Dometic ColdMachine 50 Refrigeration Cooling Units Instruction Manual

REFRIGERATION
COOLING UNITS

ColdMachine 50, 54, 55, 84, 85, 86, 94, 95, 96, CS-NC15
Cooling unit
Installation and Operating Manual

ColdMachine 50 Refrigeration Cooling Units

Please read this instruction manual carefully before installation and first use, and store it in a safe place. If you pass on the product to another person, hand over this instruction manual along with it.

Explanation of symbols

| DANGER!
Safety instruction: Failure to observe this instruction will cause fatal or serious injury.
---|---
**| WARNING!
Safety instruction: Failure to observe this instruction can cause fatal or serious injury.
**| CAUTION!
Safety instruction: Failure to observe this instruction can lead to injury.
| NOTICE!
Failure to observe this instruction can cause material damage and impair the function of the product.
| NOTE
Supplementary information for operating the product.

Safety instructions

The manufacturer accepts no liability for damage in the following cases:

• Faulty assembly or connection
• Damage to the product resulting from mechanical influences and incorrect connection voltage
• Alterations to the product without express permission from the manufacturer
• Use for purposes other than those described in the operating manual

2.1 General safety
DANGER!

• Danger of fatalinjuries!
  When using the device on boats: if the device is powered by the mains, ensure that the power supply has a residual current circuit breaker!

WARNING!

• This device may only be installed and repaired by a qualified technician. Inadequate repairs can lead to considerable hazards. Should your device need to be repaired, please contact customer services.
• Do not operate the device if it is visibly damaged.
• Do not open the refrigerant circuit under any circumstances. An exception to this is when the device has to be disconnected for return shipping (chapter “Installing the external temperature regulator” on page 22).
• Set up the device in a dry location where it is protected against splashing water.
• Do not place the device near naked flames or other heat sources (heaters, direct sunlight, gas ovens etc.).
• Make sure that the compressor is sufficiently ventilated.
• Electronic devices are not toys! Always keep and use the device out of the reach of children.
• People (including children) whose physical, sensory or mental capacities or whose lack of experience or knowledge prevent them from using this product safely should not use it without the supervision or instruction of a responsible person.
• Before you start up the device for the first time, check that the operatingvoltage matches the battery voltage (see type plate).
• If the connection cable is damaged, it must be replaced to prevent possible electrical hazards. Only replace a damaged connection cable with a connection cable of the same type and specifications.
• Do not store any explosive substances, such as spray cans with propellants in the device.

2.2 Operating the device safely
DANGER! Danger of fatal injuries!

• Do not touch exposed cables with your bare hands. This especially applies when operating the device from the AC mains.

NOTICE!

• Never use cleaners that contain sand, acids or solvents to clean the vaporiser.
• Protect the device against rain and moisture.
• Disconnect the cooling device and other consumer units from the battery before you connect the quick charging device.

NOTE

• Disconnect the device if you are not going to use it for a prolonged period.

2.3 Safety precautions when handling batteries
CAUTION! Danger of injury!

• Batteries contain aggressive and caustic acids. Avoid battery fluid coming into contact with your body. If your skin does come into contact with battery fluid, wash the part of your body in question thoroughly with water.
• If you connect the device to a battery, make sure that no food comes into contact with the battery acid.

Scope of delivery

Accessories

If you wish to operate the cooling unit from the 230 V AC mains, please use one of the following rectifiers.
Available as accessory (not included in scope of delivery):

CoolPower EPS100 rectifier
For devices with BD35F compressor (50/80/CS/CS series)| 9600000440
CoolPower MPS35 rectifier
For devices with BD35F compressor (50/80/CS/CS series)| 9600000445
CoolPower MPS50 rectifier
For devices with BD50F compressor (90 series)| 9600000441

Intended use

The cooling unit is suited for building your own refrigerator or cooler.
The cooler unit is suitable for cooling and freezing food. The device is also suitable for use on boats.

CAUTION! Health hazard!
Please check if the cooling capacity of the device is suitable for storing the food or medicine you wish to cool.

Technical description

The cooling units are suitable for use with 12 V or 24 V DC voltage and can therefore be used for camping or on boats. Furthermore, you can connect them to a 230 V mains supply via the rectifiers (see chapter “Accessories” on page 17).
When used on boats, the cooling unit can withstand a constant heeling of 30°.
The cooling unit must be used together with a vaporiser. In addition, you can use an accumulator with or without TEC control. The CS-NC15 comprises a cooling unit and a vaporiser.
Use the continuously variable thermostat on the vaporiser to set the desired temperature.
The accumulator and TEC program control ensure a high cooling capacity and improve the unit’s efficiency. The accumulator is charged when there is a sufficient supply of power (for example when powered by a mains adapter). In the event of accumulator usage or under-voltage, the coolant is drawn from the accumulator until it is empty. Thus, no power is taken from the battery during this time.
The TEC program control always ensures that

• Cold energy is stored if there is excess electrical energy (external supply of power by a generator).
• The coolant accumulator can be used at any time to ensure that the complete battery power is used for other consumers.
• Stored cold energy is automatically retrieved to preserve the interior cooling temperature of the cooling area, once the battery capacity is exhausted.

NOTE
Further information on the coolant accumulator can be found in chapter “Use coolant accumulator” on page 27.

6.1 Battery monitor
The cooling device is equipped with an electronic device to protect against reversing the polarity when connecting to a battery. To protect the battery, the cooling device switches off automatically if  the voltage is insufficient (see following table).

Devices without TEC control|
---|---
Connection voltage| Switch-off voltage| Restart voltage
12 V| 10.4 V| 11.7 V
24 V| 22.8 V| 24.2 V
Devices with TEC control| |
Connection voltage| Switch-off voltage| Restart voltage
12 V| 10.7 V| 13.0 V
24 V| 22.0 V| 26.0 V

Installing the cooling unit

WARNING!
The installation may only be performed by a qualified technician.

7.1 Tools required
For installation and assembly, you will need the following tools:

• Drill
• Screwdriver
• Open-ended spanner: 16 mm, 19 mm and 21 mm
• Sealant and PUR foam
• Cable, cable lugs and cable clips
• Ester oil

7.2 Notes on the cooling container
Permitted cooling area contents
Make sure that maximum cooling area contents specified are not exceeded for the respective vaporiser type (see chapter “Technical data” on page 32).
Minimum insulation
The maximum cooling area contents are based on a minimum insulation thickness of 35 mm of foam polyurethane with a density of 40 kg/m³. If other insulating materials are used such as styrofoam, double the wall thickness to attain the same level of heat insulation.

Installing the vaporiser
The vaporiser must be installed in the cooling container (except CS-NC15, the vaporiser is premounted).
Observe the following in the process:

• Correct installation position (fig. 3, page 4 up to fig. 9, page 6)
• Arrangement in the cooling container as far to the top as possible
• Install a least 10 mm from the wall (not VD-14N and VD-15).

NOTICE!
For cooling units without valve couplings (ready-to install units): Do not open the refrigerant circuit during installation. You may have to make the wall openings larger to be able to slide the vaporiser through them (fig. a, page 6). Or alternatively, you create an opening that allows you to install the cooling lines at the top (fig. b, page 6).

Connecting the vaporiser
➤ Connect the vaporisers VD-14N and VD-15 in accordance with fig. 0, page 6.
➤ Connect vaporiser VD-16 according to fig. 9, page 6.
➤ Connect other vaporisers according to fig. j, page 9.

Keys for the illustrations

NOTICE!
Carefully insulate and seal off the wall openings after installation to prevent moisture penetration.

For cooling units with valve couplings
➤ Cut out a hole with a diameter of at least 30 mm (fig. c, page 7) for the cooling lines. To do this, use a circular cutter.

NOTICE!
Never bend the connecting line between the vaporiser and the unit. The minimum bending radius is 25 mm.

7.3 Installing the cooling unit
It is important to select the proper location for setting up the unit. To ensure troublefree operation, please note the following points:

• Set up the cooling unit in a dry, sheltered place. Avoid placing it near heat sources such as radiators, gas ovens or hot water pipes. Do not place in direct sunlight.
• On a boat, install the cooling unit, if possible, below the waterline.
• The refrigeration unit functions at a tilt angle of up to 30°. Install the unit on a flat base so that it will still operate, even at the strongest possible inclination.
• The heated air must dissipate unhindered (fig. 14, page 7).
• When installing the cooling unit in a closed room such as a wardrobe, pantry or aft compartment, openings must have a cross section of at least 200 cm² (25cmx8cm) for cooling and exhaust air.
• Make sure that the air flow on the condenser (fig. 14, page 7) is not restricted.
• Maintain a minimum distance between the condenser and adjoining wall of 50 mm.
• CS-NC15: Observe the drilling template (fig. 22, page 11) and the installation drawing (fig. 23, page 12).

7.4 Installing the external temperature regulator
Mechanical thermostat
The temperature regulator can be mounted either on the outside or inside of the cooling container. The interior temperature is regulated depending on the surface temperature of the vaporiser, or for VD-14N and VD-15, depending on the room temperature.

➤ Connect the coiled end of the sensor cable to the vaporiser (fig. 15, page 8, not VD-14N, VD-15) using the clamping plate. This is premounted on VD-14N, VD-15.
➤ Make sure that the sensor line does not make contact anywhere else with the vaporiser or with the suction line.

TEC control
The TEC control must be attached outside of the cooling container. The internal temperature is regulated according to the vaporiser surface temperature.
The temperature sensor has been factory-mounted to the accumulator.
➤ Connect the temperature sensor with the TEC control via the plug-in coupling.

Mount the one-way couplings (not CS-NC15)
NOTICE!
Coolant leakage will lead to system failure. In such cases, the complete cooling unit must be disassembled, returned, the one-way couplings replaced and the device refilled at the factory.

The cooling unit is delivered in a disconnected state (the vaporiser and compressor are separated); however, it has been filled at the factory with the proper amount of coolant.
➤ Install the machine part and the vaporiser.
➤ Remove the screwed-on caps from the coupling halves that protect the rubber seal from dirt.
The fig. 16, page 8, shows the condition of the coupling halves after removing the caps when uncoupled.

NOTICE! Risk of coolant leakage
Always use two open-ended spanners to prevent the couplings from turning in the coupling holder.

➤ Apply some ester oil on the O-ring and thread of both coupling halves (fig. 16, page 8).
➤ Place the coupling halves by hand on top without tension and tighten them by hand (fig. 17, page 8).
➤ Tighten the union nuts SW21 to the end of the thread: use the width 21 openended spanner for tightening and the second open-ended spanner (width 19 or 16) for counter-tightening.
The gap between the coupling halves will be 2–3 mm (fig. 18, page 8).

NOTICE! Risk of coolant leakage
The coupling is not permanently sealed.
➤ Tighten the union nuts to a torque of 30 Nm by approx. a further 90°, to connect both couplings firmly with each other.
The cutting ring of the male coupling half must cut itself into the female coupling half.

If the device must be decoupled for return shipping:
WARNING!
The coolant in the system is under pressure.
Wear safety goggles and gloves when disconnecting.

➤ Screw the caps back onto the coupling halves to prevent dirt and moisture from entering the refrigerant circuit.

7.5 Connecting the cooling unit
Connecting to a battery
The cooling unit can be operated from a 12 V or a 24 V DC voltage supply.

NOTICE!
To avoid voltage loss and therefore a drop in performance, the cable should be kept as short as possible and should not be interrupted.
For this reason avoid additional switches, plugs or power strips.

➤ Determine the required cross section of the cable in relation to the cable length according to fig. 19, page 9.
Key for fig.19, page 9

NOTICE!
Make sure that the polarity is correct.

➤ Before you start up the unit for the first time, check that the operating voltage matches the battery voltage (see type plate).
➤ Connect your cooling unit
– as directly as possible to the pole of the battery or
– to a plug socket which is fuse protected with at least 15 A (at 12 V) or 7.5 A (at 24 V).

NOTICE!
Disconnect the cooling device and other power consuming devices from the battery before you connect the battery to a quick charging device. Overvoltage can damage the electronics of the device.

For safety reasons the cooling unit is equipped with an electronic system to prevent polarity reversal. This protects the cooling unit when it is connected to a battery.

Connecting to a 230 V mains supply
WARNING!

• Never handle plugs and switches with wet hands or if you are standing on a wet surface.
• If you are operating your cooling device on board a boat with a mains connection of 230 V from the land, you must install a residual current circuit breaker between the 230 V mains supply and the cooling device.
  Seek advice from a trained technician.

➤ To operate the cooling unit from the 230 V mains, use the rectifier
– CoolPower EPS100 for devices with BD35F compressor (50/80/CS/CS series),
– CoolPower MPS35 for devices with BD35F compressor (50/80/CS/CS series),
– CoolPower MPS50 for devices with BD50F compressor (90 series).

NOTE
The output voltage of the described rectifier is 24 V. Please remember this when connecting other consumers at a later time.

Using the cooling unit

8.1 Energy saving tips

• Choose a well ventilated installation location which is protected from direct sunlight.
• Allow hot food to cool down first before placing it in the device.
• Do not open the refrigerated container more often than necessary.
• Do not leave the door open for longer than necessary.
• Defrost the refrigerated container once a layer of ice forms.
• Avoid unnecessary low temperatures.
• Clean the condenser of dust and dirt at regular intervals.
• Clean the lid seal regularly.

8.2 Start the cooling unit
Devices without TEC control
➤ Switch in the cooling unit by turning the control button clockwise (fig. 1 A1 or B1, page 3).

If you turn the control button further, you can regulate the temperature. Devices with energy storage function offer a storage activation button (fig. 1 A2, page 3).

NOTE
If the red LED flashed or glows, a fault has occurred and the system cannot be operated (see error table in Chapter chapter “LED on the thermal element (fig. 1 2, page 3)” on page 29).

Devices with TEC control
Devices with TEC control are started by actuating the main switch (fig. 2 6, page 3). You can then regulate the temperature (fig. 2 5, page 3) with the temperature selector.

8.3 Shutting down the cooling unit
If you do not intend to use the cooling device for a prolonged period, proceed as follows:
➤ Devices without TEC control: Turn the control to 0.
➤ Devices with TEC control: Switch off the device with the main switch (fig. 2 6, page 3).
➤ Disconnect the power cable from the battery or pull the DC cable plug out of the rectifier.
➤ Clean the cooling device.
➤ Leave the door slightly open over the cover.
This prevents odour build-up.

Use coolant accumulator

9.1 Display and control elements of devices with TEC program control

higher than 13.5 V or 27.0 V).
The LED flashes if the external power supply is too low (voltage ≤ 10.7 V or 21.7 V. Version E: ≤ 10.7 V or 22.0 V).
3| Red LED: indicates that the accumulator is being discharged because
• the discharge button has been pressed
• Low voltage shutdown (voltage ≤ 10.7 V or 21.4 V. Version E: ≤ 10.7 V or 22.0 V).
4| Accumulator discharge button: interrupts compressor operation until
• the stored cold energy is exhausted
• The external supply voltage level is restored after low voltage.
5| Temperature selector: allows the temperature in the cooling area to be set as required
Min. (left limit) = warmest setting
Max. (right limit) = coldest setting
6| Main switch: for switching the cooling device on and off.
Position 0 = OFF
Position – = ON

9.2 Accumulator function
The accumulator function ensures that cold energy is stored automatically (up to 8 hours) if enough electrical power is available, for example when supplied by a mains adapter.

Stored cooling power is discharged

• automatically when the switch-off voltage is reached (see the table on page 18)
• or manually by pressing the discharge button (fig. 1 A2 or fig. 2 4, page 3).

NOTE
The cold accumulator can only be discharged manually if it was fully charged beforehand.

The accumulator is automatically charged if,

• the restart voltage is exceeded
• or the accumulator is empty and you switch the device off and on again using the control button(fig. 2 6, page 3, does only function on VD-06).

NOTICE!
When you are discharging the accumulator, although there is an external supply of power – for example to avoid operating noise from the compressor – use the main switch to switch the unit off (fig. 1 B1 or fig. 2 6, page 3).

NOTE
Please remember: Low internal temperature = high current consumption!

Guarantee

The statutory warranty period applies. If the product is defective, please contact the manufacturer’s branch in your country (see the back of the instruction manual for the addresses) or your retailer.
For repair and guarantee processing, please include the following documents when you send in the device:

• A copy of the receipt with purchasing date
• A reason for the claim or description of the fault

Disposal

➤ Place the packaging material in the appropriate recycling waste bins wherever possible.
If you wish to finally dispose of the product, ask your local recycling centre or specialist dealer for details about how to do this in accordance with the applicable disposal regulations.

Troubleshooting

LED on the thermal element (fig. 1 2, page 3)

section
2| Fan overvoltage shutdown| Check condenser and vaporiser fan current: total target value < 0.5 A
3| Compressor start-up fault| Reduce load on cooling system:
• Ensure good ventilation around the cooling unit
• Store pre-cooled goods
4| Compressor overload shutdown| Reduce load on cooling system:
• Ensure good ventilation around the cooling unit
• Store pre-cooled goods
5| Electronic fuse shutdown| Reduce load on cooling system:
• Ensure good ventilation around the cooling unit

Compressor does not run

Start attempt with
UT ≤ U OFF| Loose cables Poor contact (corrosion)| Establish a connection
Battery capacity too low| Replace the battery
Cable cross section too low| Replace the cable (fig.19, page 9)
Start attempt with
UT ≥ U ON| Ambient temperature too high| –
Insufficient ventilation and/or cooling| Provide improved ventila- tion for the cooling unit
Condenser is dirty| Clean the condenser
Fan defective (if installed)| Replace the fan

UT Voltage between the positive and negative electronic terminals
UON Switch-on voltage of the electronics
UOFF Switch-off voltage of the electronics

Interior temperature too low in control setting 1

Compressor runs
constantly| Thermostat sensor has no contact on the vaporiser| Secure the sensor
Thermostat defective| Change the thermostat
Compressor runs for a long time| Large quantities have been frozen in the freezer compartment| –

Cooling capacity drops, interior temperature rises

Compressor runs for a long
time/continuously| Vaporiser is iced over| Defrost the vaporiser
Ambient temperature too high| –
Insufficient ventilation and/or cooling| Provide improved ventilation for the cooling unit
Condenser is dirty| Clean the condenser
Fan defective (if installed)| Replace the fan
Compressor runs infrequently| Battery capacity exhausted| Charge the battery

Unusual noises

obstruction
Foreign body jammed between the cooling device and the wall| Remove the foreign body
Fan noise (if installed)| Clean the fan blades

Technical data

| 50| 54| 55
---|---|---|---
Max. cooling area contents:| 80 litres| 130 litres
Connection voltage:| 12 V or 24 V
Power consumption:| 35 – 40 W, depending on the vaporiser type
Coolant quantity:| 28 g| 35 g
CO2 equivalent:| 0.040 t| 0.050 t
Global warming potential (GWP):| 1430
Dimensions (W xH x D) in mm:| 315 x 140 x 170| 386x155x130| 220x160x220
Weight:| 3.74 kg| 6.0 kg| 6.5 kg
| 84| 85| 86|
Max. cooling area contents:| 250 litres
Connection voltage:| 12 V or 24 V
Coolant quantity:| 45 g
CO2 equivalent:| 0.064 t
Global warming potential (GWP):| 1430
Dimensions (W xH x D) in mm:| 386x155x130| 220x155x220| 220x230x177
Weight:| 6.0 kg| 6.0 kg| 6.5 kg
| 94| 95| 96
---|---|---|---
Max. cooling area contents:| 400 litres
Connection voltage:| 12 V or 24 V
Coolant quantity:| 60 g
CO2 equivalent:| 0.086 t
Global warming potential (GWP):| 1430
Dimensions (W xH x D) in mm:| 386x155x130| 220x155x220| 220x230x177
Weight:| 6.0 kg| 6.0 kg| 6.5 kg
| CS-NC15|
Max. cooling area contents:| 250 litres
Connection voltage:| 12 V or 24 V
Coolant quantity:| 60 g
CO2 equivalent:| 0.086 t
Global warming potential (GWP):| 1430
Dimensions (W xH x D) in mm:| 360x255x275
Weight:| 8.5 kg
| VD-01| VD-02| VD-03| VD-04
---|---|---|---|---
Max. cooling area content at 35 mm PU insulation:| 80 litres| 30 litres| 170 litres| 130 litres
Max. cooling area content at 50 mm PU insulation:| 100 litres| 50 litres| 200 litres| 170 litres
Power consumption:| 35 W| 35 W| 50 W| 45 W
Voltage| 12 V or 24 V
Coolant quantity:| 17 g| 20 g| 30 g
CO2 equivalent:| 0.024 t| 0.029 t| 0.043 t
Global warming potential (GWP):| 1430
Dimensions (W xH x D) in mm:| 300x245x110| 275x215x25| 380x230x82| 375x255x100
Weight:| 1.5 kg| 1.0 kg| 2.0 kg| 1.5 kg
| CU-50 +| CU-50 +| CU-50 +|
VD-01| VD-02| VD-07
Max. cooling area| 50 litres| 30 litres| 60 litres
content at 35 mm PU| | |
insulation:| | |
Max. cooling area| 75 litres| 50 litres| 80 litres
content at 50 mm PU| | |
insulation:| | |
Power consumption:| 30 W
Temperature:| ambient: 32 °C, internal: 5 °C
| VD-05| VD-07| VD-08| VD-09
---|---|---|---|---
Max. cooling area content at 35 mm PU insulation:| 130 litres| 100 litres| 160 litres| 160 litres
Max. cooling area content at 50 mm PU insulation:| 170 litres| 130 litres| 180 litres| 180 litres
Power consumption:| 45 W| 35 W| 60 W| 60 W
Voltage| 12 V or 24 V
Coolant quantity:| 30 g| 45 g| 15 g| 65 g
CO2 equivalent:| 0.043 t| 0.064 t| 0.021 t| 0.093 t
Global warming potential (GWP):| 1430
Dimensions (W xH x D) in mm:| 375x350x25| 255x210x90| 450x270x340| 365x140x270
Weight:| 1.5 kg| 1.5 kg| 2.0 kg| 2.0 kg
| VD-14N| VD-15| VD-18|
Max. cooling area content at 35 mm PU insulation:| 300 litres| 200 litres| 100 litres
Max. cooling area content at 50 mm PU insulation:| 400 litres| 250 litres| 150 litres
Power consumption:| 80 W| 60 W| 45 W
Voltage| 12 V or 24 V
Coolant quantity:| 15 g
CO2 equivalent:| 0.021 t
Global warming potential (GWP):| 1430
Dimensions (W xH x D) in mm:| 220x275x65| 220x275x65| 350x250x25
Weight:| 2.5 kg| 1.5 kg| 1.5 kg
| VD-16| VD-21
---|---|---
Max. cooling area content at 60 mm PU insulation:| 130 litres| 250 litres
Max. cooling area content at 100 mm PU insulation:| 200 litres| 300 litres
Power consumption:| 60 W| 60 W
Voltage| 12 V or 24 V
Coolant quantity:| 40 g| 10 g
CO2 equivalent:| 0.057 t| 0.014 t
Global warming potential (GWP):| 1430
Dimensions (W xH x D) in mm:| 330x260x130| 1370x305x10
Weight:| 2.5 kg| 4.0 kg
| VD-16 for series 80| VD-16 for series 90
Max. cooling area content at 35 mm PU insulation:| 120 litres| 200 litres
Max. cooling area content at 50 mm PU insulation:| 200 litres| 250 litres
Power consumption:| 65 W| 80 W
Voltage| 12 V or 24 V
Coolant quantity:| 40 g
CO2 equivalent:| 0.057 t
Global warming potential (GWP):| 1430
Dimensions (W xH x D) in mm:| 380x300x62
Weight:| 5.0 kg

Test/certificates:
**** The coolant circuit contains R-134a.
Contains fluorinated greenhouse gases

GERMANY
Dometic WAECO International GmbH
Hollefeldstraße 63 · D-48282 Emsdetten
+49 (0) 2572 879-0 · +49 (0) 2572 879-300
Mail: info@dometic-waeco.de

AUSTRALIA
Dometic Australia Pty. Ltd.
1 John Duncan Court
Varsity Lakes QLD 4227
‘ 1800 212121
+61 7 55076001
Mail: sales@dometic.com.au| HONG KONG
Dometic Group Asia Pacific
Suites 2207-11 · 22/F · Tower 1
The Gateway · 25 Canton Road,
Tsim Sha Tsui · Kowloon
+852 2 4611386
+852 2 4665553
Mail: info@waeco.com.hk| UNITED KINGDOM
Dometic UK Ltd.
Dometic House, The Brewery
Blandford St. Mary
Dorset DT11 9LS
+44 344 626 0133
+44 344 626 0143
Mail: customerservices@dometic.co.uk| USA
Dometic RV Division
1120 North Main Street
Elkhart, IN 46515
****+1574-264-2131
---|---|---|---

4445100001 05/2018

References

• Ausrüstung für Klimaanlagen-Werkstätten | WAECO
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