Vitronics Soltec XPM3m, Техническое справочное руководство

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Technical Reference Manual-XPM3m Revision Date: August 2014
EC2 Cooling Option Reservoir-Pump assembly is mounted on the frame at the rear of the oven.
The reservoir is a 1.6 Gallon(6 Liters) stainless steel tank. The level switch in the reservoir monitors coolant level
and the flow switch checks return flow. The high-pressure switch trips at 60 PSI. A periodic check of the coolant
level in the reservoir is necessary.
The coolant return line is submerged near the bottom of the reservoir to reduce aeration of the coolant and to help
assure condensation of any returning vapor. The supply line to the coolant pump is in the bottom of the reservoir
with a valve for draining the system. The check valve in the supply line prevents coolant flow back to the reservoir.
It also permits cleaning the in-line strainer without draining the heat exchangers.
The flow switch and level switch are inputs for the Oven Control Program display of the LOW FLOW - LOW
COOLANT alarm.
TESTING:
The motor and supply circuit should be tested. If the Voltage is NOT within the 100 to 120V range recommended,
the transformer connections should be changed according to the changeover chart.
1) Allow the motor to reach a stable temperature with the oven hot.
2) The case temperature of the motor should not exceed 80°C. A normal Pump Motor Case temperature
is about 70 - 80°C at 115V.
3) The internal temperature cut off switch is set for 150° C. (case temperature about 100° C.)
4) If the motor is over temperature, operating at 100 to 116 VAC, it should be replaced.