LG Electronics LMHM2237ST Installation Guide
Contents
1. Then securely tape or tack the rear wall template in place Make sure the minimum width is 30 inches and that the top of the rear wall template is located a minimum of 30 inches above the cooking surface See Figure 26 NOTE If the cabinets are not plumb adjust the rear wall template to the cabinets If the front edge of the cabinet is lower than the back edge adjust the template to be level with the cabinet front 5 Measure the bottom of the upper cabinet frame Trim edges A B and C on the upper cabinet template Figure 27 so that the template will fit on the bottom of the upper cabinet If upper cabinet has a recessed frame trim the template so it fits inside the recessed area Align the centerline of the upper cabinet template with the centerline of the rear wall template then securely tape or tack the upper cabinet template in place See Figure 27 2 STEP 4 Prepare The Wall amp Upper Cabinet AWARNING To avoid risk of personal injury electric shock or death e Note where electrical outlets and electrical wires are before you drill into the wall e Locate and disconnect power to any electrical circuits that could be affected by installing this oven AWARNING To avoid risk of personal injury electric shock or death cover the edge of the power supply cord hole with the power supply cord bushing Drill The Holes In The Wall And Upper Cabinet 1 Drill holes on the circles If there is a stud drill a2. the exhaust ports and blower plate opening are aligned Attach with one blower unit mounting screw and then one or several blower plate mounting screw s See Figure 19 7 Insert the tabs on each side of the damper into the holes at the inside rear of the adaptor Attach the exhaust adaptor to the back plate wall side Push in securely until it is past the top locking tabs and in the lower locking tabs Take care to assure the damper hinge is installed so that it is at the top and that the damper swings freely See Figure 20 Figure 17 gyo Blower Plate rE Mounting Screw Blower Plate Back Plate Blower Unit Blower Unit Mounting Screw Exhaust Ports Figure 19 10 Blower Plate Mounting Screw Blower Unit 275 Blower Unit es Mounting Screw Figure 13 Exhaust Ports Figure 18 Damper Exhaust Adaptor p gt Z a hinge side up Slide exhaust adaptor into guides on rear panel Figure 20 STEP 3 Prepare The Venting Blower Blower Plate Mounting Screw ROOM VENTING Recirculating INSTALLATION 1 Remove one or two blower unit mounting screw s and one or several blower plate mounting screw s Blower Unit Remove the blower plate See Figure21 2 Carefully lift the blower unit out of the microwave oven See Figure 14 3 Reassemble the blower wire See Figure 22 4 Rotate blower unit 90 so the exhau
3. 20V 60Hz AC only 15 or 20A fused electrical supply located in the cabinet above the microwave as close as possible to the microwave serving only the microwave e THIS APPLIANCE MUST BE GROUNDED PROPERLY POLARIZED AND If there is an electrical short circuit grounding reduces the risk of electric GROUNDED OUTLET shock by providing an escape wire for the electric current This appliance is equipped with a cord having a grounding wire with a grounding plug e Place the plug into a properly installed and grounded outlet See Figure 3 e Do not use an extension cord e Keep the power cord dry and do not pinch or crush it Failure to follow this instruction may cause a fire hazard DO NOT UNDER ANY CIRCUMSTANCES REMOVE THE Tne ne a aa ine POWER SUPPLY CORD GROUNDING PRONG Figure 3 This appliance MUST be grounded AWARNING Check with a qualified electrician if you are not sure whether the oven is properly grounded or if you do not completely understand the grounding instructions DO NOT USE A FUSE IN THE NEUTRAL OR GROUNDING CIRCUIT AWARNING Improper grounding could result in electric shock fire or other personal injury J Your Safety First SAVE THESE INSTRUCTIONS FOR THE LOCAL ELECTRICAL INSPECTOR S USE e DO NOT EXPOSE YOURSELF TO EXCESSIVE MICROWAVE ENERGY DO NOT try to operate the microwave oven with the door open DO NOT tamper with or defeat the safety interlocks DO NOT place objects betwe
4. 3 16 hole for lag screws If there is no stud drill a 3 4 hole for toggle Cabinet Front bolts Make sure to use at least 1 lag screw in a stud and 2 toggle screws in the drywall or the plaster Filler Block Cabinet Bottom Shelf B 2 Drill a 3 8 hole at points J and K on the upper cabinet template E NOTE If the bottom of the upper cabinet is recessed 3 4 or more you will need 2 x 2 filler blocks not included to provide additional support for the bolts Figure 28 See Figure 28 e Mark the center of each filler block and drill a 3 8 diameter hole at the marks e Align filler blocks over the two openings in the top of the microwave oven cabinet and attach to the cabinet with masking tape See Figure 29 3 Cut or drill a 2 diameter hole at the area marked M Power supply cord hole on the upper cabinet template If the upper cabinet is metal you will need to cover the edge of the hole with the power supply cord bushing supplied to prevent damage to the cord from the rough metal edge 4 Cut out the venting areas with the saber saw e Roof Venting cut out the shaded area marked L on the upper cabinet template e Wall Venting Cut out the shaded area marked F on the REAR WALL TEMPLATE e Room Venting go to STEP 5 INSTALL THE MOUNTING Figure 29 PLATE located on page 14 5 Complete whichever venting system you have chosen Use caulking compound to seal the exterior wall or roof opening aro
5. 8 Figure 9 e After installation you should check outside hood opening and operation e When you install the oven please refer to the Installation Manual For the outside hood opening position and size refer to the upper cabinet template or rear wall template STEP 2 Prepare The Venting System Standard Fittings NOTE If the existing duct is round you must use a rectangular to round adapter with a rectangular 3 extension duct installed between the damper assembly and the adapter to prevent the exhaust dampers sticking Duct Length The total length of the duct system including straight duct elbows transitions and wall or roof caps must not exceed 140 feet For best performance do not use more than three 90 degree elbows and keep the length as short as possible Below are the standard fittings and their equivalent length in feet 3 1 4 x 10 3 1 4 x 10 roof 3 1 4 x 10 90 to 6 5 ft cap 24 ft elbow 25 ft 3 1 4 x 10 3 1 4 x 10 wall cap i flat elbow 40 ft o CDON 10 ft 5 ft Figure 10 To calculate the equivalent length of each duct piece used see the examples below Examples For 3 1 4 x 10 SYSTEMS For 6 ROUND SYSTEMS 90 elbows 6ft wae 3 1 4 x10 e 6ft wall cap 90 elbow transition 1 transition 13 1 4 x 10 90 elbow 2 90 elbows 1 Wall Cap 1 Wall Cap 8 feet straight duct s 8 feet straight TOTAL L
6. APANAAAA AAAA One mounting plate Not Actual Size for supporting the Microwave Oven ey One 1 4 x 2 lag screws Actual Size Two 1 4 x 3 toggle bolts Actual Size for wall stud holes for drywall holes A AA a Two 1 4 x 3 bolts Actual Size Two tapping screws Actual Size for securing to the upper cabinet for attaching the damper duct connector One upper cabinet template Not Actual Size J Two 1 4 x 3 bolts Actual Size for securing to the upper cabinet NOTE You need to install at least one lag screws into a 2 x 4 stud and three anchor bolts into the wall and the mounting area must meet the 150 Ibs weight requirement 4 Parts Tools Materials You will need the following tools and materials for the installation Carton or other heavy material such as a blanket for covering the counter top Clear Tape Stud Finder or Thin Nail for taping the templates to the wall Saber Saw for cutting vent holes for roof or wall venting Phillips Screwdriver for the screws i p a oo 3 8 and 3 4 wood drill bits Pencil Gloves 1 2 and 316 mmm drill bits lt E Flat Blade Screwdrive
7. ENGTH j TOTAL LENGTH STEP 3 Prepare The Venting Blower Your microwave oven is shipped with the blower assembled for roof venting You need to adjust the blower if you want wall venting or room venting installation AWARNING ELECTRIC SHOCK HAZARD UNPLUG UNIT BEFORE WORKING ON IT e DO NOT PULL OR STRETCH THE BLOWER WIRING Pulling and stretching the blower wiring could result in electric shock 1 Remove any shipping materials and parts from inside the microwave oven Set them aside for later use NOTE Set the product down on a fiat surface only 2 Cover the counter top or cooktop with a thick protective covering to protect it from damage and dirt See Figure 11 NOTE If you have a free standing range disconnect it move it onto a piece of cardboard or hardboard and pull it away from the wall so that you can get closer to the upper cabinet and back wall for easier measuring and drilling A thick protective covering 3 Locate the exhaust adaptor grease filters and hardware packet 4 At this point remove any adhesive tape if there is any on the exhaust adaptor the grease filters and the power supply cord e Do not remove the packing tape on the slide out vent ROOF VENTING INSTALLATION This oven is shipped assembled for roof venting 1 Insert the tabs on each side of the damper into the holes at the inside rear of the adaptor Attach the exhaust adaptor to the blower plate with the two tapping s
8. TEP 2 Prepare The Venting System NOTE The ductwork you need for outside ventilation is not included with your oven The standard ductwork fittings and length are shown in Figure 10 page 8 AWARNING THIS OVEN MUST BE PROPERLY VENTED You may vent your oven in one of three ways However do NOT vent into a wall cavity an attic or an unused area Roof venting If your oven is located on an outside wall near the roof as in Figure 7 3 1 4 x 10 duct and Figure 9 6 round duct e Wall venting If your oven is located on an outside wall of your house as in Figure 6 3 1 4 x 10 duct and Figure 9 6 round duct Room venting If your oven is located on an inside wall of your house as in Figure 8 NOTE If you choose the rear exhaust method roof or wall venting be sure there is enough clearance within the wall for the exhaust duct Wall Venting Roof Venting Roof Cap Cabinet wv 3 1 4 x10 aoc Cap 3 1 4 x10 Through the wall Duct Duct Wall Mounting Through the roof Roof Venting Figure 6 Figure 7 VENTING Roof Cap e Keep the length of the ductwork and the number of elbows to a minimum to ventilate your oven Cabinet efficiently See examples on page 8 e Keep the size of the ductwork the same i Elbow Do not install two elbows together aT Ae A e Use duct tape to seal all joints in the duct system a e Use caulking to seal the exterior wall or roof opening around the cap Figure
9. Website http www lg com LG Life s Good MICROWAVE OVEN INSTALLATION INSTRUCTIONS PLEASE READ AND SAVE THESE INSTALLATION INSTRUCTIONS MFLO6206505 Your Safety First BEFORE YOU START e Proper installation is the installer s responsibility Proper installation by a qualified technician or installer is recommended Read the entire manual before you begin The model number label is located on the oven front See Figure 1 The mounting plate is located on the upper packing See Figure 2 NOTE Vent grille appearance varies by model BE SURE TO READ THE FOLLOWING SAFETY INSTRUCTIONS Model Number Plate i Mounting Plate Mounting Plate Figure 1 Figure 2 AWARNING For Your Safety e This oven should not be installed or located by anyone except properly qualified service personnel e You will need TWO people to install this oven It is heavy and could cause personal injury if not handled properly e Avoid Electric Shock Before you drill into the wall note where electrical outlets are and where electrical wires might be concealed behind the wall YOU COULD GET AN ELECTRIC SHOCK if you contact electrical wires with your drill bit Locate and disconnect the power to any electrical circuits that could be affected by installing this oven IF YOU DO NOT DISCONNECT THE POWER YOU COULD GET AN ELECTRIC SHOCK e ELECTRICAL RATING OF THIS OVEN 120V AC 60Hz You need a DEDICATED 1
10. al and horizontal clearance AWARNING If you do not mount the oven as instructed you risk personal injury and or property damage NOTE Maximum cabinet depth is 13 ae Grounded Outlet ae e veper cabine oS fi Power Supply Cord Hole 30 min cabinet opening width 30 min clearance from bottom SSS T L of cabinet to cooking surface Slide out hood model requires a minimum 2 in distance re SNe a from the top of the range control panel to the bottom of microwave oven 2 min Use templates included C _ oo with installation instructions C O A A CAUTION e Before you begin installing the oven PLACE A PIECE OF THE CARTON OR OTHER HEAVY MATERIAL a blanket over the countertop or cooktop to protect it Do not use a plastic cover Failure to protect these surfaces could result in property damage fe Ces SCO ea Figure 4 Parts Tools Materials THE FOLLOWING PARTS ARE SUPPLIED WITH THE OVEN NOTE Depending on your ventilation requirements you may not use all of these parts Damper duct connector One power cord clamp and for roof venting or wall venting installation One dark colored mounting screw Not Actual Size 2 pieces must be assembled as to hold the power cord shown Not used if venting into kitchen Actual Size Om One power cord clamp bushing Actual Size for the cord hole in a metal upper cabinet PAPARAN PREPPPAREEPEERAPPAEAAPAREAA
11. crews provided See Figure 12 Make sure that the damper swings freely Figure 12 AWARNING FIRE HAZARD CORRECTLY INSTALL THE VENT FAN BEFORE USE e When changing the vent fan position for a rear wall vent or room vent 1 Properly align the ventilation fan openings and blower plate knockouts 2 Ventilation fan openings should be completely exposed to the outside 3 After installation check the air ventilation path Refer to page 7 Figures 6 8 for proper vent selection elmproper installation can cause problems such as 1 Inability to assemble blower plate or ventilation motor correctly 2 Abnormal noise during product operation 3 Weak ventilation 4 Product overheating possibility of product breakdown or fire STEP 3 Prepare The Venting Blower WALL VENTING INSTALLATION 1 Remove one or two blower unit mounting screw s and one or several blower plate mounting screw s Remove the blower plate from the cabinet See Figure 13 2 Carefully lift the blower unit out of the microwave oven See Figure 14 3 Use side cutters or tin snips to cut and remove knockouts B from Back plate Discard knockouts Be careful not to distort the plate See Figure 15 4 Reassemble the blower wire See Figure 16 5 Rotate and reinstall the blower unit so that the exhaust ports face the rear of the cabinet and are aligned with the rear cut outs See Figures 17 amp 18 6 Reattach the blower plate to microwave oven so
12. en the microwave oven front face and the door DO NOT allow soil or cleaner residue to build up on the flat surfaces around the microwave oven door DO NOT operate the microwave oven if it is damaged The microwave oven door must close properly to operate safely DO NOT USE THE MICROWAVE OVEN e f the door is bent e If the hinges or latches are broken or loose e If the door seals sealing surfaces or glass is broken DO NOT ATTEMPT TO ADJUST OR REPAIR THE OVEN YOURSELF It should be adjusted and repaired by a qualified technician who can check for microwave leakage after repairing the oven AWARNING If you do not use the microwave oven as instructed you could be exposed to excessive microwave energy e MAKE SURE YOU HAVE ENOUGH SPACE AND SUPPORT Mount the oven against a flat vertical wall so it is supported by the wall The wall should be constructed of minimum 2 x 4 wood studding and 3 8 thick drywall or plaster lath ATTACH See note on page 4 the two lag screws supporting the oven to a vertical 2 x 4 wall stud DO NOT mount the microwave oven to an island or peninsula cabinet BE SURE the upper cabinet and rear wall structures can support 150 Ibs plus the weight of any items you place inside the oven or upper cabinet Locate the oven away from strong draft areas such as windows doors and strong heating vents BE SURE you have enough space See Figure 4 below for minimum vertic
13. o use spring toggle head bolts Remove the toggle wings from the bolts Insert the bolts into the mounting plate and replace the spring toggle head to 3 4 past the bolt ends Insert the spring toggle head into the holes in the wall to mount the plate You may pull forward on the plate to help in tightening the toggle bolts Tighten all bolts See Figure 31 14 3 16 Hole on Studs 5 8 Hole on Drywall Only Draw Lines on Studs Draw Center Line Mounting Plate 4 Support Tab Support Tab Figure 30 a Space More Than Wall Thickness Toggle Wings Mounting yee Plate lt H lt D i a EN Bolt gt F End Figure 31 STEP 6 Attach The Oven To The Wall AWARNING To avoid risk of personal injury or property damage you will need two people to install this microwave oven NOTE e Do not apply force directly to the outside bottom surface of the product The slide out vent latch may be damaged if force is applied directly to the center bottom of the product e Set the product down on a flat surface only During unpacking gently set the product onto a flat surface such as a kitchen table or counter Do not lift or support the product by the bottom center surface The product is best handled by the bottom sides near the legs Do not
14. r Plumb Line for the toggle bolts E PN D Measuring Tape Duct Tape metal preferred lt Small Side Cutters Nipper or Tin Snips Caulking Gun and Caulk sZ SSS i e f you have brick or masonry walls you will need special hardware and tools e The ductwork you need for the installation is not included All wall and roof caps must have a back draft damper Shown on page 4 e Wear proper gloves to protect your hands from injury 5 STEP 1 Prepare The Electrical Connection AWARNING AVOID ELECTRIC SHOCK THIS APPLIANCE MUST BE GROUNDED Locate the grounded electric outlet for this oven in the cabinet above the oven as shown in Figure 5 Upper NOTE The outlet should be on a circuit dedicated to the Cabinet microwave oven 120V 60 Hz AC only with a 15 or 20A fused electrical supply IMPORTANT If you do not have the proper wall outlet you MUST have one installed by a qualified electrician Grounded Outlet Inside Cabinet 2 You will cut the hole for the power supply cord shown in Figure 5 later when you prepare the wall and upper cabinet in Step 4 NOTE Do not use an extension cord Keep the power cord dry and do not pinch or crush it Power Supply Cord Hole Figure 5 AWARNING Improper grounding could result in electric shock or other personal injury e DO NOT UNDER ANY CIRCUMSTANCES REMOVE THE POWER SUPPLY CORD GROUNDING PRONG e This appliance MUST be grounded S
15. remove the packing tape on the slide out vent during installation Once the product is fully installed remove the tape and check that the vent easily slides open and closed with a push 1 Carefully lift microwave oven and hang it on support tabs See Figure 30 at the bottom of the mounting plate Reaching through upper cabinet thread power supply cord through the power supply cord hole in the bottom of the upper cabinet See Figure 32 2 Rotate the microwave oven upward so the top of the oven is against the bottom of the upper cabinet or cabinet frame 3 Then insert a bolt down through each hole in the upper cabinet bottom See Figure 33 Tighten the bolts until the gap between the upper cabinet and microwave oven is closed 4 Roof venting installation See Figure 34 Install ductwork through the vent opening in the upper cabinet Use caulking gun to seal the exterior roof opening around the exhaust cap See Figure 7 on page 7 5 Use the power supply cord clamp to bundle the power supply cord Install the power supply cord clamp using a screw as shown in Figure 35 to the inside of the cabinet 6 Grasp the filter screen with one hand holding the ring and the other hand holding the opposite end Insert the end of the filter screen without ring into the opening and slide towards the side of the microwave oven Insert ring end of filter screen into the opening and slide entire screen towards the center of the mic
16. rowave until screen is securely in position Repeat for other filter screen See Figure 36 7 Plug in the power supply cord 8 Read your Owner s Manual then check the operation of your microwave oven Figure 36 245 LG Life s Good Printed in China
17. st ports face the front of the cabinet See Figure 23 5 Place blower unit back into microwave oven Be sure the wires are not pinched See Figure 24 6 Reattach blower plate to microwave oven Attach with the one blower unit mounting screw and then the one or several blower plate mounting screw s See Figure 25 Figure 22 Blower Unit Blower Plate ti i Mounting Screw Blower Unit Blower Unit Parts B Mounting Screw Figure 25 11 STEP 4 Prepare The Wall amp Upper Cabinet AWARNING To avoid personal injury or property damage do not attempt to install this microwave oven if you cannot find a wall stud Consult a carpenter or contractor Measure And Track Tape Up The Templates 1 Using a plumb line and metal measuring tape find and mark the vertical center line on the back wall as in Figure 26 OjO 2 Find and mark one or two points where the studs are on the wall Studs are normally 16 inches apart Then R measure and mark the stud locations If you cannot find any wall stud consult a local building contractor DO NOT ATTEMPT TO INSTALL THE MICRO A CAUTION EEN WAVE OVEN IF YOU CANNOT FIND A WALL STUD Figure 26 3 Draw a vertical line on the wall at the center of th 30 wide space NOTE Be sure the minimum width is 30 inches 4 Center the rear wall template in the space by lining up the plumb line on wall with centerline on template
18. und the wall cap or roof cap s STEP 5 Install The Mounting Plate The Oven Must Be Connected To At Least One Wall Stud 1 Center the rear wall template in the space by lining up the plumb line on wall with centerline on template Then securely tape or tack the rear wall template in place Make sure the minimum width is 30 inches and that the top of the rear wall template is located a minimum of 30 inches above the cooking surface See Figure 26 NOTE If the cabinets are not plumb adjust the rear wall template to the cabinets If the front edge of the cabinet is lower than the back edge adjust the template to be level with the cabinet front 2 Drill holes at points A B Drill the third hole inside area C through one of the bottom holes to match the location of a stud If there is a stud drill a 3 16 hole for lag screws If there is no stud drill a 5 8 hole for toggle bolts These holes must be used for mounting If the holes are not used the installation will not be secure Installer must use these holes for proper installation See Figure 30 Use toggle bolts through these holes unless one of them lines up with a stud Use a wood screw for studs Make sure to use at least 1 lag screw in a stud and 2 toggle bolts in the drywall or the plaster NOTE Cut out the shaded area marked F on the REAR WALL TEMPLATE for wall venting 3 Remove the template from the rear wall 4 Attach the plate to the wall T
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