Lennox EMEA Inalto Service manual

www.lennoxemea.com
INSTALLATION, USE AND MAINTENANCE
MANUAL
MODBUS
MODBUS-IOM-0822-EN

Product type
Infrared remote or wall interface control for 2 or 4 pipe systems
and additional electric heater.
MAIN FUNCTION:
• On-o󰀨 valves control, modulating (0-10Vdc) or 3 speed fan motor control,
on/o󰀨 electric heater control.
• Water temperature sensors for soft start function in heating and
cooling mode; heating and cooling automatic change over; alarm.
• Intake air sensor.
• System programming with dip-switch.
• MODbus communication protocol.
• Master-slave function (only system without MODbus supervision).
• Installation on the unit for print circuit board and receiver.
• Display LCD function control with infrared remote or wall interface.
Technical data
Power supply: 230Vca ±10% 50Hz
Contact capacity - 3 speed motor out: 3 (1,5) A @ 230Vca
Contact capacity - valves and
electric heater on/o󰀨 out: 0,5 A @ 230Vca
Sensor type: NTC 50 K @ 25°C
Di󰀨erential: 1°C
Resolution: 1°C
Room temperature regulation range: 10°C .. 30°C
Product and function description
INFRARED REMOTE CONTROL REGULATION
On and o󰀨 unit;
room temperature setting;
fan speed min-med-max and auto (fan speed automatic control as the desired room temperature approaches ).
Send button: send to other units all the settings on the infrared remote control. With this function is possible use a single infrared remote control
for all unit regulation.
Function mode: automatic heating/cooling, heating, cooling and fan only.
Clock and daily timer for timed unit operation.
WALL INTERFACE RWI-ECM 1-2 REGULATION
See the specic manual for this product
PRINT CIRCUIT BOARD CONTROL
Water temperature sensor and limit function
Every print circuit board is supplyed with 2 or 3 temperature sensor: depend to the system.
T1
Air temperature sensor: is install on the intake air unit.
T2
Water temperature sensor for mode function: is install in the pipe before the valve to the water inlet:
Heating: water temperature > 32°C
Cooling: water temperature < 15°C
INFRARED REMOTE
CONTROL
INFRARED
RECEIVER
PRINT CIRCUIT
BOARD
OR WALL
CONTROL
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MODBUS-IOM-0822-EN

T3
Water temperature sensor for fan activation: is install in the water coil:
Heating and cooling fan start automatic control (2 pipe system)
Heating fan start automatic control (4 pipe system )
Heating: water temperature > 32°C fan on
Cooling: water temperature < 15°C fan on
Antifreeze coil (4°C) and heating maximum (72°C) temperature control
Other input/output
Alarm input
Window or remote on-off or occupied room sensor input
Regulation
2 or 3 way on/off valves control
On/off electric heater control as water integration or substitution
Valves control (fan continuously running) or valves and fan control (thermostatic control on valves and fan).
Automatic change over heating-cooling.
4 pipe system or 2 pipe system with electric heater neutral zone control
Stratification cycle: air mixing in heating mode.
Modulating fan motor control (0-10VDC).
INFRARED RECEIVER
Receiver with led function: operation and alarm; button with manual function and heating/cooling selection in case of the infrared remote control broken.
Applications
Air temperature control where an infrared remote control is required for easy installation and for easy setting for all function.
As an alternative to the infrared remote control, can be use the wall interface.
Suitable for:
• 2 pipe system + 1 valve
• 4 pipe system + 2 valves
• 2 pipe system + 1 valve + electric heater integration: heating with water coil and electric heater; cooling with water coil
• 2 pipe system + 1 valve + electric heater substitution: heating with electric heater and cooling with water coil
Receiver sample installation:
MODBUS-IOM-0822-EN
•4•

General wiring diagrams
2 PIPE SYSTEM WITH 3 SPEED FAN
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4 PIPE SYSTEM WITH 3 SPEED FAN
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2 PIPE SYSTEM + ELECTRIC HEATER WITH 3 SPEED FAN
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2 PIPE SYSTEM WITH MODULATING FAN (0-10)
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4 PIPE SYSTEM WITH MODULATING FAN (0-10)
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MODBUS-IOM-0822-EN

Master-Slave function
The master-slave function is only possible if MODbus supervision is not provided on the system because the connection used on the print circuit board is the
same as for the MODbus communication.
The master-slave function is done with connections and settings of the dip switches on the print circuit board
One master and up to 59 slaves.
The information that is transferred from the master board to the slave boards are:
• ON / OFF
• Operating mode (heating-cooling-fan only)
• Fan speed (max-med-min-auto)
• Room temperature setting (set-point)
NOTE
1) The window contact function is not transferred from the master board to the slave boards
2) The information is transferred from the master board to the slave boards at each:
• Remote control or wall interface command.
• Cut o󰀨 the power supply.
3) The slave boards can be managed locally with the infrared remote control, but in any case resume the commands from the master board at each:
• Command given to the master board by remote control or wall interface
• Cut o󰀨 the power supply.
4) The commands given to each individual slave board do not pass to the master board and neither to the other slave boards.
Master/Slave samples:
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•10•

Master/slave system: wiring diagram and settings
•11•
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MODbus supervision general indication
RS485 network installation
1. Cable denition
Use shielded twisted cables for RS485 network consists of one twisted pairs and screens with the following characteristics:
- Impedance 120 Ohm at 1 MHZ
- Max capacity 50pF/m
Example:
- Belden 3106A
- Belden 9841
2. Wiring scheme
Connect all print circuit board by “daisy chain” topology.
Master/Slave Vers. 2015-0
LIGHT/LIGHT-ECM
Installazione di una rete RS485:
indicazioni generali da seguire per il corretto funzionamento
1. Definizione del cavo
Cavo schermato una o due coppie - 120ȍa 1Mhz,
costituito da 24# coppie di fili intrecciati. Ogni coppia è
rivestita di materiale conduttivo + un rivestimento
globale esterno in PVC flessibile idoneo per uso
interno.
Esempi:
i. Cavo di trasmissione digitale Westernwire EG202E50
2x2x24# SFTP 120 ȍ.
ii. Cavo Teldor 9392002xxx BUS-DOR
RS-485/422/232 120ȍ2x2x24 AWG SF/UTP.
2. Schema di collegamento
Collegare tutte le utenze secondo una topologia “daisy
chain”.
3. Limitazioni
Lunghezza massima della rete: 700 metri (lunghezze
superiori installando ripetitori in linea).
Numero massimo di unità: 60.
4. Precauzioni di installazione
Usare una forza adeguata per tirare i cavi: una forza
non adeguata può strappare o distorcere i cavi
inficiando le caratteristiche di isolamento e trasmissione.
Non piegare, annodare o sfregare i cavi durante lo
srotolamento della matassa e durante il fissaggio.
Non utilizzare segmenti di cavo. Utilizzare una tirata
unica per collegare due unità.
Non serrare troppo strettamente le fascette stringi-
cavo. Non schiacciare i cavi durante il fissaggio con
graffette o supporti.
Rispettare il codice colore dei cablaggi attraverso tutta
l’installazione del sistema.
Mantenere la coppia ritorta e lo schermatura il più
vicino possibile al terminale di connessione.
Installare cavi e unità facendo attenzione a ridurre al
minimo la possibilità accidentale di un contatto con cavi
di alimentazione e illuminazione potenzialmente
pericolosi.
Non installare i cavi di comunicazione all’interno dello
stesso condotto di cavi elettrici. Se è necessario
attraversare un cavo elettrico eseguire l’incrocio con un
angolo di 90°.
Non posizionare cavi di comunicazione in prossimità
di altri cavi elettrici nudi, parafulmini, antenne,
trasformatori, vapore, tubi di acqua calda, in qualsiasi
condotto, scatola o quadro elettrico contenenti circuiti di
potenza o di illuminazione di qualsiasi tipo. Installare i
cavi di comunicazione e le unità ad una distanza di
almeno 2 metri da dispositivi generanti forti carichi
induttivi (pannelli di distribuzione energia, reattori di
impianti di illuminazione, motori, ecc.).
5. Indirizzamento
Utilizzare la tabella a pag. 2 (MAC Address) per
definire correttamente l’indirizzamento delle unità.
6. Terminazioni
La prima e l’ultima unità della rete di comunicazione
dovrebbero terminare con un resistore a 120ȍal fine di
prevenire una riflessione di segnale. Quando
applicabile, utilizzare i jumpers di “fine linea” creati
appositamente a questo scopo.
7. Messa a terra
Collegare uno dei due estremi dello schermo (alla fine
della rete di comunicazione) a terra (la qualità della
messa a terra deve essere assicurata). Lasciare l’altro
estremo non collegato.
Collegare gli schermi tra di loro esternamente alle
unità (mai attraverso un terminale delle unità).
Non collegare gli schermi ai terminali di terra delle unità.
Utilizzare cavo schermato e intrecciato per rete RS485 costituito
da una o due coppie intrecciate e schermate aventi le seguenti
caratteristiche
- Impedenza 120 ohm a 1 MHZ
- Capacità max 50pF/m
Esempi:
- Belden 3106A
- Belden 9841
3. Network limitations
The network should not be longer than 500 meters (longer distances to be covered by means of repeaters).
The maximum amount of print circuit board network should be not more than 60 units.
4. Installation remarks
• When pulling the cable, do not use force that may stretch the cable and distort its insulation and transmission properties.
• Do not allow the cable to kink, knot, snag, or fray when rolling it out or securing it.
• Do not splice cable segments. Use continuous runs of cable from one print circuit board to another.
• Do not cinch cables ties too tightly. Do not crushcables when securing them with staples or supports.
• Maintain the color-coding of all cabling throughout your system.
• Maintain wire twisting and run the cable jacket as close as possible to the termination point.
• Install cables and controllers to minimize the possibility of accidental contact with other, potentially hazardous and disruptive power and lighting cables.
Do not run communication cables in the same conduit of electrical cables and if you cross an electrical cable, cross at a 90° angle.
• Do not place communication cables near other bare power cables, lightning rods, antennas, transformers, steam or hot water pipes, in any conduit, box,
channel, duct or other enclosure containing power or lighting circuits of any type. Keep communication cables and controllers at least 2 meters from large
inductive loads (power distribution panels, lighting ballasts, motors, etc.).
5. Addressing
Use the address table on the next page to correctly dene the addressing of the print circuit board
6. Termination
First and last devices in the communication line should be terminated with a 120 Ohm resistor to prevent signal reection.
Use the jumper JP2 in the prin circuit board.
7. Grounding
Connect one end of the shield (at the end of the communication line) to a tested ground (earth).
Leave the other end of the shield not connected (oating).
MODBUS-IOM-0822-EN
•12•

Communication system: wiring diagram and settings
•13•
MODBUS-IOM-0822-EN

Address table ( dip switch SW2 address in the print circuit board)
ADDRESS - SW2
ADDRESS DIP SWITCHES TO PUT ON
0NOT USED
1 1
2 2
3 1,2
43
5 1,3
62,3
7 1,2,3
8 4
9 1,4
10 2,4
11 1,2,4
12 3,4
13 1,3,4
14 2,3,4
15 1,2,3,4
16 5
17 1,5
18 2,5
19 1,2,5
20 3,5
21 1,3,5
22 2,3,5
23 1,2,3,5
24 4,5
25 1,4,5
26 2,4,5
27 1,2,4,5
28 3,4,5
29 1,3,4,5
30 2,3,4,5
ADDRESS DIP SWITCHES TO PUT ON
31 1,2,3,4,5
32 6
33 1,6
34 2,6
35 1,2,6
36 3,6
37 1,3,6
38 2,3,6
39 1,2,3,6
40 4,6
41 1,4,6
42 2,4,6
43 1,2,4,6
44 3,4,6
45 1,3,4,6
46 2,3,4,6
47 1,2,3,4,6
48 5,6
49 1,5,6
50 2,5,6
51 1,2,5,6
52 3,5,6
53 1,3,5,6
54 2,3,5,6
55 1,2,3,5,6
56 4,5,6
57 1,4,5,6
58 2,4,5,6
59 1,2,4,5,6
60 3,4,5,6
MODBUS-IOM-0822-EN
•14•

Print Circuit Board
DIP SWITCH CONFIGURATION AND OPERATION LOGIC
(Dip switch SW1 CONFIGURATION in the board)
N° DIP FUNCTION ON OFF Default
1System type 4 pipe 2 pipe
see wiring diagram
2VH out Electric heater Heat valve
3Interface type Wall interface Infrared control
4Motor type 3 speed 0-10Vdc (EC)
5Fan in cool mode Thermostatic control Continuously running
6Fan in heat mode Thermostatic control Continuously running
7Fan delay time at set point reached No delay 3 min. delay
8Master/Slave* Master Slave
* If not connected in a master-slave system, all boards must be congured as slave.
JUMPER OPERATION LOGIC
N° DIP FUNCTION OPEN CLOSED Default
JP1
Destratication in heating mode
Fan activated at minimum speed
once set-point reached.
Ton = 1 minute
To󰀨 = 5 minutes
Active Not active Open
JP2 End resistor in a system
with communication bus Resistor 120 Ohm not inserted Resistor 120 Ohm inserted Open
LED INDICATION (NORMAL OPERATION)
LED INDICATION MEANING UNIT STATUS
LED o󰀨 Unit OFF or in FAN mode Unit OFF or in FAN mode
Solid blue LED Cooling mode Operating mode
Solid red LED Heating mode Operating mode
Blue ashing LED - 1 sec. ON - 1 sec. OFF Window contact open Unit OFF
Red/blue ashing LED Water temperature read in progress Standby mode
LED INDICATION (ALARM)
LED INDICATION MEANING UNIT STATUS
Flashing red led
2 ashes and one pause ALARM SWITCH input open Water level alarm in condensation
(Stop in alarm)
Flashing red led
3 ashes and one pause EC FAULT input open ECM motor alarm
(not used)
Flashing red led
4 ashes and one pause
T3=75°C
T3=4°C
High water temperature alarm
or low water temperature alarm (Stop in alarm)
Flashing red led
5 ashes and one pause T1 probe disconnected or short-circuited (Stop in alarm)
Flashing red led
6 ashes and one pause T2 probe disconnected or short-circuited (Stop in alarm)
Flashing red led
7 ashes and one pause T3 probe disconnected or short-circuited (Stop in alarm)
•15•
MODBUS-IOM-0822-EN

01
12
13
14
15
20
16
21
18
17
22
23
24
25
19
04
09
10
11
02
03
05 06
07 08
Infrared remote control
01. Timer
02. Active
03. Not active
04. Modes display
05. Fan only
06. Cool
07. Heat
08. Auto
09. Turn system OFF
10. Clock, timer and blades adjustment
11. Turn system ON / send changes
12. Real time clock
13. Temperature unit
14. Set-point display
15. Fan speeds display
16. Low
17. Medium
18. High
19. Auto
20. (Function not available)
21. (Function not available)
22. (Function not available)
23. Fan speed selection
24. Mode selection
25. Set-point adjustment
CLOCK ADJUSTMENT
• Press the [Select] button – “CLOCK SET” will ash.
• Press the [+] or [-] buttons - the hours will ash.
• Adjust the hours using the [+] or [-] buttons.
• Press the [Select] again - minutes will ash.
• Adjust the minutes using the [+] or [-] buttons.
• Press the [Select] again to return to normal display.
• Press the [On/Send] button to send information to the unit.
ON/OFF DAILY TIMER
Start Time
•Press the [Select] button twice – “PROGRAM & START” will ash on display.
• Adjust the hours using the [+] or [-] buttons.
•Press the [Select] button - the minutes will ash.
• Adjust the minutes using the [+] or [-] buttons.
•Press the [Select] button to return at normal display.
Stop Time
• Press 3 times the [Select] button – “PROGRAM & STOP” will ash on display.
• Adjust the hours using the [+] or [-] buttons.
• Press the [Select] button - the minutes will ash.
• Adjust the minutes using the [+] or [-] buttons.
• Press the [Select] button to return at normal display.
Run the timer
• Press 4 times the [Select] button - TIMER will blink
• Select TIMER ON ( ) or OFF ( ) using the [+] or [-] buttons.
• Press the [On/Send] button to send the information to the unit.
MODBUS-IOM-0822-EN
•16•

EMERGENCY ON/OFF BUTTON
The IR receiver contains an [On/O󰀨] emergency button which can be used for turning the system ON and OFF when the infrared remote control is broken.
The [On/O󰀨] button should be pressed for more than 3 seconds and until the unit beeps (but not more than 10 seconds). Once pressed, the unit will turn
ON or OFF.
When turned ON using the emergency button, the unit will operate in Auto change over mode using preset set-point temperatures for heating (21°C) and
cooling (24°C). The fan will run in medium speed.
INTAKE AIR SENSOR CALBRATION (T1) FROM INFRARED REMOTE CONTROL
After measuring the exact temperature in the room, please follow the indications below:
• With the unit ON press and hold the emergency button [located on the receiver] for more than 15 seconds.
The system will enter to a “Calibration” mode. In this mode the beeper will beep each 5 seconds, and both blue and red LED’s will ash together
and beep sound will continue until out of the calibration mode.
•Once the system is in “calibration mode” the technician will adjust the set point in the infrared remote control as the measured actual room temperature,
and send to the IR receiver [SEND].
• The temperature will be acquired by the system as a new sensor temperature value.
• To save the temperature acquired by the system, the unit must be turned OFF and then ON by the infrared remote control.
• If no information will be sent from the infrared remote control, after 2 minutes from the opening of the calibration mode, the system will return to the
normal operating mode.
•17•
MODBUS-IOM-0822-EN

+ 32 3 633 3045 [phone]
[phone] [phone]
[phone] [phone]
+ 39 02 495 26 200 [phone]
+ 31 332 471 800 [phone]
[phone]
LENNOX DISTRIBUTION
[phone]
+ 32 3 633 3045 [phone]
[phone] [phone]
[phone] [phone]
+ 39 02 495 26 200 [phone]
+ 31 332 471 800 [phone]
LENNOX DISTRIBUTION
[phone]
www.lennoxemea.com
MODBUS-IOM-0822-EN
Pour respecter ses engagements, Lennox s’eorce de fournir des informations les plus
précises. Néanmoins, les spécications, valeurs et dimensions indiquées peuvent être
modiées sans préavis, sans engager la responsabilité de Lennox.
Une installation, un réglage, une modication, un entretien ou une opération de maintenance
inappropriés peuvent endommager le matériel et provoquer des blessures corporelles.
L’installation et la maintenance doivent être conées à un installateur ou à un technicien de
maintenance qualié.
AGENCES COMMERCIALES :
BELGIQUE ET LUXEMBOURG POLOGNE
FRANCE PORTUGAL
ALLEMAGNE ESPAGNE
ITALIE UKRAINE
PAYS-BAS ROYAUME-UNI ET IRELANDE
AUTRES PAYS :