Schreiber Chillers MC75WC - Manual (Page 5)

MC75 - WC
v After checking rotation, setting the temperature of water you need for the mold, you
can now start the water pump. The unit is ready for operation.
5.
The mold controller will start the operation. When water pump is running the electrical
heater will come on, and the heater light will be on. When set temperature is reached
then the heater light the heating element will go off. If the return water should go over 2
o
F above the set point then the chilled water solenoid will open supplying chilled water to
the heat exchanger. The cooling light will be on under these conditions when this
temperature is satisfied the cooling light will go off. Causing the solenoid to close.
When mold controller is set properly the unit will maintain the set temperature
automatically. The narrow band controller automatically selects heating or cooling.
6.
Please do not use oil in this reservoir. You might want to add an inhibit, ethylene glycol.
But only if necessary.
7.
CAUTION: This unit has a 3 gauge fuse and holder installed in the three phase power.
This will protect the control system. Make sure the electrical power is off before you
work on the unit. Do not by-pass this.
8.
Live Electrical Contacts could cause death or shock. NOTE: Please lock out and tag
power before you connect electrical power. Only qualified electricians are to do
electrical work. The wiring to this machine must be proper sized as per the electrical
code. You must ground this unit. No short cuts on electrical wiring.
9.
Don't forget the water in this system is very hot to the touch, it will cause harm to anyone
who touches this piping. Be sure you wear protection when
working with this mold
controller.
10.
When installing the power cord to this unit, first make sure it is the correct size. The
cord must be 600 VOLT TESTED, with four #12 wires with one being the ground. YOU
MUST always use the ground. Remove the four screw covering the breaker terminals
and wire to L1, L2, & L3, green being ground.
11.
You MUST ALWAYS replace this cover before you turn the power on. Don't forget to
check rotation of water pump. Make sure the voltage you apply to this mold controller
matches the data plate on unit.
7