WATTS IOM-T-564 tekmar Invita WiFi Thermostat Instruction Manual

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Installation Manual  

IOM-T-564  

Installation, Operation and Maintenance  

Invita^® WiFi Thermostat  

Wall Plate  

HVAC  

Invita^®  

Interface Module  

WiFi Thermostat  

Compatible With  

• Conventional systems:  

2-stage heating, 2-stage cooling, fan and 2 accessories  

Works with the  

Watts^® Home Mobile App  

• Heat pump systems:  

4-stage heating, 2-stage cooling, fan,reversing valve  

and 1 accessory  

• Supports dual fuel systems  

• Accessory options:  

Humidifier, dehumidifier, HRV/ERV ventilator, heat pump loop valve  

!

WARNING  

Please read carefully before proceeding with  

installation. Your failure to follow any attached  

instructions or operating parameters may lead to the  

product’s failure.  

Keep this Manual for future reference.  

VIEW FULL SCREEN PDF MANUAL

General	Details
Name	WATTS IOM-T-564 tekmar Invita WiFi Thermostat Instruction Manual
Make	WATTS
Language	English
Filetype	PDF (Download)
File size	0.66 MB

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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• WATTS

WATTS IOM-T-564 tekmar Invita WiFi Thermostat Instruction Manual Overview

Summary of Contents

• Page 1: Installation manual for the Invita WiFi thermostat includes installation, operation, and maintenance instructions. The thermostat is compatible with conventional systems, supporting 2-stage heating, 2-stage cooling, fan, and 2 accessories. It also works with heat pump systems, accommodating 4-stage heating, 2-stage cooling, fan, reversing valve, and 1 accessory. The device supports dual fuel systems and offers accessory options such as humidifiers, dehumidifiers, HRV/ERV ventilators, and heat pump loop valves. A warning emphasizes the importance of reading the instructions carefully before installation to avoid product failure. Users are advised to keep the manual for future reference.
• Page 2: Important safety information Installation Preparation Equipment connections Wiring the HVAC interface module 1-stage heat and 1-stage cooling with fan Up to 2-stage furnace and 2-stage air conditioner Dehumidification using a DX coil Humidifier HRV/ERV ventilator
• Page 3: Important safety information It is your responsibility to ensure that this thermostat is safely installed according to all applicable codes and standards. This is a safety-alert symbol. When you see this symbol alone or with a signal word on your equipment or in this manual, be alert to the potential for death or serious personal injury. Improper installation and operation of this control could result in damage to the equipment and possibly even personal injury or death. This control is not intended for use as a primary limit control. Do not attempt to service the thermostat. There are no user serviceable parts inside the thermostat. Read manual and all product labels before using the equipment. Do not use unless you know the safe and proper operation of this equipment. Keep this manual available for easy access by all users.
• Page 4: Installation Preparation Tools required include a tekmar or jeweler screwdriver, Phillips head screwdriver, wire stripper, drill for wall anchor, and a 3/16 drill bit. Materials required include 18 AWG LVT solid wire for low voltage connections. Ensure power to connecting equipment is off to prevent personal injury or death. Local codes may require the thermostat to be installed or connected by an electrician. Thermostat location considerations include keeping it away from electrical interference, placing it on an interior wall, and ensuring it is approximately 5 feet off the finished floor. Avoid drafts, direct sunlight, or other factors that could cause inaccurate temperature readings. The maximum length of wire for the installation is 500 feet. When removing the old thermostat, identify the R & C wires for use with the new thermostat. Additional wires should be secured to prevent contact with the circuit board or terminals.
• Page 5: Mount Invita base to wall. Attach the thermostat to back plate. Remove the back plate from the thermostat. Align the notches at the top of the base plate with the holes on the thermostat. Secure the Invita thermostat back plate to an electrical box or drywall. Locate the HVAC Interface Module to connect to the existing wire from the thermostat. Secure the HVAC Interface Module to the wall or HVAC equipment. Wiring to the module enters from openings on the sides or back. If the wall has damage, place the wall plate trim behind the back plate. Connect the wires from the old thermostat to the terminals on the Invita WiFi Thermostat.
• Page 6: Equipment connections illustrate various devices linked to the HVAC interface module. Conventional systems support up to 2-stage heating, 2-stage cooling, fan, and 2 accessories. Heat pump and dual fuel systems accommodate up to 4-stage heating, 2-stage cooling, fan, reversing valve, and 1 accessory. Accessory options include humidifier, dehumidifier, and HRV/ERV ventilator. Optional outdoor sensor is available. The HVAC interface module connects to electric coil, Invita WiFi thermostat, Watts FloodSafe water detector, air conditioner shutoff, heat pump, furnace, and hot water tank.
• Page 7: Wiring the HVAC Interface Module Ensure power to connecting equipment is off. To prevent the risk of personal injury and/or death, make sure power is not applied to the thermostat or HVAC Interface Module until they are fully installed and ready for configuration. The HVAC Interface Module includes three relay power jumper connectors. These are used to provide power between terminals when necessary. Set Jumper J1 to On to connect power R to the Rc terminal. Set Jumper J2 to On to connect power R to the Rh2 wiring terminal. Set Jumper J3 to On connects power R to the Rh1 wiring terminal. Set the jumper to off to disconnect the power from Rh1, Rh2, or Rc respectively. 1-Stage Heat and 1-Stage Cooling with Fan Essential Settings: J1 = On, J2 = Off, J3 = On Heating Type = Conventional Equipment = 1 Heat/1 Cool Radiant Floor Heating = No
• Page 8: Up to 2-Stage Furnace and 2-Stage Air Conditioner Essential settings include heating type and equipment configuration. Heating type is set to conventional for both systems. Equipment configuration is 2 heat/2 cool. Radiant floor heating is not applicable for the furnace and air conditioner setup. Jumpers J1, J2, and J3 are set to on for the furnace and air conditioner. Up to 2-Stage Hydronic Boiler and 2-Stage Air Conditioner Essential settings for the hydronic boiler include heating type and equipment configuration. Radiant floor heating is applicable for the hydronic boiler and air conditioner setup. Jumpers J1 is off, while J2 and J3 are on for the hydronic boiler and air conditioner.
• Page 9: Up to 2-stage heat pump with auxiliary heat. The thermostat operates high cost electric resistance heat when the heat pump is unable to meet the building heating load. Heating type is heat pump. Equipment configuration is 2 heat pump/1 auxiliary. Up to 2-stage heat pump with 2-stage dual fuel. The thermostat operates the heat pump when the outdoor air temperature is above the balance point setting and switches to the furnace when below. Equipment configuration is 2 heat pump/2 auxiliary.
• Page 10: Dehumidification using a DX coil is managed by the thermostat, which operates the cooling system and runs the system fan at low speed to dehumidify the air. The thermostat also operates a humidifier to increase relative humidity. The Heat Recovery Ventilator (HRV) or Energy Recovery Ventilator (ERV) improves indoor air quality and recovers heat from exhaust air. Installing an outdoor sensor provides more accurate outdoor temperature readings compared to using weather information from the Internet. The outdoor temperature is displayed on the home screen. The outdoor sensor is used to enable heat pump dual fuel switchover, warm weather shutdown, and cold weather shutdown. Essential settings for the dehumidifier include accessory relay 1 or 2 set to dehumidifier and dehumidifier type set to DX coil. Essential settings for the humidifier include accessory relay 1 or 2 set to humidifier. Essential settings for ventilation include accessory relay 1 set to HRV/ERV ventilator.
• Page 11: Room sensor An optional room sensor can be installed for better temperature and humidity measurement. The 086 mounts flush to a wall, blending in with the room decor. Remotely measure the temperature and relative humidity. The Invita WiFi Thermostat allows disabling the internal sensor to use the external sensor instead. FloodSafe water detector shutoff The Watts FloodSafe Water Detector Shutoff LFWDS prevents catastrophic water damage from a water heater leak. The thermostat provides an email notification if the FloodSafe Water Detector Shutoff detects water and shuts off the supply line. Startup Restore power to the connected equipment to display the home screen.
• Page 12: Home screen displays only the time and temperature after 60 seconds of inactivity. Swipe to view current time, weather, outdoor temperature, floor temperature, and humidity. Equipment operation includes humidifier, heat, cool, and fan settings. Change operating mode through the settings menu. Temperature adjustment options include heat to, cool to, and auto heat-cool. Hold overrides the programmed schedule until the specified time. 'Save to schedule' applies the new temperature to the current schedule event. Symbols indicate the status of the dehumidifier, fan, and humidifier. The info button provides a description of the setting.
• Page 13: User settings allow you to manage energy use effectively. The Away setting saves energy when the building is unoccupied. Selecting the Away setting on a thermostat or mobile app affects all linked devices. The Away temperature can be adjusted in the Setup / Temps menu. The schedule feature allows you to set specific temperatures for different times of the day. Early Start anticipates heating or cooling needs and begins adjustments early. You can create a new schedule to customize temperature settings. The schedule can be set to On or Off to follow specific temperature changes. You can select skip if you don’t want a temperature change during a scheduled time. Set specific heating and cooling temperatures for different times throughout the day.
• Page 14: Temperature units can be set to °F or °C, with a default of °F. Energy use can be viewed in daily or monthly hours of operation. Daily usage displays the run time for heating and cooling for each day of the week. Brightness active can be adjusted between 30 to 100%, with a default of 100%. Brightness inactive can be set from off to 100%, with a default of 50%. Background color can be selected from various options. Language selection includes English, Español, and Français. Screen clean locks the screen for 10 seconds to allow for cleaning. Inactive time display can be set to show or hide the time when the display is inactive. Inactive humidity and outdoor displays can be configured to show or hide information when the display is inactive.
• Page 15: When connected to the Internet, the time can be set automatically. Incorrectly setting the time and date manually may prevent the thermostat from communicating to the mobile app. Automatic time source is recommended when using an Internet connection. The time and date can be manually set by highlighting a field and then using the buttons. Select the time format. If Internet is available, the time source can be either automatically or manually set. Select the local time zone. The fan is normally off when set to auto but turns on when needed for the heating or cooling equipment. When a programmable schedule is used, there is a fan setting for each time period. Setup fan schedule.
• Page 16: Before using the WiFi features of this product, you must accept the Terms of Use. The thermostat includes a step by step tutorial to setup the WiFi connection. You must select a network from the list. If you do not accept these terms, this product can still be used without WiFi features. Turn on WiFi. Enter wireless network name. It must support WPA2 security encryption. Enter password. Enter ZIP or postal code. This determines your location for weather information. Select if the time is set automatically from the Internet or manually.
• Page 17: WiFi and Connectivity Troubleshooting Power the thermostat off and then power the router off, wait 10 seconds, power on, and wait for the Internet status to be on before powering the thermostat on. The router must provide a 2.4 GHz signal as the thermostat is not compatible with 5 GHz networks. The router should use WPA2-Personal security and have DHCP enabled with enough available addresses for all Internet devices. Ensure the router firewall is not blocking outbound UDP or TCP ports: 53, 123, 443, 8883. The WiFi signal must measure between 0 and -69 dB for a reliable connection to the Watts cloud. A WiFi extender is recommended if the WiFi signal is between -70 to -100 dB. If unable to connect to the WiFi network, try creating a WiFi Hotspot on your mobile device. The thermostat connection status will show IoT Connected when connected to the Watts Cloud and ready to be registered to the app. Double check that you are using the correct WiFi network and password, which is limited to 32 characters. The thermostat supports WPA2-Personal password security.
• Page 18: Installer settings include a setup menu with seven sub-menus that determine thermostat operation. The access level setting in the toolbox menu affects available user settings. User access level restricts access in the setup menu. The setup menu includes options for temperature, sensors, relays, alerts, humidity, and vent. Error messages are displayed in the error setting. The current status of warm weather shut down, cold weather shut down, and relays is shown in the status setting. The software version can be displayed. Settings can be returned to factory defaults. Recalibration of the touchscreen is necessary after loading factory defaults. Press back to return to the main settings menu.
• Page 19: Setup Select the floor temperature while in the wake schedule. Select the floor temperature while in the leave schedule. Select the floor temperature while in the return schedule. Select the floor temperature while in the sleep schedule. Select the floor temperature while in away. Select the maximum floor temperature. This protects the floor covering from overheating. Select the heating temperature when away. Select the minimum heating temperature limit. Select the maximum heating temperature limit. Select the outdoor temperature at which the heating is shut off.
• Page 20: Setup - Sensors Select the type of sensor connected to S1 and Com wiring terminals. Select the type of sensor connected to S2 and Com wiring terminals. Select the type of sensor connected to S3 and Com wiring terminals. Select if the internal room temperature sensor is on or off. Only available when Sensor 1, 2 or 3 is set to read a room or floor sensor. Select if the internal humidity sensor is on or off. Only available when Sensor 3 is set to read an external humidity sensor. Manual offset correction of the room temperature measurement. Manual offset correction of the floor temperature measurement. Manual offset correction of the relative humidity measurement.
• Page 21: Setup - Alerts Room hot warning sends an email notification if the room exceeds this temperature. Room cold warning sends an email notification if the room falls below this temperature. Low humidity warning sends an email notification if the humidity falls below this setting. High humidity warning sends an email notification if the humidity rises above this setting. Auxiliary heat run time warning sends an email notification if the auxiliary heat runs continuously for longer than this setting. Air filter change warning sends an email notification to change the air filter when the fan exceeds this run time. UV lamp change warning sends an email notification to change the UV disinfectant lamp when it exceeds this run time.
• Page 22: Setup - Relays Select between conventional heating or heat pump. Select the number of stages of the heating and cooling equipment. Select if the first stage W1 heats a radiant floor. Select when the first stage heating turns on. Select when the second stage heating turns on. Select the time delay when the second stage heating turns on. Select when the third stage heating turns on. Select the time delay when the third stage heating turns on. Select when the fourth stage heating turns on.
• Page 23: Setup - Relays (2 of 3) Select the time delay when the fourth stage heating turns on. This setting is available when a heat pump is selected and there are at least 4 heating stages. Select when the first stage cooling turns on. Turn on point is the Cool To setting plus the differential. Select when the second stage cooling turns on. This setting is available when there are two cooling stages. Select the time delay when the second stage cooling turns on. This setting is available when there are two cooling stages. Select the minimum time the cooling compressor must run before shutting off. Select the minimum time the cooling compressor must be off before turning back on. Select dual fuel on if the heat pump has 100% backup using a furnace or hydronic fan coil. Select the type of equipment that the accessory relay operates.
• Page 24: Setup - Relays (3 of 3) Heat pump reversing valve: Select O for heat pumps designed for normally heating operation. Select B for heat pumps designed for normally cooling operation. Fan relay: Select which relays require fan operation. Combinations with W1 are not available when Radiant Floor Heating is set to yes. Fan with HRV/ERV: Select if the HVAC system fan should turn on together with the HRV or ERV ventilation fan. Humidifier type: Select the type of humidifier. This setting is available when Accessory 1 or 2 is set to Humidifier. Window protection: Select if the relative humidity setpoint should automatically adjust with outdoor temperature to prevent frost on windows. Window quality: The window quality determines the amount that the relative humidity setting is lowered during cold outdoor weather. Dehumidifier type: Select the type of dehumidifier. This setting is available when Accessory 1 or 2 is set to Dehumidifier. Heat-cool time interlock: When operating in Mode Auto, select the amount of time to wait between switching from heating to cooling and vice versa. Warm floor during cooling: Select whether the floor should be heated when in cooling mode. This setting is only available when Radiant Floor Heating is set to yes.
• Page 25: Set the lowest relative humidity level. Set the highest relative humidity level. Range is 10 to 80%. Default is 40%. Humidify to: 40%. Range is 20 to 90%. Default is 60%. Available when Accessory 1 or 2 operates a humidifier. Dehumidify to: 60%. Available when Accessory 1 or 2 operates a dehumidifier.
• Page 26: Setup - HRV / ERV ventilation When a programmable schedule is used, there is a ventilation setting for each time period. The ventilation fan runs for the set amount of time per hour.
• Page 27: Sequence of operation Heating and cooling operation The heating setpoint can be set from 40 to 95°F (4.5 to 35°C). The Heat On symbol is shown on the display when the thermostat is heating. The cooling setpoint can be set from 45 to 100°F (7.0 to 38.0°C). Heating for freeze protection is provided whenever the air or floor temperature falls below 40°F (4.5°C), regardless of operating mode. The Cool On symbol is shown on the display when the thermostat is cooling. The thermostat supports two heating system types: conventional or heat pump. A conventional heating system includes furnaces, air conditioners, hydronic heating systems, and electric heating. A heat pump system may include additional heat sources as backup. The thermostat supports up to four heating stages for heat pump systems.
• Page 28: When radiant floor heating is installed, it is always the first stage of heating, followed by the heat pump, and lastly any backup heating. Emergency Heat mode shuts off the heat pump Y1 and Y2 relays and operates the auxiliary heat, which is usually more expensive. Each heating stage has an adjustable differential and time delay setting to determine when the stage turns on. Radiant floor heating is operated differently than other heating types due to the large time delays to heat and cool the slab. The W1 relay operates using Pulse Width Modulation for radiant floor heating. The thermostat can measure room temperature between -46 to 212°F (-43 to 100°C). Room temperature can be measured using a combination of the built-in and auxiliary sensors. The heating stages shut off at specific temperature differentials. Accessory options include humidifier, dehumidifier, and HRV/ERV ventilator. The O relay remains closed during heating operation, while the B relay remains closed during cooling operation.
• Page 29: Floor sensor for radiant floor heating The thermostat can measure floor temperature between -46 to 212°F (-43 to 100°C). Floor minimum and maximum settings are available when a floor sensor is connected. The floor heating setpoint is adjustable from 40 to 95°F (4.5 to 35°C). A floor minimum can prevent a fast drop in temperature caused by receding solar exposure. A floor maximum is recommended for rooms with hardwood floors. Setting floor minimum and maximum temperatures enhances comfort while protecting floor coverings. If there are multiple floor temperature sensors, the temperature is averaged. It’s possible to heat a radiant floor while the cooling system is operating. The heating system can automatically shut off based on outdoor temperature and the WWSD setting.
• Page 30: HRV / ERV ventilator operation is essential for maintaining indoor air quality. The thermostat can operate a heat recovery ventilator (HRV) or energy recovery ventilator (ERV) on a timer. The Accessory 1 relay operates the ventilator fan at low speed. The thermostat supports water-to-air heat pump systems. It absorbs or rejects heat to a hydronic building loop. When the heat pump compressor relay is activated, the Accessory 1 relay closes to open a hydronic zone valve. This allows variable speed pumps on the hydronic loop to operate at lower speeds. This operation saves electrical energy.
• Page 31: Error messages will trigger an email notification to the registered mobile account owner. Communication error occurs when the display module and HVAC Interface Module lose connection and clears automatically once re-established. Memory error indicates corrupted thermostat memory settings, which can be cleared by loading factory defaults. Internal room sensor fault prevents the thermostat from reading the internal room temperature sensor, stopping operation unless certain conditions are met. Internal humidity sensor fault stops the thermostat from controlling humidity unless an external sensor is installed. Sensor 1 fault indicates an issue with the sensor wired to S1 and Com, halting normal operation under specific conditions. Sensor 2 fault indicates an issue with the sensor wired to S2 and Com, halting normal operation under specific conditions. Sensor 3 fault indicates an issue with the sensor wired to S3 and Com, halting normal operation under specific conditions. Errors related to sensors cannot be field repaired and require contacting a sales representative for warranty or repair procedures. Auxiliary sensor wires should be checked for short circuits according to the installation manual, and replacement may be necessary.
• Page 32: Description The thermostat has a WiFi connection to the router but is unable to communicate to the Internet. Steps to clear the error include: power off and on the router, power off and on the thermostat. A water leak has been detected and the water line has been shut off. The warning will automatically clear once the water leak detector has been reset. The room temperature is above the Room Hot Warning setting in the Alerts menu. The warning will automatically clear once the room temperature falls below the setting. The room temperature is below the Room Cold Warning setting in the Alerts menu. The warning will automatically clear once the room temperature rises above the setting. The relative humidity is below the Low Humidity Warning setting in the Alerts menu. The warning will automatically clear once the relative humidity rises above the setting. The relative humidity is above the High Humidity Warning setting in the Alerts menu. The warning will automatically clear once the relative humidity falls below the setting. The auxiliary heat has been operating continuously longer than the Aux Heat Run Time Warning setting in the Alerts menu. The error clears when the auxiliary heat turns off. The fan run time has exceeded the Change Air Filter setting in the Alerts menu and requires replacement. To clear the warning, press the Air Filter Replaced button. The UV lamp run time has exceeded the UV Lamp setting in the Alerts menu and requires replacement. To clear the warning, press the UV Lamp Replaced button.
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• Page 34: Limited Warranty The liability of tekmar under this warranty is limited. The tekmar Limited Warranty is a manufacturer’s pass-through warranty. Each tekmar product is warranted against defects in workmanship and materials if installed and used in compliance with tekmar’s instructions. The pass-through warranty period is twenty-four months from the production date or twelve months from the documented date of installation. Tekmar's liability under the Limited Warranty is limited to repair, exchange, or credit for the defective product. The pass-through Limited Warranty applies only to defective products returned during the warranty period. This Limited Warranty does not cover costs for removal, transport, or reinstallation of the defective product. Purchaser is responsible for any representations or warranties made to its customers that differ from the tekmar Limited Warranty. The warranty does not apply if the product has been damaged by negligence, accident, or unauthorized modifications. This warranty excludes all other warranties, express or implied, allowed by governing law. Product Warranty Return Procedure All products believed to have defects must be returned with a written description of the defect. Tekmar’s obligation is to provide contact information for the appropriate representative for warranty claims.