Maxi-therm packages

Maxi-Therm delivers a heat transfer system design that increases performance, conserves energy, and maximizes use of mechanical room space.
MAXI-THERM
Maxi-Therm Heat Exchangers


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Including
2-75 HP circulating pumps. Expansion tank. Air separator. Control panel. Piping & accessories.

Not required
No steam PRV station / No steam safety relief to roof / No pumping sub-station.

Energy savings & greenhouse gas reduction
A result of using latent & sensible heat of steam, subcooling condensate to 200°F (no flash steam).

Stability
Stability of liquid set point temperature ± 2°F, on variable load condition.

High Efficiency Steam-To-Liquid Heating Skid with Vertical Flooded Heat Exchanger - Maxi-Therm MC Series Specification for Building Heat Applications

Liquid is heated in the shell of a vertical heat exchanger designed to be flooded at around 20% at full load in order to have a condensate outlet temperature of 200oF or lower, eliminating energy losses due to flash steam. High pressure steam can be supplied to the skid; no pressure reducing station with safety relief valve vented to the roof required. Condensate can be lifted at the outlet of the skid if backpressure is lower than inlet steam pressure; no condensate pump required.

The process is modulated using an electric (pneumatic available upon request) fail-safe control valve installed on the condensate outlet that exposes the necessary heating surface by flooding the heat exchanger proportionally to the instantaneous required load. The skid shall be hydrostatically tested prior to shipping. The control sequence shall be done by the building automation system (control panel is available as an option).

An outlet temperature setpoint stability of +- 2oF must be achieved even on partial load. Customer's circulating pump(s) must push the liquid to be heated through the heat exchanger.

  • The following components are included
    and pre-fabricated in the package :
  • Vertical heat exchanger with straight tubes, constructed with all carbon steel components except ½" OD x 0.049" wall copper tubes, ASME stamped of 150 psig @375F (higher rating available upon request). Heat exchanger to have a removable bottom head to give access to the tubes for maintenance
  • Stabilizing pump of XX HP, 115/1/60, power supply and disconnect by others, with SS316 check valve and isolation valve on the pump line
  • Bi-metal thermometer at liquid inlet and
    outlet, thermowells included
  • Modulating fail-safe electric control valve,
    control signal and power supply by others
  • Electric temperature sensor on liquid outlet by others
  • F & T steam trap with flanged connections
  • 100 mesh strainer with blowdown valve
    on the condensate outlet
  • Liquid piping in carbon steel SCH40 and
    condensate piping in carbon steel SCH80
  • Heavy duty painted steel frame