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string(592) "The challenge was to take over an existing HVAC system that had never worked properly, serving a screened room with very specific requirements and limitations, eliminate the control system and install a new control panel that would manage the motorised valves, mixing valves, the three heat pumps, the two supply and return fans, as well as the room probe to be installed inside the screened room. Until then, the old system only had probes in the AHU return, outside the building, because it was impossible to enter the shielded room with other metal cables introducing various disturbances."
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string(1477) "A panel tailored to the customer's needs was created in the workshop and placed in place of the old one. All with a service interruption of just two days. Field probes and a climate probe (for controlling temperature, humidity and CO2) have been added inside the shielded chamber. To overcome the impossibility of bringing metal cables inside the shielded room, a LAN network was created including copper/fiber converters so as to enter the shielding only with an optical fiber cable and inside the shielded room use an existing spare power supply to power the fibre/copper converter, the additional Miniserver and the climate probe connected to it.
The temperature and humidity states of the supply and return channels were acquired with sauna sensors, while external atmospheric data was detected with an external probe.
The heat pumps and fans have been acquired in ModBUS, the mixing valves are driven with 0-10V signals, as are the servomotors of the recirculation, intake and exhaust dampers. Motorized valves were also installed on the 2" pipe to manage the flow of technical water with the possibility of independently opening and closing the circuits of the three heat pumps present.
Signals from a differential pressure switch to monitor the level of clogging of the air filters and an antifreeze probe were also acquired.
The temperatures of the technical water circuits on both the delivery and return were acquired using 1-Wire Sensors."
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string(290) "I chose to use Loxone for the robustness of the products, the construction quality, the programming flexibility offered, for the great remote control and diagnosis possibilities and for the possibility of making important changes and scans to the system without any interruption of service."
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["name"]=>
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["challenge"]=>
string(592) "The challenge was to take over an existing HVAC system that had never worked properly, serving a screened room with very specific requirements and limitations, eliminate the control system and install a new control panel that would manage the motorised valves, mixing valves, the three heat pumps, the two supply and return fans, as well as the room probe to be installed inside the screened room. Until then, the old system only had probes in the AHU return, outside the building, because it was impossible to enter the shielded room with other metal cables introducing various disturbances."
["solution"]=>
string(1477) "A panel tailored to the customer's needs was created in the workshop and placed in place of the old one. All with a service interruption of just two days. Field probes and a climate probe (for controlling temperature, humidity and CO2) have been added inside the shielded chamber. To overcome the impossibility of bringing metal cables inside the shielded room, a LAN network was created including copper/fiber converters so as to enter the shielding only with an optical fiber cable and inside the shielded room use an existing spare power supply to power the fibre/copper converter, the additional Miniserver and the climate probe connected to it.
The temperature and humidity states of the supply and return channels were acquired with sauna sensors, while external atmospheric data was detected with an external probe.
The heat pumps and fans have been acquired in ModBUS, the mixing valves are driven with 0-10V signals, as are the servomotors of the recirculation, intake and exhaust dampers. Motorized valves were also installed on the 2" pipe to manage the flow of technical water with the possibility of independently opening and closing the circuits of the three heat pumps present.
Signals from a differential pressure switch to monitor the level of clogging of the air filters and an antifreeze probe were also acquired.
The temperatures of the technical water circuits on both the delivery and return were acquired using 1-Wire Sensors."
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string(290) "I chose to use Loxone for the robustness of the products, the construction quality, the programming flexibility offered, for the great remote control and diagnosis possibilities and for the possibility of making important changes and scans to the system without any interruption of service."
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The challenge was to take over an existing HVAC system that had never worked properly, serving a screened room with very specific requirements and limitations, eliminate the control system and install a new control panel that would manage the motorised valves, mixing valves, the three heat pumps, the two supply and return fans, as well as the room probe to be installed inside the screened room. Until then, the old system only had probes in the AHU return, outside the building, because it was impossible to enter the shielded room with other metal cables introducing various disturbances.
Solution
A panel tailored to the customer's needs was created in the workshop and placed in place of the old one. All with a service interruption of just two days. Field probes and a climate probe (for controlling temperature, humidity and CO2) have been added inside the shielded chamber. To overcome the impossibility of bringing metal cables inside the shielded room, a LAN network was created including copper/fiber converters so as to enter the shielding only with an optical fiber cable and inside the shielded room use an existing spare power supply to power the fibre/copper converter, the additional Miniserver and the climate probe connected to it.
The temperature and humidity states of the supply and return channels were acquired with sauna sensors, while external atmospheric data was detected with an external probe.
The heat pumps and fans have been acquired in ModBUS, the mixing valves are driven with 0-10V signals, as are the servomotors of the recirculation, intake and exhaust dampers. Motorized valves were also installed on the 2" pipe to manage the flow of technical water with the possibility of independently opening and closing the circuits of the three heat pumps present.
Signals from a differential pressure switch to monitor the level of clogging of the air filters and an antifreeze probe were also acquired.
The temperatures of the technical water circuits on both the delivery and return were acquired using 1-Wire Sensors.
I chose to use Loxone for the robustness of the products, the construction quality, the programming flexibility offered, for the great remote control and diagnosis possibilities and for the possibility of making important changes and scans to the system without any interruption of service.
