Grundfos SCALA User Manual

English (GB)
13
7.1.2 Indicator lights, SCALA2
* For fault number 4, dry-running, the pump must
be reset manually. For fault number 4, water
shortage, and the remaining faults, 1, 2, 3, 5, 6
and 7, the pump will reset whenever the cause
has disappeared or been remedied. See section
8.3.2 Auto reset.
For further information about system status, see
section 12.1 Grundfos Eye operating indications.
8. Operating the controller
8.1 Setting the outlet pressure
Adjust the outlet pressure by pressing .
8.2 Locking and unlocking the operating
panel
The operating panel can be locked, which means
that the buttons do not function and no settings can
be changed accidentally.
How to lock the operating panel
1. Hold down the buttons simultaneously for
three seconds.
2. The operating panel is locked when symbol
lights up.
How to unlock the operating panel
1. Hold down the buttons simultaneously for
three seconds.
2. The operating panel is unlocked when symbol
turns off.
8.3 Expert settings, SCALA2
The expert setting menu allows the installer to toggle
between the functions "Auto reset", "Anti cycling"
and "Maximum continuous operating time".
Indications Description
Operating indications
The operating panel is locked
Power supply failure
The pump is blocked, e.g. the
shaft seal has seized up
Leakage in the system
Dry-running or water shortage*
The maximum pressure has been
exceeded or the setpoint cannot
be reached
The maximum runtime has been
exceeded
The temperature is outside the
range
1RWH
Expert settings are for installers only.

Grundfos SCALA Specifications

General

Frequency	50/60 Hz
Maximum Suction Lift	8 m
Installation	Horizontal
Approvals	CE
Pumped liquid	Water

Summary

General Information

Target Group

Intended for professional installers of the pump.

Symbols Used in This Document

Explains safety and informational symbols used throughout the manual.

Receiving the Product

Inspecting the Product

Check for damage and verify voltage/frequency match.

Scope of Delivery

Lists items included in the pump's packaging.

Installing the Product

General Installation Principles

Covers location, system sizing, and mechanical installation basics.

Foundation and Pipework

Details on mounting the pump and connecting inlet/outlet pipes.

Noise Reduction and Examples

Techniques for reducing noise and common installation scenarios.

Suction Configuration

Guidance on suction pipe length and tank/well setups.

Electrical Connection

Procedures for safely connecting the pump to power.

Starting Up the Product

Priming the Pump

Steps to fill the pump housing with water before operation.

Starting the Pump

Procedure for initial pump operation and venting.

Shaft Seal Run-in

Explanation of initial leakage from the shaft seal.

Product Handling, Storage, and Introduction

Handling and Storage Guidelines

Advice on safe handling, storage, and winterizing the pump.

Product Overview

Description, application, and pumped liquid specifications.

Identification

Nameplate Details

Explains the information presented on the pump's identification plate.

Type Key Explained

Deciphers the model coding system for SCALA pumps.

Control Functions

Menu Overview, SCALA2

Details the operating panel layout and functions.

Pressure Indicator, SCALA2

Explains how the required outlet pressure is displayed.

Indicator Lights, SCALA2

Explains the meaning of various status indicator lights.

Operating the Controller

Setting the Outlet Pressure

How to adjust the desired water pressure via controls.

Locking and Unlocking the Operating Panel

Securing the control panel to prevent accidental changes.

Expert Settings, SCALA2

Advanced configuration options for installers.

Maximum Continuous Operating Time

Timer to limit pump running duration.

Resetting to Factory Settings

Restores the pump to its original default configuration.

Starting Up After Shutdown or Standstill

Deblocking the Pump

Procedure for freeing a seized pump shaft.

Controller Settings Retention

How settings are retained after power loss.

Priming After Drain

Refilling the pump after draining for startup.

Servicing the Product

Insect Filter Maintenance

Instructions for cleaning the pump's insect filter.

Inlet and Outlet Valve Maintenance

Checking and cleaning non-return valves.

Customer Service Information

Contact details for service parts and support.

Service Kits

Information on available kits for pump maintenance.

Taking Out of Operation

Fault Finding the Product

Grundfos Eye Operating Indications

Visual cues on the pump indicating status and errors.

Fault Resetting

Methods to clear fault conditions after correction.

Fault Finding Chart

Detailed table for diagnosing pump issues and remedies.

Technical Data

Operating Conditions

Environmental and operational limits for the pump.

Mechanical Data

Details on pipe connections and materials.

Electrical Data

Power supply, frequency, and current specifications.

Dimensions and Weights

Physical size and weight of the pump.

Disposal

Declaration of Conformity