Saswell T21STK-2 - User Manual

1
OPERATING
T21STK-2
INSTRUCTION

Saswell T21STK-2 Specifications

General

Type	Smart Thermostat
Power Source	Battery
Temperature Range	5°C to 35°C
Accuracy	±0.5°C
Display	LCD
Communication	Wi-Fi
Backlight	Yes
Child Lock	Yes
Mounting	Wall Mounted
Programmable	7-day programmable

Summary

Thermostat Configuration Options

Select Cooling Cycle Rate

Sets cooling cycle speed (FA for faster, SL for slower).

Select Heating Cycle Rate

Sets heating cycle speed (FA for faster, SL for slower).

Select System Heating Type

Configures for gas, oil, electric, or heat pump systems.

Select Display Backlight

Controls LCD backlight behavior and duration.

Select Filter Replacement Run Time

Sets reminder for air filter change based on operating time.

Select Temperature Units

Changes temperature display unit between Fahrenheit and Celsius.

Select Temperature Recalibration

Adjusts displayed room temperature up or down by 4 degrees.

Select Compressor Lockout Delay

Sets off-time cycle to protect compressor from short cycling.

Intelligent Recovery

Calculates system activation time to reach setpoint by scheduled time.

Thermostat Operation Modes

Setting the Thermostat

Adjusts target temperature and system mode (HEAT/COOL/OFF).

Set Current Day and Time

Configures the thermostat's internal clock for accurate scheduling.

Filter Timer Management

Reviews and resets the air filter replacement reminder.

Manual Operation

Hold Temperature Function

Maintains a constant set temperature, overriding programmed schedule.

Temperature Override

Temporarily changes temperature until next scheduled period.

Programming Your Thermostat

Program Planning and Scheduling

Guides users on determining and recording daily heating/cooling schedules.

Enter Heating Program

Step-by-step guide to setting weekday and weekend heating schedules.

Enter Cooling Program

Guide to setting weekday and weekend cooling schedules.

Check Your Programming

Verifies entered heating and cooling schedules for accuracy.