Eliwell 10*/L, 211*/L, 220*/W, 220*/R, 221*/W Series Manual
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FC BASIC
Electronic Fan-Coil Controller
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CONTENTS
1 How to use this manual........................................................................................................................................ 3
2 Introduction ............................................................................................................................................................. 4
2.1 Example of a Fan-coil installation................................................................................................................................................ 4
2.2 Available models .............................................................................................................................................................................. 5
3 Installation ................................................................................................................................................................ 7
3.1 Warnings............................................................................................................................................................................................. 7
3.2 Mounting............................................................................................................................................................................................ 7
3.3 Connection diagrams ...................................................................................................................................................................... 8
OUT1...................................................................................................................................................................................................................................................... 8
OUT2...................................................................................................................................................................................................................................................... 8
3.4 Analogue inputs................................................................................................................................................................................ 8
3.5 Digital outputs .................................................................................................................................................................................. 9
3.6 Dip switch........................................................................................................................................................................................... 9
3.6.1 Dip switch – universal models ...................................................................................................................................................................................................... 10
3.6.2 Dip switch –specific models .......................................................................................................................................................................................................... 10
4 User Interface ........................................................................................................................................................ 11
4.1 Set point dial knob ........................................................................................................................................................................ 11
4.1.1 Click-stop dial knob turning ......................................................................................................................................................................................................... 11
4.1.2 Range limitation ...............................................................................................................................................................................................................................11
4.2 Fan control slider ........................................................................................................................................................................... 12
4.3 Operating mode slider.................................................................................................................................................................. 12
4.4 Economy slider (optional)............................................................................................................................................................ 12
4.5 LED’s ..................................................................................................................................................................................................12
5 Temperature control functions ........................................................................................................................ 13
5.1 Regulation algorithm..................................................................................................................................................................... 15
5.1.1 Utility control .................................................................................................................................................................................................................................... 15
5.2 Regulation algorithm in Heating/Cooling mode....................................................................................................................16
5.2.1 REGULATION ALGORITHM IN COOL MODE ............................................................................................................................................................................ 16
5.2.2 REGULATION ALGORITHM IN HEAT MODE .............................................................................................................................................................................17
5.2.3 REGULATION ALGORITHM IN HEAT MODE WITH SUPPLEMENTARY ELECTRIC HEATERS as integrated source.................................................. 18
5.2.4 REGULATION ALGORITHM IN HEATING MODE WITH SUPPLEMENTARY AUTOMATICALLY ADJUSTING ELECTRIC HEATERS......................... 18
6 Functions................................................................................................................................................................. 20
6.1 Fan demand operation ................................................................................................................................................................. 20
6.2 Hot Start ........................................................................................................................................................................................... 20
6.3 Periodic ventilation........................................................................................................................................................................ 20
6.4 Anti-frost .......................................................................................................................................................................................... 20
6.5 Post-Ventilation.............................................................................................................................................................................. 21
6.6 Anti valve sticking .......................................................................................................................................................................... 21
6.7 Economy........................................................................................................................................................................................... 21
6.8 Window contact .............................................................................................................................................................................21
6.9 Remote Heating/Cooling.............................................................................................................................................................. 21
7 Technical features ................................................................................................................................................22
7.1 Technical data................................................................................................................................................................................. 22
7.2 Dimensions ......................................................................................................................................................................................22
7.3 Conformity declaration ................................................................................................................................................................22
8 Use of the device.................................................................................................................................................. 23
8.1 Permitted use.................................................................................................................................................................................. 23
9 Responsibility and residual risks....................................................................................................................... 23
10 DISCLAIMER ........................................................................................................................................................... 23
11 Analitic Index......................................................................................................................................................... 24
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Call-outs
Cross references
Highlighted icons:
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1 HOW TO USE THIS MANUAL
In order to refer to the manual quickly and easily, customers may find the following useful:
Callout column:
Callouts on the topics described are placed to the left of the text to allow the user to find the required information
quickly.
Cross references:
All the words in italics are listed in the index with a reference to the page where they are described in more detail;
the text below serves as an example:
”activation of the alarm stops the compressors”
The italics indicate that under Compressors in the index there is a reference to the page where compressors are described
in more detail.
If the online Help on the PC is used, the words in italics become proper hyperlinks (automatic links activated by a click of
the mouse ) that connect the different sections in the manual and allow you to navigate through the document.
Some parts of the text are highlighted in the callout column using icons with the following meanings:
Note: draws attention to a specific topic that users should take into account.
Tip: highlights a suggestion that helps users to understand and use the information on the topic described.
Attention! : highlights
1. information that may damage the system or place persons, equipment, data, etc at risk
if
not known. These sections must always be read prior to use.
2. a specific topic that users should take into account so that the system does not
malfunction or is used improperly.
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Interface F1
Interface F2
2 INTRODUCTION
FC BASIC is an electronic controller for 2-4 pipe fan-coils. It controls the fan and the valves that regulate water flow and
can also control a battery of electric heaters for winter operation.
A compact wall-mounted version is available which is easy to install and to wire.
FC Basic
Interface F1
Interface F2
2 pipe installation
A knob on the panel is used to adjust the set point, and two slider switches are used to set
a) the mode
• for Interface F1 (heating/off/cooling)
• for Interface F2 (on/off)
b) the fan speed (low/medium/high).
Some models also feature a remote Heating/cooling control and an economy function.
2.1 Example of a Fan-coil installation
Typical 2 and 4 pipe fan-coil installations are illustrated below:
Additional
electric heater
Water battery
2 pipe fan-coil
Motorised valve
Hot and cold water supply
Hot and cold water return
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4 pipe installation
4 pipe fan-coil
Fan control
Finned battery
Valve
Electric heaters
Water battery
Hot water supply
Hot water return
Water battery
Cold water supply
Cold water return
Motorised valve
DELIVERY FAN:
The fan is located just before the finned battery; and it takes back the room air via the inlet air duct.
The air flows across the batteries before being released into the room.
If the control is installed on the fan coil unit itself, an additional return air sensor, positioned in the flow of inlet air detects
the room temperature. In this case, the temperature measurement is valid only if the flow of inlet air is sufficient to nullify
or reduce stratification phenomena in the room.
WATER BATTERY – MOTORISED VALVE
Consists of a water-air exchanger, located internally, across which the inlet air travels.
Hot or cold water, produced by a boiler or a chiller, flows through the exchanger.
There may be a dual battery supply circuit (4-pipes); the 4-pipe configuration may be set up with two motorised valves and
two independent exchangers, or with a single exchanger (2-pipes). In some cases it is important to be able to measure the
temperature of the water supplied to the battery, which may be done with a water sensor located downstream of the
battery’s return and the valve.
(see Anti valve sticking)
ELECTRIC HEATERS
The electric battery may be used to heat air in 2-pipe systems when there is only cold water available (electric heaters in
regulation), or to assist heating using water when room temperature is far from setpoint (2
nd
step electric heaters in
integration).
2.2 Available models
14 versions of FC Basic are available with different operating features, summed up in the table below:
Table of models
Product code explanation:
Example:
210/L : 2-pipe fan coil + H/Off/C mode slider (Interface F1) + electric heater present + local mode selection
U22E/R : Universal (2- or 4-pipe fan coil) + On/Off mode slider (Interface F2) + electric heater presence selectable +
Economy switch + remote H/C mode selection
U22N/R : Universal (2- or 4-pipe fan coil) + On/Off mode slider (Interface F2) + electric heater presence selectable +
Economy Function (available on terminals*)
*see electrical diagram, terminals 21-22
Position Character Description
1st 2 2-pipe fan coil system only
4 4-pipe fan coil system only
U Universal model, selectable 2- or 4-pipe fan coil system (Dip switch)
2nd 1 Mode slider switch Heating/Off/Cooling (Interface F1)
2 Mode slider switch On/Off (Interface F2)
3rd 0 Electric heater not present
1 Electric heater present
2 Electric heater presence selectable (Dip switch)
3 INTEGRATED AND AUTOMATICALLY ADJUSTING electric heater
4th E Economy switch present on top of controller
N Ecnomy Function, available omn terminals
5th /L Local Heating/Cooling mode selection (local slider switch)
/R Remote Heating/Cooling mode selection (external switch)
/W Water sensor use requested
+ remote H/C mode selection
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Remote air sensor and water sensor
Remote air sensor and water sensor:
Temperature sensor NTC, plastic cap 7x25, reinforced insulation PVC cable length=1,5m
Temperature sensor NTC, metal cap 6x40, reinforced insulationPVC cable length=1,5m
Product models selection guide:
2 pipe fan coil model ● ● ● ● ● ● ● ● ● ● ●
4 pipe fan coil model ● ● ● ● ● ● ●
Universal use model ● ● ● ●
Mode Slider Interface F1 ● ● ● ●
Interface F2 ● ● ● ● ● ● ● ● ● ●
Water sensor ● ● ● ● ● ● ● ● ● ●
Remote H/C ● ● ● ●
Manual change-over ● ● ● ● ● ● ● ●
Automatic change-over ● ● ● ● ● ●
Outputs (water valve) H or C ● ● ● ● ● ● x x x ● ●
H and C ● ● ● x x x
Electrical Resistors Electric H ● ● ● x x x ● ●
Thermo-regulator H/C ● ● ● ● Y ● ● ● ● Y ●
Dead Zone Y ● Y ● ●
Hot Start driver Timer ● ● ● ● ● ● ● ● ● ● ●
Temperature ● ● ● ● ● ● ● ●
Window contact input Frost mode ● ● ● ● ● ● ● ●
= E for models with additional ECONOMY switch on top of controller
= E for models with additional ECONOMY Function, available on terminals: clean contact or under voltage
(see electrical diagram, terminals 21-22)
x : designation of output use depends on Dip switch 1, 2 and 3 position
Y : designation of function use depends on Dip switch 3 position
PLEASE NOTE:
Water Probe mandatory for FC Basic 2 pipes model with
electrical heaters not present
electrical heaters present in integration mode
Models
210*/L
211*/L
220*/W
220*/R
221*/W
221*/R
410*/L
420*/W
420*/R
U12*/L
U22*/W
U22*/R
223*/W
U23*/W
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3 INSTALLATION
The wall-mounted version of FC Basic consists of two parts:
• the first part (connector base plate) contains connectors only, and is anchored to the wall;
• the second part (main interface) contains all electronics and controls, and can easily be fitted onto the first part.
This set-up permits easy installation with no danger of damage to electronic components.
To separate the connector base plate from the main interface, use a tiny screwdriver, insert the screwdriver into the
appropriate holes (at the side of the housing), wrest gently till both parts are separated.
FC Basic can also be installed inside the fan-coil unit. An additional remote air sensor needs to be mounted in the return
air flow on the unit.
3.1 Warnings
INSTALLATION MUST BE CARRIED OUT BY QUALIFIED PERSONNEL ONLY!
Due to the numerous functions and versions of controllers available, models offer different functions and options.
The description of the controllers in this document is general and is provided for information only.
For detailed information on the functions available, please contact an authorized dealer or the Sales Office of Eliwell.
Before installation, always read the labels fitted on the device.
Parts which are under hazardous voltage must not be accessible under regular operating conditions.
The device must be adequately protected from water and dust.
Do not install the control in environments with the following characteristics:
• Relative humidity (non-condensing) over 90%,
• Strong vibrations or shocks
• Ongoing exposure to jets of water under pressure
• Exposure to aggressive, polluting atmospheric agents which could cause corrosion or oxidation (such as sulphuric or
ammoniac substances, salt mists, fumes)
• Presence of considerable magnetic or radio interference (such as transmission antennas)
• Exposure to direct sunlight or atmospheric agents.
When connecting up controls with one another, with accessories, electric loads or other devices, take great care in relation
to the following:
• Incorrect connection with the power supply voltage could damage the control.
• Use of wire terminals which are appropriate for the terminals. Slacken the terminal screw, insert the wire terminal,
and then tighten the screw again. Check that it is tight by pulling gently on the wire. Do not use an automatic
screwing machine (or use with a torque setting of less than 50 N*cm)
• Possible electromagnetic interference: wire up low voltage utilities separately from high voltage utilities. Keep
temperature sensor cables and digital inputs separate from cables with inductive loads or power cables as much as
possible.
• Never wire power cables and temperature sensor cables through the same trunking/conduit. The remote sensor wires
must be kept far away from power devices (such as power relays). Make sure the route travelled by these cables is as
short as possible.
• Never apply loads to outputs, greater than those specified herein.
• Observe connection diagrams carefully when connecting up loads.
3.2 Mounting
The controller should be mounted in a room at a location which:
! Ensures easy access for operation
! Is free of curtains, cupboards, shelves, etc…
! Ensure free circulation of air
! Is free of direct sunlight
! Is free of draft (e.g. open window or door)
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Connections
A
! Is not directly affected by a heating or cooling source
! Is not mounted on an outer wall
! Is mounted on the wall at approx. 1,5 m from the floor Mounting
3.3 Connection diagrams
Utilities must be connected up to the FC Basic as shown below:
PLEASE NOTE: terminals 21-22 available on /N models.
Clean contact input or under voltage, depending on model (see label).
OUTPUT
2-pipe only 2-pipe with electric heater 4-pipe
OUT1
OUT2
PPLICATION
Not used Electric heater Cooling valve
Heating/Cooling valve Heating/Cooling valve
Heating valve
3.4 Analogue inputs
There are three analogue inputs available:
index Description sensor range meas. range
ST1 NTC sensor input. room temperature (built-in, always
available)
This is the temperature control sensor. It is always
integrated on the PCB.
The selection to use the local or remote sensor is done
through dip switch:
• DIP 6 = universal models
• DIP 4 = specific models
-->see dip switch table
ST2 NTC sensor input. air temperature:
This is the temperature control sensor. It is always
integrated on the PCB, but can be an additional remote
sensor, positioned in the return air flow.
The selection to use the local or remote sensor is done
through dip switch:
• DIP 6 = universal models
• DIP 4 = specific models
-->see dip switch table
ST3 NTC sensor input water temperature:
This is the sensor used to detect water temperature and
it should always be mounted downstream of the valve.
It is involved in consent and operating functions.
This input is also used for models with Remote
Heating/Cooling switch and on all other models for the
Window contact input (connection diagrams)
PLEASE NOTE: ST2 & ST3 are NOT included in the product package.
-50C° 110C° -10C° 70C°
-50C° 110C° -10C° 70C°
-50C° 110C° -10C° 70C°
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