10TA Service Manual
SERVICE OPERATIONS
4/28/14
9-4
RESET BUTTON
RANGE ADJUSTING SCREW
SET AT 40 PSIG (R-22)
SET AT 52 PSIG (R-404A)
(CW RAISES SETTING)
HIGH PRESSURE ADJUSTMENT
SET AT 300 PSIG (R-22)
SET AT 350 PSIG (R-404A)
(CW RAISES SETTING)
DIFFERENTIAL FACTORY SET
DIFFERENTIAL ADJUSTING SCREW
SET AT 20 PSIG
(CW RAISES SETTING)
LOW PRESSURE
TEST CONNECTION
HIGH PRESSURE
TEST CONNECTION
Capillary Bypass
The capillary bypass is located directly following the “A2” solenoid. The “A2”
solenoid should be energized (Open) during the entire freeze cycle. The function of the capillary
bypass is to meter a set minimum amount of refrigerant to the freezer during the freeze cycle,
thereby reducing cycling of the float switch.
High-Low Pressure Switch
The high-low pressure switch (HPS) (FIGURE 9-4) 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.
NOTE: 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 9-4
High-Low Pressure Switch
If it becomes necessary to install a new high/low pressure switch, the following procedure is
recommended for its adjustment:
Turn the adjusting screws clockwise to raise the pressure setting. Turn counter-clockwise to lower
the setting. Adjust the switch to the indicated pressure settings and test with an accurate gage to be
sure the switch functions properly before installation.
CE Approved machine
Vogt Part #: 12A2117D01CE
Vogt Part #:
Summary of Contents for P18FXT
Page 4: ...Vogt Tube Ice Machines Installation Service Manual and Parts Catalog 12A4171M08 10TA Model ...
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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 ...
