No need to vent raditors
Lowers operating costs
Increases energy efficiency in heating and cooling systems
TTM NoXygen® C625
Removes harmful gases in hydronic systemEnergy losses, corrosion and noise issues are mainly caused by too high gas content in the system fluid. TTM NoXygen® vacuum degassers remove both free and bound gases with a high vacuum down to 0.9 bar. The high vacuum causes water to boil, allowing air to leave the system fluid. Adapted for apartment buildings and smaller systems:
- Systems up to 25 m3 or about 200 apartments
- Max system pressure 2.5 bar or about 6 floors height building.
- Easy to install, commission and control
- Can be installed in both small and large systems
- Rapid degassing function
- Reduces operating costs
- Prevents corrosion of system components
- No need to vent radiators
- Increases the energy efficiency of heating and cooling systems
- Minimises noise problems in heating and cooling systems
- Enables stable and easy adjustment
- Removes gases from the system fluid
- Prevents degradation of refrigerant liquids
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TTM NoXygen® removes trapped and free gases in heating, heat recovery or cooling systems by lowering the system pressure down to -0.9 bar. Bound gases in the system fluid are released at high pressure and form free gas bubbles, which can then be vented away. Degassing takes place independently of the existing system pressure or media temperature.
When TTM NoXygen® is installed for the first time, the device starts automatically in quick degassing mode. This means that the TTM NoXygen® quickly lowers the gas content in the system and then, once the gases have been removed, switches to maintenance degassing.
The vacuum degasser is designed for permanent installation to keep the system free of free and bound gases in the long term. When the process is completed, the gas content in the system will gradually increase, as no liquid system is completely diffusion proof. If the system ever needs to be drained of system fluid, the new gas is degassed efficiently through the unit’s quick degassing mode.
It takes about 2 weeks to degas 5 m3 of system fluid if the system is previously vented and in good condition. Glycol systems take up to 4 times as long than to degas water. TTM NoXygen® is suitable for system volumes from 0.5 – 25 m3. When the system volume exceeds 25 m3 or where faster degassing is desired, the TTM NoXygen® can be series connected in the return flow of the manifold.
The purpose of fluid treatment by vacuum degassing is to reduce the gas content to a level where corrosion stops and the system fluid regains its optimum energy-carrying properties.
|Min – Max. system pressure in |
|+0,8 – +2,5 bar|
|Media temperature||0 – +60°C|
|Ambient temperature||0 – +40°C|
|Capacity, degassed liquid||Min. 100 l/h|
|Vacuum capacity during degassing||Down to -0,9|
|Pressure class||PN 10|
|Permitted fluids||Water and deionised water –|
Propylene/ethylene glycol max. 10 vol%
Ethanol1 less than 30 vol%
|Electrical data / Voltage||1~230 V, 50 Hz, Plug|
|Outer fuse||10 A|
|Rated power||0,5 kW|
|Rated current||3 A|
|Energy consumption||25 kWh/year 2|
|Connection to DUC||Potential free contactor|
|Max current load||24 V, 1,0 A|
|Noise level||58 dB|
1) When degassing ethanol, ensure the premises are well ventilated.
2) Operation with 30 days of quick degassing results in an energy consumption of 80 kWh the first year.
TTM NoXygen® may be installed in
disturbance sensitiveenvironments such as
hospitals, offices and industries.
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