1. Mawu Oyamba
This manual provides essential information for the safe and efficient operation of your TOSOT Cosmo Series 12,000 BTU 115V Mini-Split Air Conditioner and Heating System. Please read it thoroughly before installation and use, and retain it for future reference.
The TOSOT Cosmo Series offers advanced climate control with features such as:
- Smart Control: Remote control via the Gree+ app and voice control capabilities.
- Mwachangu: Up to 19 SEER2 rating for energy savings.
- Ntchito Yokulirapo: Cools in temperatures up to 122°F and heats as low as -13°F.
- Kuchita Kwachete: Noise levels between 22dB and 36dB.
- Dongosolo Logwirizana: Provides cooling, heating, dehumidifying, and fan-only functions.


2. Zambiri Zachitetezo
Always adhere to local electrical codes and safety regulations during installation and operation. Improper installation or maintenance can lead to electric shock, fire, or serious injury.
- Installation must be performed by a qualified and certified HVAC technician.
- Ensure the power supply matches the unit's specifications (110-120V for this model).
- Osayesa kukonza kapena kusintha gawolo nokha. Lumikizanani ndi ogwira ntchito oyenerera.
- Keep children and pets away from the outdoor unit during operation.
- Ensure proper drainage for condensate to prevent water damage.
3. Kukhazikitsa ndi Kuyika
The TOSOT Cosmo Series Mini-Split system includes an indoor unit, an outdoor unit, and a 16 ft copper line set. Installation requires specialized tools and knowledge. It is strongly recommended that installation be performed by a professional HVAC technician.
3.1 Zophatikizidwa

Before beginning installation, verify that all components listed in the packaging diagram are present and undamaged. The unit set may arrive in multiple packages at different times.
3.2 Kusankha Kwatsamba
- M'nyumba Unit: Choose a location that allows for even air distribution, away from direct sunlight or heat sources. Ensure sufficient space around the unit for maintenance.
- Panja Unit: Select a stable, level surface with adequate clearance for airflow. Avoid locations where noise might be a disturbance to neighbors.
3.3 Installation Steps (Professional Installation Recommended)
- Mount the indoor unit's mounting plate securely on the wall.
- Drill a hole through the wall for refrigerant lines, drain hose, and electrical cables.
- Connect the refrigerant lines, drain hose, and electrical wiring to the indoor unit.
- Mount the indoor unit onto the mounting plate.
- Position and secure the outdoor unit.
- Connect the refrigerant lines and electrical wiring between the indoor and outdoor units.
- Perform vacuuming of the refrigerant lines to remove air and moisture.
- Release refrigerant into the system.
- Check for leaks and ensure all connections are secure.
- Connect the unit to the dedicated power supply.
Zindikirani: Proper wiring and refrigerant handling are critical for safety and system performance. Consult the detailed installation guide provided with your unit or a certified technician.
4. Malangizo Ogwiritsira Ntchito
Your TOSOT Mini-Split system can be controlled via the included remote control, the Gree+ / TOSOT+ mobile app, or voice commands.
4.1 Ntchito Yoyang'anira Kutali
The remote control allows direct access to all functions. Insert two AAA batteries (included) into the remote before use.

- Batani Lamphamvu: Kutembenuza unit ON / OFF.
- Batani la Modi: Cycles through Cooling, Heating, Dehumidifying, and Fan modes.
- Temperature Buttons (Up/Down): Imasintha kutentha komwe mukufuna.
- Liwiro Batani: Selects fan speed (e.g., Low, Medium, High, Auto).
- Batani Lagona: Imayatsa njira yogona kuti igwire ntchito mwakachetechete komanso kuti isunge mphamvu mukagona.
- Batani la Nthawi: Imayika nthawi zoyatsira/zozimitsa.
4.2 Smart Control (Wi-Fi and Voice Control)
The unit is Wi-Fi enabled and can be controlled remotely via the Gree+ or TOSOT+ app. It also supports voice control through compatible smart home devices (e.g., Google Assistant).
- Download the Gree+ or TOSOT+ app from your smartphone's app store.
- Follow the in-app instructions to connect your mini-split unit to your home Wi-Fi network.
- Once connected, you can adjust settings, monitor status, and schedule operations from anywhere.
- For voice control, link the Gree+ / TOSOT+ app with your preferred voice assistant.
4.3 Njira Zogwiritsira Ntchito

- Kuzizira: Provides 12,000 BTU/h of cooling capacity. Ideal for reducing room temperature.
- Kutentha: Provides 12,000 BTU/h of heating capacity. Suitable for warming the room.
- Njira Yochotsera chinyezi: Removes up to 71.04 pints of moisture per day, improving air quality and comfort.
- Mafilimu angaphunzitse: Circulates air without cooling or heating, with 7 adjustable fan speeds.
4.4 Mphamvu Mwachangu

The TOSOT Cosmo Series features a 19 SEER2 rating, signifying its high energy efficiency. This can lead to significant energy cost savings compared to lower SEER2 rated units.
5. Kusamalira
Regular maintenance ensures optimal performance and longevity of your mini-split system. Always turn off the power to the unit before performing any maintenance.
5.1 Kuyeretsa Zosefera Zamlengalenga
- Tsegulani gulu lakutsogolo la chipinda chamkati.
- Chotsani zosefera mpweya.
- Clean the filters with a vacuum cleaner or wash them with lukewarm water. Allow them to dry completely before reinserting.
- Clean filters every 2-4 weeks, or more frequently if the unit is used heavily or in dusty environments.
5.2 Outdoor Unit Maintenance
- Keep the area around the outdoor unit clear of debris, leaves, and vegetation to ensure proper airflow.
- Periodically clean the outdoor coil fins with a soft brush or water hose. Be careful not to bend the fins.
- Ensure the condensate drain line is free from blockages.
5.3 Professional Inspection
It is recommended to have a qualified HVAC technician inspect your system annually to ensure all components are functioning correctly and to perform any necessary deep cleaning or adjustments.
6. Mavuto
This section addresses common issues you might encounter. For problems not listed here, or if solutions do not resolve the issue, contact customer support.
| Vuto | Chifukwa Chotheka | Yankho |
|---|---|---|
| Chigawo sichiyatsa. | No power, circuit breaker tripped, remote batteries dead. | Check power supply, reset circuit breaker, replace remote batteries. |
| Kuziziritsa/kutentha kosakwanira. | Dirty air filters, blocked outdoor unit, incorrect mode/temperature setting, low refrigerant. | Clean air filters, clear obstructions from outdoor unit, verify settings, contact technician for refrigerant check. |
| Madzi akutuluka m'nyumba. | Blocked condensate drain line, improper installation angle, ice buildup. | Check and clear the drain line. Ensure the indoor unit is level. If ice buildup is suspected, turn off the unit and allow it to defrost, then check for underlying causes. Professional inspection is recommended for persistent issues. |
| Phokoso lachilendo. | Zigawo zotayirira, kutsekeka kwa fani, phokoso la kuyenda kwa mpweya mufiriji (mwachibadwa). | Inspect for loose components. If noise is persistent or unusual, contact a technician. |
| Wi-Fi connectivity issues. | Weak Wi-Fi signal, incorrect app setup, router issues. | Ensure strong Wi-Fi signal, re-follow app setup instructions, restart router. |
7. Zofotokozera
Key technical specifications for the TOSOT Cosmo Series 12,000 BTU 115V Mini-Split Air Conditioner and Heating System.
| Mbali | Tsatanetsatane |
|---|---|
| Nambala ya Model | GWH12ATCXB-A6DNA1AO |
| Mphamvu Yozizirira | 12,000 BTU |
| Kutentha Mphamvu | 12,000 BTU |
| SEER2 Rating | 19 |
| Voltage | 110-120V (AC) |
| Noise Level (Indoor) | 22-36 Decibels |
| Mtundu wa Refriji | R32 |
| Included Line Set Length | 16 ft Copper Line Set |
| Approximate Coverage Area | Kufikira 750 Square Feet |
| Miyeso ya Zamalonda (Gawo la M'nyumba) | 32.9"W x 10.8"H x 7.9"D (for 9,000 & 12,000 BTU models) |
| Miyeso ya Zamalonda (Gawo lakunja) | 28.8"W x 21.9"H x 13.0"D (for 9,000 & 12,000 BTU models) |
| Kulemera kwa chinthu | 100.2 mapaundi (dongosolo lonse) |
| Zapadera | Fast Cooling, Google Assistant, Wi-Fi Enabled |


8. Chitsimikizo ndi Thandizo
8.1 Chidziwitso cha Chitsimikizo
The TOSOT Cosmo Series Mini-Split Air Conditioner and Heating System comes with a Zaka 5 chitsimikizo. Please refer to the warranty card included with your product for full terms and conditions.
8.2 Thandizo la Makasitomala
For technical assistance, warranty claims, or any questions regarding your TOSOT product, please contact customer support. You can find more information and contact details on the official TOSOT store page:
Visit the TOSOT Store on Amazon
TOSOT is committed to providing secure packaging and US-based customer support.






