BPC DUPLEX 250 Easy Bedienungsanleitung

DUPLEX 250, 300, 400 Easy

Use, maintenance and installation manual

Version: 08

Issue: 22. 04. 2014

Code: R_19_01_V08_EN_2014_04

1. C o n t e n t

1. Content ................................................................................................................................................................2

2. Operating the equipment – CPA controller ..........................................................................................................3

2.1. Performance settings .............................................................................................................................3

2.2. Unit’s operating modes ..........................................................................................................................4

2.3. Description of controls ............................................................................................................................4

2.3.1 Basic menu ............................................................................................................................................4

2.3.2 “MODE“ menu (operating mode) ...........................................................................................................5

2.3.3 Menu „PROGRAM“ (weekly program) ...................................................................................................5

2.3.4 “PARTY“ and “HOLIDAY” menu (temporary operating modes) ..............................................................6

2.3.5 “REHEAT” menu (air reheat) ..................................................................................................................6

2.4. User system settings ..............................................................................................................................6

2.4.1 “FILTER“ menu .......................................................................................................................................6

2.4.2 “TIME” menu ..........................................................................................................................................7

2.4.3 “INPUT” menu ........................................................................................................................................7

2.4.4 “SWITCH” menu (binary input DI1) ........................................................................................................7

2.4.5 “SENSOR“ menu (analogue input IN1) .................................................................................................7

2.4.6 “LIMIT” menu..........................................................................................................................................8

2.4.7 “TEMPERATURE” menu ........................................................................................................................8

2.4.8 “DISPLAY” menu ....................................................................................................................................8

2.4.9 “LANGUAGE" menu ...............................................................................................................................8

2.4.10 Automatic ventilation modes ..................................................................................................................8

2.4.11 Constant pressure in a supply line .........................................................................................................9

2.4.12 Warning messages ................................................................................................................................9

2.4.13 Supply air reheat mode ..........................................................................................................................9

2.5. Operating the equipment – the CPB controller ......................................................................................9

2.6. Performance settings ...........................................................................................................................10

2.7. Description of controls ..........................................................................................................................10

2.8. Limiting ventilation capacity ..................................................................................................................10

3. Equipment maintenance by the user ................................................................................................................10

3.1. Basic instructions, filter replacement, maintenance and cleaning .......................................................10

3.2. G4 / F7 filter cloth replacement ............................................................................................................10

3.3. Cleaning the plastic heat recovery exchanger ..................................................................................... 11

3.4. Cleaning the CPA controller .................................................................................................................12

3.5. Other miscellaneous maintenance .......................................................................................................12

4. Faults, errors and troubleshooting ....................................................................................................................13

4.1. Description of fault messages and their causes ..................................................................................13

5. Equipment installation and commissioning .......................................................................................................14

6. Equipment installation and commissioning .......................................................................................................14

6.1. Package content ..................................................................................................................................14

6.2. Key dimensions of the equipment ........................................................................................................14

6.3. Overview of installation positions and versions ....................................................................................15

6.4. Mounting the unit, fixing points .............................................................................................................16

6.5. Fitting the unit, sloping, distances ........................................................................................................17

6.6. Fitting the condensate drain .................................................................................................................17

6.7. Connecting the condensate drain – under-ceiling installation ..............................................................17

6.8. Connecting the condensate drain – floor-standing and floor-standing flat installation .........................18

6.9. Condensate drain arrangement ...........................................................................................................19

6.10. Installation of additional SK cover ........................................................................................................20

6.11. Filter types ............................................................................................................................................20

6.12. Installing optional accessories .............................................................................................................20

7. Installing controllers, changing positions, electrical connections ......................................................................21

7.1. Installing the controller .........................................................................................................................21

7.2. Permanent disballancing of supply and exhaust fans ..........................................................................21

7.3. Changing the orientation of DUPLEX Easy units .................................................................................21

7.4. Wiring diagram .....................................................................................................................................23

7.5. Equipment’s manufacturing label .........................................................................................................24

8. Important notices ..............................................................................................................................................24

2. O p e r a t i n g t h e e q u i p m e n t – C PA c o n t r o l l e r

The equipment operated using a CPA controller with touch-screen display.

Description of functions:

Controls are divided into user and servicing sections (accessible by service technicians only).

Ventilation capacity can be set in a range of 0-100 %.

Options to switch on the air reheater, air preheater and shut-off damper servo drive.

Control in manual mode or via separate weekly programs for ventilation capacity and air reheating.

Additional operating mode “Party” (a temporary increase in capacity) and “Holiday” (temporary ventilation switch-off).

An option to control ventilation automatically by external sensors (air quality, CO2, relative humidity etc.).

An option to start increased ventilation using external switches, e.g. in the bathroom or toilet.

An option to limit maximum and minimum ventilation capacity.

Displays the current room temperature and operating mode.

Alerts to the need for air filter replacement.

Display:

1. Time

2. Alerts (e.g. the need for filter replacement)

3. Date

4. Current room temperature

5. Air reheating indication (if the system includes a

reheater)

6. Ventilation capacity setting in %

7. Selected operating mode

Description of controls:

Short press – general controls and parameter settings

Long press (3 s) of the ventilation capacity symbol – quick operation on / off

Long press (5 s) at the top of the display – entering the service menu

2.1. Performance settings

When a CPA controller is used for controlling and programming, the capacity is shown (displayed) in per cents of the maximum.

The table shows approximate air flow rates (m3/h); they may vary depending on the duct network.

DUPLEX

EASY

Off

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

250

OFF

Unit responds to

sensors and external

inputs

120

155

180

200

220

240

250

300

OFF

Unit responds to

sensors and external

inputs

110

160

200

230

250

275

305

315

400

OFF

Unit responds to

sensors and external

inputs

140

200

260

300

320

350

380

400

2.2. Unit’s operating modes

The HVAC unit works according to settings made by the controller, external inputs from the bathroom, toilet or kitchen and air quality

sensors in following modes:

2.3. Description of controls

The operating modes of the unit can be changed by selecting functions and parameters in respective menus using the touch -screen

display.

The requested option (changing the function or parameter) in each menu must be confirmed by pressing the "OK" symbol or

a symbol of "arrows" to move to the next menu. If you press the symbol "Esc" option is ignored and the system automatically returns

to basic (Information) menu.

Note – in idle (display) state is the touch screen CPA glazed over, at the first touch automatically activates the backlight display, next

touch can change particular functions (see description below).

2.3.1 Basic menu

 Operating mode selection

 Ventilation capacity selection or operation start / end

 Switching on air reheating (if a reheater is installed in the system)

Displayed

mode

Description

Suitable application

(data may vary depending on national regulaitons)

“Manual mode“ – a general ventilation mode,

with ventilation provided by the unit according

to current settings.

Continuous ventilation during occupancy, with the

capacity set at outside temperatures as follows:

 Above approx. -5°C to approx. 25 m3/h/person, i.e. for

4 persons 100 m3/h, with 70 m3/h set at night.

 Below approx. -5°C to approx. 20 m3/h/person, i.e. for

4 persons 80 m3/h, with 50 m3/h set at night.

“Weekly program“ – a general ventilation

mode, with a required rate of ventilation

provided by the unit according to schedule

parameters.

“Automatic mode“ – the capacity of ventilation

is set by an active external input, i.e. the

user's request from the bathroom / toilet /

kitchen or according to an air quality, CO2,

humidity etc., if installed.

The unit switches over to these modes automatically if

current ventilation demand exceeds the capacity set in

manual mode or a weekly program.

“Ventilation run-down time“ – a temporary

ventilation mode which stops automatically

after the pre-set time has elapsed.

The unit switches over to this mode automatically after a

request from the bathroom / toilet / kitchen has expired

(if a run-down time is set).

The “Party“ mode is temporary and stops

according to the pre-set time.

A temporary mode for less frequent use of the building,

such as a party attended by a large number of people

(a request for higher ventilation capacity).

The “Holiday“ mode is temporary and stops

according to the pre-set date and time; after

that a weekly program is activated

automatically.

A temporary mode for less frequent use of the building,

such as a holiday (a unit deactivation request).

If operation is ended by setting ventilation capacity to “OFF”, the unit does not respond to an external request, i.e. switches in

the bathroom / toilet / kitchen and the air quality sensor are ignored).

If power is set to "0 %", then the fans are stopped and the unit is not ventilating. In contrast to the "OFF" state, in this "0 %" mode is

still active automatic start according to external switches.

Note – if none of buttons in submenus is pushed for a long period of time, then the CPA driver automatically switches to the main

2.3.2 “MODE“ menu (operating mode)

 Selecting a weekly program / manual mode / Party mode / Holiday mode

If more than one parameter is shown in the menu, you can switch between these by a short press; a parameter can be set by

pressing “+” and “- “ repeatedly (setting can be faster if you press and hold the symbol).

2.3.3 Menu „PROGRAM“ (weekly program)

 Setting a weekly program (time schedule) for ventilation capacity

 Setting a weekly program for starting air reheat

Changes made in a weekly program for a selected period of Mon-Sun / Mon-Fri / Sat-Sun are effected in all selected days

together, while changes made for a period of Mon / Tue / Wed / Thu / Fri / Sat / Sun are effected only for the specific selected day.

Warning:

If one or more days of the week have been set individually, parameters for these individual days will be rewritten according to

the new settings when a period of Mon-Sun / Mon-Fri / Sat-Sun is subsequently selected in adjustment mode (the pencil symbol).

2.3.4 “PARTY“ and“HOLIDAY” menu (temporary operating modes)

 Setting the required ventilation capacity of the “Party” mode in a range of 20 – 100 %

 Setting the duration of the “Party” mode in a range between 10 minutes and 5 hours

 Setting the time and date of ending the “Holiday” mode

After the “Party” mode has finished, the unit automatically returns to the operating mode selected before that; when the “Hol iday”

mode has finished, the unit automatically switches over to operating mode which is current according to a weekly program.

Note – The “Party” and “Holiday” modes can be stopped early by selecting another operating mode.

2.3.5 “REHEAT” menu (air reheat)

 Starting air reheat in manual mode

This menu is accessible only provided that an electric or hot-water air reheater is installed (selection in the service menu).

Information on air reheater operation is indicated in the basic menu by symbols and .

Note – Air reheating with an electric heater is only possible with a minimum ventilation capacity of 30 % due to a sufficient air flow

rate for cooling the heating elements.

2.4. User system settings

Using directional arrows you can move between individual user menus:

MODE / VENTILATION / REHEAT / FILTER / TIME / SETTINGS

By pressing “OK” in the “SETTINGS” menu other parameter menus become accessible:

INPUT / SWITCH / SENSOR / SENSOR / LIMIT / TEMPERATURE / DISPLAY / FIRMWARE / LANGUAGE / LANGUAGE /

LANGUAGE

WARNING – The wrong parameter settings can have a negative influence on the proper operation of the

equipment!

2.4.1 “FILTER“ menu

 Indication of the number of days left until the air filter must be replaced

 Setting the regular filter replacement interval in a range of 30 – 150 days (by 10 day periods)

 Filter replacement confirmation (a new countdown automatically starts after confirmation)

The regular filter replacement interval should be set according to the dust and pollen load of the outdoor environment.

2.4.2 “TIME” menu

 Date and time setting

 Selecting between 12 and 24 hour time format

Note – Automatic switching between summer and winter times (DST) is not supported.

2.4.3 “INPUT” menu

 An option to allow / disallow the increased ventilation capacity function.

- Binary input DI1 for connecting external voltage-free switches in bathrooms, toilets or kitchens.

 An option to allow / disallow the function of automatic ventilation control according to the concentration of the quantity be ing

measured.

- Analogue input IN1 for connecting an external sensor (sensor “S“) with a 0-10V signal output which can monitor air quality, CO2

concentration, relative humidity etc.

2.4.4 “SWITCH” menu (binary input DI1)

 Setting ventilation capacity in a range of 10 – 100 % with input DI1 closed

 Setting a function’s start delay time in a range of 0 – 300 s (in 10 second steps)

 Setting a function’s run-down time in a range of 0 – 300 s (in 10 second steps)

If a button is used the start delay time must be set to “0 s” in order for the short press of the button to be accepted, and the run-down

time must be set to a non-zero value.

2.4.5 “SENSOR“ menu (analogue input IN1)

 Setting the ventilation curve in relation to the level of the 0-10V signal from an external sensor

This function allows suitably adjusting the unit’s response (ventilation capacity) to a gradual increase in the concentration of the

quantity being measured, e.g. for economical or noise reasons.

The “inverse” setting of ventilation capacity response to the 0-10V control signal is also supported, i.e. the reverse direction of curve

A-B).

This function allows connecting also a sensor with a different output voltage range, e.g. 0-5V or 2-10V.

2.4.6 “LIMIT” menu

 Setting maximum and minimum permitted ventilation capacity limits

 An option to allow / disallow the operation OFF function (ventilation capacity = OFF)

Attention – Settings in the “LIMIT” menu subsequently affect (limit) all operating modes and parameter settings in other user

menus.

If the “Min:“ parameter is set to a non-zero value, the unit can be switched off only by a long press (3 s) of the ventilation symbol in

the basic menu or manually selecting ventilation capacity OFF (if permitted).

2.4.7 “TEMPERATURE” menu

 Setting the calibration of the internal air temperature in a range of +/- 3°C (in 0.5 °C steps)

2.4.8 “DISPLAY” menu

 Setting the display brightness and contrast (recommended values are 70 % and 50 %)

2.4.9 “LANGUAGE" menu

 Setting the menu language

Note – If the controller has been disconnected from power supply for more than 48 hours, the language is automatically set to

English when switched on again.

2.4.10 Automatic ventilation modes

If there is a discrepancy between the operating mode displayed and the one set manually by the user or a weekly program, then the

current operation of the equipment (ventilation capacity) is affected by external request via a contact or analogue input (sensor).

- A request from a switch in A request from an air quality

the bathroom / toilet / kitchen / CO2 / relative humidity sensor

2.4.11 Constant pressure in a supply line

If the unit is operated under constant pressure in the supply line (set in the service menu), then in the "FANS" and "PROGRAM"

options are available: OFF / 0% / /

The symbols "sun" and "moon" are the two possible levels of pressure required, is standard operating (daily) pressure value,

symbolizes the lower pressure value specified for night setback (e.g. due to noise).

This special mode in cooperation with the duct pressure sensor is able to provide automatic control of ventilation capacity by varying

the number of ventilated rooms in the building (e.g. central ventilation of residential house)

Note – If a problem occurs during operation, the measurement of pressure in the supply line (e.g. due to pressure sensor failure),

it is possible to cancel CS("constant sensor") in the user menu "Inputs" and to deactivate ventilation on constant pressure.

Now you can control the fans performance standard way in manual mode or by setting a weekly program (see description in chapter

2.3.1 and 2.3.2).

2.4.12 Warning messages

The controller may display some warning messages during operation which alert to the need for replacing an air filter or flat battery;

if the equipment has a defect, a warning message is shown recommending contacting the service department.

Replacing the controller's battery:

Before replacing the battery disconnect the equipment from power supply!

Then use a tool such as a flat screwdriver to apply pressure onto "lock" on the bottom of the controller and remove the front panel

with display. Now it is possible to replace the CR1632 battery and put the two parts of the controller back together. After turning it on

it is necessary to set the correct time and date.

2.4.13 Supply air reheat mode

Only external EPO-PTC series duct electric air heaters, fitted with their own thermostat to set air temperature downstream the

heater, can be connected to the equipment.

Up to two such heaters may be connected simultaneously can be connected in the following configuration:

 As a fresh air pre-heater (before the unit's inlet)

- The heater works fully automatically without being switching by the user, solely based on the temperature setting; this function

(air preheating) only works when the unit is running.

 As a reheater of air supplied into the building (it is located at the unit's outlet, downstream heat recovery)

- The heater is started by the user with the controller in manual mode or according to weekly program settings. The reheating

function is only active when the unit is running.

Heaters must be fitted and connected according to the wiring diagram and only by a person with a relevant licence.

Before the heater is put into operation, the temperature required downstream the heater must be set on the thermostat:

 For a pre-heater: from 0 °C to +4 °C

 For a reheater: between 10 and 35 °C

2.5. Operating the equipment – the CPB controller

As standard, the equipment is operated using a simple CPB controller.

Description of functions:

 Ventilation capacity setting in a range of 0-100 %.

 An option to start the air reheater.

 An option to start the shut-off damper servo drive.

 An automatic ventilation control option according to an external sensor (air quality, CO2, relative humidity etc.).

 An option to increase ventilation capacity using external switches, e.g. in the bathroom or toilet.

 An option to limit maximum and minimum ventilation capacity.

 Equipment operation indication.

Description of controls:

1. Ventilation capacity setting

2. Operation indication

3. Starting air reheating (if a reheater is installed)

2.6. Performance settings

Identical to those the table in chapter 2.1. The HVAC unit operates according to settings by the controller, the closing of external

inputs from the bathroom, toilet or kitchen, or an air quality sensor.

2.7. Description of controls

 Selecting ventilation capacity or starting / stopping operation

- Rotate the controller to set the required ventilation capacity in a range of 10–100 %.

- Ventilation is stopped by turning the controller anti-clockwise until it reaches the symbol "0" at the end position; however the

equipment still responds to external commands – see the chapter 3.3.

 Starting air reheat

- The setting applies only provided that an external air heater with its own thermostat is fitted.

- Start air reheat by pressing the button in the right hand bottom corner of the controller next to the thermometer symbol (stop by

pressing again)

Note:

- Air is reheated only when the unit is running.

- The thermostat temperature is set by the technician in charge of installing the equipment in a range between 15 and 35 °C

2.8. Limiting ventilation capacity

Removing the rotary controller provides access to other control features, the turning of which sets the minimum and maximum

ventilation capacity levels (a full range of 0-100 % is set by the manufacturer).

Description:

1. Setting of min. ventilation capacity

2. Setting of max. ventilation capacity

3. E q u i p m e n t m a i n t e n a n c e b y t h e u s e r

3.1. Basic instructions, filter replacement, maintenance and cleaning

 Maintenance involves visually checking the equipment, regularly replacing filters and cleaning the heat recovery exchanger.

 During maintenance observe the rules of personal hygiene and use protective equipment (a face mask, packaging for

contaminated filters).

 Before starting maintenance of the unit, always disconnect the equipment from power supply by unplugging the plug

from the power socket.

 During maintenance observe safety instructions contained in the manual (“Important notice”), follow the fundamental rules of

safe work and use suitable means of accessing HVAC equipment (ladders, stepladders).

3.2. G4 / F7 filter cloth replacement

 You should replace the filter cloth only provided that you do not suffer from allergic reactions to dust particles. Do not conduct

replacement when people with such a level of sensitivity are present.

 Replace the filter cloth from the filter frame in a well-ventilated area or out of doors.

 Before removing the frame with cloth, we recommend that you should have an air-tight bag (a plastic carrier bag etc.) ready to

carry the frame to a suitable area to conduct replacement and subsequently use it to dispose of the contaminated cloth, e.g. with

common waste.

 Replacement is carried out depending on the dust load of the ambient environment between every 500 and 2,000 operation

hours (usually approx. 2 - 3 months). The recommended inspection interval is indicated on the controller's display.

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