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4. At the thermostat, label the G wire from the old thermostat as
the C-wire.
5. Follow the Wyze app to complete installation, selecting the Rc,
C, W wires.
NOTE: To keep fan power, you’ll need to add an additional jumper
wire between the G terminal and the W terminal. You will lose
independent fan control.
Installing your Wyze Thermostat with a boiler and AC (dual
transformer system)
If you have a boiler as well as an air conditioner, you have a dual
transformer system. The installation process for a dual transformer
system is different from a standard installation, so please refer to the
information below.
With dual transformer setups, you will have two R wires—one from
the cooling transformer (RC) and one from the heating transformer
(RH).
It’s also important to note that your C-wire must come from the
cooling side. If your current thermostat has a C-wire that’s coming
from your boiler, this will not work with Wyze Thermostat. If you
don’t already have a C-wire coming from your air handler, you have
two options:
1. Run an additional wire from the air handler to Wyze
Thermostat to use as a C, or
2. Repurpose your G wire as the C using the CWA.
Setting up your Wyze Thermostat
After installing the thermostat and powering it, your Wyze Thermostat
will guide you through a series of simple questions about setting your
temperature preferences, and about your heating and cooling system.
This information is used to set your comfort preferences and save on
energy.
Configuring your Wyze Thermostat for the first time
Turn the knob on the thermostat like a dial to highlight different
options and press it like a button to make your choices. Below are the
topics your thermostat will cover during setup. Select each to learn
more.
Equipment detected
Your thermostat will show you the wires it detects in its connectors.
● If there’s a wire missing, pull off the thermostat display and
check that each wire is fully inserted into their connector, and
that the connector button stays down.
● If you see a wiring error on your thermostat you’ll need to fix it
before continuing. If you selected less wires in the wire
selections stage in the app than you connected in the
thermostat terminals, ensure that the wires connected are
correct and restart the installation process in the app to select
the correct wires.
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