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PAC 3500 SH – comfort air conditioner
Home Comfort
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  4. Comfort air conditioners of the PAC series
  5. PAC 3500 SH


4-in-1 air conditioner: cooling, heating, ventilation and dehumidification – for your individual feel-good climate on 365 days a year

For refreshing coolness in the summer and cosy warmth in the winter

At times it's just way too hot outside, then unpleasantly cold again – in the course of the year one often needs to adjust the room temperature by means of fan, air conditioning system, electric heater or oil-filled radiator. Wouldn't it be nice to have just one device that could master both: cooling and heating? The air conditioner PAC 3500 SH is suitable for year-round application, in addition to providing effective cooling it also comes with a reliable heating function. Come rain or shine – you can relax in constant feel-good temperatures within the individually adjustable range of 17 to 30 °C. Owing to its high-class design, the stylish white air conditioner blends in with any environment – be it at home, at the office, in a restaurant, sales room, hotel or your own holiday home.

Suitable for year-round application – with energy-saving automatic mode 

With a cooling capacity of 3.5 kW / 12,000 Btu/h (energy efficiency category A) the air conditioner cools bedrooms, living and office spaces sized up to 46 m² / 115 m³ and inevitably heated by the summer sun down to the individually preset target temperature. The refrigerating compressor automatically switches off to save energy when reaching the target value and back on when another cooling cycle is required. And on the colder days of the year the air conditioner PAC 3500 SH with a heating capacity of 2.9 kW (energy efficiency category A) quickly supplies soothing warmth. Set to convenient automatic operation, the device independently regulates the ventilation, cooling and heating operation depending on the ambient temperature and the set target temperature. This is an energy-efficient solution, seeing as the device only produces the output needed to reach and maintain the desired temperature. With additionally activated swing function the air outlet continuously opens and closes, thus distributing the blown-out cold or warm air evenly in the room.

Dehumidification included – for an ideal room climate 

Per hour, the dehumidification function withdraws up to 0.05 litres of excess moisture from the room air. This is a quick instrument to alleviate the oppressive sultriness and in the long term it can even prevent the unhealthy formation of mould in the room. The easy-to-clean air filter additionally cleans the room air from dust, fluff and animal hair. And if you're in the mood for a fresh breeze whilst saving energy, the 3-stage ventilation mode can provide instant cooling on your skin without activating the refrigerating compressor. This comprehensive functional range recommends the PAC 3500 SH as an all-round solution to be used all year to create an optimum feel-good climate. By the way, in order to meet the latest climate protection requirements, we use the environmentally friendly refrigerant R290.

Convenience is a major priority

The comfort equipment of air conditioner PAC 3500 SH impresses across the board. All functions and parameters can be either set directly at the intuitive control panel with membrane keys or conveniently from your present position by means of the remote control.

Product brochure Guide to practical knowledge of room cooling


Enjoy pleasant refreshment! You can also find all the relevant information about our comfort air conditioning units in the product brochure. Download the PDF directly here.

To the PDF document

Environmentally friendly refrigerant R290

Propane (R290) as environmentally friendly refrigerant in air conditioning systems

Every year, several million tons of harmful CO2 emissions (greenhouse gas) are emitted to the atmosphere due to synthetic refrigerants. For this reason, the utilization of alternative refrigerants has become one of our key objectives. By using propane (R290) as refrigerant this air conditioner makes a valuable contribution to protecting our climate.

The natural refrigerant propane (R290) is an organic compound belonging to the group of hydrocarbons. Unlike synthetic refrigerants the environmentally friendly propane (R290) comes with neither ozone depletion potential (ODP = 0) nor a noteworthy greenhouse effect (GWP = 3).

Additional bonus for the environment: Owing to its excellent thermodynamic properties, propane (R290) is a particularly energy-efficient refrigerant thereby additionally reducing your energy costs. 

Follow Me function – smart temperature regulation via remote control

Normally, the integrated thermostat measures the current room temperature at the location of the air conditioner and indicates it on the LED display. However, as an alternative option, you can also measure the temperature at the current position of the remote control. When the Follow Me function is activated, the remote control automatically transmits the current temperature value to the air conditioner at 3-minute intervals and – depending on the selected cooling or heating function – the air conditioner is then adjusted accordingly. So if you move the remote control from a shaded to a sunny location, the air conditioner will correspondingly increase the cooling capacity to compensate the higher temperatures.

Feel-good temperatures on schedule – using the 24-hour timer

Programme your feel-good climate for any time of day or night. Using the 24-hour timer you can easily adjust the settings of the air conditioner PAC 3500 SH as needed to suit your individual daily routine. What is to be said against a relaxed start into the day with a preselected target temperature? The air conditioner PAC 3500 SH independently sees to the cooling or heating of the room in automatic mode. Ban the heat that has built up during the day from your living or bedroom at the time you finish work and are about to return home. Needless to say, the switch-off of the device can also be pre-scheduled – to make sure you don't forget to turn off the one at the office when going off duty. The compact air conditioner comes equipped with low-friction rollers and recessed handles permitting its flexible application in different rooms. The integrated memory function ensures that the operating mode selection is saved after switch-off.

The night mode – for agreeable temperatures in your bedroom

The air conditioner PAC 3500 SH features a very convenient night mode. For drifting off to sleep untroubled by high temperatures the preset target temperature is gradually increased or reduced by 2 °C over a period of 1.5 hours and then maintained for 7 hours – after which the temperature will be set back to the original target value. That way you arise well-rested in an agreeably temperature-controlled room. Thankfully, with max. 54.5 dB(A) at a distance of one metre – depending on the setting – the noise generation of the device can be referred to as agreeably silent and is therefore not disruptive to a good night's rest. Moreover, the LEDs on the display can be switched off.

No matter if it's too hot or too cold, the 4-in-1 air conditioner PAC 3500 SH permits flexible year-round application!

Calculation of the required cooling capacity

Quick calculation of the required cooling capacity for living and office spaces

Find out how to easily calculate the cooling capacity required for your living and office spaces.

How much power is required to cool a room? The rule of thumb: Every cubic metre of room volume requires a cooling capacity of 30 watts (1 m3 = 30 W).

Using this blanket value the required cooling capacity can be determined quickly and easily for every room size. Example: Assuming a room with 46 m² of floor space and a room height of 2.5 m ... The resulting calculation reads as follows:

Room volume calculation:
46 m² of floor space x 2.5 m ceiling height = a room volume of 115 m³

Calculation of the cooling capacity required for the room volume:
115 m³ cubature x 30 watts of cooling capacity = required cooling capacity of 3,450 watts

Conversion from watt to kilowatt:
3,450 W = 3.45 kW

Result: In a room with 46 m² of floor space and a height of 2.5 m you need an air conditioner with a cooling capacity of approx. 3.5 kW – such as the PAC 3500 SH. 

This is only a rough calculation formula for living and office spaces with modern insulation (passive house standard), though. The required cooling capacity further depends on the room's "thermal load": For selecting an appropriate air conditioner, the factors of insolation, insulation, window dimensions, the number of persons as well as the heat sources play an equally important role.

You would like to find out more? Our info page "Practical knowledge concerning air conditioning" contains all the important information. By reading it you will quickly become an air conditioning expert.

AirLock window and door seals

ACCESSORY TIP: AirLock window seals prevent warm air from streaming back into the room you are trying to cool. 

The warm air is discharged through an air conditioner's exhaust air hose and thus through a window into the open air. In order to keep the warm air from streaming right back into the room through the window gap we recommend using AirLock window or door seals.

AirLock 100 window seal

The window seal AirLock 100 is suitable for windows with a maximum perimeter of up to 4 metres.  The hose can be attached to any type of window (casement, bottom-hung or skylight windows). With the Velcro® tape mounting between window and frame only takes a few steps. This ensures an optimal cooling efficiency in the room and substantially reduces the consumption costs of your air conditioner.

AirLock 1000 door and window seal

Also perfect for floor-to-ceiling windows or balcony and patio doors.

The convenient door and window seal AirLock 1000 was specifically designed for sealing floor-to-ceiling windows or balcony and patio doors – it is the only window seal on the market that has a perimeter of up to 5.6 metres.   The AirLock 1000 can be used for both one- or two-hose devices. Further information on all available AirLock versions is provided here.

PAC 3500 SH – special equipment features

PAC 3500 SH – dimensions
With its stylish white housing the compact air conditioner blends in perfectly with any living or working environment. With a cooling capacity of 3.5 kW and a heating capacity of 2.9 kW it ensures year-round agreeable feel-good temperatures for rooms sized up to 46 m² or 115 m³.
PAC 3500 SH – energy label
The cooling capacity of air conditioner PAC 3500 SH was rated with energy efficiency category A, the heating capacity received an A rating. Therefore, you can be on the safe side that your electricity costs will keep within reasonable bounds. Inside the device, the environmentally friendly refrigerant R290 is used.
PAC 3500 SH – swing function
When the swing function is activated, the air outlet flap is automatically raised and lowered. This helps to distribute the cold or warm air effectively and evenly in the room. But the flap can also be fixed in place at a position of your choice.
PAC 3500 SH – air filter
The air filter integrated at the rear of the device cleans the room air from dust, fluff and animal hair. It can be removed without difficulty and cleaned without great effort. All in all the combined air conditioner and heater PAC 3500 SH unites an uncomplicated, quick and easy installation, maintenance and servicing.
PAC 3500 SH – control panel
The neatly arranged control panel with membrane keys reveals all important setting options at one glance and so offers a very intuitive operation. Depending on the setting the LED display indicates the current room temperature, the desired target temperature or the number of hours until the pre-programmed automatic switch-on or -off.
PAC 3500 SH – remote control
All functions can also be controlled via the infrared remote control. With the Follow Me function the remote control measures the room temperature at the current location and transmits the value to the air conditioner. The cooling capacity is automatically adjusted according to the measured value. And using the "short cut" button you can save preferred settings.
PAC 3500 SH – recessed handle and castors
The device comes equipped with smooth-running wheels. Thanks to the integrated recessed handles the air conditioner can quickly and easily be moved from one room to the next, hence you can enjoy cooling or warmth wherever you want.
PAC 3500 SH – condensate drain
Set to dehumidification mode the device withdraws up to 0.05 litres of moisture per hour from the room air. In case of a high humidity level or continuous cooling operation, the condensate can also be permanently drained from the residual water tank through a discharge hose.

PAC 3500 SH – ventilation and dehumidification
For an ideal room climate: Enjoy the fresh breeze emitted at 3 different speed levels – the integrated fan can also be used without cooling function. The dehumidification function of the PAC 3500 SH fights the oppressive, muggy room air. Moreover, the integrated air filter retains dust, lint and animal hair.
PAC 3500 SH – feel-good climate on 365 days a year
With the combined air conditioner and heater PAC 3500 SH you can benefit from an individually adjustable feel-good climate on 365 days a year. During the hot phases of the year the device cools the room air quickly and effectively. And on the somewhat chillier days it can generate an agreeable, cosy warmth.
Comfort air conditioners of the PAC series

All Comfort air conditioners of the PAC series in direct comparison:

To find the Comfort air conditioners of the PAC series which exactly meets your requirements, please consult the concise overview of all Comfort air conditioners of the PAC series from Trotec, which we’re providing to you here so that you can compare them directly to each other.

Models which you do not wish to include in your comparison can be easily dismissed with only one click.

Technical data by comparison

A few practical benefits:

  • 4-in-1 air conditioner: cooling, heating, ventilation, dehumidification
  • Suitable for rooms sized up to 46 m² / 115 m³
  • Cooling capacity of up to 3.5 kW (energy efficiency category A)
  • Heating capacity of up to 2.9 kW (energy efficiency category A)
  • 3 fan settings
  • 24-hour timer function
  • Practical LED display
  • Room temperature display
  • Easy-to-clean membrane keypad
  • Swing function
  • IR remote control with integrated temperature measurement
  • Automatic operation
  • Removable air filter
  • Air cleaning function (animal hair, fluff, dust)
  • Night mode
  • Quiet operation ≤ 54.5 dB(A)
  • Environmentally friendly refrigerant R290

All important features at a glance

Cooling capacity
Cooling capacity With its 3.5 kW the air conditioner provides a pleasantly chilled feel-good climate.
Heating function
Heating function At the push of a button the heating capacity of 2.9 kW ensures cosy warmth for cold days.
Dehumidification function
Dehumidification function The humidity level in the room can be reduced even without the cooling function.
3 fan settings
3 fan settings The room air is circulated even when the cooling function is switched off.
Automatic function
Automatic mode Controls the cooling level depending on the ambient and target temperature.
Swing function
Swing function Ideal air distribution thanks to on-demand vertical swing function of the air outlet opening.
Remote control
Remote control Control your air conditioner conveniently using the infrared remote control, incl. Follow Me function.
LED display
LED display The backlit LED display provides information on all important parameters.
Self-diagnosis Detection of faults and precise indication of the source of error.
Night mode
Night mode Helps you to sleep healthily by way of a slow, constant temperature increase.
Timer function
Timer function The air conditioner automatically switches on or off after the desired period.
Room thermostat
Room thermostat The current room temperature is determined by the integrated thermostat.
Air filter
Air filter Anti-bacterial, washable filter for air quality improvement.
Auto restart function
Auto restart function Remembers the previously selected settings for the next switch-on.
Castors Thanks to the low-friction castors the air conditioner can be positioned as needed.
Climate know-how from Trotec

Monobloc or split? One-hose or two-hose technology?

Don't get hosed by competitive statements, we provide the big picture. Before purchase make sure to get an overview of device differences, functional principles and possible applications.

Trotec, your climate expert, has compiled the most important facts in a reader-friendly overview! Direct link to the "Practical knowledge concerning air conditioning" ...

Tested for safety

Benefit from the Trotec brand quality guaranteeing high value, safety and functionality. Via the registered GS mark the inspection authority TÜV SÜD certifies that, if used foreseeably and as intended, the device does not pose a risk to the health and safety of the user.

A boost of freshness: Enjoy maximum refreshment anywhere in the room! 

Do you want to additionally support the effect your air conditioner has? In order to really distribute the cool air into every last corner of the room we recommend using the powerful fan TFH 2000 E with turbo spin technology. The extremely compressed turbulent air flow gushes out of the TFH 2000 E as tornado-like air column that revolves around itself and advances deep into the room. The air current breaks through warm and cold room air zones mixing it all up. The exiting air current encounters the opposite wall or the ceiling and from there is deflected to all sides.

In a constant circulation the air returns to the rear of the fan flowing along the side walls and the ceiling. It is sucked in once more to start a new cycle. This effective turbo spin method ensures maximum circulation and mixing of the room air. The temperature difference between cold air near the ground and warm air just beneath the ceiling is substantially reduced, instead the air temperature in the entire room is noticeably evened out.


Optimum room temperature control with the socket thermostat BN30

Just install it in the socket and connect it to the heating or cooling device on the socket thermostat BN30, and you can have your heating or cooling unit automatically switched on and off by the BN30 depending on the temperature. The socket thermostat available as an accessory is individually adjustable within a temperature range from 5 °C to 30 °C.

Radio thermostat BN35 with timer switch for the socket

Radio thermostat BN35

With the radio thermostat BN35 you can easily determine at which room temperature your heating or cooling unit will switch on or off using the remote control. The BN35 set consists of a radio-controlled socket and a radio thermostat. Simply plug the radio-controlled socket in between a wall outlet and your heating or cooling unit. Place the radio thermostat within approx. 20 metres in the place where the room temperature is to be measured. As an alternative, time-controlled regulation can also be carried out.


Local Air Condition PAC 3500 SH show in Trotec online shop

Technical data

Technical data
General information
  Article number
Cooling capacity
  Max. cooling capacity [kW] 3.5
  Max. cooling capacity [Btu/h] 12,000
Heating capacity
  kW 2.9
Recommended room size
Air flow rate
  Level Max. [m³/h] 420
  stages 3
Dehumidification performance
  Max. dehumidification performance [l/h] 0.05
Attainable room temperature
  (min.) depending on operating conditions [°C] 17
  (max.) depending on operating conditions [°C] 30
Ambient conditions
  Min. temperature range [°C] 17
  Max. temperature range [°C] 35
Electrical values
  Mains connection 220 - 240 V, 50 Hz
  Power input [kW] 1.6
  Nominal current consumption [A] 8
  Recommended fusing [A] 10
Electric connection
  Connection plug CEE 7/7
  Cable length [m] 1.8
  Minimum room size [m²] 11
  refrigerant R290
  Amount of refrigerant [g] 230
  GWP factor 3
  CO2 equivalent 0.00069 t
  Pressure suction side [MPa] 1
  Pressure outlet side [MPa] 2.6
Sound values
  Noise emission [dB(A)] according to EN ISO 3745:2012 64 dB(A)
  Level Max. - Distance 1 m [dB(A)] 54.5
Exhaust air
  Total length [m] 1.5 m
  Diameter [mm] 153
  Length (packaging excluded) [mm] 395
  Width (packaging excluded) [mm] 460
  Height (packaging excluded) [mm] 786
  (packaging excluded) [kg] 34
Equipment, features and functions
Condensate draining
  Exhaust air
  With condensate drain
  With condensation tray
  With water tank
Timer function
  Switch-on time preselectable
  Switch-off time can be preselected
Room thermostat
Room air filter
  Readily accessible
Additional functions
  Dehumidification function
  Heating function
  Ventilation function
  Automatic function
  Sleep mode
  Follow Me function
  Automatic fault diagnosis
  Swing function
  Fan rundown function
  Auto restart function
Control panel
  Mikroprozessorgesteuerter Betrieb
  Elektronisches Bedientableau
  LED display
  Carry/transport handle(s)
  Plastic wheels
  Rubber-tyred metal wheels
  Non-marking full-rubber wheels
  Swivel casters with parking brakes
  Adjustable bar handle
Housing design

 standard equipment

 optionally available

 not available



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