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Grundfos PHT A-F250 User Manual

Grundfos PHT A-F250
40 pages
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GRUNDFOS INSTRUCTIONS
PHT A Pressurisation unit
Installation and Operating Instructions
Models: PHT A N/D/F/T/V
Residential and Commercial
ORIGINAL INSTRUCTIONS
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Grundfos PHT A-F250 Specifications

General IconGeneral
TypePressure Transmitter
SeriesPHT
ModelA-F250
Output Signal4-20 mA
Accuracy±0.5% FS
Housing MaterialStainless steel
Media CompatibilityWater, wastewater

Summary

Product Identification and Principles

Operating Principles

Explains the fundamental function of the PHT A pressurisation unit.

PHT A Unit Types

Standard Pressurisation Unit

Details the arrangement and components of the standard PHT A-N/D/F models.

Twin System Pressurisation Unit

Explains the design for providing top-up for two systems with PHT A-T models.

Operating Conditions and Fixings

System Controller Overview

Menu Navigation and Faults

Fault Indication and Log

Covers how faults are displayed, acknowledged, logged, and cleared.

Outputs and System Integration

Installation and Commissioning Procedures

Float Valve Adjustment

Guides float valve adjustment for N/D/V and F/T models, including filters and restrictors.

Pump Priming

Provides essential steps for priming pumps to prevent damage during initial operation.

Checklists and Records

Installation Checklist

A step-by-step guide to verify correct installation procedures are followed.

Commissioning Checklist

A checklist to ensure all steps are completed before the unit is put into operation.

User Maintenance and Service

Wiring and Connections

Connection Drawing

Illustrates the terminal layout and connections for all PHT models.

Wiring Diagram

Provides a detailed wiring diagram for the PHT unit, including wire specifications.

Fault Finding and CIM Modules

Fault Finding Guide

A comprehensive guide to identify and resolve common faults with their remedies.

Quick Guides for Operation

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