10TA Service Manual
SERVICE OPERATIONS
4/28/14
9-24
Technical Service Bulletin
No. 88-5
All Models
Subject: Water Conditioning For Ice Cube Machines
The quality of the ice produced by a commercial ice cube machine can only be as high as the quality
of the water which is used. Water which contains turbidity or sediment or which has a high
concentration of dissolved minerals or gases will produce cloudy or opaque ice.
Ion exchange (zeolite) softening is used to advantage in many cases, as the softener removes iron
and most forms of turbidity, and also prevents scale formation in the ice machines. However,
softening the water by ion exchange does not reduce the concentration of minerals. In addition, most
machines require a considerable blowdown to waste to prevent the buildup of the total dissolved
solids and thus a considerable amount of softened water will be wasted.
All the sulfates, chlorides, and the sodium carbonate (listed below) have in general the same effect
on the appearance of raw water ice and therefore, in this rough tabulation, can be grouped together.
Generally, the sodium carbonates can be considered 1 1/4 times as objectionable as the sulfates, and
the chlorides about 3/4 as objectionable as the sulfates. Therefore, total the sulfates and chlorides
separately and apply the factors:
Calcium Sulfate
Calcium Chloride
Magnesium Sulfate
Magnesium Chloride
Sodium Sulfate
Sodium Chloride
Sodium Carbonate
Total Sulfates x 1.0
=
__________
Total Chlorides x 0.75=
__________
Sodium Carbonate x 1.25
=
__________
Sum Total
=
__________
Dissolved solids below 171 ppm (10 grains per gallon) produces first quality ice, 256 ppm (15
g.p.g.) good quality ice, and 342 ppm (20 g.p.g.) an ice that is still marketable. If dissolved solids
are between 342 ppm and 684 ppm (40 g.p.g.), acceptable ice quality ice is questionable, over 684
ppm, marketable ice cannot be expected.
When cloudy or opaque is produced because of the water quality, it is suggested that the water be
analyzed by a reputable laboratory and their advice be followed.
Vogt Ice L.L.C.
Louisville, KY
Summary of Contents for P18FXT
Page 4: ...Vogt Tube Ice Machines Installation Service Manual and Parts Catalog 12A4171M08 10TA Model ...
Page 10: ...10TA Service Manual TABLE OF CONTENTS vi BLANK ...
Page 20: ...10TA Service Manual INTRODUCTION 4 14 14 1 10 BLANK ...
Page 40: ...10TA Service Manual INSTALLING YOUR TUBE ICE MACHINE 4 14 14 3 18 BLANK PAGE ...
Page 50: ...10TA Service Manual START UP AND OPERATION 4 14 14 5 6 BLANK ...
Page 60: ...10TA Service Manual ELECTRICAL CONTROLS 4 14 14 6 10 BLANK ...
Page 112: ...10 8 10TA Service Manual OPTIONS AND ACCESSORIES BLANK ...
Page 120: ...10TA Service Manual TABLES CHARTS 7 2 14 11 8 BLANK ...