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TCY-FT-U 

Technical Specifications 

 

Doc: 70-00-0128B, V1.2, 20110621 

© Vector Controls GmbH, Switzerland 

Page 3 

Subject to alteration 

Connection diagram 

 

Description:  

G0 

0V 

 

Power supply:  

0VAC, internally connected to signal common 

24V

  

Power supply:  

24VAC 

0V

  

Signal common:  

Common 0 potential for analog inputs and analog outputs. 

X1

 

RT  

External temperature input: 

NTC 10k

 @ 25°C (77°F) 

 
TCY-FT2-U: 

 

X2

 

CO 

Change over input: 

NTC 10k

 @ 25°C (77°F) 

Y1

 

DO1 

Binary output:  

Valve open 

Y2

 

DO2 

Binary output:  

Valve close 

 
TCY-FT4-U: 
Y1

 

DO1 

Binary output:  

Heating valve open 

Y2

 

DO2 

Binary output:  

Heating valve close 

Y3

 

DO3 

Binary output:  

Cooling valve open 

Y4

 

DO4 

Binary output:  

Cooling valve close 

Mechanical Design and installation 

The unit consists of two parts: (a) The power case with attached mounting plate and (b) the front part.  

Mounting location 

 

On an easy accessible interior wall, approx. 1.5 m (4.5’) above the floor in an area of average temperature. 

 

Avoid exposure to direct sunlight or other heat sources, e.g. the area above radiators and heat emitting electrical 
equipment.  

 

Avoid locations behind doors, outside walls and below or above air discharge grills and diffusers.  

 

Location of mounting is less critical if external temperature sensors are used 

Installation 

1.

 

Connect the wires to be connected to the terminals of the power case according to wiring diagram 

2.

 

Install the mounting plate to the flush mounting box. Make sure that the nipple with the front holding screw is 
facing to the ground. Make sure the mounting screw heads do not stand out more than 5 mm (0.2”) off the 
surface of the mounting plate.  

3.

 

Ensure that the jumpers are set correctly.  

4.

 

Slide the two latches located on the top of the front part into the hooks at the upper side of the mounting plate.  

5.

 

Carefully lower the front part until the interconnector reaches the mounting-plate. Continue pressing in a gentle 
way until the front part is fully connected. While inserting the connectors, a slight resistance can be felt. This is 
normal. Do not use excessive force!  

6.

 

With a Philips-type screw driver of size #2, carefully tighten the front holding screw to secure the front part to 
the mounting plate. This screw is located on the front lower side of the unit. There is no need to tighten the 
screw too much

X

T INT 

0V (COM) 

24V AC/DC 

 

TCY-FT4-U

G0 

Y1 

Heat 

OPEN 

Y2 

Heat 

CLOSE 

  7 
  M  

Signal  

COM 

X1 

X

T EXT

  

IN 

Y3 

Cool 

OPEN 

Y4 

Cool 

CLOSE 

X

T INT 

0V (COM) 

24V AC/DC 

 

TCY-FT2-U

G0 

Y1 

OPEN 

Y2 

CLOSE 

X

T CO

  

IN 

X2 

COM 

 

X1 

X

T EXT

  

IN 

COM 

Summary of Contents for TCY-FT2-U-W01

Page 1: ...No special tool or software is required Name Ordering Item Name Item code Control Type Key data TCY FT2 U W01 40 10 0068 1 Cooling only Compact PID controller with 2 TI 1 3 point output TCY FT2 U W02...

Page 2: ...condensing Transport Storage Climatic Conditions Temperature Humidity Mechanical Conditions To IEC 721 3 2 and IEC 721 3 1 class 3 K3 and class 1 K3 25 70 C 13 158 F 95 r H non condensing class 2MT2 S...

Page 3: ...ation of mounting is less critical if external temperature sensors are used Installation 1 Connect the wires to be connected to the terminals of the power case according to wiring diagram 2 Install th...

Page 4: ...o a power supply for at least 10 hours for the backup function to operate accordingly Error messages The TCY FT U may display the following error condition Err1 The connection to the temperature senso...

Page 5: ...using UP or DOWN buttons Select 009 in order to get access to the user parameters 241 for controls parameters Press OPTION after selecting the correct password 3 Once logged in the parameter is displa...

Page 6: ...1 Cooling only 1 TCY FT2 U W2 Heating only 2 TCY FT2 U Heating and Cooling 2 pipe system 3 TCY FT4 U Heating and Cooling 4 pipe system TCY FT2 U 0 2 TCY FT4 U 0 3 TCY FT2 U W1 0 TCY FT2 U W2 1 TCY FT2...

Page 7: ...open 0 255s 90s CP 14 Minimum running time FO1 TCY FT4 U heating output The minimum time the output runs once it starts This setting prevents frequent switches with very short running times 0 255s 3s...

Page 8: ...offices CP18 2 Switching Energy Hold OFF and Comfort modes Opening the external temperature input will force the unit into the OFF operation mode The operation mode cannot be overridden by using the t...

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