User guide

ManualsBrandsLeslie Controls ManualsEquipmentUnfired Steam Generator LVSG SERIES

Installation, Operating

and Maintenance

Instructions

90/6.5.0

Rev. 1

UNFIRED STEAM GENERATOR

LVSG SERIES

TABLE OF CONTENTS

INTRODUCTION ...................................................................................................................................................................................2

CONTACT INFORMATION.................................................................................................................................................................2

GENERAL NOTES AND WARNINGS ................................................................................................................................................2

CONNECTING ELECTRIC POWER SOURCE................................................................................................................................................3

CONTROLLER – OVERVIEW.............................................................................................................................................................3

CONTRACTOR WIRING......................................................................................................................................................................4

RATINGS .................................................................................................................................................................................................5

CONTROLLER SCREENS....................................................................................................................................................................5

SETTING CONTROLLER ....................................................................................................................................................................5

SCREEN LISTING..................................................................................................................................................................................5

INSTRUCTIONS FOR SETTING EACH SCREEN ...........................................................................................................................6

TERMINAL BOARD LAYOUT............................................................................................................................................................9

TROUBLE SHOOTING .......................................................................................................................................................................11

Summary of content (11 pages)

PAGE 1
Installation, Operating and Maintenance Instructions 90/6.5.0 Rev. 1 UNFIRED STEAM GENERATOR LVSG SERIES TABLE OF CONTENTS INTRODUCTION ...................................................................................................................................................................................2 CONTACT INFORMATION.................................................................................................................................................................
PAGE 2
INTRODUCTION To order replacement parts, contact LESLIE CONTROLS at address listed above, or call toll free: This Installation, Operation, and Maintenance Manual is intended to be as complete and up to date as possible. It covers installation, operation, and maintenance procedures for Leslie Controls, Inc. Unfired Steam Generator and 2001 SSCM control module.
PAGE 3
Warnings ! WARNING! WARNING! As with any piece of equipment that utilizes hot/boiler water or steam and electricity, potential exists for severe personal injury if proper installation, operation, and maintenance procedures are not followed. Listed on following pages are specific warnings pertaining to LESLIE Electronic Controls. All warnings should be carefully read and understood. All precautions contained in warnings should be carefully followed to reduce chance of injury.
PAGE 4
Solid State Control Module is supplied with a LED backlit LCD display. LED pilot lights are supplied to indicate OnOff, high pressure, low pressure, low water, high water, water feed, and blow down. Solid state control module allows owner to set pressure limits on display screen. Solid state control module has a flashing red alarm light and alarm horn with built in alarm silence relay.
PAGE 5
Field wiring: Installer must run feed wires to terminals on panel mounted on-off disconnect switch and green ground wire to ground lug. Units are normally wired for 120 volt single phase input. Next Select Controller Screens There are two tactile keys on front of panel. Left key, labeled NEXT, is pushed to select desired function. Right key, labeled SELECT, is pushed to access desired screen. Both function and setting are read on LED backlit LCD display.
PAGE 6
Screen 5 LOW PRESSURE Screen 6 DIFFERENTIAL Screen 7 PRESSURE SENSOR Screen 8 LEVEL CONTROL Screen 9 INITIAL SETTINGS Screen 11 ABOUT Screen 10 DIAGNOSTICS Screen 12 QUIT Screen 1 (Home) MODE [NORMAL] PRESSURE PSI [XXX] MODE can be either NORMAL or ALARM. Mode will read normal in normal operation and alarm if any alarm condition occurs. If an alarm condition is cleared mode will switch back to normal reading. Pressure psi: This is pressure of generated steam.
PAGE 7
High pressure cut out This is pressure limit which is set 10-20% higher than desired operating pressure. When high pressure cut out pressure is reached controller will cause main control valve to close. High and low pressure reset differential This is pressure differential from set point at which high or low pressure will reset. Normally it is set at 2 psi but can be set from 1 to 10 psi. NOTE: There is only one differential setting and it will be same for both high and low pressure.
PAGE 8
Level control type There are two types of level controllers, either one of which may be supplied with Unfired Steam Generator. First type is a 4 ball float assembly type mounted in a stainless steel body with a shape as shown below. This is TYPE [0]. second type is a one ball float type with multiple switches in a cast iron body with a shape as shown below. This is TYPE [1]. 3. Type 0 Initial Settings Initial settings are for factory use only and can not be accessed 4.
PAGE 9
Terminal Board Layout Conductivity probe I-1 BAC pressure reading (Output) I-2 Pressure sensor I-3 High water float I-4 Stop water feed I-5 Start water feed I-6 Low level cut-off I-7 I N P U T S Optional input I-8 High water float (brown) Common Stop water feed float (blue) Common Start water float (yellow) Common Low level cut-off float (red) Float common (black) Optional input NO 15 Optional input NO 16 Unused I-9 Unused NC NO Com NC NO Com NC NO Com NC NO Com NC NO Com NC NO Com NC N
PAGE 10
Building Automation Control (BAC) Interface Contact closure as follows: ON COM - NO contact made when power is on Low water COM - NO contact made when in low water condition High water COM - NO contact made when high water occurs Water feed COM - NO contact made when water is feeding High pressure COM - NO contact made when high pressure occurs Low pressure COM - NO contact made when low pressure occurs Blow down operating COM - NO contact made when blow down occurs Optional input COM -
PAGE 11
TROUBLE SHOOTING CONDITION CHECK Any • Check all alarms and lights on controller Cold water • • • • • • • No water Low water High pressure Low pressure Electrical power source and all electrical connections. Steam source stopped.