
Isotherm Cold unit ASU 125 Liters per pump
The Isotherm ASU 125-liter pump-cooled chiller (Model: U100X035A17361AA) is designed for automatic or manual operation to optimize energy consumption. Compact and reliable, it provides efficient cooling with a BD35 compressor and a 2L eutectic plate evaporator . Suitable for air or water pump installations, it comes ready to use with all necessary piping included.
LIMITED-TIME SPECIAL OFFER
Promotion in progress
-5% off for purchases of €1100 or more*: SB737MVB
from €150 of purchases**

AVAILABLE PAYMENT METHODS
Ce produit sera expédié avec le transporteur
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Available everywhere in Europe
By message and telephone
Possible on request for quote
This is our priority
The Isotherm ASU 125-liter pump-driven refrigeration unit combines performance and advanced technology for optimized onboard cooling. It can operate in automatic mode (NORMAL.AUTO) to maintain the temperature while minimizing battery consumption, or in manual mode (MAN.TEMP) for customized temperature settings. Start-up and shutdown, as well as mode selection, are controlled by a three-way switch with indicator lights showing the system status.
Equipped with a BD35 compressor , the system offers stable and reliable cooling. Its 2L eutectic plate evaporator measures 300 x 210 x 60 millimeters, and the condensing unit 210 x 135 x 155 millimeters. The included piping length is 3 meters for the air and water pump units, and 1.5 meters for the through-hull compressor with 3 meters for the through-hull evaporator.
The maximum current draw is 4.8A at 12V , measured in a half-full cooler with adequate insulation. Reference temperatures are +4°C in the cooler and 22°C for ambient air or water, ensuring reliable and measurable performance.
Automatic Start-Up (ASU) systems are designed to optimize energy management for onboard refrigerators. Thanks to their intelligent technology, they use excess available energy to maintain cooling and reduce battery consumption. Compact and reliable, these systems ensure extended autonomy and optimal comfort, even during long voyages.
Easy to install, they integrate perfectly with ISOTHERM refrigeration equipment, ensuring quiet and efficient operation for onboard storage and refrigeration.
Aquanautique is an official and preferred partner of Isotherm.
- Dimensions
- Compressor dim (WxLxH): 210x135x155mm, Evaporator dim. (WxLxH): 355x280x60mm
- Weight
- 17kg
- Capacity
- 125 liters
- Production capacity
- From 100 L/H to 200 L/H
- Model
- Water condenser
- Information
- U100X035A17361AA
- Version
- Cooling group kit
- Brand
- Isotherm
- Product
- Cold groups
- Manufacturer code
- Isotherm U100X035A17361AA (215)

Shipping / Delivery
Our products are shipped within 24/48 hours, Monday to Friday (excluding public holidays), for items in stock. Delivery time varies depending on the weight of the package, the region, and the country of delivery, and ranges from 2 to 5 days depending on the shipping method you choose. Furthermore, our packages are insured against breakage, loss, or theft for orders over €300.





French Company
We are based in France, in the Pyrénées-Orientales department. Our customer service team speaks and writes in French, Spanish, and English. Customer satisfaction is our priority.
With over 35 years of experience in the world of boating, we put our skills and expertise at your service, to meet your needs and guide you.

Customer service at your service
Need a specific delivery date for this product? Technical information? Contact us by phone or online messaging Monday to Friday from 10:00 to 12:00 and from 14:00 to 17:00 in French at +33 (0) 4 22 91 22 20 .
You can also contact us via our online form outside of the above hours.
Availability
Here are the different statuses on the product page
New releases ONLY available on order : This item will be manufactured by the company upon receipt of an order. The lead time may be 30 to 90 days. This item is made to order and requires specific adaptations to meet technical requirements. Orders are non-cancellable.
Some items have varying delivery times. For information on a delivery date, you can contact us.
Shipping and collection of orders
Here are the methods and times of transport available during shipping (delivery time) on Aquanautique.com

Pick up ONLY from our premises in Perpignan. No shipping!

Next day delivery before 1 p.m. for France, 2 to 4 days for Europe and 3 to 5 days for the rest of the world

Home delivery against signature and delivery to the post office, Pickup relay & Pickup Station lockers in 24 to 48 hours and in France ONLY.

Delivery within 2 to 5 days to a relay point in France ONLY.

Large volume transport. Delivery 2 to 4 days in France and 2 to 7 days in Europe.

We deliver to the following countries
Andorra, Austria, Belgium, Bulgaria, Canada, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, French Guiana, Germany, Greece, Guadeloupe, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Martinique, Mauritius, Mayotte, Monaco, Montenegro, Netherlands, New Caledonia, Norway, Poland, Portugal, Romania, Saint Barthélemy, Saint Martin, Saint Pierre and Miquelon, Slovakia, Slovenia, Spain, Sweden, Switzerland, Vatican City State, United Kingdom, United States, Wallis and Futuna
The brand names Isotherm and Isotemp are known worldwide and are among our core assets
Indel Webasto Marine, located in Sant'Agata Feltria in Italy, is the result of the joint venture between Indel B, the Italian leader in refrigerators, and Webasto, the leading automotive supplier, based in Germany.
These two companies combine forces to provide high quality solutions for galley equipment for marine applications. The wide range of products consists of refrigerators and freezers, travel and built-in coolers, ice makers, wine cellars, water heaters, chests as well as personalized solutions for greater comfort on board. Indel Webasto Marine's refrigeration and freezing solutions and ice makers are renowned for their ease of use, stylish design and energy saving system.
Marine refrigerators operate in harsh conditions: they must withstand violent movements, must operate quietly, be completely reliable and, perhaps most importantly, consume the bare minimum of battery power. Isotherm Cruise refrigerators are the result of careful research that combines technological innovation with sophisticated yet practical design. Our mission is to design and manufacture high quality, low energy consumption maritime refrigeration systems, exclusively for sailing yachts and cruise ships.
Indel Webasto Marine is able to provide solutions at very competitive prices, thanks to very high production volumes generated on the Indel B production line. Indel B is one of the leading manufacturers of refrigerator solutions for the sector trucks, certified in accordance with ISO 9001:2015-ISO 14001:2015 - IATF 16949:2016 standards.
