Do you have a question about the Grundfos PM Rain and is the answer not in the manual?
User warnings regarding product experience, supervision, and child safety.
Risk of electric shock if instructions are not followed.
Potential malfunction or damage if safety instructions are not observed.
Clean mains water or rainwater without solid particles or fibres.
Specifies liquid and ambient temperature limits for operation.
Maximum operating pressure limit for the unit.
Details on water and pump connections, and physical installation.
Guidance on positioning the unit for protection and accessibility, and mounting options.
Setting the pressure-reducing valve and aligning system pressures.
Safe electrical hookup, connecting units, and alternative power supply options.
Procedure for installing and venting the air release valve.
Description of indicator lights and buttons on the control panel.
Configuration options using DIP switches for start pressure and functions.
Procedure to activate the selected DIP switch configurations.
Steps to follow for initial system start-up and verification.
How the PM Rain manages pump operation based on water availability.
Two methods for pump start/stop: water consumption and differential pressure.
Detects and prevents rapid pump cycling to avoid damage.
Protects the pump from damage when operating without water.
Procedures for manual or automatic reset of dry-running alerts.
Behavior of the pump after a power interruption.
Explanation of warning indications, their causes, and meanings.
Key technical data for the PM Rain unit.
Common faults, their causes, and recommended remedies.
Contact information for additional support and queries.
Instructions for environmentally sound disposal of the product.
Schematic diagrams illustrating electrical connections for the unit.
Technical drawings showing the physical dimensions of the PM Rain unit.