Schreiber Chillers MC75AC - Manual (Page 18)

MC75 - AC
MAINTENANCE - PART I
1.
Maintenance to mold controller:
þ
Flush out water reservoir as needed. Do not allow this unit to run with dirty supply
water.
þ
Blow out condenser as needed. Do not allow this condenser to become
clogged. You will cause poor heat transfer on the cooling cycle.
þ
You can remove the condenser coil cover, same as service panel.
þ
All motors have internal overload protection. There are no lubrication joints to any
motor.
þ
All motors have internal overload protection. There are no lubrication joints to any
motor.
2.
When replacing the heating element. MAKE SURE the electrical power supply is turn.
Check power with meter.
þ
Drain water tank.
þ
Remove the electrical leads to the element. Power must be off. You should apply
some type of lubricant (WD40) to remove these screws.
þ
Remove the four 5/16 - 18 stainless steel cap screw. NOTE: You must lubricate
(WD40) while removing. Do not force the nuts off.
þ
Remove element (7.5 KW)
þ
Clean the tank surface plate, to make sure you have a clean surface for the gasket.
þ
If replacing the heater make sure it is stainless steel on the back up plate.
þ
Always use a new gasket.
þ
Install gasket on element and put electrical element in place.
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