Predictika · Dairy farm equipment

An AI sales agent's bulk milk cooler quote, checked before it goes out

An AI sales agent prepares a quote for a farm's bulk milk cooler: the tank size, the refrigeration unit on each cooling circuit (OE or HiPerForm EVC, size and electrical supply), the refrigerant, the milk in the tank when cooling starts, the clearance under the cooler, and the refrigeration capacity and weight it states. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the tables in Paul Mueller's public Milk Cooler Dimensions and Capacities manual and returns a verdict, every reason and the figures it computed.

Scope: Paul Mueller dairy farm milk coolers, 500 to 8,000 gallons (18 listed tank sizes), with E-Star R-507 refrigeration units: evaporator circuits, unit size and type, power, legs and milk volume. See everything this validator covers

This validator models a bulk milk cooler with its refrigeration units, based on the tables in Paul Mueller's Milk Cooler Dimensions and Capacities manual (MC-275-9, revised July 7, 2015), not just the scenarios shown below.

  • Tank sizes — 500, 600, 800, 1,000, 1,350, 1,600 and 2,000 gallon single-circuit coolers; 800, 1,000, 1,350, 1,600, 2,000 and 2,700 gallon dual-circuit coolers; 3,000, 4,000 and 5,000 gallon triple-circuit coolers; and 6,700 and 8,000 gallon quad-circuit coolers. Each has its own number of refrigeration circuits, legs and approximate weight.
  • Refrigeration units — every circuit needs a unit and a circuit the cooler does not have must have none; sizes are the current 3.5, 5, 7.5 and 9 horsepower; the largest unit allowed on each evaporator depends on the cooler and on the unit type (OE with a mechanical expansion valve, or OH HiPerForm with electronic valve control, where a 5 horsepower unit on a 3.5 horsepower circuit is allowed only with the digital-scroll HiPerForm); single-phase supply is listed only for 3.5 and 5 horsepower units; the Btu per hour of each unit (rated at 30 degrees Fahrenheit suction and 100 degrees condensing) are added up and compared with the capacity the quote states.
  • Installation and milk — R-507 refrigerant (R-22 units have not been available since January 1, 2010), the clearance under the cooler against the standard leg range for its size, the milk volume against the tank capacity, and a milk volume below the gallons the manual lists to cover the bottom evaporator(s) and the agitator goes to a person.
  • Weight — the approximate weight the manual lists for the size, compared with the weight the quote states.

Any milk cooler quote that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (none are published, so this page shows no price build-up), the other cooler sizes and 2,000C-D and 4,000L models whose tables the manual does not complete, coolers built before 2009, R-22 and discontinued units, unit mixes with different types on different circuits, chillers, milk-load (Btu per milking) calculations, and installation, electrical and plumbing design.

The AI sales agentBuilds the cooler quote from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

7 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
The largest refrigeration unit allowed on each evaporator, by cooler and unit typeOnly with workarounds
Each of 18 tank sizes has one to four circuits, each with its own limit, and the limit changes with the unit type (a 5 horsepower unit passes on some circuits only as a HiPerForm). A rules-based CPQ needs a lookup table or a rule per tank, circuit and type, and the manual's next revision means editing them.		All circuits are compared with the published limits, whichever unit type is chosen, on every call.
Refrigeration capacity that adds up unit ratings by type, size and powerOnly with care
Each unit's Btu per hour depends on its type, its size and the electrical supply, and the total must be compared with the capacity the quote states.		The ratings are looked up, summed over the circuits that exist and compared with the stated figure on every call.
Circuits that exist for this cooler, and units that match themOnly with care
A single, dual, triple or quad cooler has a different set of circuits; a missing unit or a unit on a circuit that is not there is easy to miss.		The circuits of the chosen tank are derived, and a missing or extra unit is reported.
Weight and supply constraints stated in the quoteOnly with care
Stated figures are derived from the tank row, so a rule has to recompute them and compare.		The stated capacity and weight are fields in the request, compared with the computed ones.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the quote is saved or a step is completed, so a person often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1The side unit (left side unit on a triple or quad) is 5 horsepower; the recommended maximum for that evaporator with this unit type is 3.5 horsepower.
2The side unit (left side unit on a triple or quad) is 7.5 horsepower; the recommended maximum for that evaporator with this unit type is 5 horsepower.
3The bottom unit (left bottom unit on a quad) is 7.5 horsepower; the recommended maximum for that evaporator with this unit type is 5 horsepower.
4The bottom unit (left bottom unit on a quad) is 5 horsepower; the recommended maximum for that evaporator with this unit type is 3.5 horsepower.
5The bottom unit (left bottom unit on a quad) is 9 horsepower; the recommended maximum for that evaporator with this unit type is 7.5 horsepower.
6The right bottom unit is 9 horsepower; the recommended maximum for that evaporator with this unit type is 7.5 horsepower.
7The side unit (left side unit on a triple or quad) is 9 horsepower; the recommended maximum for that evaporator with this unit type is 7.5 horsepower.
8The right side unit is 9 horsepower; the recommended maximum for that evaporator with this unit type is 7.5 horsepower.
9This cooler has 4 refrigeration circuits and every circuit needs its own refrigeration unit; at least one circuit has none.
10A refrigeration unit is selected for a circuit this cooler does not have; it has 1 circuit.
11This cooler has 3 refrigeration circuits and every circuit needs its own refrigeration unit; at least one circuit has none.
12The current refrigeration unit charts list 3.5, 5, 7.5 and 9 horsepower units; a unit of another size is selected.
13The bottom unit (left bottom unit on a quad) is 10 horsepower; the recommended maximum for that evaporator with this unit type is 7.5 horsepower.
14Single-phase units are listed only for 3.5 and 5 horsepower; a unit of 7.5 horsepower is three-phase only.
15R-22 refrigeration units have not been available since January 1, 2010; current units use R-507.
16The plan puts 2,001 gallons in a 2,000 gallon tank.
17The requested clearance under the cooler of 10 inches is outside the standard leg range of 7 to 9 inches for this size.
18The requested clearance under the cooler of 6 inches is outside the standard leg range of 7 to 9 inches for this size.
19The requested clearance under the cooler of 6 inches is outside the standard leg range of 4 to 5 inches for this size.
20The requested clearance under the cooler of 9 inches is outside the standard leg range of 4 to 8 inches for this size.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Dual-circuit cooler, 2,000 gallons: A 2,000-gallon dual cooler with OE units on both circuits

    
The agent's request. Please quote a Paul Mueller 2,000-gallon dual-circuit milk cooler with OE (mechanical expansion valve) refrigeration units: a 5 HP on the bottom circuit, a 5 HP on the side circuit. The supply is 208-230 volt three-phase and the refrigerant is R-507. The tank holds 1,800 gallons of milk when cooling starts, the legs should give 8 inches of clearance under the cooler, and the quote states 112,000 Btu per hour of refrigeration and a cooler weight of 2,432 pounds. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Side unit above the evaporator maximum. The side unit (left side unit on a triple or quad) is 5 horsepower; the recommended maximum for that evaporator with this unit type is 3.5 horsepower.
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2. Dual-circuit cooler, 2,000 gallons: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Paul Mueller 2,000-gallon dual-circuit milk cooler with OH HiPerForm (electronic valve control) refrigeration units: a 5 HP on the bottom circuit, a 5 HP on the side circuit. The supply is 208-230 volt three-phase and the refrigerant is R-507. The tank holds 1,800 gallons of milk when cooling starts, the legs should give 8 inches of clearance under the cooler, and the quote states 117,992 Btu per hour of refrigeration and a cooler weight of 2,432 pounds. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Cooler summary. A cooler of 2,000 gallons with 2 refrigeration circuits; the unit ratings add up to 117,992 Btu per hour; 8 legs, about 2,432 pounds.
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3. Quad cooler, 6,700 gallons: A 6,700-gallon quad cooler with OE 9 horsepower bottom units

    
The agent's request. Please quote a Paul Mueller 6,700-gallon quad-circuit milk cooler with OE (mechanical expansion valve) refrigeration units: a 9 HP on the left bottom circuit, a 9 HP on the right bottom circuit, a 7.5 HP on the left side circuit, a 7.5 HP on the right side circuit. The supply is 460 volt three-phase and the refrigerant is R-507. The tank holds 5,000 gallons of milk when cooling starts, the legs should give 8 inches of clearance under the cooler, and the quote states 370,600 Btu per hour of refrigeration and a cooler weight of 7,324 pounds. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Bottom unit above the evaporator maximum. The bottom unit (left bottom unit on a quad) is 9 horsepower; the recommended maximum for that evaporator with this unit type is 7.5 horsepower.
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  • Right bottom unit above the evaporator maximum. The right bottom unit is 9 horsepower; the recommended maximum for that evaporator with this unit type is 7.5 horsepower.
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4. Quad cooler, 6,700 gallons: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Paul Mueller 6,700-gallon quad-circuit milk cooler with OH HiPerForm (electronic valve control) refrigeration units: a 9 HP on the left bottom circuit, a 9 HP on the right bottom circuit, a 7.5 HP on the left side circuit, a 7.5 HP on the right side circuit. The supply is 460 volt three-phase and the refrigerant is R-507. The tank holds 5,000 gallons of milk when cooling starts, the legs should give 8 inches of clearance under the cooler, and the quote states 390,426 Btu per hour of refrigeration and a cooler weight of 7,324 pounds. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Cooler summary. A cooler of 6,700 gallons with 4 refrigeration circuits; the unit ratings add up to 390,426 Btu per hour; 12 legs, about 7,324 pounds.
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5. Leg clearance and first milking: A 2,000-gallon dual cooler with 10-inch legs and a small first milking

    
The agent's request. Please quote a Paul Mueller 2,000-gallon dual-circuit milk cooler with OH HiPerForm (electronic valve control) refrigeration units: a 5 HP on the bottom circuit, a 3.5 HP on the side circuit. The supply is 208-230 volt three-phase and the refrigerant is R-507. The tank holds 120 gallons of milk when cooling starts, the legs should give 10 inches of clearance under the cooler, and the quote states 100,188 Btu per hour of refrigeration and a cooler weight of 2,432 pounds. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Leg clearance outside the standard range. The requested clearance under the cooler of 10 inches is outside the standard leg range of 7 to 9 inches for this size.
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  • Milk volume below evaporator coverage. 120 gallons of milk are below the 133 gallons the manual lists to cover the bottom evaporator(s) and the agitator; a person should confirm.
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6. Leg clearance and first milking: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Paul Mueller 2,000-gallon dual-circuit milk cooler with OH HiPerForm (electronic valve control) refrigeration units: a 5 HP on the bottom circuit, a 3.5 HP on the side circuit. The supply is 208-230 volt three-phase and the refrigerant is R-507. The tank holds 120 gallons of milk when cooling starts, the legs should give 9 inches of clearance under the cooler, and the quote states 100,188 Btu per hour of refrigeration and a cooler weight of 2,432 pounds. It is ready to send.

    
Verdict: Needs approval.

    
    
      
  • Milk volume below evaporator coverage. 120 gallons of milk are below the 133 gallons the manual lists to cover the bottom evaporator(s) and the agitator; a person should confirm.
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  • Cooler summary. A cooler of 2,000 gallons with 2 refrigeration circuits; the unit ratings add up to 100,188 Btu per hour; 8 legs, about 2,432 pounds.
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7. Leg clearance and first milking: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Paul Mueller 2,000-gallon dual-circuit milk cooler with OH HiPerForm (electronic valve control) refrigeration units: a 5 HP on the bottom circuit, a 3.5 HP on the side circuit. The supply is 208-230 volt three-phase and the refrigerant is R-507. The tank holds 150 gallons of milk when cooling starts, the legs should give 9 inches of clearance under the cooler, and the quote states 100,188 Btu per hour of refrigeration and a cooler weight of 2,432 pounds. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Cooler summary. A cooler of 2,000 gallons with 2 refrigeration circuits; the unit ratings add up to 100,188 Btu per hour; 8 legs, about 2,432 pounds.
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares a quote for a farm's bulk milk cooler: the tank size, the refrigeration unit on each cooling circuit (OE or HiPerForm EVC, size and electrical supply), the refrigerant, and more. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the tables in Paul Mueller's public Milk Cooler Dimensions and Capacities manual and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please quote a Paul Mueller 6,700-gallon quad-circuit milk cooler. The supply is 460 volt three-phase and the refrigerant is R-507. The rest of the request is on screen. The tank holds 5,000 gallons of milk when cooling starts, the legs should give 8 inches of clearance under the cooler, and the quote states 370,600 Btu per hour of refrigeration and a cooler weight of 7,324 pounds.
    4. 
      
  4. Before it goes out, the agent calls the validator.
    5. 
      
  5. Blocked, with two findings, all in one answer. The bottom unit (left bottom unit on a quad) is 9 horsepower; the recommended maximum for that evaporator with this unit type is 7.5 horsepower. The right bottom unit is 9 horsepower; the recommended maximum for that evaporator with this unit type is 7.5 horsepower.
    6. 
      
  6. The validator returned two blocking findings in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
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  7. What this shows: for the largest refrigeration unit allowed on each evaporator, by cooler and unit type, a rules-based CPQ can do this only with workarounds.
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  8. Now the agent resubmits.
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  9. The corrected request. It changes the refrigeration unit type to OH HiPerForm (electronic valve control) and the stated refrigeration capacity as to 390,426 Btu per hour.
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  10. It calls the validator again.
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  11. This time the validator clears it.
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  12. Both earlier findings are cleared, and the validator's figure matches the quote.
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  13. Two problems caught in one call, fixed in one pass, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer. Now you can try the other scenarios yourself.
    14.