General Information; Introduction; Models Covered - AEC TrueTemp Series Operation And Installation Manual

•
•
•
AEC/AppllcaUon Engineering
1
General Information
1-1 Introduction
AEC/ Application Engineering TDH Series hot oil temperature control units are reliable,
accurate, and easy-to-use process temperature control units. They are self-contained, portable,
and shipped ready to use.
A properly installed, operated, and maintained IDH will provide years of reliable operation.
Please read and follow the instructions in this manual to get the most satisfaction from your unit.
The TDH unit is designed to circulate heat transfer fluid through a process and precisely.
automatically, and reliably maintain it at a specified temperature. Standard operating ranges run
from I 00°F (38°F) up to 400°F (204°C) on IDH4 models, up to 550°F (288°C) on TDH5
models, and optionally, up to 650°F (343°C). The unit is suited for use with a selection of
commercially available heat transfer fluids. AEC, Inc. recommends True Therm™ heat transfer
fluid for best results.
Rapid recirculation of the relatively small amount of fluid provides close and uniform
temperature relation between DELIVERY and RETURN lines. This operation does, of course,
depend on the configuration of your process and any restrictions within your process. This
recirculation, combined with the immersion heater and optional cooling capability, can give fast
and accurate response to bring the heat transfer fluid up to temperature or changes in the settings
when needed.
1-2 Models Covered
This manual lists operation, installation, and maintenance instructions for the TDH Series hot oil
temperature control unit.
Model numbers are listed on the serial tag. A model number followed by
-Q
indicates a specially
constructed unit, and not all information in this manual may apply. Please know the model
number, serial number, and operating voltage of your temperature control unit if you contact
AEC, Inc .
TOH TrueTemp
™ Series Hot Oil Temperature Control Units
Page7