Meitay-tec BDIR-24-SUPER Programmable Thermostat
Installation Instructions
- It is recommended to mount the thermostat between 1.5 & 1.8 meters from the floor where possible.
- Separate the base from the cover by pressing the tongue (pic.1).
- Gently disconnect the quick connector between the cover and the base (pic.2)
- Line the back panel up against the wall and drill the appropriate fixing holes (pic.3).
- Insert screws so they extend approx. 3/16″ (3 mm) from the wall.
- Align the back panel against these screws, pushing it forward, and allowing it to slide downwards to lock into position.
- Make electrical connections to terminals on the back panel. Refer to the “Wiring Connections” section.
- Reconnect the quick connector.
- Change the JUMPERS position according to the system configuration. Refer to the “Jumper Configuration” section.
- Attach the cover to the base, first the two shafts and then the spring.
- Connect 24Vac to the thermostat; verify that the LCD display is ON.
Do not install the battery before power is applied.
- Remove the battery from the back panel by sliding it to the left and out from its white retaining clip and mounting it in a black holder on the front panel; insert it from the top, gently pressing downwards until it snaps into place and is held under the top clip of the holder.
- The ‘+’ engraved on the battery should be visible (pic. 4).
Be careful – the top clip of the battery holder is fragile.
- Reassemble the front and back covers.
- Connect at the top first then at the bottom
Wiring Connections
| Y1 | Compressor 1 | + | + | + | + | + | + |
| Y2 | Compressor 2 | – | + | + | – | + | + |
| W1 | Heat Element 1 / Heat Pump | H.E 1 | H.E 1 | H.E 1 | H.P | H.P | H.P |
| W2 | Heat Element 2 | – | + | + | – | – | – |
| W3 | Heat Element 3 | – | – | + | – | – | + |
| G1 | Fan | + | + | + | + | + | + |
| G2 | Not in use | – | – | – | – | – | – |
| AL,AL | Not in use | – | – | – | – | – | – |
| Rc | 24Vac Phase (red) | + | + | + | + | + | + |
Jumpers Configuration
Disconnect power, remove battery and wait 5 minutes* before changing the jumpers position. *No need to wait if the unit wasn’t connected to power (1st Install). Important: When changing the jumpers configuration, all information stored in the memory will be lost including the weekly program.
Temperature Sensor
| Temperature Sensor | JP1 |
| Internal sensor | A Position |
| External sensor | B Position |
Compressor Delay
| Compressor Delay | JP3 |
| 4 minutes delay | OPEN |
| No delay (for test only !) | SHORT |
Clock Mode
| Clock Mode | JP4 |
| 24 Hours | OPEN |
| 12 Hours (AM/PM) | SHORT |
Temperature Scale
| Temperature Scale | JP5 |
| Fahrenheit | OPEN |
| Celsius | SHORT |
HC / HP Configuration
| HC / HP Configuration | JP6 | JP7 |
| HC Electric | OPEN | OPEN |
| HC Oil/Gas | OPEN | SHORT |
| HP energized in COOL | SHORT | OPEN |
| HP energized in HEAT | SHORT | SHORT |
External Sensor Connection
Installation Procedure
- Disconnect power to the thermostat.
- Move JP1 to “B” position and connect the sensor to “T1” terminals.
- Reconnect power.
Important: The sensor must be MEITAV-TEC type.
NTC Sensor: Temperature ~ Resistance Characteristics
| Temperature (oC) | 7.2 | 10.0 | 12.8 | 15.6 | 18.3 | 21.1 | 23.9 | 26.7 | 29.4 | 32.2 |
| Resistance (KΩ) | 115.8 | 100.9 | 88.1 | 77.1 | 67.7 | 59.6 | 52.5 | 46.4 | 41.2 | 36.6 |
General
The BDIR thermostat can be controlled using an IR remote control. This remote control unit is Infra-red; It must be pointed at the thermostat to operate. Every time you change a parameter in the Remote Control, you must send it to the thermostat by pressing the ON/SEND button. When the thermostat receives the information it will beep.
LCD Screen
In normal display, the LCD alternates between a real time clock and Set & Room Temperatures.
On/Off & Send Information
- Press the ON/SEND button to turn the thermostat ON and/or send information from the remote to the thermostat.
- Press the OFF button to turn the thermostat OFF and/or send information from the remote to the thermostat.
Mode
- Press the MODE button to switch between:
COOL………………………………
HEAT………………………………..
AUTO CHANGE-OVER………
FAN ONLY……………………….
- Press the ON/SEND button to send information.
Autofan On/Off
- Press the FAN button to switch between:
- AUTOFAN OFF……………………
- The fan will work continuously.
- AUTOFAN ON…………………….
- The fan will only work when there is demand for COOL or HEAT.
- Press the ON/SEND button to send information.
Real Time Clock
- Press the SELECT button – the words “CLOCK” & “SET” will flash.
- Press the (+) button – the hour will flash.
- Using the (+) and (-) buttons adjust the HOURS.
- Press the SELECT button again – the minutes will flash.
- Using the (+) and (-) buttons adjust the MINUTES.
- Press the SELECT button again – the day will flash.
- Using the (+) and (-) buttons adjust the DAY.
- Press the SELECT button again to exit.
Temperature Set-Point
When remote control in COOL mode:
- Press the (+) or (-) buttons – “COOL” & set-point temperature will flash.
- Using the (+) or (-) buttons adjust the setpoint temperature for cool.
- Press the ON/SEND button to send Information.
When remote control in HEAT mode:
- Press the (+) or (-) buttons – “HEAT” & set-point temperature will flash.
- Using the (+) or (-) buttons adjust the setpoint temperature for heat.
- Press the ON/SEND button to send Information.
When remote control in AUTO CHANGE-OVER mode:
- Press the (+) or (-) buttons – “COOL” & set-point temperature will flash.
- Using the (+) or (-) buttons adjust the setpoint temperature for cool.
- Press the SELECT button – “HEAT” & set-point temperature will flash.
- Using the (+) or (-) buttons adjust the setpoint temperature for heat.
- Press the ON/SEND button to send Information.
Weekly Program
The thermostat can be programmed with up to 12 different programs: Four different programs for the weekdays (Monday to Friday); Four different programs for Saturday and four different programs for Sunday (The daily programs are numbered 1, 2, 3 & 4).
- Press & Hold the SELECT button to enter programming – the word “PROGRAM” will flash.
- Use the SELECT button here to quickly switch between Weekdays, Saturdays & Sundays.
- Press the (+) button – “PROGRAM 1” & “START” will flash.
- Use the SELECT button here to quickly switch between Programs 1, 2, 3 & 4.
- Press the (+) button again – the hour will flash.
- Using the (+) and (-) buttons adjust the START TIME – HOURS for PROGRAM 1 (weekdays).
- Press the SELECT button again – the minutes will flash
- Using the (+) and (-) buttons adjust the START TIME – MINUTES for PROGRAM 1 (weekdays).
- Press the SELECT button again – “COOL” and the set-point temperature will flash.
- Using the (+) and (-) buttons adjust the SET-POINT TEMPERATURE FOR COOL (11oC = OFF).
- Press the SELECT button again – “HEAT” and the set-point temperature will flash.
- Using the (+) and (-) buttons adjust the SET-POINT TEMPERATURE FOR HEAT.
- Press the SELECT button again to set PROGRAM 2 and repeat the procedure
Programming notes
- Every time the word “SEND” flashes, press the ON/SEND button to send information to the thermostat.
- When the icon flashes, use the (+) and (-) buttons to switch between:
- Activate program………….
- Deactivate the program & keep it in memory….
- The display will automatically return to normal if no button is pressed for a few seconds.
To turn the thermostat OFF at a specific time, use one of the programs, adjust the time & change the set-point temperature from cool to 11oC. The unit will switch back on at the start of the next program.
REFERENCE:
DOWNLOAD MANUALS:
Meitay-tec BDIR-24-SUPER Programmable Thermostat Owner Manual
OTHER MANUALS:
Meitay-tec BDIR-24-SUPER Programmable Thermostat Product Specification Guide
Meitay-tec BDIR-24-SUPER Programmable Thermostat Owner Manual