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TRT-BA-PAC3550PRO-TC2016-03-005-EN
PAC 3550 PRO
EN
OPERATING MANUAL
LOCAL AIR CONDITIONER
2 EN
local air conditioner PAC 3550 PRO
Table of contents
Notes regarding the operating manual.................................2
Safety .....................................................................................2
Information about the device................................................4
Transport and storage...........................................................5
Assembly and installation.....................................................5
Operation ...............................................................................9
Errors and faults..................................................................13
Maintenance ........................................................................15
Technical annex...................................................................18
Disposal ...............................................................................18
Notes regarding the operating manual
Symbols
Warning of electrical voltage
This symbol indicates dangers to the life and health of
persons due to electrical voltage.
Warning
This signal word indicates a hazard with an average
risk level which, if not avoided, can result in serious
injury or death.
Caution
This signal word indicates a hazard with a low risk
level which, if not avoided, can result in minor or
moderate injury.
Note
This signal word indicates important information
(e.g. material damage), but does not indicate hazards.
Info
Information marked with this symbol helps you to carry
out your tasks quickly and safely.
Follow the manual
Information marked with this symbol indicates that the
operating manual must be observed.
You can download the current version of the operating manual
and the EU declaration of conformity via the following link:
PAC 3550 PRO
https://hub.trotec.com/?id=41283
Safety
Read this manual carefully before starting or using the
device. Always store the manual in the immediate vicinity
of the device or its site of use!
Warning
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may
result in electric shock, fire and/ or serious injury.
Save all warnings and instructions for future
reference.
This appliance can be used by children aged from
8years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe
way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and
user maintenance shall not be made by children
without supervision.
Do not use the device in potentially explosive rooms.
Do not use the device in aggressive atmosphere.
Set the device up in an upright and stable position.
Let the device dry out after a wet clean. Do not operate it
when wet.
Do not use the device with wet or damp hands.
Do not expose the device to directly squirting water.
Never insert any objects or limbs into the device.
Do not cover or transport the device during operation.
Do not sit on the device.
This appliance is not a toy! Keep away from children and
animals. Do not leave the device unattended during
operation.
Check accessories and connection parts for possible
damage prior to every use of the device. Do not use any
defective devices or device parts.
EN 3
local air conditioner PAC 3550 PRO
Ensure that all electric cables outside of the device are
protected from damage (e.g. caused by animals). Never
use the device if electric cables or the power connection
are damaged!
The electrical connection must correspond to the
specifications in chapter Technical data.
Insert the mains plug into a properly secured mains
socket.
Observe the technical data when selecting extensions to
the power cable. Completely unroll the extension cable.
Avoid electrical overload.
Before carrying out maintenance, care or repair work on
the device, remove the mains plug from the mains socket.
Hold onto the mains plug while doing so.
Switch the device off and disconnect the power cable from
the mains socket when the device is not in use.
Do not under any circumstances use the device if you
detect damages on the mains plug or power cable.
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
Defective power cables pose a serious health risk!
When positioning the device, observe the minimum
distances from walls and other objects as well as the
storage and operating conditions specified in the Technical
data chapter.
Make sure that the air inlet and outlet are not obstructed.
Do not remove any safety signs, stickers or labels from the
device. Keep all safety signs, stickers and labels in legible
condition.
Make sure that the suction side is kept free of dirt and
loose objects.
Only transport the device in an upright position with an
emptied condensation tray or drain hose.
Discharge the collected condensate before transport and
storage. Do not drink it. Health hazard!
Intended use
Only use the device for cooling, ventilating and dehumidifying
indoor air whilst adhering to the technical data.
Improper use
Do not place the device on wet or flooded ground.
Do not place any objects, e.g. clothing, on the device.
Do not use the device outdoors.
Any unauthorised modifications, such as alterations or
structural changes to the device, are forbidden.
Any operation other than as described in this manual is
prohibited. Non-observance renders all claims for liability
and guarantee null and void.
Personnel qualifications
People who use this device must:
be aware of the dangers that occur when working with
electric devices in damp areas.
have read and understood the operating manual, especially
the Safety chapter.
Maintenance tasks which require the housing to be opened
must only be carried out by specialist companies for cooling and
air-conditioning or by Trotec.
Residual risks
Warning of electrical voltage
Work on the electrical components must only be
carried out by an authorised specialist company!
Warning of electrical voltage
Before any work on the device, remove the mains plug
from the mains socket!
Hold onto the mains plug while pulling the power cable
out of the mains socket.
Warning
Dangers can occur at the device when it is used by
untrained people in an unprofessional or improper way!
Observe the personnel qualifications!
Warning
The device is not a toy and does not belong in the
hands of children.
Warning
Risk of suffocation!
Do not leave the packaging lying around. Children may
use it as a dangerous toy.
Note
Do not operate the device without an inserted air filter!
Without an air filter the inside of the device will be
heavily contaminated, which could reduce the
dehumidification performance and result in damage to
the device.
Behaviour in the event of an emergency
1. Switch off the device.
2. In an emergency, disconnect the device from the mains
feed-in: Hold onto the mains plug while pulling the power
cable out of the mains socket.
3. Do not reconnect a defective device to the mains.
4 EN
local air conditioner PAC 3550 PRO
Information about the device
Device description
The device serves the purpose of cooling the room air. It further
filters and dehumidifies the air thus creating an agreeable room
climate.
The device uses two separate air hoses for cooling. The supply
air is fed from outside, not from the room. No negative pressure
is built up in the room and no warm air from outside penetrates
into the room. Yet, fresh air is constantly fed to the air
conditioner and distributed over the room by the fan.
Air conditioners with two-hose technology are up to 25% more
efficient.
If required, the device can also be operated with an exhaust air
hose only. In this case, the supply air is fed from the room.
When operated with an exhaust air hose, the device cools the
room air by extracting heat from it. The absorbed warmth is
emitted to the outside via the exhaust air hose; cooled air is fed
to the installation site by means of a fan.
Accumulating condensate drips from the evaporator onto the hot
condenser, there it evaporates and then is transported to the
outside via the exhaust air hose.
In ventilation mode the device provides the opportunity of air
circulation without cooling effect.
In dehumidification mode moisture is withdrawn from the air.
The device operates fully automatically and features a variety of
further options. The device can, for instance, be switched on or
off automatically with time delay via the timer function.
Operation of the device is possible either via the control panel at
the device or via the supplied infrared remote control.
The device was designed for universal and flexible application.
Due to its compact dimensions it can be easily transported and
used in all interior spaces.
Device depiction
1
2
3
4
6
8
9
10
12
11
5
7
16
17
14
13
15
EN 5
local air conditioner PAC 3550 PRO
No. Designation
1 Air outlet with ventilation flaps
2 Control panel
3 Wheels
4 Compartment for remote control
5 Air inlet with air filter
6 Supply air hose connection
7 Exhaust air hose connection
8 Air inlet
9 Air inlet control knob
10 Condensate outlet with sealing cap and rubber stopper
11 Remote control
12 Air hose (exhaust air hose and supply air hose)
13 Air filter for air inlet
14 Air filter for air inlet
15 Flat nozzle
16 Power cable holder
17 Transport handle
Transport and storage
Note
If you store or transport the device improperly, the
device may be damaged.
Note the information regarding transport and storage of
the device.
Transport
To make the device easier to transport, it is fitted with wheels.
To make the device easier to transport, it is fitted with a carry
handle.
Before transporting the device, observe the following:
Switch off the device.
Hold onto the mains plug while pulling the power cable out
of the mains socket.
Do not use the power cable to drag the device.
Drain the remaining condensate from the device.
Only wheel the device on a level and smooth surface.
After transporting the device, observe the following:
Set up the device in an upright position after transport.
Leave the device to rest for 12to24hours, so the
refrigerant can accumulate within the compressor. Wait
12to24hours before switching the device back on! Acting
contrary might lead to compressor damage and a
malfunctioning device. If so, any warranty claims will be
voided.
Storage
Before storing the device, proceed as follows:
Drain the remaining condensate from the device.
Hold onto the mains plug while pulling the power cable out
of the mains socket.
When the device is not being used, observe the following
storage conditions:
dry and protected from frost and heat
in an upright position where it is protected from dust and
direct sunlight
with a cover to protect it from invasive dust, if necessary
Place no further devices or objects on top of the device to
prevent it from being damaged.
Remove batteries from the remote control.
Assembly and installation
Scope of delivery
1x Device
2x Air hose
1x Insert for sliding window
2x Cover for sliding window insert
1 x Remote control
2x Flat nozzle
10 x Fastening screw
1x Manual
Unpacking the device
1. Open the cardboard box and take the device out.
2. Completely remove the packaging.
3. Fully unwind the power cable. Make sure that the power
cable is not damaged and that you do not damage it during
unwinding.
6 EN
local air conditioner PAC 3550 PRO
Start-up
When positioning the device, observe the minimum distance
from walls or other objects as described in the Technical data
chapter.
A
B
C
C
D
Before restarting the device, check the condition of the
power cable. If there are doubts as to the sound condition,
contact the customer service.
Set the device up in an upright and stable position.
Do not create tripping hazards when laying the power
cable or other electric cables, especially when positioning
the device in the middle of the room. Use cable bridges.
Make sure that extension cables are unrolled completely.
Keep air inlets and outlets as well as the exhaust air hose
connection free.
Make sure that no curtains or other objects interfere with
the air flow.
Inserting the air filter
Note
Do not operate the device without an inserted air filter!
Without an air filter the inside of the device will be
heavily contaminated, which could reduce the
dehumidification performance and result in damage to
the device.
Make sure that both air filters are installed before
switching the device on.
Connecting the supply air hose and exhaust air hose
1. Connect the flat nozzle(15) to one end of the air hose(12).
2. Connect the other end of the air hose to the hose adapter.
3. Screw the hose adapter into the air conditioner's
connection for the exhaust air hose(7) or supply air
hose(6) in the direction of the arrow (see figure below).
15
12
6
EN 7
local air conditioner PAC 3550 PRO
4. Check the position of the air inlet control knob(9). It should
be in closed position if the supply air hose is connected.
The venting slots at the air inlet(8) are closed.
If you do not connect the supply air hose, the air inlet
control knob(9) should be in open position. The venting
slots at the air inlet(8) are open.
9
8
Feeding supply air via the supply air hose
The supply air can be fed from outside to avoid creating
negative pressure in the room.
The end of the supply air hose can be guided through the
open window. If required, secure the open window with
the corresponding means, so that the end of the supply air
hose cannot shift.
The end of the supply air hose can also be hooked into a
tilted window.
For this purpose, we recommend using a window seal
(optional).
Check whether the venting slots at the air inlet(8) are
closed. If the venting slots are open, please proceed as
follows:
1. Slide the air inlet control knob(9) to closed position.
ð The venting slots at the air inlet(8) are closed.
Discharging exhaust air
The exhaust air coming from the device contains waste
heat from the room to be cooled. For this reason it is
recommended to discharge the exhaust air to the outside.
The end of the exhaust air hose can be fed through the
open window. If required, secure the open window with
the corresponding means, so that the end of the exhaust
air hose cannot shift.
The end of the exhaust air hose can also be hooked into a
tilted window.
For this purpose, we recommend using a window seal
(optional). When attaching the window seal, a minimum
distance of 30cm should be maintained between the
twohoses.
Install the exhaust air hose inclined with the air direction.
How to use the insert
Affix the inserts in the window gap and adjust the length
as needed. If required, use the extension pieces.
Connect the flat nozzle to the insert:
A.
B.
C.
If you want to use the second air hose, connect it to the
insert too. Note that the flat nozzle is firmly connected to
the insert.
Close the window until the insert is held securely.
8 EN
local air conditioner PAC 3550 PRO
Example with exhaust air hose and supply air hose:
Example with exhaust air hose:
For installing the exhaust air hose please observe the following:
≥ 43 cm
≤ 1 m
Avoid kinks and bends in the exhaust air hose, as they
would lead to an accumulation of emitted humid air
causing the device to overheat and shut down.
The dimensions of the exhaust air hose were especially
made to fit the device. Do not replace or extend the hose,
for it could cause a malfunction.
EN 9
local air conditioner PAC 3550 PRO
Adjusting the ventilation flaps
Prior to switching the device on, open the ventilation flaps
at the air outlet(1).
Connecting the power cable
Insert the mains plug into a properly secured mains
socket.
Operation
Avoid open doors and windows.
Operating elements
MID
COOL
C
Hr
HIGH LOWTIMER
FAN DRY
AUTO
F
18 19 20 21 22 23 24
2526
27
No. Designation Function
18 Timer button Automatic switch-on timer
function in increments of 1hour
(1h to 24h)
Automatic switch-off timer
function in increments of 1hour
(1h to 24h)
19 Fan speed button Setting the fan speed in 3stages
(low, medium, high).
Only enabled in cooling and
ventilation mode.
No. Designation Function
20 Increase value
button
Increasing the target temperature
(17°C to 30°C) or the number of
hours of the timer (1h to 24h).
21 Segment display Display of desired room
temperature when in operation
Display of current room
temperature when in standby
Display of timer
Fan speed indication:
F3= highest fan speed
F2= medium fan speed
F1= lowest fan speed
Display of error codes
22 Decrease value
button
Decreasing the target
temperature (17°C to 30°C) or
the number of hours of the timer
(1h to 24h).
23 Operating mode
button
Selecting the operating mode:
cooling
ventilation
dehumidification
24 Power button Switching the device on or off
25 Fan speed
indication
Indicates the fan speed:
HIGH = highest stage
MID = middle stage
LOW = lowest stage
26 Timer indication Illuminated when the timer
function is activated.
27 Operating mode
indication
Indicates the selected operating
mode:
COOL= cooling
FAN= ventilation
DRY= dehumidification
Switching the device on
1. Allow the device to rest for a time.
2. Once you have completely installed the device as
described in the Start-up chapter, you can switch it on.
3. Press the power button(24).
ð The device starts in cooling mode at 22°C and at the
highest fan speed (initial start-up).
In standby mode, the device saves the previously selected
settings. These settings are not saved if the device is
disconnected from the mains.
The device switches off automatically when the condensation
tank is full. FL appears on the display.
10 EN
local air conditioner PAC 3550 PRO
Setting the operating mode
The device has the following operating modes:
cooling
ventilation
dehumidification
Cooling
In cooling mode the room will be cooled down to a certain
preselected temperature.
1. Use the operating mode button(23) to select cooling mode.
ð COOL appears on the operating mode indication(27).
ð The currently selected target temperature is shown on
the segment display(21).
ð The currently selected fan speed is shown on the fan
speed indication(25).
2. Select the desired target temperature by use of the
increase value(20) or decrease value(22) button.
Temperatures between 17°C and 30°C can be selected.
3. Select the desired fan speed by use of the fan speed
button(19).
ð The target temperature and fan speed are shown on the
display.
Info
If the device is operated in a very humid environment,
the accumulating condensate must be discharged at
regular intervals (see chapter Condensate discharge).
Ventilation
Info
Remove the exhaust air hose during ventilation.
In ventilation mode the room air is circulated, but not cooled.
The respective stage HIGH/MID/LOW appears on the fan speed
indication(25) and the respective stage F3/F2/F1 appears on
the segment display(21). The temperature cannot be set.
1. Use the operating mode button(23) to select ventilation
mode.
ð FAN appears on the operating mode indication(27).
ð The currently selected fan speed is shown on the fan
speed indication(25).
2. Select the desired fan speed by use of the fan speed
button(19).
ð The respective stage HIGH/MID/LOW appears on the fan
speed indication(25) and the respective stage F3/F2/F1
appears on the segment display(21).
Dehumidification
In dehumidification mode the humidity level in the room is
reduced.
LOW is displayed on the fan speed indication(25) and F1
appears on the segment display.
If the room temperature is 15°C, the compressor starts. If the
room temperature drops below 15°C, the compressor stops
and only starts again at 15°C with a delay of approx.3min.
Info
Remove the exhaust air hose and supply air hose
during dehumidification, otherwise the
dehumidification performance is too low and FL is
displayed.
1. Use the operating mode button(23) to select
dehumidification mode.
ð DRY appears on the operating mode indication(27).
ð The temperature and the fan speed (LOW) are preset in
this operating mode and cannot be changed.
Info
If the device is operated in a very humid environment,
the accumulating condensate must be discharged at
regular intervals (see Condensate discharge (manual
draining) in the Maintenance chapter).
Setting the timer
The timer has two modes of operation:
automatic switch-on upon expiry of a preset number of
hours.
automatic switch-off upon expiry of a preset number of
hours.
The function can be set in all operating modes and also during
stand-by.
The number of hours can be between 1 and 24 and can be
adjusted in increments of 1h.
Note
Do not leave the operating device unattended in a
freely accessible room with an activated timer.
EN 11
local air conditioner PAC 3550 PRO
Automatic switch-on
ü The device is switched off.
1. Press the timer button(18).
ð The timer indication(26) on the display is illuminated.
ð The current operating mode (COOL, FAN or DRY), the
fan speed and the flashing, current switch-on time in
hours are shown on the display.
2. Select the desired number of hours for the switch-on time
by use of the increase value(20) or decrease value(22)
button.
ð The number of hours flashes on the segment
display(21).
3. Adjust these settings as appropriate.
4. Wait for approx.5seconds until the display turns darker.
Your settings are now saved.
ð The respective stage HIGH/MID/LOW appears on the fan
speed indication(25) and the respective stage F3/F2/F1
appears on the segment display(21). Moreover, the
display will show the operating mode(27) and the timer
indication(26).
Notes regarding automatic switch-on:
Manually switching the device on disables the automatic
switch-on function.
If you select 0hours, the timer will be off.
Automatic switch-off
ü The device is switched on.
1. Select the desired operating mode by means of the
operating mode button(23).
2. Press the timer button(18).
ð The timer indication(26) on the display is illuminated.
3. Select the desired number of hours for the switch-off time
by use of the increase value(20) or decrease value(22)
button.
ð The number of hours flashes on the segment
display(21).
4. Wait for 5seconds in order to save the setting.
ð The display changes back to the previous indication.
ð The timer indication(26) is permanently illuminated to
confirm automatic switch-off.
Notes regarding automatic switch-off:
Pressing the power button(24) deactivates the automatic
switch-off function.
Night mode
Night mode can only be activated in cooling mode. Night mode
comes with the following settings:
After 2hours the preset temperature is increased by 1°C.
After another 2hours the temperature is again increased
by 1°C, thus the preset temperature is increased by a total
of 2°C within 4hours. Afterwards, the temperature is kept
at this value.
The fan speed is automatically lowered to the min. level
and cannot be changed manually.
The swing function can be switched on via the remote
control if required.
To activate night mode, please proceed as follows:
1. Use the operating mode button(23) to select cooling mode.
2. Simultaneously press the timer(18) and decrease
value(22) buttons.
ð The fan speed is automatically adjusted to the lowest
level.
ð The night mode is not shown on the display.
3. To switch off night mode, simultaneously press the
timer(18) and decrease value(22) buttons again.
9


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