bandary FC660 Smart Thermostat User Guide

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2

CE power and frequency band information are as follows:  

Transmitter Frequency:2.4G Wi-Fi: 2412-2472MHz  

Receiver Frequency:2.4G Wi-Fi: 2412-2472MHz  

Step 5: Separate the base from thermostat by disassembly tool, pulling  

the control wires through the large opening in the thermostat base.  

Smart thermostat FC660  

Data sheet  

Subject to technical alteration  

Compatibility  

Compatibility  

Installation Description  

The Smart Thermostat works with most 24V systems, including gas  

fuel, electric fuel, oil fuel, heat pump and radiant.  

It can control:  

As a component of a large-scale fixed installation, Manufacturer products  

are intended to be used permanently as part of a building or a structure  

at a pre-defined and dedicated location, hence the Waste Electrical and  

ElectronicAct (WEEE) is not applicable. However, most of the products  

may contain valuable materials that should be recycled and not disposed  

of as domestic waste. Please note the relevant regulations for local  

disposal.  

Step 1: Power off your Heating,  

Ventilation, andAir Conditioning  

(HVAC) system by using the master  

switch or circuit breaker box.  

RF-Output Power:2.4G Wi-Fi: 17.95dBm  

Next, level and mount the base on the wall using the supplied screws.  

Do not over tighten the mounting screws as the thermostat base may  

warp causing an improper seating of the thermostat connecting pins to  

the terminal blocks. Use a properly sized installation tool to indicate the  

connection terminal according to the arrow of the base before connecting  

each wire to its dedicated terminal.  

Issue date: 17.12.2024  

Mounting advice  

• Heating:one and two stages (W1, W2)  

• Cooling:one and two stages (Y1, Y2)  

• Heat pump: with auxiliary(O/B,AUX)  

• Fan (G)  

Dear customer,  

This is important for your safety.  

Thank you very much for your purchase, so glad to have nice chance to  

serve you. In order to have a good experience, please keep this user  

manual properly, after buying our product .  

Tip: Look for your master switch or circuit breaker box in the basement,  

attic, utility closet, or behind a wall panel near the thermostat.  

• Power (C, RH, RC)  

Technical Data  

Ensure all power is disconnected before installing. Do not connect to  

live operating equipment.  

STEP 2: Confirm your system  

Security Advice – Caution  

C

is off by turning on your heat (during  

winter) or your AC (during summer).  

Wait a few minutes —you should  

not feel air coming from your vents.  

G

Y1  

RH  

Power supply  

AC 24V 50/60Hz  

WIFI 2.4G communication  

0~+50℃  

* Please install the product at normal temperature with good ventilation,  

keep away from heat source, windows and doors, avoid direct sunlight.  

The installation and assembly of electrical equipment should only be  

performed by authorized personnel.  

Network technology  

Measuring range temp.  

The product should only be used for the intended application.  

Unauthorized modifications are prohibited! The product must not be  

used in relation with any equipment that in case of a failure may  

threaten, directly or indirectly, human health or life or result in danger  

to human beings, animals or assets. Ensure all power is disconnected  

before installing. Do not connect to live/operating equipment.  

Product list  

Set point adjustment 0~50℃  

(default +16~+30℃)  

Tip: If you have a boiler, check to see that the main flame is extinguished.  

Control functions  

Display  

Disassembly  

thermostat  

Mount the supplied  

screws  

Connection terminals  

Step 3: Remove your old  

TFT Resolution 480*480  

Colorful display  

thermostat cover from the wall.  

User Manual  

2

Aluminum alloy, tempered glass, fire  

proof PC &ABS  

1

Enclosure  

Tip: Many thermostats simply pop off or unclip from the base, while  

others may have screws that you will need to remove.  

C

Base 1pc  

G

Display 1pc  

Data sheet 1pc  

Y1  

RH  

Application  

IP20 according to EN60529  

Rear entry  

Protection  

CAUTION! Risk of electric shock due to live components within  

the enclosure, especially devices with mains voltage supply .  

4

Step 4: Take a picture of the wires  

connected to the terminals of your  

old thermostat. You may need to  

reference this photo later.  

3

Cable entry  

Ambient condition  

Mounting  

FC660 smart thermostat is a device for indoor temperature control.  

It is mainly applied to conventional system or heat pump system for  

heating/cooling, with 3 modes easily switchable: Holiday, Away and  

Home. The device is of high reliability and practicability, and it can  

support up to 3H/2C system.  

-10~+50℃, max. 95%rH non-condensing  

Surface mounted  

Please comply with  

• Local laws, health & safety regulations, technical standards and regulations  

• Condition of the device at the time of installation, to ensure safe installation  

• This data sheet and installation manual  

Fasten the base and display unit  

Dispaly size  

86*86*33.8mm  

Cover 1pc  

Power  

cable 1pc  

Disassembly  

tool 1pc  

Screws 2pcs  

WARNING: this thermostat is designed for 24VAC with a 0.5Amaximum  

Base size  

86*86*4.5mm  

current. Do not connect it to line (high) voltage or millivolt systems.  

-1-  

-2-  

-3-  

-4-  

-5-  

-6-  

Dual power supply  

conventional system  

Dual power supply conventional  

system withAux device  

Conventional system  

Conventional system  

withAux device  

When the user selects ventilation mode, only the fan start signal is  

output, the cooling and the heating outputs are keep off.  

Terminals Explanation  

Connection wires: Use the disassembly tool to push the terminal down  

according to the arrow on the base and insert the wire into the terminal  

at the same time. If need remove the wire from terminal, use the  

installation tool to push the terminal down in the arrow direction and pull  

out the wire.  

Terminal Connection wiring diagram  

4 Cooling & Heating output  

Power for heating, AC24V  

Power for cooling, AC24V  

RH  

RC  

C

Heat  

output1  

Cool  

output2  

Heat  

output  

Cool  

output2  

Heat  

output1  

Heat  

output1  

24VAC  

Cool  

output2  

Cool  

output2  

24VAC  

Circle color showed blue-the thermostat is running cooling output  

Circle color showed red-the thermostat is running heating output  

Circle color showed white-the thermostat without any output  

Wiring diagram Conventional system  

Aux Heat  

dehumidifier  

humidification  

Heat  

output2  

Cool  

output1  

Fan  

output  

Cool  

output1  

Fan  

output  

Aux Heat  

dehumidifier  

humidification  

Fan  

output  

Cool  

output1  

Fan  

output  

Cool  

output1  

Heat  

output2  

24VAC  

24VAC  

24VAC  

24VAC  

Common wire, AC24V  

5 TVOC display – Room air quality  

6 CO2 display – Room air quality  

W2  

W1  

G

Y2  

Y1  

C

RC RH  

First outdoor stage cooling on conventionalsystems  

or first heat and cool on heat pump systems  

Y1  

7 Humidity display – Relative room humidity  

Second outdoor stage cooling on conventional systems  

or second heat and cool on two stage heat pump systems  

8 Profile mode – Support holiday/home/away mode adjustment  

(Holiday mode will only display when the user set this holiday  

mode in Parameter Setting)  

Y2  

G

Heat  

output 2  

Fan  

output  

Cool  

output  

Cooling only system  

Cooling only system  

withAux device  

Display panel  

Indoor blower (fan)  

9 Lock - Local thermostat will not be workable when this symbol  

indicated unless it is released by APP on smart phone or input the  

thermostat password (Factory default password "987", and the user  

can set the password, if the user forgot the revised password, the  

user can input the super password "999" to restore the factory  

default passward "987").  

Heat  

output  

Cool  

output 2  

24VAC  

common  

First indoor stage heat on conventional systems or  

first stage auxiliary on heat pump systems  

W1  

Cool  

output2  

Main interface:  

Cool  

output2  

AC24V  

Aux Heat  

dehumidifier  

humidification  

Fan  

output  

Cool  

output1  

Fan  

output  

Cool  

output1  

Second indoor stage heat on conventional systems or  

second stage auxiliary heat on heat pump systems  

24VAC  

24VAC  

W2  

3 Cooling/Heating/  

Ventilation mode  

Changeover (reversing valve) connection for heat  

pump or zone panel systems  

10 Temperature display – The thermostat displays room temperature.  

(Factory default: ℃ display), the user can switch to Fahrenheit (°F)  

by APP  

O/B  

Wiring diagram Heat Pump system  

AUX  

Auxiliary output  

AUX O/B G  

Y2  

Y1  

C

RC RH  

11 ECO mode – In ECO mode it will show the leaf and the word  

ECO in the display  

Wiring Instructions  

Heating only system  

Heating only system  

withAux device  

In ECO mode, factory default cooling temperature is 28℃, heating  

temperature is 19℃.(The user can revised the ECO temperature in  

Parameter Setting)  

1 Setpoint – Factory default is 16~30℃(60~86℉)  

Heat pump system  

Heat pump system  

withAux device  

2 Wifi symbol – 3 different status display  

Blink in gap indicates the thermostat is offline  

Rapid blink indicates the device is in pairing  

Heat  

output1  

Heat  

output1  

O/B  

output  

Cool  

output2  

O/B  

output  

Cool  

output2  

Aux Heat  

dehumidifier  

humidification  

Cool.  

output  

Fan  

output  

Auxiliary  

Heat output  

Heat  

output2  

Fan  

output  

Fan  

output  

24VAC  

24VAC  

Aux Heat  

dehumidifier  

humidification  

Normal status indicates the thermostat connects to router or server successfully  

Cool  

output1  

Fan  

output  

Cool  

output1  

Fan  

output  

Communication  

24VAC  

24VAC  

Cool.  

output 2  

Changeover  

Vavle  

24VAC  

common  

3 Cooling, Heating & Ventilation mode – When the user selects cooling  

mode, the thermostat detects the room temperature is higher than the  

set temperature, the cooling start signal will be output.  

When the user selects heating mode, the thermostat detects the room  

temperature is lower than the set temperature, the heating start signal  

will be output.  

Wifi communication:  

DownloadAPP:  

1.1Search for “Smart Life” or “Tuya Smart” in IOS/AndroidApp and  

download, or scan the relevant QR code here.  

AC24V  

-7-  

-8-  

-9-  

-10-  

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-12-  

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General	Details
Name	bandary FC660 Smart Thermostat User Guide
Make	bandary
Language	English
Filetype	PDF (Download)
File size	2.24 MB

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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• bandary

bandary FC660 Smart Thermostat User Guide Overview

Summary of Contents

• Page 1: Transmitter Frequency: 2.4G Wi-Fi: 2412-2472MHz Receiver Frequency: 2.4G Wi-Fi: 2412-2472MHz The Smart Thermostat works with most 24V systems, including gas fuel, electric fuel, oil fuel, heat pump, and radiant. Ensure all power is disconnected before installing. Do not connect to live operating equipment. This thermostat is designed for 24VAC with a maximum current of 0.5A. The installation and assembly of electrical equipment should only be performed by authorized personnel. The product should only be used for the intended application. The device is of high reliability and practicability, and it can support up to 3H/2C system. In ECO mode, factory default cooling temperature is 28℃, heating temperature is 19℃. When the user selects cooling mode, the thermostat detects the room temperature is higher than the set temperature, the cooling start signal will be output. Look for your master switch or circuit breaker box in the basement, attic, utility closet, or behind a wall panel near the thermostat.
• Page 2: Select “Check the R wire”, rotation the first ring to select the “Rc or Rh” or “Rc and Rh”, press the touch panel to confirm the selection. Select “Auxiliary setting”, rotation the first ring to select the “None” or “First stage heat for heat pump” or “Humidification” or “Dehumidifier”. Select “Temperature difference setting” by rotation the second ring from 1℃ (2℉) to 5℃ (9℉), factory default 1℃. Select “Equipment Installation Setting”, rotation the first ring to select the “Heat Pump” or “Multi Heat Pump” or “Heat Only” or “Cool Only”. Select “Equipment startup delay”, rotation the second ring to select the delay time from 0~15min, factory default 3min. In parameter set two interface, choose the “WiFi pair” to enter pair mode, the “WiFi” symbol flash in main interface. Final confirm “Equipment type”, display the parameters previously selected by the user, if correct, select “Next” and press the touch panel to proceed to the next step. Set “Holiday start time”, “Holiday stop time” & “Holiday setting temp.”, time setting sequence is month, day, year, hour, minute, and am/pm. Input password “987” to enter System Configuration. Press the panel to select “Power On” or “Power Off”.