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W, W1
W1
Just like the Y wire, the W wire(s) control the
heating aspect of your system.
E
*
This works nearly identically to auxiliary heat,
but for emergency purposes only.
It has to be turned on manually, whereas
auxiliary heat can turn on automatically if need
be.
O, O/B
O/B
These wires are responsible for switching the
changeover valve in a heat pump system.
The O wire reverses the valve from heating to
cooling, and the B wire switches the
valve from cooling to heating.
W2, Aux
W2
Second stage heating, usually auxiliary
(electric) heating.
Less common thermostat wires:
Uncommon
terminals
Wyze Wire
terminals
Meaning
X, X1, X2
W1, W2 or
C
X wire is for back-up on a heat pump
and allows for auxiliary heating from
the back-up heat source.
B
C or O/B
Some systems use B for common
wire. Determine if your B wire is a
common or O/B wire.
ACC, H, Hum,
Hum1,
H2, Hum2, D, DH,
Dhum, Dehum,
D2,
DH2, Dehum2
*
Some thermostats have this terminal
to connect equipment like
a whole-house humidifier or
dehumidifier.
L
Not needed
The L wire is a system monitor and
used to light a light on the thermostat.
S, S1, S2, T
Not needed
These wires run directly outside and
provide outdoor temperature
information to the thermostat.
Installing Your Wyze Thermostat
Installing a Wyze Thermostat is an easy DIY project that takes about
20-30 minutes. The Wyze app provides step-by-step instructions to
make it easy to install and wire your thermostat, so follow the app
setup as your main guide. We hope you have a great experience
installing your Wyze Thermostat.
Preparation
In the Box:
● Wyze Thermostat x1
● C-Wire Adapter x1
● Back Panel x1
● Wall Cover x1
● Mounting Screws with anchors x1
● Wire Labels x1
● Screwdriver x1
● Quick Start Guide x1
Tools you will need:
● Phillips screwdriver
● Small flat head screwdriver
● Your smartphone with enough juice
● Home WiFi (2.4 GHz) name and password
● Drill and drill bit for mounting (optional)
● Wire stripper (optional)
● Pencil (optional)
If you’d like to pre-drill holes, use a 3/32” drill bit or if you’re drilling
into hard materials such as stone, brick, concrete or marble, use a
masonry drill bit and drill.
Complete Installation Instructions
The Wyze app provides a thorough installation guide. However, here
are some more detailed instructions to walk you through the process
of installing your Wyze Thermostat.
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