Schreiber Chillers MC75AC - Manual (Page 8)

MC75 - AC
v With the power and rotary switch on, you then must turn the 24 volt manual switch on
this will allow the display readout on the controller to light up. You must set the
temperature you want to keep the mold. To do this you must push in the button on
the mold controller as marked and turn knob to temperature you desire the mold to
be kept at with this temperature setting.
Check for proper rotation of the water pump and fan. There is a rocket arm switch on
the mold controller to start water pump and check rotation.
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.
The mold controller will start the operation. When water pump is running the
5. 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 fan will come on, and the cooling light will be on
at this time. When the temperature reaches the set temperature, the fan will cycle off.
Please note fan rotation. It should be clockwise from the top of unit. 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 circuit protection installed in the electrical enclosure. All
three powers are protected with fuses. Make sure to use the correct size fuses.
Make sure the electrical power is off before you work on the unit. The power
supply connection is in the control panel marked L1, L2 & L3, and there is a marked
grounding lug. Do not by-pass this.
8.
Live Electrical Contacts could cause death or shock. NOTE: Please make sure
the power is off before you work on the electrical power circuit. Use a meter to
check for power off. This could be a dangerous process if precautions are not taken.
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.
11.
You MUST ALWAYS close the electrical enclosure before you turn the power on. Don't
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