Double heat exchanger Ordering information Double heat exchanger pre-set version 3.80.1017-2V Double heat exchanger external speed version 3.80.1017-2E Optional Temperature control module 3.20.891 Cooler and heater The double heat exchanger is designed to control the temperature in a deck decompression chamber, self-propelled hyperbaric lifeboat or tunnelling transfet shuttle . This combi unit consists of a heat and cool exchanger. The heat exchanger gives the possibility to control the chamber atmosphere with a preset temperature via a thermostat controller. The unit is completely casted. Environmental conditions such as oxygen level, humidity or pressure will not affect the motor at all. The motor is very dependable because of its brushless design. To control the double heat exchanger it requires an optional fan speed control unit with temperature control. Performance The heat exchanger designed to run continuously during diving operations. The performance of theunit may vary because of a range of environmental factors, such as: • Chamber pressure • Temperature • Motor Speed

Specifications Dimensions in mm. (inch) Lenght Width Height Weight in kg (lbs.) Complete unit Power supply Rotating speed Water Cold/Hot Water flow Cold Water Temperature Hot Water temperature Pressure difference Pressure difference in system Parameter Cooling in air at 1.3 bar (a) and cold water supply of 12 l/min at 4°C and an internal temperature of 25°C Heat transfer > 1.4 kWh (fan speed high) Parameter Cooling in Trimix (50 % He) at 6 bar (a) and cold water supply of 12 l/min at 4°C and an internal temperature of 28°C Heat transfer > 3.5 kWh (fan speed high) Parameter Cooling in Heliox (90...