VOKERA OpenTherm Installation & Operating Instructions Manual

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Page 1

Installation

& Operating

Instructions

THESE INSTRUCTIONS TO BE RETAINED BY USER

OpenTherm

Programmable room thermostat

Page 2

This combined control RFT & OTR (transmitter & receiver) is for use only with the following Vokera appliances:

• Unica HE

• Linea 28HE*,32HE*,36HE*

• Mynute HE

• Mynute VHE

Requires wiring kit

This combined control must not be used or connected to any other appliance. This apparatus must only be installed by a competent person.

This control is comprised of a battery operated transmitter (RFT) and a wired receiver (OTR); the transmitter can be located within any heated area* of the dwelling whilst the receiver must be connected to the boiler**.

* The transmitter can be located up to 25-metres from

the receiver and must be located in an area that is directly heated by the boiler

**The receiver must be connected to the boiler’s Open-

therm connections (see installation booklet) and be sited no more than 1-metre from the boiler

These instructions must be read in conjunction with the appliance installation booklet.

Isolate the appliance from the electrical supply and remove the appliance casing. Locate and remove the PCB cover that contains the Opentherm terminals.

Remove the cover from the receiver and using a suitable piece of 2-core flex, connect the receiver to the Opentherm terminals of the appliance and refit

the PCB cover and

appliance casing.

NOTE The receiver can be mounted on a wall adjacent to the appliance.

The combined control (transmitter & receiver) are coded and paired during the final production test; it’s therefore not necessary to pair the unit at the point of installation or first-use. However if the transmitter/receiver has been reset or either component (transmitter/receiver) is to be used with a replacement/different unit, it will be necessary to recode and pair the new combination.

Ensure the transmitter has been set/left in the coding mode (menu > service > coding > OK) and press button B on the receiver for approximately 5-seconds, LED A will light up briefly. Press ESC to escape from the coding mode.

SPECIFIED USE

WARNING

2.0 PAIRING/CODING OF THE RECEIVER WITH THE TRANSMITTER

1.0 INSTALLATION OF THE RECEIVER

A. LED B. Coding button C. Field strength indicator

ESC

RES

PARTY·ECO

–

4 5

6721

Receiver

Transmitter

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To check that the coding is active or has been successful, go back into the coding mode for the transmitter (menu > service > coding), when you press OK the LED A will light up briefly to confirm that the receiver is now paired with the transmitter.

To check that the receiver is picking up a signal from the transmitter, enter into the menu: Menu > Service > Test HF.

A test signal will be sent for a period of 15minutes from the transmitter to the receiver every 5-seconds. In turn, at least one signal strength indicator LED should light up; the strength of signal is indicated by the quantity of LED’s that are illuminated.

Place the transmitter in a room or location that enables optimum signalling. To cancel the signal strength test, press ESC at any time.

Should it be necessary to cancel or reset the current coding/pairing of the receiver with a respective transmitter, press button B for

10-seconds. The LED will illuminate for 3seconds before going out.

The transmitter (RFT) is powered by 2 x AA batteries and these should last approximately 1.5-years.

The transmitter can be wall-mounted or can left on a desktop or table-top using the freestanding support (supplied).

Remove the battery compartment cover and insert 2 x AA batteries within 10-minutes to ensure any memorised program or setting is maintained.

The transmitter (RFT) and receiver (OTR) have been coded and paired with each other during the final production test at the factory. However if either of the components have been reset or is a replacement unit it will be necessary to code and pair the RFT with the OTR (see section 2.0)

Hinged cover

Display of the day of week

(1 = Monday, 2 = Tuesday etc.)

Multifunctional display, e.g.

“Room temperature 20.0˚C”

Display PARTY- or

ECO program active

Display for batteries to be replaced

Display of the switch phases

RESET button

Icon bar for display of the programming level (rotary switch position MENU)

Change buttons

+/–

Rotary switch for program selection

Button OK (confirmation of setting/ selection or programming)

Button ESC (cancellation of programming entries)

Info button for checking the settings

Battery compartement To open, pull towards the front

Symbol appears during a radio transmission

2.1 SIGNAL STRENGTH TEST

2.2 CODING RESET

3.0 TRANSMITTER OVERVIEW AND SETUP

3.1 INSERTING/REPLACING BATERIES

3.2 INITIAL SETUP

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Once the batteries have been inserted into the battery compartment and the OTR has been connected to the boiler, the transmitter can be mounted/located and programmed for use.

The RFT can be mounted on any wall within the dwelling or can be table/desk located using the stand provided.

To ensure optimum performance, it’s preferable to carry out a signal strength test (section 2.1) before deciding on a final location. Ideally, for wall mounted applications, the unit should be positioned 1.5-metres from the floor level.

Avoid areas such as near or above fireplaces, televisions, windows, or radiators that provide artificial room temperature conditions.

For wall-mounting applications, detach the back-plate from the RFT by inserting a small flat bladed screwdriver on the bottom underside of the unit.

Use a combination of suitable mounting holes on the back-plate to secure the back-

plate to the wall at a height of 1.5-metres from the floor.

Once the unit is powered via the batteries, the display is active and the default settings are enabled.

PROGRAMMING PROCEDURE

Rotate the program selector to the MENU position, using the  buttons you can scroll through the main menu:

• TARGET TEMP

• SERVICE

• HOLIDAY

• PROGRAM P3

• CLOCK/DATE

3.4.1 TARGET TEMP MENU

Using the programming procedure, scroll through the main menu until TARGET TEMP is displayed; press the OK button to select the sub menu:

• COMFORT – temperature required when

the heating is ON

• LOWER – temperature required when the

heating is OFF

• FROST – setting level when the program

selector is in the frost protection mode or the HOLIDAY function has been enabled

Use the  buttons to select the desired temperature/s and press OK to confirm or ESC to cancel any changes.

3.4.2 SERVICE MENU

Using the programming procedure, scroll through the main menu until SERVICE is displayed; press the OK button to select the sub menu; use the  buttons to select the desired function:

• HW IMMEDIATE

• CODING

• TEST RF

• CONTROL

• WALL COMP

• OPTIMISATION

• DISPLAY

• HOT WATER

• LANGUAGE

3.3 MOUNTING/LOCATION

3.4 MENUS AND SUB-MENUS

Wall mounting

Free-standing

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See section 5.0 for more detailed information on the SERVICE functions.

3.4.3 HOLIDAY MENU

Using the programming procedure, scroll through the main menu until HOLIDAY is displayed; press the OK button to select the sub menu; use the  buttons to program:

• START HOLIDAY – the date and time

when you want the holiday period to begin

• END HOLIDAY – the date and time when

you want the holiday period to end

• FROST SETTING – the operating tempera-

ture that is active during the holiday period

• CHECK – used to check the above pro-

grammed details

• CLEAR – used to clear or cancel the

holiday settings or activity.

3.4.4 PROGRAM P3 MENU

Using the programming procedure, scroll through the main menu until PROGRAM P3 is displayed; press the OK button to select the sub menu; use the  buttons to select the desired function:

• HEATING – programme your own individual

ON/OFF times for the central heating

• HOT WATER – programme your own in-

dividual ON/OFF times for hot water

See section 4.0 for more detailed information on the PROGRAM P3 functions.

3.4.5 CLOCK/DATE MENU

Using the programming procedure, scroll through the main menu until CLOCK/DATE is displayed; press the OK button to change/review; use the  buttons to change/ amend the date and time as follows:

The selector can be positioned to enable the various modes of operation as well as the MENU position. P3 – move the program selector to this position if you want to use your own specific programme for heating and hot water (see 4.0) P2 – is a fixed programme; comfort temperature is active during Mon - Fri 6 - 8 am, 4 10 pm, and Sat - Sun 7 am - 11 pm. The lower temperature is active at all other times P1 – is a fixed programme; comfort temperature is active during Mon - Fri 6 am - 10 pm, and Sat - Sun 7 am - 11 pm. The lower temperature is active at all other times

- Comfort temperature setting: when the selector is in this position, the room temperature is permanently maintained at the comfort value

- Lower temperature setting: when the selector is in this position, the room temperature is permanently maintained at the lower value

- Frost protection setting: when the selector is in this position, the room temperature is permanently maintained at the frost protection value

With the INFO button, you can check/display the following:

• Current room temperature

• Target room temperature

• Required hot water temperature

• Date and time

• Current operating mode

• Current display mode

• Switching times of the current program

(only visible when the hinged cover is open)

1. The display shows the time setting.

2. Set the current time with the buttons and :

Set the hour and confirm with the OK button.

Set the minutes and confirm with the OK button.

Hour 0:00

Hour 15:00

Minute 15:34

With the ESC button you can always return to the previous programmming step in order to adjust a setting.

1. The display shows the time setting.

2. Set the current time with the buttons

▲ and ▼:

Set the hour and confirm with the OK button.

Set the minutes and confirm with the OK button.

Year 2002

Month 04

Day

09.04

3. The display changes automatically to the date setting. Set the year, month and date one after the other. Confirm each setting with the OK button. The display changes automatically.

3.5 PROGRAM SELECTOR

3.6 INFO BUTTON

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By using the  buttons, you can temporarily alter the target temperature (up or down) until the next temperature change, e.g. from Comfort to lower.

• Press either of the  buttons to display

the current target temperature

• Continually press the  button to increase

the target temperature, or the  button to decrease the target temperature until the required temporary value is displayed

• After 3-seconds, the display will automati-

cally return to its original state and the thermostat will regulate to the new temporary value

• When the selector is in either of the perma-

nent Comfort – Lower – Frost settings, the temporary target temperature is maintained until the selector is moved or a new temporary value is chosen.

With the party/eco function you can temporarily change the set temperature profile up to a maximum period of 23-hours and 50minutes.

• Press and hold both  buttons simulta-

neously for 2-seconds

• The display changes and shows PERIOD

and a flashing clock; within the 3-seconds press either  button to move the display to the required time period (increments of 10-minutes).

• After 3-seconds, the display changes and

shows flashing text COMFORT or LOWER.

If necessary, use the  buttons to change the display to show COMFORT or LOWER in order to select the preferred temperature regime for the set period.

• The display changes automatically after

3-seconds to show the desired temperature regime ECO (lower) or PARTY (comfort); the party/eco program is now active for the period selected.

• The party/eco function can be cancelled by

pressing and holding both  buttons simultaneously for 2-seconds and then wait for 3-seconds; the display will revert to normal and the party or eco function will be cancelled.

To program bespoke time settings for the heating and hot water proceed as follows:

STEP-1: Rotate the selector to the MENU setting and select PROGRAM P3 and then select NEW from the sub-menu

TARGET TEMP Service Holiday

PROGRAM

Clock/Date

New Check Clear End

5.3.2 Creating a new temperature profile P3

HOUR

16:00

MINUTE

16:30

New

Free

Mo-Fr

Sa/Su Daily

sec.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday

Lower

Comfort

END

Single day

Display of the free memory areas

3sec.

back to

NEW

STEP-2: Select the day or group of days that are to be programmed and then select the time periods

Display of the free memory areas

back to

3.8 PARTY/ECO PROGRAM

4.0 PROGRAMMING

3.7 TEMPORARY ADJUSTMENT OF THE TARGET TEMPERATURE

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5.3.3 Checking the temperature profile P3

By pressing the OK or button, all switch times of the day are dis- played one after the other. Once the last switch time is reached, the switch times ofthe next day are dis- played etc.

CHECK

7654321

PROG

6:00

6915182124h

21 . 0 C

END

3sec.

Empty

no program stored in memory

back to

Program

see 5.3.1

back to

Program

see 5.3.1

no program stored in memory

By pressing the OK or ▲ button, all switch times of the day are displayed one after the other. Once the last switch time is reached, the switch times of the next day are displayed etc.

back to

STEP-3: You can confirm time settings via the sub-menu

STEP-4: You can clear time settings via the sub-menu

5.3.4 Clearing the temperature profile

CLEAR Single

All

END

back to

Single

see

5.3.5

see

5.3.6

back to

5.3.5 Displaying individual switch times and clearing them

5.3.6 Clearing all switch times

The switch times are dis- played one after the other. Display next switch time with .

Single

Empty

7654321

PROG

6:00

036912151821

24h

21 . 0 C

no program stored in memory

7654321

PROG

6:00

036912151821

24h

Loeschen

END

The switch time is cleared and the next switch time is displayed.

3sec.

Display of the switch time

In order to clear the displayed switch time, press the OK button.

back to

Program

see 5.3.1

back to

Program

see 5.3.1

1. Displaying the switch times

2. Clearing the desired switch times

Clear

All

Empty

no program stored in memory

Confirm

In order to cancel the clearing process, press the ESC button.

back to

Program

see 5.3.1

back to

Program

see 5.3.1

Displaying individual switch times and clearing them

Displaying the switch times

Clearing the desired switch times

Clearing all switch times

no program stored in memory

In order to clear the displayed switch time, press the OK button.

The switch time is cleared and the next switch time is displayed.

The switch times are displayed one after the other. Display next switch time with ▲.

no program stored in memory

back to

In order to cancel the clearing process, press the ESC button.

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Using the programming procedure, scroll through the main menu until SERVICE is displayed; press the OK button to select the sub menu; use the  buttons to select the desired function:

• HW IMMEDIATE

• CODING

• TEST RF

• CONTROL

• WALL COMP

• OPTIMISATION

• DISPLAY

• HOT WATER

• LANGUAGE

With this function, household water can be heated and enabled once, regardless of the times set in the program.

Setting with the buttons  or . Confirm the value with OK (cancel with ESC).

This function is used to ‘pair’ the transmitter with the receiver. Transmitter and receiver are already ‘paired’ at the factory so during normal installation and use, it’s not necessary to carry out this function; see section 2 for more detailed information.

See section 2.1

Characteristics of the PD controller With suitable heating systems the PD controller is characterized by a short setting time, scarce maximum overshooting and therefore a high control accuracy. Characteristics of a hysteresis controller With over or under engineered heating systems a hysteresis controller is characterized by scarce shift frequency and small temperature deviations.

If required, the transmitter can be calibrated to account for temperature differentials between the mounting location (wall) and the ambient room temperature, e.g. if the transmitter is located on a wall that is an external wall of the dwelling.

Example: The difference between the measured and the controlled temperature is 2 °C, i.e. the room temperature is regulated 2 °C too high: Offset value –2 °C.

TARGET TEMP

Service

Holiday PROGRAM Clock/Date

Display Language Wall comp Control End

see 5.4.2 see 5.4.3 see 5.4.4 see 5.4.5

test hf coding

Wall comp

0.0oC

5.0 SERVICE MENU

5.1 HW IMMEDIATE

5.4 CONTROL

5.5 WALL COMP

5.2 CODING

5.3 TEST RF

WW-SOFORT

AUS EIN

EINSTELLUNGEN

hw immediate

settings

off on

Control

Hyst control

Pd control END

Amplitude

0.2oC

Period

Hysteresis

0.3oC

Offset

0.3oC

Set with buttons

or :

0.2°C ... 5.0°C

5 ... 30

0.1°C ... 0.2°C

END

or autom. after 6 sec.

back to

Service

see 5 .4.1

Set with buttons

or :

0.2°C ... 1.0°C

5 … 30

0.1 °C ...0.2 °C

Set with buttons ▲ or ▼:

0.2 °C ...5.0 °C

back to

or autom. after 6 sec.

see 5.4.1

Set with buttons ▲ or ▼:

0.2 °C ...1.0 °C

Page 9

Offset value adjustable from –3 °C ... +3 °C. Setting with ▲ or ▼. Confirm the value with OK. Cancel with ESC.

The optimal start function – when enabled – starts the boiler (prior to the timed ON period) in order to have the room at the comfort temperature level when the Timed ON period begins.

The optimal start function can be set from 0minutes (optimisation is disabled) up to 60minutes. The unit measures the temperature differential between the actual (room) temperature and the target – comfort – temperature and starts the boiler the set period of minutes for each degree of differential that exists.

Example:

• Optimisation is set at 10-minutes

• ON (comfort) period begins at 6:00 am

• Temperature differential (between actual

18 °C and comfort setting 21 °C) is 3-degrees

• Therefore 3 x 10 = 30-minutes

• Boiler is started at 5:30 am to ensure room

is at comfort level for 6:00 am

The normal display can be changed to show different information.

Select the display type with the button ▲ or ▼. Confirm with the OK button. Cancel with ESC. Note: The factory stetting is highlighted grey in the table.

You can choose to have the unit manage the timed settings of the hot water function, or both time settings and outlet temperature.

The following languages can be selected via the LANGUAGE function:

• English

• German (Deutsch)

• Italian (Italiano)

• Portugese (Portugues)

• Dutch (NL)

• Spanish (Espanol)

• French (Francais)

Rotary switch position

P1, P2 or P3

Rotary switch position

Display type Display type

34512345

Time T T

N N

Target temp. N

NT NN

Actual temp. N

NTN N

Program name

TTTTT

Table: Overview of the information shown in the display for different display types.

7654321

PROG

6:00

6915182124h

21 . 0 C

T = text line

N = numerical display

T = text line

N = numerical display

Table: Overview of the information shown in the display for different displays types.

Language

Francais English Deutsch NL Espanol Italiano

Select the language with the buttons or . Confirm with the OK button. Cancel with ESC.

back to

Service

see 5.4.1

back to

Select the language with the buttons ▲ or ▼. Confirm with the OK button. Cancel with ESC.

hot water

hw time only hw time/temp

Display

5.6 OPTIMISATION

5.8 HOT WATER

5.9 LANGUAGE

5.7 DISPLAY

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See example below

Reset button >

Time: 12:00 Date: reset Holiday program: clear (See 4.0 Step 4 to clear all programs)

Control type: RS type 1 acc. to

EN 60730-1:1991 Accuracy: ± 1 sec. per day at 20 °C Control accuracy: ± 0.2 K Temperature meas. range:

O °C to 50 °C,

resolution 0.1 °C Temperature setting range:

6 °C to 30 °C in increments

of 0.2 °C Control period: 5 to 30 min. (PD control)

Control lock-in range:

± 0.2 K to ± 5 K (PD control)

Switching hysteresis:

± 0.2 K to ± 1 0 K (hysteresis control)

Memory spaces: 32 temperature changes,

programmable for Mo-Fr, Sa-Su, each day or for individual days

Class of protection:

III according to EN 60730-1

Type of enclosure:

IP 20 according to EN 60529-1

Batteries: 2 x alkaline batteries 1.5 V,

type AA

Power reserve during battery emplacement:

10 minutes

5.5 Time/Date and Summer/Winter Time

Service TARGET TEMP

CLOCK/DATE

PROGRAM HOLIDAY

Hour

Day

With s/w

USA/CAN SF/GR/TR Gb/P

Europe

END

End

No su/wi

Free

Setting the time and date: hour, minute, year, month, day. Description see page 18.

Month su