Installation Manual
Contents Thermostat Installation........................................................................... 4 General Information............................................................................................ 4 What’s in the Box............................................................................................... 4 Tools and Documents Required............................................................................... 4 Thermostat overview............................................
Thermostat Installation Quext Smart Thermostat and Lock 3 Installation Guide
Thermostat Installation General Information This guide is for Quext technicians who install Quext Smart Thermostats into resident units. Read these instructions carefully. If you need help at any time during the installation, escalate to Quext. What’s in the Box There are 4 Quext Smart thermostat sets to a box.
Indicators The table below describes each indicator on the thermostat display.
Thermostat Installation Steps 1. Greet the Resident a. Approach the resident’s unit. b. Knock twice and announce, “Maintenance.” c. Greet the resident and explain to them that you are there to replace their thermostat. Don’t forget to smile! 2. Validate the Current Unit Environment a. Locate the existing thermostat in the unit and write down the temperature that is displayed. b. Verify the unit is maintaining temperature. c. Document if the temperature does not match. d.
b. Using a volt meter, test the power to the mounting plate between R and C terminals. The power must be between 24V and 30V. If it’s not between 24V and 30V, perform a pull test to confirm that the common wire is connected and troubleshoot accordingly. 7. Install the Batteries a. Put the AA batteries in the Quext Smart Thermostat. b. Confirm that the Quext Smart Thermostat is powered by the batteries. The unit should show temperature and LoRa start to connect.
Wiring Connections Quext Smart Thermostat and Lock Terminal Conventional 1 Stage Heating, 1 Stage Cooling R 24VAC Power from Heating Transformer Rc Not Used Y Compressor Relay C 24VAC Common Wire W Heat Relay G Fan Relay Aux Not Used NC Not Used 8 Installation Guide
Troubleshooting and FAQs The Quext Smart thermostat manages the HVAC system via an AC voltage-powered solid-state interface. Upon demand, it sources +24vac (R/Rc) to the Heating (W), Cooling (Y), and Fan (G). The solid-state interface does not operate in the same manner as conventional open-contact relays and thus cannot be function tested in the same manner. The Quext Smart Thermostat can be powered by either 24 volts AC or by internal batteries.
Fan Output a. Turn the rotary knob counterclockwise. The Mode icon in the upper left quadrant of the display should begin flashing. b. Rotate the knob one click clockwise. The Fan icon should begin flashing. c. Press the knob one time. A menu displaying AUTO, ON and CIRC will appear in the lower right quadrant of the display. d. Rotate the knob one click clockwise. The ON icon will begin flashing. e. Press the knob one time. ▪ A multitest meter can now be used to test the thermostat fan control output. f.
Patent Numbers: 10825273, 10803685, 10912370 Quext Smart Thermostat and Lock 11 Installation Guide
