The GSWT® system is a highly efficient heat and cold recovery system in a closed-loop system for all air-conditioning and ventilation systems.

In the standard configuration (GSWT®-S systems), these systems can be combined with natural cooling systems such as indirect adiabatic evaporative cooling (IAVK) or free cooling (FK).

• System exchange efficiencies Φ 68 - 73%.
• A water glycol circuit transfers heat or cold from the exhaust air to the outside air
• germ and pollutant transfer free
• Preheating for active frost protection (tZU = 12..16°C) (no control of supply air temperature)
• if necessary combined with CFC-free natural cooling systems
• Cold recovery, reduces aftercooling capacity by 2.4 - 3.9 kW/1,000 m3/h at high outdoor temperatures
• Free cooling, generates cold without chiller for internal cooling purposes.
  Example:
  Outside air 10 °C, chilled water 19/16 °C, cooling capacity 2.1 kW/1,000 m3/h
  Coefficient of performance of cooling: 15....> 100!
• Efficiency gradients greater than 1:15 - 1:50.

Range of application:
Heat and cold recovery for all air-conditioning and air-conditioning systems, for simple application or for decentralized air treatment.

Translated with www.DeepL.com/Translator (free version)

The GSWT® system is a highly efficient heat and cold recovery system in a closed-loop system for all air-conditioning and ventilation systems.

With additional equipment, the GSWT®-M system enables multifunctional use of the closed-loop system. For multifunctional use, double pump and Simatic S7 control with extended operating safety routines are mandatory.

• System exchange rates Φ 73 - 80%.
• The classic multifunctional GSWT® system allows heat and cold recovery with integrated reheating, integrated aftercooling and indirect adiabatic evaporative cooling.
• With the functions free cooling, efficient solar heat recovery and waste heat recovery (< 30 °C) the efficiency is further increased.
• A total of 21 functions are available
• Efficiency gradients greater than 1:17 - 1:100.

Range of application:
All ventilation and air-conditioning systems with high requirements for hygiene, operational reliability and efficiency and for substituting heating, cooling and recooling capacity.

The high degrees of exchange make it possible to use cooling and heating sources that were previously unknown as such:

20 °C in summer for cooling
25 °C in winter for heating

In the cooling case, free cooling can be used particularly efficiently, e.g. in GSWT® closed-circuit systems - or the chiller used for this purpose operates with high coefficients of performance of > 7 (e.g. at 16 / 24 °C).

In the case of heating, the last calorie of heat can be used - or a heat pump operates with coefficients of performance of 6, 7 or even 8 - or low-temperature waste heat < 25°C can be used.

In any case, GSWT® room air conditioners lead to a significant increase in efficiency of peripheral systems as well as the entire TGA.

The use for data centers leads to lowest air volumes and maximum electricity savings.

In combination with the GSWT® recooling units, 70 % to 100 % of free cooling can be generated!

Versions

• Air flow rates standard 500 - 9,000 m³/h, more on request
• Units vertical (displacement ventilation)
• Horizontal units with duct connection
• Units as ceiling units
• Heat exchanger with temperature exchange ratio, optionally 60 - 90%
• optionally with heating/cooling switchover
• optionally with fresh air connection
• with / without control
• cooling with 20 °C, heating with 25 °C

The GSWT® system is a highly efficient heat and cold recovery system in a closed-loop system for all air-conditioning and ventilation systems.

The entry into the GSWT® technology succeeds with the B-system. The advantages of the GSWT® technology can be used for small volume flow or low degree of exchange. Simple hydraulics and simple control, but with commissioning on demand.

• System exchange degrees Φ > 68 % - 70 %.
• A water glycol circuit transfers heat or cold from the exhaust air to the outside air
• germ and pollutant transfer free
• Cold recovery, reduces aftercooler capacity by 1....2.3 kW / 1,000 m3/h at high outdoor temperatures
• Efficiency gradients greater than 25 - 28

Range of application:
Heat and cold recovery in small ventilation systems, lower running time, simple requirements, alternative to rotor / plate heat recovery.

The GSWT® system is a highly efficient heat and cold recovery system in a closed-loop system for all air-conditioning and ventilation systems.

In the standard configuration (GSWT®-S systems), these systems can be combined with natural cooling systems such as indirect adiabatic evaporative cooling (IAVK) or free cooling (FK).

• System exchange efficiencies Φ 68 - 73%.
• A water glycol circuit transfers heat or cold from the exhaust air to the outside air
• germ and pollutant transfer free
• Preheating for active frost protection (tZU = 12..16°C) (no control of supply air temperature)
• if necessary combined with CFC-free natural cooling systems
• Cold recovery, reduces aftercooling capacity by 2.4 - 3.9 kW/1,000 m3/h at high outdoor temperatures
• Free cooling, generates cold without chiller for internal cooling purposes.
  Example:
  Outside air 10 °C, chilled water 19/16 °C, cooling capacity 2.1 kW/1,000 m3/h
  Coefficient of performance of cooling: 15....> 100!
• Efficiency gradients greater than 1:15 - 1:50.

Range of application:
Heat and cold recovery for all air-conditioning and air-conditioning systems, for simple application or for decentralized air treatment.

Translated with www.DeepL.com/Translator (free version)

The GSWT® system is a highly efficient heat and cold recovery system in a closed-loop system for all air-conditioning and ventilation systems.

With additional equipment, the GSWT®-M system enables multifunctional use of the closed-loop system. For multifunctional use, double pump and Simatic S7 control with extended operating safety routines are mandatory.

• System exchange rates Φ 73 - 80%.
• The classic multifunctional GSWT® system allows heat and cold recovery with integrated reheating, integrated aftercooling and indirect adiabatic evaporative cooling.
• With the functions free cooling, efficient solar heat recovery and waste heat recovery (< 30 °C) the efficiency is further increased.
• A total of 21 functions are available
• Efficiency gradients greater than 1:17 - 1:100.

Range of application:
All ventilation and air-conditioning systems with high requirements for hygiene, operational reliability and efficiency and for substituting heating, cooling and recooling capacity.

The high degrees of exchange make it possible to use cooling and heating sources that were previously unknown as such:

20 °C in summer for cooling
25 °C in winter for heating

In the cooling case, free cooling can be used particularly efficiently, e.g. in GSWT® closed-circuit systems - or the chiller used for this purpose operates with high coefficients of performance of > 7 (e.g. at 16 / 24 °C).

In the case of heating, the last calorie of heat can be used - or a heat pump operates with coefficients of performance of 6, 7 or even 8 - or low-temperature waste heat < 25°C can be used.

In any case, GSWT® room air conditioners lead to a significant increase in efficiency of peripheral systems as well as the entire TGA.

The use for data centers leads to lowest air volumes and maximum electricity savings.

In combination with the GSWT® recooling units, 70 % to 100 % of free cooling can be generated!

Versions

• Air flow rates standard 500 - 9,000 m³/h, more on request
• Units vertical (displacement ventilation)
• Horizontal units with duct connection
• Units as ceiling units
• Heat exchanger with temperature exchange ratio, optionally 60 - 90%
• optionally with heating/cooling switchover
• optionally with fresh air connection
• with / without control
• cooling with 20 °C, heating with 25 °C