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General| Brand | Grundfos |
|---|---|
| Model | PHT-F250 |
| Category | Water Filtration Systems |
| Language | English |
Main guide for installation, operation, and maintenance of the PHT unit.
Lists directives and standards the product adheres to.
Explains the PHT unit's role in monitoring and maintaining system pressure.
Outlines the three distinct unit types: Standard, Twin System, and Glycol.
Illustrates the components and connections of the PHT-N/D/F models.
Details the purpose of parts like Break Tank, Float Switches, and Outputs.
Shows the layout for a twin system pressurisation unit.
Illustrates how faults, sensor issues, and service requirements are shown.
Details the three programmable digital outputs (DO6, DO7, DO8).
Details alarms activating DO1 and conditions for disabling System 1.
Lists alarms activating DO2 and conditions for disabling System 1.
Emphasizes qualified personnel, earthing, and safe practices.
Warns against dry running, removing covers, and incorrect electrical supply.
Explains priming pumps and system to prevent damage.
Lists sequential steps for installation before commissioning.
Details the sequence of actions for commissioning the unit.
Provides a table to record common and PHT-T specific settings.
Recommends Grundfos Services for maintenance.
Advises annual servicing by a qualified person and safety precautions.
Illustrates the main board connections for all PHT models.
Shows the detailed wiring connections for the PHT unit.
Lists fault messages, their conditions, and remedies.
Continues the fault finding guide with more common faults and solutions.
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