular to round transition piece 3 7 6 cm clearance needs to exist above the microwave oven so that the damper blade can open ...

Page 3: ... cm Electrical Shock Hazard Plug into a grounded 3 prong outlet Do not remove ground prong Do not use an adapter Do not use an extension cord Failure to follow these instructions can result in death fire or electrical shock WARNING GROUNDING INSTRUCTIONS SAVETHESE INSTRUCTIONS For all cord connected appliances The microwave oven must be grounded In the event of an electrical short circuit groundin...

Page 4: ...e Venting Design Specifications section NOTE Skip this section if you are using recirculation installation Keep the damper assembly in case the venting method is changed or the microwave oven is reinstalled in another location where wall or roof venting may be used To prepare the microwave oven for wall or roof venting the vent deflector L shaped metal bar must be installed and the appropriate dam...

Page 5: ...ing as shown Then secure with mounting screw Roof Venting Installation Only To Remove Roof Damper Vent Cover 1 Locate the roof damper vent cover on the top of the microwave oven 2 Using diagonal wire cutting pliers gently snip out the damper vent cover at the perforations 3 Save the cover for possible change of venting method in the future NOTE Do not install damper assembly at this time A Mountin...

Page 6: ...tions show examples of preferred installation configurations with the mounting plate No Wall Studs at End Holes Figure 1 No Wall Studs at End Holes Figure 2 NOTE If wall stud is within 6 15 2 cm of the vertical centerline see Mark Rear Wall section only recirculation or roof venting installation can be done Wall Stud at One End Hole Figure 3 Wall Studs at Both End Holes Figure 4 A End holes on mou...

Page 7: ...ure out 6 15 2 cm on both sides of the centerline and mark 10 Measure down 4 10 2 cm from the mark made in Step 8 and mark 11 Using a straightedge draw the 2 horizontal level lines through the marks made in steps 8 and 10 12 Draw the 2 vertical plumb lines down from the marks made in Step 9 to complete the 12 x 4 30 5 x 10 2 cm rectangle This is the venting cutout area 13 Cut a 3 4 19 mm hole in o...

Page 8: ...a lag screw into the other hole drilled in Step 2 of Installation for Wall Stud at One End Hole in the Drill Holes in Rear Wall section 7 Check alignment of mounting plate making sure it is level 8 Securely tighten the lag screw s and bolt Wall Studs at Both End Holes Figure 4 1 Position mounting plate on the wall 2 Insert lag screws into both end holes 3 Check alignment of mounting plate making s...

Page 9: ... in the wall cutout 6 Push microwave oven against mounting plate and hold in place NOTE If microwave oven does not need to be adjusted skip steps 7 9 7 If adjustment is required rotate microwave oven downward Using 2 or more people lift microwave oven off of mounting plate and set aside on a covered surface 8 Loosen mounting plate screws Adjust mounting plate and retighten screws 9 Repeat steps 3 ...

Page 10: ...peration of microwave oven by placing 1 cup 250 mL of water on the turntable and programming a cook time of 1 minute at 100 power Test vent fan and exhaust by operating the vent fan 4 If the microwave oven does not operate Check that a household fuse has not blown or that a circuit breaker has not tripped Replace the fuse or reset the circuit breaker If the problem continues call an electrician Ch...

Page 11: ... the damper to open fully If venting through the roof and rectangular to round transition is used be sure there is at least 3 7 6 cm of clearance between the top of the microwave oven and the transition piece See Rectangular to Round Transition illustration Rectangular to Round Transition NOTE The minimum 3 7 6 cm clearance must exist between the top of the microwave oven and the rectangular to ro...

Page 12: ...e oven model number and serial number Both numbers can be found on the model and serial number plate which is located behind the microwave oven door on the front frame of the microwave oven If you need additional assistance call us at our toll free number or visit our website listed in the User Instructions ReplacementParts If any of the installation hardware needs to be replaced call us at our to...

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