Technical Reference
Manual-XPM3m Revision Date: August 2014
XPM3m EC2 COOLING PACKAGE
Description:
Optional on all machines
Performance Level:
Entry level
Cooling Medium:
Liquid
Warnings/Alarms:
Coolant Low Flow, Coolant High Pressure
Controls:
None
Facilities Impact:
Uses on-board pump & reservoir system, waste heat exhausted through top of bonnet
The Polar Cooling package is optional on N2 systems and is meant to be used for entry level cooling
performance. It is similar to the option offered on XPM2 in that it uses an on-board recirculating pump and reservoir
to supply coolant to the internal heat exchangers. The heat collected by the internal heat exchangers is exhausted
through the top of the bonnet via an externally mounted heat exchanger.
All upper cool cells with heat exchangers are supplied with hinged and latched faceplates that can be
opened from the inside of the tunnel. This provides access to remove, clean and maintain the heat exchangers with
a minimum of effort.
Cooling performance is dependent on the temperature of the machine-supplied coolant. There is no control
over the temperature of the coolant or the cooling cells only a monitoring thermocouple. The heat load of the oven
will determine the actual coolant temperature. The more cooling cells there are the higher the coolant temperature
will be.