2
These systems are best suited for maintaining precise ambient
temperatures inside an enclosed chamber. For an uninsulated, 15 cu. ft.
chamber, fabricated from 0.375” (10 mm) acrylic, these coolers can reduce
the temperature by 5, 10 and 18
°
F (3, 5 and 10
°
C) respectively.
Heat load, insulation and chamber size will ultimately determine the level of
cooling that can be obtained.
2.0 COOLING SYSTEMS SET-UP
1. All Model 5473 Thermoelectric Cooling Systems operate in the same
manner. The Model 5473s use an external DC Power Supply. While the
type of Power Supply and location of the Supply does not affect
operation, it is noted for maintenance purposes.
2. The Thermoelectric System is an integral part of the chamber that usually
protrudes through the rear wall, but also may be installed on top or side.
3. The Thermoelectric Cooler is a solid state heat pump. It is virtually
maintenance free, with no filters to change. The only moving parts are
the fans. As air inside the chamber is drawn through the interior heat
sink by the internal thermoelectric fan (this fan is separate and different
form the chamber circulation fans), heat is removed from the air and
conducted through the thermoelectric modules to the exterior heat sink.
The heat is removed from the exterior heat sink and dissipated into the
atmosphere by one or more external fans.
DO NOT BLOCK AIRFLOW
TO THE REAR OF THE UNIT.
The hot air must be allowed to dissipate.
Increased hot side temperature = Decreased cooling effect.
3.0 OPERATION
1. Plug the AC Line Cord from the Power Supply into the “DECREASE”
outlet of a Temperature controller. (Thermo-Electric Cooler and Power
Supply are mounted and wired in Models 5518 & 5532.) Turn on the
“DECREASE” switch located on the front panel of the Temperature
Controller.
