1. Bubuka
Thank you for choosing the COSMO COS-QB90 36-inch Under Cabinet Range Hood. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your new appliance. Please read all instructions carefully before use and retain this manual for future reference.
Émbaran Kasalametan penting
- Sok pegatkeun sambungan listrik sateuacan ngalayanan atanapi ngabersihkeun unit.
- Ensure proper installation by following all local codes and ordinances.
- Perkakas ieu dimaksudkeun pikeun pamakéan padumukan wungkul.
- Pikeun ngurangan résiko seuneu, make ukur ductwork logam.
- Never leave surface units unattended at high settings. Boil-overs cause smoking and greasy spill-overs that may ignite.
2. Produk Langkungview
The COSMO COS-QB90 is a 36-inch under cabinet range hood designed to effectively ventilate your kitchen. It features a durable stainless steel construction, powerful airflow, and user-friendly controls.
Komponén konci
- Perumahan stainless steel
- Push Button Control Panel
- Lampu LED
- ARC-FLOW Permanent Baffle Filters
- Twin Centrifugal Motors
- Duct Connector (Round 7.9-inch)

Gambar 2.1: Hareupeun view of the COSMO COS-QB90 range hood, showcasing finish stainless steel sarta panel kontrol na.

Gambar 2.2: Handap view of the range hood, highlighting the baffle filters and integrated LED lights.
3. Setup (Pasangan)
Proper installation is crucial for the performance and safety of your range hood. It is recommended that installation be performed by two people due to the size and weight of the appliance.
3.1 Cék Pra-Pamasangan
- Verify that the product dimensions (35.75" W x 22" D x 10" H) fit your installation site.
- Ensure electrical requirements (120V/60Hz, 3 Prong Plug) are met.
- Confirm duct size (Top Vented 7.9" Round) is compatible with existing ductwork or plan for new ducting.
- Bongkar sadaya komponén sareng parios naha aya karusakan.
3.2 Pamasangan Parentah
Use the provided installation template to mark drilling points for mounting screws and duct openings. Securely fasten the range hood to the underside of the cabinet and to the wall studs for stability.

Figure 3.1: Detailed dimensions and mounting points for the range hood, including top and rear air vents.
3.3 Pilihan Saluran
The COS-QB90 is designed for ducted operation. Connect the 7.9-inch round duct connector to your home's ventilation system. Flexible ducting is included for convenient installation. For optimal performance and reduced noise, rigid ducting (sold separately) is recommended.
For ductless (recirculating) operation, a Carbon Filter Kit (Part CFK5, sold separately) is required. Consult the Carbon Filter Kit instructions for installation details.

Gambar 3.2: Top view of the range hood, illustrating the round duct connection point.
3.4 Sambungan Listrik
Connect the range hood to a grounded 120V/60Hz electrical outlet. Ensure all electrical connections comply with local codes.
Video 3.1: Pamasangan réngséview for the Cosmo QB90 36-inch Under Cabinet Range Hood. This video demonstrates the general steps for mounting and connecting the unit.
Video 3.2: Quick Start Guide for Cosmo Under Cabinet Range Hood Q Series. This video provides a concise walkthrough of initial setup and basic functions.
4. Parentah Operasi
The COS-QB90 features a push-button control panel for easy operation.
4.1 Fungsi Panel Control

Figure 4.1: Close-up of the push button control panel.
- Tombol Daya: Pencét pikeun ngahurungkeun atanapi mareuman unit.
- Tombol Kagancangan Kipas (1, 2, 3): Select desired fan speed (Low, Medium, High) for ventilation.
- Tombol Lampu: Press to turn the LED lights ON or OFF.
4.2 Fungsi Timer
The range hood may include a timer function to automatically shut off the fan after a set period. Refer to the specific control panel markings for timer activation and adjustment.
5. Pangropéa
Pangropéa rutin ngajamin kinerja optimal sareng umur panjang tiung rentang anjeun.
5.1 Filter beberesih
The ARC-FLOW Permanent Baffle Filters are dishwasher-safe. For best results, remove filters and place them in the dishwasher. For manual cleaning, soak filters in hot water with detergent and scrub with a non-abrasive brush.

Figure 5.1: Close-up of a removable baffle filter.
5.2 beberesih exterior
Clean the exterior stainless steel surfaces regularly with a soft cloth and a non-abrasive stainless steel cleaner. Always wipe in the direction of the grain to prevent scratching.
5.3 Light Bulb Replacement
The range hood uses energy-efficient 1.5-watt LED lights. If replacement is necessary, ensure the power is disconnected and follow the instructions for safe removal and installation of new LED bulbs.

Gambar 5.2: View of the integrated LED lighting.
6. Cara ngungkulan
Sateuacan ngahubungan rojongan customer, ulangview masalah umum sareng solusi ieu:
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Fan teu beroperasi | No power; Motor failure; Control panel issue | Check power supply; Contact customer support for motor/control panel issues. |
| Lampu teu jalan | Faulty bulb; Wiring issue | Replace LED bulb; Check wiring connections. |
| aliran hawa teu cukup | Clogged filters; Restricted ductwork; Incorrect fan speed | Clean filters; Inspect ductwork for obstructions; Increase fan speed. |
| Sora kaleuleuwihi | Loose parts; Improper installation; Restricted airflow | Check for loose components; Ensure proper installation; Clear any airflow obstructions. |
7. Spésifikasi
| Fitur | Spésifikasi |
|---|---|
| Modél | COS-QB90 |
| Ukuran (W x D x H) | 35.75" x 22" x 10" |
| Kapasitas Aliran Udara | 500 CFM |
| Bahan | Beusi sténless |
| Tingkat Noise | As low as 40 dB (lowest speed) |
| Tipe Pamasangan | Di handapeun Kabinet Gunung |
| Kontrol Tipe | Kadali Tombol Dorong |
| Jumlah Speeds | 3 |
| cahayaan | 1.5-watt LED |
| Jenis Filter | ARC-FLOW Permanent Baffle Filters (Dishwasher-Safe) |
| Jenis ventilasi | Ducted (7.9" Round Top Vent) |
| Sarat listrik | 120V/60Hz, 3 Prong Plug |
| Item Beurat | 62.8 pon |
8. Garansi jeung Rojongan
8.1 Garansi kawates
This COSMO range hood comes with a 2-YEAR LIMITED PARTS WARRANTY. This warranty covers defects in materials or workmanship under normal use and service. Please retain your proof of purchase for warranty claims.
8.2 Rojongan Palanggan
Our customer support team is based in the USA and is available to assist with any questions or issues you may encounter. For technical assistance, warranty claims, or general inquiries, please visit our official websitus atanapi ngahubungan kami langsung.
- Websitus: www.cosmoappliances.com
- Surélék: support@cosmoappliances.com





