P24AL & P34AL Service Manual
TROUBLESHOOTING
12/2016
8-7
Symptom: Low ice capacity (cont.)
Possible Cause
Possible Remedy
Excessively high head pressure
Check cooling tower or evaporative condenser
to make sure sufficient water is provided for
cooling and the equipment is operational to
cool the water. Also see “Symptom High Head
Pressure”.
Suction regulator out of adjustment or
defective (optional)
Check the freezer pressure and compare to the
main suction pressure. The suction regulator
should regulate the freezer pressure and create
a 2 psig pressure drop across the valve. Adjust
pressure regulator. Repair or replace defective
valve.
Thawing gas solenoid valve (18) leaking
through during freeze cycle
Check the manual opening stem to make sure it
is in the automatic position (stem screwed in).
Check for leak by sound, temperature
difference and frost during a freeze cycle.
Close the stop valve (90) to confirm suspicion
of leakage. Repair or replace the valve.
Symptom: Poor ice quality
Possible Cause
Possible Remedy
Excessive concentration of solids in the water
tank usually indicated by a build-up of mineral
deposit on the sides and bottom of the tank and
opaque ice production. Also, water distributors
restricted.
Perform a cleaning procedure as well as
removing the freezer cover and cleaning the
water distributors. Make sure the flushing
valve (63) is functioning and the tank overflow
piping is not restricted.
Insufficient water supply indicated by a low
level in the tank
Check water pressure, 40 psig is recommended
minimum. Check for a water line restriction,
partially closed valve, or defective make-up
water float valve. Make sure the water tank
drain is closed.
Water pump rotation wrong direction
Check rotation in relation with arrow on pump
housing and reverse two wires at the motor if
necessary.
Low refrigerant charge, causing an ice out
problem and re-freeze
Check refrigerant level mark on the receiver
and on the painted portion of the gage glass
guard. Be sure to keep the gage glass cocks
closed when finished checking the level.
Suction Pressure to low
Adjust suction regulator valve
Restriction in liquid line, causing short freeze
cycle
Check for closed valve, defective solenoid
valve (20), float switch defective or strainer
restricted. The liquid line will normally have
frost on the down-stream side of a restriction,
especially as the suction pressure decreases.
Summary of Contents for P-24AL
Page 1: ...12 2016 P 24AL P 34AL TUBE ICE MACHINE Service Manual 5000 ...
Page 10: ...P24AL P34AL Service Manual TABLE OF CONTENTS 12 2016 vi ...
Page 15: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 5 Figure 1 2 P24AL Right Side ...
Page 16: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 6 Figure 1 3 P24AL Back Side ...
Page 17: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 7 Figure 1 4 P24AL Left Side ...
Page 18: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 8 Figure 1 5 P34AL Front Side Control Panel ...
Page 19: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 9 Figure 1 6 P34AL Right Side ...
Page 20: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 10 Figure 1 7 P34AL Back Side ...
Page 21: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 11 Figure 1 8 P34AL Left Side ...
Page 22: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 12 ...
Page 62: ...P24AL P34AL Service Manual START UP OPERATION 12 2016 5 8 ...
Page 84: ...P24A P34A Service Manual TROUBLESHOOTING 12 2016 8 12 ...
Page 110: ...P24AL P34AL Service Manual SERVICING OPERATIONS 12 2016 9 26 ...
Page 126: ...P24AL P34AL Service Manual TABLES CHARTS 12 16 16 11 8 ...
Page 130: ...P24AL P34AL Service Manual INDEX 12 2016 12 4 ...
Page 131: ...Appendix A ...
Page 134: ......
Page 136: ...i ...
Page 137: ...ii ...
Page 138: ...1 ...
Page 139: ...2 ...
Page 140: ...3 ...
Page 141: ...4 ...
Page 142: ...5 ...
Page 143: ...6 ...
Page 144: ...7 ...
Page 145: ...8 ...
Page 146: ...9 ...
Page 147: ...10 ...
Page 148: ...11 ...