Predictika · Electric shower installation: model, power rating, circuit protection, cable, water supply and site
An AI sales agent prepares the specification for installing a Triton electric shower in a customer's bathroom: the model and power rating, the circuit breaker and cable, the fittings on the circuit, and the mains water supply at the site. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the rules in Triton's published installation guides and returns a verdict, every reason and the figures it computed.
This validator models installation specifications for eight Triton electric shower models covered by the installation guides listed below, not just the scenarios shown on this page.
Any installation specification for these eight models that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (Triton's retail prices vary by variant and are not modeled, so this validator produces no price build-up or line-item quote), DuElec, UNIQ, ENlight and ENVi kits and other Triton products, power showers, accessories, finishes, and installation work beyond what the guides state.
7 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch
Illustrative agent statement. The validator receives the structured request below.
Proposing agent: AI sales agent (scripted)
Before sending, the agent must call Recorded run
What this means
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 caught | Typical rules-based CPQ | Predictika |
|---|---|---|
| Circuit breaker that depends on the rating | Only with care The breaker size is a lookup on the rating, and some ratings allow a range, so a rule per rating has to be written and kept in step with the guide. | The breaker is checked against the minimum and maximum for the chosen rating on every call. |
| Cable that must carry the breaker current | Only with workarounds The current a cable carries depends on its size and how it is installed, so the check needs a table across two choices, and it is easy to leave out when only the cable size is validated. | Size and installation method are looked up together and compared with the breaker rating. |
| Ratings that only some models are made in | Only with care Each model offers a different range of ratings, so every model needs its own rule that a rep can bypass by typing a different rating. | The model's range is looked up and the rating is checked against it. |
| Water limits that change with the rating and model | Only with workarounds Minimum pressure and flow change at 10.5 kW and the inlet temperature range changes by model, so the rules interlock across three choices. | Rating and model set the limits, and the site's pressure, flow and temperature are checked against them together. |
| Stated figures against the rating | Only with care A stated 230 V rating or minimum flow is a free-entry field; a rule can compare it with the rating, but only if someone writes and maintains that lookup. | The stated figures travel with the specification and are compared with the computed ones on every call. |
| Every problem returned in one answer | Only with workarounds Rules tend to fire as the quote is saved or a step is completed, so a rep often fixes one error and meets the next. | All findings come back together, whatever order the choices arrived in. |
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.
| 1 | The selected model is not made as a 10.5 kW shower; it is offered from 8.5 kW to 9.5 kW. |
| 2 | The selected model is not made as a 7.5 kW shower; it is offered from 8.5 kW to 10.5 kW. |
| 3 | The running mains pressure is 149 kPa, below the 150 kPa this rating needs. |
| 4 | The mains flow is 10 litres per minute, below the 11 litres per minute this rating needs. |
| 5 | The running mains pressure is 99 kPa, below the 100 kPa this rating needs. |
| 6 | The mains flow is 7 litres per minute, below the 8 litres per minute this rating needs. |
| 7 | The static mains pressure is 1,001 kPa, above the 1,000 kPa (10 bar) maximum. |
| 8 | The inlet water temperature is 4 degrees C, outside the 5 to 28 degrees C this model accepts. |
| 9 | The inlet water temperature is 26 degrees C, outside the 5 to 25 degrees C this model accepts. |
| 10 | Electric showers need a mains pressure cold water supply; a tank-fed supply is not suitable. |
| 11 | The shower is not suitable for mounting in a steam room or steam cubicle. |
| 12 | The circuit breaker is 32 A, below the 40 A this rating needs. |
| 13 | The circuit breaker is 50 A, above the 45 A the installation guide gives for this rating. |
| 14 | The circuit breaker is 45 A, above the 40 A the installation guide gives for this rating. |
| 15 | The 10 mm² cable carries 43 A when installed this way, less than the 45 A circuit breaker. |
| 16 | The guide strongly recommends at least 10 mm² cable throughout; this quote uses 6 mm², so an electrician should confirm it. |
| 17 | The 6 mm² cable carries 38 A when installed this way, less than the 40 A circuit breaker. |
| 18 | A 30 mA residual current device is required on every electric shower circuit. |
| 19 | The shower must be on its own independent circuit, not a ring main, spur, socket, lighting or cooker circuit. |
| 20 | A 45 A double pole isolating switch with a 3 mm contact gap in both poles is required in the circuit. |
| 21 | The consumer unit main switch is 63 A; the guide requires 80 A or above. |
| 22 | The consumer unit has no spare fuse way, so a new consumer unit may be needed; an electrician should assess it. |
| 23 | For a shower rated above 9 kW the guide advises contacting the local electricity supply company; a person should confirm it has been done. |
| 24 | The water hardness is 201 ppm, above 200 ppm, so a scale inhibitor may be needed; a person should contact the manufacturer. |
| 25 | The quote states a 230 V rating of 9.6 kW, but this rating delivers 8.7 kW at 230 V. |
| 26 | The quote states a minimum flow of 8 litres per minute, but this rating needs 11 litres per minute. |
| 27 | The water hardness is 250 ppm, above 200 ppm, so a scale inhibitor may be needed; a person should contact the manufacturer. |
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.
The agent's request. Please specify the installation of one Triton Amala electric shower rated 10.5 kW at 240 V for a customer of Kestrel Plumbing and Heating. It is on a 45 A circuit breaker with 10 mm² cable run in an insulated wall, with a 30 mA RCD, its own independent circuit, a 45 A double pole isolating switch and a spare fuse way, on a consumer unit with a 100 A main switch; the local electricity supply company has been contacted. The site has a mains cold water supply at 200 kPa running pressure, 12 litres per minute, 500 kPa static pressure, 12 degrees C inlet temperature and 100 ppm water hardness; the shower is for a bathroom, not a steam room. The specification states a 230 V rating of 9.6 kW and a minimum mains flow of 8 litres per minute. It is ready to send.
Verdict: Blocked.
The agent's request. Please specify the installation of one Triton Danzi electric shower rated 10.5 kW at 240 V for a customer of Kestrel Plumbing and Heating. It is on a 45 A circuit breaker with 16 mm² cable run in an insulated wall, with a 30 mA RCD, its own independent circuit, a 45 A double pole isolating switch and a spare fuse way, on a consumer unit with a 100 A main switch; the local electricity supply company has been contacted. The site has a mains cold water supply at 200 kPa running pressure, 12 litres per minute, 500 kPa static pressure, 12 degrees C inlet temperature and 100 ppm water hardness; the shower is for a bathroom, not a steam room. The specification states a 230 V rating of 9.6 kW and a minimum mains flow of 11 litres per minute. It is ready to send.
Verdict: Allowed.
The agent's request. Please specify the installation of one Triton T80Z Fast-Fit electric shower rated 9.5 kW at 240 V for a customer of Kestrel Plumbing and Heating. It is on a 32 A circuit breaker with 6 mm² cable run clipped direct, with its own independent circuit and a spare fuse way, on a consumer unit with a 100 A main switch; the local electricity supply company has been contacted. The site has a mains cold water supply at 200 kPa running pressure, 12 litres per minute, 500 kPa static pressure, 12 degrees C inlet temperature and 100 ppm water hardness; the shower is for a bathroom, not a steam room. The specification states a 230 V rating of 8.7 kW and a minimum mains flow of 11 litres per minute. It is ready to send.
Verdict: Blocked.
The agent's request. Please specify the installation of one Triton T80Z Fast-Fit electric shower rated 9.5 kW at 240 V for a customer of Kestrel Plumbing and Heating. It is on a 40 A circuit breaker with 6 mm² cable run clipped direct, with a 30 mA RCD, its own independent circuit, a 45 A double pole isolating switch and a spare fuse way, on a consumer unit with a 100 A main switch. The site has a mains cold water supply at 200 kPa running pressure, 12 litres per minute, 500 kPa static pressure, 12 degrees C inlet temperature and 100 ppm water hardness; the shower is for a bathroom, not a steam room. The specification states a 230 V rating of 8.7 kW and a minimum mains flow of 8 litres per minute. It is ready to send.
Verdict: Needs approval.
The agent's request. Please specify the installation of one Triton T80Z Fast-Fit electric shower rated 9.5 kW at 240 V for a customer of Kestrel Plumbing and Heating. It is on a 40 A circuit breaker with 10 mm² cable run in conduit or trunking, with a 30 mA RCD, its own independent circuit, a 45 A double pole isolating switch and a spare fuse way, on a consumer unit with a 100 A main switch; the local electricity supply company has been contacted. The site has a mains cold water supply at 200 kPa running pressure, 12 litres per minute, 500 kPa static pressure, 12 degrees C inlet temperature and 100 ppm water hardness; the shower is for a bathroom, not a steam room. The specification states a 230 V rating of 8.7 kW and a minimum mains flow of 8 litres per minute. It is ready to send.
Verdict: Allowed.
The agent's request. Please specify the installation of one Triton T80Z Thermostatic Fast-Fit electric shower rated 10.5 kW at 240 V for a customer of Kestrel Plumbing and Heating. It is on a 50 A circuit breaker with 16 mm² cable run in conduit or trunking, with a 30 mA RCD, its own independent circuit, a 45 A double pole isolating switch and a spare fuse way, on a consumer unit with a 100 A main switch; the local electricity supply company has been contacted. The site has a mains cold water supply at 200 kPa running pressure, 12 litres per minute, 500 kPa static pressure, 27 degrees C inlet temperature and 100 ppm water hardness; the shower is for a bathroom, not a steam room. The specification states a 230 V rating of 9.0 kW and a minimum mains flow of 11 litres per minute. It is ready to send.
Verdict: Blocked.
The agent's request. Please specify the installation of one Triton T80Z Fast-Fit electric shower rated 10.5 kW at 240 V for a customer of Kestrel Plumbing and Heating. It is on a 45 A circuit breaker with 16 mm² cable run in conduit or trunking, with a 30 mA RCD, its own independent circuit, a 45 A double pole isolating switch and a spare fuse way, on a consumer unit with a 100 A main switch; the local electricity supply company has been contacted. The site has a mains cold water supply at 200 kPa running pressure, 12 litres per minute, 500 kPa static pressure, 27 degrees C inlet temperature and 100 ppm water hardness; the shower is for a bathroom, not a steam room. The specification states a 230 V rating of 9.6 kW and a minimum mains flow of 11 litres per minute. It is ready to send.
Verdict: Allowed.
The text of the narrated walkthrough, step by step.