Component Testing Guide Introduction; Nominal Voltage; Fundamental Component Testing; Visual Check - Cleveland steamcraft 21-CET-8 Service Manual

COMPONENT TESTING GUIDE INTRODUCTION

Nominal Voltage

FUNDAMENTAL COMPONENT TESTING

Visual Check

The lower float magnet controls the low water level switch. When the water level in
the generator rises to safely cover the heater elements, the magnet doses the low
water level switch to allow neater operation. During normal operation the low level
switch remains dosed. If a malfunction occurs and water level decreases below a
safe operating level, the lower float magnet opens the low water level switch to
remove power from the heater contactor.
During steaming o perations, the high level float switch operates to maintain the
proper water level in the steam generator.
• While the upper float chamber is below the upper switch set point, the high level
float switch is dosed. While the switch is dosed, water fills the generator.
• When the water level in the float cylinder raises the upper float chamber to the
upper switch set point, the magnet in the upper chamber opens the high level
switch. This shuts the fill valve and stops water flow into the generator.
The component testing guide helps qualified service personnel test SteamCraft 3.1
components and determine which are operating properly. By first identifying the
systems that are operable, service personnel can quickly isolate malfunctions
without unnecessary testing and component replacement The guide has two
sections:
• Fundamental Component Testing
• Component Test Procedures
If components must be replaced, use only Cleveland Range authorized replacement
parts to maintain complete warranty coverage.
Throughout the testing guide and instructions, the text uses 230 VAC as the typical
or nominal voltage. Refer to the Product Identification Plate (Chapter 1), and
determine the voltage characteristics of the SteamCraft 3.1 being serviced (i.e. 208
or 460 VAC). Use this voltage in place of the nominal voltage cited in the text
This section summarizes the fundamentals of testing SteamCraft 3.1 components.
An occasional review of this material is advisable, even for the most experienced
service representative. Keep the principles of this section in mind while testing and
servicing the SteamCraft 3.1 and its components.
Before starting any detailed troubleshooting, visually check the unit for obvious
damage or other faults. Often malfunctions can quickly be isolated by inspecting for
water leaks, loose connections, and burned or melted wiring insulation.
Model 21 -CET-8 Service Manual
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