User ManualTable of ContentsELECTRIC HEATER COMPANY1WARNING / CAUTION2TABLE OF CONTENTS355GENERAL DESCRIPTION5CONSTRUCTION55PRESSURE VESSEL5OUTER SHELL, INSULATION, AND SUPPORTS6ELECTRICAL ENCLOSURE6A louvered control panel available in various sizes and with assorted types of handles is supplied. The standard cabinet is rated NEMA 1, but other NEMA rated enclosures are available, consult drawing for further information. A list of NEMA ratings are a6CONTROL THERMOSTAT7MAGNETIC CONTACTOR8FUSED LOW VOLTAGE TRANSFORMER8To prevent the possibility of damage to control circuits and other elements in case of electrical overloads, fuses may be supplied for each element. Two types of fuses may be used; a type NON for voltages less than 250-volt or type JJS for voltage less t9LOW WATER CUT-OFF9OPTIONS9On / Off Control Switch10A built-in non-fused On/Off disconnect switch may be supplied with the control panel to decrease the risk of injury when working with the control panel.10Built-In Circuit Breaker10Audible Alarm10Status Indicating Lamp(s)10An SCR “zero fired” power controller for 0-100% proportional control of heaters may be supplied.11Dial Temperature and Pressure Gauge11FINAL CHECKS13Symptom15Size: 4.11 MBPages: 25Language: EnglishOpen manual