DIGITAL ROOM THERMOSTAT

General Specifications

The HT250S RF is a wireless room thermostat. It allows users to adjust room temperature for comfortable and economic heating/cooling.

• Precise Temperature Measurement
• Heating Calibration
• Heating/Cooling Modes
• ON/OFF Control
• Wireless Connection
• TPI Algorithm

HT250S RF and Equipments

Room Thermostat

Includes: Holder, Alkaline Battery

Receiver

Includes: Dowels and Screws

Technical Data

Room Thermostat

Receiver

Room Thermostat Controls

Diagram Description: Diagram of the Room Thermostat control panel. It shows a digital display with current temperature (e.g., 22.3°C) and set temperature (e.g., 22.5°C). Numbered indicators are: 1. Battery Indicator ?, 2. Room Temperature display, 3. Set Temperature display, 4. Cooling Indicator (blinking/steady), 5. Heating Indicator (blinking/steady), and 6. ON/OFF and Temperature Setting Button.

Control Descriptions

• 1. Battery Indicator: ? Shows battery status.
• 2. Room Temperature: Displays the current room temperature.
• 3. Set Temperature: Displays the desired temperature.
• 4. Cooling Indicator: Blinking indicates the cooling unit is working; steady indicates it is not working.
• 5. Heating Indicator: Blinking indicates the heating unit is working; steady indicates it is not working.
• 6. ON/OFF and Temperature Setting Button: Used for power and temperature adjustments.

Receiver

Diagram Description: Diagram of the Receiver with connection points labeled: 1. Manual Operation Button, 2. Pairing Button, 3. Receiver LED Light, 4. Receiver Power Cable Input, 5. Heating/Cooling Unit Connection Cable Input. A separate wiring diagram shows AC (230V) power input connected to COM and NO terminals, with outputs for the Heating/Cooling Unit.

Receiver LED Descriptions

Room Thermostat Placement

Place the thermostat in the most frequently used room (e.g., living room). Avoid areas with drafts (room entrances, near windows), heat sources (radiators, stoves), or direct sunlight. Mount approximately 150 cm above the floor. Experiment to find the optimal location.

Diagram Description: Diagram illustrating recommended placement for the Room Thermostat. It shows a wall with a height indicator of 150 cm, and a minimum distance of 20 cm from corners or walls.

Battery Placement

To replace batteries: Separate the front cover by pressing a screwdriver into the indicated slot and bending tabs. Insert 2 new AAA alkaline batteries, ensuring correct polarity. Reattach the front cover.

Low Battery Warning: The "Lb" icon ? indicates low battery. Replace batteries promptly.

Warning: Remove batteries if the product will not be used for over 15 days to prevent malfunctions. Dispose of old batteries responsibly.

Receiver Placement

Avoid physical contact between the receiver and the heating/cooling unit. Protect it from liquids and dust. For optimal signal reception:

• Do not mount on metal surfaces.
• Keep away from electrical cables and electronic equipment (computers, TVs).
• Avoid large metal structures or building materials that can interfere with signals (e.g., special glass, concrete with fine metal meshes).
• Maintain a distance of no more than 20 meters or 2 floors between the Room Thermostat and Receiver.
• Install the Receiver at least 50 cm away from the heating/cooling unit.

Receiver Setup

Important: First, shut down the heating/cooling unit and its power source.

1. Connect the heating/cooling unit cable to the Receiver's COM and NO terminals as shown in the wiring diagram.
2. Connect the other end of the cable to the room thermostat connection terminal as per your heating/cooling unit's manual.
3. Connect the Receiver's power cable to the Receiver and then to the fuse connected to the heating/cooling unit.
4. After connections, turn on the fuse, then the heating/cooling unit.
5. Press the Receiver's manual operation button for 2 seconds to see a blinking orange light, confirming the unit is active. Press again for 2 seconds to turn off the orange LED.
6. Proceed to set up the Room Thermostat for pairing with the Receiver.

Receiver Wiring Diagram

Diagram Description: Diagram showing AC (230V) power input connected to COM and NO terminals on the Receiver, with connections for the Heating/Cooling Unit.

HEATING/COOLING UNIT

Warning: All work on the heating/cooling unit or electrical installation must be performed by qualified professionals.

Pairing the Room Thermostat and Receiver

1. Press the Receiver's sync button for 2 seconds until the green LED blinks.
2. With the Room Thermostat turned OFF, press and hold the button for 3 seconds.
3. Press the button until the "Rd." menu appears.
4. Adjust the setting using the right ▶️ or left ◀️ buttons.
5. Successful pairing is indicated by a constant green flashing LED on the Receiver.

Room Thermostat Temperature Calibration

Room thermostat sensors are sensitive. Calibrate if temperature readings differ from other thermometers.

1. With the device turned OFF, press and hold the button for 3 seconds.
2. Press until the "CAL" menu appears.
3. Adjust the temperature difference (between -8°C and +8°C) using the right ▶️ or left ◀️ buttons.
4. Press the "On/Off" button until the device turns off to save and exit.

Note: Recommended calibration is 0.0°C.

Room Thermostat Heating/Cooling Modes

Switch between heating and cooling modes:

1. With the device turned OFF, press and hold the button for 3 seconds.
2. Press until the "Fun" menu appears.
3. Select "HER" (heating) or "DD" (cooling) using the right ▶️ or left ◀️ buttons.
4. Press the button until the device turns off to save and exit.

The selected mode will be active upon turning the device on.

Factory Settings Reset

Resets calibration and heating/cooling modes to default factory settings.

1. With the device turned OFF, press and hold the button for 3 seconds.
2. Press until the "5" menu appears.
3. Select the "45" option using the right ▶️ or left ◀️ buttons and press the button.

The device will turn off and reset.

TPI Room Thermostat Working Logic

The HT250S RF uses the TPI (Time Proportional Integral) algorithm. This technology predicts temperature changes to optimize heating/cooling unit operation, ensuring stable temperatures and energy efficiency by minimizing deviations.

What is TPI?

TPI technology enhances energy efficiency by precisely timing heating/cooling system operation to maintain the set temperature.

How does TPI work?

The thermostat's software learns the thermal characteristics of the environment. It maps the home's temperature changes and calculates the optimal run times for the heating/cooling unit to reach and maintain the desired temperature, thus minimizing energy consumption.

What is the difference?

Unlike traditional On/Off thermostats that cycle frequently, TPI thermostats provide smoother temperature control, higher comfort, and greater energy savings by predicting temperature trends.

Heating Mode

The thermostat bases its operation on the average room temperature over the last 40 seconds. The TPI algorithm learns how to reach and maintain the desired temperature, ensuring it stays within a narrow range.

Diagram Description: Graph titled 'TPI Room Thermostat Heating Mode Working Graphic'. The Y-axis represents Temperature (°C) from 5°C to 30°C. The X-axis represents Time. It shows a 'Desired Temperature' line at approximately 23°C. The 'TPI Room Thermostat' line fluctuates around the desired temperature, demonstrating controlled heating cycles that maintain the temperature within a narrow band, avoiding large swings.

Cooling Mode

Similar to heating mode, the thermostat uses the average room temperature over the last 40 seconds. The TPI algorithm learns and maintains the desired cooling temperature within a stable range.

Diagram Description: Graph titled 'TPI Room Thermostat Cooling Mode Working Graphic'. The Y-axis represents Temperature (°C) from 5°C to 30°C. The X-axis represents Time. It shows a 'Desired Temperature' line at approximately 23°C. The 'TPI Room Thermostat' line fluctuates around the desired temperature, demonstrating controlled cooling cycles that maintain the temperature within a narrow band, avoiding large swings.

Communication and Safety

The Room Thermostat sends status signals to the Receiver every 10 minutes to maintain synchronization. If no signal is received for 22 minutes, the system assumes a connection break and stops heating/cooling for safety.

In case of power restoration after an outage, the Receiver will not operate the heating/cooling unit until it receives an 'operate' signal from the Room Thermostat. If the Room Thermostat is functioning normally, it will automatically send signals.

Important Notes on TPI Room Thermostats

• Changing the thermostat's placement restarts the learning process, which takes approximately 7 days.
• Removing batteries (de-energizing) also restarts the 7-day learning process.

Frequently Asked Questions

Is my Room Thermostat compatible with my heating/cooling unit?

The thermostat is compatible with heating/cooling units that have simple ON/OFF connections. Consult your unit's manual or service provider for details.

How will I connect my heating/cooling unit with my Receiver?

Connection should be performed by qualified professionals. A 2x0.75 mm² cable is sufficient. Connect one end to the room thermostat terminals (as per your unit's manual) and the other end to the Receiver's COM and NO inputs (refer to the RECEIVER WIRING DIAGRAM). Cable direction does not matter.

Declaration of Conformity

ISIPARK İÇ VE DIŞ TİC. İNŞ. ISITMA SİSTEMLERİ OTO. SAN. A.Ş. confirms that the product marked with CE complies with relevant directives.

• Brand: GENERAL Life
• Product Name: HT250S RF
• Product Type: Digital Room Thermostat
• Compatible Directives: Radio and Telecommunications Terminal Equipment Regulation 2014/53/EU, Electromagnetic Compatibility Regulation 2014/30/EU, Low Voltage Directive 2014/35/EU.

Additional Information: Compliance covers the product itself. ISIPARK is not responsible for the entire system's compliance. This statement is void if modifications are made without approval.

Warranty Certificate

Manufacturer Information

• Title: ISIPARK İÇ VE DIŞ TİC. A.Ş.
• Address: Fatih Mah. 1188 Sk. No:13/A Sarnıç - Gaziemir - İZMİR - TÜRKİYE
• Tel: +90 (232) 457 99 50
• Fax: +90 (232) 457 91 22
• E-mail: generallife@generallife.com.tr

Product Details

• Type: Digital Room Thermostat
• Brand: GENERAL Life
• Model: HT250S RF
• Warranty Period: 5 Years
• Max. Time to Repair: 20 Days

Vendor Information

(Vendor details such as Title, Address, Tel, E-Mail, Invoice Date, Delivery Info, Authorized Signature, and Company Stamp are to be filled by the vendor.)

Warranty Conditions

1. The warranty period starts from the invoice date and is warranted against manufacturing defects for 5 years.
2. Devices and apparatus are delivered to the customer in working condition. On-site commissioning is subject to a service fee.
3. The repair of devices and apparatus covered by the warranty is carried out at the company factory and should be sent via contracted transportation. For on-site services, transportation and accommodation expenses belong to the customer.
4. Maintenance of devices and apparatus is done at the company. Round travel fares for maintenance belong to the customer.
5. In case of malfunctioning during the warranty period, the company tests if the fault is customer or manufacturer-induced and reports it.
6. If manufacturer-induced errors are detected, the customer can request a replacement or repair at full expense by the manufacturer, unless it exceeds the product's price.
7. If faults are determined to be customer-caused, all expenses belong to the customer.
8. Customers must be aware of product damages and warn the manufacturer from the start of the warranty duration. Failure to do so forfeits rights under article 6.
9. Malfunctions from using devices contrary to the User Manual are not covered.
10. Devices are out of warranty if beaten, broken, or scratched by the customer.
11. Damages from using devices of other brands/models without manufacturer approval are not covered.
12. Battery leakage and errors due to rust, oxidation, or liquid contact in acidic/humid environments are not covered.
13. When the product is not used for a long period (more than 15 days), remove batteries. Otherwise, malfunctions are out of warranty.
14. Damages during transportation are not covered. Customers may take transportation insurance.
15. Damages caused by mains voltage / faulty electrical installation are not covered.
16. Devices are out of warranty for malfunctions caused by force majeure (fire, flood, earthquake, etc.).
17. All devices and apparatus, including all parts, are under the company's warranty.
18. The repair period is added to the warranty period. The repair period cannot exceed 20 working days from the date of notification to the service station or seller. The consumer can report issues via phone, fax, e-mail, or letter. If the product is not repaired within 20 working days, the manufacturer must provide a similar replacement product until repair is completed.
19. Even if the consumer uses repair rights, if the product breaks down 4 times in a year or 6 times during the warranty period affecting its main purpose, or if repair exceeds the maximum time, or if repair is impossible as determined by a report, a refund or price discount can be requested.
20. Customers can make complaints to consumer courts or arbitration committees.
21. The warranty document must be kept by the customer. If lost, a second document will not be issued, and repair/replacement will be a paid service.

ISIPARK reserves the rights of changing product specifications and user manuals. For all changes, visit generallife.com.tr.