Model：BHT-321

Programmable Room Thermostat

User Guide

Welcome Your new thermostat will provide years of reliable service. Using this digital thermostat will provide more uniform comfort in your home through the seasons. Thank you for buying the product! Please read this manual for complete instructions on installing and operating your thermostat. If you require further assistance, please feel free tocontact us.

Thermostat Screws User Guide

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We offer the warranty of 18 months from the sales day. If it is not the problem of quality or beyond the warranty time, we will charge for the after-sale service.

In the box you will find

Service

About your thermostatBHT-321 is a programmable thermostat, used as controlling floor electric heating or water heating system electric actuators open or close. The thermostat is used in the commercial, industrial, hospital, hotel, hotels, civil buildings and villas for heating control.

Features of your thermostatModern desgin similar as a cell phone.Beautiful Frame CHROME creates elegant life.Acrylic lenses to avoid the finger scrath. Touch Button makes simple operation.Large screen display with backlight is easy to read—even in the dark. 5+2 or 6+1 or 7 days six periods program One-touch temp control overrides program schedule at any time. Precise comfort control keeps temperature within 1°C of the level you set. Data memory when power is off.Easy installation.86mm*86mm and 60mm European hidden box is selectable.

Model definition of your thermostatGA: Water heating, 3A

L: BacklightP: Weekly programmable

For example: BHT-321 GAS2LP

Home screen quick reference

Operation

1. Setting Power on/off

Press to turn on/off the power.

2. Setting TemperaturePress to set the temperature.

White or black shell is optional.

Power On/off Up/Down

Set Temp.

Week

LockPeriod

Anti-frozen

OUT

Time setting

Manual Heating On

Room Temp.

Clock

Menu

Floor Temp.

GB: Electric floor Heating, 16AN/A: Internal sensor onlyS2: Both internal sensor and floor external sensor

Technical Data of your thermostat Sensor：NTC

Accuracy：±1℃Room Temp. Range：5-60℃Set Temp. Range：5-99℃Power Consumption：<0.3W Timing Error：<1％Power Supply：200 ~ 240V 50 ~60HzCurrent Load：3A（water heating)， 12A/16A（electric heating）Shell material：PC+ABS (flame retardant）Dimension：86x86x13.3mmAmbient Temp.：0-45℃，5-95％RH （Non-condensing）Storage Temp.：-5-55℃

3. Setting the Clock Press to set minute, hour and week. Press for adjusting. 4. Setting the manual mode.Non-programmable means manual.Press to change manual and programmable.

will display in the screen in manual mode.

schedules makes most comforatable life

Press to set the temperature. Press to set minute, hour and week. Press for adjusting.

Installing your thermostat5. Adjusting program schedules

This product is suitable for standard 86*86mm wall box. European box will be finished within 1 month.

Wiring your thermostat

WARNING: Please arrange the professional technician to install this product according to installation drawing and instruction.

RISK OF ELECTRICAL SHOCK. Disconnect power supply before making electrical connection. Contact with components carrying hazardous voltage can cause electrical shock and may result in severe personal injury or death.instruction.

BECA ENERGY CONTROLS CO.,LTDEmail: nicole@becavalve.com

www.becavalve.com

Press into programmable mode. LOOP will display in the position of clock.

NOTICE: The installation wire should be 1.5-2.5mm2.

Press to select the control way: 5+2 or 6+1 or 7 days programmable. 12345 display in the position of week means 5+2;123456 display in the position of week means 6+1;1234567 display in the position of week means 7days programmable.

Press to select the periods. Press to change the temperature; Press to time adjustment. Press to change the time;

If you want to make temporary adjustment in anyperiod, press then will flash. When finish the setting, all will confirm automatically.

Press again to select the weekend’s temp.and time according to the above steps.

Period12

456

Weekend 1

2

Period Icon Defaulted Time Defaulted Temp.6:008:00

23:00

11:3012:3017:3022:00

8:00

20℃15℃

15℃15℃

22℃15℃

15℃

22℃

3Week

6. Setting functions and options

Remark:1. The defaulted temperature of period 3 and period 4is the same as period 2. Please change it according to the request.2. When setting temperature is OFF, this period is power off.

Press and hold for more than 5 sec. into highsenior mode.

Display Code

Function Setting and options Factory Default

SEN Sensor mode

0：Internal sensor 1：Floor sensor 2：Both internal sensor and floor sensor

0

OSV Set temp. for floor sensor

5-99℃ 40℃

dIF Deadzone for floor temp.

1-9℃ 2℃

AdJ Measure Temp.

Check and calibrate the actual temp. 0.1℃

FrE Anti-frozen 00：Close anti-frozen 01：Open anti-frozen

00

FAC

Factory default

00：Just display 08：Return to factory setting

00

OUt Temperature for floor sensor

Floor temperature Floor temperature

VEr Version no. Please consult the factory

Remark:When the temperature for floor sensor is more than 44℃, the relay will stop; When the temperature for floor sensor returnto 40℃, the relay continues to run. It works whn room temp. islower than set temp.Sensor error:Please select the right sensor mode. If select the different modeor there is error of sensor, Err will display on the LCD screen, the thermostat will stop heating till the problem is solved.

1. Connect the line of power and valve into the terminals. Fix the wall plate into the wall box by a screwdrive2. Connect the lines with the LCD board.3. Connect the LCD board into the wall plate.

2 136 5 4

M

NTC

OpenClose

Valve

220VAC 50Hz N L

2 136 5 4

NTC Load

220VAC 50Hz N L