Predictika · Commercial laundry

An AI sales agent's Little Giants installation, checked before it goes out

An AI sales agent prepares an installation quote for Miele Professional Little Giants machines at a fictional laundry site: a PWM 508 washing machine, a PDR 508 EL vented dryer, or the two stacked, with the electrical supply, water, drain, mounting, delivery access, vent duct and the total connected load it states. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the figures in the public Miele installation plans and returns a verdict, every reason and the figures it computed.

Scope: Miele Little Giants PWM 508 washing machine, PDR 508 EL dryer and the washer-dryer stack: electrical supply by country, water, drain, mounting, access, vent duct and control options. See everything this validator covers

This validator models the installation of one Little Giants washing machine, dryer or washer-dryer stack at a time, based on the figures in the public Miele installation plans and fact sheet, not just the scenarios shown below.

  • Electrical supply by country — the supply must be one the plan lists for the country (the plan gives its own lists for the general "other countries", Great Britain, Australia, Switzerland, Denmark and Sweden, Belgium and Norway), the supply cable must meet the minimum cross-section for that supply, and a supply that is not the country's standard goes to a person because Miele Customer Service or an authorized dealer must convert it.
  • Water and drain — water flow (10 liters a minute with hot water, 11 with cold only), flow pressure (100 to 1000 kPa), hot water at most 70 degrees Celsius, the DV washer's drain valve and vented line, the DP washer's drain pump limits (1000 mm without and 1600 mm with the replacement pump) and the 500 cm hose limit.
  • Mounting, access and room — anchoring and minimum size of a site plinth, no stack on a Miele plinth, the floor loads in operation, the smallest opening on the delivery path, room temperature (+2 to +35 degrees Celsius) and the side gap between machines.
  • Dryer vent duct and stack — duct diameter and pressure loss, a non-return valve on every dryer on a common duct, a specialist's calculation for shared ducts and fresh air for the exhaust air (these go to a person), the stacking kit and its service fitting, and the floor under a stack, for which the plans give no load.
  • Control options and stated load — liquid dosing pumps need the XCI-Box (6 at most), payment systems need an XCI-Box or XCI-AD, peak-load connections need the XCI-Box, and the total connected load the quote states must equal the one computed from the selected supplies.

Any Little Giants installation that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (Miele publishes no list prices for these machines, so this page shows no price build-up), other Miele models, programs and operating costs, and conditions on site that the installation plans do not state.

The AI sales agentBuilds the installation 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
Supplies that depend on the country (14 washer and 18 dryer rows)Only with workarounds
Each country has its own list of supplies, and each supply has its own minimum cable and connected load. A rules-based CPQ needs a compatibility table or one rule per row, and every plan revision means editing them.
Country and supply arrive in one request and are matched to the listed rows on every call.
Total connected load the quote statesOnly with care
The total is derived from the chosen supplies and the machines in the order, so a rule has to recompute it and compare, and for some supplies the plan gives a range instead of a figure.
The stated load is a field in the request, compared with the computed one on every call.
Washer and dryer limits that depend on the variantOnly with care
The DV and DP washers have different drain rules, and the replacement pump changes the limit, so the same height passes in one case and fails in another.
The variant, the height and the accessory are compared together, in any order.
Stacks, approvals and visits by Miele serviceOnly with care
Some items are not errors but need a person: a service visit, a specialist calculation, a floor the plans give no load for.
Each is returned as a separate approval, apart from the blocking findings.
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 selected washer supply is not the standard for this country; Miele Customer Service or an authorized dealer must convert it, and a person should confirm that visit.
2The washer supply cable cross-section is 1.5 square millimeters; the selected supply needs at least 2.5.
3The selected washer electrical supply is not one the Miele installation plan lists for this country.
4The water supply gives 9 liters a minute; the washer needs 10.
5The water supply gives 10 liters a minute; the washer needs 11.
6The water flow pressure is 90 kPa; the washer needs 100 to 1,000 kPa.
7The hot water supply is 71 degrees Celsius; the washer accepts at most 70.
8The DV washer has a drain valve and no drain pump, and the drain outlet is 200 mm above the machine base.
9The drain outlet is 1,200 mm above the machine base; above 1,000 mm the DP washer needs the replacement drain pump accessory.
10The DP washer pumps to at most 1,600 mm; the drain outlet is 1,700 mm above the machine base.
11The DV washer needs a vented drain line; the line is not vented and no ventilation mounting kit is quoted.
12The drain hose is 600 cm long; it can be extended to 500 cm at most.
13A machine on a concrete or masonry plinth must be anchored to it; the quote has no anchoring.
14The site plinth is 550 by 700 mm; the minimum footprint is 600 by 650 mm.
15The site floor is rated for 2,819 N; the machine needs 2,820 N in operation.
16The smallest opening on the delivery path is 880 mm high by 900 mm wide; the machine needs at least 900 by 605 mm without packaging.
17The smallest opening on the delivery path is 2,000 mm high by 600 mm wide; the machine needs at least 900 by 605 mm without packaging.
18The installation room is at 1 degree Celsius; the machines need +2 to +35.
19The installation room is at 36 degrees Celsius; the machines need +2 to +35.
20The side gap between machines is 19 mm; the plan requires at least 20 mm.

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. Washer-dryer stack: A washer-dryer stack on a Miele plinth

The agent's request. Please quote one PWM 508 DP washing machine with a PDR 508 EL vented dryer stacked on it for a site in one of the 'other countries' on the installation plan's general list. The washer is on the 2N 400 V supply with a 16 A fuse and its supply cable is 1.5 square millimeters. Hot and cold water are connected, with 15 liters a minute at 300 kPa flow pressure and hot water at 60 degrees Celsius. The drain outlet is 800 mm above the machine base, with a 150 cm drain hose. The dryer is on the 3N 400 V supply with a 10 A fuse and its supply cable is 1.5 square millimeters. Its vent duct is 100 mm across and loses 200 Pa. Fresh air replaces the exhaust air. The machines stand on a Miele plinth. The floor is rated for 5,000 N, the smallest opening on the delivery path is 2,000 mm high by 900 mm wide, the room is at 20 degrees Celsius and the gap between machines is 50 mm. The quote states a total connected load of 5,500 W. It is ready to send.

Verdict: Blocked.

  • Stack not allowed on a Miele plinth. A washer-dryer stack must not be installed on a Miele plinth.
  • Stack needs the stacking kit. A washer-dryer stack needs the washer-dryer stacking kit, and the quote has none.
  • Stated connected load does not match. The quote states a total connected load of 5,500 W; the selected supplies give 11,900 W.
  • Stack floor load to confirm. The installation plans do not give a floor load for a washer-dryer stack; a person should confirm the floor can carry it.

2. Washer-dryer stack: The agent resubmits after fixing the errors

The agent's request. Please quote one PWM 508 DP washing machine with a PDR 508 EL vented dryer stacked on it for a site in one of the 'other countries' on the installation plan's general list. The washer is on the 2N 400 V supply with a 16 A fuse and its supply cable is 1.5 square millimeters. Hot and cold water are connected, with 15 liters a minute at 300 kPa flow pressure and hot water at 60 degrees Celsius. The drain outlet is 800 mm above the machine base, with a 150 cm drain hose. The dryer is on the 3N 400 V supply with a 10 A fuse and its supply cable is 1.5 square millimeters. Its vent duct is 100 mm across and loses 200 Pa. Fresh air replaces the exhaust air. The washer-dryer stacking kit is included. The machines stand on their own feet. The floor is rated for 5,000 N, the smallest opening on the delivery path is 2,000 mm high by 900 mm wide, the room is at 20 degrees Celsius and the gap between machines is 50 mm. The quote states a total connected load of 11,900 W. It is ready to send.

Verdict: Needs approval.

  • Stacking kit must be fitted by Miele service. The stacking kit must be fitted by Miele Customer Service or an authorized Miele service technician; a person should confirm that visit.
  • Stack floor load to confirm. The installation plans do not give a floor load for a washer-dryer stack; a person should confirm the floor can carry it.
  • Installation summary. The selected supplies give a total connected load of 11,900 W.

3. Washer-dryer stack: The agent resubmits after fixing the errors

The agent's request. Please quote one PWM 508 DP washing machine with a PDR 508 EL vented dryer stacked on it for a site in one of the 'other countries' on the installation plan's general list. The washer is on the 2N 400 V supply with a 16 A fuse and its supply cable is 1.5 square millimeters. Hot and cold water are connected, with 15 liters a minute at 300 kPa flow pressure and hot water at 60 degrees Celsius. The drain outlet is 800 mm above the machine base, with a 150 cm drain hose. The dryer is on the 3N 400 V supply with a 10 A fuse and its supply cable is 1.5 square millimeters. Its vent duct is 100 mm across and loses 200 Pa. Fresh air replaces the exhaust air. The washer-dryer stacking kit is included. Fitting by a Miele service technician has been arranged. The site engineer has confirmed the floor can carry the stack. The machines stand on their own feet. The floor is rated for 5,000 N, the smallest opening on the delivery path is 2,000 mm high by 900 mm wide, the room is at 20 degrees Celsius and the gap between machines is 50 mm. The quote states a total connected load of 11,900 W. It is ready to send.

Verdict: Allowed.

  • Installation summary. The selected supplies give a total connected load of 11,900 W.

4. Electrical supply and water: A washer for a site in Belgium

The agent's request. Please quote one PWM 508 DP washing machine for a site in Belgium. The washer is on the 2N 400 V supply with a 16 A fuse and its supply cable is 1.5 square millimeters. Hot and cold water are connected, with 9 liters a minute at 300 kPa flow pressure and hot water at 60 degrees Celsius. The drain outlet is 800 mm above the machine base, with a 150 cm drain hose. The machine stands on their own feet. The floor is rated for 5,000 N, the smallest opening on the delivery path is 2,000 mm high by 900 mm wide, the room is at 20 degrees Celsius and the gap between machines is 50 mm. The quote states a total connected load of 5,500 W. It is ready to send.

Verdict: Blocked.

  • Washer supply cable too small. The washer supply cable cross-section is 1.5 square millimeters; the selected supply needs at least 2.5.
  • Water flow too low. The water supply gives 9 liters a minute; the washer needs 10.

5. Electrical supply and water: The agent resubmits after fixing the errors

The agent's request. Please quote one PWM 508 DP washing machine for a site in Belgium. The washer is on the 2N 400 V supply with a 16 A fuse and its supply cable is 2.5 square millimeters. Hot and cold water are connected, with 12 liters a minute at 300 kPa flow pressure and hot water at 60 degrees Celsius. The drain outlet is 800 mm above the machine base, with a 150 cm drain hose. The machine stands on their own feet. The floor is rated for 5,000 N, the smallest opening on the delivery path is 2,000 mm high by 900 mm wide, the room is at 20 degrees Celsius and the gap between machines is 50 mm. The quote states a total connected load of 5,500 W. It is ready to send.

Verdict: Allowed.

  • Installation summary. The selected supplies give a total connected load of 5,500 W.

6. Dryer vent duct: A dryer on a shared vent duct

The agent's request. Please quote one PDR 508 EL vented dryer for a site in one of the 'other countries' on the installation plan's general list. The dryer is on the 3N 400 V supply with a 10 A fuse and its supply cable is 1.5 square millimeters. Its vent duct is 90 mm across and loses 200 Pa. The duct is shared with other dryers. The machine stands on their own feet. The floor is rated for 5,000 N, the smallest opening on the delivery path is 2,000 mm high by 900 mm wide, the room is at 20 degrees Celsius and the gap between machines is 50 mm. The quote states a total connected load of 6,400 W. It is ready to send.

Verdict: Blocked.

  • Dryer vent duct too narrow. The dryer vent duct is 90 mm across; the exhaust connection is 100 mm and the duct must not be reduced.
  • Shared vent duct needs a non-return valve on each dryer. The dryer shares a vent duct with others; every dryer on a common duct needs its own non-return valve.
  • Shared vent duct needs a specialist calculation. Several dryers on one vent duct call for a detailed calculation by a suitable specialist; a person should confirm it was done.
  • Fresh air intake to confirm. The dryer needs fresh air to replace the exhaust air; a person should confirm how the room gets it.

7. Dryer vent duct: The agent resubmits after fixing the errors

The agent's request. Please quote one PDR 508 EL vented dryer for a site in one of the 'other countries' on the installation plan's general list. The dryer is on the 3N 400 V supply with a 10 A fuse and its supply cable is 1.5 square millimeters. Its vent duct is 100 mm across and loses 200 Pa. The duct is shared with other dryers. Each dryer on it has its own non-return valve. A specialist has calculated the duct. Fresh air replaces the exhaust air. The machine stands on their own feet. The floor is rated for 5,000 N, the smallest opening on the delivery path is 2,000 mm high by 900 mm wide, the room is at 20 degrees Celsius and the gap between machines is 50 mm. The quote states a total connected load of 6,400 W. It is ready to send.

Verdict: Allowed.

  • Installation summary. The selected supplies give a total connected load of 6,400 W.

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 an installation quote for Miele Professional Little Giants machines at a fictional laundry site: a PWM 508 washing machine, a PDR 508 EL vented dryer, the two stacked. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the figures in the public Miele installation plans and returns a verdict, every reason and the figures it computed.
  2. I will start with the first request by the agent.
  3. The agent says. Please quote one PWM 508 DP washing machine. The washer is on the 2N 400 V supply with a 16 A fuse and its supply cable is 1.5 square millimeters. The rest of the request is on screen. The quote states a total connected load of 5,500 W.
  4. Before it goes out, the agent calls the validator.
  5. Blocked, with three findings and one approval, all in one answer. A washer-dryer stack must not be installed on a miele plinth. A washer-dryer stack needs the washer-dryer stacking kit, and the quote has none. The quote states a total connected load of 5,500 W; the selected supplies give 11,900 W.
  6. The validator returned three blocking findings and one approval 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.
  7. What this shows: for total connected load the quote states, a rules-based CPQ is error-prone for this.
  8. Now the agent resubmits.
  9. The corrected request. It changes the mounting to own feet and the stated total connected load as to 11,900 W. It sets the stacking kit included to yes.
  10. It calls the validator again.
  11. Not blocked, but held for a person.
  12. The three blocking findings are cleared; two approvals remain for a person: stacking kit must be fitted by Miele service and stack floor load to confirm.
  13. The agent resubmits once more.
  14. The revised request. It sets the fitting by a Miele service technician arranged to yes and the floor confirmed to carry the stack to yes.
  15. It calls the validator once more.
  16. This time the validator clears it.
  17. Both earlier findings are cleared.
  18. Four problems caught in one call, fixed in two passes, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer.