Hubbell ST Manuel d'utilisateur

OPERATING AND MAINTENANCE MANUAL FOR STEAM FIRED WATER HEATER ELECTRIC HEATER COMPANY BASE MODEL “ ST and STH ”

10 3. Stainless Steel – Stainless steel (type 304, 316, or 316L) is well suited for high purity applications requiring a corrosion resistant tank w

11STEAM OPERATING CONTROLS The steam operating controls are factory selected, sized, piped, and tested to ensure reliable operation. Steam controls

12 OPTIONS The following optional features may be included in your water heater. Reference the drawing specific to your heater for further details.

13SECTION II – INSTALLATION AND OPERATION WARNING / CAUTION DO NOT TURN ON THE STEAM SUPPLY to this unit until heater is completely filled with w

14 3. Install the combination temperature and pressure safety relief valve in the tapping provided. Note that this is required by law for safety co

15 Typical Piping Diagram ELECTRICAL INSTALLATION 1. If the unit is furnished with a pilot or self contained control valve, no external source o

16 FILLING THE HEATER 1. Begin with all steam, condensate, and water valves closed. 2. Open the isolation valves on the integral circulator line

17SHUTDOWN 1. Close valve to heating medium and air supply valve, if air operated controls are furnished 2. Disconnect all electrical power to

18 SECTION III - SCHEDULED MAINTENANCE AND SERVICING WARNING / CAUTION Before performing any maintenance procedure, make certain steam supply

19 11. Convection packages may be equipped with an integral circulator. This circulator should be serviced per the enclosed pump O&M manual. 1

2 HUBBELL ELECTRIC HEATER COMPANY P.O. BOX 288 STRATFORD, CT 06615 PHONE: (203) 378-2659 FAX: (203) 378-3593 INTERNET: http://www.hubbe

20 occur at this point, but as the gasket seats, leaking will gradually stop). After leaking has stopped, turn the nut approximately 1 revolution. A

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23SINGLE SAFETY SOLENOID SYSTEM (if installed)

24 DOUBLE SAFETY SOLENOID SYSTEM (if installed)

25SECTION IV – ADJUSTMENT OF TEMPERATURE REGULATORS 1. The spring tension on temperature regulators is adjusted at the factory to meet design co

26 f. Apply air pressure to valve diaphragm so that stem halves are aligned and re-connect stem halves. g. If valve will not open with air on the

27c. Spence Valves: There is no main spring adjustment on Spence Valves. To set temperature on the water heater: (1) Turn pilot spring adjustment

28 SECTION V – TROUBLESHOOTING (See separate component O&M for additional details.) Symptom Probable Cause Corrective Action / Remedy Tubes a

29 High rate of flow beyond design conditions. Consult factory. Excessive vibration. Under sized piping to the unit. Re-pipe lines to unit using p

3 TABLE OF CONTENTS SECTION TITLE PAGE #

30 SECTION VI – MISCELLANEOUS CHARTS AND FORMULAS TORQUE VALUES BOLT SIZE 18-8 S/S IN.-LBS. BRASS IN.-LBS. SILICONBRONZE IN.-LBS. ALUMINUM2024-T4

31METRIC CONVERSIONS

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6 NOMENCLATURE FOR PARTS

7NOMENCLATURE FOR ACCESSORY PARTS

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9SECTION I - GENERAL DESCRIPTION AND CONSTRUCTION GENERAL DESCRIPTION This book describes a packaged steam powered water heater that is a statio