OPTICLIMATE PRO3 Series User manual

NL
 PLEASE READ THE FOLLOWING INFORMATION
CAREFULLY BEFORE USING THE UNIT:
High Temperature Safeguard on page 7
Do not bend the cooling coils! page 9
Delete alarm history on page 12
Dehumidify without cooling pro4 on page 12
OPTIMAL CLIMATE CONTROL
OPTICLIMATE
OPTICLIMATE.NL
OptiClimate is a registered trademark of
airSupplies
PRO3 AND PRO4 SPLIT (INVERTER) SERIES
Installation and User Guide

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INSTALLATION INSTALLATION
Installation
Fan installation (front / side)
If the unit is placed in a narrow room or in the ridge of a gable roof, the fan outlet side can be installed at the short
side of the unit.
This can be done simply by reversing the dark panels. The fan panel is moved around to the short side of the unit.
Loosening the corner bracket will eliminate the need for disconnecting cable connections.
It is important, however, to release the outlet air to the fan.
Installation
To guarantee proper air suction, leave at least 15cm of space between the wall and the backside of the unit, where the
carbon & dust lters and air inlet are located. At least 15cm of space should also be left between the topside of the unit
and the ceiling. Larger spaces are preferred. The unit must stand free from the wall to avoid contact noises.
The unit should be mounted in such a way that the side of the condensation drain is at least 1 cm lower than the other
side (slope) to ensure that the condensate drains properly. In practice, the 1 cm elevations at all corners – except the
corner of the condensate drains – are exactly right for a correct fall. Using a spirit level is recommended.
To avoid contact noises, the OptiClimate is delivered with rubber shock absorbers as standard issue, that are suitable
for suspended installation. If the OptiClimate is going to be placed on a solid base, the rubber shock absorbers supplied
with the connection set need to be used.
Special insulating springs can also be supplied for areas that have to be extra quiet. Placing the insulating springs on
the supports will ensure that the unit has automatic fall to the condensation drain.
Installation of rubbers Installation of insulating springs
The rubber feet with which the OptiClimate is placed on the pallet are use to suspend the unit by means of thread ends.
A thread end, a large washer and a nut must be tted. (not supplied)
NL
1 cm fall

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ELECTRICAL CONNECTION ELECTRICAL CONNECTION
Electrical connections
Automatic moisture meter, remote
Control, power supply for clock,
temperature sensor, ve-core cable
Power cord
First, the panel at the left side near the manometer should be removed to make the various electrical connections.
A ve-core cable, automatic moisture meter, remote control and temperature sensor are supplied with the unit. Their
cables can be led to the outside through the opening at the bottom of the panel. The power cable for the power supply
can be led through the black feed-through rubber at the side of the unit.
Room
Temperature sensor
AI01
Alarm port
Alarm port
The printed circuit-board has an alarm port, which is activated (makes contact) in case of a malfunction (error). This
contact can be connected to a GSM detector. The contact can be set to NO (contact open) or NC (contact closed)
using the Settings menu. This means that the contact will be opened or closed in case of detection. See the manual of
the GSM detector or alarm for this.
Automatic moisture meter with light cell
The automatic moisture meter with built-in light cell supplied with the unit is already connected. The cable should be led
through the opening in the panel. The automatic moisture meter should be hung in the room and may NOT be covered.
The light cell in the automatic moisture meter automatically switches the OptiClimate from day to night mode.
Room temperature sensor
The room temperature sensor should be suspended in the space to be cooled. The sensor should be protected against
heat radiation but may not be put in the shade. A protective cover over the sensor is sufcient.
The remote control
The remote control contained in the compartment can be hung in the room but can also
be hung elsewhere. This way the OptiClimate can also be controlled from outside the
room. The four-core cable is already connected and should be led to the outside through
the opening in the panel.
Five-core cable
A ve-core cable is included to power the outdoor unit, and to connect the temperature sensor in the outdoor unit to the
indoor unit. The ve-core cable is connected to the terminal strip in the indoor unit and the white junction box on the
outdoor unit or, with the larger units, on the power strip behind the terminal cover. The ve-core cable should be fed
into the panel through the opening, and be connected to the indoor unit as follows.
Blue on N
Brown on 7
Yellow/green on PE
Black or grey on 24
Black or grey on 23

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ELECTRICAL CONNECTION ELECTRICAL CONNECTION
Power cables
Five different OptiClimate models are available. For your safety and the safety of the OptiClimate, the following
specications should be observed when connecting the power supply: use the circuit breakers and cable thickness
specied
Model
2000 PRO3 & PRO4 1 phase D16 MCB 2.5mm2 cable
2000 PRO3 & PRO4 3 phase D16 MCB 2.5mm2 cable
3500 PRO3 & PRO4 1 phase D16 MCB 2.5mm2 cable
3500 PRO3 & PRO4 3 phase D10 MCB 2.5mm2 cable
6000 PRO3 & PRO4 1 phase D25 MCB 4.0mm2 cable
6000 PRO3 & PRO4 3 phase D16 MCB 2.5mm2 cable
10000 PRO3 & PRO4 1 phase D35 MCB 4.0mm2 cable
10000 PRO3 & PRO4 3 phase D20 MCB 2.5mm2 cable
15000 PRO3 & PRO4 inverter 1 phase D50 MCB 6.0mm2 cable
15000 PRO3 & PRO4 inverter 3 phase D35 MCB 4.0mm2 cable
15000 PRO3 & PRO4 3 phase D25 MCB 4.0mm2 cable *
* The compressor of this unit is divided over 3 phases
The cables for the supply voltage should be led through the feed-through rubber at the side and connected to the left-
hand side of the terminal strip as described in the illustration. The earthing can be connected to the PE terminal or to
the screw on the metal housing at the bottom right of the terminal strip.
Inverter models
Connecting to the terminal strips left corner Connecting to the terminal strips right corner
D
blue
N
blue
7 15
L1
yellow
16
L2
green
12
L3
red
14
(COM)
18
P
EN
INVERTER 1 PHASE 230VOLT
The automatic
moisture meter
Temperature safeguard
Outdoor unit
Earthing
23
(A+B series)
29
(C+> series)
24
(A+B series)
30
(C+> series)
Temperature sensor
outdoor unit
When connecting the inverter models to 1 phase 230volt, there need to be bridges between L1, L2 and L3. There should
also be a bridge between N and D. With a new unit, the bridges are connected.
Earthing
23
(A+B series)
29
(C+> series)
24
(A+B series)
30
(C+> series)
Temperature sensor
outdoor unit
Connecting to the terminal strips left corner Connecting to the terminal strips right corner
D
blue
N
blue
7 15
L1
yellow
16
L2
green
12
L3
red
14
(COM)
18
P
EN
INVERTER 3 PHASE 400VOLT
The automatic
moisture meter
Temperature safeguard
Outdoor unit
When connecting the inverter models to 3 phase 400volt, there may not be any bridges between L1, L2 and L3. There
may also not be a bridge between N and D. With a new unit, the bridges are always connected.
Note: Failure to observe the above description can cause irreparable damage to compressor/ inverter.
2 loops with 230V 1 phase
No loops with 400V 3 phase
Connecting to the terminal strips left corner Connecting to the terminal strips right corner
N
blue
7 15
L1
yellow
16
L2
green
12
L3
red
14
(COM)
18
P
EN
230V 3 Phase
The automatic
moisture meter Earthing
2 loops with 230V 1 phase Outdoor unit Temperature safeguard
Connecting to the terminal strips left corner Connecting to the terminal strips right corner
N
blue
7 15
L1
yellow
16
L2
green
12
L3
red
14
(COM)
18
P
EN
400V 3 Phase
The automatic
moisture meter Earthing
No loops with 400V 3 phase Outdoor unit Temperature safeguard

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ELECTRICAL CONNECTION INSTALL / CONNECT THE OUTDOOR UNIT
High temperature safeguard
Using this safeguard, the OptiClimate can switch off the heat sources (e.g. lamps) when the temperature in a room
becomes too high. The unit has a terminal that can be connected to the timer of a control panel, for example. The feed
wire running to the switch in the timer should be interrupted for this purpose. Terminal 1, for example, is for a Grasslin
clock and terminal 4 for a LeGrand timer.
16
15
16
15
LeGrand Grasslin
The two ends should be connected to terminals 15 & 16 on the terminal strip in the electrical compartment of the
OptiClimate. The OptiClimate supplies the power for the timer.
The OptiClimate supplies the power for the timer. If the room temperature exceeds 35°C, the OptiClimate will interrupt
the circuit, switching off the heat sources. ERROR 15 is then displayed on the remote control.
Always refer to the timer manufacturer's manual if a model other than the one shown is used.
M
L N
Installing outdoor unit
The outdoor unit should preferably be installed in the open in a cool place (shade), where the unit can suck in air.
Leave enough space around the unit to ensure proper air ow. If the air passing through the outdoor unit is warmer,
the capacity decreases. If the ambient air exceeds 40°C, an error E:16 occurs. The unit will simply continue to work.
If the outdoor unit is placed near a wall, make sure that the fan blows away from the wall. The fan sucks air through
the outdoor unit.
Refrigerant hose connections
2 refrigerant hoses are included. A hose has a large diameter and is connected to the connector "steam" (above) of the
indoor unit. The other hose has a slightly smaller diameter and is connected to the "liquid" connector (below).
On the outdoor unit, the hoses should be connected as indicated on the stickers.
Note: Refrigerant hoses may not be kinked or installed at an acute angle. If they are kinked even briey, they
must be thrown away, a 100% leak will occur at this kink. The hoses must be placed at and must not be pulled.
The hoses may not be shortened or extended self. The connections on both the indoor and the outdoor unit should
rst be tightened by hand. After this, the connections are tightened with two spanners, do not tighten too hard.
The hoses should be supported, they may not hang on the indoor or outdoor unit, if they hang they will buckle
under their own weight.
Connecting a ve-core cable to the outdoor unit
The outdoor unit has a white waterproof terminal box. The ve-core cable coming from the indoor unit should be
connected in this.
Connection
for the outdoor air
Temperature sensor
Connection
for the fan
Blue on blue
Yellow / green on yellow / green
Brown on brown
black or grey on black
black or grey on black

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WATER-SIDED CONNECTIONS PUTTING INTO OPERATION
Discharge of the condensation water
The unit will also dehumidify the air during cooling. The moisture extracted from the air comes into the condensation
drain. The condensation drain is connected to a sturdy garden hose or a pipeline that does not bend easily. The
condensation water drips from the hose, which can be connected to the drain pipe. The condensate can also be used
as feed water. The cooling block has been adjusted to prevent metals or oxides from entering the condensate. This is
ideal when the only feed water available is hard water.
The drain pipe of the condensation water may not have loops and may not be put under the water level in a drum.
If the unit is installed at the same level or lower than the drain or sewer, a condensation lift pump can collect the water.
This small lift pump pumps the water through a hose of 9mm to a height of 4 metres into the drain. Stronger pumps are
also available.
Drain pump of the condensation water incorrect drain installation
The drain to the pump must not be under the water level and the pipe may not have loops as shown above. It's possible
that too much air is sucked in through the condensation water pipe causing the condensate water not to drain properly.
Then there is too much resistance in the intake system. Dimension hoses of e.g. a plenum box as large as possible
and ensure that during operation all panels are mounted on the unit. A special syphon can also be mounted. Ask your
dealer.
 The unit is now installed and ready to use
Remote Control
Operation
 = Temp up / scroll
 = Temp down / scroll
T= Press and release to set the time / press and hold to set the timer
FN = Fan speed
S = Press and release to read Sensors / press and hold to bring up the Menu
R = Press and release to conrm / press and hold to delete error codes
M = Press and release to switch between day and night mode.
Press and hold to turn automatic light cell mode on/off.
On/Off Turn unit on/off or conrm menu option.
1) On/Off key
The unit is switched On or Off using the On/Off key. The LED will be green when the unit is On. The LED will be red
when the unit is Off. In case of malfunctioning, the LED will ash red and green. The On/Off key is also used to conrm
a menu selection.
2) Mode key M
Pressing the mode key will switch the mode from day mode (cooling) to night mode (heating/dehumidifying). The
display will show a lit snowake in day mode and a sun with drops of water in night mode.
Temperatures for the day and night can be set using the mode function.
These can be changed later, if required.
3) Fan speed key Fn
This key is used for selecting the air speed of the fan. The sequence is as follows:
A
Automatic Low Medium High
The speed changes whenever the Fn key is pressed. If you select the automatic fan mode in the Cool mode, the unit will
ventilate more or less depending on the need for cooling.
By selecting day or night with the mode key a different fan speed can be chosen for both day and night. For the night
we recommend the lowest fan speed for heating and dehumidifying. If a great deal must be dehumidied during the
night, the fan speed can be set to position 2 or 3.

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PUTTING INTO OPERATION PUTTING INTO OPERATION
Inverter
The OptiClimate inverter models adjust the cooling capacity to the need. Non-Inverter models operate on
an on / off basis, while the inverter models run the compressor harder/ softer when more or respectively
less cooling capacity is required. This provides an even more stable climate and prevents the frequent tripping
of the unit in case of over capacity.
The inverter function operates on the basis of the fan speed. This means that the fan, in the day position, should be set
to automatic using the remote control (FN). If the fans are set at a xed speed, the inverter function is switched off and
the compressor also runs at a xed speed. (resp. low / middle / high). For the night position, we recommend that you
always use the low setting.
4) Temperature setting
Users can set the temperature from 16°C to 34°C.Pressing the

or

key will show the set temperature SET TEMP on the
display. By pressing it once more, you can set the required temperature. The set temperature will be saved and stored
after 3 seconds. Switching between day and night temperatures is done using the M mode key.
5) Time Setting T key
Press the T key once to select the hours and then press the

or

key to change the hours. Press the T key again,
and the minutes will ash and then press the

or

key to change the minutes. Now press the R key to conrm the
hours and minutes that you entered.
6) Automatic Light Cell setting (Day /Night programme)
The automatic moisture meter in the PRO3 series has a light cell, which switches to the day mode when it sees the light
is on and to the night mode when the light is off. Only the Day/Night temperatures have to be set, the rest is done
automatically.
If you want to set the unit manually, the automatic light cell can be switched off and the unit will operate manually. By
pressing the M key for 3 seconds, the mode switches from light cell to manual. By pressing the M key again for 3
seconds, the mode switches from manual to light cell. If the automatic light cell
is activated, the display shows an A.
Note: It is important to note that when the Timer setting is programmed the automatic light cell mode is
deactivated. Therefore, install a Timer only if you want to use advanced options. The Timer mode is active when a
clock icon appears in the display.
The external automatic moisture meter for the light cell should be connected to the terminal strip in the electrical
compartment (terminals 12, 14 and 18). Otherwise the unit will remain in the night mode because light is not detected.
This is connected by default.
7) Timer Setting (DAY/NIGHT programme)
As a general rule, we recommend using the automatic light cell mode. Only set the timer if you do
not want to work with the light cell!
This function can be used to set the DAY/NIGHT programme. The programme restarts every day regardless of which
day it is. If the timer is set, the display will show the clock icon next to the time. 
Press the T key for 2 seconds. When "---", ON becomes visible, you can change the timer setting. Pressing the

or

key will allow you to set the hours of the ON time. Pressing the T key again will allow you to set the minutes of the ON
time. The ON time is the time that the unit will start to cool.
Pressing the T key again will allow you to set the OFF time. The OFF time is the time that the unit will start to heat/
dehumidify. If the timer is not set yet, the display will show "--:--" or the time that was already set.
Example:
The unit must cool between 8:00 AM and 8:00 PM.
The ON time should then be set to 8:00 AM
and the OFF time to 8:00 PM
AM = after midnight (from 0:00 to 12:00 hours)
PM = after noon (from 12:00 to 24:00 hours)
1:00 AM equals 01:00
02:00 equals 02:00
03:00 equals 03:00
04:00 equals 04:00
05:00 equals 05:00
06:00 equals 06:00
07:00 equals 07:00
08:00 equals 08:00
09:00 equals 09:00
10:00 equals 10:00
11:00 equals 11:00
12:00 PM equals 12:00
1:00 PM equals 13:00
2:00 PM equals 14:00
3:00 PM equals 15:00
4:00 PM equals 16:00
5:00 PM equals 17:00
6:00 PM equals 18:00
7:00 PM equals 19:00
8:00 PM equals 20:00
9:00 PM equals 21:00
10:00 PM equals 22:00
11:00 PM equals 23:00
12:00 AM equals 00:00
Deleting the time when setting the timer (switching off the timer)
Press the R key, and the time is deleted. The display will show "--:--". CLOSING: Press the T key three times to close
immediately or wait 10 seconds to close automatically.
The settings of the current time and the timer settings
should run synchronously with the times of the control panel.
All clocks must run synchronously when the timer function
is used.
8) Using the automatic moisture meter for dehumidifying during the night
The automatic moisture meter can be set to the required maximum air humidity during the night. If the Night mode is
active and the automatic moisture meter indicates that the unit should dehumidify, the Drop icon starts to ash. During
dehumidication the electric heating elements will be activated for the PRO3. This is not the same with PRO4.
Dehumidication during the day (only PRO4)
Both the PRO3 and the PRO4 will always dehumidify as long as there's a demand for cooling. However, the PRO4 can
also dehumidify when no cooling is required. This function can be activated by setting option D:39 to 1 in the menu.
If, for example, a constant air humidity and temperature are required continuously in a climatic chamber, cool at night
must be activated in the menu option D:04. By pressing and holding the M key the light cell is deactivated and
by pressing and releasing the M key a choice must be made for the night setting. The unit can now cool, heat and
dehumidify, while also controlling the humidity at a xed temperature value.
The automatic moisture meter

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PUTTING INTO OPERATION SETTINGS (SET-UP)
9) Reading function for the temperature sensors
Press the S key and the sensor will show the temperatures. The number and temperature of the sensors will show in the
spot of the clock. Pressing the

and

keys will allow users to select the reading of the various sensors.
CLOSING: Press the S key to close immediately or wait 60 seconds to close automatically.
C:01= C:01 = Temperature of cooling block
C:02= Temperature of refrigerant outdoor unit (liquid / return)
C:03= Temperature room 2 (only in case of a dual room conguration, now -40°C)
C:04= Intake (warm) air temperature
C:05= Outlet air temperature
C:06= Temperature of low-pressure (for compressor)
C:07= Temperature of outdoor air (with outdoor unit)
10) Reading function for the error codes
The unit malfunctions if the ON/OFF LED ashes red and green. E:XX will show the actual error code. If the problem is
solved automatically, the error code will disappear.
The error log (alarm history) in located at the bottom in the display of the remote control. If an error occurs, the error
will be continuously visible at the bottom of the display, even if the error has been solved. This way a malfunction or
incorrect setting that is about to come up can be noticed and/or resolved at an early stage.
Deleting the error log (alarm history)
When resolved, errors in the log can be deleted by pressing and holding the R key.
Error codes
 Note : Keep the alarm history clear so that problems can be easily resolved at an early stage!
11) Alarm port
The printed circuit-board has an alarm port, which makes contact when an alarm or error occurs. This contact can be
connected to an alarm system or SMS (GSM) detector.
12) Compressor Active mode
If the compressor operates, the display will show the Compressor icon at the bottom right-hand side,
it will disappear when the compressor is turned off. The compressor only operates during the DAY
period, if the set temperature is exceeded, and during the NIGHT period, if the set air humidity is
exceeded. In PRO4, the compressor runs even when there is no cooling demand in case of excessively
high humidity during the daytime.
13) Heating Elements Active mode
If the heating elements are turned on, the display will show the Hot Air icon at the bottom right-hand side,
it will disappear when the heating elements are turned off. The heating elements only operate during the
NIGHT period, if the temperature reaches a value below the set value.
14) Fan of outdoor unit active.
When this symbol appears in the display, the fan(s) on the outdoor unit is running. If you switch off the
fan(s), the symbol disappears. The fan(s) on the outdoor unit only run when needed.
Settings (Set-up)
Use the

or

key to change a setting. You press the ON/OFF key to conrm. If you do not want to change anything
and exit the menu, press the R key. The settings range from D:01 to D:32. Do not adjust settings D:16 to D:22. These
are factory settings.
To restore the factory settings, press and hold the M key until the Settings menu opens. All settings will now be restored
to factory settings. Conrm this with the on/off key.
D:01 Switching the heating elements on/off
Depending on the model, an OptiClimate has 2 or 3 heating elements. The heating elements of 1-phase systems are
connected to 1 phase and the heating elements of 3-phase systems are divided over all phases.
Each of these elements can be switched on and off individually in the Settings menu. If a central heating system is used
for heating, for example, all of these heating elements can also be switched off at the same time.
Setting:
D:1 = 3 means all three elements will heat.
D:1 = 2 means two elements will heat.
D:1 = 1 means one element will heat.
D:1 = 0 means all elements are off.
D:02 Temperature safeguard
If the room temperature exceeds 35°C, terminals 15 and 16 on the terminal strip of the unit will switch off the
heating elements in the rooms that have to be cooled. The switch-off temperature can be changed using the D:02
setting. The minimum temperature for switching off is 30°C and the maximum temperature is 40°C. If the temperature
drops below the set temperature for cooling mode again, the safeguard will switch off and restart the heat sources.
The safeguard does not affect the operation of the OptiClimate. However, the display will show the error message
E:15. (also see the fault code list)
D:03 Auto Restart after power interruption
If the power is interrupted when the unit is on and the power is restored, the unit will switch on by default. If you want
the unit to remain off after a power interruption caused by an external fault, you should change the D:03 setting.

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SETTINGS (SET-UP) SETTINGS (SET-UP)
Setting:
D:03 = 0 means Auto Restart is off.
D:03 = 1 means Auto Restart is on. This is the default setting. The display will show error code 14 in case of power
interruption. See also the fault code list.
D:04 Night cooling (Cool at Night) on/off.
Using this setting, the night cooling can be switched on.
D:04 = 0 means Cool at Night is off. This is the default setting.
D:04 = 1 means Cool at Night is on.
If in the timer off mode the minimum temperature is, for example, set to 22°C, the unit will cool the room to 22°C in the
night mode. If the room temperature drops below 22°C, the unit will begin to heat the room. This function is useful in
warm climates, in a very well-insulated room or with other sources of heat that cannot be switched off.
When the Cool at Night function is active a moon icon will be shown on the display.
D:05 Pre-Heating on/off.
Pre-heating can be switched on using this setting.
D:05 = 0 means Pre-Heating is off. This is the default setting.
D:05 = 1 means Pre-Heating is on.
If Pre-Heating is switched on, the unit will heat the room up to the set cooling mode (day) temperature one hour before
daybreak (timer is on). At the beginning of the day, the room will be at the right temperature. Besides the advantage of
giving the day temperature a jump-start, this also prevents the cold parts of the unit from becoming wet, which reduces
or prevents mould build-up.
Note: Only works in conjunction with the timer and not in the light cell mode!
D:06 Slow cool-down (post-heating) on/off.
Slow cool-down (post-heating) can be switched on using this setting.
D:06 = 0 means Slow Cool-Down is off. This is the default setting.
D:06 = 1 means Slow Cool-Down is on.
If Slow Cool-Down is switched on, the unit will slowly cool the room until one hour after the end of the day.
Note: Only works in conjunction with the timer and not in the light cell mode!
D:07 Dual Room (cooling two rooms 12h by 12h) on/off.
Using this setting, you can switch on/off the cooling of two rooms alternately.
D:07 = 0 means Dual Room operation is off. This is the default setting.
D:07 = 1 means Dual Room operation is on. If the Dual Room function is active, the display will show the house icon
at the bottom right-hand side.
To use this function, you will have to order a three-way valve and a connection set consisting of a three-way valve,
plenum box, second temperature sensor and an extensive installation/user manual.
D:08 Alarm port N.O. (Normally Open) or N.C. (Normally Closed)
Using this setting, the alarm port can be adjusted.
D:08 = 0 means N.C. Normally closed. This is the default setting.
D:08 = 1 means N.O. Normally open.
Refer to the user manual for the correct settings of the SMS (GSM) detector or the alarm system that should be connected.
D:09 Not applicable
D:10 Timer port
If D:10=0, ports 15 and 16 will interrupt the High Temperature alarm. If D:10=1, the high temp alarm will not occur
through these contacts. With D:10=1, port 16 is common and ports 16 & 17 will be each other's alternate contacts.
The clock of the OptiClimate (OC) will operate these make-and-break contacts and the clock/timer of the OC can
replace the clock on the control panel. The lamps will operate synchronous with the cooling mode of the OC.
To install a High Temperature safeguard, contact 16 should be aligned with the alarm port on the printed circuit-board.
If there is a High Temperature alarm, this alarm will interrupt the timer’s signal and the temperature safeguard will still
operate. The setting of the alarm port should then be the standard setting (0 = N.C.).
D:11 Hysteresis of the temperature
Using this setting, you can adjust the hysteresis (bandwidth) of the temperature control. This is the temperature difference
required to switch the compressor on and off.
Setting: D:11 = 2 means the hysteresis is 2. This is the default setting.
The hysteresis can be set from 1°C to 4°C in steps of 0.5°C. If, for example, the day temperature is set to 28°C and
the hysteresis to 2°C, the unit will start to cool at 29°C and stop cooling at 27°C. To shorten the hysteresis effectively,
the resting time of the (D:27)
D:12 Minimum adjustable heating temperature
Using this setting, you can change the minimum adjustable heating temperature.
The adjustable values in D:12 are: default = 16°C, max. = 20°C, min. = 10°C.
D:13 Maximum adjustable heating temperature
Using this setting, you can change the maximum adjustable heating temperature.
The adjustable values in D:13 are: default = 35°C, max. = 50°C, min. = 25°C.
D:14 Minimum adjustable cooling temperature
Using this setting, you can change the minimum adjustable cooling temperature.
The adjustable values in D:14 are: default = 16°C, max. = 20°C, min. = 10°C.
D:15 Maximum adjustable cooling temperature
Using this setting, you can change the maximum adjustable cooling temperature.
The adjustable values in D:15 are: default = 35°C, max. = 35°C, min. = 25°C.
D:16 Not applicable
D:17 Anti-freeze protection of the cooling block
Using this setting, you can determine at which temperature the Anti-Freeze alarm of the cooling block is activated. The
settings in D:17 are: default = 0°C, max. = 5°C, min. = -2°C.
D:18 Not applicable
D:19 Not applicable
D:20 Not applicable
D:21 Cooling block too hot
Using this setting, you can determine at which temperature the Cooling block too hot alarm is activated. The settings
in D:21are: default = 4°C, max. = 0°C, min. = 10°C and 1°C. To activate the alarm, the temperature has to be too
high for a certain period of time. The time is determined by D:22. D:21 and D:22 jointly determine when Error 11 is
activated.
D:22 Duration of cooling block over heating
Using this setting, you can determine how long it takes before a Cooling block too hot alarm is given. The settings in
D:22 are 30 mins (standard), 40 mins (maximum), 20 mins (minimum).
The temperature level is determined by D: 21. D:21 and D:22 jointly determine when E:11 is activated.
D:23 Temperature compensation of the room temperature sensor
Using this setting, you can calibrate the room temperature sensor. The setting can be changed if the indication on the
display does not correspond with reality. The settings in D:23 are: default = 0°C, max. = 5°C, min. = -5°C and can
be set in 0.5°C increments.
D:24 Temperature compensation of the cooling block temperature sensor
Using this setting, you can calibrate the cooling block temperature sensor. The settings in D:24 are: default = 0°C, max.
= 5°C, min. = -5°C and can be set in 0.5°C increments.

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INSPECTION AND MAINTENANCE FAULT ANALYSIS AND ERROR MESSAGES
D:25 Temperature of compensating refrigerant return outdoor unit
With this option, the temperature sensor can measure the temperature of the return gas to be calibrated from the
outdoor unit. The setting in D:25 is default = 0°C, max. = 5 °C, min. = -5°C and can be set in 0.5°C increments.
D:26 Temperature compensation of the Dual Room temperature sensor
With this setting, you can calibrate the second room temperature sensor in the Dual Room conguration. The settings in
D:26 are: default = 0°C, max. = 5°C, min. = -5°C and can be set in 0.5°C increments.
D:27 Resting time of the compressor
Using this setting, you can adjust the resting time between Compressor Off and Compressor On.
Setting: D:27 = 15 means the idle time is 15 seconds. This is the default setting. This setting may be used if the
temperature values in the room change too much because of the time that the compressor is in idle mode.
D:28 Not applicable
D:29 Display lighting
Using this option, you can switch the lighting in the display of the remote control on and off.
0 = Automatic (default)
1 = Always on
D:30 Fan outdoor unit on / off.
This option determines at which Liquid / Return refrigerant temperature the fan(s) of the outdoor unit will switch on. The
default setting is 27°C. The setting can be changed from 23°C to 33°C.
D:31 Waiting time of outdoor unit fan
With this function, the waiting time can be set and then the fan will run on the outdoor unit after the compressor is
switched on. The standard setting is 30 seconds. (3). The time can be changed between 0 and 90 seconds,. (0 to 9).
In case of high ambient temperatures, it may be desirable to change the time to 10 seconds,. In case of cold outdoor
temperatures, the setting should be 30 seconds.
D:32 Outdoor air temperature too high.
Standard setting is 40°C. The setting can be changed from 35°C to 45°C
D:33 Temperature of compensating intake (warm) air
Standard setting is 0°C. The setting can be changed from -5°C to +5°C.
D:34 Temperature of compensating outlet (cold) air
Standard setting is 0°C. The setting can be changed from -5°C to +5°C
D:35 Temperature of compensating refrigerant low pressure side
Standard setting is 0°C. The setting can be changed from -5°C to +5°C
D:36 Temperature of compensating outdoor air temperature sensor
Standard setting is 0°C. The setting can be changed from -5°C to +5°C
D:37 Buzzer on / off.
0=off / 1=on
D:38 Celsius / Fahrenheit
0=C/1=Fh
D:39 Super dehumidication in day mode is on / off.
0=off / 1=on
Inspection and maintenance
Frequently check whether all couplings are properly tightened. Also check that there are no leaks. The dust lter at the
backside of the unit should be checked every 10-12 weeks for dust accumulation. If the lter has a layer of dust, the
dust should be removed using a vacuum cleaner.
The carbon lter should be replaced every 10-12 weeks in order to guarantee proper operation of the unit. This is
essential and should not be forgotten! If this is not carried out, the lter will break down sooner than normal. To replace
the carbon lter, you rst have to remove the dust lter.
 Note : If you want to work with a humidier, make sure that it is connected to a reverse osmosis lter or scale lter. Fan
faults caused by lime deposits are not covered under the warranty.
If the dust lter is still clogged with white particles when using a humidier in conjunction with a scale lter, then an
osmosis lter is required. The water is too hard to use with a scale lter. There is no need to use a humidier if the space
is not too large.
Fault analysis and error messages
If the unit does not switch on and the remote control display and the LEDs on the printed circuit-board are off, most
likely there is no power supply. It is also possible that the internal fuse has blown. This fuse is located near the printed
circuit-board in a synthetic housing.
If there is power (the LED on the printed circuit-board ashes and the remote control display shows E:01), but the unit
does not switch on, two of the three phases should probably be switched. It does not matter which ones of the three
phases are switched.
If the fuse circuit breaker burst when the unit has to start cooling, most likely a fuse of the wrong value or incorrect type
was installed. Check the technical specications (page 8) for the correct details.
If the unit makes strange noises or is cooling poorly, check the manometer to ensure that the pointer is not pointing too
far to the right from the centre of the screen and check that the outdoor temperature (C:07) does not exceed 50°C.
If that is the case, make sure that the outdoor unit receives more / colder air and check whether the pointer of the
manometer drops.
If water drips from the sides of the unit, you have a problem with the condensation water drainage. Check whether the
unit has sufcient fall (see the Mounting section) using a spirit level. It is also possible that the condensation hose has
too many loops/bends or is blocked.

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FAULT ANALYSIS AND ERROR MESSAGES FAULT ANALYSIS AND ERROR MESSAGES
Temperature sensors in the unit.
There are 7 temperature sensors connected to the indoor unit. These can be read by pressing and releasing the S button
and navigating with the arrow keys. Typical values of these sensors are;
C:01 = Temperature cooling block 5°C - 15°C
C:02 = Temp. refrigerant from outdoor unit (Liquid / return) 23°C – 35°C
C:03 = Temperature of room 2 - 40° or dual Temp.
C:04 = Temperature intake (warm) air equal ambient temperature.
C:05 = Temperature (cold) outlet air 8-16°C lower than C:05
C:06 = Temperature low pressure (for compressor) Almost equal to C:01
C:07 = Temperature out(door air (with outdoor unit) Max 40°C
Fault code list
Error 01 = Usually means that the phases are crossed (reversal). Only active in the 15000 series.
Two of the three phases - it does not matter which - should probably be switched. If the unit has operated before, the
phases are connected properly. You may have a problem with the power supply (voltage). You can check this by
observing which LED is burning on the little white cupboard in the top of the electrical compartment.
Over voltage = Voltage is too high
Low voltage = Voltage is too low
Phase loss = Phase is interrupted
Reversal = Phase sequence is incorrect (crossed)
Normal = Phases are connected properly and the voltage is correct
Error 02 = Condensate does not drain.
Check the condensation drain for blockage and make sure the unit has sufcient fall towards the condensation drain.
Also note that all panels are installed. If the problem continues to exist, install a siphon. (See options on page 21).
Error 03 = Not applicable
Error 04 = Ambient temperature is too low
The unit is placed in a cold environment, causing the risk of freezing. The room in which the OptiClimate is installed
should be warmer than 4°C.
Error 05 = Ambient temperature sensor is not connected or is defective
Error 06 = Cooling block temperature sensor is not connected or is defective
Error 07 = Liquid / Return temperature sensor (AI03) is not connected or is defective
Error 08 = In Dual Room systems, error 08 indicates a problem with the second temperature sensor (AI04).
Error 09 = Thermal safeguard of the compressor is activated.
The compressor consumes too much current. Contact the Technical Service department, if the thermal safeguard jumps
again after resetting. The thermal safeguard is located at the left-hand side near the printed circuit board in the electrical
compartment.
Error 10 = Anti-freeze safeguard, the temperature of the cooling block is too low.
If the cooling block is colder than 0°C, it can freeze up. The unit stops cooling and starts to defrost. The minimum
pressure is 1.3MPa. You might have to increase the pressure slightly to reduce the cooling capacity. See the Settings
section to remedy this. The dust/carbon lters may also be blocked or the outlet is too scanty/tight (too few holes or the
hose is too thin). The result is that the unit cannot get rid of its cold air.
Error 11 = Poor cooling.
There is no proper cooling. There may be a leak in the cooling system and it needs to be repaired. The condenser of
the compressor may also be faulty.
Error 12 = High pressure protection.
If this error message appears, the outside air is too warm + 4°C or the fan of the outdoor unit is not running. It could
also be that one of the connections of the cooling hose is not or incorrectly connected.
If, at very high outside temperatures, the fan(s) in the outdoor unit switch on too late, an error 12 may arise. The
standard default of the fan is 30 seconds. In special cases, menu function D30 (temperature at which the fan in the
outdoor unit switches on) can also be lowered in increments of 2°C until the problem is resolved. In case of warm
outside temperatures, this can be shortened to 10 seconds, for instance. Refer to menu function D:31.
Error 13 = Low pressure protection.
Check the manometer when the unit is off. Is the pressure lower than 4bar/0.4Mpa? If yes, there is a leak in the cooling
system and it must be repaired.
Error 14 = Current interruption alarm.
The unit is deprived of current. This alarm, which is only visible in the alarm history at the bottom of the display,
indicates that there is a problem with the current.
Error 15 = High ambient temperature safeguard is active.
As soon as the ambient temperature drops below the set day temperature, the unit will switch on the sources of heat
and the error code will disappear. The number 15 will, however, continue to be shown in the log at the bottom of the
display. You can delete this by pressing and holding the R key.
Error 16 = Temperature outdoor air (with outdoor unit) too high 40°C.
Ensures that more / colder air is sucked in through the outdoor unit.
Error 17 = Temperature sensor AI05 not connected or is defective (no log)
Error 18 = Temperature sensor AI06 not connected or is defective (no log)
Error 19 = Temperature sensor AI07 not connected or is defective (no log)
Error 20 = Temperature sensor AI08 not connected or is defective (no log)

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OPTIONALLY AVAILABLE / INFORMATION LEAFLET PRO4 FAULT CODE OVERVIEW
Optionally available
Vibration isolation springs
Vibration absorbers for extra quiet rooms. These absorbers are meticulously calculated to bear the unit’s weight and
ensure nearly 100% contact insulation. No other solutions on the market offer a similar level of contact insulation.
Noise damping plate with adhesive layer (2 pieces)
Anti-vibration plates; absorbing plates for extra quiet rooms. These plates can be glued to the at panels of the unit to
limit noises radiated by the unit to a minimum.
Condensation water lift pump
Discharge head up to 4 metres. This pump is often used if there is no drain for the condensation water in the vicinity or
if the unit is placed lower than the drain. 6mm PVC hose connection.
Three-way valve
Comes with servomotor and additional temperature sensor of 10 metres. This valve enables cooling two rooms 12h by
12h if the Dual Room function is switched on. Each room has its own sensor and it scans the room where the cooling is
activated. The High Temperature Safeguard will be active for both rooms simultaneously.
Plenum box
This box can be installed at the backside of the OptiClimate, so that the unit can be placed outside the room. One
to three hoses can be connected to the plenum box to suck out the warm air from the room. Always measure the
dimensions of the suction hoses as large as possible.
Carbon lters (3 pieces)
See also Inspection and Maintenance
Long refrigerant hoses
Standard coolant hoses are supplied with a length of 8 meters. Upon request, hoses are also made to a length of 15
meter.
EX indoor unit
If the distance between the indoor and outdoor unit is more than 15 meter, a PRO3 PRO4 / split EX (extended range)
indoor unit should be used. The EX models are delivered with a standard 15meter refrigerant hose. As an option, hoses
can be up to 30meter.
Siphon.
If condensation problems occur and everything is properly connected, a siphon may be installed.
Information leaet PRO4
The PRO4 can also dehumidify the room in the day mode when no cooling is required. To activate this function option
D:39 can be adjusted in the menu.
1) Hold the S key pressed. D:01 will appear 2) Repeatedly press and release the S key until D:39 appears.
3) Using the arrow keys choose between 0 and 1 4) Conrm this with the on/off key.
D:39 = 0 dehumidication in day mode is off. D:39 = 1 dehumidication in day mode is on.
The standard setting of D:39 = 0.
At night the dehumidication is controlled by the automatic moisture meter. In day mode during cooling the unit always
dehumidies (scientic phenomena). The water released during dehumidication is recycled in the unit ensuring that the
electric heating will also not activate. The electric heating elements will only be activated if the night temperature drops
below the pre-set night temperature.
Keep this error list in the vicinity of the OptiClimate.
E:01 Phase monitor (only for 15000 pro3)
E:02 Condensation drain
E:03 Not Applicable
E:04 Ambient temperature too low (<4°)
E:05 Room temperature sensor not connected
E:06 Cooling block temperature sensor not connected
E:07 Liquid/ return sensor not connected
E:08 Room temperature sensor not connected (Dual Room)
E:09 Compressor motor thermal safeguard
E:10 Cooling block anti-freeze safeguard
E:11 Faulty or no cooling alarm
E:12 High pressure safeguard (cooling system)
E:13 Low pressure safeguard (cooling system)
E:14 Power interruption
E:15 High temperature safeguard
E:16 Temperature outdoor air (outdoor unit) too high
E:17 Temperature sensor AI05 not connected or is defective
E:18 Temperature sensor AI06 not connected or is defective
E:19 Temperature sensor AI07not connected or is defective
E:20 Temperature sensor AI08 not connected or is defective

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