Komfovent KOMPAKT Recu Bedienungsanleitung

KOMPAKT RECU

Series Air Handling Units with C2 Control System

Electrical Installation and Operation Manual

1. INSTALLATION MANUAL .....................4

1.1. Air Handling Units Sections Connection .....................4

1.2. Electric Power Supply Connection .....................4

1.3. External Elements Connection .....................5

1.4. Temperature Sensors Installation .....................7

1.5. Control Panel Installation Requirements .....................7

1.6. Control Panel Connection .....................7

2. OPERATION MANUAL .....................8

2.1. Unit Control .....................8

2.2. Switching on the Unit .....................9

2.3. Control Panel Indication .....................9

2.4. Unit Programmable Settings ...................10

2.5. Other Control Functions ...................13

2.6. Troubleshooting ...................14

Unit Functional Diagrams ...................15

Specication ...................16

Wiring Diagrams ...................17

Table of Contents

Installation manual

1. INSTALLATION MANUAL

Installationworkscanbeperformedonlybythespecialiststhathaverequiredqualication.Duringinstallation

followingrequirementsmustbefullled:

It is recommended to lay control cables separately from power cables, or use

shielded cables. In such case it is necessary to earth cable shielding!

1.1. Air Handling Units Sections Connection

After unit parts have been connected together (if the unit consists of several sections), unit sections connecting

cables and wires are connected.

Connector connection is performed strictly according to numeration given in wir-

ing diagram, or adequate markings (see unit electric scheme).

When disconnecting unit sections, do not pull by connecting wires and cables!

1.2. Electric Power Supply Connection

If the air handling unit voltage is ~230V; 50 Hz it is necessary to install the socket with grounding of correspond-

ing capacity. If the voltage is ~400V; 50 Hz, the cable of electrical power supply is connected to the power supply

terminal blocks, which are located on the unit’s outside wall. It is necessary to connect earthing! Types of cables

ofconnectionofelectricalpowersupplyarespeciedin1.2Table:

1.2 Table

Electrical Power Supply Cable Types

Diagram No. Type of Air Handling Unit Cable Type

1RECU-400H(V)E, RECU-400H(V)W,RECU-700H(V)E, RECU-700H(V)W,

RECU-900H(V)W, RECU-1200H(V)W, RECU-1600H(V)W, RECU-2000HW 3 x 1,5 mm2(Cu)

RECU-900H(V)E 5 x 1,5 mm2(Cu

RECU-1200H(V)E 5 x 2,5 mm2(Cu)

RECU-1600H(V)E 5 x 6,0 mm2(Cu)

RECU-2000HE 5 x 10,0 mm2(Cu)

3RECU-3000HW; RECU-4000HW 5 x 1,5 mm2(Cu)

RECU-3000HE; RECU-4000HE 5 x 10,0 mm2(Cu)

Air handling units designed for 400V AC supply voltage must be connected to the

stationaryinstallationbysolidcable.Allunitswithairowupto2000m3/h (inclu-

sively) must be connected through circuit breaker with max. 30mA current leakage

protection, and units from 3000 m3/h - with 300mA current leakage protection.

Before connecting unit to the electrical power supply, it is necessary to check

whether earthing has been installed properly.

Installation manual

1.3. External Elements Connection

On the air handling unit wall it is provided connection box. To the terminals which are inside the box (1.3 Pic-

ture) all external control elements are connected.

External elements connection diagram is given in the 1.3a Picture.

1.3 Picture

Connection Board C2-P1

The air handling unit is equipped with season (WINTER / SUMMER) switch, located on the outside unit‘s wall

near external connections board.

Applicabilityoftheswitch:

• Intheairhandlingunitswithanelectricalheater,duringwintertimeheatingfunctionisswitchedon(posi-

tion I) and during summertime for economy of the electric energy is switched off (position 0).

• Intheairhandlingunitswithhotwaterairheater,thecirculationpumpisswitchedon(positionI) or during

summertime switched off (position 0).

1.3a Picture

Control System External Elements Connection Diagram

1Used only in the units with hot water air heater

2Used only in the units with an external separate hot water air heater

* Use electric actuators intended for direct current supply

Installation manual

Control contact.

Do not connect voltage!

Normally closed contact.

Do not connect voltage!

1.4. Temperature Sensors Installation

Supply air temperature sensor is mounted in the air duct in a projected place for it; after heater or cooler sec-

tion (if provided). The minimal distance from the air vent of the unit up to the sensor should be not less than double

diameter of the circular connection or a diagonal of rectangular connection.

Water temperature sensor is mounted on the return water pipe, as close as possible to the heater case. It is

recommended that the sensor would be thermo insulated!

Temperature sensors and control panel connections must be sealed with PVC

isolation tape.

1.5. Control Panel Installation Requirements

1. Controlpanelmustbeinstalledintheroomundergivenfollowingconditions:

1.1. ambient temperature range 00C ... 400C;

1.2. relative humidity limits 20% … 80%;

1.3. protection must be ensured from accidentally vertically falling water drops (IP X2).

2. Installation height must be not less than 0,6m from the ground.

3. Control panel connection is projected through the hole in its backside.

4. Controlpanelisxedafterscrewingtwoholesonthefasteningsurface.

1.6. Control Panel Connection

Panel connection terminals position is shown in the 1.6 picture (on the right side).

Control panel is connected to the connection box terminals (see 1.3a Picture). The length of the cable connec-

tingthecontrolpanelwiththeunitshouldnotexceed20m.Cabletypeisspeciedinunitwiringdiagram.

1.6 Picture

Control Panel Diagram

Control panel connection and other cable thicknesses are specied in the wiring

diagram!

Installation manual

Operation manual

2. OPERATION MANUAL

2.1. Unit Control

Air handling units control system ensures control of the physical processes that are taking place inside the air

handlingunit.Automaticcontrolsystemconsistsof:

• theC2controllerwhichisintegratedintoacontrolpanel;

• fusesboardandtransitionalcontrolboardmountedinsidetheunit;

• externalconnectionsboardforautomationelementswhichislocatedontheoutsideunit’swall;

• damperactuators;

• pressureandtemperaturesensors.

The control panel (2.1 Picture) can be installed in any user-friendly place and is intended for remote control of

air handling unit. Control panel display allows monitoring supply air temperature, unit operation modes and other.

Controller light signals indicate unit operation modes and failures. Air temperature, ventilation intensity, operation

modes and other parameters are set by the touch sensitive buttons.

2.1 Picture

General View of the Control Panel

Touch sensitive buttons located on the panel mean:

start up and shut down of the air handling unit / return to previous menu window;

entrytoparameterschangemenu/setparametersconrmation;

navigation in the menu / parameters value change.

Operation manual

2.2. Switching on the Unit

After connecting the unit to the electrical power supply, on the control panel LCD displays start-up window, this

is shown in the Picture 2.3.

Unit is switched on (off) by touching and holding buttonfor4secondstillsoundconrmstheaction.After

switching on, unit will start operating after short delay (about 60 seconds), until air dampers open up, and fans

start running. Unit operation is indicated in the control panel by ventilation intensity and LED signals (see further).

Do not switch on the unit without connected earthing! Make sure, whether all unit

sections are tightly interconnected.

2.3. Control Panel Indication

The information is presented to the user on the display of a control panel by means of numbers and symbols,

also by two colour LED signals.

Controller panel display start-up window is shown in the 2.3 Picture.

2.3 Picture

Control Panel Start-Up Window

Note: If after powering the unit up and pressing the start up button the sign “Stop” is lit on the control panel display

and the unit does not start it is necessary to follow the troubleshooting table (see below).

Light Diodes Indication:

1. No LED signal indication on the panel – unit has been switched off.

2. LED shines steady green and information is shown – unit is switched on.

3. Automatic mode symbol “A“ is shown on the panel, while green LED shines – unit is operating in auto-

matic mode according to weekly schedule.

4. LED blinks red and green and information is shown – see 2.6 chapter.

5. LED shines steady red and “Stop“ message is shown – emergency unit shut down (see 2.6 chapter).

6. Nothing is showing on the control panel - unit does not have electric power supply or control panel

connection cable is damaged.

Ventilation intensity level

Supply air temperature

Unit operation indication LED

2.4. Unit Programmable Settings

By soft touching button the parameters menu is entered. Menu window is selected by buttons ,

(see further description). When menu window is selected, touch for selecting desirable parameters and se-

lect the value with , .Toconrmthechangestouch .

To return to previous menu or to start-up window touch button.

Note: If touch sensitive buttons are inactive for 2 minutes, start-up window is shown.

1. Ventilation intensity setting

Ventilation intensity level choosing possibility is provided in the unit.

To set ventilation rate, select menu window with , buttons:

– ventilation intensity level

Button lets to enter the menu of ventilation intensity adjustment, and by buttons , the necessary

level from 1 up to 10(insomeunitsadjustmentoflevelsonlyfrom1upto3isprovided)canbechosen.Toconrm

the selected level, press button.

Note: After setting on the control panel maximal ventilation intensity level (10), on the start-up window is shown

only digit 9.

Operation manual

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