Lennox DC40, DC41 User Manual

Providing indoor climate comfort

CLIMATIC™ 40

MUL37E-0607 12-2009
Original manual translation

User manual

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5-7

8-9

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13-14
14-15

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18-20

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INDEX

CONTENTS PAGE

• INDEX

• DESCRIPTION OF CONTROLS

1.- CLIMATIC 40 CONTROL

2.- DC41 TERMINAL (ECOLEAN)

3.- DC40 REMOTE TERMINAL (AIRCOOLAIR)

• MENU

• REGULATION

1.- ECOLEAN

2.- AIRCOOLAIR

3.- AIRCUBE

• ADVANCED FUNCTIONS

1.- REMOTE ON/OFF

2.- REMOTE WINTER / SUMMER CHANGEOVER

3.- DYNAMIC SET POINT

4.- BMS COMUNICATIONS

5.- TIME BANDS PROGRAM (ECOLEAN)

6.- LOW NOISE

7.- ANALOGUE / DIGITAL INPUT

8.- TIMING AND DELAYS

9.- DEFROST

10.- CONDENSER FAN SPEED CONTROL

11.- FREE COOLING

• PARAMETERS

• SAFETY DEVICES

• INSTRUCTIONS FOR ASSEMBLY AND INSTALLATION

• ALARMS

2

PWM

DC 41

BM40

ECOLEAN AIRCOOLAIR AIRCUBE

PWM

DC 40

BM40

PWM

BM40

EAC/EAR-SM ANCM/ANHM KSCM/KSHM

Climatic 40 control, is an electronic device that controls Ecolean EAC/EAR units (chiller units), Aircoolair ANCM/ANHM units (air-air
units) and Aircube KSCM/KSHM units (condensing units).
The thermostat allows the following operations:

• Unit ON/OFF.

• Select system operating mode.

• Set point adjustment.

• Alarm signal relay.

• Display temperature, status of unit and pending alarms.

• Programming of time bands.

• BMS comunications.

• Possibility of remote ON/OFF.

Inlet and outlet water, temperature/pres­sure condenser and outdoor temperature
probes (optional).

Proportional regulation based on inlet
water temperature (cooling and heating
mode).

Defrost cycle (heat pump units), with pres­sure tranducer.

Condensing pressure control with tempe­rature probe or pressure transducer.

Flow switch, antifreeze, high and low pres­sure protections.

Compressors, water pump, fans and elec­trical heater management.

Return / remote ambient, evaporator, tem­perature/pressure condenser and outdoor
temperature probes (optional).

Proportional regulation based on remote
ambient /return temperature (cooling,
heating and automatic mode).

Defrost cycle (heat pump units), with pres­sure tranducer.

Condensing pressure control with tempe­rature probe or pressure transducer.

Antifreeze, high and low pressure protections.

Compressors, indoor and o utdoor fans,
electrical heater and freecooling (optional)
management.

Condenser temperature/pressure probes.

Regulation based on remote free voltage
contacts.

Defrost cycle (heat pump units), with pres­sure tranducer.

Condensing pressure control with tempe­rature probe or pressure transducer.

High and low pressure protections.

Compressors, indoor (optional) and outdo­or fans.

DESCRIPTION OF CONTROLS

Condenser

temperature

/pressure

Inlet water

temperature

Outlet water
temperature

Outside

temperature

(optional)

Fan speed

control

Expansión

board

Condenser

temperature

/pressure

Fan speed

control

Expansión

board

Return air

duct

temperature

Evaporator

temperature

Outside

temperature

(optional)

Fan speed

control

Expansión

board

Free cooling

motor damper

1.- CLIMATIC 40 CONTROL

Return or

remote

ambient

temperature

3

H

F

G

E

D

C

B

A L K

I

J

A
B
C
D
E

F
G
H

I

L

I+L

J

K

J+K

L+J

DESCRIPTION OF CONTROLS

CLIMATIC 40 CONTROL

The gure and the table below show the symbols present on the display and on the keypad,together with their meanings:

The main screeen shows: inlet water temperature for ECOLEAN, ambient temperature for AIRCOOLAIR and unit status (On/Off)
for AIRCUBE.

SYMBOL

DESCRIPTION

LED ON LED FLASHING

1 or 2

Compressor 1 and /or 2 (circuit 1) ON. Start up request.

2 or 3

Compressor 3 and /or 4 (circuit 2) ON. Start up request.
At least 1 compressor ON.
Water pump/Indoor fan ON. Start up request.
Condenser fan ON.
Defrost active. Start up request.
Electrical heater ON. Start up request.
Alarm active.
Cooling mode. Cooling mode request.
Heat pump mode. Heat pump mode. Request.

BUTTON DESCRIPTION TIME

Go up a sub-group inside the programming area. Press once
Access the direct parameters. Press for 5 s
Select item inside the programming area / conrm changes to the parameters. Press once
Program parameters afters entering password. Press for 5 s
Select top item inside the programming area. Press once
Increase value. Press once
Switch from standby to heat pump mode and vice-versa. Press for 5 s
Provides immediate access to the condenser and evaporator pressure and temperature probes. Press once
Select bottom item inside the programming area. Press once
Decrease value. Press once
Switch from stand-by to chiller mode and vice-versa. Press for 5 s
Provides immediate access to the condenser and evaporator pressure and temperature probes. Press once
Manual alarm reset. Press for 5 s
Immediately reset the hour counter (inside the programming area). Press for 5 s
Force manual defrost on both circuits. Press for 5 s

4

J

L

K

I

I+L

J+K

DESCRIPTION OF CONTROLS

DC41 terminal is an optional keypad that allows the Climatic 40 controller to be managed remotely. The buttons and indications on

the display faithfully reproduce the Climatic 40 user interface.

1.1.1.- TURN ON/OFF THE UNIT

In order to turn on the unit, press the “ ” button for 5 seconds, for the heat pump mode, or the “ ” button, for the cooling
mode.

The display shows unit’s operating mode together with the symbols of the working elements (compressors, water pump etc.).
In order to turn off the unit, press the “ ” button for 5 seconds (if the unit is working in heat pump mode) or the “ ” button (if
the unit is working in the cooling mode).

1.1.2.- SELECTING THE UNIT´S OPERATING MODE

If the unit is on stand-by, the operating mode is selected at start-up (as explained above).

If the unit is working in cooling or heating mode, in order to change the operating mode, you rst have to turn the unit off, and only

then can you turn it on in the operating mode you want.

1.1.3.- SELECTING THE WATER TEMPERATURE OF THE SYSTEM

To modify unit’s working set point, you have to change parameter r1 (cool set point) or parameter r3 (heat set point).
To see how to change a parameter, see chapter 3 MENU (SETTINGS AND OPERATING HOURS DISPLAY MENU paragraph).

1.2.1.- TURN ON/OFF THE UNIT

The unit is turned on by closing the On/Off contact and turned off by opening it (see section 1, advanced functions, for more
details).

1.2.2.- SELECTING THE UNIT´S OPERATING MODE

The heating mode is selected by opening the remote changeover contact while the cooling mode is selected byclosing it (see
section 2, advanced functions, for more details).

NOTE
There are no set points to be made for Aircube units because the compressors are directly controlled by remote contacts.

1.2.- AIRCUBE

1.1.- ECOLEAN

1.- CLIMATIC 40 CONTROL

2.- DC41 REMOTE CONTROL (ECOLEAN)

OPTION

5

2

41 3

11

7

5

6

10

9

8

POWER

Mode

MODE

FAN

SLEEP

CLOCK

TEMP.

UP/DOWN

1 7

2 8

3 9

4 10

5 11

6

DESCRIPTION OF CONTROLS

3.- DC40 REMOTE TERMINAL (AIRCOOLAIR)

The illustration and the table below show the symbols that appear on the display and on the keypad and their meanings.
OFF appears in the main eld of the display if the machine is off, or the set point if the machine is working.

Secundary functions:

Display symbols:

BUTTON NAME DESCRIPTION

Switch from stand-by to ON and vice-versa.

Change operating mode (cooling, heating, automatic).

Switch the indoor fan from automatic mode to always ON and vice-versa.

ActivateS/deactivateS the sleep mode.

ActivateS/deactivateS the time bands.

ShowS the set point when the unit is OFF.

Set the temperature.

BUTTON BUTTON PRESS FUNCTION

3 seconds Sets sleep differential value of the current operating mode.

3 seconds Sets the time bands (hour, day, set point).

5 seconds Clock setting.

3 seconds Reset alarms.

SYMBOL MEANING SYMBOL MEANING

Heating mode. On/Off time bands.

Cooling mode. Sleep mode.

Automatic mode. Duration or sleep mode.

Set point. Alarm.

Day of the week (weekday, weekend). Indoor fan mode.

Hour/Temperature.

6

This function increases (in cooling mode) or decreases (in heating mode) the operating set point according to the lower level of
comfort required during the night.
Not possible with time bands program.
ACTIVATION
Press “ ” button once. The display shows “ ” symbol with “1HR” ashing.

In this way, sleep function will work for 1 hour.
If you want it to work for longer, press “ ” button repeatedly while “1HR” is still ashing (each press of the button increases by

1 hour, till max 9 hours).
Finally, the display shows the “ ” symbol with the number of hours you choose.
DEACTIVATION
Press the “ ” button once and the sleep function will be deactivated (if it was activated before). The “ ” symbol disappears from the display.
DIFFERENTIAL SETTINGS
Press “ ” button for 3 seconds. The sleep differential (the value by which you increase or decrease the comfort set point)
appears on the display.
Use the “ ” buttons to set the value, then press the “ ” button to accept.
Note that cooling and heating modes have different sleep differential values, so you can modify only the current operating mode’s value.

To set current time:

1. Press the “ ” button for 6 seconds. “rtc” and current time appears on the display (hours are ashing).

2. Set the hour using the “ ” buttons.

3. Press the “ ” button to accept. Minutes start ashing on the display.

4. Set the minutes using the “ ” buttons.

5. Press the “ ” button to accept. “day” and the number of the day of the week appear on the display (Monday=1, Tuesday=2 etc.)

6. Set the day by using the “ ” buttons.

7. Press the “ ” button to accept.

3.1.- TURN ON/OFF THE UNIT WITH REMOTE CONTROL DC40 (AIRCOOLAIR)

3.2.- SELECTING THE UNIT´S OPERATING MODE

Once the unit is turned on, you can select Cooling, Heating or Automatic mode just pressing the “Mode” button. In the automatic
mode you just choose the set point and the system automatically switches from cooling to heating mode, depending on the position
of the ambient temperature with respect to the set point.

3.3.- SELECTING DESIRED ROOM TEMPERATURE

If unit is working, the “ ” buttons allow the desired room temperature to be select (set-point).
The “↑” button allows the current set point to be increased by 0.5ºC.
The “↓” button allows the current set point to be decreased by 0.5ºC.

3.4.- SELECTING THE FAN OPERATING MODE (Aircoolair)

In order to be able to select a fan operating mode, the unit’s operating mode (cooling, heating or auto) must be selected.
Pressing the side button “ ” scrolls through the following modes: FAN CONSTANTLY ON, or AUTO
FAN CONSTANTLY ON: Fan is ON continuously and the “ ” simbol will appear.
AUTO: Fan on and off together with the compressor or with the freecooling, the “ ” symbol will appear.

3.5.- SLEEP FUNCTION

3.6.- CLOCK SETTINGS

To turn on the unit press the “ ” button.
The display shows current operating mode.

DESCRIPTION OF CONTROLS

3.7.- TIME BANDS PROGRAM

This function allows you to programme time bands during the week, each one with a different set point. In this way you can adapt

the cooling/heating provided by the unit according to each moment of the day.

You can set two time bands for the weekdays and another two for the weekend.

7



















22ºC
25ºC

OFF

OFF

DESCRIPTION OF CONTROLS

CONFIGURATION

NOTE: You must set the DC40 clock before programming time bands.
Time bands programs keep current operating mode (if it was in cool mode, it keeps working in cool mode; if it was in auto
matic mode, it keeps working in automatic mode, etc.).

EXAMPLE IN SUMMER

a) Enter time bands menu. b) Set 1ST time band for weekday start hour. c) Accept.

d) Set 1ST time band of weekday start minutes. e) Accept. f) Set 1ST time band of weekday set point (on/off/tem-

perature).

g) Accept. h) Repeat steps b-c-d-e-f-g to programme 2nd time

band for weekdays.

i) Repeat steps b-c-d-e-f-g-h to programme the two

time bands for weekends.

Weekdays

Time band 1

ashing

Flashing

Flashing

Flashing

Time band 2

Weekend

Flashing

ACTIVATION

DEACTIVATION

3 sec.

Weekdays

Hour

8:00 (Time band 1)

18:00 (Time band 2)

Weekend

8









b) Set password “ 22 ” by the
“ ” and “ ” buttons.

MENU

A) PROBES DISPLAY MENU

Press the “ ” button to enter probes display menu.
“ b01”, “b02”, “b04”, “b06” ,“b07” ,“b08” ,“b021”, appears on the display (depending

on the unit’s conguration).

Once the probe is selected, after a few seconds, “b01” turns into its temperature/
pressure measure.

Press “ Sel ” button for 5 seconds.
“ ”, appears on the display.
Move inside the menu as explained below.

1 sec.

5 sec.

B) SETPOINT SETTINGS AND OPERATING HOURS DISPLAY MENU

C) PARAMETERS EDITING MENU

a) Press “ Pgr ” and “ Sel”,
at the same time, for 5
seconds.

c) Press “ Sel ”, to accept.

d) Press “ Sel ”, to enter
parameters Editing menu.

Go up a sub-group inside
the programming area.

UP or increase valve.

Down or decrease valve.

Go down a sub-group or accept

parameter modications inside

the programming area.

5 sec.

Access to the menu:

To go to different values in the menu, proceed as above, the:

9

MENU

NOTES:

a) Parameters that have been modied without being conrmed using the “ Sel ” button will return to their previous value.
b) After conrming a modication, escape up to the main menu to save it; otherwise, modications will be cancelled.
c) If no operations are performed on the keypad for 60 seconds, the controller exits the parameter editing menu on timeout

and any changes are cancelled.

MENU TREE

PROBES SETTINGS

ATIFREEZE AND

ELECTRICAL HEATER

PROBES

COMPRESSORS

DEFROST

FANS

UNIT SETTING

ALARMS

REGULATION

TIMER SETTING

SOFTWARE