HisoHu Classic Series Under Cabinet Range Hoods

Installation Guide & User Manual

Version: IKC02

Models: 6" High, 3-1/4" x 10" RECTANGLE TOP / REAR VENT OPTIONS

For technical support and sales activity, email support@amazon-saleservice.com. Contact your local seller for exchange or repair.

HisoHu RANGE HOOD - Kitchen Expert

STOP and read! Test before installing

1. Unpack the range hood and accessories carefully.
2. Remove and inspect the aluminum filters for any dents or damage.
3. Remove any loose parts.
4. Place the range hood on a flat, stable surface and connect to a 120V AC power source.
5. Press the power button and speed buttons to test operation. Check for unusual noises, speed variations, and test the lights.
6. Verify all functions as per Section 9 RANGE HOOD OPERATIONS.
7. Refer to Section 10 TROUBLESHOOTING for any malfunctions.
8. Note: The plastic protective film was removed for sanding polish finishing.

IMPORTANT: Read and save these instructions.

NOTICE: Installer: Leave this guide with the homeowner. Homeowner: Keep this guide for future reference.

The HisoHu range hood features high airflow ?, a powerful motor ⚙️, and low noise operation ?.

PLEASE READ AND SAVE THESE INSTRUCTIONS.

Strongly recommend to test the unit before installation for any defective or damage during shipment.

WARNING – TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, READ THE FOLLOWING CAREFULLY before attempting to assemble, install, operate or maintain the product.

• A. Always disconnect, lock, and tag the power source before installing or servicing the product. Failure to disconnect the power source can result in fire, shock, or serious injury.
• B. Installation work and electrical wiring must be done by qualified person(s) in accordance with all applicable codes and standards, including fire-rated construction.
• C. When cutting or drilling into a wall or ceiling, do not damage electrical wiring and other hidden utilities.
• D. Verify and ensure the rated voltage and frequency (refer to the rating label) of the range hood comply with the mains supply.

A diagram shows the dimensions of the range hood, indicating lengths such as 29.5" (750) / 35.75" (908) / 41.7" (1060) for the width, 19.68" (500) for the depth, and various heights and vent dimensions.

Another diagram shows the underside of the range hood with dimensions for the vent opening and mounting points.

1. KNOW BEFORE INSTALLATION

Research, plan, and prepare the optional accessories & tools.

Duct venting and accessories (NOT INCLUDED)

• If installing a new exhaust duct or replacing an old one, prepare to cut openings through the bottom of the cabinet, wall, or top cabinet to the ceiling. Purchase a 6" metal duct (or 6" semi-rigid aluminum duct for easy connection). Refer to Section 5 VENTING METHODS for details.
• Check the existing exhaust duct size. If it is not a 6" round metal duct, obtain a converter/reducer/adapter/elbow.
• Images display various duct adapters and elbows.
• A damper is NOT included. It is not recommended to install the damper directly attached to the top vent of the range hood due to potential noise. Install the damper between ducts, close to the air outlet near the roof or side wall. If the roof cap or side wall cap already has a damper, an additional one is not needed.
• Images show a damper and duct tape.
• Prepare necessary tools: cutting tools (jig saw or reciprocating saw), screwdrivers or power drill, level, measuring tape, knife, duct/foil tape, screws, marker/pencil, etc.
• Images show various tools including a jigsaw, reciprocating saw, drill, level, and tape measure.
• Two people are required for the installation.

An exploded view diagram shows the various parts of the range hood, including motors, fans, filters, control panel components, and mounting hardware.

2 INCLUDED PARTS & ACCESSORIES

Note: Supplied parts are subject to change without notice due to product development.

This warranty is valid in the United States. It is non-transferable and applies only to the original purchaser. Implied warranties, including the warranty of merchantability, are limited in duration to the express warranty period. To obtain warranty service, contact the dealer or distributor. Include product identification information (model number, lot number) and a detailed description of the problem. Proof of original retail purchase is required.

A diagram shows the range hood and its filters.

A diagram illustrates the process of venting the range hood through the wall or roof.

Replacing the Light Bulbs:

• This range hood uses LED bulbs: 3W 12V.
• Ensure the range hood is unplugged or the breaker is turned OFF.
• Gently pull the defective bulb assembly straight out and disconnect the wires.
• Connect the new LED bulb's wires and snap the new LED assembly into the housing hole.
• Turn the breaker/power ON to test the range hood operation.

12. WARRANTY

Provide an original dated proof of purchase (sales receipt / invoice) for warranty service.

One Year Parts Warranty:

• For one year from the original purchase date, free replacement parts or components that failed due to manufacturing defects will be provided. HisoHu will, at its option, repair or replace any part proving defective due to improper workmanship or materials.
• Repaired or replacement products will be provided on an exchange basis, and will be new or refurbished to be functionally equivalent to new.
• The consumer is responsible for all shipping costs.
• Consumable parts not covered include: light bulbs, stainless steel baffle filters.

Who is Covered?

This warranty extends to the original purchaser for products purchased for ordinary home use in the continental USA.

This Warranty Will Be Voided When:

• Product is damaged through negligence, improper installation, accident, abuse, misuse, natural disaster, insufficient or excessive electrical supply, abnormal mechanical or environmental conditions, or any unauthorized disassembly, repair, modification, or failure to follow installation instructions.
• Product is used commercially or other than its intended purpose.
• Product is damaged due to improper connection with equipment of other manufacturers.
• Product is repaired or modified by anyone other than authorized agents.
• Original identification information has been altered, obliterated, or removed.
• Product has not been handled or packaged correctly.
• Product has been sold as second-hand.

What is Not Covered?

• Consumable parts such as light bulbs, stainless steel baffle filters.
• Natural wear of finish, and wear due to improper maintenance, use of corrosive and abrasive cleaning products, pads, and oven cleaner products.
• Chips, dents, or cracks due to abuse, misuse, freight damage, or improper installation.
• Damage caused by accident, fire, floods, or act of God.
• HisoHu is not liable for, and does not cover under warranty, any loss of properties or any costs associated with removing, servicing, installing, or determining the source of problems with its products.

3. IMPORTANT SAFETY NOTICE

Read all Instructions before Installing and operating this appliance

Installation Cautions

• The installation in this manual is intended for qualified installers, service technicians, or persons with similar qualified backgrounds. Installation and electrical wiring must be done by qualified professionals in accordance with all applicable codes and standards, including fire-rated construction.
• DO NOT attempt to install this appliance yourself. Injury could result from installing the unit due to lack of appropriate electrical and technical background.
• Range hoods may have very sharp edges; please wear protective gloves if necessary to remove any parts for installing, cleaning, or servicing.
• Before installation, turn on the range hood to test for any damage/defect due to shipping.
• Due to the size and weight of this range hood, two-person installation is required.

To reduce the risk of fire, electric shock, or injury to persons:

• For general ventilating use only. DO NOT use to exhaust hazardous or explosive materials and vapors.
• The combustion air flow needed for safe operation of fuel-burning equipment may be affected by this unit's operation. Follow the heating equipment manufacturer's guidelines and safety standards such as those published by the National Fire Protection Association (NFPA), the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), and local code authorities.
• Before servicing or cleaning the unit, unplug the power cord or switch power OFF at the service panel and lock the service panel to prevent power from being switched ON accidentally.
• Clean grease-laden surfaces frequently. To reduce the risk of fire and to disperse air properly, ensure air is vented outdoors. DO NOT vent exhaust into spaces between walls, crawl spaces, ceilings, attics, or garages.
• Use only metal ductwork and this unit MUST be grounded.
• Sufficient air is needed for proper combustion and exhausting of gases through the duct to prevent back drafting.
• When cutting or drilling into a wall or ceiling, be careful not to damage electrical wiring or other hidden utilities.
• All electrical wiring must be properly installed, insulated, and grounded.
• Old duct work should be cleaned or replaced if necessary to avoid the possibility of a grease fire.
• Check all joints on duct work to ensure proper connection and all joints should be properly taped.
• Use this unit only in the manner intended by the manufacturer. If you have questions, contact the vendor.

To reduce the risk of a stove top grease fire:

• Keep all fan, baffle, spaces, filters, grease tunnels, oil containers, and grease-laden surfaces clean. Grease should not accumulate on the fan, baffles, spaces, filters, grease tunnels, and oil containers.
• Always turn the range hood ON when cooking at high heat or when cooking flaming foods.
• Use high settings on the cooking range only when necessary.
• Never leave surface units (countertop/stove) unattended at high settings. Boil-overs cause smoking and greasy spillover that may ignite. Heat oils slowly on low or medium settings.
• Clean the ventilating fan frequently.
• Always use appropriate cookware and utensil sizes.
• Always use cookware appropriate for the size of the surface element.

To reduce the risk of injury to persons in the event of a stove top grease fire:

• SMOTHER FLAMES with a close-fitting lid, cookie sheet, or metal tray, then turn OFF the burner. BE CAREFUL TO PREVENT BURNS. NEVER PICK UP A FLAMING PAN – you may be burned. KEEP FLAMMABLE OR COMBUSTIBLE MATERIAL AWAY FROM FLAMES. If the flames DO NOT go out immediately, EVACUATE AND CALL THE FIRE DEPARTMENT or 911.
• DO NOT USE WATER, including wet dishcloths or towels – a violent steam explosion will result.
• Use an extinguisher ONLY if:
  • You know you have a Class A, B, C extinguisher, and you already know how to operate it.
  • The fire is small and contained in the area where it started.
  • The fire department is being called.
  • You can fight the fire with your back to an exit.

To reduce the risk of injury to persons in the event of a gas leak:

• Extinguish any open flame.
• DO NOT turn on the lights or any type of appliance.
• Open all doors and windows to disperse the gas. If you still smell gas, call the gas company and fire department, or 911 immediately.

Your safety and the safety of others are very important. HisoHu has provided many important safety messages in this manual and on the appliance. Always read and obey all safety messages. All safety messages will tell you what the potential hazard is, how to reduce the chance of injury, and what can happen if the instructions are not followed.

WARNING

This is the safety alert symbol ⚠️. This symbol alerts you to potential hazards that can hurt you and others. All safety messages will follow the safety alert symbol and the word "WARNING".

You hold all responsibility in the event of failure to observe the instructions given here for installation, maintenance, and suitable use of the product. HisoHu declines all responsibility for injury due to negligence, and the warranty of the unit automatically expires due to improper maintenance. HisoHu will not be held responsible for any damages to personal property or real estate or any bodily injuries whether caused directly or indirectly by the range hood.

11. MAINTENANCE AND CLEANING

Cleaning:

• The saturation of greasy residue in the blower and filters may cause increased inflammability. Keep the unit clean and free of grease and residue build-up at all times to prevent possible fires.
• For optimal operation, clean the range hood and all baffle/spacer/filter/grease tunnel/oil container regularly. Regular care will help preserve the appearance of the range hood.
• Filters must be cleaned periodically and kept free from cooking residue accumulation. Old and worn filters must be replaced immediately.
• DO NOT operate blowers when filters are removed. Never disassemble parts to clean without proper instructions. Disassembly is recommended to be performed by qualified personnel only. Read and understand all instructions and warnings in this manual before proceeding.

SAFETY WARNING: Never put your hand into the area housing the fan while the fan is operating! ✋

Cleaning Exterior Stainless Steel Surfaces:

• Clean periodically with hot soapy water and a clean cotton cloth. DO NOT use corrosive or abrasive detergents, or steel wool/scoring pads, which will scratch and damage the stainless steel surface. For heavier soil, use a liquid degreaser cleaner.
• If the hood looks splotchy, use a stainless steel cleaner to clean the surface. Avoid getting cleaning solution onto or into the control panel. Follow the directions of the stainless steel cleaner.
• CAUTION: DO NOT leave cleaner on too long as this may cause damage to the hood finish. Use a soft towel to wipe off the cleaning solution, gently rubbing off any stubborn spots. Use a dry soft towel to dry the hood.
• After cleaning, you may use a non-abrasive stainless steel polish to polish and buff out the stainless luster and grain. Always scrub lightly with a clean cotton cloth and with the grain.
• DO NOT allow deposits to accumulate or remain on the hood.
• DO NOT use ordinary steel wool or steel brushes. Small bits of steel may adhere to the surface and cause rusting.
• DO NOT allow salt solutions, disinfectants, bleaches, or cleaning compounds to remain in contact with stainless steel for extended periods. Many of these compounds contain chemicals that may be harmful. Rinse with water after exposure and wipe dry with a clean cloth.

Cleaning Aluminium Filters:

• Remove all baffles, spacers, filters, grease tunnels, and oil containers and discard oil and residue.
• IMPORTANT: Drain oil from baffles, spacers, filters, oil tunnels, and oil containers before oil and residue overflow!
• Wash with warm soapy water. NOTE: Aluminum filters, spacers, and oil tunnels are top-rack dishwasher safe.
• Dry thoroughly before replacing and follow installation directions in reverse.
• Filters should be cleaned after every 30 hours of use.

Replacing Filters:

Should filters wear out due to age and prolonged use, replace the aluminum filters immediately.

Operation Cautions:

• Read and understand all instructions and warnings in this manual before operating the appliance.
• Always leave safety grills and filters in place. Without these components, operating blowers could catch hair, fingers, and loose clothing.
• NEVER dispose of cigarette ashes, ignitable substances, or any foreign objects into the blowers.
• NEVER leave cooking unattended. When frying, oil in the pan can easily overheat and catch fire. The risk of self-combustion is higher when the oil has been used several times.
• NEVER cook on "open" flames under the range hood. Check deep-fryers during use: Superheated oil may be flammable.

10. TROUBLESHOOTING

A diagram illustrates the control panel layout with buttons for lighting, timer, speed, and power, along with gesture control indicators.

• If the range hood or LED light does not operate after installation: Check if the range hood is plugged in, ensure power is turned back ON, the fuse is not blown, and all electrical wiring is properly connected. Swap out light assemblies to working ones to determine if it's caused by defective bulbs (See Replacing the Light Bulbs on Page 14).
• The range hood vibrates when the blower is on: The range hood might not be secured properly to the cabinet or wall.
• The blower or fan seems weak: Check that the duct size used is at least 6" or 3-1/4" x 10". The range hood WILL NOT function efficiently with insufficient duct size (e.g., 7" duct over a 6" top vent and loosely secured). Check if the duct is clogged or if the damper unit (half-circular flapper) is not installed correctly or opening properly. A tight mesh on a side wall cap unit might also restrict airflow.
• The blower or fan is not spinning at all, is stuck, or is rattling: The blower might be jammed or scraping the bottom due to shipping damage. Disconnect the power cord, remove the fan grill and the fan blade. Check if the fan blade and/or motor is not in the proper position (offset from the center). Try to fix/adjust it or contact HisoHu immediately.
• The hood is not venting out properly: Ensure the distance between the stovetop and the bottom of the hood is within the recommended 27" to 30" range. (Note: Due to different ceiling height configurations, the recommended height may not be applicable). Reduce the number of elbows and the length of ductwork. Check if all joints are properly connected, sealed, and taped. Ensure the power is set to high speed for heavy cooking.

4. VENTING HEIGHT REQUIREMENTS

• Vent system must terminate to the outside (roof or side wall).
• DO NOT terminate the vent system in an attic or other enclosed area.
• DO NOT use 4" (10.2 cm) laundry-type wall caps.
• Use metal/aluminum vent only. Rigid or flexible metal/aluminum vent duct is recommended.
• DO NOT use plastic vent.
• Always keep the duct clean to ensure proper airflow.
• Measure and estimate the following figures before installation:
  • Distance between the countertop/stove to the bottom of the range hood. Recommend 27" to 30" for ideal performance, minimum 25.5" (inches) for safety concern.
  • Height of hood and duct.

For the most efficient & quiet operation:

• A distance of 27" to 30" is recommended between the stovetop and the bottom of the range hood.
• The vent duct is not included. It is recommended that the range hood be vented vertically through the roof using 6" (15.24 cm) or larger round metal/aluminum vent work, such as a 6" x 8 ft. semi-rigid aluminum flexible duct.
• The size of the vent should be uniform.
• Use no more than three 90° elbows.
• Ensure a minimum of 24" (61 cm) of straight vent between elbows if more than one elbow is used.
• DO NOT install two elbows together.
• The length of the vent system and the number of elbows should be kept to a minimum for efficient performance.
• The vent system should have a damper. The damper can be installed in the duct near the roof or wall cap. It is not recommended to use a damper on top of the range hood, as it can cause significant noise.
• Use silver tape or duct tape to seal all joints in the vent system.
• Use caulking silicone to seal the exterior wall or roof opening around the cap.

Diagrams illustrate recommended mounting heights and venting configurations (roof exhaust and wall exhaust).

• IMPORTANT:
• Please use the Duct Run Calculation below to compute the total available duct run when using elbows, transitions, and caps.
• ALWAYS, when possible, reduce the number of transitions and turns. If a long duct run is required, increase the duct size from 6" to 7", 8", or 9". If a reducer is used, install a long reducer instead of a pancake reducer. Reducing duct size will restrict airflow and decrease performance. Reduce duct size as far away from the opening as possible.
• If turns or transitions are required: Install them as far away from the opening and as far apart from each other as possible.
• Minimum mount height between stovetop to hood bottom should be no less than 24 inches.
• Maximum mount height between stovetop to hood bottom should be no higher than 32 inches.
• It is important to install the hood at the proper mounting height. Hoods mounted too low could result in heat damage and fire hazard; while hoods mounted too high will be hard to reach and will reduce performance and efficiency.
• If available, also refer to the stovetop manufacturer's height clearance requirements and recommended hood mounting height above the range.

Minimum Duct Size:

• Round - 6" minimum
• Rectangular - 3-1/4" x 10" minimum (requires a 6" to 3-1/4" x 10" adaptor, not supplied)

Calculating Vent System Length

To calculate the length of the system you need, deduct the equivalent feet for each vent piece used in the system from the recommended maximum duct run.

Duct Run Calculation example:

One roof cap, two 90° elbows, and one 45° elbow used: 0 ft + 9 ft + 9 ft + 5 ft = 23 ft used. Deduct 23 ft from 50 ft, leaving 27 ft maximum available for the duct run.

9. RANGE HOOD OPERATIONS

Control Panel Layout and Buttons Configurations:

The control panel includes:

1. Lighting Key (K1)
2. Timer Key (K2)
3. LED Display
4. Speed Key (K3)
5. Power Key (K4)

When the power supply is connected, all indicator lights turn ON for 1 second and then OFF. Press K4 to turn on the hood.

When the hood is ON, press K3 to activate Fan Speed 1. Press again for Speed 2, and so on, up to Speed 4. The fan speed cycles as 1-2-3-4-0-1-2-3-4.

If any fan speed is active, press K2 to enter Timer Mode. The default is 3 minutes with a countdown. You can also press K2 or K3 to set the desired timer duration, up to a maximum of 15 minutes.

Press K1 to turn the lamp ON or OFF. The brightness of the lighting can be adjusted from 0% to 100% by touching K1.

Gesture Control: Move your hand from left to right to increase fan speed (1st move for Speed 1, 2nd for Speed 2, etc.). Move your hand from right to left to decrease the speed level. Please Note: When using gesture control, ensure your hand moves completely across the 2 signal ports.

• For safety purposes, mount the screws through the pre-drilled mounting holes or drill new holes from inside the back of the hood into the studs or lumber. For a more secure installation, use as many mounting holes as needed to secure from the inside of the hood.
• Use a 6" round metal duct (or semi-rigid aluminum duct, following local building codes) to connect the exhaust on the hood to the ductwork above. Use foil tape or duct tape to secure and seal all joints.
• Connect the power cord to a designated grounded standard 110V outlet. Alternatively, cut off the plug and connect the three wires (black, white, and green) to the house wires, capping them with wire connectors. Connect according to colors (black to black, white to white, and green to green). Store excess wires in the wiring box.
• Install aluminum filters and stainless steel spacer if applicable.
• Turn the power ON at the control panel. Check all lights and fan operations.

5. VENTING METHODS

• This range hood is designed for 6" top venting through the roof or wall.
• Vent work can terminate either through the roof or wall as illustrated.
• A minimum of 6" round duct (purchase separately) or a 3-1/4" x 10" rectangular duct (purchase separately) must be used to maintain maximum airflow efficiency.
• Always use rigid or semi-rigid metal/aluminum ducts if available to maximize airflow.
• Decide the location of the venting pipe from the hood to the outside.
• A straight, short vent run will allow the hood to perform more efficiently. Try to avoid as many transitions, elbows, and long runs as possible, as these can reduce the hood's performance.

IMPORTANT:

• NEVER exhaust air or terminate ductwork into spaces between walls, crawl spaces, ceilings, attics, or garages. All exhaust must be ducted to the outside.
• Fasten all connections with sheet metal screws and tape all joints with certified Silver Tape or Duct Tape.
• Use caulking to seal the exterior wall or roof opening around the cap.

Diagrams show top venting to the roof and top venting through the wall.

6. ELECTRICAL REQUIREMENTS & SPECIFICATIONS

IMPORTANT: Observe all governing codes and ordinances.

• It is the customer's responsibility to contact a qualified electrical installer.
• A 120 Volt, 60 Hz, AC only, fused electrical supply is required on a 15-amp circuit.
• DO NOT have a fuse in the neutral or ground circuit.
• The 3-prong outlet should be grounded. If the power cord plug is not used, the power cord's green wire should be connected to ground. Check with a qualified electrician if you are unsure that the range hood is properly grounded.
• DO NOT ground to a gas pipe.
• The range hood must be connected with copper wire/plug only.
• The range hood should be connected directly to the fused disconnect (or circuit breaker) box through flexible armored or non-metallic sheathed copper cable. ETL listed strain relief must be provided at each end of the power supply cable.

Diagrams show a warning about electrical shock and a standard electrical outlet.

Specifications:

7. INSTALLATION PREPARATION

Test before installing:

• Please unpack the range hood and accessories carefully. Remove the aluminum filters.
• Check for any dent or damage inside and outside. If found any loose parts, please remove them.
• Place the range hood on a flat, stable surface. Connect the range hood to a designated standard outlet (120-Volt, 60Hz, AC only). Press the power button and the speed buttons to turn on.
• Check for any unusual metal touching noise, check the speed variation, and press the Light button to check the lights. Verify all functions by referring to Section 9 RANGE HOOD OPERATIONS. Refer to Section 10 TROUBLESHOOTING if any malfunction was found.
• Place all supplied parts and required hardware on a flat, stable surface and verify the existence of all supplied parts listed in Section 2 INCLUDED PARTS & ACCESSORIES.
• Note: The white plastic protective film was removed for sanding polish finishing.

NOTE: To avoid damage to your hood, prevent debris from entering the vent opening.

CAUTION: If moving the cooking range is necessary for installation, unplug the power on an electric range. SHUT OFF THE GAS VALVE BEFORE MOVING A GAS RANGE.

8. INSTALLATION INSTRUCTIONS

1. Installation planning
2. Measure the distance between the stovetop and the bottom of the range hood. A distance of 27" to 30" is recommended. Minimum 25.5" is required for safety concerns.
3. Decide the venting method and the location of the venting pipe from the hood to the outside.
4. Purchase any necessary accessories from a hardware store, such as duct, elbow, reducer, damper, duct tape, screws, etc.
5. Find and mark the stud locations using a stud finder to plan the mounting locations firmly.
6. Measure the top vent and the power cord positions, cut the openings (slightly larger for easy accessibility) for the hood exhaust and power cord under the cabinet.
7. For installing under the cabinet with a recessed bottom, attach 4-inch wide wood filler strips (not provided) on each side.
8. Puncture the knockout screw holes on the top for screw mounting under the cabinet.
9. Mount this range hood under the cabinet; 2 people are required for this installation.
10. Draw the power cord through the cabinet access opening and center the hood beneath the cabinet.
11. From inside the hood, place screws into the exact center of each knockout hole and secure to the cabinet bottom. Finish tightening all screws until secure.

CAUTION: Make sure the range hood is secure before releasing!

Diagrams illustrate the mounting process under a cabinet, showing the use of filler strips and securing screws.