05TA Service Manual
SERVICE OPERATIONS
8/13/01
9-3
It is preferable that the freezing cycle be such that a small diameter hole remains in the center of the
ice cylinder. (1/16” diameter for 7/8” diameter ice, 1/8” diameter for 1 1/8” diameter ice, 1/4”
diameter for 1 3/8” diameter ice) This insures that the freezing cycle is not extended unnecessarily
and eliminates a possible opaque core in the center of the ice.
When crushed ice is produced, the freezer pressure switch (FPS) (FIGURE 9-1) should be set to
produce ice having a wall thickness of approximately 3/16”.
High-Low Pressure Switch.
The high-low pressure switch (HPS) (FIGURE 9-2) is a two pole dual
function switch. Located in the machine mounted to the frame near the compressor. It protects the
machine from possible damage due to abnormal pressure during operation.
! CAUTION !
When this switch causes the machine to stop, the cause should be
identified and corrected before resuming normal operation.
! CAUTION !
The
LOW
pressure cut-in should be set at 40 psig and the cutout set at 20 psig for R-22
The
LOW
pressure cut-in should be set at 52 psig and the cutout set at 28 psig for R-404a.
After tripping at the cutout setting, the switch will reset automatically when the pressure rises to the
cut-in setting.
The
HIGH
pressure cutout should be set at 300 psig for R-22 and 350 psig for R-404a. After
tripping, reset the switch manually.
FIGURE 9-2
High-Low Pressure Switch
If it becomes necessary to install a new high/low pressure switch, the following procedure is
recommended for its adjustment:
Summary of Contents for TUBE-ICE 05TA
Page 4: ...Vogt Tube Ice Machines Installation Service Manual and Parts Catalog 12A4171M06 05TA Model ...
Page 82: ...05TA Service Manual SERVICE OPERATIONS 8 13 01 9 18 FIGURE 9 10 Cutter Drive Parts ...
Page 95: ...05TA Service Manual OPTIONS AND ACCESSORIES 8 13 01 10 11 FIGURE 10 3 Control Panel Parts ...
Page 97: ...05TA Service Manual OPTIONS AND ACCESSORIES 8 13 01 10 13 FIGURE 10 4 Wiring Schematic ...
Page 103: ...05TA Service Manual TABLES CHARTS 8 14 01 11 1 11 Tables Charts ...