Abies TAS400 Series Operating instructions

Revised Date: 2012/12/20

1

TAS400 Series

Digital Fan-coil Thermostats

OPERATION MANUAL

Front view Back view

# Item Description

1

LCD Display temperature and operation data.

2

MODE button Access to user and engineer menu and for setting confirmation

3

UP button Increase setting or next item

4

DOWN button Decrease setting or previous item

5

Power On/Off button Turn on/off thermostat

6

FAN speed button Toggle to change Fan speed over Auto/Low/Med/Hi

7

Fan icon Indicate Fan continuous on Auto enabled

8

Hot spring icon or Flake icon Hot spring icon for Heating mode; Flake icon for Cooling mode

9

Flow icon Flow icon for Ventilating mode

10-1

Moon Sign Indicate unoccupied status

10-2

Sun Sign Indicate control output ON

11

Auto Automatic fan On-Off with outputs

12-1

Outdoor icon Indicate door/ window open

12-2

Clock 24-hour timer-Off set

13

Sleep Sleep mode enabled

14

Cover screw Screw to tighten back cover with front cover

15

Back plate Plate for mounting on electric box

16

Wiring terminal blocks Terminals for wiring

17

Mounting holes Holes for mounting on electric box

Installation

Mounting on electric box

1. Separate back plate from the controller by loosing the cover screw;

2. Align the mounting holes on the screw holes of the electric box(applicable to 65x65 or US standard box);

3. Fix the back plate on the electric box by tightening the back plate screws. Suggest to use Philips wider “truss head” or

“washer head” #6-32x 3/4”(20mm).

4. DO NOT let the bolt head rise above the wall of mounting holes of back plate. It might cause the short circuit of the

controller.

Revised Date: 2012/12/20

2

Mounting front cover

1. Lock front cover on the back plate by tightening the cover screw underneath with screw driver of Philip electronic

instrument type or similar.

Wiring Example

1. All wires come from electric box must be inserted above the retainers of respective terminal block before

tightening the captive screws;

Fig.1-1 3-wire valve, 2 Pipe Control, 120/230Vac Fig.1-2 3-wire valve, 2 Pipe Control, 24Vac

Fig.1-3 2-wire valve, 2 Pipe Control, 120/230Vac Fig.1-4 2-wire valve, 4 Pipe Control, 120/230Vac

Fig.1-5 2-wire valve, 2 Pipe Control, 24Vac Fig.1-6 2-wire valve, 4 Pipe Control, 24Vac

Revised Date: 2012/12/20

3

Room/

Set-point

Temperature

Setting

Mode

Select

Mode

Fan Auto/

Co

ntinuou

s

①

10

_

+

*

_

+

*

FAN

* Back to ① when no

button was pressed for 10s

Mode

℃

℃℃

℃/

/ /

/ ℉

℉℉

℉

Select

Or press

Mode button

F

or 3s

*

+/-0.5

o

C

_

+

FAN

Operation

User Mode Operation

The first tier of operation includes the following settings as Figure 2. To operate:

1. Power switch “ON” or “OFF” to start/ stop the control;

2. At switch “ON”, press any button to start the User Mode operation. Press “MODE” button to switch over

different working modes. Press UP/ DOWN button to increase/ decrease or rotate the values of setting. Press

“FAN” button to toggle over different fan speeds. (Note: If press “MODE” button for more than 3 seconds, the

unit of temperature will toggle to change to ℉ (or ℃).)

3. It will return to current room temperature display with the latest setting if there’s no button pressed for 10

seconds.

# Item Description Remarks

1

Room / Set-point

Temperature

Display current room/ set-point

temperature

Setting “-SP-“ parameter in

Engineer table to choose Current

room or Set-point temperature.

2

Temperature Setting Set the required temperature

3

Mode Select

Select the working mode: Cooling (

)

,

Heating (

)

, or Ventilating (

)

.

If press “MODE” button for more

than 3 seconds, the unit of

temperature will toggle to change to

℉ (or ℃).

4

Fan Auto/ Continuous Fan run with the controlled outputs --

Fan

Auto or run continuously (Fan

Continuous Low/Med/Hi speed.)

Only applied to models with fan auto

control.

Fig. 2 User Mode operation sequence

Revised Date: 2012/12/20

4

Control Action

General:

When cooling/heating control output, a “Sun (

)

” icon will be shown on the LCD and the unit will be

active. I.E., Either Heating or cooling valve is open.

Stage On

Current

Temperature

Cooling

Stage

Differential

SP

Cooling Control for Example

OFF

Stage On

Current

Temperature

Cooling

Stage

Differential

Dead Band

Heating

Stage

Differential

SP

Cooling and Heating Control, Auto Changeover, for Example

OFF

Revised Date: 2012/12/20

5

Special:

1. ESI (Energy Saving Input) Contact status -- When the contact is activated (Room unoccupied), a “Moon

(

)

” icon will be shown on the LCD and the thermostat will change the set-point temperatures of Cooling &

Heating to be ESIC & ESIH (refer to Engineer table for details.). When the contact is deactivated (Room

back to be occupied), the unit will set the set-point values back as normal.

2. If disable local ESI contact detection, the room will become occupied status as default.

3. Door/Window status -- When the status is open, an “Outdoor (

)

” icon will be shown on the LCD and the

unit will be stopped. i.e., Both Heating/cooling valves are closed and Fan is stopped.

4. If disable Door/Window contact detection, the Door/Window will become “close” status as default.

5. There is a 2-minute delay to fan off after stop heating if the lowest fan speed (“LFAn” parameter in Eng.

table) is set as “0(stop)”.

Revised Date: 2012/12/20

6

Engineer Mode Operation

This mode is highly suggested to be operated by trained engineers because it is related to system parameters that

will affect the control results. To operate:

1. Press “Up” and “Down” buttons for over 5 seconds to enter into engineer mode;

2. Press UP or DOWN button to rotate the menu item and press MODE button to enter into the item;

3. Press UP or DOWN button to change the setting and press MODE button to confirm the setting and return to

menu item selection. For no button pressed for 10 seconds, it will go back to menu item selection. The setting

won’t be changed then.

4. To leave Engineer Mode, rotate till “End” and press MODE button or leave the button intact for 10 seconds.

5. Engineer mode operation flow chart:

Fig. 3 Engineer Mode operation sequence

E01

E02

+

End

MODE

E01 Setting

_

+

MODE

_

User Mode

+

_

+

MODE

E02 Setting

MODE

_

for 10s under menu

item selection

+

_

+

Press Up/down

for over 5s

Revised Date: 2012/12/20

7

6. Engineer mode menu item descriptions:

°C Type °F Type

Item

Mnemonic

Description

Default

Range Default

Range

Step

1 db Deadband 4.0 0~10.0 7.0 0~18.0 0.5 (°C/°F)

2 ESIC

Unoccupied(ESI) cooling set

point

28.0 25.0~30.0

82.0 77.0~86.0

1.0 (°C/°F)

3 ESIH

Unoccupied(ESI) heating set

point

15.0 10.0~22.0

59.0 50.0~72.0

1.0 (°C/°F)

4 I-t

Integral Time and Output Cycle

Time

90 10~500 90 10-500 10 (Sec.)

5 OP-L Not used

6 SPAn Not used

7 SP-L

Low limit for temperature set

point

10.0 0~50.0 50.0 32.0~122.0

1.0 (°C/°F)

8 SP-H

High limit for temperature set

point

30.0 0~50.0 86.0 32.0~122.0

1.0 (°C/°F)

9 OFSt Current temperature offset 0.0 -10.0~10.0

0.0 -18.0~18.0

0.1 (°C/°F)

10 Pb Proportional band or stage width

2.0 0~10.0 4.0 0~18.0 0.1 (°C/°F)

11 diFF Stage differential 0.5 0.1~1.0 0.9 0.1~1.8 0.1 (°C/°F)

12 LOC

Bit Definition ---

bit 0: MODE button

1: Down buttons

2: Up button

3: FAN SPEED button

4: Power On/Off button

5: Local ESI contact

detection

6: Door/Window detection

7: Not Used

*Bit Value

0: Unlock / enable

1: Lock / disable

Examples:

0- Unlock/enable all

1- Lock MODE

Button

2- Lock Down Button

3- Lock MODE & Down Buttons

4-Lock Up Button

5- Lock MODE & Up Button

…

8-Lock Fan SPEED Button

…

15-Lock MODE & Down & Up &

Fan SPEED Buttons

16-Lock Power Button

…

32-Disable local ESI contact

detection

…

64-Disable Door/Window

contact detection

…

127- Lock/disable all

0 0-127 0 0-127 1

To be continued…

Revised Date: 2012/12/20

8

13 ESI ESI contact definition 0 0~1 0 0~1

0: N.O.

1: N.C.

14 rE-C Not used

15 rE-H Not used

16 rS **

Present Temperature is getting

from built-in temperature

Sensor, remote temperature

sensor, or assigned through

Modbus

0 0~2 0 0~2

0: built-in

1: remote

2: assigned

through

Modbus

17 -SP-

Display present value of

temperature or set-point for

Normal Displaying

0 0-1 0 0-1

0: display PV

1: display SP

18 door

Door or Windows contact

definition

0 0~1 0 0~1

0: Close

1: Open

19 LFAn Lowest Fan speed 1 0~3 1 0~3

0: stop

1: low

2: Med.

3: Hi

20 baud Not used

21 Prty Not used

22 id Not used

23 Str Not used

24 tESt Self-Diagnostic

25 rSt

Reset all parameters as factory

defaults

26 End Exit Engineer Mode

Note: “**” When the “rs” parameter is set as 2(present temperature is assigned by Modbus),

if Modbus communication disconnects for more than 3 minutes, the present temperature will

be changed to get from built-in temperature sensor automatically. I.e. The “rs” parameter will

be automatically changed to 0 (present temperature is getting from built-in temperature

sensor).

Abies TAS400 Series Operating instructions

Abies TAS400 Series Operating instructions

Other documents