Technical_reference - 第116页
Technical Service Manual 116 Revision Dat e: August 2004 The Polar Cooling™ and Contr ol Cooling system is com prised of three m ajor elem ents: 1) Heat exchangers , 2) Radiator-Fan Unit, 3) Reservoir- Pum p Unit HEAT EX…
Technical Service Manual 115 Revision Date: August 2004
The following diagram shows the Polar Cooling™ option configured for an oven with three cooling zones. (Two or four
cooling zones would be similar)
PolarCool ™ and Control Cooling Plumbing Schematic
The cooling fluid is Vitronics SUPER COOL cooling fluid, Part No. 3313350. During normal operation, the cooling
fluid will be warmer than the “dew point temperature” of the room and not warmer than the frame of the oven.
Two thermocouples sense the coolant temperature, which is displayed on the Oven Control Software screen.
DO NOT SUBSTITUTE ANY OTHER FLUID AS COOLANT IN THIS SYSTEM!
Technical Service Manual 116 Revision Date: August 2004
The Polar Cooling™ and Control Cooling system is comprised of three major elements:
1) Heat exchangers,
2) Radiator-Fan Unit,
3) Reservoir-Pump Unit
HEAT EXCHANGERS:
A “cold plate” and a “flux-capture filter” fin assembly combined form a cell heat exchanger.
The cold plate is a gas-to-liquid heat-absorbing aluminum assembly with tubing connections and a serpentine path inside
for coolant flow.
The aluminum fume capture filter/fin element is housed within an aluminum “clam-shell” housing which is seated against
the cold plate. This assembly conducts heat to the cold-plate as well as filters flux vapors from the oven gas.
The filters require periodic maintenance, but can be removed and replaced using a simple hand tool (There is no liquid
connection). Two cam locks in the air recirculation slots of the cooling cells secure the clamshell assembly. Once the
cam locks are released, the "clam shell" housing can be removed from the cell and opened to expose the filter.
Used filters can be cleaned with isopropyl alcohol and reused, or discarded.
“Clam-Shell” Assembly with fume-capture filters
Technical Service Manual 117 Revision Date: August 2004
RADIATOR-FAN UNIT:
The radiator-fan units are at the rear of the Oven, mounted to the top frame under the sheet metal panels near the Off-
load (Exit) end of the Oven. Air is forced through the radiator by an axial fan.
Proper operation and cooling cannot take place without adequate airflow through the radiator-fan unit(s).
RADIATOR-FAN UNIT