Lennox DC User manual

www.lennoxemea.com
BALTIC
FLEXAIR
ENERGY
AIRCOOLAIR
COMPACTAIR
FLATAIR
AQUALEAN
USER MANUAL
DC-DM-IOM-1801-E
DC & DM displays

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Summaries
1 Display ‘DC’
1.1 Introduction .................................................................................................................................2
1.2 Temperature measurement ........................................................................................................2
1.3 Quick Action.................................................................................................................................3
1.4 Presentation ................................................................................................................................6
1.5 Use ...............................................................................................................................................7
1.6 DC set in ‘Light’ mode ..................................................................................................................8
1.7 DC set in ‘Full’ mode ....................................................................................................................9
1.8 Setting Value ............................................................................................................................11
1.9 Activation level 2 .......................................................................................................................11
2 Display ‘DM’
2.1 Quick Action...............................................................................................................................12
2.2 Functionality of the DM .............................................................................................................14
2.3 Organizational screens...............................................................................................................21
3 DC, Installation
3.1 Connection.................................................................................................................................23
3.2 Ferrites Protection of Displays...................................................................................................25
3.3 Temperature Sensor ..................................................................................................................25
3.4 Configuration .............................................................................................................................25
3.5 Initialization ...............................................................................................................................26
4 ‘DM’, Installation
5.1 Connection.................................................................................................................................27
4.2 Connection on the splitter DT50................................................................................................28
4.3 Ferrites Protection of Displays...................................................................................................28
4.4 Configuration .............................................................................................................................29
5 DC-DM Communication Master/Slaves
6.1 Connection.................................................................................................................................30
7 ALARM LIST ............................................................................................................... 31

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Display ‘DC’1
1.1 Introduction
The display ‘DC’ is customized for the user.
It allows an overview of the operation of the Unit and allows access to some parameters.
Depending on the setting in the Climatic, two display configurations are possible:
•Mode ‘Light’
•Mode ‘Full’
The 'DC' is designed to be remotely connected of the Unit.
The 'DC' is equipped with a temperature sensor.
The temperature sensor allows the acquisition of room temperature to control.
1.2 Temperature measurement
All Lennox Unit comes with a temperature sensor; it must be placed in the conditioned area.
But if the 'DC' is placed in the area conditioned by the Unit, it is possible, in this case, to use the temperature
measurement of the 'DC'.

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1.3 Quick Action
1.3.1 How to See the Operation of the Unit 4 ?
Only if several units are connected to the DC.
Turn the knob to have the text ‘Unit’.
Press the knob to switch in 'Set' mode.
Turn the knob to select number 4.
Press the knob to confirm your choice
1.3.2 How to Start all Units connected at this DC ?
Press the button a few seconds.
The units can not be powered On/Off by the DC if the service display DS is connected.

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1.3.3 How to Start Unit 4 ?
Only if several units are connected to the DC.
Select the Unit 4 (see: How to See the Operation of the Unit 4 ?)
Turn the knob to have the text ‘I-O’.
Press the knob to switch in 'Set' mode.
Turn the knob to select number 1 (1 for ‘On’, 0 for ‘Off’).
Press the knob to confirm your choice
The units can not be powered On/Off by the DC if the service display DS is connected.
1.3.4 How to See the Value of the Current Setpoint Temperature ?
Turn the knob to have the text ‘Set’.
The value displayed is the temperature setpoint.

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1.3.5 How to Modify the Value of the Current Setpoint Temperature ?
Turn the knob to have the text ‘Set’.
Press the knob to switch in 'Set' mode.
Turn the knob to change the value.
Press the knob to confirm your choice

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1.4 Presentation
1.4.1 Showing
1.4.2 Buttons

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1.5 Use
1.5.1 Control operating mode.
Only for Flatair and Aqualean ranges.
Press until the desired operating mode is displayed.
Heating mode
Cooling mode
Automatic mode
1.5.2 Fan Speed Management.
Only for Flatair and Aqualean ranges.
Press to select the desired speed (min, med, max) or automatic (Auto).
Minimum speed
Median speed
Maximum speed
Automatic Speed
1.5.3 On/Off unit
By supporting a few seconds, the button you can activate or not (On/Off) the Unit connected.
If the symbol completed by the time is displayed, the Unit is stopped and the 'DC' in sleep mode.
To restart the unit, press the button a few seconds
If the DC is used with the Master/Slaves bus in this case, the 'Off' phase, stops all Rooftop connected on the Bus, 'On'
phase restarts all.

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1.5.4 Setting time
At initialization of the 'DC', the CLIMATIC are synchronized time and day of week with the clock 'DC'.
To view the clock, briefly, press the button
To set the clock press the button a few seconds
The hour value, flashes.
Turn the knob to adjust the desired value.
Press the knob to select your choice.
Then the minute value, flashes.
Turn the knob to adjust the desired value.
Press the knob to select your choice.
| Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
Then the weekday value, flashes.
Turn the knob to adjust the desired value.
Press the knob to select your choice.
After a few seconds 'DC' communicates the new time to the CLIMATIC.
1.5.5 Information available
By rotating the knob you can view or modify the following values:
1.6 DC set in ‘Light’ mode
* : Unit Index selected by the ‘DC’
: Volatile temperature set point current mode (°C)
: : Indoor (Room) temperature (°C)
: Alarms code
* : Available if the option is enabled.
: Adjustable with ‘DC.
1.6.1 Unit selected
If the DC is used with the Master/Slaves bus this item can select or know the Unit Index selected by the 'DC'.

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1.6.2 Volatile Temperature set point
This item allows you to view and/or modify the control temperature required for the Unit selected.
If this point is changed, this value is used until the scheduling changes mode (Day, Day I, Day II, Night, BMS).
At each change of the mode, the CLIMATIC sets the value of this set point on the preset value in the mode concerned.
1.6.3 Alarms code
This item allows you to view the code of different active alarms on the Unit.
If the Unit isn't in alarm, this item is to 0.
1.6.4 Indoor (Room) temperature
This item indicates the measured air temperature in the room conditioning.
The room temperature isn't available if the CLIMATIC is configured to supply control.
1.7 DC set in ‘Full’ mode
- : Unit Index selected by the ‘DC’
- *: On/Off of the Unit selected.
- : Predetermined temperature set point current mode (°C)
- : Volatile temperature set point current mode (°C)
- : Alarms code
- *: Outdoor temperature (°C)
- : Supply temperature (°C)
- *: Indoor (Room) temperature (°C)
- * : Indoor (Room) humidity (%hr)
- * : Indoor (Room) Air quality (ppm)
- * : Opening of fresh air damper (%)
* : Available if the option is enabled.
: Available if the level 2 is activated.
: Adjustable with ‘DC.
1.7.1 Unit connected
This item can select or know the Unit Index selected by the 'DC'.
1.7.2 On/Off, Power
If the DC is used with the Master/Slaves bus this item allows you to view and/or change the status of starting or
stopping of the Unit selected.
1.7.3 Volatile Temperature set point
This item allows you to view and/or modify the control temperature required for the Unit selected.
If this point is changed, this value is used until the scheduling changes mode (A, B, C, D, BMS).
At each change of the mode, the CLIMATIC sets the value of this set point on the preset value in the mode concerned.

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1.7.4 Predetermined Temperature set point
If level 2 is active, this item allows you to view and/or change the preset temperature control for the active mode.
1.7.5 Alarms code
This item allows you to view the code of different active alarms on the Unit.
If the Unit isn't in alarm, this item is to 0.
By this item it's possible to reset the alarm activated. To do this set the value of the item to the value 0.
1.7.6 Outdoor temperature
This item indicates the measure temperature of the air outside.
The outside temperature isn't available for the WSHP range.
1.7.7 Supply temperature
This item indicates the measure of outlet air temperature of the Unit.
1.7.8 Indoor (Room) temperature
This item indicates the measured air temperature in the room conditioning.
The room temperature isn't available if the CLIMATIC is configured to supply control.
1.7.9 Indoor (Room) relative humidity
This item shows the measured relative humidity of the air in the room conditioning.
The room humidity isn't available if the option of humidity management isn't set.
1.7.10 Measurement of CO²
This item indicates the measured rate of CO² in conditioning room, in ppm.
The measurement of CO² isn't available if the option isn't set.
1.7.11 Opening of fresh air damper
This item indicates the measured value of the opening rate of the fresh air damper, in%, (mixture of outside air and
return air)
This value is only available if the Unit is equipped with this option.

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1.8 Setting Value
If the value of the selected item is modified .
To activate the modified value
Press the knob .
The symbol appears on the right side of the value.
Turn the knob to adjust the desired value.
Press again on the knob to confirm your choice.
The symbol is no longer displayed on the right side of the value.
The rotation of the knob is for select a new item.
1.9 Activation level 2
(2 buttons on the right simultaneously)
Simultaneously press the keys and .
After some seconds the text appears and the value '000' flashes.
Turn the knob to change the value to select the number 066. Then validate the code by pressing the knob.
If the code is wrong access the setup menu is not possible and the 'DC' returns to the previous display.
If the code is correct the level 2 is actif, and symbol is displayed to the right of the value.
The level 2 is turned off automatically every hour.

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Display ‘DM’2
The display 'DM' is customized for the user.
It allows an overview of the operation of the Unit and allows access to some parameters.
The 'DM' is designed to be remotely connected of the Unit.
The 'DM' can be connected to several Lennox Units, Between 1 and 8 units
2.1 Quick Action
2.1.1 How to See the Operation of the Unit 4 ?
Press, several times, the button ‘Esc’ to display the page 'Unit'.
Press, several times, the button ‘Down’ to select number 4
Press ‘Enter’ to confirm your choice
Display for a unit to ‘On’ Display for a unit to ‘Off’

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2.1.2 How to Start Unit ?
Press ‘Prg’ to activate the setup menu
If necessary, press several times ‘Up’ or ‘Down’ to blacken the icon
Press ‘Enter’ to confirm your choice
Press ‘Up’ or ‘Down’ to change the state ‘Off’ to ‘On’
Press ‘Enter’ to confirm your choice
Press ‘Esc’ to return to the main screen
The units can not be powered On/Off by the DM if the service display DS is connected.
2.1.3 How to See the Value of the Current Setpoint Temperature ?
Press ‘Prg’ to activate the setup menu
If necessary, press several times ‘Up’ or ‘Down’ to blacken the icon
The value displayed is the temperature setpoint.
Press ‘Esc’ to return to the main screen

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2.1.4 How to Modify the Value of the Current Setpoint Temperature ?
Press ‘Prg’ to activate the setup menu
If necessary, press several times ‘Up’ or ‘Down’ to blacken the icon
Press ‘Enter’ to confirm your choice
Press ‘Up’ or ‘Down’ to change the value
Press ‘Enter’ to confirm your choice
Press ‘Esc’ to return to the main screen
2.2 Functionality of the DM
2.2.1 Selection of Unit
A DM can be connected to 8 units on the pLan bus. Screens DM connected, alternatively, to one of BM.
The next screen allows selection of the unit to display:
Each of the 8 Unit is represented by a number.
The Unit selected is indicated by its number which is framed.
Each time you press the button 'Down Arrow' connects the display on the next Unit.
Button 'Enter': Go to main screen.
Button 'Down Arrow': Select the next Unit.

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2.2.2 Unit ‘Off’
If the Unit is stopped 'Off', this screen is activated.
Button 'Alarm': Go to Alarm list.
Button 'Prg': Go to Setup menus of the unit.
Button 'Esc': Return to the choice of Unit selected.
2.2.3 Unit Operation
2.2.3.1 Main
Top left :
Control in heating mode or control in cooling mode
Big, numerical value: Measured value of the air temperature in the conditioned space.
Top right:
State of the ventilation
Bottom right:
Mode state based on the schedule, hour, minute, of Climatic™ :
Mode Night
Mode Day
Mode Day I
Mode Day II
Bottom left:
If the unit is in alarm, this symbol is displayed.
Button 'Alarm': Go to Alarm list.
Button 'Prg': Go to Setup menus of the unit.
Button 'Esc': Return to the choice of Unit selected.
Button 'Up Arrow': Go to another display of the Unit operation.
Button 'Down Arrow': Go to another display of the Unit operation.

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2.2.3.2 Value
To the left of the house:
Visualization of the value of outdoor humidity (if enabled).
Visualization of the value of outdoor temperature.
In the house:
Visualization of the value of indoor humidity (if enabled).
Visualization of the value of the indoor temperature.
Visualization of the value of the rate of indoor air quality (if enabled).
2.2.3.3 Set-points
Visualization of the set point of heating mode.
Visualization of the set point of cooling mode.
2.2.3.4 Operation
Visualization of the opening percentage of fresh air damper.
Visualization of the percentage of compressors engaged.
Visualization of the percentage of heaters engaged.
Button 'Alarm': Go to Alarm list.
Button 'Prg': Go to Setup menus of the unit.
Button 'Esc': Return to main screen.
Button 'Up Arrow': Go to previous display of the Unit operation.
Button 'Down Arrow': Go to next display of the Unit operation.
2.2.4 Alarm list
History used to store the last 99 alarms occurred on the unit.
Each alarm is stored on the date and time the fault occurred.
An active alarm is signified by the symbol 'Bell'.
An alarm not active is signified by the symbol '.'.
Each alarm is signified by a 3 digit code

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To have the text of fault code, position the cursor on the desired line, by using the 'Up Arrow' or 'Down Arrow' and
then confirm by pressing 'Enter'
Button 'Esc': Return to main screen.
Button 'Up Arrow': Positions you in the list.
Button 'Enter': Go to text of failure code.
Button 'Down Arrow': Positions you in the list.
2.2.5 Setup menus
Button 'Alarm': Go to Alarm list.
Button 'Esc': Return to main screen.
Button 'Up Arrow': Selects the previous function.
Button 'Enter': Go to the screen of the selected function.
Button 'Down Arrow': Selects the next function.
2.2.6 Setting; Customer Temperature
View and/or modify the offset, or set point, of the temperature control desired for the Unit selected.
If the set-point is changed, this value is maintained as long as the scheduling of Unit doesn't change modes (Night,
Day, Day I, Day II, BMS).
At each change of the mode the CLIMATIC sets the value of this set-point on the preset value in the mode concerned.
Button 'Alarm': Go to Alarm list.
Button 'Esc': Return to Setup menus of the unit.
Button 'Up Arrow': Increases the set-point value.
Button 'Enter': Valid the changes then return to Setup menus of the unit.
Button 'Down Arrow': Decreases the set-point value.

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2.2.7 Setting; On/Off Unit
View/edit, status of Off/On of the unit.
Button 'Alarm': Go to Alarm list.
Button 'Esc': Return to Setup menus of the unit.
Button 'Up Arrow': Reverses the state.
Button 'Enter': Valid the changes then return to Setup menus of the unit.
Button 'Down Arrow': Reverses the state.
The units can not be powered On/Off by the DM if the service display DS0 is connected.
2.2.8 Setting; Clock of Climatic™
View/edit, hour, minute, day of month, month and year of the clock Climatic™.
Button 'Alarm': Go to Alarm list.
Button 'Esc': Return to Setup menus of the unit.
Button 'Up Arrow': Increases the selected value.
Button 'Enter': Valid the changes and puts you to the next field.
Button 'Down Arrow': Decreases the selected value.
2.2.9 Access to the Setup Menus Plus