Lennox CLIMATIC 40 User manual

Providing indoor climate comfort
CLIMATIC™ 40
MUL43E-1011 10-2011
Original manual translation
User manual

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1
2-3
4-6
7-8
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11-13
14
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15
16
16-17
17-18
19
20-22
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25-28
INDEX
CONTENTS PAGE
• INDEX
• DESCRIPTION OF CONTROLS
1.- CLIMATIC 40 CONTROL
2.- DC40 REMOTE TERMINAL (AIRCOOLAIR)
• MENU
• REGULATION
1.- AIRCOOLAIR /COMPACTAIR / FLATAIR
2.- AIRCUBE
• ADVANCED FUNCTIONS
1.- REMOTE ON/OFF
2.- REMOTE WINTER / SUMMER CHANGEOVER
3.- DYNAMIC SET POINT
4.- BMS COMUNICATIONS
5.- LOW NOISE
6.- ANALOGUE / DIGITAL INPUT
7.- TIMING AND DELAYS
8.- DEFROST
9.- CONDENSER FAN SPEED CONTROL
10.- FREE COOLING
• PARAMETERS
• SAFETY DEVICES
• INSTRUCTIONS FOR ASSEMBLY AND INSTALLATION
• ALARMS

2
AIRCOOLAIR / COMPACTAIR / FLATAIR AIRCUBE
DC 40
BM40 BM40
ASC-ASH / ADC-ADH
CSC-CSH / CMC-CMH / CDC-CDH
FMC/FSC-FMH/FSH
KSCM/KSHM
Climatic 40 control, is an electronic device that controls Aircoolair / Compactari / Flatair units (air-air units) and Aircube units (con-
densing 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.
Return / remote ambient, evaporator, temperature/pressure con-
denser and outdoor temperature probes.
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
Fan speed
control
Expansión
board
Return air
duct
temperature
Evaporator
temperature
Outside
temperature
Fan speed
control
Expansión
board
Free cooling
motor damper
1.- CLIMATIC 40 CONTROL
Return or
remote
ambient
temperature

3
J
I
KLA
B
C
D
E
G
F
H
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:
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).
1.1.- AIRCUBE
The main screeen shows:
- Ambient temperature for AIRCOOLAIR / COMPACTAIR / FLATAIR.
- 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.
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
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.

4
241 3 11
75 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
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 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.

5
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.
2.1.- TURN ON/OFF THE UNIT WITH REMOTE CONTROL DC40 (AIRCOOLAIR / COMPACTAIR / FLATAIR)
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 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.
2.4.- 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.
2.5.- SLEEP FUNCTION
2.6.- CLOCK SETTINGS
To turn on the unit press the “ ” button.
The display shows current operating mode.
DESCRIPTION OF CONTROLS
2.7.- 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.
NOTE: For units without remote control DC40, fan operating mode can be selected with parameter H05=1 (continuous operating
mode) or H05=2 (automatic operating mode).

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








23ºC
23ºC
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

7




b) Set password “ 22 ” by the
“ ” and “ ” buttons.
MENU
A) PROBES DISPLAY MENU
Press the “ ” button to enter probes display menu.
“ b01” or “b02”, 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:

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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

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SP 8 32 23 8 32 23 8 32 23
r2 0.3 50 1 0.3 50 2 0.3 50 3
r4 0.3 50 1 0.3 50 2 0.3 50 3
r7 0.3 50 0.5 0.3 50 0.5 0.3 50 0.5
A8 0 20 1.5/2.5 0 20 1.5/3.5 0 20 1.5/4.5
A9 0.3 50 1 0.3 50 1 0.3 50 1
A11 0 20 2.5/3.5 0 20 2.5/4.5 0 20 4.5
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 (with DC40)
(Heat pump)
1.3- AFFECTED PARAMETERS
2.- AIRCUBE
Aircube is regulated by digital input. (see section 7, advanced functions, for more details).
HEAT COOL
HEAT COOL
Ambient
temperature (ºC)
Ambient
temperature (ºC)
Par. DESCRIPTION UNIT 1 COMPRESSOR UNIT 2 COMPRESSORS UNIT 3 COMPRESSORS
MIN. MAX. DEF. MIN. MAX. DEF. MIN. MAX. DEF.
Set point (DC40).
Cooling differential.
Heating differential.
Dead zone.
SP E.H. 1 stage (cooling only/heat pump)
Differential E.H.
SP E.H. 2 stages (cooling only/heat pump)
1.2- AUTOMATIC MODE
(Cooling only+Electrical heater)
NOTE: With option Modbus, set point SP is managed through communications instead of DC40 (see table for Modbus parameters)

10
SP (DC40) = 24ºC
r17 = 0.2
r18 = 2ºC
r19 = 35ºC
SP (DC40) = 21ºC
r18 = 2ºC
r20 = 6ºC
r31 = 0.2
SP
19ºC
21ºC
-4ºC 6ºC
SP
24ºC
26ºC
35ºC 45ºC
r18
SP (DC40)
r20
r18
SP (DC40)
r19
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.
2.- REMOTE CHANGEOVER WINTER/SUMMER
On heat pump units (also in Aircoolair / Compactair / Flatair cooling only + electrical heater), cooling or heating mode can be selec-
ted 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.
3.- DYNAMIC SET POINT
AIRCOOLAIR / COMPACTAIR / FLATAIR
WARNING
On Aircoolair units, remote changeover doesn’t work if the automatic mode has been selected by DC40.
Set point ºC COOL Set point ºC
HEAT
SP = SP(DC40) + (T.ext. - r19) x r17
EXAMPLE
SP = SP(DC40) + (T.ext. - r20) x r31
EXAMPLE
Outdoor temp.. ºC Outdoor temp.. ºC
Outdoor temp.. ºC Outdoor temp.. ºC
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 congurate the parameters explained in the picture below:
*To activate P09 use password 66.

11
GND
+
-
120Ω
120Ω
ADVANCED FUNCTIONS
4.- BMS COMMUNICATIONS
OPTION
BMS (Building Management Systems) are systems to integrate all technological functions of a building, including access control,
security, detection of res, lights, elevators and air conditioning.
Given the growing and unstoppable trend towards Building Automation, the Climatic 40 controller offers the possibility of commu-
nicating 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 RS485 (EIA/ TIA-485 standard)
Transmission mode RTU (Terminal of remote unit)
Speed 9600 Baudios
Bits of data 8 bits
Parity None
Stop bits 2 bit
Addresses Base 0
4.1 – MODBUS NET CONFIGURATION
With option Modbus communication, Climatic 40 controller is delivered congured and ready for communications. The only parame-
ter which is needed to adjust is the device address (H10).
Without option Modbus communication change parameters H23=1 and H24=0 to enable the option.
Connect the net like in gure below:
• 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 specic 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.
With problems to nd all the devi-
ces connected, please conect this
resistance.

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0 1 Flag 1 R 41
0 1 Flag 1 R 42
0 1 Flag 1 R 45
0 1 Flag 1 R 46
0 1 Flag 1 R/W 78
0 1 Flag 1 R 53
0 1 Flag 1 R 54
0 1 Flag 1 R 55
0 1 Flag 1 R 56
0 1 Flag 1 R 57
0 1 Flag 1 R 59
0 1 Flag 1 R 60
0 1 Flag 1 R 61
0 1 Flag 1 R 62
0 1 Flag 1 R 63
0 1 Flag 1 R 66
0 1 Flag 1 R 67
0 1 Flag 1 R 68
0 1 Flag 1 R 69
0 1 Flag 1 R 70
0 1 Flag 1 R 72
0 1 Flag 1 R 73
0 1 Flag 1 R 74
0 1 Flag 1 R 75
0 1 Flag 1 R 76
- / 400 800 ºC 0,1 R 102
- / 400 800 ºC 0,1 R 103
- / 400 800 ºC / Dbar 0,1 R 104
- / 400 800 ºC 0,1 R 105
- / 400 800 ºC 0,1 R 106
- / 400 800 ºC 0,1 R 107
- / 400 800 ºC 0,1 R 108
- / 400 800 ºC / Dbar 0,1 R 109
- / 400 800 ºC 0,1 R 128
Parameters and description min. máx. U.O.M. resol. R/W Modbus
address
Type of
variable
ALARMS
Circuit 1 alarm Digital
Circuit 2 alarm Digital
Indoor fan alarm/ Water pump alarm Digital
Alarm sensor Digital
Alarm reset Digital
INPUTS AND OUTPUTS
Digital input 1 Digital
Digital input 2 Digital
Digital input 3 Digital
Digital input 4 Digital
Digital input 5 Digital
Digital output 1 Digital
Digital output 2 Digital
Digital output 3 Digital
Digital output 4 Digital
Digital output 5 Digital
Digital input 6 Digital
Digital input 7 Digital
Digital input 8 Digital
Digital input 9 Digital
Digital input 10 Digital
Digital output 6 Digital
Digital output 7 Digital
Digital output 8 Digital
Digital output 9 Digital
Digital output 10 Digital
SENSORS
Sensor value B1 Analogic
Sensor value B2 Analogic
Sensor value B3 Analogic
Sensor value B4 Analogic
Sensor value B5 Analogic
Sensor value B6 Analogic
Sensor value B7 Analogic
Sensor value B8 Analogic
Sensor value DC40 Analogic
ADVANCED FUNCTIONS
4.2 - PARAMETERS TABLE
U.O.M.= Measurement unit
Resol. = Solution
R/W = Reading/ Writting

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0 1 Flag 1 R/W 64
0 8 Flag 1 R/W 291
0 1 Flag 1 R/W 65
* * ºC 0.1 R/W 41
* * ºC 0.1 R/W 43
* * ºC 0.1 R/W 61
* * ºC 0.1 R/W 55
* * ºC 0.1 R/W 56
0 5 Flag 1 R/W 263
0 255 Flag 1 R 341
0 3 Flag 1 R/W 292
0 9 Flag 1 R/W 326
0 100 % 1 R/W 327
0 23 h 1 R/W 336
0 59 min 1 R/W 337
0 31 día 1 R/W 338
0 12 mes 1 R/W 339
0 99 año 1 R/W 340
0 23 h 1 R/W 299
0 59 min 1 R/W 300
0 23 h 1 R/W 301
0 59 min 1 R/W 302
0 23 h 1 R/W 303
0 59 min 1 R/W 304
0 23 h 1 R/W 305
0 59 min 1 R/W 306
0 23 h 1 R/W 307
0 59 min 1 R/W 308
0 23 h 1 R/W 309
0 59 min 1 R/W 310
0 23 h 1 R/W 311
0 59 min 1 R/W 312
0 23 h 1 R/W 313
0 59 min 1 R/W 314
ADVANCED FUNCTIONS
4.2 - PARAMETERS TABLE.
Parameters and description min. máx. U.O.M. resol. R/W Modbus
address
Type of
variable
UNIT CONTROL
Unit status (1=ON ó 0=standby) Digital
Status auto /manual (0=Manual ó 1=Automatic) Analog
Status cooling / heating (1=Cooling or 0=Heating )
(Writting is possible only with auto/manual = 0 manual)
Digital
CL40 cooling setpoint (with auto/manual = 0 manual) Analog
CL40 heating setpoint (with auto/manual = 0 manual) Analog
CL40 Auto setpoint (with auto/manual = 1 auto) Analog
CL40 Second cooling setpoint Analog
CL40 Second heating setpoint Analog
Fan indoor operation mode
1 = always ON 2 = Automatic 3 = Anti-stratication
WARNING: Do not change this value into 0, otherwise fan
will be desactivated
Analog
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
Analog
Low noise activation
0= disabled 1= enable in cooling
2= enable in heating 3= enable in cooling and heating
Analog
Minimum conguration of fresh air
0= disabled 1= with freecooling enable
6= with freecooling disabled 7= always
8= cooling mode 9= heating mode
Analog
Minimum fresh air % Analog
CLOCK CONFIGURATION
Real time : hours Analog
Real time : minutes Analog
Real time: day Analog
Real time : month Analog
Real time: year Analog
Start hours for 2nd set point in cooling Analog
Start minutes for 2nd set point in cooling Analog
End hours for 2nd set point in cooling Analog
End minutes for 2nd set point in cooling Analog
Start houts for 2nd set point in heating Analog
Start minutes for 2nd set point in heating Analog
End hours for 2nd set point in heating Analog
End minutes for 2nd set point in heating Analog
Start hours for 2nd set point low noise cooling Analog
Start minutes for 2nd set point low noise cooling Analog
End hours for 2nd set point low noise cooling Analog
End minutes for 2nd set point low noise cooling Analog
Start hours for 2nd set point low noise heating Analog
Start minutes for 2nd set point low noise heating Analog
End hours for 2nd set point low noise heating Analog
End minutes for 2nd set point low noise heating Analog

14
40%
100%
0% 18 18.5 20 23 23.5 25 26 31
_______
- - - - - - -
ADVANCED FUNCTIONS
5.- LOW NOISE
Low noise cooling mode shift is illustrated in the following picture.
SPEED FAN
CONDENSER
PRESSURE (bar)
COOLING HEATING
TIME FAN TIME FAN
Rest of day Standard Rest of day Standard
Start (hour:minutes)
t14:t15 LOW
NOISE
Start (hour:minutes)
t18:t19 LOW
NOISE
End (hour:minutes)
t16:t17 End (hour:minutes) t20:t21
Standard
“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 (specically 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.
Also set the following parameters:
BM40: =1; B00=0; R23=1;
DC40: En05=1
Programming mode:
Press and then during seconds to select the value. Press continously to conrm and leave programming mode.
programación

15
ID1 ID2 ID3 ID4 ID5 ID6 ID7 ID8 ID9
ID10
AIRCOOLAIR COMPACTAIR AIRCUBE FLATAIR 2
20...85 100...140 020...040 045...100 22...86 112...246 10...30
ASC ASH ASC ASH CMC CMH CMC CMH KSCM KSHM KSCM KSHM FMC/FSC FMH/FSH
DC40 (b21)
b1 b2 b3 b4 b6 b7 b8
7.- ANALOGIC / DIGITAL INPUT
ADVANCED FUNCTIONS
INLETS
(F7) Thermal protection
indoor fan
(F7) Thermal protection
indoor fan
(F7) Thermal protection
indoor fan
(F7) Thermal protection
indoor fan
(F7) Térmico
ventilador interior
(F7) Térmico
ventilador interior
(F7) Térmico
ventilador interior
Cooling/
Heating
Cooling/
Heating
Cooling/
Heating
Cooling/
Heating
Cooling/
Heating
Cooling/
Heating
Cooling/
Heating
HIGH PRESSURE
circuit 1
HIGH PRESSURE
circuit 1
HIGH PRESSURE
circuit 1
HIGH PRESSURE
circuit 1
HIGH PRESSURE
circuit 1
HIGH PRESSURE
circuit 1
HIGH PRESSURE
circuit 1
(LP1) LOW PRESSURE
circuit 1
(LP1) LOW PRESSURE
circuit 1
(LP1)LOW PRESSURE
circuit 1
(LP1)LOW PRESSURE
circuit 1
(LP1) LOW PRESSURE
circuit 1
(LP1) LOW PRESSURE
circuit 1
LOW PRESSURE
circuit 1
ON / OFF ON / OFF ON / OFF ON / OFF STEP 1 STEP 1 ON / OFF
STEP 2 STEP 2
STEP 3
HIGH PRESSURE
circuit 2
HIGH PRESSURE
circuit 2
HIGH PRESSURE
circuit 2
HIGH PRESSURE
circuit 2
(LP2) LOW PRESSURE
circuit 2
(LP2) LOW PRESSURE
circuit 2
(LP2) LOW PRESSURE
circuit 2
(LP2) LOW PRESSURE
circuit 2
STEP 4
PROBES
Ambient
probe
Ambient
probe
Ambient
probe
Ambient
probe
Ambient
probe
(AS/RS) Remote ambient
probe/ Return probe *
(AS/RS) Remote ambient
probe/ Return probe *
(AS/RS) Remote ambient
probe/ Return probe *
(AS/RS) Remote ambient
probe/ Return probe *
(AS/RS) Remote ambient
probe/ Return probe *
(IS1) Indoor coil probe 1 (IS1) Indoor coil probe 1 (IS1) Indoor coil probe 1 (IS1) Indoor coil probe 1
(IS)
Indoor coil probe 1
(TS1) Conden-
sing temp. 1
(OS) Outdo-
or Tª probe (OS) Outdoor Tª probe (OS) Outdoor Tª probe (OS) Outdoor Tª probe
(TS1)
Outdoor
Tª probe
(OS)
Outdoor Tª probe
(OS) Outdo-
or Tª probe
(PT1) Conden-
sing pressure 1
(PT1) Conden-
sing pressure 1
(PT1) Conden-
sing pressure 1*
(PT1) Conden-
sing pressure 1
(PT1) Conden-
sing pressure 1*
(PT1) Conden-
sing pressure 1
(PT1)
Conden-
sing pressure 1
(PT1)
Conden-
sing pressure 1
(PT)
Conden-
sing pressure 1*
(PT)
Conden-
sing pressure 1
(IS2) Indoor coil probe 2 (IS2) Indoor coil probe 2 (IS2) Indoor coil probe 2
(TS2)
Conden-
sing temp. 2
(TS2) Conden-
sing temp. 2
(PT2)
Conden-
sing pressure 2
(PT2)
Conden-
sing pressure 2
(PT2)
Conden-
sing pressure 2*
(PT2)
Conden-
sing pressure 2
(PT2)
Conden-
sing pressure 2
(PT2)
Conden-
sing pressure 2
NOTE: Some probes can change, according to the options selected with the unit. * Option.

16
120 2
3005
ON ON
ON
ON
CM2
CM1
30
60”
60”
30” 30”
60”
ADVANCED FUNCTIONS
COMPRESSOR
8.- TIMING AND DELAYS
In order to protect compressors from destructively cycling on and off, following protection delays have been set:
Time
(sec.)
unit
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.
9.- DEFROST
Condenser pressure
(bar)
Compressors
Reverse valve
HEAT DEFROST HEAT
MINIMUM ON = 30 sec.
MINIMUM OFF = 30 sec.
9.1 - DEFROST CYCLE

17
40%
100%
0% 18 18.5 20 26
10%
100%
0% 18 18.5 24 30
ADVANCED FUNCTIONS
CONDENSER PRESSURE
(bar g)
OUTDOOR
TEMPERATURE (ºC)
Dynamic defrosting cycle starting ( according to outdoor temperature) allows to reduce the number and time of defrosting cycles in
winter to achieve better unit efciency.
10.- CONDENSER FAN SPEED CONTROL
FAN
SPEED
CONDENSER PRESSURE (bar)
10.1.- PROPORTIONAL CONTROL BASED ON PRESSURE
Models:
FAN
SPEED
CONDENSER PRESSURE (bar)
9.2 - DYNAMIC DEFROST
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)

18
40%
100%
0% 18 19 28 40
0ºC
22 bar
15ºC
28 bar
30ºC
30 bar
35ºC
37 bar
+7ºC
20 bar 24 bar
ON
OFF
16 bar 22 bar
ON
OFF
ADVANCED FUNCTIONS
Models: AIRCOOLAIR: ASC 20-85
AIRCUBE: KSCM 22E-86D
FAN
SPEED
CONDENSER
TEMPERATURE (ºC)
10.3.- ON/OFF CONTROL BASED ON PRESSURE
Models: AIRCOOLAIR: ASC/ASH 100-140
AIRCUBE: 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:
High speed
Low speed
High speed
Low speed
Outdoor temperature ºC
COOLING MODE HEATING MODE
Approx. outside temperature ºC
Condensing pressure
NOTE*: FLATAIR and COMPACTAIR standard models have not included condensing pressure control ( fan starts with the com-
pressor), for heat pump units control can be activated with parameter F02=2.
10.2.- PROPORTIONAL CONTROL BASED ON PRESSURE TEMPERATURE
Models: COMPACTAIR CSC/CMC+kit 0ºC CSH/CMH
FLATAIR FSC/FMC+kit 0ºC, FSH/FMH
Condensing pressure Evaporating pressure

19
CM2
CM3
CM1
23 23.5 24 26
SP
24.5
R02/4
23 23.5 25
r40 0 9 1
r41 0 100 20
ADVANCED FUNCTIONS
11.- FREE COOLING
This option takes advantage of external conditions for 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 fully opened in order to refresh with outdoor air only (sufcient under
these conditions).
- >10ºC, the air intake gate opens and delays the compressors, which turn on only if there would be insufcient outdoor fresh air
to achieve the comfort setpoint.
The illustration below shows freecooling regulation.
With free cooling
Open air damper.
Close air damper.
Without freecooling
Stop air damper.
Ambient temperature (ºC)
Ambient temperature (ºC)
OPTION
To get a constant air renewal, when freecoling conditions are satised, the damper is mantained opened partially (20%), according to
the following values.
Par. DESCRIPTION Min. Max. Def.
This indicates when to carry out the minimum opening of the damper.
0= Never.
1= with freecooling.
2= with freeheating.
3= with freecooling and freeheating
4= always, except with freecooling y freeheating.
5= always, except with freeheating.
6= always, except with freecooling.
7= always
8= only for cooling mode.
9= only for heating mode.
% minimum percentage opening damper.