Wolf Steel WSC43BA User manual

W415-4094 / 06.10.22
INSTALLATION GUIDE
WSC43BA Thermostat
Wolf Steel Ltd., 24 Napoleon Rd., Barrie, ON, L4M 0G8 Canada / 103 Miller Drive, Crittenden, Kentucky, USA, 41030
Phone [phone] • www.napoleon.com • [email protected]

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safety handling
EN
!WARNING
• Failure to follow these safety notices could result in fire,
electric shock, other injuries, or damage to the thermostat
and other property. Read all the safety notices below before
using the thermostat.
• Avoid high humidity or extreme temperatures.
• Avoid long exposure to direct sunlight or strong ultraviolet light.
• Do not drop or expose the unit to intense vibration.
• Do not disassemble or try to repair the unit on your own.
• Do not expose the unit or its accessories to flammable liquids,
gases, or other explosives.
Product Name Model
Number FCC ID IC ID
Touchscreen
Thermostat WSC43BA
VA8-WSC43BA 7114A-
WSC43BA
Indoor PIR
Temperature
Sensor
WSC-IS
VA8-WSC-IS 7114A-
WSCIS
Outdoor
Temperature
Sensor with Probe
WSC-OS
Thermostat Power
Module
(not included)
WSC-
PWRM N/A
This device complies with Part 15 of the FCC Rules. Operation is subject
to the following two conditions: 1) The device may not cause harmful
interference; and 2) the device must accept any interference received,
including interference that may cause undesired operation.

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table of contents EN
NOTE: The information throughout this manual is believed to be correct at the time of
printing. Wolf Steel Ltd. reserves the right to change or modify any information within
this manual at any time without notice. Changes, other than editorial, are denoted by a
vertical line in the margin.
1.0 welcome 4
2.0 in the box 4
3.0 wiring diagrams 5
4.0 installation guide 8
4.1 removing your old thermostat 8
4.2 connecting the wires 11
4.2.1 install the thermostat with a
C-wire 12
4.2.2 install the thermostat without a
C-wire (optional) 16
5.0 FAQs 25
6.0 technical specifications 28
7.0 home app 31
8.0 meet your thermostat 35
8.1 device overview 35
9.0 app overview 49

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EN 1.0 welcome
The thermostat makes it easier and smarter to control your
household temperature. You can control and switch easily
between dual fuel sources using custom hybrid heating modes.
With the help of indoor and outdoor sensors, you can balance
hot or cold spots throughout the home to achieve best comfort
or select specific sensors for target temperatures. You can also
set schedules for your thermostat, so it operates automatically
based on the selected time periods and settings.
2.0 in the box
Label 1.
Label 2.
Thermostat
If you have a C
wire, you will not
need the label 2
below.
Control board
C C
RC RC
RC RC
RH RH
R R
C C
S S
G G
R R
RC RC
RH RH Y2 Y2
Y/Y1 Y/Y1
Y/Y1 Y/Y1
W/W1 W/W1
W/W1 W/W1
W2 W2
O/B O/B
* *
G G
WSC43BA Thermostat Indoor Sensor
(WSC-IS)
Outdoor Sensor
Installation &
User Guide
6 x Screws 6 x Drywall
Plugs
Wire Tags

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EN
3.0 wiring diagrams
Below are the wiring diagrams for common HVAC equipment.
Remove the jumper between Rh, Rc, or R terminals. Adjust the
DIP switch on the back of the thermostat to “Disconnect” if you
have connected both RC-wire and RH-wire to the wall-plate.
Otherwise, switch it to the “Connect” side.
G
S
Y1
Y2
M1
M2
C
RC
RH
O/B
W1
W2
Y1 Y2 C Y1 Y2 W1 W2 R C G
Air conditioner Furnace
For dual heat and cooling system,
if applicable.
Humidifier/Dehumidifier
(optional)
Conventional Heating and Cooling System

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wiring diagrams
EN
Heat Pump (Air or Geothermal) with Auxiliary Heat
Remove the jumper between Rh, Rc, or R terminals. Adjust the
DIP switch on the back of the thermostat to “Disconnect” if you
have connected both RC-wire and RH-wire to the wall-plate.
Otherwise, switch it to the “Connect” side.
For dual heat and cooling system,
if applicable.
RO/B W1 W2 O/B
Heat pump Air handler
G
S
Y1
Y2
M1
M2
C
RC
RH
O/B
W1
W2
Y1 Y2 C Y1 Y2W1 W2 R CG
Humidifier/
Dehumidifier
(optional)

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wiring diagrams EN
Boiler or Radiant System with Air Handler and
Conventional Cooling or Heat Pump
Remove the jumper between Rh, Rc, or R terminals. Adjust the
DIP switch on the back of the thermostat to “Disconnect” if you
have connected both RC-wire and RH-wire to the wall-plate.
Otherwise, switch it to the “Connect” side.
G
S
Y1
Y2
M1
M2
C
RC
RH
O/B
W1
W2
Y1 Y2 C
Y1 Y2
W1 W2
R C G
O/B1R
Air conditioner or Heat pump Boiler
Air handler
For dual heat and cooling system,
if applicable.
1For heat pump only.
Humidifier/
Dehumidifier
(optional)

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EN 4.0 installation guide
4.1 removing your old thermostat
Step 1: Switch off your HVAC system
Before you start, please switch off your HVAC system to protect
you and to avoid blowing a fuse. Wait a few minutes, then try to
adjust the temperature of your old thermostat to verify that the
system is off.
RC RH G C
Y1 Y2 W1 W2 O/B
Do not remove
the wallplate
Old thermostat
Breaker box Switch
Step 2: Remove the old thermostat
Remove the old thermostat from the wall. Keep the wall-plate
with wires.

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installation guide EN
RC RH G C
Y1 Y2 W1 W2 O/B
OR
120V
or
higher
Step 3: Compatibility check
If you find a thick wire with wire nuts on the backplate of the old
thermostat, or if the voltage of your old system is 120V or higher,
it will not be compatible with WSC43BA. If none of the above is
true, please proceed to the next step.
Step 4: Take a photo
Take a photo of the wires connected to the terminal of your old
thermostat. You may need to reference this photo later.

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installation guide
EN
Step 5: Label the wires with tags
Label each wire on the wall-plate with the tags (label 1) provided,
then carefully disconnect the wires.
RC RH G C
Y1 Y2 W1W2 O/B
C
RC
G
W1
Y1
RC RH G C
Y1 Y2 W1W2 O/B
C
RC
G
W1
Y1
Remove
NOTE: If there are any jumper wires between Rh, Rc, or R
terminals, do not label them. WSC43BA does not need jumpers.
Remove and save them, along with your old thermostat.
NOTE: For unique wiring situations, see “Wiring Diagrams”
section.

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installation guide EN
4.2 connecting the wires
Do you have a C-wire connected to your old thermostat?
YES = See 4.2.1 NO = See 4.2.2
Terminal Designation
Terminals What It Means
RC 24VAC primary for cooling
RH 24VAC primary for heating
C24VAC common
W1 1st stage primary heating relay/AUX heat
W2 2nd stage secondary heating relay/AUX heat
Y1 1st stage primary compressor contactor
Y2 2nd stage secondary compressor contactor
GFan relay
O/B Changeover valve for heat pumps
SOptional wiring module terminal to combine Y and G, while
reserving an extra in-wall wire to power on the thermostat
RC RH G C
Y1 Y2 W1W2 O/B
RC
G
Y1
W1
C

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installation guide
EN
RC RH G C
Y1 Y2 W1W2 O/B
C
RC
G
W1
Y1
↑
↑
↑
↑
4.2.1 install the thermostat with a C-wire
Step 1: Remove the wall-plate
Unscrew the wall-plate from the wall, then gently pull it out to
ensure the wires will not fall back into the hole.
Step 2: Attach the base of WSC43BA to the wall
Bundle and insert the wires through the holes of the base
of WSC43BA, then attach the base to the wall with screws
(supplied).

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installation guide EN
G
S
Y1
Y2
M1
M2
RC
C
RH
O/B
W1
W2
W1
R/RC/RH
C
G
Y1
G
S
Y1
Y2
M1
M2
RC
C
RH
O/B
W1
W2
W1
R/RC
C
G
Y1
RH
Step 3: Connect the wires
Connect the wires to the corresponding terminal in the base.
Take a photo of the wires when you are finished. You may need
to refer to it later during the setup wizard.
Do you have more than one R-wire (R, RC, or RH)?
YES
R- or RC-wire into the RC terminal
RH-wire into the RH terminal
NO
R-, RC-, or RH-wire into the RC terminal
G
S
Y1
Y2
M1
M2
RC
C
RH
O/B
W1
W2
W1
R/RC/RH
C
G
Y1
G
S
Y1
Y2
M1
M2
RC
C
RH
O/B
W1
W2
W1
R/RC
C
G
Y1
RH

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installation guide
EN
RC&RH
Connect
Disconnect
DIP switch
→→
→
→
Step 4: DIP switch
Adjust the DIP switch on the back of the thermostat to
“Disconnect” if you have connected the RC-wire and the RH-wire
to the wall-plate. Otherwise, switch it to the “Connect” side.
Step 5: Attach the WSC43BA to the base
Gently press the WSC43BA into the base until it clicks.
RC&RH
Connect
Disconnect
DIP switch
→→
→
→

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installation guide EN
Hi ,
Wel com e
Step 6: Power on your system
Congratulations! The installation is finished. Please power on your
HVAC system.
When the power is successfully energized, the thermostat’s
screen will light up and go into the setup wizard. You can
complete the following configuration according to section 4.

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installation guide
EN
4.2.2 install the thermostat without a C-wire
(optional)
Power module requires your system to have the following wires:
• 4 wires: W/W1, Y/Y1, G, and R(or Rc or Rh)
• Or 3 wires: Y/Y1, G, and R(or Rc or Rh)
If you do not have these wires, your system may not be
compatible with the power module.
RC RH G C
Y1 Y2 W1W2 O/B
RC
G
Y1
W1
RC RH G C
Y1 Y2 W1W2 O/B
RC
G
Y1
W1
WSC-PWRM
Power Module
(Not Included)

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installation guide EN
Description:
The C-wire is used to provide power to the thermostat. If your
system does not have a C-wire, you can use the power module
to power your thermostat, using the existing wires.
Power module
To thermostatTo HVAC control board
There are two sides with connections. One side (4 terminals) is for
thermostat connections; the other side, pre-wired (5 terminals), is
for the control board connections.

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installation guide
EN
Step 1: Find the HVAC terminals
Find the control board of your HVAC system. Open your HVAC
system’s cover and take a photo of the wires connected to the
terminals of your old thermostat. You may need to reference this
photo later.
Step 2: Label the wires
Label only the wires from the control board to your old thermostat
with the tags provided (label 2 control board).
WC G Y R
W
R
G
Y
To thermostat
WCG Y R
W C G Y R
Label 1.
Label 2.
Thermostat
If you have a C
wire, you will not
need the label 2
below.
Control board
C C
RC RC
RC RC
RH RH
R R
C C
S S
G G
R R
RC RC
RH RH Y2 Y2
Y/Y1 Y/Y1
Y/Y1 Y/Y1
W/W1 W/W1
W/W1 W/W1
W2 W2
O/B O/B
* *
G G
WC G Y R
W
R
G
Y
To thermostat
WCG Y R
W C G Y R
Label 1.
Label 2.
Thermostat
If you have a C
wire, you will not
need the label 2
below.
Control board
C C
RC RC
RC RC
RH RH
R R
C C
S S
G G
R R
RC RC
RH RH Y2 Y2
Y/Y1 Y/Y1
Y/Y1 Y/Y1
W/W1 W/W1
W/W1 W/W1
W2 W2
O/B O/B
* *
G G

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installation guide EN
Step 3: Disconnect the wires
Disconnect the W/W1, G, Y/Y1, and R wires from the control
board.
Step 4: Connect the wiring module
Reconnect them correspondingly to the 4 terminals side of the
power module.
R -> RC || W/W1 -> W || G -> C || Y/Y1 -> S
R
Y
G
W
Control Board
W
R
G
Y
W C G Y R
To thermostat
To thermostat
Power module
R
Y
G
W
Control Board
W
R
G
Y
W C G Y R
To thermostat
To thermostat
Power module

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installation guide
EN
Step 5: Connect the wires
Generally, the control board will have W, C, G, Y, and R terminals.
Connect the pre-wired side of the power module (5 terminals) to
the corresponding terminals.
Step 6: Position the wiring module
The power module should be installed between your thermostat
wiring and your control board. Install it in the right position,
then close the HVAC cover panel securely and return to your
thermostat.
HVAC Control Board
WC G Y R
Power module
R
Y
G
W
To HVAC control board To thermostat
HVAC Control Board
WC G Y R
Power module
R
Y
G
W
To HVAC control board To thermostat