Bosch BCC50 Assembly instructions

Bosch

Connected Control

BCC50 Wi-Fi Thermostat

Installation Guide and User Manual

BoschHeatingAndCooling.com

GET THE MOST

OUT OF YOUR NEW

THERMOSTAT

Download The Bosch

Connected Control App

SEE PAGE 37

FOR MORE INFO

Compatibility

Thermostat Installation

Initial Setup

Advanced Settings

Troubleshooting

Wiring Diagrams

Table of Contents

Main Screen Thermostat

Icons

Temperature Setpoints

Installation Guide BCC50 User Manual

BCC App User Manual

Additional Features

BCC App

App Main Screen Overview

Setpoint(s) on the App

Schedule Overview

Alexa

Google Assistant

Warranty & Legal

Thermostat Overview

System

Fan

Accessory

Wi-Fi

Schedule

Display

Device Info

Factory Reset

App Menu Overview

Mode

Wi-Fi

Device Messages

Device Settings

System Settings

The Bosch Connected Control BCC50 Thermostat is compatible with the majority of 24VAC heating and cooling equipment to

help you save energy and money. Easily control your home's temperature from the intuitive interface using the 5 back-lit touch

buttons, the Bosch Connected Control smartphone app or your voice with the Bosch Connected Control Alexa Smart Home

Skill and your Alexa-enabled smart devices or with Google Assistant.

Connectivity

Connect to your HVAC equipment from anywhere

Sleek Design with Touch Buttons

Sleek design that will look great in your home, with

5 bright illuminated touch buttons & color screen

Programmable

Follows preset or user-deﬁned schedules

Compatibility

Compatible with majority of HVAC systems

(requires C-wire)

Auto-on Safety Control

Keep your home safe using app alerts & auto-on feature

Enabled Smart Devices Compatible

Works with Google Assistant or Alexa

HVAC Filter Reminder

Get alerts when its time to replace your system's ﬁlter

Meet the Bosch Connected Control (BCC50 Thermostat)

Compatibility

u A C-wire (common wire) is required to power the unit

Two wire systems are not supported. If a C-wire is not

readily available, we recommend you seek professional

support from your local contractor.

u The Bosch Connected Control BCC50 Thermostat works

with most 24VAC systems, including gas, oil, propane,

electric, forced air, variable speed, heat pump and radiant.

The thermostat cannot support

u Line voltage thermostats

u Electric baseboard heaters

u Proprietary communicating thermostats

u Millivolt systems

u Remote sensors

Are you unsure of your system compatibility

or how to install your thermostat and need help?

u Self-support videos can be found on our website at:

BoschHeatingAndCooling.com/BCC50

u Contact our support team at 1-800-283-3787

Professional installation is recommended

for the following systems

u Dual Fuel systems (Heat Pump combined with a Furnace)

u Whole-home humidiﬁers and dehumidiﬁers

Included in the box

u Thermostat

u Wall Plate

u Screws & Wall Anchors

u Installation Guide and User Manual

u Wire Labels

Tools you will need

u Small ﬂathead screwdriver

(for fastening the Wall Plate wire terminals)

u Medium Phillips screwdriver

(for attaching the Wall Plate to the wall)

u Smartphone

(for taking pictures of the existing wiring)

u Bosch Connected Control smartphone app

(for conﬁguring the thermostat settings)

Tools you may need

u Needle-Nose Pliers (for pulling wires from the wall)

u Drill with 7/32” Drill Bit (for mounting wall anchors)

u Wire Stripper (for cutting and stripping wires)

u Multimeter (for testing circuit continuity)

u Pen or Pencil (for preventing wires from falling into the wall)

Installation Overview

Once you have everything you need, let’s get started!

Thermostat Installation

Turn OFF power

Turn oﬀ all power to your

HVAC (Heating, Ventilation,

and Air Conditioning) system

by using the master

equipment switch or

circuit breaker box.

Conﬁrm that your system is oﬀ

Try to adjust the temperature on your old thermostat. If

you don’t hear the system turn on within 5 minutes, air

does not come out from the vents or the old thermostat

does not even power on, then you have successfully

turned oﬀ the power to your system.

Step 1 Step 2

Make sure your

old thermostat

Does Not Contain

Line Voltage Wiring

If you see any of these wire nuts,

unfortunately the BCC50 will not work

with your system. If you are unsure or

would like to discuss your options,

please contact a professional or our

support line: 1-800-283-3787.

Step 3

WARNING: Failure to turn oﬀ the power may

result in electrical shock and/or damage to the

equipment.

Remove the old thermostat from the

old wall plate

ON OFF

Y2 W2 G W C Y R RC

EL AUX G OB C Y R RC

OLD WALL PLATE

OLD THERMOSTAT

Take a picture of the existing wiring

Make sure that you can clearly read the terminal labels and

see which wires are connected to which terminal from your

photo. You will need to reference this

photo later during the initial setup.

Note: You can also use the wire labels

we have provided you to correctly

label each wire based on the terminal

where it is connected.

Step 4

Y2 W2 G W C Y R RC

EL AUX G OB C Y R RC

Conﬁrm you have a C-wire connected

to your old thermostat wall plate

If you do not have a C-wire connected to your old

thermostat, please contact a professional or our support

line for further assistance to determine if the BCC50

Thermostat is compatible with your system.

Step 5

Y2 W2 G W C Y R RC

EL AUX G OB C Y R RC

Y2 W2 G W C Y R RC

EL AUX G OB C Y R RC

Disconnect the wires from the old thermostat and

remove the wall plate using a screwdriver

Some thermostats will also require you to use a screwdriver to

disconnect the wires. After the wires are disconnected and

the wall plate removed, we recommend wrapping a pen or

pencil around the wires to prevent them from falling back into

the wall.

Step 6

Step 7

Note: If the new Wall Plate

does not cover up any

holes or unpainted spaces

left by your old thermostat,

use this opportunity to

patch any holes and paint.

Pull thermostat wires through the hole in the center

of the BCC50 wall plate and mark the location of

the mounting screws

It is recommended to use the BCC50 Wall Plate as a reference

guide to mark the mounting holes and ensure that

all holes and unpainted

surfaces are covered.

Drill and insert wall anchors (if necessary)

Drill two 7/32” holes where you marked the location of the

mounting screws and then insert the wall anchors provided

into these mounting holes.

Check if the wall plate is level and insert screws

Make sure your new BCC50 wall plate is level and insert the

included screws from the package and mount your new wall

plate to the wall using a Phillips head screw driver.

Step 8 Insert each wire into the corresponding

terminal and close each terminal using a

ﬂat head screw driver

Use the image you took with your

smartphone of your old thermostat wiring

or the wire labels as a reference for where

to place each wire. Be sure that you insert

each wire, one by one, and then

immediately close the terminal and conﬁrm

that the wire is secure inside the terminal

before moving to the next wire. Repeat this

process for each wire to be installed. If you

are unsure of the terminal names on the

BCC50 Wall Plate, refer to BCC50 Terminal

Key on the next page:

Step 9

SMALL

FLAT HEAD

SCREWDRIVER

NEEDED

PHILLIPS HEAD

SCREWDRIVER NEEDED

Thermostat Installation

LEVEL

R/RC

Note: The color of your wires may not be the same as shown

(1)Emergency Heat and Auxiliary Heat activated at W/E/AUX

BCC50 Terminal

After all wires are securely connected,

gently push any excess wires back into

the hole in the wall

Step 10

Attach the BCC50 thermostat to the

BCC50 wall plate

Step 11

PUSH

HOOK

CLICK

BCC50 Terminal Key

Not Used

C-wire (common)

1st Stage Heating1

1st Stage Compressor

Heating Appliance Power

Cooling Appliance Power

Not Used

Fan

Not Used

2nd Stage Compressor

2nd Stage Heating

Humidiﬁer/Dehumidiﬁer

Reversing Valve

R/RC

Step 12 Step 13

Turn ON the power to

your HVAC by using the

master equipment switch

or circuit breaker box

The thermostat will power on

and display a Bosch logo and

loading bar.

Note: After loading completes,

the thermostat will display the

following screen:

ON OFF Great Job, The Hard Parts Over!

Next get your smartphone and visit your app

store. Download the Bosch Connected Control app

to setup your new BCC50

Your BCC50 Thermostat is not yet conﬁgured to your home’s

HVAC system. Go to the App Store or Google Play to download

the app, create an account and ﬁnish conﬁguring your system.

Three ways to download the

Connected Control App:

u In the App Store or Google Play,

search “Bosch Connected Control” or

“BCC50” and then download the app.

u Visit www.bosch-climate.us/bcc50

or scan QR code below. Click the

links for the app in the Download

App section.

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