Isotherm Compact Magnum Water Pump Cooled Marine Refrigeration – DIY Build In Kit (U200X065A17461AA)
Eutectic Holding Tank – Suits Fridge to 200L or Freezer to 65L
Efficient, Reliable BD50F Danfoss Compressor
Dimensions holding plate H x W x D (mm): 330 x 160 x 175
*NEW Intelligent Temperature Control System ITC

Water-cooled Magnum Cooling Units with Intelligent Temperature Control +
The ITC Digital Display in conjunction with a Holding Plate forms a cooling unit called ITC+, where the storing energy effect is amplified thanks to the wide range of eutectic plates available. The intelligent energy management system charges the holding plate when batteries are at high charge level (engine running or on-grid) and restitutes progressively the cold energy to reduce drain on batteries when used as single source of energy.
Isotherm Magnum – Seawater cooled electric pump
Isotherm Magnum units are especially designed for vessels with exceptionally high refrigeration requirements, for example vessels sailing in tropical waters. Isotherm Magnum uses the surrounding water to increase cooling efficiency. All Magnum models are fitted with integral seawater pumps for circulating the cooling water through the cooling section of the refrigerator compressor. The pump is quiet, self-priming, withstands dry running and is self-aerating. The highly efficient heat exchanger is manufactured in a corrosion-resistant copper-nickel alloy and fitted with a zinc anode. Sea water-cooled units are extremely efficient and offer increased cooling capacity.
The Isotherm Intelligent Temperature Control can be used with new SeCOP DC only and AC/DC modules to reduce battery consumption, control the speed of the compressor, and digitally set and monitor fridge or freezer temperatures. The external digital control give the user full control over fridge functions like ECO (economy) Mode or Overcooling Mode
For boaters who want to minimize battery consumption and maximize cooling performance, the new Isotherm Intelligent Temperature Control (ITC) takes advantage of new developments in DC and AC/DC control modules from SeCOP (Danfoss) to reduce energy consumption. The ITC kit consists of a display module with easy to adjust controls which allows the user to set operating parameters for temperature and compressor speed.
The Isotherm Intelligent Temperature Control display panel provides an instant reading of actual temperatures inside the fridge or freezer. Temperatures can be changed with a simple press of the up or down keys in either Celsius or Fahrenheit. Fault display and 3 battery protection levels provide additional user control. Manual activation of the ECO function assures minimum power consumption in this energy-saving mode which runs the compressor at the slowest speed.
The ITC provides standard smart features such as:
- Soft Start which allows for effective, safe start-up of the compressor
- Fast Cooling is achieved by running the compressor at maximum speed to lower temperatures as quickly as possible
- Over Cooling is activated by microprocessor to accumulate cold when there is a surplus of energy such as when the battery is in charge mode (engine running, solar panels charging) or when on AC for AC/DC modules
The ITC Digital Display controls the temperature in a refrigerator or freezer compartment from the exterior of a fridge/freezer cabinet. The display can be mounted flush or proud mount (see download below for details). Settings on the display panel include temperature setting, selection of energy saving options, choice of 3 battery protection levels, and compressor operating mode settings (ITC, ECO, and Overcooling modes).
The ITC works with both DC only modules and AC/DC modules, specifically the the new generation SeCOP control modules 101N0212 (DC only) and 101N510 (AC/DC) for BD35F / BD50F compressors. All new Isotherm fridges come equipped with the new generation SeCOP modules.
Indel Webasto Marine takes years of expertise in energy-saving innovation that began with ASU, then ISEC, and now the Intelligent Temperature Control to make a simple-to-install kit that will revolutionize energy savings for the boating industry.
Following is the part number and description:
SED00036DA – Isotherm ITC Digital Display Kit – Intelligent Temperature Control
Features:
- Eutectic Holding Plate
- Fridge versions or freezer versions available
- 12 / 24 V Secop compressor
- Universal kit AC / DC optional for a complete power supply compatibility (12 / 24 V, 230 / 115 V and 50 / 60 Hz)
- Self-priming sea water pump to ensure extra high efficiency for tropical applications
- Variable speed water pump according to the temperature of the water circulating inside the condenser
We recommend to reduce the box volume by 10-20 %, in tropical conditions. Specification changes may be made without prior notice.

Typical Boat Combined Fridge /Freezer Box (Not supplied)




