Technical Reference
Manual-XPM3m Revision Date: August 2014
XPM3m EXTERNAL COOLANT SUPPLY OPERATION:
The External Cooling Liquid Supply Option is designed to be activated and operated with the reflow system at all
times. It requires a temperature-controlled flow of clean coolant at a constant pressure and flow to the heat
exchanger(s). The coolant temperature should remain above the local dew point when operating to avoid
condensation inside the cooling cells. The system can be drained by using the ball valve attached to the inlet
plumbing leg.
SAFETY AND CONTROLS:
Inlet High Pressure Switch:
Set to 50 psi, alarms when supply pressure is greater than 50 psi.
Inlet Shut Off Valve:
Solenoid valve used to stop flow when machine is inactive
Inlet Thermocouple (T/C 1):
Monitors inlet cooling liquid temperature
Flow Switch:
Set to 1gpm, alarms when flow falls below set point
Check Valve:
Prevents outlet from back filling system
COOLANT SPECIFICATION:
Recommended:
Vitronics Soltec Super Cool Part No. C00234 (4 liters)
Distilled Water (recommend use of an additive to prevent algae growth)
Lab grade Propylene Glycol mixed with Distilled Water (20%-80% mixture)
NOTE: De-ionized water or other coolants that will react negatively with the materials used in the system must not to
be used
.
This will void the machine warranty.
XPM3m EXTERNAL 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).
Pay extra attention to the underside of the radiator, as this is the area where the dirt and dust will build up.
RADIATOR-FAN UNIT
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