Stoelting E157, Руководство по обслуживанию

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8.1 COMPRESSOR RUN CAPACITOR OPEN, SHORTED, OR BLOWN
CAUSE CORRECTION
Improper capacitor ........................................................... Determine correct size and replace.
Excessively high line voltage ........................................... Contact your local power company
(110% of rated max.)
8.2 COMPRESSOR RELAY DEFECTIVE OR BURNED OUT
Incorrect relay .................................................................. Check and replace.
Incorrect mounting angle .................................................. Remount relay in correct position.
Line voltage too high or too low ........................................ Contact your local power company.
(+/- 10%)
Excessive short cycling ................................................... Determine reason and correct.
Relay being influenced by loose vibrating mounting ......... Remount rigidly.
Incorrect run capacitor ..................................................... Replace with proper capacitor.
8.3 COMPRESSOR STARTS AND RUNS, BUT SHORT CYCLES ON OVERLOAD PROTECTOR
Low voltage to unit ........................................................... Determine reason and correct.
Overload protector defective ............................................. Replace overload.
Excessive discharge pressure ......................................... Check ventilation, restrictions in cooling medium,
restrictions in refrigeration system.
Suction pressure too high ................................................ Check for overcharge. Adjust or replace expansion valve.
Compressor too hot - return gas hot ................................ Check refrigerant charge (fix leak), add refrigerant if
necessary.
Compressor motor has a winding shorted ........................ Replace compressor.
8.4 COMPRESSOR RUNS CONTINUOUSLY
Shortage of refrigerant ...................................................... Fix leak, add refrigerant.
Torque control defective .................................................... Check and replace torque control.
Mix in hopper too warm .................................................... Refrigerant mix before adding to hopper.
Tension spring on torque .................................................. Spring length should be 3-1/8" long. Adjust if necessary.
Restriction in refrigeration system .................................... Determine location and remove.
Restricted air flow to freezer ............................................ Louvered panels require 6" (15.2 cm) clearance for air
intake and 10" (25.4 cm) clearance for discharge.
Filter dirty ........................................................................ Clean or replace filter.
Fan not running ................................................................ Check fan and replace if necessary.
Dirty condenser ............................................................... Clean condenser.
Mix too rich ...................................................................... Take "Brix" reading. Fill with properly mixed product.
8.5 UNIT NOISY
Drive cap will not stay in place ......................................... Check locking pin inside of drive shaft and slot in agitator
for excessive wear and replace if necessary.
Loose parts or mountings ................................................ Find and tighten.
Agitator drive shaft not lubricated ..................................... Lubricate agitator drive shaft.
Tubing rattles ................................................................... Reform to be free of contact.
Mix too lean ..................................................................... Fill product cylinder with properly mixed neutral base.
Bent fan causing vibration ................................................ Replace fan.
Fan motor bearings worn .................................................. Replace motor.
Agitator fingers are bent ................................................... Realign or replace agitator and stationary fingers.
Internal compressor spring broken ................................... Replace compressor.
Lower agitator bushing is missing .................................... Install lower bushing.
8.6 COMPRESSOR WILL NOT START
Line disconnect switch open ............................................ Close start or disconnect switch
Overload protector tripped ................................................ Will reset after cooling.
Torque control defective .................................................... Check and replace torque control.
Contactor defective .......................................................... Replace contactor.
Wiring improper or loose .................................................. Check wiring against diagram.
24 Hour Timer not set for compressor operation .............. Reset timer.