Magnetrol T20 - Default Chapter; Table of Contents

Table of Contents
1.0 Introduction
1.1 Principle of Operation...........................................4
2.0 Installation
2.1 Unpacking.............................................................4
2.2 Critical alarm function ..........................................5
2.3 Mounting ..............................................................5
2.4 Wiring...................................................................6
3.0 Switch Differential Adjustment ...................................8
4.0 Preventive Maintenance
4.1 What to do..........................................................10
4.1.1 Keep control clean ....................................10
4.1.2 Inspect switch mechanisms, terminals,
and connections monthly .........................10
4.1.3 Inspect entire unit periodically..................11
4.2 What to avoid .....................................................11
5.0 Reference Information
5.1 Troubleshooting...................................................12
5.1.1 Check switch mechanism..........................12
5.1.2 Check complete unit ................................13
5.2 Agency Approvals ................................................14
5.3 Specifications.......................................................15
5.3.1 Physical.....................................................15
5.4 Replacement Parts ...............................................16
5.4.1 Model T20 Parts Identification.................16
5.4.1.1 Model T20......................................17
5.4.1.2 Mounting flanges ............................17
5.4.1.3 Switch and housing reference ..........17
5.4.2 Model T21 Parts Identification.................18
5.4.2.1 Model T21......................................19
5.4.2.2 Mounting flanges and
guide cage gaskets............................19
5.4.2.3 Switch and housing reference ..........19
5.5 Model Numbers ..................................................20
5.5.1 Model T20 ...............................................20
5.5.2 Model T21 ...............................................22
Top Mounting
Liquid Level Switches
3
44-604 Top Mounting Liquid Level Switches