Saiko SK99 Programmable Thermostat User Manual


Saiko SK99 Programmable Thermostat 



  • Display Type: LCD
  • Voltage: 85-265V
  • IP Rating: IP20
  • External Limita:  5-60 Deg C(Factory Setting: 35 Deg C)
  • Housing Mater: Anti-Flammable PC
  • Setting Range: 5-90 Deg C (Can Adjust to 35-90 Deg C)
  • Production Capacity: 20000PCS/Month
  • Brand: Saiko


The Saiko SK99 Programmable Thermostat is a device designed to help regulate the temperature of a home or office. It allows users to set the desired temperature at different times of the day, allowing for greater energy efficiency and cost savings. The SK99 has a large, easy-to-read LCD display that shows the current temperature and allows users to easily navigate the programming settings. The thermostat is fully programmable, meaning that users can set different temperature levels for different times of the day or week. This feature is particularly useful for those who want to save on energy costs by reducing heating or cooling when they are not at home.

The SK99 also has a number of advanced features, such as the ability to control multiple heating or cooling zones, a vacation mode, and a hold feature that allows users to temporarily override the programmed temperature settings. Additionally, the thermostat is compatible with most HVAC systems, making it a versatile option for homes or offices with different heating and cooling needs. Overall, the Saiko SK99 Programmable Thermostat is a reliable and user-friendly device that can help users save on energy costs while maintaining a comfortable temperature in their living or workspace.


  • Thermostat
  • User Manual
  • Screws
  • External Sensor


  • This SK99 Thermostat is a Touch Screen Thermostat, which is designed for an electric floor heating system or water heating system. Using 4.0-inch color touch LCD display, the working status can be easily understood.
  • With six modes, the system can work according to your desired pre-set temperature conveniently. And the 5+1+1 days programmable function, which is easy-to-program on/off settings per day.
  • Simple regulation which sends On/Off commands to the heating system according to a pre-selected temperature variation. The thermostat control algorithm includes an anticipation function that reduces the discrepancy between the thermostat reading and the temperature at the center of the room.
  • Choose from sensor settings: Ambient (built-in sensor)- to control the air temperature; Floor – to control the temperature using the floor probe; Ambient and Floor – to control the ambient air, and show floor temperature by using the floor probe.
  • The thermostat is recommended for control of electric heating devices or on/off valve actuators used in hydronic floor heating. The thermostat is controlled by Internal and external sensor temperature.Saiko-SK99-Programmable-Thermostat-featuredSaiko-SK99-Programmable-Thermostat-featured

Technical data

  • Power consumption 2W
  • Ambient temperature -5~ 50 °C
  • Protective housing IP20
  • Housing material Anti-flammable PC
  • Setting range 5~35 °C(adjustable5~50 °C)
  • External limitation 5~60 °C(Factory Settings 35°C)
  • Switch differential 0.5~10 °C adjustable
  • Inputs 2 x NTC10K temperature sensors
  • Output 1 x switch relay(R1),max 3500watts
  • Operating RH 0~95% (noncondensing)
  • Sensor NTC internal/external sensor
  • Dimensions 80mm x 120mm x36mm
  • Backlight life 5,000 hours


  • Adjustable Comfort Mode, Economy Mode, Party Mode, Holiday Mode, and Program-Made Control
  • 5+1+1 Weekly Programmable for Energry Saving operation
  • External and Internal Sensor
  • Clock and Date Display
  • Temperature Calibration
  • Over-heating Protection
  • On/ off Control Output for Heating Device
  • Symbol indicator when heating is on
  • Temperature limitation function
  • Highly reliable Single-chip Microcontroller used
  • Black, silver, White Appearance


  • Large, touchscreen display;
  • European standard installation box;
  • White lighted display for easier low-light viewing;
  • Larger, easy-to-read character size;
  • Intuitive menu-driven set-up, programming, and operation;
  • Permanent program retention during power loss;
  • Setpoint temperature limited range capable;



The Saiko SK99 Programmable Thermostat is a device used for controlling the temperature in a building. Here’s how to use it:

  1. Set the time: The first step is to set the time and date on the thermostat. Press the “SET” button, and then use the up and down arrows to adjust the time and date.
  2. Choose the mode: The next step is to select the mode of operation. The thermostat has three modes: “Heat,” “Cool,” and “Auto.” Press the “MODE” button to cycle through the modes and select the one you want.
  3. Set the temperature: Once you have selected the mode, use the up and down arrows to set the temperature you want. The temperature range is from 5°C to 35°C.
  4. Set the program: The Saiko SK99 thermostat allows you to set different temperature programs for different times of the day. Press the “PRGM” button, and then use the up and down arrows to set the temperature for each time period. You can set up to 6 different temperature programs per day.
  5. Confirm the settings: After you have set the time, mode, temperature, and program, press the “SET” button to confirm your settings. The thermostat will display the temperature and mode you have selected.
  6. Use the thermostat: The Saiko SK99 thermostat will automatically adjust the temperature according to the program you have set. If you want to make changes to the temperature, mode, or program, simply press the corresponding button and make the necessary adjustments.


Installing the Saiko SK99 Programmable Thermostat involves a few steps, but it’s a relatively straightforward process. Here are the steps to follow:

  1. Turn off the power to your HVAC system: Before you start installing the thermostat, turn off the power to your HVAC system at the circuit breaker or fuse box.
  2. Remove your old thermostat: If you have an existing thermostat, remove it from the wall by unscrewing any screws or pressing any clips that hold it in place.
  3. Install the mounting plate: Place the mounting plate for the Saiko SK99 thermostat on the wall and mark where the screws need to go. Drill the holes and insert the wall anchors if necessary. Then, secure the mounting plate to the wall with screws.
  4. Connect the wires: Connect the wires from your HVAC system to the corresponding terminals on the back of the Saiko SK99 thermostat. The wiring diagram for your HVAC system should be included in the instructions for the thermostat.
  5. Attach the thermostat: Attach the Saiko SK99 thermostat to the mounting plate by snapping it into place.
  6. Turn on the power: Once the thermostat is securely mounted, turn the power back on to your HVAC system.
  7. Set up the thermostat: Follow the instructions in the user manual to program the thermostat and set it up for your specific HVAC system and preferences.


Q: What is the Saiko SK99 Programmable Thermostat?
A: The Saiko SK99 Programmable Thermostat is a digital thermostat that allows you to control your heating and cooling system in your home or office. It allows you to program temperature settings for different times of the day, so you can have the perfect temperature when you wake up, leave for work, and return home.

Q: How do I install the Saiko SK99 Programmable Thermostat?
A: The Saiko SK99 Programmable Thermostat can be easily installed by following the step-by-step instructions provided in the user manual. Generally, the installation process involves turning off the power to your HVAC system, removing your old thermostat, connecting the wires to the new thermostat, and mounting the new thermostat on the wall.

Q: Is the Saiko SK99 Programmable Thermostat compatible with my HVAC system?
A: The Saiko SK99 Programmable Thermostat is compatible with most 24-volt heating and cooling systems, including gas, oil, electric, and heat pumps. However, it’s always a good idea to check the compatibility of your HVAC system before purchasing a new thermostat.

Q: How many temperature settings can I program on the Saiko SK99 Programmable Thermostat?
A: The Saiko SK99 Programmable Thermostat allows you to program up to 4 temperature settings per day, with separate settings for weekdays and weekends.

Q: Can I control the Saiko SK99 Programmable Thermostat with my smartphone?
A: No, the Saiko SK99 Programmable Thermostat does not have smartphone compatibility. However, you can easily program and adjust the temperature settings on the thermostat itself.

Q: What is the warranty for the Saiko SK99 Programmable Thermostat?
A: The Saiko SK99 Programmable Thermostat comes with a 2-year warranty from the date of purchase. This warranty covers defects in materials and workmanship but does not cover damage caused by improper installation, misuse, or normal wear and tear.

Q: Where should a thermostat be installed?
A: Your kitchen, air vents, direct sunlight, hallways, windows, and doors are all undesirable locations for your thermostat. The optimal location is on an interior wall, far from all of these locations. It should ideally be put in the middle of your house.

Q: How much can you save with a programmable thermostat?
A: You should keep in mind that you will consume 1% less energy for every degree you lower your thermostat. According to ENERGY STAR, households who use programmable thermostats effectively can save around $180 annually.

Q: Are temperature sensors present in thermostats?
The sensor informs your thermostat of the temperature in the space in which it is installed. Additionally, you may program your thermostat to use different sensors at various times of the day and select which A: sensor operates it.

Q: Can a thermostat manage two appliances?
A: The temperature in both rooms would be influenced by the temperature of the thermostat, which is not ideal, thus it is crucial to remember that connecting more than one heater from different rooms to a single thermostat is not advised.

Q: Can a thermostat affect the situation?
A: Your system will be better and operate more effectively while saving you money, so a new thermostat will undoubtedly improve convenience and comfort. You can speak with Service Champions if you want to replace your thermostat.Saiko-LOGO

Saiko SK99 Programmable Thermostat User Manual





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