Page 3 - TABLE OF CONTENTS
1 Servicing should only be performed by a Qualified Service Agent TABLE OF CONTENTS INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2QUALIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . ....
Page 4 - INTRODUCTION; , or your local State Water Heaters representative for further; QUALIFICATIONS; should not attempt to service this water heater.
2 Servicing should only be performed by a Qualified Service Agent INTRODUCTION The service handbook is designed to aid in servicing and troubleshooting State Water Heaters Ultra Force SUF commercial water heaters in the field. No duplication or reproduction of this book may be made without the expre...
Page 5 - TOOLS REQUIRED
3 Servicing should only be performed by a Qualified Service Agent 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" inc...
Page 6 - GENERAL INFORMATION; INSTALLATION OF CARBON MONOXIDE DETECTORS; NFPA 720 and be ANSI/UL 2034 listed and CSA certified.; SIGNAGE; GAS PRESSURE SPECIFICATIONS
4 Servicing should only be performed by a Qualified Service Agent GENERAL INFORMATION INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS For all side wall terminated, horizontally vented power vent, direct vent, and power direct vent gas fueled water heaters installed in every dwelling,...
Page 7 - INSTALLATION QUICK TIPS – SUF 120 AND 150 GAS PRESSURE; ADJUSTMENT PROCEDURE: GAS PRESSURE SUF 120 AND 150 MODELS; maximum; Also see gas pressure specification table on; HIGH ALTITUDE INSTALLATIONS SUF 120 ‐ 150; For appliance installation locations with elevations above; “clock” the meter; . Be sure other gas consuming appliances are not operating
5 Servicing should only be performed by a Qualified Service Agent INSTALLATION QUICK TIPS – SUF 120 AND 150 GAS PRESSURE ADJUSTMENT PROCEDURE: GAS PRESSURE SUF 120 AND 150 MODELS Main line gas pressure to the water heater for natural gas should be between a maximum of 10.5" w.c. (2.59 kPa) for n...
Page 8 - decrease gas pressure and input rate.
6 Servicing should only be performed by a Qualified Service Agent Compare result to the de‑rated input required for the elevation at the installation location. Should it be necessary to adjust the gas pressure to the burner, to obtain the full input rate, the steps below should be followed: 3. Remov...
Page 9 - INSTALLATION QUICK TIPS – SUF 199 AND 250 GAS PRESSURE; ADJUSTMENT PROCEDURE: GAS PRESSURE SUF 199 AND 250 MODELS; ADJUST TO ACQUIRE THE CORRECT AMOUNT OF INPUT.; HIGH ALTITUDE INSTALLATION
7 Servicing should only be performed by a Qualified Service Agent INSTALLATION QUICK TIPS – SUF 199 AND 250 GAS PRESSURE ADJUSTMENT PROCEDURE: GAS PRESSURE SUF 199 AND 250 MODELS IMPORTANT NOTETHE SUF 199 AND 250 MODELS INCORPORATE A NEW GAS CONTROL, WHICH OPERATES AT A MANIFOLD PRESSURE OF 0" w...
Page 10 - Check the input rate as shown on page 6.
8 Servicing should only be performed by a Qualified Service Agent INSTALLATION QUICK TIPS – SUF 300, 400, 500 GAS PRESSURE ADJUSTMENT PROCEDURE: GAS PRESSURE SUF 300, 400, 500 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 ...
Page 11 - SEE MANUAL FOR COMPLETE INSTALLATION INSTRUCTIONS & DETAILS
9 Servicing should only be performed by a Qualified Service Agent INSTALLATION QUICK TIPS – SUF 300, 400, 500 SEE MANUAL FOR COMPLETE INSTALLATION INSTRUCTIONS & DETAILS
Page 12 - INSTALLATION – VENTING CATEGORY AND MATERIALS; ULTRA FORCE VENTING
10 Servicing should only be performed by a Qualified Service Agent INSTALLATION – VENTING CATEGORY AND MATERIALS ULTRA FORCE VENTING Category IV • Positive pressure in vent, above atmospheric.• These models will produce excessive condensate in vent.• Vent system must not be combined with any other a...
Page 13 - Vent Length Table Equivalent Feet (Meters) 120 through 250
11 Servicing should only be performed by a Qualified Service Agent VENTING TABLES – SUF 120 ‑ 250 Maximum equivalent feet of intake and vent pipe using 3" PVC is 50 feet (15.2 m). Equivalent feet must include any 90° elbows (two 45° elbows equal one 90° elbow). Three inch diameter 90° elbows are...
Page 14 - CONCENTRIC VENTING
12 Servicing should only be performed by a Qualified Service Agent CONCENTRIC VENTING Concentric venting allows for a single wall penetration. For multiple water heater installation using this vent practice any additional vents of this type may be located 12" on centerline to either side of the ...
Page 15 - VENT CONDENSATION; down and a “blocked exhaust” fault message.; than the SUF condensate.
13 Servicing should only be performed by a Qualified Service Agent VENT CONDENSATION Failure to properly install the drain line on the condensate elbow will result in a water heater shut down and a “blocked exhaust” fault message. The average dew point of natural gas flue products is 127°F. Propane ...
Page 16 - VENTING – ALL MODELS – SINGLE PIPE DIRECT VENT – USING OUTSIDE AIR
14 Servicing should only be performed by a Qualified Service Agent VENTING – ALL MODELS – SINGLE PIPE DIRECT VENT – USING OUTSIDE AIR TERMINATION CLEARANCES SIDEWALL POWER VENT V X VENT TERMINAL AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED v v A G V FIXED CLOSED FIXED CLOSED OPERABLE OPERAB...
Page 17 - VENTING – ALL MODELS – TWO PIPE DIRECT VENT – USING OUTSIDE AIR
15 Servicing should only be performed by a Qualified Service Agent VENTING – ALL MODELS – TWO PIPE DIRECT VENT – USING OUTSIDE AIR TERMINATION CLEARANCES SIDEWALL DIRECT VENT V X VENT TERMINAL AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED v v A G V FIXED CLOSED FIXED CLOSED OPERABLE OPERABLE...
Page 18 - VENT TERMINATION – DIRECT VENT – ALL MODELS; PERTAINING TO TERMINAL LOCATION MUST BE FOLLOWED.; centerline of the exhaust vent terminal.
16 Servicing should only be performed by a Qualified Service Agent 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 term...
Page 19 - DIRECT VENTING – ALL MODELS; THEN BE GLUED TO THE AIR INTAKE PROVIDED ON THE UNIT.; 00 only) and mesh screen before
17 Servicing should only be performed by a Qualified Service Agent 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 REMOV...
Page 20 - CONTROL OVERVIEW; Universal Interface; Operating Set Point
18 Servicing should only be performed by a Qualified Service Agent CONTROL OVERVIEW Interaction with the water heater controller is through an LCD display called the Universal Interface Module (UIM) . This screen is also referred to as the “desktop” or “desktop menu” . Up and down buttons and three ...
Page 21 - all the status icons:; Status Icon
19 Servicing should only be performed by a Qualified Service Agent The table of status icons describes graphically operational details of the water heater. Below is a legend of all the status icons: Status Icon Description The temperature of the water in the tank has fallen and the water heater will...
Page 22 - ADJUSTING TANK TEMPERATURE – OPERATING SET POINT – DIFFERENTIAL; The; Menu; From the Main Menu, press; Select; to enter the “Temperatures” screen.
20 Servicing should only be performed by a Qualified Service Agent ADJUSTING TANK TEMPERATURE – OPERATING SET POINT – DIFFERENTIAL The Operating Set Point of this water heater determines the regulated temperature for the water in the tank. This parameter is adjusted in the desktop Temperature menu. ...
Page 23 - Change; Differential; Update
21 Servicing should only be performed by a Qualified Service Agent ACTION: Press Change then use the UP and DOWN buttons to change the temperature Set Point. DISPLAY: Note: This procedure can also be used to change the Differential . The tank Upper and Lower Temperatures are not user changeable. The...
Page 24 - CHANGING THE DISPLAY UNITS
22 Servicing should only be performed by a Qualified Service Agent CHANGING THE DISPLAY UNITS The desktop menu has the option of selecting between degrees Fahrenheit and degrees Celsius for temperature displays. This can be found in the “Display Settings” menu. Also in this menu, you may adjust how ...
Page 25 - Press; to accept the change or; Cancel
23 Servicing should only be performed by a Qualified Service Agent ACTION: Press Update to accept the change or Cancel to reject it. DISPLAY:
Page 26 - FAULT AND WARNING CONDITIONS – ADVANCED DIAGNOSTIC INFORMATION; Warnings and Faults; regulate the water in the tank to the; Example of a Warning:; When these conditions occur, the water heater; WILL NOT CONTINUE; any further heating cycles; Advanced Diagnostic Information
24 Servicing should only be performed by a Qualified Service Agent FAULT AND WARNING CONDITIONS – ADVANCED DIAGNOSTIC INFORMATION This water heater control has the ability to monitor almost all aspects of the water heater’s operation. In the event of an undesirable or unsafe condition that occurs, t...
Page 27 - ACCESS TO THE CURRENT FAULT OR WARNING; Back; you can always return to the fault through the display menu.
25 Servicing should only be performed by a Qualified Service Agent 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 pr...
Page 28 - FAULT CODES
26 Servicing should only be performed by a Qualified Service Agent FAULT CODES All faults, warnings, and errors are given in plain English text. Some have a Code alpha/numeric value assigned. Please read the full English text and not the alpha/numeric value when calling for assistance.Following is a...
Page 29 - VIEWING THE FAULT HISTORY – VIEWING INFORMATION ABOUT THE HEATER
27 Servicing should only be performed by a Qualified Service Agent VIEWING THE FAULT HISTORY – VIEWING INFORMATION ABOUT THE HEATER The controller for this water heater will store a history of ten of the last Fault and Warning conditions that occurred. This is stored in the Fault History. The inform...
Page 30 - TYPICAL SEQUENCE; * This number may change as software revisions are made.
28 Servicing should only be performed by a Qualified Service Agent CONTROL SEQUENCE (TYPICAL ALL MODELS) TYPICAL SEQUENCE 1. When the control is powered it should display “waiting for connection” and “UIM v2.06”*. The manufacturer and unit model will be next. The next display will include water temp...
Page 31 - CONTROL SEQUENCE FLOW CHART
29 Servicing should only be performed by a Qualified Service Agent CONTROL SEQUENCE FLOW CHART
Page 32 - CONTROLS – CENTRAL CONTROL BOARD – CCB; Remove these
30 Servicing should only be performed by a Qualified Service Agent CONTROLS – CENTRAL CONTROL BOARD – CCB The Central Control Board or CCB is contained in the housing shown below. Access to the board and the wiring harness plugs can be accomplished by removing two Phillips screws holding the cover. ...
Page 33 - This is the back of the UIM.
31 Servicing should only be performed by a Qualified Service Agent This is the back of the UIM.
Page 34 - CONTROLS – GAS VALVE SUF 120
32 Servicing should only be performed by a Qualified Service Agent CONTROLS – GAS VALVE SUF 120 The gas control valve on the SUF 120 has a built-in adjustable pressure regulator. The adjustment screw is accessed by removing the cap screw market regulator in the illustration.Inlet gas pressure may be...
Page 36 - pressure chart on page 4.; Contact the “help line” listed on the water heater for assistance.
34 Servicing should only be performed by a Qualified Service Agent CONTROLS – GAS VALVE SUF 199 AND 250 Pressure readings may be taken on the gas valve by connecting to the pressure ports on the valve. The manifold pressure on this valve is 0" WC (0 kPa) when the water heater is running. Refer t...
Page 37 - CONTROLS – GAS VALVE, ORIFICE CHART – SUF 300/400
35 Servicing should only be performed by a Qualified Service Agent CONTROLS – GAS VALVE, ORIFICE CHART – SUF 300/400 The gas control valve has a built-in field adjustable pressure regulator. The gas valve for the SUF Natural gas model is shown below. This is a 24V. solenoid operated gas valve. Low G...
Page 38 - CONTROLS – GAS VALVE, ORIFICE CHART – SUF 500; ORIFICE CHART – SUF 500; Series
36 Servicing should only be performed by a Qualified Service Agent CONTROLS – GAS VALVE, ORIFICE CHART – SUF 500 The gas control valve has a built-in field adjustable pressure regulator. The regulator may be adjusted by removing the cap screw marked “regulator”. The adjustment screw is underneath. T...
Page 39 - CONTROLS – PRESSURE SWITCHES – ALL MODELS
37 Servicing should only be performed by a Qualified Service Agent CONTROLS – PRESSURE SWITCHES – ALL MODELS All SUF models are provided with four pressure switches. These switches are essential to the safe and proper operation of the unit. The switches are wired to the central control board (CCB) i...
Page 40 - CONTROLS – PRESSURE SWITCHES – SUF 120 THROUGH 250; Check the website
38 Servicing should only be performed by a Qualified Service Agent CONTROLS – PRESSURE SWITCHES – SUF 120 THROUGH 250 Note: Check the website www.statewaterheaters.com for Technical Bulletin S023-06 “Air Pressure Switches” under “Literature/Service Handbooks”
Page 42 - POWERED ANODES
40 Servicing should only be performed by a Qualified Service Agent CONTROLS – CONNECTIONS, IGNITER, FLAME SENSOR, SIGHT GLASS, POWERED ANODES The connections for the hot surface igniter and the flame sense rod are shown below. Also shown is the burner sight glass. These features are typical for all ...
Page 43 - HOT SURFACE IGNITER / FLAME SENSOR / CONTROL TIMING; HOT SURFACE IGNITER; Once this current is established the UIM will display a flame icon.; CONTROL TIMING; Trial for ignition Gas
41 Servicing should only be performed by a Qualified Service Agent HOT SURFACE IGNITER / FLAME SENSOR / CONTROL TIMING HOT SURFACE IGNITER This water heater is equipped with an electric hot surface igniter. The igniter material is silicone carbide and should not be handled with bare hands because of...
Page 44 - Model; blower speed control connection.
42 Servicing should only be performed by a Qualified Service Agent BLOWER SPEED CONTROL SUF 199 AND 250 The input of the SUF 199 and SUF 250 is determined by blower. The input of the water heater may be determined by clocking the meter as shown on page 5 or by making sure the blower is receiving the...
Page 45 - VARIABLE FREQUENCY DRIVE – SUF 400 AND 500; The Ultra Force SUF 400 and 500 models have a
43 Servicing should only be performed by a Qualified Service Agent VARIABLE FREQUENCY DRIVE – SUF 400 AND 500 The Ultra Force SUF 400 and 500 models have a variable frequency drive (VFD) that controls the rpm of the blower motor. The VFD receives a signal from the central control board that instruct...
Page 46 - VARIABLE FREQUENCY DRIVE – BLOWER SPEED AND PRESSURE READINGS; Voltage – Frequency – Speed Instructions – VFD; Frequency is displayed
44 Servicing should only be performed by a Qualified Service Agent VARIABLE FREQUENCY DRIVE – BLOWER SPEED AND PRESSURE READINGS The instructions for the VFD are sent from the CCB to in the form of a DC current. The chart below lists the current readings, the frequency signal displayed by the VFD, a...
Page 47 - USER INTERFACE MODUL
45 Servicing should only be performed by a Qualified Service Agent WIRING DIAGRAM – SUF 120 ‑ 300 2 GREEN WHITE RED BLACK 1 12 BLACK 3 WHITE COMBUSTION BLOWER UPPER TEMPERATURE PROBE 1 RED (ECO) 4 RED (ECO) 2 BLACK3 BLACK 1 BLACK120 VAC HOT 3 WHITE 120 VAC NEUTRAL4 YEL 24 VAC4 YEL 24 VAC LOWER TEMPE...
Page 48 - MI; USER INTERFACE MODULE; VFD
46 Servicing should only be performed by a Qualified Service Agent WIRING DIAGRAM – SUF 400, 500 1 2 5 6 WHITE GREEN BLACK BLACK WHITE RED COMBUSTION BLOWER NOTE: COMBUSTION BLOWER MOTORS ON 400,000 & 500,000 Btu/hr MODELS ARE THREE PHASE (3Ø) MOTORS. BLACK, WHITE AND RED WIRES MUST BE WIRED AS ...
Page 49 - COMMERCIAL GAS HIGH EFFICIENCY WATER HEATERS; 00 Tennessee Waltz Parkway
COMMERCIAL GAS HIGH EFFICIENCY WATER HEATERS 47 500 Tennessee Waltz Parkway Ashland City, TN 37015 www.statewaterheaters.com
