Siemens RVP75.230 Connections, Settings & Retrofit to RVA53 or RVP361

User question

RVP75.230 Συνδέσεις και ρυθμίσεις

Artificial Intelligence Response

Direct answer to the question

• RVP75.230 is a Siemens/Landis & Staefa weather‑compensated heating controller (series D) that drives a 3‑position mixing valve (Y1/Y2), heating and DHW pumps (Q1/Q2/Q3), and one‑ or two‑stage burner (K4/K5). Sensors connect on the low‑voltage side (B‑terminals, M common). Commissioning is done from the front keys via function numbers (sensor/relay test, heating curve, schedules). (slideshare.net)
• Typical terminal/use highlights:
  • B9: outdoor sensor; B1: flow/supply; B2/B3: boiler/DHW; B31: tank; B7: return; B5/A6: room unit; M: common (left block = SELV). Right block = 230 VAC mains: L, N, Y1/Y2 (valve open/close), Q1/Q2/Q3 (pumps), K4/K5 (burner stages), K6 (multi‑function). (manualslib.de)
• Product is obsolete; Siemens proposes newer RVP3xx family (e.g., RVP361) or Albatros RVA53 as retrofit. (hvac.de)

Detailed problem analysis

• Functional role
  • Weather compensation: computes flow setpoint from outdoor temperature and building characteristics. It can limit max/min flow, handle DHW charging with priority, and manage one or two heating circuits (mixed/pumped) depending on configuration. (slideshare.net)
  • Actuation: three‑position actuator for mixing valve (Y1=open, Y2=close) and relay outputs for pumps and burner stages. (slideshare.net)
• Electrical segregation and wiring concept
  • Left terminal row (SELV, ~12 V DC per manual): sensor inputs B… with shared M commons. Keep these away from mains wiring; use twisted pairs and avoid parallel routing with 230 VAC. (slideshare.net)
  • Right terminal row (230 VAC): L/N supply and switched outputs. Some outputs are fed via internal bridges “F…” per diagram (e.g., L–F4/F5 for burner safety chain), so preserve existing loop links when replacing or servicing. (manualslib.de)
• Typical terminal mapping you will see on an RVP75.230 panel (front view)
  • Sensors (left): B9 (outdoor), B1 (flow), B2 (boiler), B3 (DHW), B31 (tank), B7 (return), B5 (room), A6 (PPS/room unit), M (commons). (slideshare.net)
  • Mains (right): Y1/Y2 (3‑pos mixing actuator), Q1 (heating circ./primary pump), Q2 (heating pump HC1), Q3 (DHW charging/diverter), K4/K5 (burner stages 1/2), K6 (multi‑purpose), L, N, and series F… inputs for safety/enable links. (manualslib.de)
• Commissioning flow the controller supports
  • Built‑in tests: sensor test (displays actual values) and relay test (energize outputs individually) to verify wiring before optimization. (slideshare.net)
  • Parameterization via “function numbers” (front keys): heating curve slope/shift, max/min flow, DHW setpoint/priority, room influence, schedules, frost protection, etc. (slideshare.net)
• Typical setpoint strategy
  • Slope: start 1.2–1.5 for radiators; 0.4–0.8 for floor heating; fine‑tune with parallel shift to match building inertia/insulation. Limit max flow to protect emitters and avoid short‑cycling. (Controller provides automatic curve adaptation features in series D.) (slideshare.net)
• Integration/retrofit options
  • Direct service replacement is no longer offered; field practice is either repair, buy refurbished, or retrofit to RVA53.242 (Albatros) using Siemens’ wiring map, or migrate to RVP3xx (e.g., RVP361) with functional equivalence verification. (manualslib.de)

Current information and trends

• Obsolescence: RVP75.230 is no longer supplied; third‑party vendors list it as “old/no longer available,” suggesting RVP361 as a current functional successor. Siemens also provides retrofit documentation for RVA53 replacing RVP75.230. (hvac.de)
• Support reality: Refurbished/repair services exist; for new projects, use current RVP3xx/Albatros families to meet today’s efficiency and safety expectations. (reglerservice24.de)

Supporting explanations and details

• Sensors and part families referenced in the manual
  • Outdoor: QAC31 (mount on north façade, shaded, 2–2.5 m above ground).
  • Flow/boiler/tank: QAZ21 (immersion) or QAD21 (strap‑on) as per pipework.
  • Room units: QAA50/QAA70 (digital) or QAA35 variants, depending on installation. Use Siemens‑matched sensing elements for correct curves. (slideshare.net)
• Typical wiring example (one mixed HC + DHW + 2‑stage burner)
  • B9–M (outdoor), B1–M (flow), B31–M (tank) connected; Y1/Y2 to 230 V 3‑position actuator with neutral to N; Q1 to heating pump; Q3 to DHW charging pump; K4/K5 to burner stages through safety chain (F4/F5 links); confirm any required L–F bridges remain. Reverse Y1/Y2 if valve travel is opposite. (manualslib.de)
• Built‑in diagnostics
  • Use sensor test to confirm realistic outdoor/flow/tank values.
  • Use relay test to check that each output energizes the intended device without tripping fuses. (slideshare.net)

Ethical and legal aspects

• Safety: The right terminal block carries 230 VAC. Isolate at breaker, lock‑out/tag‑out, and verify dead before touching. Only qualified personnel should alter burner interlocks (K4/K5/F4/F5). Follow national electrical and gas codes. (manualslib.de)
• EMC and SELV: Maintain segregation; never mix mains on B‑terminals; preserve protective earth and safety thermostats/limiters as per original scheme. (slideshare.net)

Practical guidelines

• Before power‑up
  • Verify sensor types and positions; continuity to M; insulation to mains.
  • Confirm L/N polarity, protective earth, and integrity of safety chain links F… for burner enable. (manualslib.de)
• First start
  • Run sensor/relay tests; check correct valve direction (swap Y1/Y2 if needed).
  • Start with conservative heating curve; set max flow per emitter limits; set DHW 50–55 °C (raise temporarily for anti‑Legionella if the system supports it). (slideshare.net)
• Tuning
  • If rooms are cold at low outdoor temps, increase slope slightly; if rooms overshoot at mild weather, decrease slope or add negative parallel shift; use room influence only if a representative room unit is installed. (slideshare.net)
• Replacement path (if RVP75.230 fails)
  • RVA53.242 retrofit: follow Siemens’ page‑by‑page “Austausch‑Anschlusspläne” mapping (shows how RVP75.230 B…/Y…/Q…/K… move to RVA terminals). (manualslib.de)
  • New controller: check RVP361 function pack against your plant (heating circuits, DHW, burner stages) before assuming 1:1 swap. (hvac.de)

Possible disclaimers or additional notes

• Terminal lettering and optional inputs (e.g., F1/F2/F6/F7 links, K6 multi‑function) vary by application; always cross‑check with the exact wiring diagram in your plant file. (manualslib.de)
• The Polish “CE1P2440PL” manual covers series D controllers and shows function/terminal detail, but translations may be required if you need English/Greek. (slideshare.net)

Suggestions for further research

• Siemens CE1P2440 (series D) documentation for RVP75.230: terminals, functions, tests, and commissioning. (slideshare.net)
• Siemens retrofit guide CE1G2373de (RVA53.242/901): wiring maps when replacing an RVP75.230. (manualslib.de)
• Current Siemens RVP3xx/RVD/RVL families for new designs or upgrades; verify functional equivalence (heating circuits, DHW, burner stage count). (mall.industry.siemens.com)

Brief summary

• Connect all temperature sensors to the left SELV B‑terminals with M common; wire actuators/pumps/burner to the right 230 VAC terminals (Y1/Y2, Q1/Q2/Q3, K4/K5/K6, L/N). Commission using the built‑in function lines (sensor/relay tests, heating curve, limits, schedules). Since RVP75.230 is obsolete, keep the original manual to preserve the exact wiring, or use the Siemens RVA53 retrofit map or a current RVP3xx controller after confirming feature parity. (slideshare.net)

If you share a photo of your terminal strip (front view) and list the connected devices (pumps, valve actuator type, burner stage count), I can mark the exact terminals and propose initial parameter values for your plant.

Disclaimer: The responses provided by artificial intelligence (language model) may be inaccurate and misleading. Elektroda is not responsible for the accuracy, reliability, or completeness of the presented information. All responses should be verified by the user.