Tosot Cosmo 34,000 BTU 20 SEER2 Ducted Mini Split Heat Pump with R32 Refrigerant 208/230V | TST-SU-C36KD

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Tosot Cosmo 34,000 BTU 20 SEER2 Ducted Mini Split Heat Pump with R32 Refrigerant 208/230V
Condition:
New
Width:
39.40 (in)
Height:
29.30 (in)
Depth:
16.80 (in)

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Overview

Tosot Cosmo 34,000 BTU 20 SEER2 Ducted Mini Split Heat Pump with R32 Refrigerant 208/230V | TST-SU-C36KD

Tosot Cosmo 34,000 BTU 20 SEER2 Ducted Mini Split Heat Pump with R32 Refrigerant 208/230V
Product details

Description

Overview

The Tosot Cosmo 34,000 BTU concealed ducted mini split is a complete single-zone heat pump system: indoor unit, inverter outdoor unit, remote and installation package. It is rated at 20 SEER2 and 8.5 HSPF2, runs on 208/230V single-phase power and uses R32 refrigerant.

Concealed ducted units hide above the ceiling or in a closet and feed several rooms through short duct runs, so only the grilles are visible. This system is sized for up to about 1,800 sq. ft.

Key Features

  • Commercial-grade airflow: High-CFM indoor sections for large rooms, open plans, shops and offices.
  • DC inverter compressor: Smooth, efficient capacity control with R32 refrigerant.
  • Wi-Fi control: TOSOT+ app control and scheduling.
  • Built-in safety: Refrigerant leak detection and condensate overflow protection where equipped.
  • Wide operating range: Reliable cooling and heating across extreme outdoor temperatures.
  • Up to 20 SEER2 energy efficiency
  • High static pressure range (0–275 Pa) for extended duct runs
  • Ultra-slim design saves space in tight installations
  • Built-in auto-drainage system for hassle-free condensate removal
  • Integrated float switch for overflow protection

Performance & Efficiency

Rated capacity is 33,600 BTU/h cooling and 34,000 BTU/h heating, with an EER/COP of 3.51 / 3.73 W/W. The inverter compressor ramps up quickly to reach the setpoint, then slows down to hold it, which avoids the on/off cycling of single-speed equipment and cuts power use. The outdoor unit is rated to operate from -13 – 122°F.

Comfort & Control

Every indoor unit includes a wireless remote, and the TOSOT+ app adds Wi-Fi control, scheduling and voice control through Alexa or Google Home. Sleep, quiet and turbo modes, auto restart after a power outage and a dehumidification (dry) mode are built in.

What's Included

  • Indoor unit
  • Outdoor unit
  • Wireless remote controller
  • 16 ft pre-flared copper line set, signal cable and power cord

Installation

Plan the indoor unit location, line set route, condensate drain and a dedicated electrical circuit before ordering.

Frequently Asked Questions

Is this a heat pump?
Yes. It provides both cooling and heating.

How large a space can it handle?
Up to about 1,800 sq. ft. under typical conditions. Rooms with high ceilings, lots of glass or poor insulation may need more capacity.


Tosot covers the system for 5 years.

Can I control it from my phone?
Yes. The TOSOT+ app provides Wi-Fi control, schedules and voice control with Alexa and Google Home.

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Comfort for the people who live there

The right equipment keeps the rooms you live in steady and quiet, whether it's dinner in the kitchen or a weekend project in the garage.

Specifications

Extra Information

Find your comfort-ready size with confidence

Get a fast, learning-friendly estimate for tons and BTUs, then review it with a Pro to dial in the perfect fit for your home.

Brand:
TOSOT
Width:
39.40 (in)
Height:
29.30 (in)
Depth:
16.80 (in)
Weight:
184.10 LBS
Safety Information:
⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Prop 65 Warning:
Yes
Refrigerant Type:
R-32
Compressor Type:
Inverter
Capacity (Tons):
3
Cooling Capacity (BTU):
34,000
Configuration:
Ducted
Mount Type:
Concealed Ducted
System Type:
Heat Pump
Zones:
1
Electrical Phase:
1-Phase
Electrical Frequency:
60 Hz
Voltage / Phase:
208/230V 1-Phase
Connection Type:
Flared
SEER2:
20+ SEER2
Cold Climate:
No
System Performance - Model:
GWH36ATEXH-D6DNA1G/O (outdoor)
System Performance - Cooling Capacity:
33,600 BTU/h
System Performance - Heating Capacity:
34,000 BTU/h
System Performance - SEER2 / HSPF2:
20 / 8.5
System Performance - EER / COP:
3.51 / 3.73 W/W
System Performance - Coverage Area:
Up to 1,800 sq. ft.
System Performance - Outdoor Operating Range:
-13 to 122°F
System Performance - Power Supply:
208/230V, 1Ph, 60Hz
System Performance - Rated Current:
20 A
System Performance - Rated Input Power:
4,000 W
System Performance - Minimum Circuit Ampacity (MCA):
23 A
System Performance - Max Overcurrent Protection (MOP):
35 A
Indoor Unit (Concealed Ducted) - Airflow:
1,148 CFM
Indoor Unit (Concealed Ducted) - External Static Pressure:
0–275 Pa
Indoor Unit (Concealed Ducted) - Sound Level:
48–54 dB(A)
Indoor Unit (Concealed Ducted) - Dimensions (W x H x D):
52.8 x 25.8 x 10.2 in
Indoor Unit (Concealed Ducted) - Net / Shipping Weight:
94.8 lb / 108 lb
Outdoor Unit - Compressor:
DC inverter
Outdoor Unit - Dimensions (W x H x D):
39.4 x 29.3 x 16.8 in
Outdoor Unit - Net / Shipping Weight:
122.4 lb / 133.4 lb
Line Set & Piping - Included Copper Line Set:
16 ft, pre-flared
Line Set & Piping - Line Sizes:
1/4" liquid / 5/8" gas (flare)
Line Set & Piping - Signal Cable / Power Cord:
19 ft / 19 ft
Line Set & Piping - Max Line Length / Height:
131.2 ft / 82 ft
Line Set & Piping - Refrigerant:
R32
Minimum Heating Temp (°F):
-13
Please Note: To validate the manufacturer's warranty, equipment must be installed by a qualified licensed professional in accordance with local codes and the manufacturer's installation requirements.

2023 Energy Standards

Department of Energy (DOE) State Regulations – Effective 2023

Click the link below to view the energy standards applicable to your region.

DOE State Standards Document

Department of Energy (DOE) State Regulations – Effective 2023

Click the link below to view the energy standards applicable to your region.

DOE State Standards Document

Documents & warranty
Warranty
5 Years Compressor & 5 Years Parts | Registration Required within 60 Days of Purchase
Frequently asked questions
What refrigerant does the use?
It uses R-32 refrigerant.
What size is the ?
The is a 3 ton unit.
How much cooling does the provide?
It is rated for 34,000 BTU of cooling.
How many zones does the support?
It supports 1 zone(s).
What power supply does the need?
It requires 208/230V 1-Phase power.
What is the SEER2 rating of the ?
The is rated at 20+ SEER2 SEER2.
How cold can it be outside for the to keep heating?
It is rated to heat down to -13 °F outdoors.
What warranty comes with the TST-SU-C36KD?
5 Years Compressor & 5 Years Parts | Registration Required within 60 Days of Purchase
Who makes the TST-SU-C36KD?
The TST-SU-C36KD is made by TOSOT.

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