Webasto RV Catalog 2025-26 EN

Rooftop air-conditioning systems Cool Top Trail 20G / 24G / 28G

NEW Cool Top Trail 20G / 24G / 28G

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Scopes of delivery

An ideal climate with rooftop air-conditioning The smallest models of the Cool Top Trail family are suitable for use in parked motorhomes and caravans of up to 8 m length. With their generously sized heat exchangers they have a high efficiency and high performance. Their reliability and high cooling capacity has already been proven in very hot Australian summers with up to 50 °C outside temperatures. The units come with heat pump function as a standard which is also very powerful, working in cold outside temperatures of as low as -5 °C. Very low noise levels allow you to rest and relax inside the vehicle and do not disturb your neighbors in the RV campsite. The use of high-quality components ensures a long lifetime with a minimum expenditure on maintenance. Made from UV stabilized polypropylene, the housing of the units is robust but still lightweight. The units can be operated with an easy to handle remote control which allows the user to access all air conditioner functions from the comfort of the dining area, seat or bed. Besides cooling and heating the units include various extra features such as dehumidification, timer and sleep function. Cool Top Trail air conditioners are delivered with a mounting frame for roof openings of 400 x 400 mm. For the use in smaller cut-outs of 360 x 360 mm an alternative adaptor frame is available as accessory.

Order number Cool Top Trail 20G Outdoor Unit Cool Top Trail 24G Outdoor Unit CTT20-24-20G-24G Indoor Unit 400x400 CTT20-24-20G-24G Indoor Unit CI Bus Cool Top Trail 28G Outdoor Unit CTT28-34-28G-34G Indoor Unit 400x400 CTT28-34-28G-34G Indoor Unit CI Bus

The advantages of the Cool Top Trail 20G/24G/28G:  Powerful units with high cooling and heating capacity  Now with environmental friendly refrigerant gas R32 with very low GWP value of only 675  The weight of the Cool Top Trail 20G and 24G has been reduced by 0,5kg  Robust, lightweight and low noise  Wide operating range from -5 to 50°C  Low profile and compact design  Easy installation

HGN47480031 HGN47280031

HGN47290004

HGN47290008 HGN74880031

HGN47090009

Cool Top Trail Indoor Unit Indoor unit

HGN47090015 CTT20G Outdoor Unit is successor of CTT20 (HGN47480001) CTT24G Outdoor Unit is successor of CTT24 (HGN47280003) CTT28G Outdoor Unit is successor of CTT28 (HGN74880001)

Adaptor frame 400 x 400 mm Remote control and holder Template for indoor unit Mounting kit

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Accessories (optional) For the installation of the air conditioner when rooftop cut-out is 36 x 36 cm. Adaptor frame 36 x 36 cm

Cool Top Trail Outdoor Unit Outdoor unit

HGN36100007

Installation instructions Template for outdoor unit

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Electrical power supply For the connection to the vehicle’s 230 V system the installer will have to provide a circuit breaker and possibly a residual current device as well as a power supply cable.

Control element Comfortable adjustment via remote control

Technical specifications

Cool Top Trail 20G

Cool Top Trail 24G

Cool Top Trail 28G

2,000 2,000

2,400 2,400

2,800 2,600

Cooling capacity (W) Heating capacity (W)

230~ / 50

230~ / 50

230~ / 50

Rated voltage / frequency (V) / (Hz) Rated current (cooling mode) Rated current (heating mode) Operating temperature range (°C) Current draw start max. peak (A) Current draw RMS40* (A) Current draw RMS300** (A)

3.0 2.6

4.2 3.8

5.0 4.8

-5 to 50

-5 to 50

-5 to 50

20.6 13.8

26.9 17.7 10.5

23.2 17.5

9.7

9.1

25 to 85

25 to 85

25 to 70

Roof thickness (mm) Roof cut-out (mm)

400 x 400 (360 x 360 with optional adaptor frame)

400 x 400 (360 x 360 with optional adaptor frame)

400 x 400 (360 x 360 with optional adaptor frame)

1,002 x 566 x 215 557 x 536 x 43

1,002 x 566 x 215 557 x 536 x 43

855 x 657 x 215 575 x 556 x 49

Dimensions outdoor unit (mm) Dimensions indoor unit (mm)

30,3

31,3

36

Weight total (kg)

* Starting amperage RMS (Root Mean Square) for first 40 ms ** Starting amperage RMS (Root Mean Square) for first 300 ms

Cool Top Trail 28G

Cool Top Trail 20G / 24G

86

87

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