Daikin ECFWEB6, ECFWER6, ECFWDER6, ECFWDEB6 User Manual

ECFWEB6 ECFWER6 ECFWDER6

INSTALLATION AND

OPERATION MANUAL

Microprocessor controller for fan coils

3 4 5 6 7 8 9

34 5 6 789

16.5°C 28.5°C

22.5°C

6 7 8

91011 12

130

9.3

4 5

7 86

105

2 x (ø5x8)

17.7

109

13 16

14 17

15 18

ECFWEB6 ECFWER6 ECFWDER6

ABLE OF CONTENTS

Main features .................................................................1

Main functions and equipment....................................... 1

Packing list.............................................................. 2

Control panel ..........................................................2

Temperature range .................................................2

LED indicators ........................................................2

Description of the operating modes........................ 3

Technical data and operation limits ........................5

Possible conﬁgurations.................................................. 7

Before installation ..........................................................9

ECFWEB6 installation instructions ................................9

Installation on the support and on the fan coil........9

ECFWER6 + ECFWDER6 installation instructions...... 10

Installation ............................................................10

Setting the microswitches ............................................10

Installing the air and water temperature probes...........11

Position of the air temperature probe ...................11

Position of the water temperature probe...............11

Installing the power contactor ......................................12

Wiring diagrams...........................................................12

Wiring parts table .................................................12

Read this manual attentively before starting up the unit. Do not throw it away. Keep it in your ﬁles for future reference.

Improper installation or attachment of equipment or accessories could result in electric chock, short-circuit, leaks, ﬁre or other damage to the equipment. Be sure only to use accessories made by Daikin which are speciﬁcally designed for the use with the equipment and have them installed by a professional.

If unsure of installation procedures or use, always contact your Daikin dealer for advice and information.

Microprocessor controller

for fan coils

Page

Installation and

operation manual

If options need to be installed, always refer to the relevant manual of the option for additional information.

AIN FEATURES

This controller is designed to control Daikin fan coil units.

■

ECFWEB6 Built-in for FWV and FWL

■

ECFWER6 Remote for FWV, FWL and FWM

■

ECFWDER6 Remote for FWD

AIN FUNCTIONS AND EQUIPMENT

■

Regulation of the air temperature via automatic variation of the fan speed.

■

Regulation of the air temperature via ON/OFF switch of the fan at a ﬁxed speed.

■

Time function (only for ECFWEB6).

■

Regulation of the air temperature via control of ON/OFF valves (on 2-pipe or 4-pipe systems).

■

Control of the electric heater as integration or replacement of a heating circuit with delayed fan stopping.

■

Cooling/Heating switching mode in following way:

■

Manual — on the controller

■

Manual — on the remote switch

■

Automatic — based on the water temperature

■

Automatic — based on the air temperature

■

The controller is also equipped with:

■

Free contacts for external enabling signal (i.e.: reed contact, remote ON/OFF switch, proximity contact etc.) that may enable or disable the unit. (Closed contact = OFF; open contact= ON)

■

Free contacts for the centralized cooling/heating switching system. (Closed contact = cooling, open contact = heating)

■

Water temperature probe (white)

■

Air temperature probe (black)

Installation and operation manual

4PW17551-1

ECFWEB6+ECFWER6+ECFWDER6 Microprocessor controller for fan coils

Part

(See ﬁgure 1)

ECFWEB6 ECFWER6 ECFWDER6

111

integrated in controller

Packing list

Controller 1 1 1

Manual 1 1 1

Cover plate left 1 0 0

Cover plate right 1 0 0

Support 1 0 0

Accessory bag

•wire clamp

•2 screws

•probe holder

Water probe 1 1 1

Air probe 1

Power interface 0 0 1

Control panel

Refer to ﬁgure 2 to catch the look of the controller.

Operation mode selector, to turn the fan coil on and off, to choose the type of operating mode (automatic or at ﬁxed speed) and to control the electric heating.

Operation LED indicating that cooling operation mode is active (blue).

Cooling/Heating selector.

Operation LED indicating that heating operation mode is active (red).

Thermostat to control the room temperature.

Temperature range

The print around the selector switch of the thermostat represents temperature ranges from minimum, over comfort, to maximum. The ranges refer to different temperatures, depending on the selected operating mode as illustrated in the ﬁgure below.

Cooling mode Heating mode

25°C

19°C31°C

20°C

14°C26°C

When automatic cooling/heating switching mode based on the air temperature is running, the temperature of the thermostat is as illustrated in ﬁgure 3.

LED indicators

The various combinations in which the LED lights up indicate procedures and operating status of the controller.

■

Blue LED lit

running. The unit is running or waiting for an input from the thermostat.

■

Red LED lit

running. The unit is running or waiting for an input from the thermostat.

■

Blue and red LEDs lit

receive an enabling signal. The water temperature does not enable the air cooling or heating functions (see "Automatic cooling/heating switching mode

based on the water temperature" on page 3) or the

temperature of the air is within the neutral zone (see

"Automatic cooling/heating switching mode based on the air temperature" on page 4).

NOTE

■

Double ﬂashing of the blue LED

thermostat has sent an input to the unit for starting cooling mode. It ﬂashes when the room temperature and the set cooling temperature are the same.

■

Double ﬂashing of the red LED

thermostat has sent an input to the unit for starting heating mode. It ﬂashes when the room temperature and the set heating temperature are the same.

The temperature of the air in the room can be seen at any time on the thermostat range turning the knob of the thermostat.

indicates that the cooling mode is

indicates that the heating mode is

indicates that the unit did not

To determine which operating mode is selected when an enabling signal is missing (blue and red LEDs are both lit), turn the knob of the thermostat until one of the two LEDs starts to ﬂash and then remains lit. This LED points out the selected operating mode. Once the operating mode has been established, turn the thermostat back to the desired position.

means that the

ECFWEB6+ECFWER6+ECFWDER6 Microprocessor controller for fan coils

4PW17551-1

Installation and operation manual

Description of the operating modes

Room thermostat with air temperature control

With the speed selector switch turned to , the fan speed is switched automatically based on the difference between the temperature set on the thermostat and the room temperature.

With the selector switch turned to , , or the ventilation mode is of the ON/OFF type.

Room thermostat with ON/OFF valve control for 2-pipe systems

With the speed selector switch turned to , the fan speed is switched automatically based on the difference between the temperature set on the thermostat and the room temperature.

With the selector switch turned to , , or the ventilation mode is of the ON/OFF type.

The water valve is shut off once the desired temperature is reached

In cooling mode the fan continues at minimum speed, even after the valve of the cooling circuit has shut off.

In heating mode the fan is stopped as soon as the valve of the heating circuit is shut off.

Room thermostat with ON/OFF valve control for 4-pipe systems

Manual built-in cooling/heating switching mode

The controller is pre-arranged to operate manually in the desired mode. It is enabled by pressing the selector key. The blue (cooling) and red (heating) LEDs point out the selected operating mode.

Manual remote cooling/heating switching mode

The controller is pre-arranged to operate manually and remotely in the desired mode. This mode is carried out by connecting the system to a remote switch. Use the special terminals on the electronic PCB of the controller.

Automatic cooling/heating switching mode based on the water temperature

The controller automatically selects the cooling or heating mode based on the temperature of the water and according to the following logic:

Water temperature <17°C — cooling mode is set Water temperature >37°C — heating mode is set Water temperature between 17°C and 37°C — the system is disabled

For switching based on water temperature, the supplied water probe needs to be installed.

See chapter "Position of the water temperature

probe" on page 11 for installation of the water

temperature probe.

With the speed selector switch turned to , the fan speed is switched automatically based on the difference between the temperature set on the thermostat and the room temperature.

With the selector switch turned to , , or the ventilation mode is of the ON/OFF type.

The water valve is shut off once the desired temperature is reached

In cooling mode the fan continues at minimum speed even after the valve of the cooling circuit has shut off.

In heating mode the fan is stopped as soon the valve of the heating circuit is shut off.

Installation and operation manual

4PW17551-1

In this type of conﬁguration, the input for the centralised cooling/heating switching mode is disabled.

ECFWEB6+ECFWER6+ECFWDER6 Microprocessor controller for fan coils

Automatic cooling/heating switching mode

based on the air temperature

The controller selects the cooling or heating mode based on the temperature of the air compared to a neutral temperature interval (neutral zone) centred on the set value of the thermostat.

When this function is selected, the temperature range of the thermostat refers to the values indicated in ﬁgure 3, both for cooling and for heating.

In this type of conﬁguration, the input for the centralised cooling/heating switching mode is disabled.

Selecting the range of the neutral zone

The neutral zone is a parameter related to the function "automatic cooling/heating switching mode based on the air temperature".

The neutral zone is a temperature interval astride the set temperature. When the air is warmer than the top limit of the neutral zone, the cooling mode is selected.

When the air is cooler than the lower limit of the neutral zone, the heating mode is selected.

The following ﬁgure illustrates an example with:

Neutral zone = 5°C Set room air temperature = 21°C For temperatures above 23.5°C the cooling operating mode is selected For temperatures below 18.5°C the heating operating mode is selected.

Neutral zone

<18.5°C =

>23.5°C =

°C21°C

On the controller, the range of the neutral zone is 2°C or 5°C and can be deﬁned by setting microswitch number 4 (see "Setting the microswitches" on page 10).

Position of microswitch no. 4

Range of the neutral zone

ON 2°C

OFF 5°C

Time function

The time function is used to start the fan at medium speed for 2 minutes at regular intervals (every 10 minutes) once the room temperature has reached the level as set on the thermostat. It ensures the constant monitoring of the air temperature in the room. It is only used in summer and only if the enabling signal of the water temperature probe is positive.

The time function cycle is also executed when the controller is powered (ﬁrst start-up or voltage reset).

The thermostat and the operating mode selector switch are disabled when the time function is in use.

The time function can be used only for units without valves and only in summer.

The time function is not foreseen for the ECFWER6 and ECFWDER6 versions.

ECFWEB6+ECFWER6+ECFWDER6 Microprocessor controller for fan coils

4PW17551-1

Installation and operation manual

Electric heater control

The thermostat controls an electric heater as integration or replacement of a hot water heating system.

When the operating mode selector switch is turned to and the electric heater is turned on, the fan runs continuously at medium speed.

For safety reasons, the fan is turned off 2 minutes after the electric heater is turned off, whether this occurs when the desired air temperature is reached or when the electric heater is turned off manually using the operating mode selector.

■

During operation of the electric heater, the fan runs at medium speed only.

■

During heating operation of 2-pipe system units equipped with an electric heater and motorised valves, only the electric heater works.

Fan coil enabling system based on the water temperature

The controller starts the unit according to the following logic based on the water temperature that is detected by a dedicated probe:

■

Water temperature <17°C: Cooling mode enabling signal

■

Water temperature >37°C: Heating mode enabling signal

In installations with electric heater control, the same probe sends the enabling signal for the electric heater to turn on according to the following logic:

■

Water temperature <37°C: Additional electric heater enabling signal. (This enabling signal is sent only if the operating mode selector switch is turned

to ).

■

Water temperature >39°C: The additional electric heater is switched off.

For switching based on water temperature, the supplied water probe needs to be installed.

See "Position of the water temperature probe"

on page 11 for installation of the water

temperature probe.

Technical data and operation limits

Warehouse temperatures –40°C~85°C Operation temperatures 0°C~40°C Accuracy of temperature probes ±0.5°C Maximum current on terminal V1, V2

and V3 (fan speed) Maximum current on terminal R and

V (valve and electric heater)

1.1 A

0.15 A

Installation and operation manual

4PW17551-1

ECFWEB6+ECFWER6+ECFWDER6 Microprocessor controller for fan coils

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