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Mueller SENTRY II Installation Operation & Maintenance

Mueller SENTRY II
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Section 3.0 - Electrical Wiring -
Continued
Figure 18—Electrical Schematic - Factory Wiring (Enlarged Schematic Attached in Back) . . . . . . . . . . .20
Figure 19—Relay and Switch Contact Positions (For Sentry II with Water Works Box) . . . . . . . . . . . . . .21
3.2 PLC Electrical Troubleshooting (Input and Output Data) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Table 1—PLC Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Figure 20—Electrical Schematic - PLC (For Sentry II Models with Water Works Box) . . . . . . . . . . . . . . .23
Figure 21—Electrical Schematic - Water Works Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Section 4.0 - Sentry II Temperature Control
4.1 Sentry II Temperature Control and Thermocouple Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
4.2 Sentry II Thermocouple Sensor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Figure 22—Sentry II Thermocouple Sensor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
4.3 Sentry II Thermocouple Sensor Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Figure 23—Sentry II Thermocouple Sensor Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Figure 24—Sentry II Thermocouple - Temperature Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
4.4 Important Thermocouple Splicing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
4.5 Sentry II Temperature Control Calibration Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
4.6 Sentry II Temperature Control Lock and Unlock Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Figure 25—Sentry II Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
4.7 Sentry II Temperature Control Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
4.8 Sentry II Temperature Control Set Point Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
4.9 Sentry II Temperature Control Unit of Measure (Fahrenheit or Celsius) . . . . . . . . . . . . . . . . . . . . . . . .30
Section 5.0 - Chemical Dosing with Sentry II Water Works Box
5.1 Determining Chemical Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
5.2 Chemical Cautions (Additional Cautions are Listed in Section 2.15) . . . . . . . . . . . . . . . . . . . . . . . . . . .31
5.3 Determining Water Usage Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Figure 26—PLC Fill-Time Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Table 2—Minimum Water Requirements (Per Cycle) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
5.4 Determining Actual Water Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Table 3—Calculated Water Usage (Fill-Time/Supply Pressure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
5.5 Wash Cycle Timing Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Chart 1—Detergent Wash or Complete Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Chart 2—Acid Cycle or Sanitize Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Section 6.0 - Sentry II PLC Programming
6.1 Sentry II Programmable Features, Options, and Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . .36
6.2 Sentry II - MTA to PLC Programming Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
6.3 Sentry II Service Reference Form, Programmable Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Section 7.0 - Operating Instructions
7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Figure 27—Sentry II Operating Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
7.2 Cool-Off-Wash Rotary Selector Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
7.3 Cooling Bottom Units Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
7.4 Cooling All Units Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
7.5 Pre-Start Cooling Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
7.6 Pre-Start Agitator Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
7.7 Detergent Cycle Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
7.8 Acid Cycle Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
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Mueller SENTRY II Specifications

General IconGeneral
BrandMueller
ModelSENTRY II
CategoryController
LanguageEnglish

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