State Water Heaters SUF-130- 300/400/500 - Manual

5 general safety information Fire Hazard Do not install water heater on carpeted floor.Do not operate water heater if flood damaged. For continued protection against risk of fire: Fire or Explosion Hazard Read instruction manual before installing, using or servicing water heater. Avoid all ignition ...

6 Thank you for purchasing this water heater. Properly installed and maintained, it should give you years of trouble free service. abbreViations used Abbreviations found in this instruction manual include : • ANSi - American National Standards institute• ASmE - American Society of mechanical Enginee...

7 basic operation The water heaters covered in this manual have a helical coil shaped heat exchanger that is submerged in the storage tank. The water heater’s main Burner is a radial design burner, it is mounted on the top and fires downward through the heat exchanger. This is a forced draft burner;...

8 rise in pressure. This switch is used to insure the Combustion Blower is operating properly. The control system monitors this switch and will disable heating operation if its contacts are closed before the Combustion Blower is energized or open any time during a heating cycle. See Sequence Of Oper...

9 operational buttons. Used to adjust various user settings and view operational information. See Control System Operation on page 9. 11. Temperature-Pressure relief Valve. See Temperature- Pressure relief Valve on page 9. 12. Temperature-Pressure relief Valve discharge pipe - see T&P Valve Disc...

10 storage capacitiestable 2 model U.S. Gallons Liters ASmE Standard ASmE Standard SuF-130-300 130 119.9 492 453.8 SuF-130-400 130 119.9 492 453.8 SuF-130-500 130 119.9 492 453.8 figure 6 These designs comply with the current edition of the American National Standard for Gas Water Heaters, Volume ii...

11 locating the water heater Carefully choose a location for the new water heater. The placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the appliance. Property Damage Hazard All water heaters eventually leak. • Do not inst...

12 extended Vent terminations The water heaters covered by this manual can be installed using 4 inch pipe for the intake air and/or vent piping up to a maximum of 70 equivalent feet (21.3 m). The intake air and/or vent piping can be extended up to 120 equivalent feet (36.5 m) by installing 6 inch pi...

13 supply gas line size for the water heater they serve as shown in Table 5. The maxitrol 325-7L or equivalent is recommended.See Supply Gas regulator installation on page 13. power supply The water heaters covered in this manual require a 120 VAC, 1Ø (single phase), 60Hz, 15 amp power supply and mu...

14 HOT WATER OUTLET TO TANK INLET CHECK VALVE MIXING VALVE COLD WATER INLET TEMPERED WATER OUTLET 12” TO 15” (30-38 cm) CHECK VALVE figure 8 The National Sanitation Foundation also recommends circulation of 180°F (82°C) water. Where this is done, the circulation should be very gentle so that it does...

15 Water Damage Hazard Temperature-Pressure Relief Valve discharge pipe must terminate at adequate drain. • CAUTION t&p Valve discharge pipe requirements: • Shall not be smaller in size than the outlet pipe size of the valve, or have any reducing couplings or other restrictions. • Shall not be p...

16 condensate drain The water heaters covered in this manual are condensing appliances and require a building drain to be located in close proximity to allow the condensate to drain safely. Condensate drains from the water heater at the exhaust elbow located at the bottom. The field installed conden...

17 to provide air for combustion, ventilation and dilution of flue gases. However, in buildings of unusually tight construction (for example, weather stripping, heavily insulated, caulked, vapor barrier, etc.) additional air must be provided using the methods described in the Confined Space section ...

18 Alternatively a single permanent opening, commencing within 12 inches (300 mm) of the top of the enclosure, shall be provided. See Figure 11. The water heater shall have clearances of at least 1 inch (25 mm) from the sides and back and 6 inches (l50 mm) from the front of the appliance. The openin...

20 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, building or structure used in whole or in part for residential purposes, including those owned or operated by the Co...

21 requirements on page 21. if the installation space does not provide an adequate supply of fresh air the water heater must be installed in a Direct Vent configuration. 2. if the water heater is to be installed in a beauty shop, barber shop, cleaning establishment, a laundry with dry cleaning equip...

22 (exhaust) and intake air piping shall be 0 inches. Vent or intake air piping passing through a combustible wall or ceiling must be a continuous run (no joints). minimum eQuiValent lengthsfour inch pipe The water heaters covered in this manual are certified to a minimum length of 4 inch pipe for t...

24 14. if installing 4 inch intake air pipe connect the intake air pipe to the intake air connection on the water heater. 15. if installing 6” intake air pipe transition to 4” pipe at the intake air connection on the water heater as shown in Figure 18. The field installed 4” pipe between the intake ...

25 10. install the factory supplied intake air and/or vent termination(s) using field supplied pipe and one field supplied 90° elbow as shown in Figure 19. The short section of pipe that connects between the field supplied 90° elbow and the factory supplied termination must not be excessive in lengt...

26 sidewall termination installation 1. Determine the location for the termination(s).2. if installing only vent (exhaust) piping in a Power Vent configuration through a sidewall; ensure that all exterior sidewall clearance requirements for the termination, shown in Figure 48 on page 26, are being m...

27 termination. Use only Schedule 40 PVC to extend the 6 inch concentric termination.When shortening the length of the termination carefully measure and cut the larger (intake air) pipe first. Cut the same amount of pipe off of the smaller (vent) pipe. 10. Depending on which termination(s) is being ...

28 4 inch concentric termination installation 4 INCH CONCENTRIC TERMINATION KIT FOUR PIECE KIT - FIELD ASSEMBLY REQUIRED VENT PIPE INTAKE AIR CONNECTION 3 INCH PVC VENT CONNECTION - 3 INCH PVC INTAKE AIR PIPE Y FITTING ASSEMBLY VENT CAP VENT PIPE ASSEMBLY VENT PIPE IS 2 1/2 INCH SDR-26 PIPE SUPPLIED...

29 11. Push the vent cap/vent pipe assembly into the intake air y fitting assembly until the vent cap seats properly on the large diameter intake air pipe. Ensure the vent pipe is cemented to the no stop-lip reducer bushing previously installed in the y fitting. Secure the vent cap to intake air pip...

30 four concentric terminations 1. When installing four concentric terminations through a roof or through a sidewall in close proximity they may be arranged into stacked rows of two as shown in Figure 34 or lateral rows of two as shown in Figure 35. 2. Four is the maximum number of concentric termin...

32 Venting arrangements power Vent Vertical figure 40 direct Vent Vertical figure 42 power Vent horizontal figure 41 direct Vent horizontal figure 43

33 Venting arrangements direct Vent Vertical Vent horizontal intake figure 44 direct Vent Vertical concentric figure 46 direct Vent horizontal Vent Vertical intake figure 45 direct Vent horizontal concentric figure 47

34 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 OPERABLE V C B B B B F B V V A J V H M X X V V K B E D L POWER VENT (using room air for combustion) EXTERIOR CLEARANCES FOR SIDEWALL VENT...

35 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 V C B B B B F B V V A J V H M X X V V K B E D L DIRECT VENT (using outdoor air for combustion) EXTERIOR CLEARANCES FOR SIDEWALL...

36 than 1/2 inch PVC in size. 3. do not remove, modify or alter the factory condensate trap. installation instructions 1. Ensure the water heater’s on/off switch is in the “off” position. 2. install a 1/2 inch PVC condensate drain line between the condensate drain connection on the Condensate Drain ...

37 supply gas line installation Contact your local gas utility company to ensure that adequate gas service is available and to review applicable installation codes for your area.Be sure that the gas meter has sufficient capacity to supply the rated gas input of the water heater as well as the requir...

38 gas line connection 1. The water heaters covered by this manual are shipped from the factory with a 1 1/4” supply gas connection except 500 natural gas model, see Table 1 on page 38. Short pipe nipples and reducer couplings are factory installed to increase the size of the water heater’s 24 VAC G...

39 (iE: relay coil) to this circuit. This will damage the CCB circuit board and is not covered under the limited warranty. connecting an external supervisory control The enable/disable circuit is accessed from the CCB’s J6 plug inside the CCB enclosure, see Figure 3 on page 39 to locate the CCB encl...

40 t&p ValVe discharge pipe Explosion Hazard Temperature-Pressure Relief Valve must comply with ANSI Z21.22- CSA 4.4 and ASME code. Properly sized temperature- pressure relief valve must be installed in opening provided. Can result in overheating and excessive tank pressure. Can cause serious in...

41 Setting the Operating Set Point at 120°F (49°C) will reduce the risk of scalds. Some States require settings at specific lower temperatures. table 10 Water Temperature Time to Produce 2nd & 3rd Degree Burns on Adult Skin 180°F (82°C) Nearly instantaneous 170°F (77°C) Nearly instantaneous 160°...

42 or cancel new user settings. The operational buttons are multifunctional, their current function is defined by the text that appears directly above each button on the LCD screen. the desktop screen During normal operation the control system will display the "Desktop" screen on the LCD whi...

45 user settings & control system menus temperatures menuoperating set point and differential adjustment The Operating Set Point is adjustable from 90°F (42°C) to 180°F (82°C). The factory setting is 120°F (49°C). The Differential is adjustable from 2° to 20°. The factory setting is 8°. These us...

47 display settings description/action display Select Display Settings from the main menu and press the Operational Button under "SELECT" to enter this menu. This menu contains adjustable display options for viewing information on the Uim’s LCD screen. Use the Up & Down Buttons to naviga...

48 current fault description/action display Select Current Fault from the main menu and press the Operational Button under "SELECT" to enter this menu. This menu contains non adjustable operational information. Use the Up & Down Buttons to navigate the menu.This menu contains the current...

50 prior to start up installation and start up of this water heater requires abilities and skills equivalent to that of a licensed tradesman in the field involved, see Qualifications on page 50.Do not place the water heater in operation if any part has been under water. immediately call a qualified ...

51 note: A pressure drop of more than 1.5” W. C. (0.37 kPa) when the main Burner ignites is an indication of an inadequate supply of gas and can lead to ignition failure, rough starts and/or rough operation. if a drop of more than 1.5” W. C. (0.37 kPa) in supply gas pressure occurs when the main Bur...

52 figure 57 checking the firing rate if firing rate adjustment is required follow these instructions to determine the actual firing rate of the water heater:1. Ensure there are no other gas fired appliances connected to the gas meter firing during this test. 2. Contact the gas supplier to determine...

53 lighting the water heater ON OFF Honeywell IN 1/2 PS I GAS CONTROL KNOB FOR YOUR SAFETY READ BEFORE OPERATING TO TURN OFF GAS TO APPLIANCE OPERATING INSTRUCTIONS Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Follow “B” in the safety information above on this label. If y...

54 seQuence of operation read the Sequence of Operation below before attempting to correct any operational problems. refer to the Features And Components section beginning on page 54 for the location of various water heater components described below. See the Sequence Of Operation Flow Chart on page...

55 seQuence of operation flow chart figure 58 YES NO Water is heated to set point 24 VAC Gas Valve de-energized 30 second Inter-Purge cycle 24 VAC Gas Valve de-energized Retries up to two more times 30 second Post-Purge cycle Control System Locks Out “Ignition Failure” Fault Msg is displayed Water h...

56 • Excessive manifold gas pressure - see Table 4 on page 56 and manifold Gas Pressure Adjustment on page 56. • Vent (exhaust) gas recirculation at the vent and intake air pipe terminations on Direct Vent installations - see Direct Vent installation on page 56. • Excessive equivalent lengths of int...

57 be serviced by a qualified service agent before operation can be restored. alert conditions When the control system declares an Alert condition it will display an Alert message on the control system's LCD with a question "?" mark. The water heater will continue to operate during an Alert ...

58 fault and alert messages Call the technical support phone number listed on the back cover for further technical assistance or to locate a qualified service agent in your area. possible causes - check/repair displayed fault/alert message • The water heater’s control system is polarity sensitive an...

59 fault and alert messages (cont) Call the technical support phone number listed on the back cover for further technical assistance or to locate a qualified service agent in your area. possible causes - check/repair displayed fault/alert message • The control system has detected the Blower Prover S...

60 maintenance schedule table 14 component operation interVal reQuired Tank Sediment Removal Semi Annually Flushing Tank Lime Scale Removal Semi Annually uN-LImE® Anode rods inspection Cleaning Annually Clean Scale Deposits T&P Valve Test Operation Semi Annually Test Vent System inspection Annua...

62 DISCHARGE PIPE TEMPERATURE-PRESSURE RELIEF VALVE Figure 60 if the Temperature-Pressure relief Valve on the water heater weeps or discharges periodically, this may be due to thermal expansion. note: Excessive water pressure is the most common cause of Temperature-Pressure relief Valve leakage. Exc...

63 diagrams ccb - central control board layout 1 Retry Use Yes Type Tstat Spare Ext Input 3 Retries No Vent Spare OP EN 1 2 3 4 3 2 1 6 5 4 9 8 7 12 11 10 15 14 13 J6 J7 3 2 4 1 1 2 J15 8 4 5 6 7 1 2 3 J13 3 4 1 2 J10 1 3 5 2 4 J1 1 3 4 2 J2 1 4 2 12 J3 J5 J4 S1 DIPSWITCH J16 J9 J11 S1 DIPSWITCH DET...

64 suf 130 300 wiring diagram 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 TEMPERATURE PROBE HOT SURFACE IGNITER FLAME SENSOR BLOCKED AIR INTAKE BLO...

65 suf 130 400, 500 wiring diagram 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 SHOWN OR THE MOTOR WILL TURN BACKWARDS. THIS MAY CAUSE THE CON...

66 circulation pump wiring diagrams figure 64 figure 65 CIRCULATING PUMP WIRING DIAGRAM STORAGE TANK OR BUILDING RECIRCULATION FIELD SUPPLIED TEMPERATURE CONTROL INSTALLED IN THE STORAGE TANK OR CIRCULATING LOOP RETURN LINE CIRC PUMP MOTOR L1 HOT L2 NEUTRAL 120 VAC POWER NOTE: USE SEPARATE 120 VAC P...

67 4. See Closed Systems and Thermal Expansion on page 67 5. See W ater Line Connections on page 67. 6. if a pump is being installed between a water heater and storage tank or on a building recirculation loop wire according to Figure 64 on page 67. 7. if a pump is being installed in a recirculation ...

69 4. See Closed Systems and Thermal Expansion on page 69 5. See W ater Line Connections on page 69. 6. if a pump is being installed between a water heater and storage tank or on a building recirculation loop wire according to Figure 64 on page 69. 7. if a pump is being installed in a recirculation ...

74 State Water Heaters, the warrantor, extends the following LimiTED WArrANTy to the owner of this water heater.1. THE TANk if the glass-lined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potable water therein, during the first ...