UNILUX TA640FCW-ULX HVAC Thermostat User Manual

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Unilux HVAC  

Thermostat  

This manual covers the installation and  

Installation and User Manual | 1  

operation of the Unilux HVAC Thermostat  

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General	Details
Name	UNILUX TA640FCW-ULX HVAC Thermostat User Manual
Make	unilux
Language	English
Filetype	PDF (Download)
File size	0.51 MB

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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• unilux

UNILUX TA640FCW-ULX HVAC Thermostat User Manual Overview

Summary of Contents

• Page 1: This manual covers the installation and operation of the Unilux HVAC thermostat.
• Page 2: This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: This device may not cause interference. This device must accept any interference, including interference that may cause undesired operation of the device. This Class B digital apparatus complies with Canadian ICES-003. This equipment complies with Canada radiation exposure limits set forth for uncontrolled environments. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Product Name: TA640FCW-ULX Registration Number: 0033470600 FCC ID: 2BAPFGEN0UNITA
• Page 3: Caution: The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. If this equipment does cause harmful interference to radio or television reception, the user is encouraged to try to correct the interference by reorienting or relocating the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. This equipment complies with FCC’s RF radiation exposure limits set forth for an uncontrolled environment. Installers must ensure that 20cm separation distance will be maintained between the device and users.
• Page 4: For HVAC experts: General information Compatibility & safety standards What's in the box Temperature measurement Technical data Resolving warning symbols Operating mode functionality Installation steps Initial set up instructions Pairing your mobile device For thermostat owners: Thermostat overview Advanced settings
• Page 5: Compatibility & safety standards The Unilux HVAC thermostat is compatible with all Unilux fan coil products. Included in this manual are installation instructions for various systems. This thermostat adheres to specific safety standards. What's in the box Thermostat (top & bottom housing) Screws x 2 You will also need a screwdriver and a bubble level. Drywall anchors x 2 QR code to Unilux thermostat manual
• Page 6: Temperature measurement has a measurable range of 0 – 40 °C / 32 – 99 °F and a controllable range of 5 – 35 °C / 40 – 95 °F. The resolution is 0.5°C / 1°F. For a 2-pipe system, a remote water temperature sensor must be present when in 2H or 2P mode. If the sensor is not connected or shorted, the thermostat will display E1 and turn off heat/cool outputs. When the temperature is below 0°C / 32°F, the display shows LO, and when above 40°C / 99°F, it shows HI. The power supply is 24VAC ± 20%, with a relay contact voltage of 24VAC 50/60 Hz and a maximum current of 1A. The sensing element is a 10K NTC Type 2 thermistor. The operating humidity is 5 – 95% R.H. non-condensing. The drain pan indicator activates when a +24VAC signal is triggered at the DP terminal, turning the fan off and closing all water valves. The defrost indicator activates when the room temperature is below 5 °C / 41 °F or the remote water temperature sensor is below 1 °C / 34 °F. In a 2-pipe system, the valve output should be on to keep water flowing.
• Page 7: Operating mode functionality There are 4 operating modes: Off mode: Heat/Cool/Fan outputs are always OFF. Heat mode: Heat turns ON when room temperature is lower than setting temperature. Heating protocol for all Unilux fan coil models without auxiliary heat includes specific setpoints and outputs. Heating protocol for Unilux fan coil units with auxiliary heat includes specific setpoints and outputs. When call for heat and remote temperature is below 29.5°C/85°F, the hot water valve does not open, and auxiliary heat turns ON. There will be a 5 minute delay in the electric heater activating to allow the system to purge. When call for heat and remote temperature is higher than or equal to 29.5°C/85°F, auxiliary heat does not turn on, and the hot water valve opens.
• Page 8: Cool mode activates when the room temperature exceeds the set temperature. The cooling protocol for Unilux fan coil units includes specific setpoints and output controls. In auto mode, the output switches on or off based on both heat and cool setpoints, which must have a 2°C / 4°F dead band. There is a minimum 4-minute switching off time when transitioning between heat and cool modes. The heat icon flashes on the thermostat in heat mode, while the cool icon flashes in cool mode. For a 2-pipe fan coil system, a remote water temperature sensor is required. Heat control is activated when the remote temperature exceeds 29.5°C / 85°F, and cool control is activated when it drops below 18.5°C / 65°F. In a 4-pipe fan coil system, control switches to heat when the room temperature is below the heat setpoint and to cool when it is above the cool setpoint. The auto protocol for Unilux fan coil models without auxiliary heat includes specific outputs for heat and cool setpoints. The document outlines the necessary spans for temperature control in both modes.
• Page 9: Auto protocol for Unilux fan coil units with auxiliary heat includes settings for heat setpoint, cool setpoint, and deadband. Auxiliary heat activation has specific turn-on and turn-off procedures. There is a 5-minute delay in the electric heater activating to allow the system to purge. Fan speed can be adjusted directly at the home screen. Pressing the [FAN] button allows selection of fan speed: Low, Med, High, or Auto. In Auto Fan Speed mode, if there is no heat or cool demand, the fan speed remains at Low. Fan output is influenced by the difference between room temperature and setting temperature. There is a minimum 4-minute delay when switching between fan speeds in Auto mode. Setpoints for fan speed include High, Med, Low, and Off. Temperature spans are noted as 1.5°C / 3°F for adjustments.
• Page 10: The Unilux Thermostat must be installed by a trained technician. Failure to follow these instructions carefully may result in product damage. Caution: Electrical hazard. Disconnect power before starting installation. If installing thermostat in standard interior wall, start with step one on this page. When installing direct to wall, gather materials and tools. You will need screws and bolts, a screwdriver, and a bubble level. Mount thermostat to wall by detaching the bottom housing and wiring according to diagrams. Secure the bottom housing to the wall with provided screws. Reattach the top housing to the bottom.
• Page 11: When installing in a North American electrical box, check the compatibility of your electrical box. Gather materials and tools needed for installation, including a steel installation plate, plastic interface plate, screws and bolts, screwdriver, and bubble level. Turn off the power supply to the electrical box before starting the installation. Remove the cover plate from the electrical box and position the steel installation plate, ensuring the holes align. Secure the steel installation plate to the electrical box using the provided screws and bolts, and check that it is level. Detach the bottom housing from the thermostat and position the plastic interface plate onto the steel installation plate. Wire the thermostat according to the provided diagrams, passing the wires through the necessary components. Align the bottom housing with the mounting holes on the steel installation plate and secure it using the provided hardware. Reattach the top housing to the bottom housing and turn the power supply back on.
• Page 12: Wiring instructions for fan coils provide essential information for installation. The 2-pipe standard includes symbols and terminal designations for connections. Key terminals include R for 24VAC hot, C for 24VAC common, and W for heat/cool valve relay. Fan relays are designated as low, medium, and high. The 4-pipe standard also outlines symbols and terminal connections. It includes heat and cool valve relays along with the same fan relay designations. The 2-pipe with auxiliary heating specifies additional connections for an auxiliary heater relay. Remote 10kΩ water temperature sensors are noted in the wiring instructions. Drain pan and freezestat are included in the terminal designations across all configurations. Understanding these wiring instructions is crucial for proper installation and operation of fan coils.
• Page 13: 2-pipe with aquastat symbols and terminals are outlined. 24VAC Hot and 24VAC Common connections are specified. Connections for heat relay and cool relay of aquastat are detailed. Fan relay connections include low, medium, and high settings. Drain pan and freezestat are mentioned as part of the system. 2-pipe with auxiliary heating and aquastat symbols and terminals are also described. Connections for heat/cool of aquastat and cool valve relay are included. The same fan relay connections apply as in the previous section. The document provides essential information for installation and user guidance. Overall, the manual focuses on the electrical connections and components of the system.
• Page 14: Initial set up instructions require configuration by the installer before use. To wake up the thermostat, tap [POWER]. Press [CLOCK] to start setting the clock and date. The day of the week will flash at the top of the screen. Press [▲] / [▼] to change the day of the week and confirm with [CLOCK]. To set the hour, press [▲] / [▼] and confirm with [CLOCK]. Adjust minutes by pressing [▲] / [▼] and confirm. The default system mode is set to 0 for a 2-Pipe Standard fan coil. Hold [MENU] to enter the Advanced Settings menu to set the system mode. To set the temperature display, hold [MENU] and select either Fahrenheit or Celsius.
• Page 15: Pairing your mobile device Control your thermostat from anywhere, anytime. The Unilux Thermostat App is the easiest way to control your thermostat wherever you are. We take your privacy seriously. Easily pair your Unilux Thermostat to your mobile device following the in-app instructions. See page 21 for written instructions.
• Page 16: Thermostat overview provides essential information about the device's functions. Navigation keys allow for easy access to different settings. Mode/Menu enables quick changes between cooling and heating. The clock sets the current date and time and manages programs. Power/Fan speed/select wakes up or powers down the thermostat. Scroll keys assist in navigating through options. Wi-Fi signal indicates connection status and requires the Unilux Thermostat App for setup. Current temperature displays the temperature reading. Operating mode allows for quick changes between heat and cool. Battery backup saves settings during power outages for up to one hour.
• Page 17: Advanced settings Your thermostat is equipped with four screen layouts to choose from. Your default home screen is option 0. To select a new layout, hold [MENU] to enter the Advanced Settings menu. Press [▲] / [▼] to cycle through your three layout options. Your thermostat screen will automatically enter sleep mode to conserve energy after 20 seconds. You can adjust the sleep countdown anywhere between 0-120 seconds. The temperature unit of your thermostat should be set to your region's standard measurement. By default, your thermostat uses a 12-hour clock. You can set your thermostat to a 24-hour clock instead. The system mode refers to the type of fan coil system your thermostat is connected to.
• Page 18: Temperature offset allows you to adjust the thermostat's reading based on the temperature of the surrounding area. You can offset your thermostat by +/- 5 °C or 10 °F. Your thermostat can be programmed with up to four scheduled temperatures each day. There are three types of programs available: 7-Day Program, 1-Day Program, and 5+1+1 Day Program. To offset your thermostat temperature, hold [MENU] to enter the Advanced Settings menu and navigate to P05. The default program is set to a 7-Day Program. The switching differential in heat mode refers to the delay in call for heating, recommended at a default of 2 °C (4 °F). You can adjust the switching differential in heat mode between 2-4 °C (4-8 °F). The switching differential in cool mode also refers to the delay in call for cooling, with a recommended default of 2 °C (4 °F). You can adjust the switching differential in cool mode between 2-4 °C (4-8 °F).
• Page 19: Hold [CLOCK] until your thermostat enters program mode. Press [▲] / [▼] to navigate to the desired day. Set Schedule 1 by pressing [▲] / [▼] to select the hour you want the schedule to start. Press [CLOCK] to confirm the day. Press [▲] / [▼] to select the minute you want the schedule to start. Press [▲] / [▼] to select the temperature you want at the chosen time. Schedule 1 is now set, and you are ready to repeat these steps to set Schedules 2-4. After you have set all four schedules, you will be returned to the home screen. You will be prompted to repeat this process for the next day(s).
• Page 20: You may override your scheduled program at any time, either temporarily or permanently. Your thermostat can display either the temperature of your room or the humidity levels. To set a temporary hold on your program, press [▲] / [▼] to override the temperature setpoint. The Program icon on your thermostat will disappear during a temporary hold. Your temporary hold will remain until it is time for your next scheduled program. Your thermostat operates in four standard modes: Heat, Cool, Auto, and Off. The permanent hold icon will appear on your screen when a permanent hold is set. The Auto mode of your thermostat works according to both a set heating and cooling temperature. You can set a Vacation Hold to pause your programs for up to 99 days. Your heating changeover temperature must be at least 2 °C (4 °F) away from your cooling changeover temperature.
• Page 21: Activate pairing mode by pressing the [UP] or [DOWN] button until the on-screen text says “PAR APP.” The auto mode of your thermostat works according to both a set heating and cooling temperature. Your cooling changeover temperature is set to 23 °C (73 °F) by default but can range between 20 - 40 °C (68-104 °F). To find the device ID, access Advanced Settings and cycle through the pages until you reach a page titled “ADR.” Input the five-digit alphanumeric code displayed as your device ID with your Wi-Fi info to connect to your thermostat. Ensure your thermostat is in auto mode to adjust your cooling changeover temperature. Hold [MENU] to enter the Advanced Settings menu and continue pressing [MENU] until reaching P17. Your cooling changeover temperature must be at least 2 °C (4 °F) away from your heating changeover temperature. If your thermostat does not have a page titled “P21,” it is already in pairing mode. To perform a full factory reset, turn the breaker switch connected to your fan coil off and back on.
• Page 22: Warning symbols indicate important safety information. Anti-freeze mode activates to protect the unit in low temperatures. Drain pan mode is triggered when the drain pan is close to overflowing. The defrost indicator activates to conserve operating temperatures. The water droplet indicator signals that the unit will stop operating until serviced. No action is required for certain indicators. Error code 1 appears when the water temperature sensor is not connected or has shorted. The thermostat will show E1 when error code 1 is triggered. Heat and cool outputs will turn off in case of error code 1. Contact your HVAC service provider for assistance with error codes.
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