Instruction Manual for WATTS models including: 031564, IOM-T-564 tekmar Invita WiFi Thermostat, tekmar Invita WiFi Thermostat, Invita WiFi Thermostat, WiFi Thermostat, Thermostat

Invita WiFi Thermostat


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031564-install
InstallationIOMM-Ta-5n64ual
Installation, Operation and Maintenance
Invita® WiFi Thermostat

HVAC Interface Module

Invita® WiFi Thermostat

Wall Plate

Compatible With

· Conventional systems: 2-stage heating, 2-stage cooling, fan and 2 accessories

· Heat pump systems: 4-stage heating, 2-stage cooling, fan,reversing valve and 1 accessory

Works with the Watts® Home Mobile App

· 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.

Table of Contents
Important Safety Information  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .3 Installation  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .4
Preparation  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .4 Equipment Connections  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .6 Wiring the HVAC Interface Module .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .7
1-Stage Heat and 1-Stage Cooling with Fan  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .7 Up to 2-Stage Furnace and 2-Stage Air Conditioner  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .8 Up to 2-Stage Hydronic Boiler and 2-Stage Air Conditioner  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .8 Up to 2-Stage Heat Pump with Auxiliary Heat  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .9 Up to 2-Stage Heat Pump with 2-Stage Dual Fuel  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .9 Dehumidification using a DX Coil .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .10 Humidifier  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .10 HRV/ERV Ventilator .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .10 Outdoor Sensor  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .10 Room Sensor  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .11 Watts® FloodSafe® Water Detector Shutoff  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .11 Startup  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .11 Home Screen  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .12 Symbols  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .12 User Settings .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .13 Away .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .13 Schedule  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .13 Display  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .14 Time  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .15 Fan  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .15 WiFi  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .16 WiFi and Connectivity Troubleshooting  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .17 Installer Settings  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .18 Setup  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .18 Setup - Toolbox  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .18 Setup - Temp  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .19 Setup - Sensors  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .20 Setup - Alerts  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .21 Setup - Relays  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 22­24 Setup - Humidity .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .25 Setup - HRV / ERV Ventilation .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .26 Sequence of Operation  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .27 Heating and Cooling Operation  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 27-29 Relative Humidity Operation  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .30 HRV / ERV Ventilator Operation .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .31 Heat Pump Loop Valve Operation  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .31 Error Messages  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 32­33 Technical Data  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .35 Limited Warranty  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .36
2

Important Safety Information

It is your responsibility to ensure that this thermostat is safely installed according to all applicable codes and standards . tekmar® is not responsible for damages resulting from improper installation and/ or maintenance .

This is a safety-alert symbol . The safety alert symbol is shown alone or used with a signal word (DANGER, WARNING, or CAUTION), a pictorial and/or a safety message to identify hazards . 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 .

· It is the installer's responsibility to ensure that this control is safely installed according to all applicable codes and standards .
· 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 . Other controls that are intended and certified as safety limits must be placed into the control circuit .

This pictorial alerts you to electricity, electrocution, and shock hazards .

NOTICE
Do not attempt to service the thermostat . There are no user serviceable parts inside the thermostat . Attempting to do so voids the warranty .

This symbol identifies hazards which, if not avoided, could result in death or serious injury .
This symbol identifies hazards which, if not avoided, could result in minor or moderate injury .
This symbol identifies practices, actions, or failure to act which could result in property damage or damage to the equipment .
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 . Replacement manuals are available at tekmarControls .com
3

Installation Preparation

Tools Required
· tekmar or jeweler screwdriver · Phillips head screwdriver · Wire stripper

· Drill (for wall anchor) · 3/16" drill bit (for wall anchor)

Materials Required
· 18 AWG LVT Solid Wire (low voltage connections)

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 . All work must be done with power to the circuit being worked on turned off .

NOTICE
Please be aware local codes may require this thermostat to be installed or connected by an electrician .

NOTICE
Thermostat Location
Consider the following: · Interior wall . Keep dry . Avoid potential leak-
age onto the control .
· No draft, direct sun, or other cause for inaccurate temperature readings .

· Away from equipment, appliances, or other sources of electrical interference .
· Approximately 5 feet (1 .5 m) off the finished floor .
· The maximum length of wire is 500 feet (150 m) .

1. Remove the old thermostat
If more than 2 wires are present, identify the R & C wires for use when connecting the Invita WiFi Thermostat . Additional wires should be secured in a way that prevents them from touching the circuit board or terminals on the Invita after the R & C wires are connected .
4

2. Mount Invita base to wall
Remove the back plate from the thermostat .

4. Attach the thermostat to back plate
Align the 2 notches at the top of the base plate with the holes on the top of the thermostat then rotate on the hinge point down to close .

Secure the Invita thermostat back plate to a 2 x 4" electrical box with machine screws or to drywall using wood screws with wall anchors .

5. Mounting the HVAC
Interface Module
Locate the HVAC Interface Module so that it can connect to the other end of the existing wire from the thermostat . After removing the cover, secure the HVAC Interface Module to the wall, the HVAC equipment chassis or HVAC plenum using the holes at the top and bottom of the module . Wiring to the module enters from opening on the sides or the back . Refer to the diagrams on pages 6 to 11 for wiring details .

If the wall has damage extending beyond the width of the Invita WiFi Thermostat, place the wall plate trim behind the back plate .

6. Replace the Cover

3. Wiring the Invita WiFi Thermostat
Connect the 2 wires from the old thermostat to the terminals on the back of the Invita WiFi Thermostat . This connection is not polarity sensitive .

Push the HVAC Interface Module Cover towards the base . Top and bottom clips hold the cover in place .

5

Equipment Connections
This illustration shows various equipment connected to the HVAC Interface Module . Other equipment may be included in your application .
Conventional systems:
· Up to 2-stage heating, 2-stage cooling, fan and 2 accessories
Heat pump & dual fuel systems:
· Up to 4-stage heating, 2-stage cooling, fan, reversing valve and 1 accessory
Accessory options:
· Humidifier, dehumidifier, HRV/ERV ventilator
HRV/ERV Ventilator

Optional Outdoor Sensor

Humidifier Electric Coil

Air Conditioner or
Heat Pump
Furnace

W

HVAC Interface Module
Invita WiFi Thermostat
Watts FloodSafe® Water Detector
Shutoff
Hot Water Tank

6

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 . All work must be done with power to the circuit being worked on turned off .
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

Jumpers:
J1 = On J2 = Off J3 = On

Essential Settings:
Heating Type = Conventional Equipment = 1 Heat/1 Cool Radiant Floor Heating = No

7

Up to 2-Stage Furnace and 2-Stage Air Conditioner

Essential Settings:
Heating Type = Conventional Equipment = 2 Heat/2 Cool Radiant Floor Heating = No

Jumpers:
J1 = On J2 = On J3 = On

Furnace

Air Conditioner
Up to 2-Stage Hydronic Boiler and 2-Stage Air Conditioner

Essential Settings: Heating Type = Conventional Equipment = 2 Heat/2 Cool Radiant Floor Heating = Yes
Jumpers: J1 = Off J2 = On J3 = On

8

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 .

Essential Settings:
Heating Type = Heat Pump Equipment = 2 Heat Pump/1 Aux Radiant Floor Heating = No

Jumpers:
J1 = On J2 = On J3 = On

Air Handling Unit

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 .

Essential Settings:
Heating Type = Heat Pump Equipment = 2 Heat Pump/2 Aux Radiant Floor Heating = No

Jumpers:
J1 = On J2 = On J3 = On

Air Handling Unit

9

Dehumidification using a DX Coil

The thermostat operates the cooling system and runs the system fan at low speed to dehumidify the air .

Essential Settings:
Accessory Relay 1 or 2 = Dehumidifier Dehumidifier Type = DX Coil

External Jumper Wires:
R to Acc1

Air Handling Unit

Humidifier
The thermostat operates a humidifier to increase relative humidity .
Essential Settings: Accessory Relay 1 or 2 = Humidifier

Humidifier

HRV/ERV Ventilator

The Heat Recovery Ventilator (HRV) or Energy Recovery Ventilator (ERV) operates to improve indoor air quality and recovers heat from exhaust air .

Essential Settings: Accessory Relay 1 = Ventilation

HRV / ERV Ventilator

Outdoor Sensor
· Installing an outdoor sensor provides more accurate outdoor temperature readings compared to using the weather information from the Internet which may cause delays in updating weather .
· Outdoor temperature is displayed on home screen . · Used to enable heat pump dual fuel switchover, warm
weather shut down, and cold weather shut down .
10

tekmar Outdoor Sensor 070

Room Sensor

When the location of the thermostat is not ideal for accurate temperature and humidity measurement, an optional room sensor can be installed in a better location . The 086 mounts flush to a wall, blending in with the room decor .
· Remotely measure the temperature and relative humidity
· The Invita WiFi Thermostat provides the option to disable the internal temperature and relative humidity sensor, and use the external sensor instead .

tekmar Humidity & Temperature Sensor 086

FloodSafe® Water Detector Shutoff
The Watts FloodSafe Water Detector Shutoff LFWDS prevents catastrophic water damage in the event of a water heater leak . The thermostat provides an email notification in the event that the FloodSafe Water Detector Shutoff LFWDS detects a water and shuts off the supply line to the water heater .

Watts FloodSafe Water Detector Shutoff

Startup
Restore power to the connected equipment . Once energized, the Invita WiFi Thermostat will display the home screen .
11

Home Screen
After 60 seconds of inactivity, the thermostat home screen displays only the time and the temperature .

Go to schedule
Swipe to view: · Weather · Outdoor temperature · Floor temperature · Heat To setting · Cool To setting · Relative Humidity
Humidifier or Dehumidifer operation Change operating mode

Current time
Current temperature Equipment operation Heat, Cool and Fan On
Go to settings

Mode Emergency Heat
Heat Cool Auto Heat-Cool Off

Save

Cancel

`Save to schedule' applies the new temperature to the current schedule event .

Touch or to adjust temperatures

Select either Heat To or Cool To
Temperature Adjustment

Heat To
70

Cool To
75

Hold Until 5:00 PM Save to Schedule

MENU SELECTION

AWAY

SCHEDULE

DISPLAY

TIME

WIFI

SETUP

FAN
WIFI: Connected
Hold overrides the programmed schedule until the time shown

Symbols
The fan is on The humidifier is on
12

The dehumidifier is on
The info button provides a description of the setting

Ok setting change
Cancel setting change

User Settings
Away
Use the Away setting to save energy when the building is unoccupied
Operates normally Operates using the Away temperature selected in the Setup menu

Home / Away
At Home Away

· Selecting the Away setting on a thermostat or the mobile app will affect all devices linked to that location through the app .
· The Away temperature can be adjusted in the Setup / Temps menu .

Info Save

Schedule

Current group of program days .

Schedule Mon Tue Wed Thu Fri

Wake 6:00 AM 70° 75°

Leave 8:00 AM 65° 78°

Return 6:00 PM 70° 75°

Early Start anticipates the time required to heat or cool a room and starts early .

Sleep 10:00 PM 65° 78°

Early Start On

Schedule On

New Schedule

Creates a new schedule .

Set schedule start time Set heating temperature Set cooling temperature

Schedule Setup Mon Tue Wed Thu Fri
On Wake
Skip
6:00 AM
Heat to 70°
Cool to 75°

Go to the next group of program days .
Heating temperature
Cooling temperature Set to On to follow the schedule . Set to Off to use the same temperature all of the time .
Select skip if you don't want a temperature change .

13

Display

Setting
TEMPERATURE UNITS Select °F or °C .
ENERGY USE View the number of hours the heating or cooling has operated either daily or monthly .

Range °F or °C
0 to 24 (daily) 0 to 744 (monthly)

Default °F
0 hours

Daily Usage

Today Yesterday Tue Mon Sun Sat Fri

0 hrs 0 hrs 0 hrs 0 hrs 0 hrs 0 hrs 0 hrs

0 hrs 0 hrs 0 hrs 0 hrs 0 hrs 0 hrs 0 hrs

View each day's run time for both heating and cooling .

Monthly Usage

Toggle between Daily and Monthly Usage .

Setting BRIGHTNESS ACTIVE Select the brightness when touching the screen . BRIGHTNESS INACTIVE Select the brightness when not in use .
BACKGROUND Select the background color .
LANGUAGE Select the language .
SCREEN CLEAN Locks screen for 10 seconds to allow cleaning . INACTIVE TIME DISPLAY Select if the time is visible when the display is inactive . INACTIVE HUMIDITY DISPLAY Select if the humidity is visible when the display is inactive . INACTIVE OUTDOOR DISPLAY Select if the outdoor temperature is visible when the display is inactive .
14

Range
30 to 100%
Off, 30 to 100%
Light, Blue, Night, Latte, Espresso English, Español, Français
N/A
Off or On
Off or On
Off or On

Default 100% 50%
Blue
English N/A On Off Off

Time

When connected to the Internet, the time can be set automatically .

TIME & DATE

Aug 25 2019

1

30 PM

NOTICE
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 or buttons .

OPTIONS

Choose from the time options listed below .

Setting TIME FORMAT Select the time format . TIME SOURCE If Internet is available, the time source can be either automatically or manually set . TIME ZONE Select the local time zone . DAYLIGHT SAVING TIME Select the brightness when not in use .

Range 12 or 24 hour
Automatic, Manual
Hawaii, Alaska, Pacific, Mountain, Central, Eastern, Atlantic, Newfoundland
Off, On

Default 12 hour
Auto Eastern
On

Fan
Fan On Auto Follow Schedule

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 .

Fan

Wake Leave Return Sleep

On Auto
On Auto

Setup Fan Schedule
15

WiFi

NOTICE
Before using the WiFi features of this product, you must accept the Terms of Use, as amended from time to time and available at Watts .com/terms-of-use . If you do not accept these terms, this product can still be used without WiFi features .
The thermostat includes a step by step tutorial to setup the WiFi connection .

Tutorial
Before first using WiFi features of this product, you must accept the Terms of Use available at
https://www.watts.com/terms-of-use by pressing AGREE below. If you do not accept these terms. this product can still be used without WiFi features.

WIFI
Off On

NETWORK SSID
Select a network from the list:
Your House

DISAGREE

AGREE

Step 1 Agree to Terms of Use

Enter Password

NEXT
Step 2 Turn on WiFi
ZIP/Postal

CONNECT
Step 3 Enter wireless network name .
It must support WPA2 security encryption .
Time Source

ABCDE F

GH I J K L

MN O P Q R

S T U VWX

Y Z

Shft A/1 Del

123456

7890- /

: ; ( ) $&

@" . , ? !

' \

Shft A/1 Del

CONNECT
Step 4 Enter WiFi password .

OK
Step 5 Enter ZIP or postal code . This determines your location for
weather information .

Automatic Manual
NEXT
Step 6 Select if the time is set automatically from the Internet or manually .

16

WiFi and Connectivity Troubleshooting

WiFi Connection Status

Press

i > WiFi > WiFi:On >

to view the

thermostat connection status .

1 3 2
(1) WiFi Signal Strength · The WiFi signal must measure between 0 and
-69 dB to have a reliable connection to the Watts cloud . · A WiFi extender is recommended to be installed if the WiFi signal is between -70 to -100 dB . (2) Internet Connected · The WiFi information screen will show Internet Connected when the thermostat is connected to the router and there is a connection to the Internet . (3) IoT Connected · The thermostat connection status will show IoT Connected when connected to the Watts Cloud and the thermostat is ready to be registered to the app . If IoT is not connected, please follow these steps: Check Password · Double check that you are using the correct WiFi network and password . · The password is limited to 32 characters, and can include upper and lower case letters, numbers, special characters and spaces . A space counts as a character . · The thermostat supports WPA2-Personal password security .

Power Off and On · Power the thermostat off . Next, power the rout-
er off, wait 10 seconds, then power on and wait for the Internet status to be on . Then power the thermostat on .
Check Router & Firewall Consult the router manual or Internet Service Provider (ISP) for assistance with router setup with these configurations: · The router must provide a 2 .4 GHz signal .
The thermostat is not compatible with 5 GHz networks .
· The router is using WPA2-Personal security .
· The router has DHCP enabled with enough available addresses for all Internet devices .
· The router firewall is not blocking the outbound UDP or TCP ports: 53, 123, 443, 8883 .
· The router firewall is not blocking connections to * .azure-devices .net
The router firewall is not blocking the thermostat based upon a MAC filter list .
Network Troubleshooting · tekmar provides free access to a network
troubleshooting tool called RouteThis Helps .
· Download the app from the App Store or Google Play Store to your mobile device .
· Enter code "TEKM" and click "Network scan" . The app will provide further instructions .
Create a WiFi Hotspot If you are unable to connect to the WiFi network, try creating a WiFi Hotspot on your mobile device to bypass the router .
Apple* iOS WiFi hotspot instructions https://support .apple .com/en-us/HT204023
Android** WiFi hotspot instructions https://support .google .com/android/answer/9059108
If the thermostat displays IoT connected when using the WiFi Hotspot, please contact your Internet Service Provider (ISP) or IT professional for assistance with the router .
* Apple and App Store are trademarks of Apple Inc .
** Google, Android and Google Play are trademarks of Google LLC .

17

Installer Settings Setup
The Setup menu contains seven sub-menus that determine how the thermostat operates .
The Access Level setting in the Toolbox menu determines how many settings are available to the user .
Press back to return to the main Settings menu .

SETUP MENU

TOOLBOX

TEMP

SENSORS

ALERTS

RELAYS

HUMIDITY

VENT

Setup - Toolbox
Setting ERROR Displays any error messages . ACCESS LEVEL Select between user and installer access levels . User access level restricts access in the Setup Menu .
STATUS The current status of warm weather shut down, cold weather shut down and each of the relays .
SOFTWARE VERSION Display the software version . LOAD DEFAULTS All settings are returned to factory defaults . CALIBRATE TOUCHSCREEN Recalibrate the screen after loading factory defaults .

Range
N/A
User, Installer
Early Start, WWSD, CWSD, W1, W2, Y1, Y2, G, Acc1, Acc2
N/A
Yes, No
N/A

Default N/A
Installer
N/A
N/A No N/A

18

Setup - Temp

Setting
Screen Page 1
FLOOR MIN - WAKE Select the floor temperature while in the wake schedule . Applies when there is both a floor and an air sensor .
FLOOR MIN - LEAVE Select the floor temperature while in the leave schedule . Applies when there is both a floor and an air sensor .
FLOOR MIN - RETURN Select the floor temperature while in the return schedule . Applies when there is both a floor and an air sensor .
FLOOR MIN - SLEEP Select the floor temperature while in the sleep schedule . Applies when there is both a floor and an air sensor .
FLOOR MIN - AWAY Select the floor temperature while in away . Applies when there is both a floor and an air sensor .
FLOOR MAX Select the maximum floor temperature . This protects the floor covering from over heating . Applies when there is a floor sensor .
Screen Page 2
HEAT TO AWAY Select the heating temperature when away .
HEAT TO MIN LIMIT Select the minimum heating temperature limit .
HEAT TO MAX LIMIT Select the maximum heating temperature limit .
COOL TO AWAY Select the cooling temperature when away .
COOL TO MIN LIMIT Select the minimum cooling temperature limit .
COOL TO MAX LIMIT Select the maximum cooling temperature limit .
Screen Page 3
WARM WEATHER SHUT DOWN Select the outdoor temperature at which the heating is shut off .
COLD WEATHER SHUT DOWN Select the outdoor temperature at which the cooling is shut off .
HEAT PUMP BALANCE POINT Select the outdoor temperature at which the heat pump is shut off and the backup heat source is operated exclusively .

Range
Off, 40 to 95°F Off, 4 .5 to 35 .0°C
Off, 40 to 95°F Off, 4 .5 to 35 .0°C
Off, 40 to 95°F Off, 4 .5 to 35 .0°C
Off, 40 to 95°F Off, 4 .5 to 35 .0°C
Off, 40 to 95°F Off, 4 .5 to 35 .0°C
Off, 40 to 95°F Off, 4 .5 to 35 .0°C
Off, 40 to 95°F Off, 4 .5 to 35 .0°C
Off, 40 to 95°F Off, 4 .5 to 35 .0°C
Off, 40 to 95°F Off, 4 .5 to 35 .0°C Off, 45 to 100°F Off, 7 .0 to 38 .0°C Off, 45 to 100°F Off, 7 .0 to 38 .0°C Off, 45 to 100°F Off, 7 .0 to 38 .0°C
Off, 40 to 100°F Off, 4 .5 to 38 .0°C Off, 40 to 100°F Off, 4 .5 to 38 .0°C Off, -22 to 70°F Off, -30 .0 to 21 .0°C

Default
Off Off Off Off Off
Off
62°F 16 .5°C
Off Off Off Off Off
Off Off Off

19

Setup - Sensors

Setting
SENSOR 1 Select the type of sensor connected to S1 and Com wiring terminals .
SENSOR 2 Select the type of sensor connected to S2 and Com wiring terminals .
SENSOR 3 Select the type of sensor connected to S3 and Com wiring terminals .
INTERNAL ROOM SENSOR 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 .
INTERNAL HUMIDITY SENSOR Select if the internal humidity sensor is on or off . Only available when Sensor 3 is set to read an external humidity sensor .
ROOM OFFSET Manual offset correction of the room temperature measurement .
FLOOR OFFSET Manual offset correction of the floor temperature measurement .
HUMIDITY OFFSET Manual offset correction of the relative humidity measurement .

Range
Off, Room, Floor
Off, Room, Floor, Outdoor
Off, Room, Floor, Humidity
Off, On
Off, On
Off, -5 to +5°F -3 .0 to 3 .0°C
Off, -5 to +5°F -3 .0 to 3 .0°C
Off, -10% to +10%

Default Off Off Off On On Off Off Off

20

Setup - Alerts

Setting
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 W1 or W2 runs continuously for longer than this setting . This setting only applies for heat pump systems .
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 .

Range Off, 40 to 100°F Off, 4 .5 to 38 .0°C
Off, 40 to 100°F Off, 4 .5 to 38 .0°C
Off, 5 to 95%
Off, 5 to 95%
Off, 1 to 24 hours
Off, 200 to 2000 hours
Off, 10,000 to 50,000 hours

Default Off Off Off Off Off Off Off

21

Setup - Relays (1 of 3)

Setting HEATING TYPE Select between conventional heating or heat pump .
EQUIPMENT Select the number of stages of the heating and cooling equipment .
RADIANT FLOOR HEATING Select if the first stage W1 heats a radiant floor .
HEAT 1 DIFFERENTIAL Select when the first stage heating turns on . Turn on point is the Heat To setting minus the differential .
HEAT 2 DIFFERENTIAL Select when the second stage heating turns on . Turn on point is the Heat To setting minus the differential . This setting is available when there are at least 2 heating stages .
HEAT 2 DELAY Select the time delay when the second stage heating turns on . The time delay starts counting after the first stage heating is turned on . This setting is available when there are at least 2 heating stages .
HEAT 3 DIFFERENTIAL Select when the third stage heating turns on . Turn on point is the Heat To setting minus the differential . This setting is available when a heat pump is selected and there are at least 3 heating stages .
HEAT 3 DELAY Select the time delay when the third stage heating turns on . The time delay starts counting after the second stage heating is turned on . This setting is available when a heat pump is selected and there are at least 3 heating stages .
HEAT 4 DIFFERENTIAL Select when the fourth stage heating turns on . Turn on point is the Heat To setting minus the differential . This setting is available when a heat pump is selected and there are 4 heating stages .

Range Conventional, Heat Pump Conventional 1 Heat/1 Cool, 1 Heat/2 Cool, 2 Heat/1 Cool, 2 Heat/2 Cool, Heat Pump
1 HP, 1 HP/1 Aux, 1 HP/2 Aux,
2 HP, 2 HP/1 Aux, 2 HP/2 Aux
Yes or No
0 .9 to 2 .0°F 0 .5 to 1 .05°C
1 .0 to 10 .0°F 0 .6 to 5 .6°C
0 to 180 minutes
1 .0 to 10 .0°F 0 .6 to 5 .6°C
0 to 180 minutes
1 .0 to 10 .0°F 0 .6 to 5 .6°C

Default Conventional
1 Heat/ 1 Cool
1 HP/1 Aux
No 1 .4°F 0 .75°C 2 .0°F 1 .2°C
1 minute
2 .5°F 1 .4°C
1 minute
3 .0°F 1 .8°C

22

Setup - Relays (2 of 3)

Setting

Range

Default

HEAT 4 DELAY
Select the time delay when the fourth stage heating turns on . The time delay starts counting after the third stage heating is turned on . This setting is available when a heat pump is selected and there are at least 4 heating stages .

0 to 180 minutes

1 minute

COOL 1 DIFFERENTIAL
Select when the first stage cooling turns on . Turn on point is the Cool To setting plus the differential .

0 .9 to 2 .0°F 0 .5 to 1 .05°C

1 .4°F 0 .75°C

COOL 2 DIFFERENTIAL
Select when the second stage cooling turns on . Turn on point is the Cool To setting plus the differential . This setting is available when there are two cooling stages .

1 .0 to 10 .0°F 0 .6 to 5 .6°C

2 .0°F 1 .2°C

COOL 2 DELAY
Select the time delay when the second stage cooling turns on . The delay time starts counting after the first stage cooling is turned on . This setting is available when there are two cooling stages .

0 to 180 minutes

1 minute

Y MIN RUN TIME
Select the minimum time the cooling compressor must run before shutting off . This helps prevent compressor failure .

0:30 to 10:00 minutes 2:00 minutes

Y MIN OFF TIME
Select the minimum time the cooling compressor must be off before turning back on . This helps prevent compressor failure .

0:30 to 10:00 minutes 5:00 minutes

DUAL FUEL

Select dual fuel on if the heat pump has 100% backup

Off or On

Off

using a furnace or hydronic fan coil . The setting is available

for heat pump systems with auxiliary heat .

ACCESSORY RELAY 1
Select the type of equipment that the accessory relay 1 operates .

Off,

Humidifier,

Dehumidifier,

Off

Ventilation,

HP Loop Valve

ACCESSORY RELAY 2

Off,

Select the type of equipment that the accessory relay 2

Humidifier,

Off

operates . This setting is only available for conventional

Dehumidifier

heating systems .

23

Setup - Relays (3 of 3)

Setting

Range

HEAT PUMP REVERSING VALVE
Select O for heat pumps designed for normally heating operation . Select B for heat pumps designed for normally cooling operation . This setting is only available for heat pump systems .

O (Orange), B (Blue)

FAN RELAY
Select which relays require fan operation . Combinations with W1 are not available when Radiant Floor Heating is set to yes .

G only, With Y With Y and W1, With Y and W2, With Y, W1 and W2

FAN WITH HRV/ERV
Select if the HVAC system fan should turn on together with the HRV or ERV ventilation fan .

Off or On

HUMIDIFIER TYPE
Select the type of humidifier . This setting is available when Accessory 1 or 2 is set to Humidifier .

Evaporative, Steam,
Stand Alone

WINDOW PROTECTION
Select if the relative humidity setpoint should automatically adjust with outdoor temperature to prevent frost on windows .
This setting is available when Accessory 1 or 2 is set to Humidifier and the outdoor temperature is available (via sensor or internet) .

Off or On

WINDOW QUALITY
The window quality determines the amount that the relative humidity setting is lowed during cold outdoor weather .
Choose the highest number of panes installed and best quality as a starting point . If window condensation appears, lower the setting until condensation stops forming . This setting is available when Accessory 1 or 2 is set to Humidifier and a wired outdoor sensor is installed .

1 Pane 2 Pane 3 Pane
Poor Average Better

DEHUMIDIFIER TYPE
Select the type of dehumidifier . This setting is available when Accessory 1 or 2 is set to Dehumidifier .

DX Coil, Stand Alone

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 .

10 to 180 minutes

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 .

Yes or No

Default O
G only Off
Steam Off
2 Pane Average
DX Coil 10 minutes
No

24

Setup - Humidity
Set the lowest relative humidity level . Range is 10 to 80% Default is 40% Available when Accessory 1 or 2 operates a humidifier .

Humidity Humidify To: 40% Dehumidify To: 60%

Set the highest relative humidity level .
Range is 20 to 90%
Default is 60%
Available when Accessory 1 or 2 operates a dehumidifier .

25

Setup - HRV / ERV Ventilation

VENTILATION FAN

Wake 30 min/hr

Leave

Auto

Return 45 min/hr

Sleep

Auto

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 .

VENTILATION Wake On
45 min/hr 30 min/hr 15 min/hr
Off

26

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: 1) conventional, or 2) heat pump .
Conventional Systems
A conventional heating system includes: furnaces, air conditioners, hydronic heating systems with baseboards, radiant floors, or fan coils and electric heating . The thermostat supports up to two heating stages, two cooling stages, a fan and two accessory relays .

EQUIPMENT SETTING
First stage heating Second stage heating First stage cooling Second stage cooling Fan Accessory 1 Accessory 2

1H/1C

1H/2C

2H/1C

2H/2C

W1

W1

W1

W1

-

-

W2

W2

Y1

Y1

Y1

Y1

-

Y2

-

Y2

G

Choice of: Humidifier, Dehumidifier, HRV/ERV

Choice of: Humidifier, Dehumidifier

Heat Pump Systems
A heat pump system may include additional heat sources as backup . The thermostat supports up to four heating stages, two cooling stages, a reversing valve, a fan and one accessory relay .

EQUIPMENT SETTING
First stage heating Second stage heating Third stage heating Fourth stage heating First stage cooling Second stage cooling Fan Accessory 1 Accessory 2

1HP

1HP/1AUX 1HP/2AUX

2HP

2HP/1AUX 2HP/2AUX

Y1

Y1

Y1

Y1

Y1

Y1

-

W1

W1

Y2

Y2

Y2

-

-

W2

-

W1

W1

-

-

-

-

-

W2

Y1

Y1

Y1

Y1

Y1

Y1

-

-

-

Y2

Y2

Y2

G

Choice of: Humidifier, Dehumidifier, HRV/ERV ventilator

Reversing valve O relay remains closed during cooling.

Reversing valve B relay remains closed during heating.

27

When radiant floor heating is installed, it is always the first stage of heating, followed by the heat pump, and lastly any backup heating . This allows the floor to remain warm in the heating season .

EQUIPMENT SETTING
First stage heating Second stage heating Third stage heating Fourth stage heating First stage cooling Second stage cooling Fan Accessory 1 Accessory 2

1HP

1HP/1AUX 1HP/2AUX

2HP

2HP/1AUX 2HP/2AUX

Y1

W1

W1

Y1

W1

W1

-

Y1

Y1

Y2

Y1

Y1

-

-

W2

-

Y2

Y2

-

-

-

-

-

W2

Y1

Y1

Y1

Y1

Y1

Y1

-

-

-

Y2

Y2

Y2

G

Choice of: Humidifier, Dehumidifier, HRV/ERV ventilator

Reversing valve O or B.

O relay remains closed during heating operation.

B relay remains closed during cooling operation.

Emergency Heat
For systems with heat pumps, the thermostat includes an Emergency Heat mode . This mode shuts off the heat pump Y1 and Y2 relays and operates the auxiliary heat, which is usually more expensive . Select Emergency Heat if the heat pump will not operate due to refrigerant pressure lockout condition .
Heating Differentials
Each heating stage has an adjustable differential and time delay setting to determine when the stage turns on . The heating stages Heat 4 to Heat 1 shut off are when they reach 1 .5, 1 .0, 0 .5, and 0 .0°F (0 .75, 0 .5, 0 .25, and 0 .0°C) of the Heat To setting respectively .
Radiant Floor Heating
Radiant floor heating is operated differently than other heating types due to the large time delays to heat and cool the slab . When Radiant Floor Heating is selected in the setup menu, the W1 relay operates using Pulse Width Modulation . This improves comfort for radiant systems with high mass floors . · 100% on time at Heat To setting -1 .5°F
· 50% on time at Heat To setting
· 0% on time at Heat To setting + 1 .5°F
Room Sensor and Averaging
The thermostat can measure room temperature between -46 to 212°F (-43 to 100°C) . The room temperature can be measured using a combination of the built-in and auxiliary sensors . · Built-in room sensor only
· Built-in room sensor with auxiliary room sensor(s) (temperature is averaged)
· Auxiliary room sensor only

28

Floor Sensor for Radiant Floor Heating
The thermostat can measure floor temperature between -46 to 212°F (-43 to 100°C) . If a floor sensor is connected, floor minimum and maximum settings are available . The floor heating setpoint is adjustable from 40 to 95°F (4 .5 to 35°C) . For a combination of air and floor temperature control, leave the internal air sensor on in the setup menu . A floor minimum can be used to prevent a fast drop in temperature caused by receding solar exposure . This operation is recommended for areas heated by afternoon sun through large windows . When the sun sets, it can take a long time for the floors to get warm again . This may cause the room to cool off too much in the early evening . A floor minimum setting can help with this condition by maintaining a floor minimum temperature . Keep in mind the floor minimum temperature will override the air temperature, and if set too high, may overheat the room . A floor maximum is recommended for rooms with hardwood floors . Setting floor minimum and maximum temperatures is a way of enhancing the comfort of the living space while protecting floor coverings . If there are more than one floor temperature sensors, the temperature is averaged . It's possible to heat a radiant floor while the cooling system is operating . This is desirable in locations such as kitchens and bathrooms . To use this feature, set the Warm Floor During Cooling on .
Cooling Differentials
The first and second stage cooling have adjustable differentials and time delay setting to determine when the stage turns on, and shut off when the room temperature reaches 0 .5 and 0 .0°F (0 .25 and 0 .0°C) above the Cool To setting respectively .
Heat Pump Balance Point
An air source heat pump's Coefficient of Performance (COP) declines with falling outdoor air temperature . The Balance Point is the outdoor temperature at which it is more economical to shut off the heat pump (relays Y1 and Y2) and operate the backup heating equipment (relays W1 and W2) .
Dual Fuel
Dual fuel systems include a heat pump together with a backup heat source such as a furnace or a hydronic fan coil . When Dual Fuel is set to on, the heat pump (relays Y1 and Y2) is shut off whenever the backup heating equipment (relays W1 and W2) is operating .
Warm Weather Shut Down (WWSD)
The heating system can automatically shut off based upon the outdoor temperature and the WWSD setting . This provides a convenient way to shut off the heating system .
Cold Weather Shut Down (CWSD)
The cooling system can automatically shut off based upon the outdoor temperature and CWSD setting . This prevents unwanted cooling during the winter .
29

Relative Humidity Operation

Relative Humidity Sensor
The thermostat includes an internal relative humidity (RH) sensor and has the option to connect to an external RH sensor . The installer has the option to disable the internal RH sensor when an external RH sensor is installed . When both the internal and external RH sensors are enabled, the RH reading is averaged .

Humidifier Operation

The thermostat controls the relative humidity (RH) by operating either the Accessory 1 or Accessory 2 relays . This is an installer configurable setting . When the RH is below the Humidify To setting by 3%, the Accessory 1 or 2 relay is closed to operate a humidifier . The humidifier is shut off when the RH reaches the Humidify To setting .

The thermostat can operate 3 types of humidifiers:

Stand Alone

- The humidifier is not connected to the HVAC system . - The thermostat Mode can be set to Heat, Cool, Auto or Off .

Steam

- The steam humidifier is ducted to the HVAC system . - The thermostat Mode can be set to Heat, Cool, Auto or Off . - Requires the system fan to turn on when operating .

Evaporative

- A drum style humidifier which requires the heating system to operate to evaporate the water .
- This system requires the system fan to operate . - The thermostat Mode must be set to Heat or Auto .

Humidifier Window Protection
During cold weather, condensation will form on windows when the relative humidity (RH) is too high . The optional window protection feature automatically calculates the indoor dew point based upon the outdoor temperature and the quality of the windows installed . The humidifier is then operated to the highest possible RH that is below the Humidify To setting . This feature requires that the outdoor temperature be available (via sensor or internet) .

Dehumidifier Operation

The thermostat controls the relative humidity (RH) by operating either the Accessory 1 or Accessory 2 relay . This is an installer configurable setting . When the RH is above the Dehumidify To setting by 3%, the Accessory 1 or 2 relay is closed to operate the dehumidifier . The dehumidifier is shut off when the RH reaches the Dehumidify To setting .

The thermostat can operate 2 types of dehumidifiers:

Stand Alone

- The dehumidifier is not connected to the HVAC system . - The thermostat Mode can be set to Heat, Cool, Auto or Off .

DX Coil

- The HVAC cooling system is used for dehumidification . - The Accessory 1 or Accessory 2 relay activates the DHUM operation on the air
handling unit to operate the system fan at low speed . - The cooling compressor Y1 and Y2 relays are operated . The chilled DX coil
condenses moisture from the air . - The cooling system can over cool the room temperature by 2°F (1°C) during
dehumidification .

30

HRV / ERV Ventilator Operation
Ventilation with fresh outdoor air is important for maintaining indoor air quality . The thermostat can operate a heat recovery ventilator (HRV) or energy recovery ventilator (ERV) on a timer by closing the Accessory 1 relay to operate the ventilator fan at low speed .
Heat Pump Loop Valve Operation
The thermostat supports water-to-air heat pump systems that absorb or reject heat to a hydronic building loop . Whenever the heat pump compressor Y1 or Y2 relay is turned on, 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 when the heat pump is off, thereby saving electrical energy .
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Error Messages
When an error occurs an email notification will be sent to the registered mobile account owner .
Description
COMMUNICATION ERROR Communication between the display module and the HVAC Interface Module is interrupted . This error clears automatically once communication is re-established . This error can occur if the power supply voltage to the HVAC Interface Module is low . Check the voltage with a volt meter and that the transformer VA rating is enough to power all the equipment .
MEMORY ERROR The thermostat memory settings are corrupted . To clear, load the factory defaults in the Toolbox menu . The thermostat will not operate any heating or cooling equipment while this error message is present .
INTERNAL ROOM SENSOR FAULT Due to an open or short circuit, the thermostat is unable to read the internal room temperature sensor . If sensor 1, 2 or 3 is set to room the thermostat continues to operate, otherwise operation stops . The error cannot be field repaired . Contact your tekmar sales representative for warranty or repair procedures .
INTERNAL HUMIDITY SENSOR FAULT Due to an open or short circuit, the thermostat is unable to read the internal humidity sensor . The thermostat stops controlling the humidifier or dehumidifier unless an external humidity sensor is installed on Sensor 3 . The error cannot be field repaired . Contact your tekmar sales representative for warranty or repair procedures .
SENSOR 1 FAULT Due to an open or short circuit, the thermostat is unable to read the sensor wired to S1 and Com . The thermostat stops normal operation if sensor 1 is the only active room or floor sensor or if a floor maximum temperature has been set . Check the auxiliary sensor wire for short circuits according to the sensor installation manual . It may be necessary to replace the auxiliary sensor . Once the error has been corrected, the error message automatically clears .
SENSOR 2 FAULT Due to an open or short circuit, the thermostat is unable to read the sensor wired to S2 and Com . The thermostat stops normal operation if sensor 2 is the only active room or floor sensor or if a floor maximum temperature has been set . Check the auxiliary sensor wire for short circuits according to the sensor installation manual . It may be necessary to replace the auxiliary sensor . Once the error has been corrected, the error message automatically clears .
SENSOR 3 FAULT Due to an open or short circuit, the thermostat is unable to read the sensor wired to S3 and Com . The thermostat stops normal operation if sensor 3 is the only active room sensor or if a floor maximum temperature has been set . Check the auxiliary sensor wire for short circuits according to the sensor installation manual . It may be necessary to replace the auxiliary sensor . Once the error has been corrected, the error message automatically clears .
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Description INTERNET UNAVAILABLE The thermostat has a WiFi connection to the router but is unable to communicate to the Internet . Steps to clear the error include: 1) power off and on the router, 2) power off and on the thermostat . WATER LEAK DETECTOR WARNING 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 . ROOM HOT WARNING 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 . ROOM COLD WARNING 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 . LOW HUMIDITY WARNING 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 . HIGH HUMIDITY WARNING 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 . AUXILIARY HEAT RUN TIME WARNING 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 . There may be problem with your heat pump . Contact your heating professional for service . CHANGE AIR FILTER WARNING 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 . CHANGE UV LAMP WARNING 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 . ZIP/POSTAL CODE ERROR The thermostat was unable to locate the ZIP or Postal Code entered in the WiFi menu . Please try again with a ZIP or Postal Code of a nearby area .
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Notes
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34

Technical Data

Invita® WiFi Thermostat 564

Literature

Submittal, Installation Operation Manual, User Manual, Job Record, Watts Home Manual

Packaged weight Dimensions Display Enclosure Approvals

1.3 lb. (600 g) Display: 4½" H x 2¾" W x 9/16" D (114 x 70 x 14 mm) HVAC Interface Module: 77/16" H x 47/16" W x 1¼" D (188 x 112 x 31 mm) 3.5" color touchscreen Display: White PVC plastic, NEMA type 1 HVAC Interface Module: Blue PVC plastic, NEMA type 1 Meets Class B: ICES & FCC Part 15

Ambient conditions Environmental

Display: Indoor use only, -4 to 122°F (-20 to 50°C), RH 90% non-condensing HVAC Interface Module: -40 to 122°F (-40 to 50°C), RH 90% non-condensing, outdoor use requires mounting in a NEMA 3 enclosure
Do not use in presence of ammonia (animal barns).

Power supply

21-30 V (ac), 6 VA, Class 2

Relays

30 V (ac) 2 A, Class 2 Circuits

Humidity sensor 0 to 90% ±4% RH

RH Output

3.3 V (dc) humidity sensor power, 3.0 mA maximum

Temperature sensor NTC thermistor, 10 k @ 77°F (25°C ±0.2°C) ß=3892

Optional sensors tekmar type # 070, 072, 073, 076, 077, 079, 084, 086, 087

Communications WiFi 802.11n, 2.4 GHz, WPA2 encryption

Mobile app

Apple iOS 12 or higher, Android 10 or higher

Languages

English/Français/Español

Warranty

3 Year Limited Warranty

35

Limited Warranty and Product Return Procedure
Limited Warranty The liability of tekmar under this warranty is limited. The Purchaser, by taking receipt of any tekmar product ("Product"), acknowledges the terms of the Limited Warranty in effect at the time of such Product sale and acknowledges that it has read and understands same.
The tekmar Limited Warranty to the Purchaser on the Products sold hereunder is a manufacturer's pass-through warranty which the Purchaser is authorized to pass through to its customers. Under the Limited Warranty, each tekmar Product is warranted against defects in workmanship and materials if the Product is installed and used in compliance with tekmar's instructions, ordinary wear and tear excepted. The pass-through warranty period is for a period of twenty-four (24) months from the production date if the Product is not installed during that period, or twelve (12) months from the documented date of installation if installed within twenty-four (24) months from the production date.
The liability of tekmar under the Limited Warranty shall be limited to, at tekmar's sole discretion: the cost of parts and labor provided by tekmar to repair defects in materials and / or workmanship of the defective product; or to the exchange of the defective product for a warranty replacement product; or to the granting of credit limited to the original cost of the defective product, and such repair, exchange or credit shall be the sole remedy available from tekmar, and, without limiting the foregoing in any way, tekmar is not responsible, in contract, tort or strict product liability, for any other losses, costs, expenses, inconveniences, or damages, whether direct, indirect, special, secondary, incidental or consequential, arising from ownership or use of the product, or from defects in workmanship or materials, including any liability for fundamental breach of contract.
The pass-through Limited Warranty applies only to those defective Products returned to tekmar during the warranty period. This Limited Warranty does not cover the cost of the parts or labor to remove or transport the defective Product, or to reinstall the repaired or replacement Product, all such costs and expenses being subject to Purchaser's agreement and warranty with its customers.
Any representations or warranties about the Products made by Purchaser to its customers which are different from or in excess of the tekmar Limited Warranty are the Purchaser's sole responsibility and obligation. Purchaser shall indemnify and hold tekmar harmless from and against any and all claims, liabilities and damages of any kind or nature which arise out of or are related to any such representations or warranties by Purchaser to its customers.
The pass-through Limited Warranty does not apply if the returned Product has been damaged by negligence by persons other than tekmar, accident, fire, Act of God, abuse or misuse; or has been damaged by modifications, alterations or attachments made subsequent to purchase which have not been authorized by tekmar; or if the Product was not installed in compliance with tekmar's instructions and / or the local codes and ordinances; or if due to defective installation of the Product; or if the Product was not used in compliance with tekmar's instructions.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, WHICH THE GOVERNING LAW ALLOWS PARTIES TO CONTRACTUALLY EXCLUDE, INCLUDING, WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, DURABILITY OR DESCRIPTION OF THE PRODUCT, ITS NON-INFRINGEMENT OF ANY RELEVANT PATENTS OR TRADEMARKS, AND ITS COMPLIANCE WITH OR NON-VIOLATION OF ANY APPLICABLE ENVIRONMENTAL, HEALTH OR SAFETY LEGISLATION; THE TERM OF ANY OTHER WARRANTY NOT HEREBY CONTRACTUALLY EXCLUDED IS LIMITED SUCH THAT IT SHALL NOT EXTEND BEYOND TWENTY-FOUR (24) MONTHS FROM THE PRODUCTION DATE, TO THE EXTENT THAT SUCH LIMITATION IS ALLOWED BY THE GOVERNING LAW.
Product Warranty Return Procedure All Products that are believed to have defects in workmanship or materials must be returned, together with a written description of the defect, to the tekmar Representative assigned to the territory in which such Product is located. If tekmar receives an inquiry from someone other than a tekmar Representative, including an inquiry from Purchaser (if not a tekmar Representative) or Purchaser's customers, regarding a potential warranty claim, tekmar's sole obligation shall be to provide the address and other contact information regarding the appropriate Representative.
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tekmarControls.com | tekmar.customerservice@wattswater.com | 1-800-438-3903

IOM-T-564 2408

All specifications are subject to change without notice
Tel: 1-800-438-3903 · Fax: (250) 984-0815 tekmarControls .com © 2024 tekmar



References

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