Energy-saving SECOTEC refrigerated dryers up to 285 cfm

Energy savings with stable pressure dew point performance

With their high efficiency storage control, SECOTEC TA to TD series (*) refrigerated dryers can handle dew points to 38 °F, all while ensuring maximum efficiency at all times. A generously-sized thermal mass reduces material stress and assures stable pressure dew point performance.

  • Significant savings potential during part load operation and during breaks
  • Highly durable and easy maintenance system design
  • Air-cooled versions for ambient temperatures up to 110 °F

Your advantages

  • Energy savings:
    Thanks to the part-load energy-saving control, excess cooling power can be temporarily stored in the thermal mass for later cooling without the need for power consumption.
  • Long-term reliability:
    The high-quality refrigerant circuit of SECOTEC refrigerated dryers assures reliable performance in ambient temperatures up to +110 °F. The large condensate separator and electronic ECO-DRAIN condensate drain provide reliable condensate removal during all load phases. Electrical equipment complies with EN 60204-1.
  • Exceptionally service-friendly:
    The enclosure was designed with easy component accessibility in mind, which helps significantly reduce labor costs for maintenance and testing work.

* The refrigerated dryer contains fluorinated R-134a refrigerant. The TA to TD series models feature a hermetically-sealed refrigerant circuit.

The perfect partner: the KCF oil/water separator
KCF condensate filters

Our tip: Take advantage of cost-effective, legally-compliant treatment of condensate before drainage into the regular wastewater system with KCF oil/water separators.

 

Product details

SECOTEC – always saving energy

The load on a refrigerated dryer doesn't just depend on the volume of compressed air to be dried (grey area), but more importantly depends on how much water the incoming compressed air contains. The volume of water (moisture) increases as the temperature rises, so the load on refrigerated dryers increases dramatically when ambient temperatures are high, such as during summer (yellow curve).

Conversely, when the temperature drops during the winter (turquoise curve), there is less load on refrigerated dryers. To maintain a stable pressure dew point throughout these fluctuations, refrigerated dryers should be designed to provide sufficient performance during peak load times, and have additional reserve capacity.

Like the flow rate and temperature range, refrigerated dryers are always operating within the load range of 0 to 100 %. Because SECOTEC storage control ensures energy is only used as needed across this entire load range, users benefit from exceptional savings.

The energy-saving effect
Maximum energy savings thanks to storage control
Maximum energy savings thanks to storage control with SECOTEC refrigeration dryers

The duty-cycle of refrigerated dryers is always fluctuating between 0 and 100 %. Unlike conventional part-load control systems, SECOTEC storage control precisely adjusts electrical power consumption during all load phases.

This allows SECOTEC refrigerated dryers to save almost 60 % of energy costs compared to refrigerated dryers with hot gas bypass control running at an average of 40% of capacity.

In contrast to conventional systems, the thermal mass in SECOTEC dryers always remains cool. This means compressed air can be dried effectively even during start-up phases. The high-quality insulation around the thermal mass also helps to keep energy use to a minimum. With SECOTEC refrigerated dryers, you get compressed air drying with outstanding energy efficiency. The high thermal mass capacity dries with reduced component wear and tear.

Optimal drying with low-wear operation
Optimum drying performance and environmentally-sound operation with SECOTEC refrigeration dryers

SECOTEC refrigerated dryers ensure stable pressure dew points in all load phases. Dried compressed air can cool to a temperature of + 38°F (= achievable pressure dew point) without the moisture in the air condensing. Even at higher ambient temperatures, this ensures optimal protection for downstream compressed air systems and points-of-use.

Conventional refrigerated dryers with switching operating modes, but without an additional thermal mass, use the heat exchanger material itself as a thermal mass. In these dryers, it is therefore necessary to switch the refrigerant compressors and fan motors on and off much more frequently in order to maintain the required cooling performance. To reduce switching frequency and wear, the refrigerant circuit therefore only switches on at much higher pressure dew points. The resulting fluctuations in the pressure dew point negatively affect drying performance. This can be risky, since corrosion can occur even with relative compressed air humidity of 40 % – corrosion can therefore occur even without condensate forming.

SECOTEC refrigerated dryers, on the other hand, ensure material-friendly operation thanks to their high thermal storage capacity. Once the thermal mass has been charged, the refrigerant compressor and fan motor can remain switched off for much longer periods of time without impacting pressure dew point stability.

Design and Function
Design and function of SECOTEC refrigeration dryers
  1. Air / air heat exchanger
  2. Air/refrigerant heat exchanger with thermal mass
  3. Condensate separators
  4. ECO-DRAIN condensate drain
  5. Refrigerant compressor
  6. Refrigerant condenser
  7. Capillary tubes
  1. Filter / dryer
  2. High pressure switch
  3. Low pressure switch
  4. Fan pressure switch
  5. PDP trend indicator
  6. Compressed air inlet and outlet
Technical specifications TA

Standard version

ModelTA 5 TA 8 TA 11
Flow rate cfm 20 30 45
Pressure loss psi 0.87 1.74 2.32
Electrical power consumption at 50 % vol. hp 0.23 0.24 0.4
Electrical power consumption at 100% vol. hp 0.4 0.46 0.59
Working pressure psi 44 - 232 44 - 232 44 - 232
Ambient temperature Label [Common - Unit °F] is missing 38 - 110 38 - 110 38 - 110
Inlet temperature Label [Common - Unit °F] is missing 38 - 130 38 - 130 38 - 130
Weight lb 154 176 187
Dimensions W x D x H in 24.8 x 19.1 x 30.7 24.8 x 19.1 x 30.7 24.8 x 19.1 x 30.7
Compressed air connection¾ NPT ¾ NPT ¾ NPT
Condensate drain connection¼ NPT ¼ NPT ¼ NPT
Power supply115 V / 1 Ph / 60 Hz 115 V / 1 Ph / 60 Hz 115 V / 1 Ph / 60 Hz
RefrigerantR 134a R 134a R 134a
Refrigerant volume as CO2 equivalent t 0.4 0.3 0.5
Global warming potential 1,430 1,430 1,430
Refrigerant mass lb 0.64 0.46 0.82

Technical specifications TB

Standard version

ModelTB 19 TB 26
Flow rate cfm 71 95
Pressure loss psi 2.47 2.47
Electrical power consumption at 50 % vol. hp 0.47 0.64
Electrical power consumption at 100% vol. hp 0.67 0.98
Working pressure psi 44 - 232 44 - 232
Ambient temperature Label [Common - Unit °F] is missing 38 - 110 38 - 110
Inlet temperature Label [Common - Unit °F] is missing 38 - 130 38 - 130
Weight lb 238 256
Dimensions W x D x H in 24.4 x 21.3 x 37.9 24.4 x 21.3 x 37.9
Compressed air connection1 NPT 1 NPT
Condensate drain connection¼ NPT ¼ NPT
Power supply230 V / 1 Ph / 60 Hz 230 V / 1 Ph / 60 Hz
RefrigerantR 134a R 134a
Refrigerant volume as CO2 equivalent t 0.8 0.8
Global warming potential 1,430 1,430
Refrigerant mass lb 1.19 1.17

Technical specifications TC

Standard version

ModelTC 31 TC 36 TC 44
Flow rate cfm 127 134 170
Pressure loss psi 2.32 2.9 1.45
Electrical power consumption at 50 % vol. hp 1.02 1.02 1.17
Electrical power consumption at 100% vol. hp 1.39 1.48 1.96
Working pressure psi 44 - 232 44 - 232 44 - 232
Ambient temperature Label [Common - Unit °F] is missing 38 - 110 38 - 110 38 - 110
Inlet temperature Label [Common - Unit °F] is missing 38 - 130 38 - 130 38 - 130
Weight lb 342 375 441
Dimensions W x D x H in 30.1 x 26 x 39.7 30.1 x 26 x 39.7 30.1 x 26 x 39.7
Compressed air connection1¼ NPT 1¼ NPT 1¼ NPT
Condensate drain connection¼ NPT ¼ NPT ¼ NPT
Power supply230 V / 1 Ph / 60 Hz 230 V / 1 Ph / 60 Hz 230 V / 1 Ph / 60 Hz
RefrigerantR 134a R 134a R 134a
Refrigerant volume as CO2 equivalent t 1.5 1.6 1.5
Global warming potential 1,430 1,430 1,430
Refrigerant mass lb 2.25 2.43 2.31