State Industries SUF100199, SUF100150 Ultraforce Commercial GAS Water Heater, Table of Contents

ULTRAFORCE COMMERCIAL GAS WATER HEATER

SUF 120 thru 400 SERVICE HANDBOOK

TABLE OF CONTENTS

INTRODUCTION	2
QUALIFICATIONS	2
TOOLS REQUIRED	3
GENERAL INFORMATION	4
GAS PRESSURE SPECIFICATIONS	4
INSTALLATION QUICK TIPS – SUF 120 and 150 GAS
PRESSURE	5
ADJUSTMENT PROCEDURE:	5
GAS PRESSURE	5
SUF120 AND 150 MODELS	5
HIGH ALTITUDE INSTALLATIONS	5
SUF 120 - 150	5
INSTALLATION QUICK TIPS - SUF 199 AND 250 GAS
PRESSURE	6
ADJUSTMENT PROCEDURE:	6
GAS PRESSURE	6
SUF 199 AND 250 MODELS	6
HIGH ALTITUDE INSTALLATION	6
INSTALLATION QUICK TIPS - SUF 300, 400 GAS
PRESSURE	7
ADJUSTMENT PROCEDURE:	7
GAS PRESSURE	7
SUF 300,400,....................................................................7
HIGH ALTITUDE ADJUSTMENT	7
SUF 300,400,....................................................................7
INSTALLATION TIPS - SUF 300, 400	8
VENTING TABLES SUF 120 – 250	9
VENTING TABLES SUF 300,400,.....................................9
VENTING - ALL MODELS – SINGLE PIPE POWER VENT –
USING ROOM AIR	10
VENTING – ALL MODELS – TWO PIPE DIRECT VENT –
USING OUTSIDE AIR	11
VENT TERMINATION – DIRECT VENT – ALL MODELS. .12
DIRECT VENTING – ALL MODELS	13
CONTROL OVERVIEW	14
CONTROL OVERVIEW – ALL MODELS	14
ADJUSTING TANK TEMPERATURE – OPERATING SET
POINT - DIFFERENTIAL	15
CHANGING THE DISPLAY UNITS	16
FAULT AND WARNING CONDITIONS – ADVANCED
DIAGNOSTIC INFORMATION	17
ACCESS TO THE CURRENT FAULT OR WARNING	18
VIEWING THE FAULT HISTORY - VIEWING
INFORMATION ABOUT THE HEATER	19
CONTROL SEQUENCE (TYPICAL ALL MODELS)	20
CONTROL SEQUENCE FLOW CHART	21
CONTROLS – CENTRAL CONTROL BOARD – CCB	22
CONTROLS – GAS VALVE SUF 120	23
CONTROLS – GAS VALVE SUF 150	23
CONTROLS – GAS VALVE SUF 199 and 250	24
ADJUSTMENT PROCEDURE:	24
GAS PRESSURE	24
SUF 199 AND 250 MODELS	24
CONTROLS – GAS VALVE SUF 199 and 250	25

CONTROLS – GAS VALVE , ORIFICE CHART– SUF300,400,...................................................................26

CONTROLS – PRESSURE SWITCHES – ALL MODELS..27 CONTROLS – PRESSURE SWITCHES – SUF 120 through

250	28
CONTROLS – PRESSURE SWITCHES – SUF 300,400,. .29
CONTROLS – CONNECTIONS, IGNITER, FLAME
SENSOR, SIGHT GLASS, POWERED ANODES	30
HOT SURFACE IGNITER / FLAME SENSOR / CONTROL
TIMING	31
BLOWER SPEED CONTROL SUF 199 AND 250	32
VARIABLE FREQUENCY DRIVE – SUF 400	33
VARIABLE FREQUENCY DRIVE - BLOWER SPEED AND
PRESSURE READINGS	34
WIRING DIAGRAM – SUF 120 – 300	35

WIRING DIAGRAM – SUF 400,.......................................36

State Water Heaters – Technical Training Department 1 Ashland City, Tennessee © 2009

Servicing should only be performed by a Qualified Service Agent 198152-002