Meitav-tec TAT-SUPER User manual

Room thermostat

TAT-SUPER

Owner’s manual and Technician settings

-2-

Index

1. Owner’s Manual………………………………………………………………………………………….………… 3-5

1.1 Turning the unit On or Off ………………………………………………………………………………..……. 3

1.2 Adjusting the set-point temperature ……………………………………………………………………..…… 3

1.3 Selecting system mode …………………………………………………………………………………..……. 3

1.4 Selecting fan speed…………………………………………………………………………………………….. 3

1.5 Enabling or disabling “fan on demand” option …………………………………………………………..….. 4

1.6 Timer ………………………………………………………………………………………………………..…… 3

2. Installation………………………………………………………………………………………………………….. 5

3. Wiring connections …………………………………………………………………………………………….… 5

4. DIP switch configuration……………………………………………………………………………………..….. 6

5. Temperature sensors connection and logic (T1 & T2)…………………………………………………..….. 6

6. Technician settings ………………………………………………………………………………...……...…….. 7-8

6.1 Enter technician settings ……………………………………………………………………………….…….. 7

6.2 Set point temperature limit for heat …………………………………………………………………..……… 7

6.3 Set point temperature limit for cool……………………………………………………………………………. 7

6.4 Lock buttons …………………………………………………………………………………………..………… 7

6.5 Offset for calibration of ambient temperature ……………………………………………………………..… 7

6.6 Enable or disable the LCD backlight…………………………………………………………..……..……….. 7

6.7 Temperature scale …………………………………………………………………………………..…………. 7

6.8 Enable or disable Auto speed selection ……………………………………………………………..………. 7

6.9 Enable or disable input IN,0 ……………………………………………………………………….…………. 7

6.10 Input IN1,0 configuration – change over sensor or remote switch ………………………………………. 7

6.11 Input IN1,0 polarity ………………………………………………………………………………………..….. 8

6.12 Cool only configuration ………………………………………………………………………………………. 8

6.13 Compressor delay (for AC configuration) ………………………………………………………………….. 8

6.14 System configuration - AC (HC) / Fan-Coil…………………………………………………………………. 8

6.15 Internal or External sensor ……………………………………….………………………………….……… 8

6.16 Economy set point for cooling ………………………………….……………………………………….…… 8

6.17 Economy set point for heating ………………………………………………………………………...…….. 8

6.18 Backlight On / Backlight Off………………………………………………………………………………….. 8

6.19 Restore defaults ………………………………………………...…………………………………………….. 8

1. Owner’s Manual

1.1 Turning the unit On or Off

Press the [On/Off] button to turn the unit On.

The word “ON” will appear on display.

Press the [On/Off] button again to turn the unit Off.

The word “OFF” will appear on display.

1.2 Adjusting the set-point temperature

Press the [+] or [-] buttons – the set-point temperature will flash.

Press the [+] or [-] again to adjust the set-point temperature.

Unit ONUnit OFF

Note: the temperature display can be changed by technician to set-point only,

Please refer to DIP switch configuration.

Press the [Mode] button to switch between system modes:

1.3 Selecting system mode

Notes:

- The or icons will flash with demand for cooling or heating.

- The selection of Auto mode can be disabled by technician, please refer to DIP switch

configuration.

- In 2-Pipe system, with T2 change over sensor connected to the unit, the

system mode selection is disabled. “bO” will appear on display when

attempting to change the mode.

- In Cool Only configuration (please refer to technician settings) the Heat and

Auto modes are not selectable.

Cool Heat Auto mode Fan only

1.4 Selecting fan speed

Press the [Fan] button to switch between fan speeds:

High

speed

Medium

speed

Low

speed

Auto

speed

Note: in “Auto speed” the letters “AF” and the active speed will appear on display.

-3-

-4-

1.5 Enabling or disabling “fan on demand” option

Press and hold the [Fan] button to enable or disable fan on demand.

When enabled, the fan will run only with demand for cooling or heating.

The fan icon on the bottom left side if the display will flash.

Notes:

- Fan on demand cannot be enabled when the system mode is set to fan only.

- Fan on demand selection can be disabled by technician, please refer to DIP switch configuration.

1.6 Timer

The timer will switch the thermostat ON or OFF according to the current status.

If the thermostat is ON, the timer will switch it OFF.

If the thermostat is OFF, the timer will switch it ON.

- Press and hold the [On/Off] button for 5 seconds – the hours will appear on display.

- Use the [+] and [-] buttons to adjust the timer (range: 0-10 hours).

- Press the [Mode] button or wait 30 seconds to return to normal mode.

Notes:

When active, the clock icon will appear on display.

In order to cancel the timer, follow the steps above and set the hours to "00".

After an electrical blackout, the timer will not function as the hours will reset to "00". The clock symbol will

flash until the thermostat is turned OFF and ON.

No timer 10 Hours

timer

Timer indication

on normal

display

2. Installation instructions

The thermostat is designed for flush mounting in the room to be controlled.

It should be located where the occupant can easily read the LCD display and use the controls.

If the built in temperature sensor is being used the unit should be placed where the temperature is representative

of the general room conditions.

Cold or warm air draughts; radiant heat and direct sunlight should be avoided.

The standard height to install this unit is 1.5 meter (5 feet) from the floor.

Installation procedure:

1. Disconnect power to the unit.

2. Connect the wires as shown in the enclosed wiring diagram.

All terminals accept 1x0.5mm2/24 AWG.

3. If needed, change DIP switches position.

4. Install the panel in the electrical box (Gewiss Box - GW 24 203).

5. Tighten up the 2 screws.

6. Adapt the front frame-panel into its place, by pushing it towards the wall.

-5-

3. Wiring connections

Heat valve (0.5A)

Cool valve (0.5A)RE

One valve (0.5A)

*For IN1,0 configuration please refer to the technician settings parameters 6.9-6.11.

Risk of Electric Shock and Property Damage. Disconnect each of multiple power supplies before

making electrical connections. Contact with components carrying hazardous voltage can cause

electric shock and may result in severe personal injury or death.

The integrated circuits in the controller are sensitive to static currents.

Take suitable precautions.

High

Medium

Low

Fan (2.6A)

Fan Coil 4-Pipe configuration

Main supply

110~230VAC

Fan Coil 2-Pipe configuration AC – Heat-Cool configuration (HC)

IN1

External sensor (option)

change over

sensor (T2)

Remote

OFF switch

Remote

economy switch

(or) (or)

Important: In 2-Pipe configuration,

terminals HE and RE must be jumpered!

Heat element (0.5A)

Compressor (0.5A)

4. DIP switch configuration

IMPORTANT! Before making any changes in the DIP switch disconnect power from the unit.

ON OFF

Enable Auto mode Disable Auto mode

S2 Display set-point only Normal temperature display

S3 Always run fan on demand* Fan on demand - selectable

Default

OFF

*The option to always run fan on demand must be used in no valve system.

The DIP switch is located on the

side of the thermostat, next to the

T1,0 and IN1,0 terminals.

Switch

OFF

5. Temperature sensors connection and logic (T1 & T2)

Important – Use only an approved NTC 50K@25ºC external sensor with the following characteristics.

N.TC. Sensor; Temperature ~ Resistance Characteristics

Temp °C 7.2 10.0 12.8 15.6 18.3 21.1 23.9 26.7 29.4 32.2

Res. KΩ115.8 100.9 88.1 77.1 67.7 59.6 52.5 46.4 41.2 36.6

Temp °F 45 50 55 60 65 70 75 80 85 90

T1 - External (Return air) sensor connection – option

T2 – Change over sensor

- Disconnect power and connect the temperature sensor to the unit (T1 to T1-0 terminals, T2 to IN1,0 terminals).

- Reconnect power.

- For T1 External sensor change technician parameter 6.15 to “E” (external sensor).

- For T2 Change over sensor change technician parameter 6.9 to “bO” and 6.10 to “EF”.

- For T1, Check the temperature readings and if needed use technician parameter 6.5 to adjust the offset for

calibration of ambient temperature.

Note: The length of the sensors cable is 100 feet (30 meters) with standard cable.

If longer distance is needed then the cable MUST be shielded.

-6-

6. Technician settings

6.1 Enter technician settings

Adjust the set point temperature to 10°C/50°F and wait until display stops flashing.

Press and hold the [Mode] button (7 sec.) to enter technician settings.

Press the [Mode] button to proceed to the next parameter.

Press the [Fan] button to return to the previous parameter.

Use the [+] and [-] buttons to select/adjust parameter values.

Press the [On/Off] button or wait 30 seconds to exit technician settings and return to normal display.

-7-

Set point

limit for

heat

Set point

limit for

cool

Buttons

enabled

Buttons

locked

6.5 Offset for calibration of temperature reading

Range: (-6)…(+6)°C/(-9.8)…(+9.8)°F

Default 0°C/0°F.

Temperature

calibration

offset

Backlight

OFF

CelsiusFahrenheit

6.2 Set point temperature limit for heat

Range: 10...30°C/50...86°F, default 30°C/86°F.

6.7 Temperature scale

“F” blinking - ºF.

“C” blinking - ºC.

6.6 Enable or disable the LCD backlight

On – The backlight is enabled.

Off – The backlight is disabled.

6.8 Enable or disable Auto speed selection

On – Enable the selection of auto speed.

Off – Disable the selection of auto speed.

Enable

auto

speed

Disable

auto

speed

6.3 Set point temperature limit for cool

Range: 10...30°C/50...86°F

Default 10°C/50°F.

6.4 Lock buttons

“OP” - Open (enable all buttons).

“LO” - Lock all buttons except [+] and [-].

IN1,0

enabled

IN1,0

disabled

6.9 Enable or disable input IN1,0

“bF” - (IN1,0) input is disabled.

“bO” - (IN1,0) input is enabled.

6.10 Input IN1,0 configuration

“EF” - Use IN1,0 for T2 change over sensor.

DIP switch S1 must be "OFF".

“E1” - Use IN1,0 for remote off switch.

“E2” - Use IN1,0 for remote economy switch

(use economy set points – see 6.13,6.14)

Change

over

sensor

Remote

OFF

switch

Remote

economy

switch

IN1,0

Normally

IN1,0

Normally

open

Internal

sensor

External

sensor

Press the [Mode] button again or wait 30

seconds to exit technician settings and return

to normal display.

Economy set

point for

cooling

Economy set

point for

heating

Restore

defaults

6.16 Economy set point for cooling

Range: 10...30°C/50...86°F,

Default 30°C/86°F.

6.17 Economy set point for heating

Range: 10...30°C/50..86°F, default 10°C/50°F.

6.19 Restore defaults

In order to restore default values, change to “ON” .

Cool

only

Cool

and

Heat

6.12 Cool only configuration

“CO” + “ON” - Cool only configuration.

“CO” + “OFF” - Cool and Heat configuration.

3 Minutes

compressor

delay

AC (HC)Fan coil

6. Technician settings (cont.)

-8-

6.11 Input IN1,0 polarity (for remote off switch or

remote economy switch)

“PC” – Normally close (triggered when opened).

“PO” – Normally open (triggered when closed).

6.13 Compressor delay (for AC configuration only)

“Cd” + “ON” - Enable 3 minutes compressor delay

“Cd” + “OFF” - Disable compressor delay

6.14 System configuration - AC (HC) / Fan-Coil

“FC” - Fan coil system

“HC” - AC (HC) system – Compressor and Heater

6.15 Internal or External sensor

“I” – Internal sensor.

“E” – External sensor connected to T,0 terminals.

Note: When external sensor is selected but not

connected, the display will show -9.8ºC/-9.8ºF.

Backlight

Off

6.18 Backlight On / Backlight Off

“bL” + “ON” - Backlight On.

“bL” + “OFF” - Backlight Off.

Backlight

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