Unitary Controllers
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Digi-TUC Terminal Unit Controller The Digi-TUC Terminal Unit Controller modulates airflow and the reheat valve to ensure the thermal comfort need. Indoor air quality and air circulation is ensured through a minimum airflow setting. The Digi-TUC can also reset the room temperature and minimum airflow based on occupancy or lighting signals. You have the option to use pre-programmed sequences or program your own sequences. |
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Digi-TUCi Intelligent Terminal Box Controller The Digi-TUCi Intelligent Terminal Box Controller automatically modulates airflow and the reheat valve to ensure the indoor air quality air circulation, and thermal comfort needs. The Digi-TUCi can be used for both the existing terminal box retrofits and new construction. The Terminal Box Controller makes the operators’ and designers’ jobs easier. Minimum airflow specifications and calibration are no longer needed. The Digi-TUCi makes your facility 20% to 40% greener since it reduces your cooling, heating, and fan power 20% to 40% more compared to existing VAV terminal box applications. The terminal Box Controller fits your budget well. It does more for you but cost less than using other terminal box controllers. |
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Digi-FHC Fume Hood Controller The Digi-FHC Fume Hood Controller varies the air volume exhausted through the hood depending on the hood sash position (option 1) or sidewall airflow rate to maintain a constant face velocity. It also controls make-up and exhaust airflow valves to achieve the lowest airflow rate necessary to maintain room temperature, minimum ventilation rates, and proper pressurization. You also have the choices to select fume hood face velocity control, room pressure control, or both. The controller eliminates excess face velocity that can generate turbulence leading to an undesired release of contaminated air. It also reduces energy costs by decreasing the airflow when the sash is not fully open. The controller displays the average airflow (FPM) of the fume hood and provides a visual and audible alarm when there is a hood malfunction or insufficient face velocity. A mute button is provided to silence the alarm. |
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Digi-SCS SmartHood® Controller and Retrofit Kit for kitchen exhaust fans The Digi-SCS SmartHood® Control System can identify whether the kitchen hood is in use or not by monitoring the hood temperature, smoke or steam concentration. When the kitchen hood is in use, the controller modulates the exhaust fan VFD speed and make-up airflow to meet the cooking demand and ensure building comfort. During the idle/non-cooking mode, the exhaust fan is operated at minimum speed. Temperature sensors and VFD installation are required. The Digi-SCS can be used for both retrofitting existing systems and new systems. The SmartHood Controller ensures proper ventilation based on actual need. It prevents the excessive negative building pressure when the make-up air unit is “accidentally turned off”. It ensures the kitchen thermal comfort by eliminating excessive cold make-up air in winter and humid, hot air in summer. The SmartHood® Controller steps up the energy standard for the cooking hood systems by minimizing exhaust fan and make-up unit fan speed during idle periods. |
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Digi-SSC and Digi-CMS Multiple Stack Systems The multiple stack system consists of the Digi-SSC (Stack System Controller) and Digi-CMS (Customized Multi-Stack). The Digi-SSC sequences the stack operation and modulates the exhaust fan speed to ensure the stack exit velocity is at required level s and correct static pressure set points in the exhaust duct. A VFD is required for the exhaust fan. The Multi-Stack system can be used to retrofit an existing system and for new construction. The Multi-Stack Controller can be used as an independent controller or a unitary controller for any control system. The Multi-Stack System ensures safety by maintaining the required stack exit velocity. It ensures smooth fume hood operation by maintaining stable exhaust duct static pressure. The Multi-Stack System reduces the stack airflow in a range of 50% to 90% by eliminating the make-up air. It is an easy task for the Multi-Stack System to reduce the exhaust fan power by 50%. |
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Digi-AHU Air Handling Unit Controller The Digi-AHU Controller controls both the supply and return air fans, heating and cooling coils, economizers and dampers, and others to ensure excellent room comfort, minimal maintenance, and energy cost. The AHU controller can be used as an independent controller or a unitary controller of any major building automation systems. The Digi-AHU Controller ensures the positive building pressure using our patented and reliable volumetric tracking technology. This means no more expensive moisture related repairs! The AHU Controller ensures the required airflow and outside airflow using DTL’s reliable Fan Airflow Station (Digi-FAS) Technology. No more indoor air quality related issues! The Digi-AHU eliminates the need for a static pressure sensor downstream of the duct or end of ductwork. Your operator never needs to remember its location. Of course, no repair will ever be required! There is no easier form on maintenance on the market today. The AHU Controller ensures the minimum duct system resistance and maximum fan efficiency by utilizing advanced S-method technology, which ensures that dampers are open without seeing them. This reduces fan power to a minimum! When the Digi-AHU Controller is integrated with DTL Digi-TUC, your AHU becomes a power house for comfort and energy efficiency. |
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Digi-BLR Boiler Retrofit Kit and Controller The DIgi-BLR is a controller and retrofit kit to implement modern variable flow technology and accurate combustion control to your heating boilers and utility boilers. The Digi-BLR can be integrated into the existing control without any impact on the safety and operation procedure. The operator can enjoy unchanged operation sequence while enjoying quite operating environment and improved energy performance. The Digi-BLR ensures safe operating environment by controlling combustion chamber pressure accurately using reliable airflow metering technology and pressure monitoring as safe guard. The DiGi-BLR reduces fuel consumption by as much as 3% by accurately controlling desired air/fuel ratio regardless your load ratio and excellent combustion efficiency. The Digi-BLR reduces the blower and/or draft fan power in a range of 30% to 80% and reduce feed water pump power from 20% to 90% depending on boiler load profiles. |
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Digi-CLN Cleanroom Controller The Digi-CLN, clean room controller, ensures the cleanroom environmental requirement using true variable air volume technology. The Digi-CLN is suitable for displacement flow clean rooms. It can also be utilized in other type of clean rooms. The Digi-CLN measures the on-line dynamic dust concentration and generate realistic contour concentration diagram, and record the actual concentration continuous for one year. The air circulation is controlled based on the maximum concentration. It ensures the clean room concentration requirement. The Digi-CLN minimizes the air circulation rate. Consequently, it minimizes the fan power, cooling and heating energy consumption significantly. |
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Digi-BLD Blending Station The Digi-BLD, the blending station and controller, accurately control the supply water temperature and differential pressure by mixing the supply and return water. It eliminates the need of the secondary pumps by utilizing the primary pump power, which is conventionally consumed by the control valves. It was specially designed to replace the point chillers in industrial process cooling. It is suitable for district heating water system, district cooling water systems, and other processing water systems. The Digi-BLD reduces the mechanical room footage and reduces pump power in a range of 30 to 80% for a typical industrial process water system. |
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Digi-HWP The Digi-HWP, hot water pump controller, is the brain of the patented two pump system for hot water systems. It provides complete start stop and variable speed control. The Digi-HWP reduces 30% capital costs of pump and piping, and reduces up to 50% mechanical room footage by using our patent technology. The Digi-HWP modulates the pump speed and number of pump in operation using our patent pump speed control technology to ensure minimum system resistance and maximum pump efficiency. The Digi-HWP uses our patented water flow measurement to ensure the minimum hot water flow through the boilersfor safe operation. The Digi-HWP has up to 80% full load pack up if one of the two pumps is in failure mode. |
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Digi-CWP The Digi-CWP, condenser water pump controller, is the brain of the patented two pump system for condenser water systems. It provides complete start stop and variable speed control. The Digi-CWP reduces 30% capital costs of pump and piping, and reduces up to 50% mechanical room footage by using our patent technology. The Digi-CHP uses our patented water flow measurement to ensure the minimum chilled water flow through the chillers for safe operation. The Digi-CWP modulates the pump speed and number of pump in operation using our patent pump speed control technology to ensure minimum system resistance and maximum pump efficiency. The Digi-CWP has up to 80% full load pack up if one of the two pumps is in failure mode. The Digi-CWP also provides the cooling tower control option at the request. |
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Digi-CHW The Digi-CHP, chilled water pump controller, is the brain of the patented two pump system for chilled water systems. It provides complete start stop and variable speed control. The Digi-CHP uses our patented water flow measurement to ensure the minimum chilled water flow through the chillers for safe operation. The Digi-CHP reduces 30% capital costs of pump and piping, and reduces up to 50% mechanical room footage by using our patent technology. The Digi-CHP modulates the pump speed and number of pump in operation using our patent pump speed control technology to ensure minimum system resistance and maximum pump efficiency. The Digi-CWP has up to 80% full load pack up if one of the two pumps is in failure mode. It has the option for chiller start and stop control. |
