Introduction
A wireless set for controlling standard heating devices like gas boilers. It features simple construction, intuitive operation via keys, and a large, legible display. The built-in Wi-Fi module allows easy configuration with the ENGO Smart mobile application. The controller supports sharing with multiple users, scheduling, and PIN lock. It comes factory paired and ready to use.
Product Features
- Wi-Fi 2.4 GHz communication standard ?.
- Wireless communication in the 868 MHz standard.
- Compatibility with the ENGO Smart application.
- Possibility to set minimum and maximum setpoint temperature ranges.
- HEATING/COOLING function ?/❄️.
Technical Specifications
| Specification | Details |
|---|---|
| Thermostat power supply | 2xAA batteries ? |
| Receiver power supply | 230V AC 50 Hz |
| Max load of the receiver | 16(5)A |
| Receiver output signal | COM/NO (voltage free) |
| Temperature control range | 5.0°C - 35.0°C |
| Control algorithm | TPI or Hysteresis (±0.2°C to ±2°C) |
| Communication | Wireless, 868 Mhz + Wi-Fi 2.4 GHz ? |
| Dimensions [mm] | Transmitter: 80 x 80 x 22 Receiver: 96 x 96 x 27 |
Product Compliance
This product complies with the following EU Directives: 2014/53/EU, 2016/65/EU. Operates on 868.0 MHz - 868.6 MHz (<13dBm) and Wi-Fi 2.4 GHz ?.
Safety Information
Use in accordance with national and EU regulations. Use the device only as intended, keeping it in a dry condition. The product is for indoor use only. Read the entire manual before installation or use.
Installation Guide
General Notes
This document is a brief manual highlighting the product's most important features and functions. Installation must be performed by a qualified person with appropriate electrical qualifications, in accordance with current standards and regulations. The manufacturer is not responsible for non-compliance with instructions.
⚠️ WARNING: For the entire installation, there may be additional protection requirements, which the installer is responsible for.
Wall Mounting the Regulator (Thermostat)
- Attach the mounting plate to the wall.
- Insert the batteries (2xAA ?).
- Attach the thermostat to the plate.
Wiring Diagrams
a) Connection diagram of the receiver to the heat source
The receiver (battery powered) connects to the heating source. Wiring involves connecting L and N from the 230V AC 50 Hz power supply to the receiver, and then connecting the heating source via COM and NO terminals on the receiver.
b) Connection diagram of the receiver to the pump / actuator
The receiver (battery powered) connects to a pump or actuator. Wiring involves connecting L and N from the 230V AC 50 Hz power supply to the receiver, and then connecting the pump/actuator via COM and NO terminals on the receiver.
c) Connection diagram of receiver to control box
The receiver (battery powered) connects to a control box. Wiring involves connecting L and N from the 230V AC 50 Hz power supply to the receiver, and then connecting the control box via COM and NO terminals on the receiver.
Receiver Description
Receiver's Switches
- LEFT SWITCH: 1. Receiver ON, 2. Receiver OFF
- RIGHT SWITCH: 3. MANUAL - Receiver works in manual mode (according to the left switch), 4. AUTO - Receiver works in AUTO mode (according to the thermostat's command)
LED Indications in the Receiver
The receiver status is indicated by two LEDs: red (upper) and orange (lower).
| LED | Description |
|---|---|
| Red LED flashes | Receiver and thermostat prepared for app installation; or after running "APP" parameter YES; or after removing thermostat from app (auto pairing mode). |
| Red LED steady | E20i Wi-Fi not installed in app (offline mode); or app pairing mode timed out (within 10 minutes). |
| Green LED solid | Receiver connected to router, but no Internet connection (router offline). |
| Green LED flashes | Receiver lost connection with router (router off). |
| Blue LED solid | Receiver connected to router with Internet access (router online). |
| Blue LED flashes | Receiver paired but lost communication with thermostat (out of range or low battery ?). Flashes after 15 minutes. |
| Orange LED solid | Receiver received heating/cooling signal from thermostat (AUTO mode), or started in manual mode (ON + MANUAL switch). |
| Orange LED flashes | Receiver is in pairing mode, looking for thermostat signal (activate "SYNC" parameter on thermostat). |
| Orange LED off | Receiver does not send heating/cooling signal. |
| Pink LED on | Update process started. Click any thermostat button to turn on backlight. |
LCD Icon Description (Thermostat Display)
- 1. Button
- 2. Button
- 3. Button +
- 1. Internet connection icon ?
- 2. Send a signal (pairing) icon
- 3. Current/Setpoint temperature display
- 4. Heating indicator icon ?
- 5. Cooling indicator icon ❄️
- 6. Schedule mode icon
- 7. Temporary override mode icon
- 8. FROST (anti-freeze mode) icon ❄️
- 9. Temperature unit (°C/°F)
- 10. Settings icon / temperature settings ⚙️
- 11. Settings icon ⚙️
- 12. Button lock icon ?
- 13. Battery indicator icon ?
Button Functions
- + Button: Change parameter value up.
- - Button: Change parameter value down.
- - Button (short press, Online mode): Manual/Schedule mode switch.
- - Button (hold 3 seconds): Enter installer parameters ⚙️.
- - Button (hold 5 seconds, standby): Turn OFF/ON thermostat.
- + & - Buttons (hold until PA appears): Enter pairing mode.
- + & - Buttons (hold until SY appears): Pairing transmitter with receiver.
- + & - Buttons (hold until FA appears): Factory reset ?.
- - Button (hold 3 seconds): Lock/Unlock thermostat keys ?.
- + Button (hold 3 seconds): Heating/Cooling mode change ?/❄️.
App Setup and Pairing
Installation of Thermostat in the App
Ensure your router is within range of your smartphone and you are connected to the Internet. Use only a 2.4GHz Wi-Fi network ?.
STEP 1 - Download ENGO SMART APP
Download and install the ENGO Smart app from Google Play or the Apple App Store on your smartphone.
STEP 2 - Register a New Account
- Click "Register" to create a new account.
- Enter your email address to receive a verification code (valid for 60 seconds).
- Set your login password.
STEP 3 - Connect the Thermostat to Wi-Fi
After installing the app and creating an account:
- On your mobile device, grant ENGO Smart app permissions (Location, Bluetooth, Nearby devices). Turn on Bluetooth and Location. Connect to the 2.4GHz Wi-Fi network you want the device to use ?.
- Select the Wi-Fi network and enter its password.
- Wait for the app to configure the thermostat with the selected Wi-Fi network.
- Connect the receiver to the power supply. The red LED will flash, indicating readiness for app addition. If not flashing, proceed to next steps.
- Go to "Add Device" in the app.
- After finding the thermostat, select "Add".
- The thermostat will display the main interface.
- Press and hold the - & + buttons for approximately 5 seconds until "PA" appears, then release. This starts pairing mode.
- The thermostat counts down (e.g., 180s).
- A globe icon ? will appear on the LCD.
- When the blue LED on the receiver lights up, the device is correctly added and connected to the Internet.
Pairing Process with the Receiver
PLEASE NOTE! THERMOSTAT IS ALREADY PAIRED WITH THE RECEIVER!
- To re-pair the receiver and thermostat, disconnect the receiver from power. Ensure its switches are ON and AUTO. Reconnect power.
- Quickly move the left switch to OFF and back to ON. The orange LED will blink, confirming pairing mode.
- Press and hold the - & + buttons on the thermostat for approximately 5 seconds until "SY" appears, then release.
- The thermostat sends a signal to find the receiver, starting a countdown (e.g., 300 seconds).
- When the orange LED stops blinking, devices are paired.
- The thermostat displays "End" and the main screen with the "((❤))" icon.
Troubleshooting Pairing
PLEASE NOTE! If devices remain unpaired after 10 minutes (no antenna icon ?, receiver unresponsive), repeat the pairing process, considering distances, obstacles, and interference.
Installer Settings ⚙️
To enter installer parameters, press and hold the SET button (indicated by ✓ or SET symbol) for 3 seconds. Use the − or + buttons to navigate parameters and ✓ (or SET) to enter/confirm.
| Pxx | Function | Description | Default Value |
|---|---|---|---|
| P01 | Heating/Cooling Selection | Heating / Cooling | Heating |
| P02 | Control algorithm | TPI UFH (Underfloor Heating), TPI RAD (Radiators), TPI ELE (Electrical Heating), Hysteresis (SPAN ±0.2°C to ±2.0°C) | TPI RAD (HIS 0.8) |
| P03 | Offset temperature | -3.5°C to +3.5°C (corrects displayed temperature) | 0°C |
| P04 | Relay type | NO (Normally Open) / NC (Normally Closed) | NO |
| P05 | Minimum setpoint | Minimum heating/cooling temperature that can be set (5°C - 20°C) | 5°C |
| P06 | Maximum setpoint | Maximum heating/cooling temperature that can be set (20.5°C - 35°C) | 35°C |
| P07 | PIN Code | NO (Function disabled) / YES (Function enabled) | NO |
| P08 | PIN Code value | User PIN (000-xxx) | 000 |
| P09 | Require PIN | NO (Function disabled) / YES (Function enabled, requires PIN to unlock keys) | NO |
Factory Reset ?
To reset the thermostat to factory settings, hold down the − and + buttons until the "FA" message appears. Release the keys. The thermostat will restart with default factory settings and display the home screen. The device will be removed from the app and needs to be added again. Note: After reset, devices remain paired.
ENGO Controls - Heating control
