Giacomini Ktd3 User manual

0244EN June 2016

Solar thermal SyStem

Control unit

KtD

Description

The KTD control unit is used to programme and control a solar thermal systems.

Two dierent versions are available, KTD3 and KTD5, which are used in

combination with R586S, R586S-0 and R586S-1 circulation groups.

The control unit is user-friendly thanks to its backlight graphic display, four

buttons, handy programming assistant and on-line help pages.

The KTD control unit has inputs for temperature probes type Pt1000, a relay

output for controlling an electronic circulator, and one or two relay outputs

for commanding a electronic circulator (predisposition for commanding

circulator by PWM or 0-10 V signal) and one or two relay outputs for other

additional functions.

The programs on the control unit allows to set various system congurations.

Operation control functions range from the mere reading of the current

measured values to long-term system monitoring and analysis by means of

charts and statistics. Numerous other functions complete the possibilities

oered by the KTD control unit:

• at any time, you can reset the previous values or, if necessary, the

manufacturer's default values;

• the menu locking function prevents any unwanted modication of the

operating parameters set during the unit programming phase;

• the anti-lockout function activates the pump or valve connected to the relay

for 5 seconds, at regular intervals, to prevent any possible lockout due to a

lengthy period of non-use;

• the anti-legionella function heats the boiler to a high temperature at xed

time intervals.

The KTD allows also to view the thermal energy level produced by the solar

thermal system thanks to the setting of certain additional parameters (e.g.

glycol type and percentage, and system ow rate).

Versions and product codes

Serie Product code N° of input for tempe-

rature probe

N° of included tempe-

rature probe

KTD3 KTD3Y003 3 3

KTD5 KTD5Y006 6 4

Optionals

• KTDPY001: overvoltage protection

• KTDSY001: temperature probe Pt1000 (180 °C)

Technical data

• Operational room temperature range: 0÷40 °C

• Operational room humidity range: max. 85 %

• Supply voltage: 100÷240 Vac

• Frequency: 50÷60 Hz

• Power consumption: 0,5÷2,5 W (low consumption in standby)

• Pt1000 probes easuring range: -40÷300 °C

• Power outputs: - mechanical relay: 460 VA resistive / 460 W inductive

- electronic relay: 5÷120 W inductive

• Output to control the ErP circulator: - PWM frequency 1 kHz, level 10 V

- 0-10 V tollerance 10 %, for load 10 KΩ

• Internal fuse: 2 A / 250 V slow blow

• Protection degree: IP40

• Protection class: II

Main characteristics

• Outputs 0-10 V / PWM to control the ErP circulator

• Casing: in 2 parts, ABS

• Type of installation: integrated in the circulation groups (R586S, R586S-0,

R586S-1) or separate on the wall

• Display: graphic display, 128 x 64 points

• Signalling: 1 multi-colour LED

• Programming: 4 buttons

• 18 languages selectable

• Guided installation

• Compliance: - Low voltage 2006/95/EC

- Electromagnetic Compatibility Directive 2004/108/EC

Operating characteristics

Functions KTD3 KTD5

Inputs for Pt 1000 probes 3 6

Pt1000 probes supplied 3 4

Relays outputs:

- mechanical relay

- electronic relay

2 (R1 - R2)

1 (R3)

2 (R1- R2)

Number of system conguration 27 42

Measurement of thermal energy SI SI

Measurement of thermal energy via VFS sensor NO SI (x 2)

Times and temperat. controlled by thermostat function SI SI

Anti-legionella protection via solar system SI SI

Anti-legionella protection via auxiliary heat generator SI SI

Anti-freezing protection SI SI

Net communication CAN Bus CAN Bus

Additional function for not used relays

• Solar By-pass

• Back-up heating control

• Solar panel cooling

• Increase the return ow

• Anti-legionella function

• Tank transfering

• Universal ΔT

• Thermostat 2

• Control of solid fuel boiler

• Signalling with activated protective function

• Signalling with new information message

• Pressure monitoring

• Booster for fast start-up of the system

• Heating circuit

• Parallel operation with R1

• Parallel operation with R2

KTD

0244EN June 2016

Solar thermal SyStem

Control unit

KtD

Typical applications

Warning.

The following illustrations should be viewed only as schematic

diagrams showing the respective hydraulic systems, and do not claim

to be complete. The controller does not replace safety devices under

any circumstances. Depending on the specic application, additional

system components and safety components may be mandatory, such

as check valves, non-return valves, safety temperature liwithers, scalding

protectors, etc., and must therefore be provided.

Symbol Meaning

Circulator

Valve

3-way Valve

R2 on

Heat exchanger

Solar

Probe

Radiator

Symbol Meaning

Chiller

Wood boiler

Accumulator

Auxiliary heating

Swimming pool

Typical application for KTD3 and KTD5

Solar

R1(V1)

Solar with swimming pool + heat exchanger

R1(V1)

R2(V2)

Solar + boiler double coil

R1(V1)

Double solar

S1 S4

S2 S3

R1(V1) R2

Typical application only for KTD5

Solar, accumulator and wood boiler

R1(V1)

R2(V2)

Solar with thermostat and pre-heating

R1(V1)

S2 S4

Double solar, heat exchanger, 2 circulators

S1 S5

R1(V1)

R2(V2)

Solar 3 accumulators and 3 valves

S2 S3 S4

R1(V1)

Note.

For other possible applications refer to the instruction manual.

Signal and command elements

The user interface of the KTD control unit consists of a graphic display,

a signalling LED and 4 buttons. The dot matrix display (1) indicates the

operation of the KTD control unit via text and graphics. The signalling LED (2)

is multi-colour and can assume the following status conditions:

• xed green light if a relay is activated

• xed red light if“OFF”mode is selected

• slow red ashing in“manual”mode

• fast red ashing if there is an error.

Using the 4 buttons (3, 4), you can access the various functions of the control

unit. The “esc” button (3) is used to enter or quit the menu; when it is pressed,

the control unit asks for conrmation that the modications must be stored.

The function of each of the other three buttons (4) is shown in the row of the

display just above the buttons themselves

The right-hand button is only used to choose and conrm a function.

Examples of the button functions:

Button Function

+/- increase/reduce a value

▼/▲scroll up/down through the menu

yes/no conrm/refuse

Info more information

Back go backwards

ok conrm your choice

Conrm conrm the setting

Meaning of the symbols on the display:

Symbol Meaning

Circolator (the symbol rotates if the circulator is working)

Valve (in black is indicated the ow direction)

Solar panel

Boiler or accumulator

Swimming pool

Temperature probe

Heat exchanger

Attention / Error message

New information

0244EN June 2016

Solar thermal SyStem

Control unit

KtD

Installation

Warning.

The installation and programming of the KTD control unit, and the

initial start-up of the solar thermal system, should only be carried

out by expert personnel who must scrupulously respect current

laws and comply with the Standards, project indications, technical

documentation and assembly instructions supplied with the device.

The KTD control unit can be installed integrated in the R586S, R586S-0,

R586S-1 circulation groups or separated on the wall.

The permissible lengths of the connecting cables are:

• Solar panel and external probe: < 30 m

• Other Pt1000 probes: < 10 m

• CAN Bus: < 3 m

• PWM o 0-10 V: < 3 m

• Mechanical relay: < 10 m

• Electronic relay (only for KTD5): < 10 m

Note.

For installation and conguration steps, refer to the instruction

manual.

Dimensions

B C

Product code A [mm] B [mm] C [mm]

KTD3Y003 163 110 52

KTD5Y006 163 110 52

Product specication

KTD3

Dierential control unit for programming and controlling the operation

of the solar thermal system. To be used with the R586S, R586S-0 and

R586S-1 circulation group. Backlight graphic dot matrix display (128x64). 4

buttons, 1 multi-colour signalling LED. Programming assistant and on line

help pages. 3 inputs for Pt1000 temperature probes (3 probes included),

2 mechanical relay outputs. 27 possible system congurations. Thermal

energy measurement function. Anti-legionella protection function via

activation of the solar thermal system. Menu locking function to prevent

any unwanted modication of the operating parameters. Anti-lockout

function with activation (for 5 sec) of circulator or valve connected to relay

output. Value reset function (previous or default values). Supply voltage 230

V AC ± 10 %. 2 A internal protection fuse, slow-blow type 250 V. ABS casing.

Dimensions 163x110x52mm.

KTD5

Dierential control unit for programming and controlling the operation

of the solar thermal system. To be used with the R586S, R586S-0 and

R586S-1 circulation group. Backlight graphic dot matrix display (128x64). 4

buttons, 1 multi-colour signalling LED. Programming assistant and on line

help pages. 6 inputs for Pt1000 temperature probes (5 probes included),

2 mechanical relay outputs. 42 possible system congurations. Thermal

energy measurement function. Anti-legionella protection function via

activation of the solar thermal system. Menu locking function to prevent

any unwanted modication of the operating parameters. Anti-lockout

function with activation (for 5 sec) of circulator or valve connected to relay

output. Value reset function (previous or default values). Supply voltage 230

V AC ± 10 %. 2 A internal protection fuse, slow-blow type 250 V. ABS casing.

Dimensions 163x110x52mm.

0244EN June 2016

Solar thermal SyStem

Control unit

KtD

Additional information

For additional information please check the website www.giacomini.com or contact the technical service: '+39 0322 923372 6+39 0322 923255 *[email protected]

This pamphlet is merely for information purposes. Giacomini S.p.A. retains the right to make modications for technical or commercial reasons, without prior notice, to the items described in

this pamphlet. The information described in this technical pamphlet does not exempt the user from following carefully the existing regulations and norms on good workmanship.