LENNOX Climatic 40 AIRCOOLAIR / COMPACTAIR / FLATAIR, AIRCUBE Climate control User manual

User manual

CLIMATIC™ 40

Providing indoor climate comfort

MUL43E-1011 04-2012

Original manual translation

INDEX

CONTENTS

• INDEX

• DESCRIPTION OF CONTROLS

1.- CLIMATIC 40 CONTROL

2.- DC40 REMOTE TERMINAL (AIRCOOLAIR/COMPACTAIR/ FLATAIR)

• MENU

• REGULATION

1.- AIRCOOLAIR /COMPACTAIR / FLATAIR

2.- AIRCUBE

• ADVANCED FUNCTIONS

1.- REMOTE ON/OFF

2.- REMOTE WINTER / SUMMER CHANGEOVER

3.- DYNAMIC SET POINT

5.- LOW NOISE

6.- REMOTE SENSOR

7.- TIMING AND DELAYS

8.- DEFROST

9.- CONDENSER FAN SPEED CONTROL

10.- FREE COOLING

• SAFETY DEVICES

• INSTRUCTIONS FOR ASSEMBLY AND INSTALLATION

• BMS

• INPUTS/OUTPUTS CLIMATIC BOARDS

• PARAMETERS

• ALARMS

PAGE

1

2-3

4-6

7-8

9

9

18-20

21

22-24

25-28

10

10

10

11

11

12

12-13

13-14

15

16

17

1

DESCRIPTION OF CONTROLS

1.- CLIMATIC 40 CONTROL

Climatic 40 control, is an electronic device that controls Aircoolair / Compactair / Flatair units (air-air units) and Aircube 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 communications.

• Possibility of remote ON/OFF.

AIRCUBE AIRCOOLAIR / COMPACTAIR / FLATAIR

ASC-ASH / ADC-ADH

CSC-CSH / CMC-CMH / CDC-CDH

FMC/FSC-FMH/FSH

KSCM/KSHM

Expansión board

Expansión board

Return or remote ambient temperature

Return air duct temperature

Evaporator temperature

Outside temperature

BM40

Condenser temperature

/pressure

BM40

Fan speed control

DC 40

Free cooling motor damper

Fan speed control

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

Condenser temperature/pressure probes.

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

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

Regulation based on remote free voltage contacts.

Condensing pressure control with temperature probe or pressure Condensing pressure control with temperature probe or pressure transducer. transducer.

Antifreeze, high and low pressure protections.

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

High and low pressure protections.

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

Compressors, indoor (optional) and outdoor fans.

2

DESCRIPTION OF CONTROLS

CLIMATIC 40 CONTROL

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

The main screeen shows:

- Ambient temperature for AIRCOOLAIR / COMPACTAIR / FLATAIR.

- Unit status (On/Off) for AIRCUBE.

I

J

H

G

F

SYMBOL

1 or 2

2 or 3

E

F

G

H

A

B

C

D

LED ON

Compressor 1 and /or 2 (circuit 1) ON.

Compressor 3 and /or 4 (circuit 2) ON.

At least 1 compressor ON.

Indoor fan ON.

Condenser fan ON.

Defrost active.

Electrical heater ON.

Alarm active.

Cooling mode.

Heat pump mode.

E D

C

B A L

DESCRIPTION

K

Start up request.

Start up request.

Start up request.

Start up request.

Start up request.

LED FLASHING

Cooling mode request.

Heat pump mode. Request.

BUTTON

I

L

I+L

J

K

J+K

L+J

DESCRIPTION

Go up a sub-group inside the programming area.

Access the direct parameters.

Select item inside the programming area / confirm changes to the parameters.

Program parameters afters entering password.

Select top item inside the programming area.

Increase value.

Switch from standby to heat pump mode and vice-versa.

Provides immediate access to the condenser and evaporator pressure and temperature probes.

Select bottom item inside the programming area.

Decrease value.

Switch from stand-by to chiller mode and vice-versa.

Provides immediate access to the condenser and evaporator pressure and temperature probes.

Manual alarm reset.

Immediately reset the hour counter (inside the programming area).

Force manual defrost on both circuits.

1.1.- AIRCUBE

1.1.1.- 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).

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).

TIME

Press once

Press for 5 s

Press once

Press for 5 s

Press once

Press once

Press for 5 s

Press once

Press once

Press once

Press for 5 s

Press once

Press for 5 s

Press for 5 s

Press for 5 s

NOTE

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

3

DESCRIPTION OF CONTROLS

2.- DC40 REMOTE TERMINAL (AIRCOOLAIR / COMPACTAIR / FLATAIR)

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 field of the display if the machine is off, or the set point if the machine is working.

1

2

3

10

9

8

7 6 5

4 11

BUTTON

Mode

NAME

POWER

MODE

FAN

SLEEP

CLOCK

TEMP.

UP/DOWN

Secundary functions:

BUTTON BUTTON PRESS

3 seconds

3 seconds

5 seconds

3 seconds

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.

FUNCTION

Sets sleep differential value of the current operating mode.

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

Clock setting.

Reset alarms.

Display symbols:

SYMBOL

1

2

3

4

5

6

MEANING

Heating mode.

Cooling mode.

Automatic mode.

Set point.

Day of the week (weekday, weekend).

Hour/Temperature.

SYMBOL

7

8

9

10

11

On/Off time bands.

MEANING

Sleep mode.

Duration or sleep mode.

Alarm.

Indoor fan mode.

4

DESCRIPTION OF CONTROLS

2.1.- TURN ON/OFF THE UNIT WITH REMOTE CONTROL DC40

To turn on the unit press the “ ” button.

The display shows current operating mode.

2.2.- 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.

2.3.- SELECTING DESIRED ROOM TEMPERATURE

If unit is working, the “ ” buttons allow the desired room temperature to be selected (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.

2.4.- SELECTING THE FAN OPERATING MODE

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.

NOTE: In units with Modbus communications (without remote control DC40), the fan operating mode can be selected through analog variable nº263 (check the Modbus variable table for further information).

2.5.- SLEEP FUNCTION

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 “1

HR

” flashing.

In this way, sleep function will work for 1 hour.

If you want it to work for longer, press “ ” button repeatedly while “1

HR

” is still flashing (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.

Note that cooling and heating modes have different sleep differential values, so you can modify only the current operating mode’s value.

2.6.- CLOCK SETTINGS

To set current time:

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

2. Set the hour using the “ ” buttons.

3. Press the “ ” button to accept. Minutes start flashing 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.

2.7.- TIME BANDS PROGRAM

This function allows you to program 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.

5

DESCRIPTION OF CONTROLS a) Enter time bands menu.

CONFIGURATION

b) Set 1

ST

time band for weekday start hour.

Time band 1

Weekdays c) Accept.

3 sec.

F d) Set 1 ST time band of weekday start minutes.

e) Accept.

flashing

E

F f) Set 1 ST time band of weekday set point (on/off/temperature).

g) Accept.

Flashing

E

F

Flashing h) Repeat steps b-c-d-e-f-g to program 2 nd time band for weekdays.

Time band 2

Flashing i) Repeat steps b-c-d-e-f-g-h to program the two time bands for weekends.

Weekend

F

Flashing

ACTIVATION

F

DEACTIVATION

EXAMPLE IN SUMMER

Hour

8:00 (Time band 1)

18:00 (Time band 2)

Weekdays

23ºC

25ºC

Weekend

OFF

OFF

F

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.).

6

MENU

Access to the menu:

A) PROBES DISPLAY MENU

1 sec.

E

Press the “ ” button to enter probes display menu.

“ b01” or “b02”, appears on the display (depending on the unit’s configuration).

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

B) SETPOINT SETTINGS AND OPERATING HOURS DISPLAY MENU

Press “ Sel ” button for 5 seconds.

Move inside the menu as explained below.

5 sec.

C) PARAMETERS EDITING MENU

5 sec.

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

“ ” and “ ” buttons.

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

c) Press “ Sel ”, to accept.

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

Go up a sub-group inside the programming area.

UP or increase valve.

Go down a sub-group or accept parameter modifications inside the programming area.

7

Down or decrease valve.

MENU

MENU TREE

PROBES SETTINGS

ATIFREEZE AND

ELECTRICAL HEATER

PROBES

COMPRESSORS

DEFROST

FANS

UNIT SETTING

ALARMS

REGULATION

TIMER SETTING

SOFTWARE

NOTES: a) Parameters that have been modified without being confirmed using the “ Sel ” button will return to their previous value.

b) After confirming a modification, escape up to the main menu to save it; otherwise, modifications 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.

8

REGULATION

1.- AIRCOOLAIR / COMPACTAIR / FLATAIR

Ambient (or return air duct) temperature is thermostatically controlled via set point and tolerance range (differential) as shown in the following diagrams:

1.1- AUTOMATIC MODE

(Heat pump)

HEAT COOL

Ambient temperature (ºC)

1.2- AUTOMATIC MODE

(Cooling only+Electrical heater)

HEAT

COOL

Ambient temperature (ºC)

NOTE: With option Modbus, set point SP is managed through communications instead of DC40 (see table for Modbus parameters)

In manual mode (cool or heat), the compressor/heaters regulation is the same of the automatic mode for the mode selected.

1.3- SETTINGS PARAMETERS

SP: Room setpoint adjusted by DC40 (or by BMS in its absence); r2: cooling regulation range according to which the compressor stages are managed (e.g. in case of 3 compressors, each compressor hysteresis is r2/3) ; r4: heating regulation range according to which the compressor/electrical heaters stages are managed (e.g. in case of 3 compressors, each compressor hysteresis is r4/3); r7: Dead zone [SP-r7÷SP+r7] inside which no operative action is taken (no compressor start/stop, no mode changeover);

A8: Electrical heater 1st stage setpoint (relative value referred to the SP, e.g. 1st heater starts at SP-A8);

A9: Electrical heater stage hysteresis (same value for 1st&2nd stage);

A11: Electrical heater 2nd stage setpoint (relative value referred to the SP, e.g. 1st heater starts at SP-A11);

2.- AIRCUBE

Aircube is regulated by digital input. (see section 7, advanced functions, for more details).

9

ADVANCED FUNCTIONS

1.- REMOTE ON/OFF

This function allows you to turn the unit on/off by a simply remote contact (contacts 95-96 in AIRCOOLAIR /COMPACTAIR / FLA-

TAIR units;contacts 88-89 in AIRCUBE units).

Close contact = ON; Open contact = OFF.

SETTINGS

H07: remote On/Off enable (by Factory settings it’s enabled but the contact is cortocircuited).

2.- REMOTE CHANGEOVER WINTER/SUMMER

On heat pump units (also in Aircoolair / Compactair / Flatair cooling only + electrical heater), cooling or heating mode can be selected by a remote contact (contacts 97-98 in Aircoolair and contacts 95-98 in Compactair and Flatair).

Close contact = Cooling.; Open contact = Heating.

To activate this function set parameters P09=10 and H06=1.

SETTINGS

H06: remote changeover enable (by Factory settings it’s disabled)

P09: digital input nº2 configuration (by Factory settings it’s not configured. To be configured as remote changeover P09=10.

WARNING

On air-air units, remote changeover doesn’t work if the automatic mode has been selected by DC40.

3.- DYNAMIC SET POINT

It is possible a better unit operating mode through dynamic set point function.

With this function the set point can be changed, (going up/down) according to the external conditions in order to save energy.

To activate this funtion, the custome should configurate the parameters explained in the picture below:

Set point ºC

COOL

AIRCOOLAIR / COMPACTAIR / FLATAIR

HEAT

Set point ºC r19 r18

SP (DC40)

Outdoor temp.. ºC

SP = SP(DC40) + (T.ext. - r19) x r17

EXAMPLE

SP = SP(DC40) + (T.ext. - r20) x r31

EXAMPLE

35ºC 45ºC

SP

26ºC

24ºC

SP (DC40) = 24ºC r17 = 0.2

r18 = 2ºC r19 = 35ºC

Outdoor temp.. ºC

SETTINGS

SP (DC40): room setpoint r18: maximum setpoint offet r19: outdoor temperature to start setpoint compensation in cooling r20: outdoor temperature to start setpoint compensation in heating r17: cooling dynamic setpoint gradient r31: heating dynamic setpoint gradient

10

SP (DC40) = 21ºC r18 = 2ºC r20 = 6ºC r31 = 0.2

-4ºC

SP (DC40) r18 r20

Outdoor temp.. ºC

SP

21ºC

6ºC

19ºC

Outdoor temp.. ºC

ADVANCED FUNCTIONS

4.- LOW NOISE

Available for models with poroportional fan pressure regulation.

It moves the condensing pressure set point in order to lower the fan speed and thus reduce noise (specifically at night). If low noise is active during cooling, the condenser control set points are increased by 5º bar. If low noise is active in heating, the set points are reduced by 1º bar.

Set F15=3 to active this function both in cooling and in heating mode.

Also set the following parameters:

Start

End

COOLING

TIME

Rest of day

(hour:minutes)

t14:t15

(hour:minutes)

t16:t17

FAN

Standard

LOW

NOISE

Low noise cooling mode shift is illustrated in the following picture.

FAN SPEED

Start

End

HEATING

TIME

Rest of day

(hour:minutes)

t18:t19

(hour:minutes)

t20:t21

FAN

Standard

LOW

NOISE

_______

- - - - - - -

Standard

“Low noise”

100%

40%

CONDENSER

PRESSURE (bar)

0%

18 18.5

20 23 23.5

25 26 31

SETTINGS

F15: Low noise function enable (0=disabled, 1=enabled in cooling, 2=enabled in heating, 3=enabled in cooling and heating) t14: Low noise starting hour in cooling mode t15: Low noise starting minutes in cooling mode t16: Low noise ending hour in cooling mode t17: Low noise ending minutes in cooling mode t18: Low noise starting hour in heating mode t19: Low noise starting minutes in heating mode t20: Low noise ending hour in heating mode t21: Low noise ending minutes in heating mode

5.- REMOTE SENSOR

By default, the Climatic 40 controls the room temperature through the probe integrated in the DC40 but, as option, a remote probe can be used.

The remote probe must be connected to the Climatic40 in the B1 analog input (check the electrical diagram for more information).

To regulate through the remote probe, the following settings must be performed:

/01=1; b00=0; r23=1 on the BM40

En05=1 on the DC40.

Programming mode:

To adjust the DC40 parameters, follow the procedure explained below programación

SETTINGS

/01: b01 analog input enable (0=disabled, 1=enabled) b00: probe reading displayed on BM40 main screen r23: probe selection for automatic mode changeover

En05: probe reading displayed on DC40 bottom screen

11

ADVANCED FUNCTIONS

6.- TIMING AND DELAYS

COMPRESSOR

In order to protect compressors from destructively cycling on and off, following protection delays have been set:

CM2

ON unit

ON

MINIMUM ON = 30 sec.

MINIMUM OFF = 30 sec.

ON ON

CM1

120 2

5 300

Time

(sec.)

7.- DEFROST

The defrosting process is activated during heating mode in the heat pump units, when the outside temperature is low and the outdoor coil is likely to be frozen. To melt the ice, the defrosting function will switch the unit to cooling operation for a short period.

During defrosting mode, the low pressure is at minimum level, so the pressure switch is disabled in this mode.

The defrost cycle is illustrated in the following picture.

7.1 - DEFROST CYCLE

30

Condenser pressure

(bar)

Compressors

60”

HEAT

Reverse valve

60”

30”

DEFROST

30”

60”

HEAT

12

ADVANCED FUNCTIONS

7.2 - DYNAMIC DEFROST

Defrost dynamic-starting setpoint (based on outdoor temperature) allows to reduce the number and time of defrosting cycles in winter to achieve better unit efficiency

CONDENSER PRESSURE

(bar g)

OUTDOOR

TEMPERATURE (ºC)

8.- CONDENSER FAN SPEED CONTROL

8.1.- PROPORTIONAL CONTROL BASED ON CONDENSING PRESSURE

Models:

AIRCOOLAIR (ASC + kit -15ºC) and (ASHM) 20-85

AIRCUBE (KSCM + kit -15ºC) and (KSHM 22E-86D)

(KSCM + kit -15ºC 112-214)

FLATAIR (FSC/FMC y FSH/FMH) + kit -15ºC

COMPACTAIR (CSC/CMC, CSH/CMH) + kit -15ºC

AIRCOOLAIR (ASC+kit -15ºC 100-140)

FAN

SPEED

FAN

SPEED

100% 100%

40%

0%

18 18.5

20

CONDENSER PRESSURE (bar)

26

10%

0%

18 18.5

24 30

CONDENSER PRESSURE (bar)

13

ADVANCED FUNCTIONS

8.2.- PROPORTIONAL CONTROL BASED ON CONDENSING TEMPERATURE

Models: AIRCOOLAIR:

AIRCUBE:

ASC 20-85

KSCM 22E-86D

FAN

SPEED

100%

40%

0%

18 19

CONDENSER

TEMPERATURE (ºC)

28 40

8.3.- ON/OFF CONTROL BASED ON PRESSURE

Models: AIRCOOLAIR:

AIRCUBE:

ASC/ASH 100-140

KSCM/KSHM 112D-214D

The fans for these models incorporate 2 speeds. The fans work on high or low speed according to:

COOLING MODE:

The on/off and low/high fan speed is managed according to the condensing pressure. See the illustration below:

HEATING MODE (heat pump units only). The low/high fan speed is managed according to the outdoor temperature thermostat.

See the illustration below:

COOLING MODE

HEATING MODE

High speed

Low speed

High speed

Low speed

0ºC

22 bar

15ºC

28 bar

30ºC

30 bar

35ºC

37 bar

Approx. outside temperature ºC

Condensing pressure

+7ºC

Outdoor temperature ºC

Models: COMPACTAIR

FLATAIR

CSC/CMC+kit 0ºC CSH/CMH

FSC/FMC+kit 0ºC, FSH/FMH

ON ON

OFF

20 bar 24 bar Condensing pressure

OFF

16 bar 22 bar Evaporating pressure

NOTE*: FLATAIR and COMPACTAIR cooling-only standard models have not included condensing pressure control ( fan starts with the com pressor).

14

ADVANCED FUNCTIONS

9.- FREE COOLING

OPTION

This option takes advantage of external conditions to reduce the energy consumption of the unit in cooling mode.

Freecooling is enabled when outdoor temperature is 1ºC lower than indoor temperature; when the former is:

- < 10ºC, the compressors are deactivated and the air intake gate modulates in order to refresh with outdoor air only (sufficient under these conditions).

- >10ºC, the air intake gate opens and delays the compressors, which turn on only if there would be insufficient outdoor fresh air to achieve the comfort setpoint.

The illustration below shows freecooling regulation.

SP

CM3

CM2

CM1

Without freecooling

Ambient temperature (ºC)

23 23.5

R02/4

25

With free cooling

Open air damper.

Close air damper.

Stop air damper.

Ambient temperature (ºC)

23 23.5

24 24.5

26

To get a constant air renewal, when freecoling conditions are satisfied, the damper is mantained opened partially (20%), according to the following values.

SETTINGS r02: Cooling compressor regulation range . Frecooling deadzone range (r02/4) is [SP+r02/4÷SP+r02/2] r40: Minimum fresh air selection (0=never, 1=with freecooling conditions, 6=without freecooling conditions, 7=always, 8=only in cooling mode; 9=only in heating mode) r41: Minimum percentage of fresh air

15

SAFETY DEVICES

ANTIFREEZE PROTECTION (AIRCOOLAIR / COMPACTAIR / FLATAIR).

The unit is protected by means of a temperature probe located in the indoor piping, when the indoor temperature goes drops 2ºC:

WITHOUT FREECOOLING

- The compressors shut down and the antifreeze alarm goes on.

- The alarm is reset automatically when the temperature reaches 7ºC.

WITH FREECOOLING

- Air intake gate closes,

- Once the gate is completely closed, the compressors shut down and the antifreeze alarm goes on.

When the air intake gate is closing, if the temperature in the indoor piping goes up 2ºC, the gate stops and stays in the position reached; then, if the temperature reaches goes over 7ºC, the air damper starts to open or, if the temperature goes down 2ºC, the damper start to close again.

In addition to that, in order to prevent frozen air discharging when freecooling without the compressors working (outdoor temp.

<10ºC), if the temperature in the indoor piping goes down 7ºC, the air intake gate starts to mix outdoor air with return air, thus increasing the temperature of the discharge air.

16

ASSEMBLY AND INSTALLATION INSTRUCTIONS

DC40.

Installation instructions

1. Separate the cover of the instrument from the bodypart using a screwdriver as shown in Fig. 8.1.

2. Open the instrument with a “hinge” movement, pivoting the cover of the instrument upwards.

Fig. 8.1

Lower view

3. Fix the rear part to the wall, taking care that the connection cables pass through the hole in the centre of the rear casing.

The distances between the fastening holes are designed so as to be able to fit the DC40 to a flush-mounting connection box compliant with the CEI C.431 - IEC 670 standards. If this is not available, use the fastening holes on the casing as a guide for drilling the holes in the wall, and then use the kit of screws and plugs supplied.

4. Connect the cables to the terminals located in the casing as indicated in the casing itself or in the electrical diagram.

2 x TWISTED PAIR

SCREEN WIRE AWG20

L.max=100m

Keep the DC40’s inductive load cables separate from those of any power devices (contactors, etc.) in order to prevent electromagnetic interference.

Do not lay power and communications cables together

1 x TWISTED PAIR

SCREEN WIRE AWG20

+ 2 x 1,5 mm

2

L.max=200m

GND

TX+

TX-

Fig. 8.2

GO

G

- Run a connection from the electrical box in the outdoor unit to the DC40 device:

. 91 and 92 terminal blocks respectively to Tx+ and Tx-

(Twisted pair for communications).

. 93 and 94 terminal blocks respectively to GO and G.

(Twisted pair for 24VAC power).

. 90 to GND. (shield).

5. Once the installation is complete, fit the terminal onto the casing by pivoting the cover with a “hinge” movement and close it.

When closing, make sure that the pins on the board fit into the corresponding terminals.

Installation warnings

- Disconnect the power supply before working on the DC40 during operations of assembly, maintenance and replacement.

- The terminal must be fastened to the wall in such a way as to allow the circulation of air through the slits on the rear casing.

- Avoid installing the boards in environments with the following characteristics:

- Avoid locations where there is a great variation in room temperature.

- Near doors leading to the outside.

- On outside walls.

- Where it will be exposed to direct sunlight or to conditioned air flow.

- Where there are strong magnetic and/or radio frequency interference (for example, near transmitting antennae).

17

BMS

BMS COMMUNICATIONS

OPTION

BMS (Building Management Systems) are systems to integrate all technological functions of a building, including access control, security, detection of fires, lights, elevators and air conditioning.

Given the growing and unstoppable trend towards Building Automation, the Climatic 40 controller offers the possibility of communicating with Building Management Systems (BMS) via Modbus protocol. The Modbus standard interface is integrated into the control, so you do not need any sort of gateway, router, etc.

LENNOX units with Modbus protocoll use parametrizacion below:

Serial port

Transmission mode

Speed

Bits of data

Parity

Stop bits

RS485 (EIA/ TIA-485 standard)

RTU (Terminal of remote unit)

9600 Baudios

8 bits

None

2 bit

MODBUS NET CONFIGURATION

With option Modbus communication, Climatic 40 controller is delivered configured and ready for communications. The only parameter which is needed to adjust is the device address (H10).

To activate Modbus communications, please adjust H23=1 and H2

Connect the net like in figure below:

GND

+

-

120Ω

With problems to find all the devices connected, please conect this resistance.

120Ω

SETTINGS

H10: Unit serial address

H23: Modbus protocol enable (0=disabled, 1=enabled).

H24: DC40 remote terminal (0=disabled, 1=enabled). With Modbus protocol enabled the DC40 must be disabled and disconnected.

• Right connection order in the electrical box for LENNOX units should be respected 90= GND ; 91= + ; 92= ―.

• According to the electromagnetic compatibility standard, it is needed to use a pair of specific shielded cables for data transmission with RS485.

• With several units connected into the same Modbus net, secondary of the transformer has not to be earthed for each unit.

18

BMS

PARAMETERS TABLE

U.O.M.= Measurement unit

Resol. = Solution

R/W = Reading/ Writting

NOTE

Every modbus address given has to be considered as a PDU address (base 0)

Parameters and description

ALARMS

Circuit 1 alarm

Circuit 2 alarm

Indoor fan alarm/ Water pump alarm

Alarm sensor

Alarm reset

INPUTS AND OUTPUTS

Digital input 1

Digital input 2

Digital input 3

Digital input 4

Digital input 5

Digital output 1

Digital output 2

Digital output 3

Digital output 4

Digital output 5

Digital input 6

Digital input 7

Digital input 8

Digital input 9

Digital input 10

Digital output 6

Digital output 7

Digital output 8

Digital output 9

Digital output 10

SENSORS

Sensor value B1

Sensor value B2

Sensor value B3

Sensor value B4

Sensor value B5

Sensor value B6

Sensor value B7

Sensor value B8

Sensor value DC40 min.

- / 400

- / 400

- / 400

- / 400

- / 400

- / 400

- / 400

- / 400

- / 400

19

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

Flag

800

800

800

800

800

800

800

800

800

ºC

ºC

ºC / Dbar

ºC

ºC

ºC

ºC

ºC / Dbar

ºC

0,1

0,1

0,1

0,1

0,1

0,1

0,1

0,1

0,1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

máx.

U.O.M.

resol.

1

1

1

1

1

Flag

Flag

Flag

Flag

Flag

1

1

1

1

1

R/W

Modbus address

Type of variable

R

R

R

R

R

R

R

R

R

R

R

R

R

R/W

70

72

73

67

68

69

74

75

76

60

61

62

63

66

53

54

55

56

57

59

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

41

42

45

46

78

Digital

Digital

Digital

Digital

Digital

102

103

104

105

106

107

108

109

128

Analogic

Analogic

Analogic

Analogic

Analogic

Analogic

Analogic

Analogic

Analogic

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

Digital

BMS

Parameters and description min.

UNIT CONTROL

Unit status (1=ON ó 0=standby)

Status auto /manual (0=Manual ó 1=Automatic)

Status cooling / heating (1=Cooling or 0=Heating )

(Writting is possible only with auto/manual = 0 manual)

CL40 cooling setpoint (with auto/manual = 0 manual)

CL40 heating setpoint (with auto/manual = 0 manual)

CL40 Auto setpoint (with auto/manual = 1 auto)

CL40 Second cooling setpoint

CL40 Second heating setpoint

Fan indoor operation mode

1 = always ON 2 = Automatic 3 = Anti-stratification

WARNING: Do not change this value into 0, otherwise fan will be desactivated

Defrost status

0= Without defrost cycle 1= Defrost cycle 1

2= Defrost cycle circuit 2 3= Defrost cycle 1 y 2

5= Fan in defrost cycle circ.1 10= Fan in defrost cycle. circ.2

15= Fan in defrost cycle circ.1 and 2

Low noise activation

0= disabled 1= enable in cooling

2= enable in heating 3= enable in cooling and heating

Minimum configuration of fresh air

0= disabled 1= with freecooling enable

6= with freecooling disabled 7= always

8= cooling mode 9= heating mode

Minimum fresh air %

CLOCK CONFIGURATION

Real time : hours

Real time : minutes

Real time: day

Real time : month

Real time: year

Start hours for 2nd set point in cooling

Start minutes for 2nd set point in cooling

End hours for 2nd set point in cooling

End minutes for 2nd set point in cooling

Start houts for 2nd set point in heating

Start minutes for 2nd set point in heating

End hours for 2nd set point in heating

End minutes for 2nd set point in heating

Start hours for 2nd set point low noise cooling

Start minutes for 2nd set point low noise cooling

End hours for 2nd set point low noise cooling

End minutes for 2nd set point low noise cooling

Start hours for 2nd set point low noise heating

Start minutes for 2nd set point low noise heating

End hours for 2nd set point low noise heating

End minutes for 2nd set point low noise heating

0

0

0

0

0

0

20

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*

*

*

*

*

máx.

U.O.M.

resol.

R/W

Modbus address

Type of variable

5

255

3

9

100

59

23

59

23

99

23

59

23

23

59

31

12

59

23

59

59

23

59

23

23

59

1

8

1

*

*

*

*

*

Flag

Flag

Flag

ºC

ºC

ºC

ºC

ºC

Flag

Flag

Flag

1

1

1

0.1

0.1

0.1

0.1

0.1

1

1

1

R/W

R

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Flag

% min h min h año h min h h min día mes min h min h min h min h min

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

64

291

65

41

43

61

55

56

Digital

Analog

Digital

Analog

Analog

Analog

Analog

Analog

263

Analog

341 Analog

292 Analog

326 Analog

327 Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

Analog

302

303

304

305

340

299

300

301

336

337

338

339

306

307

308

309

310

311

312

313

314

INPUTS / OUTPUTS CLIMATIC BOARDS

21

PARAMETERS

PAR.

DESCRIPTION MIN. MAX. VAR. UD.

AIRCOOLAIR

/1 b01 analog input enable

A01 Antifreeze alarm set point.

A02 Antifreeze differential.

A03 By-pass time for antifreeze alarm.

A04 Antifreeze heater set point.

A05 Antifreeze heater differential.

A9 Auxiliary heater differential.

Antifreeze and electrical heater

0

A7

1

A4

0,3 122

0 150

A1

0,3

R16

50

A08 Auxiliary heater relative set point (1 st

step).

A11 Auxiliary heater relative set point (1 st step).

0

0

0

20

20

20

1

0.1

0.1

1

0.1

0.1

0.1

0.1

0.1

N

ºC

ºC sec.

ºC

ºC

ºC

ºC

ºC

A13 Minimum blowing air temperature with freecoling A7

Probes

R16 0.1

ºC

Config. of probe to be shown on the display:

0= probe B1. 1= probe B2

2= probe B3. 3= probe B4

4= probe B5. 5= probe B6 b00 6= probe B7. 7= probe B8

8= Set point without compensation.

9= Dynamic set point with possible compensation.

0 11 1 N

10= Remote ON/OFF digital input status.

11= Terminal DC40 probe.

b01 Probe B1.

b02 Probe B2.

b03 Probe B3.

b04

Probe B4 b05

Probe B5.

b06 Probe B6.

b07 Probe B7.

b08 Probe B8.

b21 Probe DC40.

----------------

----------------

----------------

1

1

1

1

1

1

ºC

ºC

ºC

---------------- ºC/bar

---------------ºC

----------------

----------------

ºC

ºC

---------------- ºC/bar

---------------ºC

Timming and delays c01 c02 c03 c04 c05 c06

Min. compressor ON time.

Min. compressor OFF time.

Delay between 2 starts of the same compressor.

Delay between starts of the 2 compressor.

Delay between 2 shut-downs of the 2 compressors.

Delay at start up.

0

0

0

0

0

0

999

999

999

999

999

999 sec.

sec.

sec.

sec.

sec.

sec.

sec.

min.

c07 c08

Delay in switching on the compressor after switching on the pump.

Delay in switching off the compressor after switching off the pump

.

c10 Compressor 1 timer.

c11 c12

Compressor 2 timer.

Compressor 3 timer.

c13 Compressor 4 timer.

c14 c15 c17 c18

Compressor operation timer threshold (0=not used).

Evaporator pump timer.

Minimum time between 2 pump starts.

Minimum pump/indoor fan ON time.

c19

Indoor fan operation timer limit (0=not used).

0

0

0

0

0

0

0

0

0

0

999

150

1

1

8000 100

8000 100

8000 100

8000 100

100 100

8000 100

150

150

1

1 min.

hours hours hours hours hours hours min.

0

2

5

30

------

------

1.5 (ASC)

2,5 (ASH 20-40)

3,5 (ASH 45-85)

4,5 (ASH 100-140)

1

2.5 (ASC)

3,5(ASH 20-40)

4,5(ASH 45-85)

7

11

30

30

300

2

0

5

2

1

0

0

1

0

BY DEFAULT

AIRCUBE COMPACTAIR

------

------

------

------

10

30

30

300

2

0

5

0

0

0

------

------

------

------

------

0

0

0

0

0

5

30

------

------

2,5

1

3,5

7

11

30

30

300

2

0

5

5

1

0

0

1

0

FLATAIR 2

30

300

2

0

5

5

1

0

0

1

0

0

2

5

30

------

------

2,5

1

3,5

7

11

22

PARAMETERS

PAR.

DESCRIPTION MIN. MAX. VAR. UD.

AIRCOOLAIR

d01 Defrosting cycle activation.

d03

Start defrosting pressure.

d04

End defrosting pressure.

d05 Min. time to start a defrosting cycle.

d06 Min. duration of a defrosting cycle.

d07 Max. duration of a defrosting cycle.

d08 Delay between 2 defrosting cycle requests with in the same circuit.

d09 Defrosting delay between the 2 circuits.

Defrost

0

1

D03

10

0

1

10

0

1

D04

/12

150

150

150

150

150

Fan

Fan operating mode:

0= Always ON.

F02 1= Depending on compressor (in parallel operating mode).

2= Depending on compressors in ON/OFF control.

3= Depending on compressors in speed control mode.

F05

Temp. value for min. speed cooling.

Pressure value for min. speed cooling.

F06

Differential value for max. speed in cooling mode (temp).

Differential value for max. speed in cooling mode (pres).

F07

Fan shut-down differential in cooling mode (temp).

Fan shut-down differential in cooling mode (pres).

F08

Temperature value for min. speed in heating mode.

Pressure value for min speed cooling.

F09

Differential value for max. speed in heating mode (temp).

Differential value for max. speed in heating mode (pres).

F10

Fan shut-down differential in heating mode (temp).

Fan shut-down differential in heating mode (pres).

F11 Fan starting time.

Activation Low Noise:

0= Deactivate.

F15

1= Activate only in cooling mode.

2= Activate only in heating mode.

3= Activate both in cooling and heating mode.

F16 Differential Low Noise in cooling mode.

F17 Differential Low Noise in heating mode.

Maximum outdoor temperature with outdoor fan speed

0

/11

0

0

0

0

0

-40

/11

0

0

0

0

-40

0

0

0

3

3

50

50

/12

50

30

50

F8

120

176

/12

50

30

50

F5

176

F18 regulation (over maximum speed) -40 176

1

1

1

1

0.1

0.1

1

1

1

0.1

0.1

0.1

0.1

0.1

1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

1

0.1

0.1

1 flag bar bar sec.

sec.

min.

min.

min.

int.

1

5,4

30

60

0

8

35

10

0

5

1

30

1

5,7

30

60

0

8

40

10

0

5

1

30

BY DEFAULT

AIRCUBE

1 (ASC 100-140) 1 (KSCM 112D-214D)

2 (ASH 100-140) 2 (KSHM 112D-214D)

3 (ASC/H 20-85) 3 (KSCM/HM 22E-86D)

ºC bar

ºC bar

ºC bar

ºC bar

ºC bar

ºC bar

28 28

20 (F2=3) / 22 (F2=2) 20 (F2=3) / 22 (F2=2)

12

6

10

2

12

6

10

2

30 30

12 (F2=3) / 22 (F2=2) 12 (F2=3) / 22 (F2=2)

1 1

0

13

0

0

13

0 flag bar bar

ºC

COMPACTAIR

22

------

6

------

13

0

------

10

------

3

------

2

------

1

5,4

30

60

0

8

35

10

1

0

5

1

30

Setting

Fan indoor operatio mode

H05

1 = always ON

2 = Automatic

3 = Anti-stratification

Remote mode changeover enable

H06

0= Not configured

1= Configured

Remote On/Off enable:

H07

0= Not configured

1= Configured

H10

Serial address.

H23 Activate Modbus.

H24

DC40 enable

H97

Expansion board software version.

H99

Software version.

0

0

Enable part load in high pressure:

0= Capacity control desactivated

P04 1= Capactiy control activated for high pressure.

2=Capacity control activated for low pressure.

3= Capacity control activated for high and low pres.

P09

Configuration for digital input nº2: 0= Not configurated

10= winter/summer operation (PSW 66)

0

0

0

1

0

0

0

0

5

1

1

200

1

1

999

999

3

23

1

1

1 flag

1

1

1

1

1 ud.

flag flag flag flag

Alarms

1

1 flag flag flag ud

23

2

0

1

1

0

1

1

0

---

0 (KSCM) 1 (KSHM)

1

1

0

0

1

0

2

0

1

1

0

1

1

0

FLATAIR

1

5,4

30

60

0

8

35

10

1

0

2

0

1

0

22

------

6

------

13

0

------

10

------

3

------

2

------

1

1

0

1

5

1

30

PARAMETERS

PAR.

DESCRIPTION MIN. MAX. VAR. UD.

AIRCOOLAIR

Regulation

R13 R14 0.1

ºC 20 r1

Cooling set point.

r2

Cooling compressor regulation range

0.3

50 0.1

ºC

1 (ASC/ASH 2O-40)

2 (ASC/ASH 45-85)

3 (ASC/ASH 100-140) r3

Heating compressor regulation range

R15 R16 0.1

ºC 25 r4 Differential in heating mode.

0.3

50 0.1

ºC r7 r17 r18 r19 r20 r21 r22 r23 r24 r25 r31 r40 r41 t12 t13 t14 t15 t16 t17 t18 t19 t20 t21 t05 t06 t07 t08 t09 t10 t11 t01 t02 t03 t04

Dead zone.

Cooling dynamic setpoint gradient

Maximum setpoint offset

Outdoor temperature to start setpoint compensation in cooling

Outdoor temperature to start setpoint compensation in heating

Second cooling set point.

Second heating set point.

Select automatic change over probe.

Automatic change over set point.

Outside temp. set point to stop compressors.

Heating dynamic setpoint gradient

Minimum fresh air selection (0=never, 1=with freecooling conditions, 6=without freecooling conditions,

7=always, 8=only in cooling mode; 9=only in heating mode)

Minimum percentage of fresh air

Real Time Clock (RTC) hours.

Real Time Clock (RTC) minutes.

Real Time Clock (RTC) days.

Real Time Clock (RTC) month.

Real Time Clock (RTC) years.

Start hours for 2 nd set point in cooling.

Start mimutes for 2 nd set point in cooling.

End hours for 2 nd set point in cooling.

End minutes for 2 nd set point in cooling.

Start hours for 2 nd

set point in heating.

Start mimutes for 2 nd

set point in heating.

End hours for 2 nd

set point in heating.

End minutes for 2 nd set point in heating.

Start hours for 2 nd low noise cooling.

Start mimutes for 2 nd low noise in cooling.

End hours for 2 nd low noise in cooling.

End minutes for 2 nd

low noise in cooling.

Start hours for 2 nd

low noise in heating.

Start mimutes for 2 nd low noise in heating.

End hours for 2 nd low noise in heating.

End minutes for 2 nd low noise in heating.

1

-5

0.3

-40

50

5

20

176

0.1

0.1

0.1

0.1

-40 176 0.1

R13 R14 0.1

ºC

------

ºC

ºC

ºC

ºC

R15 R16 0.1

0 8 1

R15 R16 0.1

-40 80 0.1

-5 5

ºC flag

ºC

ºC

0.1

------

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Clock

1

1

0

0

9

100

1

1 flag

%

23

59

23

23

59

23

59

59

23

59

59

23

59

99

23

59

23

23

59

31

12

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1 (ASH 2O-40)

2 (ASH 45-85)

3 (ASH 100-140)

0.5

0

2

35

6

28

18

0

23

-15

0

1

20

BY DEFAULT

AIRCUBE COMPACTAIR FLATAIR 2

------

------

------

------

------

------

------

------

------

------

------

------

------

-15

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

20

1 (CMC/H 20-40)

2 (CMC/H 45-85)

3 (CMC/H 100)

25

1 (CMC/H 20-40)

2 (CMC/H 45-85)

3 (CMC/H 100)

0,5

0

2

35

6

28

18

0

23

-15

0

1

20

20

1

25

1

0,5

0

2

35

6

28

18

0

23

-15

0

1

20

WARNING

Default values could vary depending on optional kits or improvements.

24

ALARMS

ALARMS/WARNINGS DISPLAY

The unit self-protects by means of safety devices; when any of these safety devices detects an anomaly, this is shown on the Climatic 40 display and, in Aircoolair / Compactair / Flatair units only, also on the DC41 display (even if it has a different alarm code), in order to warn the operator.

Depending on the type of anomaly, Climatic 40 shows:

• Alarm. Serious anomaly. This is one that has a direct effect on the operation of the unit.

• Warning. Non-serious anomaly. This is one that has no direct effect on the operation of the unit.

The activation of an alarm results in:

- Alarm code being shown on BM40 display alternately with the main menu.

- in Aircoolair / Compactair / Flatair units, an alarm code (different from the one for the Climatic 40) being shown on the DC40 display alternately with the main menu.

- A red bell appears on the Climatic 40 display and the alarm relay is activated. (contacts 99-100).

- In some cases, depending on the type of alarm, some of the outputs may be blocked, thus stopping the unit.

The activation of a warning results in:

- A warning code being shown only on the Climatic 40 display, alternately with the main menu.

ALARM/WARNING RESET

Some alarms are reset automatically. When the cause is no longer present, they disappear from the display.

Others alarms are reset manually and, once the alarm conditions have disappeared, they need to be reset by the user as shown below:

CLIMATIC BM40

5 Sec.

DC 40

3 Sec.

F

25

ALARMS

ALARMS/WARNINGS CODES

DISP

CL40/

DC41

DISP

DC40

DESCRIPTION

HP1

HP

High pressure switch alarm, circuit 1.

This alarm may indicate the following problems:

- High pressure switch protection.

- Compressor stopped.

- Excessive refrigerant charge.

HP2

High pressure switch alarm, circuit 2.

The same as previous alarm but this time referring to circuit 2.

LP1

LP

Low pressure switch alarm, circuit 1.

This alarm may indicate the following problems:

- Low refrigerant.

- Outdoor fan stopped.

- Low pressure switch protection.

LP2

TP

T

TC1

TC2

LA ------

FLb ------

Low pressure switch alarm, circuit 2.

The same as previous alarm but this time referring to circuit 2.

Indoor fan thermal protection alarm:

- Fan thermal protection open.

- Faulty power supply.

Not used.

Not used.

Not used.

Not used.

E0

Regulation probe not found

E1

E2

E3

B1 probe error.

Faulty probe or connection.

B2 probe error.

Faulty probe or connection.

B3 probe error.

Faulty probe or connection.

E4

E5

E6

E7

E8

E00

B4 probe/pressure transducer error.

Faulty probe or connection.

Not used.

B6 probe error.

Faulty probe or connection.

B7 probe error.

Faulty probe or connection.

B8 probe/pressure transducer error.

Faulty probe or connection.

Hcl-4 Hc

Warning.

Compressor operating time limit exceeded.

Disabled by default.

EFFECT

Circuit 1 compressors stop

RE ACTION

AUTO/

MAN.

Reset and check:

- Coil is clean and not blocked.

- Outdoor fan during cooling cycle.

- Indoor fan during heating cycle.

After 3 times in

1 hour

- Compressor protection.

- Condenser air temperature is very high.

- Refrigerant charge.

Circuit 2 compressors stop

Circuit 1 compressors stop

AUTO/

MAN.

After 3t/h

The same as previous alarm but this time referring to circuit 2.

Reset and check:

- Coil is clean and not blocked.

AUTO/

MAN.

- Outdoor fan during heating cycle.

- Indoor fan during cooling cycle.

- Fuses of the fan.

After 3 times in

1 hour

- Evaporation air temperature is very low.

- Check refrigerant charge.

- Expansion valve.

Circuit 2 compressors stop

Unit stops

------

------

------

------

Unit stops

Unit stops

Unit stops

Unit stops

Unit stops

------

Unit stops

Unit stops

Unit stops

AUTO/

MAN.

After 3t/h

The same as previous alarm but this time referring to circuit 2.

MAN.

Reset and check:

- Fan.

- Power supply.

------

------

Call Technical Service.

Call Technical Service.

------

------

Call Technical Service.

AUTO

AUTO

AUTO

Call Technical Service.

Check the DC40 connection

Check the remote probe (B1) connection and configuration (/01)

Check connection of B1 probe (see electrical diagram), check continuity and change the faulty component.

Check connection of B2 probe (see electrical diagram), check continuity and change the faulty component.

AUTO

AUTO

Check connection of B3 probe (see electrical diagram), check continuity and change the faulty component.

Check connection of B4 probe/pressure transducer (see electrical diagram), check continuity and change the faulty component.

------

AUTO

AUTO

AUTO

Call Technical Service.

Check connection of B6 probe(see electrical diagram), check continuity and change the faulty component.

Check connection of B7 probe (see electrical diagram), check continuity and change the faulty component.

Check connection of B8 probe/pressure transducer (see electrical diagram), check continuity and change the faulty component.

------

AUTO

Check:

- Compressor operating time (parameter C10).

- Compressor operating time limit (par. C15).

HF1 ------

Warning.

Indoor fan operating time limit exceeded.

Disabled by default.

EPr ------

Warning.

Climatic 40 hardware error.

Epb

Warning.

------

------

------

Unit stops

AUTO

Check:

- Indoor fan operating time (parameter C15).

- Indoor fan operating time limit (par. C15).

AUTO Call Technical Service.

AUTO Call Technical Service.

ESP ESP

Expansion board error.

Unit stops AUTO

Check:

- Green LED is on inside the board.

- J4-J9 connections (see electrical diagram).

Call Technical Service.

EL1-2 ------

Warning.

Condensing fan speed control hardware error. dF1-2 -----d1-2 ------

Warning.

Circuit 1-2 defrost ends due to maximum time (8 minutes).

Warning.

Circuit 1-2 defrosting.

Outdoor fan at maximum speed.

------

------

26

AUTO

- Check CFM board connections (see electrical diagram).

Call Technical Service.

AUTO

------

ALARMS

ALARMS/WARNINGS CODES

DISP

CL40/

DC41

DISP

DC40

DESCRIPTION EFFECT RE ACTION

A1

A2

Antifreeze alarm.

A12

- AIRCOOLAIR / COMPACTAIR / FLATAIR circuit 1 indoor piping temperature < 2ºC. Reset AUTO.

Antifreeze alarm, circuit 2. (Aircoolair, Compactair,

Flatnair).

Circuit 2 indoor piping temperature < 2ºC. Reset

AUTO.

Ht ------

High ambient temperature warning.

Ambient temperature > 40ºC.

Lt ------

AHt ------

HLt ------

ELS ------

Warning the low ambient temperature.

Disabled by default.

Not used.

Not used.

Low power supply warning.

Power supply < 20.4V.

EHS ------

High power supply warning.

Power supply > 26.4V.

Ed1 ------

Ed2 ------

SH1 ------

SH2 -----nO1 -----nO2 ------

LO1 ------

LO2 ------

HA1 ------

HA2 ------

EP1 ------

EP2 ------

ES1 ------

ES2 ------

EU1 ------

EU3 ------

Eb1 ------

Eb2 ------

L ------

Ed1 ------

Ed2 ------

PH1 ------

PH2 ------

SUL -----tEr OcH

AcH

Ahu

AtE

CEr

UEr

EEP

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Not used.

Alarm, faulty communication between DC40 and Climatic 40. (AIRCOOLAIR/COMPACTAIR/FLATAIR)

Generic alarm.

Some active alarms on Climatic 40.

Not used.

DC40 internal probe alarm.

Faulty internal probe.

DC40 setting error.

DC40 hardware error.

DC40 hardware error.

Close freecooling air dumper and stops circuit 1

MAN/

AUTO compressors 1

Check:

- Indoor unit air filter.

- Air damper working correctly.

Close freecooling air dumper and stops circuit 1 compressors 2

AUTO

Check:

- Indoor unit air filter.

- Air damper working correctly.

------

------

------

------

------

Unit stops

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

------

Unit stops

------

------

------

------

------

------

AUTO

Check location of ambient probe; avoid places where measurement of the ambient temperature by the internal may be altered.

------

------

------

Call Technical Service.

Call Technical Service.

Call Technical Service.

AUTO Check power supply of controller = 24V (see electrical diagram).

AUTO Check power supply of controller = 24V (see electrical diagram).

------

------

------

------

------

Call Technical Service.

Call Technical Service.

Call Technical Service.

Call Technical Service.

Call Technical Service.

------

------

------

------

------

Call Technical Service.

Call Technical Service.

Call Technical Service.

Call Technical Service.

Call Technical Service.

Call Technical Service.

------

------

------

Call Technical Service.

Call Technical Service.

Call Technical Service.

------

------

------

Call Technical Service.

Call Technical Service.

Call Technical Service.

------

------

------

------

------

------

------

------

Call Technical Service.

Call Technical Service.

Call Technical Service.

Call Technical Service.

Call Technical Service.

Call Technical Service.

AUTO

Call Technical Service.

- DC40 connections (see electrical diagrams).

Call Technical Service.

-----Check Climatic 40 alarm code and act by accordingly.

-----Call Technical Service.

------

Call Technical Service.

------

------

------

Call Technical Service.

Call Technical Service.

Call Technical Service.

27

ALARMS

ALARM LOG

The Climatic 40 has a log where significant events that stop (alarms) or limit (warnings) the operation of the unit are saved.

In order to enter the Alarm Log menu, proceed as explained in chapter 3 MENU in the paragraph PARAMETERS EDITING MENU, entering the password 44 instead of 22.

Up to 25 events can be saved, highlighting in order: event code, start hours, start minutes, start day, start month, end hours, end minutes, end day, end month.

EVENT CODE START HOURS START MINUTES START DAYS

START MONTHS END HOURS END MINUTES END DAYS

END MONTHS

WARNING

The alarm log is active and operative only if the clock board is fitted.

If there are no alarms saved, “noH” is displayed.

28

NOTES

29

NOTES

30

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Due to Lennox’s ongoing commitment to quality, the Specifications, Ratings and Dimensions are subject to change without notice and without incurring liability.

Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury.

Installation and service must be performed by a qualified installer and servicing agency.

MUL43E-1011 04-2012

Original manual translation