P24A & P34A Service Manual
TROUBLESHOOTING
12/17/12
8-6
Symptom: Low ice capacity.
Suspicions of low ice capacity should be confirmed by accurate calculations of actual ice product.
Much weight can be lost by melting and off fall through augers and other ice handling equipment.
1. Time the total freeze and thaw cycle for the cycle which is to be caught and weighed.
2. Catch all the ice at the ice discharge opening of the machine.
3. Weight the total amount of ice caught.
Lbs. ice per cycle
Cycle time minutes
X
1440 =
_____ lbs. production per 24 hours
More than one cycle should be caught and weighed to get an accurate average.
Possible Cause
Possible Remedy
Inadequate water for ice making
Water pressure of 40 psig minimum is required
to assure proper water supply. Check water
pressure. Check for a restriction in the incoming
line or at the make-up water float valve.
Water distributors may be stopped up
Check distributors and clean orifices as needed.
Freezer pressure switch or thaw timer out of
adjustment
Check hole size in Tube-Ice (See TABLE 7-2).
Crushed ice should be 3/16”-1/4” thick. Check
and adjust thawing time. Thawing should be 30
seconds longer than it takes for all the ice to
clear the freezer.
Excessive ice chips in the water tank, causing
short cycling
Check incoming water temperature (45
°
F
minimum). Check flushing valve to make sure
ice chips are being melted and flowing out the
tank overflow during the harvest cycle.
Compressor running unloaded or not pumping
full volume
Check compressor motor amp draw. Check for
belt slippage and tighten as needed. Check for
leaking compressor suction or discharge valves.
Refer to your compressor manual. See other
related symptoms.
Restriction in the refrigerant liquid line or float
switch not operating properly
Check for a partially closed valve or an
obstruction at the strainer, solenoid valve, or
hand expansion valve. The liquid line will
normally have frost on the downstream side of a
restriction, especially as the suction pressure
decreases.
Low refrigerant charge, causing re-freeze
Check the receiver gage glass mark for the
proper level. Check for and repair leaks. Add
refrigerant.
Warm make-up water for ice making
Capacity of the machine is proportional to ice
making water temperature. Warmer water will
reduce the ice making capacity. Refer to Section
10, Capacity Table. Check float adjustment and
water tank drain valve.
Summary of Contents for TUBE-ICE P-24A
Page 1: ...12 20 12 P 24A P 34A TUBE ICE MACHINE Service Manual 5000 ...
Page 4: ...12 20 12 ...
Page 6: ...12 20 12 ...
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Page 16: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 4 FIGURE 1 1 P24A Front Side Control Panel ...
Page 17: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 5 FIGURE 1 2 P24A Right Side ...
Page 18: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 6 FIGURE 1 3 P24A Back Side ...
Page 19: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 7 FIGURE 1 4 P24A Left Side ...
Page 20: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 8 FIGURE 1 5 P34A Front Side ...
Page 21: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 9 FIGURE 1 6 P34A Right Side ...
Page 22: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 10 FIGURE 1 7 P34A Back Side ...
Page 23: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 11 FIGURE 1 8 P34A Left Side Control Panel ...
Page 24: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 12 FIGURE 1 9 P24A Compressor Diagram ...
Page 28: ...P24A P34A Service Manual RECEIPT OF YOUR TUBE ICE MACHINE 12 26 12 2 4 ...
Page 115: ...P24A P34A Service Manual TABLES CHARTS 12 18 12 11 1 11 Tables Charts ...
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Page 146: ...P24A P34A Service Manual INDEX 12 26 12 12 4 ...