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COMMERCIAL GAS WATER HEATERS
SERVICE HANDBOOK
HIGH EFFICIENCY
COMMERCIAL GAS SERIES
FOR MODELS:
• SUF 60 1 2 0
• SUF 1 0 0 1 50
• SUF 100 199
• SUF 100 250
• SUF 130 300
• SUF 130 400
PRINTED 0509 198152-002
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK TABLE OF CONTENTS INTRODUCTION...............................................................2 CONTROLS – GAS VALVE , ORIFICE CHART– QUALIFICATIONS............................................................2 SUF300,400,...................................................................26 TOOLS REQUIRED.........................................................3 CONTROLS – PRESSURE SWITCHES – ALL MODELS..27 GENERAL INFORMA
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK INTRODUCTION The service handbook is designed to aid in inclusive. If you are experiencing a problem servicing and troubleshooting State W ater not covered in this handbook, please contact Heaters Ultra Force SUF commercial water State Water Heaters Technical Information at heaters i n the field. No duplication or1-800-365-0024, by e mail at reproduction of this book may be madehelp@statewaterheaters.com or your local
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK TOOLS REQUIRED ● ELECTRICAL MULTIMETER CAPABLE OF MEASURING CONTINUITY/ OHMS, AC & DC VOLTS, AMPERES, MICROAMPERES, MILLIVOLTS, and FREQUENCY(Hz) ○ UEi Model DL289 or equivalent ● DIGITAL MANOMETER + 60” W. C. in .01” increments Note: A digital manometer is required for testing pressure switches and can replace a gas pressure gauge, draft gauge or slack tube manometer for checking gas pressure. ○ UEi model EM200 or equi
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK GENERAL INFORMATION INSTALLATION REQUIREMENTS FOR THE equipment is installed in a crawl space or an attic, COMMONWEALTH OF MASSACHUSETTS the hard wired carbon monoxide detector with alarm For all side wall terminated, horizontally ventedand battery back-up may be installed on the next power vent, direct vent, and power direct vent gas adjacent f loor l evel. I n t he e vent t hat the fueled water heaters installed in ever
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK INSTALLATION QUICK TIPS – SUF 120 and 150 GAS PRESSURE ADJUSTMENT PROCEDURE: GAS PRESSURE a. Attach a pressure gauge (manometer) to the manifold pressure tap and refer to page 4 for correct SUF120 AND 150 MODELS pressure. Main line gas pressure to the water heater for natural b. Use this formula to “clock” the meter. Be sure gas should be between a maximum of 10.5"W.C. other gas consuming appliances are not operating
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK INSTALLATION QUICK TIPS - SUF 199 AND 250 GAS PRESSURE ADJUSTMENT PROCEDURE: HIGH ALTITUDE INSTALLATION GAS PRESSURE The SUF 199 and 250 models are suitable for installation up to 10,100 feet above sea SUF 199 AND 250 MODELS level with no adjustments. IMPORTANT NOTE GAS ORIFICE The SUF 199 and 250 models do not have a THE SUF 199 AND 250 MODELS natural gas orifice. A .230” orifice is used on INCORPORATE A NEW GAS CONT
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK INSTALLATION QUICK TIPS - SUF 300, 400 GAS PRESSURE ADJUSTMENT PROCEDURE: HIGH ALTITUDE ADJUSTMENT GAS PRESSURE SUF 300,400, SUF 300,400, For high altitude adjustments, contact the help line on the front of the water heater or contact help@statewaterheaters.com . A minimum dynamic gas supply pressure of 5.2" w.c. (1.29 kPa) for Natural Gas and 11" w.c. (2.74 kPa) for LP Gas is required before making any adjustment to
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK INSTALLATION TIPS - SUF 300, 400 State Water Heaters – Technical Training Department 8 Ashland City, Tennessee © 2009 Servicing should only be performed by a Qualified Service Agent 198152-002
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK VENTING TABLES SUF 120 – 250 Maximum equivalent feet of intake and vent pipe using 3” PVC is 50 feet (15.2m). Equivalent feet must include any 90° elbows (two 45° elbows equal one 90° elbow). Three inch diameter 90° elbows are equivalent to 5' (1.5m) of pipe. Maximum equivalent feet of intake and vent pipe using 4” PVC is 120 feet (36.6m). Equivalent feet must include any 90° elbows (two 45° elbows equal one 90° elbow).
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK VENTING - ALL MODELS – SINGLE PIPE POWER VENT – USING ROOM AIR State Water Heaters – Technical Training Department 10 Ashland City, Tennessee © 2009 Servicing should only be performed by a Qualified Service Agent 198152-002
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK VENTING – ALL MODELS – TWO PIPE DIRECT VENT – USING OUTSIDE AIR State Water Heaters – Technical Training Department 11 Ashland City, Tennessee © 2009 Servicing should only be performed by a Qualified Service Agent 198152-002
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK VENT TERMINATION – DIRECT VENT – ALL MODELS WHEN LOCATING THE TERMINALS ON A SIDEWALL, THE FOLLOWING SPECIFICATIONS PERTAINING TO TERMINAL LOCATION MUST BE FOLLOWED. 1. The intake vent terminal and the exhaust vent terminal must terminate on the same exterior wall and must be located at a minimum of 24" (61cm) from the vertical centerline of the exhaust vent terminal (see Figure 9). In colder climates increasing the 24" (
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK DIRECT VENTING – ALL MODELS The air intake provided on the unit contains a mesh screen to prevent large particles from entering the unit. WHEN THE UNIT IS TO BE SET UP AS A DIRECT VENT, THE BALANCE PLATE AND MESH SCREEN MUST BE REMOVED BEFORE GLUING PIPE TO THE CONNECTOR. THE INLET VENT PIPE MAY THEN BE GLUED TO THE AIR INTAKE PROVIDED ON THE UNIT. 45° PVC Elbow Remove the balance plate and mesh screen before glui
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK CONTROL OVERVIEW CONTROL OVERVIEW – ALL MODELS Interaction with the water heater controller is done The table of status icons describes graphically through an LCD display called the Universal operational details of the water heater. Below is a Interface Module (UIM).This screen is also referred to legend of all the status icons: as the “desktop” or “desktop menu”. Up and down Status Description buttons and three operati
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK ADJUSTING TANK TEMPERATURE – OPERATING SET POINT - DIFFERENTIAL The Operating Set Point of this water heater ACTION: determines the regulated temperature for the water in Press Change then use the UP and DOWN buttons to the tank. This parameter is adjusted in the desktop change the temperature Set Point. Temperature menu. Items in this menu allow you to monitor different temperature readings in the tank DISPLAY: along wit
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK CHANGING THE DISPLAY UNITS The desktop menu has the option of selecting ACTION: between degrees Fahrenheit and degrees Celsius for Press Update to accept the change or Cancel to temperature displays. This can be found in the reject it. “Display Settings” menu. Also in this menu, you may adjust how the back-light operates and the contrast of DISPLAY: the LCD screen. ACTION: From the Main Menu, press the DOWN button to high
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK FAULT AND WARNING CONDITIONS – ADVANCED DIAGNOSTIC INFORMATION This water heater control has the ability to monitor Faults: This is a safety related condition that has been almost all aspects of the water heater's operation. In detected by the heater. the case that there is an undesirable or unsafe condition that occurs, the water heater control will NOTE: When these conditions occur, the water heater detect this conditio
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK ACCESS TO THE CURRENT FAULT OR WARNING When a fault or warning has been detected by the control it will automatically be displayed on the screen and the back light will blink. If you choose to leave the current fault or warning by pressing the Back key, you ACTION: can always return to the fault through the display Press the DOWN button for more information. menu through the menu. DISPLAY: ACTION: To get to the current fa
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ULTRAFORCE COMMERCIAL GAS WATER HEATER SUF 120 thru 400 SERVICE HANDBOOK VIEWING THE FAULT HISTORY - VIEWING INFORMATION ABOUT THE HEATER The controller for this water heater will store a history Viewing Information About the Water Heater of ten of the last Fault and Warning conditions that occurred. This is stored in the Fault History. The The control for this water heater monitors many information about the fault or warning will include different aspects of the water to ensure safe and diag
