Lennox Basic Climatic Controller Ecologic User manual

BASIC CLIMATIC
CONTROLLER
Basic ClimaticTM
Controller
Ecologic

IOM BASIC CLIMATIC CONTROLLER - Page 1
The manufacturing ECOLOGIC™ family of chillers answers to ISO 9001 control quality
system. A copy of the certificate can be get on request.
Due to LENNOX on going commitment to quality, specifications subject to change without notice and without incurring liability
Our products comply with the European standards.
Our company is a member of the Eurovent Certification Programme. The ECOLOGIC™ Lennox
chillers are tested and rated in accordance with Eurovent certification program.
CONTENTS
PAGE
GENERAL DESCRIPTION 3
USER INTERFACE 4
The keypad incorporated on the unit 4
The keypad remote controller (option) 5
Key functions 6
Function 7
How to get parameters and devices 8
Menu structure 9
PARAMETERS 10
Set point thermostat function description 10
Condensation fan control 11
Fan control in cool mode 12
Modify parameters 13
Parameters lists 14
ALARM 19
Alarms 19
Diagnostics 21
Alarm codes 22
TECHNICAL DATA 23
USE OF DEVICE 26
GLOSSARY 27
LENNOX have been providing environnemental solutions since 1895, our range of air cooled
Chillers continues to meet the standards that have made LENNOX a household name.
Flexible design solutions to meet YOUR needs and uncompromising attention to detail.
Engineered to last, simple to maintain and Quality that comes as standard.

Page 2 - IOM BASIC CLIMATIC CONTROLLER
COPYRIGHT
All the technical and technological information contained in this manual, including any drawing and
technical descriptions provided by us, remain the property of Lennox and must not be utilised (except
in the operation of this product), reproduced, issued to or made available to third parties without the
prior written agreement of Lennox.

IOM BASIC CLIMATIC CONTROLLER - Page 3
This equipment is an electronic device that controls
packaged water cooling systems.
The thermostat allows the following operations:
- Unit ON/OFF
- Select system operating mode
- Set point adjustment
- Alarm signal relay
- Display temperature
- Status of the unit alarms
- Possibility of remote ON/OFF.
- A remote controller as an option
The control supplied incorporated on the unit contains the
following devices:
REGULATION:
The control makes the system regulation as follow:
- The signals of analogue inputs through the inlet and outlet
temperature and from the refrigerant piping temperature.
- Receives digital inputs through the status of low, high and
pressostat, flow switch (water flow) status and from electrical
protection of fans and compressor.
According to the valves and status of analogue and digital
inputs manages.
The out put signals; compressor, fan and water pump
operating, obtaining the regulation of the inlet water
temperature to the unit, regulating the speed of the air fan
volume, output signals water.
Heater, water tank heater, and hot gas valve (all these
elements are an option) used to protect the unit, and also
activates the alarm codes about, setting pressurestat, flow
switch, water flow, and the electrical protection of fan and
compressor (see alarm section).
- A group of parameters allow the control be programmed
for each application within factory set limitations.
GENERAL DESCRIPTION
The control supplied incorporated on the unit
contains the following devices :
CLIMATIC BASIC CONTROLLER
- Keypad
Located within the unit.
- Control Module
Located at the electrical box
This device controls the operation of the unit,
allowing the regulation of the system.
- Fan Control
Located at the electrical box
Allows the fan voltage to be varied in respect of the
condensing temperature.
A remote controller is offered as an option.
To install this optional remote controller proceeded
as
follow:
- Connect exactly as indicated in electrical diagram
- The wire should not exceed 50 m.
The three cables for connection from the keypad
to the power board must be kept separate from
other cables, using an individual cable channel;
and use shielded cables, with a cross-section of
1 mm 2.
Keypad located
within the unit
Control Module
Fan control plate
Terminal block
Electrical box at the unit
Remote controller (optional)
Three-lead shielded cable
with a cross-section of 1mm2
* Connection to be made by user MAXIMUM LENGTH 50m

Page 4 - IOM BASIC CLIMATIC CONTROLLER
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READING DISPLAY
This is the 3-digit display, The inlet water
temperature is shown in degrees (default), ºC (when
shows decimal
point), o ºF (do not show the decimal point) . The
following can also be displayed:
- Values of all parameters controlled by the
equipment:
- Cooling set point, cooling differential temperature
- Outlet water temperature (as security)
- Inlet water temperature (regulation)
- Alarm codes.
- The status of all machine functions (operating
hours, delay time etc.)
COMPRESSORS LED
When this LED is continually lit it indicates that the
compressor is operating; however, when it flashes this
indicates that pausing is taking place which is delaying the
compressor start.
MODE / UP BUTTON
Selects the operating mode between the following:
Stand-by / Cool In menu mode, this button acts as a
scroll up or up key (increasing value).
READING DISPLAY
ELECTRICAL HEATER LED
When this LED is continually lit it indicates
that the internal anti-freeze electrical heater
is on, if the led is off, the internal anti-freeze
is off.
ON - OFF / DOWN BUTTON
Turn the unit ON and OFF, Press once to
reset all manually reset alarms not currently
active; all the alarm events per hour will
also be reset even if the alarms are not
active. In menu mode this key acts as a
scroll down or down key (decreasing value).
MODE - ON / OFF BUTTON
Pressing both buttons at he
same time, gets to the menu
level. They also lets move one
level up or down in the menu.
COOLING MODE LED
When this LED is continually lit it
indicates that the unit is operating
in cooling mode.
When the led COOLING is not lit,
it indicates that the operating
mode selected is STAND-BY.
NOT USED

IOM BASIC CLIMATIC CONTROLLER - Page 5
THE KEYPAD REMOTE CONTROLLER (OPTION)
READING DISPLAY
This is the 3-digit display, The inlet water temperature is shown in degrees (default), ºC (when shows
decimal
point), o ºF (do not show the decimal point) . The following can also be displayed:
- Values of all parameters controlled by the equipment:
- Cooling set point, cooling differential temperature
- Heating set point (heat pump units) and heating differential temperature
- Outlet water temperature (as security)
- Inlet water temperature (regulation)
- Defrost temperature
- Alarm codes.
- The status of all machine functions (operating hours, delay time etc.)
COOLING MODE LED
When this LED is continually lit it
indicates that the unit is operating
in cooling mode.
When the led COOLING is not lit,
it indicates that the operating
mode selected is STAND-BY.
COMPRESSOR LED
When this LED is continually lit it indicates
that the compressor is operating (in heating
or cooling mode, depending on the operating
mode selected); however, when it flashes this
indicates that pausing is taking place which
is delaying the compressor start.
LED 1: Compressor circuit 1
LED 2: Compressor circuit 2
ELECTRICAL HEATER LED
When this LED is continually lit it
indicates that the internal anti-
freeze electrical heater is on, if the
led is off, the internal anti-freeze
is off.
ON - OFF BUTTON
Turn the unit ON and OFF, Press
once to reset all manually reset
alarms not currently active; all the
alarm events per hour will also be
reset even if the alarms are not
active.
MODE BUTTON
Selects the operating mode between the following:
Stand-by / Cool
MODE - ON / OFF
BUTTON
Pressing both buttons
at he same time, gets
to the menu level
They also lets move
one level up or down
in the menu.
DOWN BUTTON
In menu mode this key acts
as a scroll down or down
key (decreasing value).
UP BUTTON
In menu mode, this
button acts as a
scroll up or up key
(increasing value).
NOT USED

Page 6 - IOM BASIC CLIMATIC CONTROLLER
Key FunctionsKey Functions
Key FunctionsKey Functions
Key Functions
Mode
Selects operating mode:
Stand-by !cooling !stand-by
In menu mode, this key acts as a
SCROLL UP or UP key (increasing
value).
Resets alarms, and turns the Chiller
on and off.
Press once to reset all manually
reset alarms not currently active; all
the alarm events per hour will also be
reset even if the alarms are not active.
Hold down the key for 2 seconds to
turn the Chiller from on to off or vice
versa. When it is off, only the decimal
point remains on the display.
In menu mode this key acts as a SCROLL DOWN or
DOWN key (decreasing value).
Pressing the "mode" and "on-off" keys at the same
time:
If you press both keys at the same time
and then release within 2 seconds, you
will move one level deeper in the display
menu.
If you press both keys for more than 2
seconds you will move one level up.
If you are currently viewing the lowest
level in the menu and you press both
keys and release within 2 seconds, you will go up one
level.
Display
The device can communicate information of all kinds
on its status, configuration, and alarms through a
display and a number of leds on its front panel.
Display
Normal display shows:
Water temperature in tenths of degrees Celsius
or Fahrenheit
Alarm code, if at least one alarm is active. If
multiple alarms are active, the one with
greater priority will be displayed, according to
the Table of Alarms.
Otherwise, in menu mode, the display
depends on the current position; labels and
codes are used to help the user identify the
current function.
Led Indications
Circuit 1 / Circuit 2
Compressor Status
ON - if at least one compressor of the
circuit 1 is active
OFF- if all compressors of the circuit are
off
RAPID BLINK - safety timing is in
progress, on the activation of first Compressor in that
Circuit (all compressors are OFF)
Slow BLINK if circuit 1 is currently set to defrost
Cooling Mode
NOT USED
Auxiliary Heating ON

IOM BASIC CLIMATIC CONTROLLER - Page 7
FUNCTION
UNIT COMMISSIONING
When all the instructions in the Operating, Service and
Installation Manual have been carried out, the unit can
be commissioned as follows:
POWER SUPPLY TO THE UNIT
- Set the general cut-off switch to ON (if included), when
the unit gets under power supply the display will lights
up.
TURN ON/OFF THE UNIT.
- Pressing button during more than two seconds ,
lets you turn on or OFF the unit. The display will show
the inlet water temperature or an alarm indication, if
E 00 shows, indicates that the unit has been turn off by
the remote, located between 93 and 94 terminal
at the electrical box, If the unit does not incorporate
this switch, verify that a link is between these terminals,
and the leds on the display will lit (see alarm section).
To turn off the unit press button during more than
2 seconds, before disconnect power supply, wait until
water pump stops.
SELECTING THE UNIT'S OPERATING MODE
The operating mode is always indicated on the display
by leds. Pressing the button repeatedly you can
change the unit operating mode, and select the required
one :
COOL : The unit is working in cooling mode, the LED
will lights up in the display
STAND BY : The unit is working in stand-by, none LED
will lights up.
Once cool have been selected water pump will turn
on. If cool is the unit's operating mode selected and
the inlet water temperature exceeds the cooling the
set point, there will be a demand for the compressor to
start, then the compressor LED start blinking, which
indicates that the compressor starts, is delayed
because of anticycle protection, after of this,
compressor start and LED gets set.
NOTE : When unit is not going to be operating during
long periods of time do not turn off power supply or
antifreeze protection may be isolated.
SELECTING THE UNIT'S OPERATING MODE
To modify the set point of the unit follow the steps:
Press the buttons and simultaneously and
release within two seconds, the display will
show up
Press the buttons and again, the display will
show up (cooling set point)
Pressing the buttons and ,the display will show
up (heating set point)
Once positioned on the set point which should be
changed or
Press the buttons and simultaneously and
release within two seconds, and the display shows up
the actual set point, and with buttons or may
change the set point, between a maximum and a
minimum values.
Once the set point have been changed press and
simultaneously.
To get to the display value, press and
simultaneously during more than two seconds, the
display will show up press again and
during more than two seconds, and you will be on the
display value.

Page 8 - IOM BASIC CLIMATIC CONTROLLER
-----
-----
---
Visualizes:
Inlet water temperature
Active alarms
LEVEL 1 LEVEL 2 LEVEL 3
SET POINT
PROBE STATUS
ALARMS
PARAMETERS
PASSWORDS
OPERATING HOURS
Cooling set point
Codes
Set point value
Probe value
Active Alarms codes
Password value (number)
Compressor
operating hours
Water pump operating hours
Amount of hours
Amount of hours
HOW TO GET pARAMETERS AND DEvices
A parameter is an internal program reference containing
important values which can be set to allow the user or
installer to ensure proper operation of the unit.
A device is, the status list of the elements that
comprises the system. Getting to the menu mode
enable the user to obtain a status list for the unit's
devices, this can be used to read the probe
temperatures or the operating hours for example.
All parameters and devices are structure on levels of
visualization as shown bellow:
HOW TO GET TO MENU MODE
Press and buttons and release within two
seconds, to enable the user to get to the menu mode
To move through the menu on this way !
Press and buttons simultaneously and
release within two seconds.
To move through the menu on this way "
Press and buttons simultaneously during
more than two seconds.
To move through the menu on this way ##
##
#, press:
To move through the menu on this way $$
$$
$, press:
MENU STRUCTURE
Water temperature adjustment menu
Status temperature probes menu
ST1: Inlet water temperature
ST2: Outlet water temperature
ST3 and ST6: Piping temperature
Active alarms Menu
Configuration parameters menu
Password to access
to parameters configuration
Operating hours resources management
(compressor, water pump)
NOTE: When leds on the display lit alternative from
one to the other. You are on menu mode.
DISPLAY MENU

IOM BASIC CLIMATIC CONTROLLER - Page 9
Set point :
Analogue Inputs :
Alarms :
Digital Inputs :
Parameters :
Passwords :
Op. hours :
Label coolng set :
Configuration par :
Compressor par :
Fan control par :
Alarm par :
Pump par :
Antifreeze par :
Defrost par :
Expansion par :
Input index :
Parameters index :
Comp. hours :
Pump hours :
Parameters index :
Parameters index :
Parameters index :
Parameters index :
Parameters index :
Parameters index :
Parameters index :
Parameters index :
Value cooling set
Analogue value
Current alarms
Status of digital
inputs
Parameter value
Parameter value
Parameter value
Parameter value
Parameter value
Parameter value
Parameter value
Parameter value
Password value
Number of hours
Number of hours
MENU STRUCTURE

Page 10 - IOM BASIC CLIMATIC CONTROLLER
SET POINT THERMOSTAT FUNCTION DESCRIPTION
LEVEL 1
DISPLAY LEVEL 2 LEVEL 3
Visualizes:
Inlet water temperature
Active alarms
SET POINT
Cooling set point Set point value
See page 8, for adjustment of set point of the system
The water temperature is thermostatically controlled
via a set point and a tolerance range (differential)
The operation of these parameters is shown in the
following diagram.
COOLING OPERATING MODE
Operation with one compressor is as shown in the
diagram taking into account that the temperature above
which the controller takes over is the inlet water
temperature. When this temperature exceeds the set
point + tolerance range (differential) the compressor
starts to produce cool water. When inlet water
temperature gets bellow the set point the compressor
stops. For example: if set point = 10°C and tolerance
range (differential)= 2°C, the compressor will operate
when the return water temperature exceeds 10°C and
switch off when it returns at 10ºC, and turn on again
when the temperature reaches 12ºC.
COMPRESSOR COMPRESSOR
STEP 1 STEP 2
COMPRESSOR COMPRESSOR
COMPRESSOR COMPRESSOR
SET POINT SET POINT + SET POINT
Differential
UNITS WITH 1 COMPRESSORS UNITS WITH 2 COMPRESSORS

IOM BASIC CLIMATIC CONTROLLER - Page 11
Condensation fan control
<IMG INFO>
36
,
75
Condensation control is dependent on the condensation
temperature or pressure for the circuit.
Fan control will be on if:
at least one probe per circuit is configured as a
condensation probe (pressure or temperature);
if not, the fan for the circuit will come ON and go OFF
in response to the circuit compressors.
Fan control may be independent of the compressor, or
it may be carried out in response to requests from
HyperCodex152compressors;
Operating mode is determined by parameter Pa F05:
Value
01
Pa F05: If the compressor is off, condensation control is
fan output mode the fan is off independent of the compressor
When the compressor is started up, if the proportional
control requests fan cut-off, the cut-off may be excluded
for an amount of time equal to Pa F12 beginning when
the compressor is turned on. If the controller requests
cut-off during this time period, the fan will run at
minimum speed.
If parameter Pa F05 is set to 1, condensation control
will be dependent on condensation temperature or
pressure, depending on how the following parameters
are set:
Silent speed :
The fan control unit may have a minimum speed, a
maximum speed, and a “silent” speed (for silent
operation, for instance during the night), as well as a
proportional band within these values.
The fan will always be off if:
there is an alarm indicating that a condensation fan
has shut down (refer to table of alarms).
Energy 200 is on stand-by or off
CONDENSATION FAN CONTROL IN COOL MODE :
Pa F06 = Minimum fan speed in COOL mode;
Pa F07 = Maximum silent fan speed in COOL mode
Pa F08 = Minimum fan speed temperature/pressure
set point in COOL mode
Pa F09 = Fan prop. band in COOL mode
Pa F10 = Fan cut-off delta
Pa F11 = Cut-off hysteresis.
Pa F13 = Maximum fan speed in COOL mode
Pa F14 = Maximum fan speed temperature/pressure
set point in COOL mode
An example of interaction of these parameters is shown
in the figure below:

Page 12 - IOM BASIC CLIMATIC CONTROLLER
fan control in cool mode
Diagram :

IOM BASIC CLIMATIC CONTROLLER - Page 13
MODIFY PARAMETERS
DISPLAY
Visualizes:
Inlet water temperature
Active alarms Press
Press
Press Press
PARAMETERS
Parameters value
Parameters value
Parameters value
Parameters value
Parameters value
Parameters value
Parameters value
Vizualisation parameters
HOW TO GET TO PARAMETERS MENU
Press and buttons and release within two
seconds, the display will show up
To move through the menu on this way !
Press and buttons simultaneously and
release within two seconds.
To move through the menu on this way "
Press and buttons simultaneously during
more than two seconds.
To move through the menu on this way ##
##
#, press:
To move through the menu on this way $$
$$
$, press:
To access to parameters modification, a password
should be includes to the system, this is not necessary
if you want to visualize the parameters
Visualizes:
Inlet water temperature
Active alarms Press
Press
Press
Press
PASSWORD Insert password
General configuration parameters of the unit (Values (F))
General configuration parameters of the unit (Values (H))
Parameters configuration concerning to compressor (Values (C))
Parameters configuration concerning to fan and defrost control (Values (F))
Parameters configuration concerning to active alarms (Values (A))
Parameters configuration concerning to water pump (Values (P))
Parameters configuration concerning to anti-freeze (Values (r))
Parameters configuration concerning to defrost cycle (Values (d))
Parameters configuration concerning extension card (Values (n))

Page 14 - IOM BASIC CLIMATIC CONTROLLER
parameters lists
Settings Access
Ref. Control Setpoints Unit Min Max Factory General Password
Factory
Adjust. Hidden
G01 Cooling Setpoint °C 6 12 6.5 X
G02 Heating Setpoint °C 0 0 0 - - X X
Settings Access
Ref. Configuration Parameters Unit Min Max Factory General Password
Factory
Adjust. Hidden
H01 Maximum Heating Set Point °C 0 90 0 - - X X
H02 Minimum Heating Set Point °C -40 0 0 - - X X
H03 Maximum Cooling Set Point °C 6 90 12 X- -
H04 Minimum Cooling Set Point °C -40 12 6 - X X
H05 Number of Circuits (Chiller dependant) Num 0 2 2 - X X
H06 Compressors per Circuit (Chiller Dependant) Num 0 4 2 - X X
H07 Capacity Steps per compressor Num 0 3 0 - XX
H08 Compressor ON sequence
0 = Start Compressor with least running hours, Stop
Compressor with most running hours.
1 = Start Compressor 1, 2, 3. Stop Compressor 3,2,1
Flag 0 1 0 - X X
H09 Circuit balancing
0 = Start Compressors in Circuit 1 before Circuit 2
1 = Balance the Compressors in both Circuits
Flag 0 1 0 - X X
H10 Heat Pump
0 = Chiller, 1 = Heat Pump Flag 0 1 0 - XX
H11 Configuration of Sensor ST1
1 = Entering Water Temperature Num 0 4 1 - X X
H12 Configuration of Sensor ST2
1 = Leaving Water Temperature Num 0 3 1 - X X
H13 Configuration of Sensor ST3
2 = 4-20Ma Condenser Pressure Circuit 1 Num 0 5 2 - X X
H14 Configuration of Sensor ST4
3 = Outside Air Temperature Num 0 3 3 - X X
H15 Configuration of Sensor ST5
0 = No Probe Num 0 1 0 - X X
H16 Configuration of Sensor ST6
2 = 4-20Ma Condenser Pressure Circuit 2 Num 0 4 2 - X X
H17 Bottom of scale pressure value KPa*10 0 350 300 - X X
H18 Polarity of Input ID1 ID2 ID3 ID4 Num 0 15 15 - X X
H19 Polarity of Input ID5 ID6 ID7 ID8 Num 0 15 15 - X X
H20 Polarity of Input ID9 ID10 ID11 ST4 Num 0 15 15 - X X
H21 Polarity of Input ST1 (if Digital Input) Flag 0 1 0 - XX
H22 Polarity of Input ST2 (if Digital Input) Flag 0 1 0 - XX
H23 Configuration of Input ID1
10 = HIGH Pressure Circuit 1 Num 0 28 10 - X X
H24 Configuration of Input ID2
12 = LOW Pressure Circuit 1 Num 0 28 12 - X X
H25 Configuration of Input ID3
8 = Cond. Fan Thermal Overload Circuit 1 Num 0 28 8 - X X
H26 Configuration of Input ID4
4 = Compressor Thermal Overload Circuit 1 Num 0 28 4 - X X
H27 Configuration of Input ID5
11 = HIGH Pressure Circuit 2 Num 0 28 11 - X X
H28 Configuration of Input ID6
13 = LOW Pressure Circuit 2 Num 0 28 13 - X X
H29 Configuration of Input ID7
9 = Cond. Fan Thermal Overload Circuit 2 Num 0 28 9 - X X
H30 Configuration of Input ID8
? = Compressor Thermal Overload Circuit 2 Num 0 28 ? - X X
H31 Configuration of Input ID9
0 = Not Used Num 0 28 0 - X X

IOM BASIC CLIMATIC CONTROLLER - Page 15
parameters lists
Settings Access
Ref. Configuration Parameters Unit Min Max Factory General Password Factory
Adjust. Hidden
H32 Configuration of Input ID10
2 = Remote ON / OFF Num 0 28 2 - X X
H33 Configuration of Input ID11
1 = Flow Switch Num 0 28 1 - X X
H34 Configuration ST4 (if Digital Input) Num 0 28 0 - X X
H35 Configuration of output RL2
9 = Compressor step 2 Num 0 17 9 - X X
H36 Configuration of output RL3
0 = Disabled, 11= Compressor step 4 Num 0 17 11 - X X
H37 Configuration of output RL4
0 = Disabled, 16 = Compressor step 5 Num 0 17 16 - X X
H38 Configuration of output RL5
12 = Fan 2 Circuit 1 Num 0 17 12 - X X
H39 Configuration of output RL6
13 = Fan 3 Circuit 1
14 = Fan 2 Circuit 2
Num 0 17 13 - X X
H40 Configuration of output RL7
7 = Pump Num 0 17 7 - X X
H41 Polarity RL2 Flag 0 1 0 - X X
H42 Polarity RL3 Flag 0 1 0 - X X
H43 Polarity RL4 Flag 0 1 0 - X X
H44 Polarity RL5 Flag 0 1 0 - X X
H45 Alarm relay polarity
0 = Output ON if Alarm Active
1 = Output OFF if Alarm Active
Flag 0 1 0 - X X
H46 Configuration fan 1 Circuit 1 output
0 = Triac output from TK1
1 = 4-20mA output from AN1
2 = Solid State Relay Output from TK1
Flag 0 2 2 - X X
H47 Configuration fan 1 Circuit 2 output
0 = Triac output from TK1
1 = 4-20mA output from AN1
2 = Solid State Relay Output from TK1
Flag 0 2 2 - X X
H48 Configuration serial protocol
0 = BMS Communications Disabled
1 = BMS Communications enabled
Flag 0 1 0 - X X
H49 Selection of operating mode
0 = Selection by Keyboard Flag 0 1 0 - X -
H50 Enable dynamic set point
0 = Disable, 1 = Enable Flag 0 1 0 - - X X
H51 Offset of dynamic set point during cooling °C -50 80 30 - - X X
H52 Offset of dynamic set point during heating °C -50 80 30 - - X X
H53 Dynamic outdoor temp. set point during cooling °C -127 127 35 - - X X
H54 Dynamic outdoor temp. set point during heating °C -127 127 -5 - - X X
H55 Delta dynamic outdoor temp. set point during
cooling °C -50 80 25 - - X X
H56 Delta dynamic outdoor temp. set point during
heating °C -50 80 28 - - X X
H57 Offset Sensor 1 °C -12.7 12.7 0 - X X
H58 Offset Sensor 2 °C -12.7 12.7 0 - X X
H59 Offset Sensor 3 (Note : °C/10, Kpa*10) °C /
Kpa -127 127 -10 - X X
H60 Offset Sensor 4 °C -12.7 12.7 0 - X
H61 Offset Sensor 5 °C -12.7 12.7 0 - - X X
H62 Offset Sensor 6 (Note : °C/10, Kpa*10) °C /
Kpa -127 127 -6 - X X
H63 Voltage Frequency
0=50 Hz 1=60 Hz Flag 0 1 0 - X -
H64 Temperature Display
0= °C 1=°F Flag 0 1 0 - X X
H65 Family serial address
Used to set the Address of the controller when using a
Modbus Interface
Num 0 14 0 - X X
H66 Device serial address
Used to set the Address of the controller when using a
Modbus Interface
Num 0 14 0 - X X
H67 User password Num 0 255 See LENNET - X X
H68 Copy card password
Factory use only Num 0 255
See LENNET - X X
H69 Keyboard Present Flag 0 1 1 - X X

Page 16 - IOM BASIC CLIMATIC CONTROLLER
parameters lists
Settings Access
Ref. Compressor Parameters Unit Min Max Factory General Password Factory
Adjust. Hidden
C01 ON-OFF safety time s*10 0 255 6 - X
C02 ON-ON safety time s*10 0 255 30 - X X
C03 Cooling Control Hysteresis °C 0 25.5 1 - X
C04 Heating Control Hysteresis °C 0 25.5 1.5 - XX
C05 Regulation algorithm step intervention delta °C 0 25.5 1.5 - X
C06 Compressor – compressor ON interval s 0 255 60 - X
C07 Compressor – compressor OFF interval s 0 255 30 - X
C08 Capacity step ON interval s 0 255 60 - X
Settings Access
Ref. Condenser Fan Parameters Unit Min Max Factory General Password Factory
Adjust. Hidden
F01 Fan output mode Num 0 2 0 - X X
F02 Fan pick-up time s/10 0 255 20 - X
F03 Fan-Shift % 0 100 8 - X X
F04 Impulse Duration triac start uS*100 0 255 30 - X X
F05 Functioning in response to compressor request Flag 0 1 0 - X X
F06 Minimum speed during cooling % 0 100 0 - X -
F07 Maximum silent speed during cooling % 0 100 100 - X -
F08 Minimum fan speed temperature/pressure set point
during cooling
°C/10-
Kpa*10 -500 800 120 - X
F09 Prop. Band during cooling °C/10-
Kpa*10 0 255 30 - X
F10 Delta cut-off °C/10-
Kpa*10 0 255 0 - X
F11 Cut-off hysteresis. °C/10-
Kpa*10 0 255 25 - X
F12 Bypass time cut-off s 0 255 10 - X
F13 Max speed during cooling % 0 100 100 - X
F14 Maximum fan speed temperature/pressure set
point during cooling
°C/10-
Kpa*10 -500 800 150 - X
F15 Minimum speed during heating % 0 100 100 - XX
F16 Maximum silent speed during heating % 0 100 100 - XX
F17 Minimum fan speed temperature/pressure set point
during heating
°C/10-
Kpa*10 -500 800 10 - XX
F18 Prop. Band during heating °C/10-
Kpa*10 0 255 50 - XX
F19 Maximum fan speed during heating % 0 100 100 - XX
F20 Maximum fan speed temperature/pressure set
point during heating
°C/10-
Kpa*10 -500 800 450 - XX
F21 Preventilation in cooling mode s 0 255 0 - X X
F22 Combined or separate fan control
0= Fans control to separate Circuits
1= Fans control to common Circuits
Flag 0 1 1 - X X
F23 Fan activation temperature/pressure set point
during defrosting
°C/10-
Kpa*10 -500 800 -500 - XX
F24 Fan activation hysteresis during defrosting °C/10-
Kpa*10 0 255 10 - XX
F25 Set 2nd fan step Cooling °C/10-
Kpa*10 -500 800 175 - X
F26 Set 3rd fan step Cooling °C/10-
Kpa*10 -500 800 190 - X
F27 Set 2nd fan step Heating °C/10-
Kpa*10 -500 800 -500 - XX
F28 Set 3rd fan step Heating °C/10-
Kpa*10 -500 800 -500 - XX
F29 Duty cycle period for "DC" output s 1 10 5 - X X

IOM BASIC CLIMATIC CONTROLLER - Page 17
parameters lists
Settings Access
Ref. Alarm Parameters Unit Min Max Factory General Password Factory
Adjust. Hidden
A01 L/P switch bypass time after compressor on s 0 255 120 - X
A02 Low pressure alarm events per hour Num 0 255 3 - X -
A03 Flow switch bypass time after pump on s 0 255 50 - X -
A04 Duration of flow switch input active s 0 255 10 - X -
A05 Duration of flow switch input inactive s 0 255 30 - X -
A06 Number of flow switch alarm events per hour Num 0 255 5 - X -
A07 Bypass compressor thermal switch from
compressor on s 0 255 0 - X -
A08 Number of compressor thermal switch alarms/hour Num 0 255 3 - X -
A09 Number of fan thermal switch alarms/hour Num 0 255 20 - X X
A10 Anti-freeze alarm bypass after ON-OFF Min 0 255 0 - X X
A11 Anti-freeze alarm activation set point °C -127 127 3 - X X
A12 Hysteresis of anti-freeze alarm °C 0 25.5 1 - X -
A13 Anti-freeze alarm events/hour Num 0 255 3 - X -
A14 High pressure/temperature activation set point °C/10-
Kpa*10 0 900 350 - XX
A15 High pressure hysteresis °C/10-
Kpa*10 0 255 30 - XX
A16 Low pressure activation bypass s 0 255 10 - XX
A17 Low pressure activation set point °C/10-
Kpa*10 -500 800 -500 - XX
A18 Low pressure hysteresis °C/10-
Kpa*10 0 255 20 - XX
A19 Low pressure alarm events per hour Num 0 255 3 - XX
A20 Machine out of coolant differential °C 0 255 1 - XX
A21 Machine out of coolant bypass Min 0 255 1 - XX
A22 Machine out of coolant duration Min 0 255 3 - XX
A23 Machine out of coolant alarm triggered Flag 0 1 0 - XX
A24 Enable low pressure alarm during defrost Flag 0 1 0 - XX
A25 Input over-temperature set point °C 0 255 30 - X-
A26 Input over-temperature duration s*10 0 255 60 - X-
Settings Access
Ref. Pump Parameters Unit Min Max Factory General Password Factory
Adjust. Hidden
P01 Pump operating mode
0= Continuous operation
1= Pump start upon demand from controller
Flag 0 1 0 - X X
P02 Delay between pump ON and compressor ON s 0 255 120 - X
P03 Delay between compressor OFF and pump OFF s 0 255 255 - X
P04 Set start Pump on external temperature °C/10 -500 800 50 - X
P05 Set stand-by on external temperature °C/10 -500 800 0 - X
P06 Hysteresis Pump on external temperature °C/10 0 255 10 - X

Page 18 - IOM BASIC CLIMATIC CONTROLLER
parameters lists
Settings Access
Ref. Anti Freeze Parameters Unit Min Max Factory General Password Factory
Adjust. Hidden
R01 Configuration of electrical heaters in defrost mode Flag 0 1 1 - XX
R02 Configuration of electrical heaters on in cooling
mode
0= Off during cooling
1= On in cooling if called by the Anti freeze program
Flag 0 1 1 - X X
R03 Configuration of electrical heaters on in heating
mode
0= Off during heating
1= On in heating if called by the Anti freeze program
Flag 0 1 1 - XX
R04 Configuration of electrical heater 1 control probe Num 0 3 1 - XX
R05 Configuration of electrical heater 2 control probe Num 0 3 2 - X X
R06 Configuration of electrical heaters when Unit is
OFF or on STAND-BY
0= Off
1= On in if called by the Anti freeze program
Flag 0 1 1 - X X
R07 Set point of electrical heater 1 in heating mode °C -7 8 4 - XX
R08 Set point of electrical heater 1 in cooling mode °C -7 8 4 - X
R09 Max. set point electrical heaters °C -7 127 8 - X X
R10 Min. set point electrical heaters °C -127 8 -7 - X X
R11 Hysteresis of anti-freeze heaters °C 0 255 1 - X X
R12 Parallel electrical heater enable Flag 0 1 1 - XX
R13 Set point of electrical heater 2 in heating mode °C -7 8 4 - XX
R14 Set point of electrical heater 2 in cooling mode °C -7 8 4 - XX
R15 Enable supplementary electrical heaters Flag 0 1 1 - XX
R16 Delta of activation of supplementary heater 1 °C 0 25.5 2 - XX
R17 Delta of activation of supplementary heater 2 °C 0 25.5 3 - XX
R18 Status of with pump OFF Flag 0 1 0 X X
Settings Access
Ref. Defrost Parameters Unit Min Max Factory General Password Factory
Adjust. Hidden
D01 Defrost enabled Flag 0 1 0 - XX
D02 Defrost start temperature/pressure °C/10-
Kpa*10 -500 800 30 - XX
D03 Defrost interval Min 0 255 4 - XX
D04 Defrost end temperature/pressure °C/10-
Kpa*10 -500 800 180 - XX
D05 Maximum defrost time Min 0 255 6 - XX
D06 Compressor-reversing valve wait time s 0 255 5 - XX
D07 Drip time s 0 255 5 - XX
D08 Delay between defrosting of circuits s * 10 0 255 5 - XX
D09 Output probe defrost circuit 1 Num 0 3 1 - XX
D10 Output probe defrost circuit 2 Num 0 3 1 - XX
D11 Delay in compressors on in defrost mode s 0 255 0 - XX
Settings Access
Ref. Expansion Card Parameters Unit Min Max Factory General Password Factory
Adjust. Hidden
N01 Polarity of ID12 ID13 ID14 ID15 Num 0 15 0 - XX
N02 Configuration ID12 Num 0 28 0 - XX
N03 Configuration ID13 Num 0 28 0 - XX
N04 Configuration ID14 Num 0 28 0 - XX
N05 Configuration ID15 Num 0 28 0 - XX
N06 Configuration relay 9 Num 0 17 0 - XX
N07 Configuration relay 10 Num 0 17 0 - XX
N08 Configuration relay 11 Num 0 17 0 - XX
N09 Configuration relay 12 Num 0 17 0 - XX

IOM BASIC CLIMATIC CONTROLLER - Page 19
ALARMS
CODE INDICATES DESCRIPTION
E00 Remote off All loads will be shut down.
E01 High pressure
Fault circuit 1
Digital Input
All Compressors in circuit 1 will be shut down
Manual Reset Required
E02 Low pressure
circuit 1
All Compressors in circuit 1 will be shut down; also condenser fans if separate for the 2 circuits
Automatically reset unless alarm events per hour reaches the value of parameter Pa A02,
after which manually reset;
Inactive during timer Pa A01 after compressor on in circuit 1
E03
Compressor
Thermal
protection
Circuit 1
All Compressors in Circuit 1 will be shut down;
Automatic reset until alarm events per hour reaches the value of parameter Pa A07, after which
manually reset;
Inactive during timer Pa A08 after compressor on.
E04
Condenser Fan
Thermal
protection
circuit 1
Fans and compressors in circuit 1 will be shut down;
If Common to both Circuits Compressors in circuit 2 will also be shut down;
Automatically reset until alarm events per hour reaches the value of parameter Pa A09, after
which manually reset;
E05 Anti-freeze
circuit 1
Fans and compressors in circuit 1 will be shut down;
Triggered when Leaving Water Temperature is lower than Pa A11;
Turned off if probe Leaving Water Temperature is greater than Pa A11 + Pa A12;
Automatically reset until alarm events per hour reaches the value of parameter Pa
A13,after which manually reset;
Inactive during timer Pa A10 after the Chiller is turned on with the On-OFF key via the keyboard
or from the remote ON-OFF input.
E06 Leaving Water
Sensor fault All loads will be shut down;
Input shorted or open circuit or probe limits are exceeded (-50°C.. 100°C).
E07 Condenser
Sensor Circuit
1 fault
All loads will be shut down;
Input shorted or open circuit or probe limits are exceeded (-50°C.. 100°C).
E09 Not Used Not used
E11 High pressure
circuit 1 on
analog input
Compressors in circuit 1 will be shut down;
Active when Circuit 1 pressure sensor detects a value greater then Pa A14;
Inactive if the sensor detects a value lower then Pa A14 – Pa A15;
E12 Low pressure
circuit 1 on
analog input
Compressors in circuit 1 will be shut down, as well as condenser fans if the 2 circuits have
separate condensation (refer to combined or separate condensation);
Active if the analog probe ST6 (refer to analog inputs) is configured as pressure probe;
Active when the pressure probe ST6 detects a value lower then Pa A17;
Inactive if the probe detects a value greater then Pa A17 – Pa A18;
Automatically reset until alarm events per hour reaches the value of parameter Pa A19, after
which manually reset;
Inactive during timer Pa A16 after compressor on or reversal of 4-way valve (reversing valve) of
circuit 1
E13
Compressor
Thermal
protection
Circuit 2
All Compressors in Circuit 1 will be shut down;
Automatic reset until alarm events per hour reaches the value of parameter Pa A07, after which
manually reset;
Inactive during timer Pa A08 after compressor on.
E19 Not Used Not used
E21 High pressure
Fault circuit 2
Digital Input
All Compressors in circuit 2 will be shut down
Manual Reset Required
E22 Low pressure
circuit 2
All Compressors in circuit 2 will be shut down; also condenser fans if separate for the 2 circuits
Automatically reset unless alarm events per hour reaches the value of parameter Pa A02,
after which manually reset;
Inactive during timer Pa A01 after compressor on in circuit 2
E23 Not Used Not Used
E24
Condenser Fan
Thermal
protection
circuit 2
Fans and compressors in circuit 2 will be shut down;
If Common to both Circuits Compressors in circuit 1 will also be shut down;
Automatically reset until alarm events per hour reaches the value of parameter Pa A09, after
which manually reset;
E25 Not Used Not Used
E26 Not Used Not Used
E27 Condenser
Sensor Circuit
2 fault
All loads will be shut down;
Input shorted or open circuit or probe limits are exceeded (-50°C.. 100°C).
An Alarm code will be displayed if at least one alarm is active. If multiple alarms are active, the one with greater priority will
be displayed according to the Table of Alarms.
Alarm Events Per Hour
Alarms which are Manual Reset are reset by pressing the ON/OFF button and releasing