Siemens RVP350 Series Controller for Use with 1 Heating Circuit and d.h.w

This controller is a multifunction heating control unit designed for single heating circuits and combined heating Plus domestic hot water in residential and non-residential buildings. It operates from AC230V and communicates via the LPB protocol to integrate with building automation. The product manages weather‑compensated flow temperature, scheduler‑based operation and frost protection while offering local manual control and a backlit LCD for on‑site interaction.

• LPB communication enables centralised system integration
• Weather‑compensated flow control reduces unnecessary fuel use
• Supports 7‑day scheduler with three daily phases for automated timing
• Digital input permits remote change of operating mode
• Multifunctional relays permit pump and d.h.w. control configurations
• Pump kick and overrun functions prevent pump seizing and heat build‑up

• Suitable for control of one heating circuit in HVAC installations
• Ideal for combined heating and domestic hot water with storage cylinders
• Used with room units and outside sensors for compensated control
• Can be used in district‑heated zones with primary return valve control
• Suitable for systems requiring LPB protocol integration for automation

The device is powered from AC230V at 50Hz with a recommended slow‑blow fuse or circuit‑breaker protection sized up to 10A/13A depending on characteristic.

It accepts sensors with LG‑Ni1000 sensing elements and PPS room units

The unit provides multiple multifunctional relay outputs configurable for circulating pumps, d.h.w. functions or alarm signalling, with rated relay currents to suit AC24 230V loads.

Frost protection maintains an adjustable minimum room temperature and can run pumps automatically to prevent plant freeze‑up

Permitted copper cable runs are specified by conductor size, for example up to 120m with 1.5mm2 for sensors and up to 50m for room units with 0.5mm2.