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State Industries SRT80 User's Manual

1. 23 Adjustment Procedure Initial Start Up 23 24 Cathodic Protection 24 PRCCAUUONS 24 Lighting amp Operating 25 GENERAL INFORMATION 2 2 26 Power 26 High 26 Aigh Altitude Installations 26 26 26 Maintenance 5 26 FIUSHING Lime Scale Removal Anode Inspection and 27 Drain Valve and Access Panels 27 Relief Valve 27 Circulating PUMP 27 Vent eee aie 27 INSTALLATION DIAGRAMS 2 28 32 CHECKLIST SERVICE INFORMATION 33 33 34 REPLACEMENT PARTS 34 LIMITED WARRANTY 35 FEATURES IMPORTANT IT IS REQUIRED THAT A QUALIFIED SERVICE TECHNICIAN PERFORM THE INITIAL FIRING OF THE HEATER A
2. 0 0 SS L FIGURE 22 JUNCTION BOX The junction box is where the 120 VAC is supplied to the unit and tied into the rest of the controls The junction box provides FIGURE 25 10 CABINET ASSEMBLY CABINET PANELS There are five panels that comprise the cabinet assembly The ends of the cabinet allow access to all controls and plumbing Please confirm all joints are attached correctly and sealed to prevent water leakage inside the cabinet see Figure 26 FIGURE 26 ADDITIONAL CONTROLS GAS VALVE The gas valve is used to supply the gas to the unit during heat up periods The ignition control board monitors the thermostat s call for heat and sends a signal to the gas valve when to open to allow gas flow see Figure 27 FIGURE 27 FLAME SENSOR The flame sensor is used to sense the burner flame When there is sufficient flame and the burner is properly grounded the flame sensor signals back to the ignition board that the burner is operating properly and to maintain the operation of the gas valve until the thermostat is satisfied FIGURE 28 INSTALLATION INSTRUCTIONS REQUIRED ABILITY INSTALLATION OR SERVICE OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT TO THAT OF ALICENSED TRADESMAN IN THE FIELD INVOLVED PLUMBING AIR SUPPLY VENTING GAS SUPPLY AND ELECTRICAL WORK ARE REQUIRED INSULATION BLANKETS Insulation blankets
3. T Should it be necessary to adjust the gas pressure to the burner to obtain the full input rate the steps below should be followed T Time seconds to burn 1 cubic foot of gas With a stopwatch read the gas meter and measure the amount of time required for the heater to consume 1 cubic foot of gas H Heating value of gas in Btu s per cubic foot of gas Btuh Actual heater input rate in Btuh EXAMPLE Using RTF 120 heater T 18 9 seconds X 1050 199 900 Btuh 59 kW 8 9 1050 Btu ft 3 For high altitude installations compare result to the derated input required for the elevation at the installation location c Remove the pressure regulator cover screw and adjust the pressure by turning the adjusting screw with a small screwdriver Do not exceed 4 5 1 kPa Water Column N Clockwise to increase gas pressure and input rate Counterclockwise to decrease gas pressure and input rate d Clock the meter as in step b above 23 Repeat steps d until the specified input rate is achieved Turn the manual gas valve to OFF Replace the pressure regulator cover screw Remove the pressure gauge or manometer from the manifold pressure tap Replace the set screw in the manifold pressure tap If the gas pressure regulator cannot be adjusted to give the full input rating with sufficient gas pressure at the valve check to ensure the unit is equipped wi
4. 14 ARG 14 Air FREGUIRGMOMS 14 Chemical Vapor CortOSiOn esasan eae e ees 14 15 Vent Terminals 15 15 15 16 Connection of Gas Pipe 16 16 Gas Meter Size City Gases Only 16 Gas Pressure 16 VAIVES 17 SYSTEM CONNECTIONS 5 5 17 amp 17 Relief Valya 17 Water 17 Closed Syste 17 Water Potable Heating and Space Heating 17 Water Heater Win 52 17 18 OPERATION 19 20 Sequence of 21 Error COGS 21 Fault Condition 2 2 atadas apesta Eaa 21 22 PRIOR TOSTART UP 22 Required 22 52 6
5. WITH STORAGE TANK 2 5cm ABOVE HEATER PROVIDE IS USED IN SUPPLY HEAT TRAP TO APPROX MID POINT OF HEATER ee cas ea Ho aw 55 7 P TEMPERATURE RETURN LINE FROM CONTROL BUILDING CIRCULATING LOOP IF USED 3 4 75 ALL BRONZE PLUG CIRCULATING t PUMP VALVE lt COLD WATER SUPPLY CIRCULATING PUMP WIRING DIAGRAM STORAGE TANK TEMPERATURE CONTROL lt L1 120V CIRCULATING PUMP VACUUM RELIEF L2 KAEVE NEUTRAL INSTALL PER LOCAL CODES WIRING DIAGRAM FOR BOILER TO TANK LOOP AND OR HOT WATER LOOP IF USED 28 TWO TEMPERATURE ONE HEATER HIGH TEMPERATURE WITH OR WITHOUT BUILDING RECIRCULATION A DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 5 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES CAUTION IF BUILDING COLD WATER SUPPLY HAS ABACK FLOW PREVENTER CHECK VALVE OR WATER METER WITH CHECK VALVE PROVISIONS FOR THERMAL EXPANSION OF WATER IN THE HOT WATER SYSTEM MUST BE PROVIDED PIPE RELIEF VALVE TO OPEN DRAIN NOTE IF TEMPERED WATER IS RECIRCULATED RETURN LINE SHOULD BE CONNECTED AT POINT A INSTALL IN ACCORDANCE WITH LOCAL CODES VACUUM RELIEF VALVE INSTALL PER LOCAL CODES 180 F 82 C WATER OUTLET gt IN
6. 1 Touch menu to display the Main Menu gt Temperatures System Status V 2 Touch down until User Settings is selected System Status gt User Settings V 3 Touch select to enter the User Settings sub menu gt Setpoint 120 F Diff 20 Y 4 To adjust the operating set point touch select once The gt should now be blinking indicating that you are adjusting this parameter 5 Touch up and down to adjust the parameter 6 Touch select again to accept the new parameter or touch menu to return to cancel any changes and return to the previous setting 19 Main Menu Temperatures Outlet Tank System Status LWCO ECO BlwPrv Blk Out Low Gas Freeze State Tank Drain Tank Pump Loop Pumps User Settings Setpoint Diff Temp Units Netwrt Addr Log Info Run Min Cycles kBTU Prop Rev Current Error Error History Reload Defaults Description Displays the temperature of the outlet tank probe Displays the temperature of the probe located in the tank Low Water Cut Off status The status can be either Closed or Open A Closed status indicates that there is not a low water condition in the tank An Open status indicates that there is a low water condition in the tank Emergency Cut Off status The status can be either Closed or Open A Closed status indicates safe operation An Open status indicates that the s
7. SOURCES OF IGNITION MUST BE INACTIVATED OR REMOVED GAS METER SIZE CITY GASES ONLY Be sure that the gas meter has sufficient capacity to supply the full rated gas input of the water heater as well as the requirements of all other gas fired equipment supplied by the meter If the gas meter is too small ask the gas company to install a larger meter having adequate capacity GAS PRESSURE REGULATION Main line gas pressure to the water heater should be between a maximum 14 0 3 45 kPa W C and a minimum of 6 2 W C 1 53 kPa The inlet gas pressure must not exceed the maximum value A service regulator must be installed within 10 305 cm of unit GAS VALVES WARNING SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF TURN OFF THE MANUAL GAS CONTROL VALVE TO THE APPLIANCE SYSTEM CONNECTIONS The system installation must conform to these instructions and to the local code authority having jurisdiction Good practice requires that all heavy piping be supported THERMOMETERS Not Supplied Thermometers should be obtained and field installed as shown in the installation diagrams Thermometers are installed in the system as a means of detecting the temperature of the outlet water supply RELIEF VALVE This heater is equipped with an approved temperature and pressure relief valve ASME ratings cover pressure relief CSA ratings cover release rate with temperature actuation FOR SAFE OPERATION OF THE W
8. 2 Some of the electrical components of the water heater make sounds which are normal e Contacts click or snap as the heater starts and stops e Transformers often hum WATER LEAKAGE IS SUSPECTED 1 Check to see if the water heater gate valve is tightly closed Also check the cleanout opening for leakage 2 The apparent leakage may be condensation which forms on cool surfaces of the heater and piping 3 If the outlet of the relief valve is leaking it may represent Excessive water pressure e Excessive water temperature e Faulty relief valve Excessive water pressure is the most common cause of relief valve leakage It is often caused by a closed system If a check valve is in the inlet system it will not permit the expanded hot water volume to equalize pressure with the main The relief valve must release this water or the water heater or plumbing system will be damaged Refer to MAINTENANCE RELIEF VALVE section in this manual Water heater damage due to installation in a closed system is not covered by the limited warranty The solution is to install a thermal expansion tank between the check valve and the water heater TROUBLE SHOOTING 1 Verify that all vent terminals are free of debris 2 Check supply wire polarity hot to hot and neutral to neutral and no stray current in neutral 3 Heater is properly grounded Checking these four 4 items first will often result in a timely solution to the servi
9. 8 Low Gas Pressure 2 9 9 Hot Surface IG MIRE 9 Outdoor Interface Module 9 WR IgnitiomiConttol 9 Low Water Cutoff Board and Probe 10 Thermostat E C O 10 10 JUMCUON BOX 10 TANK ASSEMBLY SYSTEM 10 Tank INSUIAtION 10 GABINET ASSEMBEY 11 Cabinet Panels 22 2 teeth 11 ADDITIONAL CONTROLS 11 11 11 INSTALLATION INSTRUCTIONS 11 11 INSUIATION 1 amp 11 11 12 Provide Unit SUPOT 12 PROOF 12 13 Rigiama Place 13 Outdoor Stang 14 68 25 20
10. BLOCKED OUTLET SWITCH The Blocked Outlet Switch is set up to shut the unit off when a pressure buildup in the exhaust vent pipe occurs This switch is a positive pressure switch that requires an increase in pressure to change the electrical contacts from normally closed to open When this switch prevents the unit from igniting most likely the exhaust is blocked Check for obstructions in the exhaust venting and exhaust vent terminal see Figure 14 BLOCKED INLET PROVER SWITCH The Blocked Inlet Prover Switch is set up to shut the unit off when a reduction in pressure in the intake vent occurs This switch is a negative pressure switch that requires an increase in negative pressure to change the electrical contacts from normally open to closed The switch is connected to the pressure tap connected to the housing of the blower When this switch prevents the unit from ignition most likely the intake is blocked Check for obstructions in the inlet vent terminal see Figure 14 FIGURE 14 The blocked Inlet Prover Switch has second function Itis provided on the heater to verify that the fan is operating When the fan increases in negative pressure the electrical contacts close signaling that the blower is operational and is at peak performance The controller requires that the electrical contacts on the switch close before it will allow the blower to come on OIM OUTDOOR INTERFACE MODULE LOW GAS PRESSURE SWITCH The OIM is a devi
11. BLOWER PLENUM The blower plenum is used to draw air into the blower inlet The inlet of the air system must maintain enough height from the ground to take into account yearly snow levels to prevent possible inlet vent blockage The air plenum allows the blower to pull air into the unit from a higher inlet location to provide protection required see Figure 9 FIGURE 9 AIR HOSE The air hose is used to provide a flexible air path from the blower to the burner assembly It is held in place with two standard hose clamps see Figure 10 FIGURE 10 FLUE ADAPTER The flue adapter is made of a flat metal plate with an exhaust adapter to mate with the exhaust elbow This is where the flue gases exit the heat exchanger This is a very hot region and is covered with a layer of high temperature fiberglass insulation see Figure 11 FIGURE 11 EXHAUST VENT The exhaust vent elbow mates with the flue adapter The elbow mates with the exhaust terminal to dispose the flue gases to the outdoors This venting section is covered with a fiberglass insulated wrap to protect from heat and condensation These pipes are sealed with a high temperature gasket integral to the vent pipe fittings see Figure 12 FIGURE 12 CONTROL SYSTEM The control system is comprised of an Outdoor Interface Module that monitors the functions of the WR ignition system pressure switches low water cutoff and temperatures in the tank FIGURE 13
12. Check that the temperature probe is connected properly 2 Tank temperature probe 2 wiring is open or closed Repair wiring 3 Defective tank temperature 3 probe Replace probe The following are fault conditions related to the ignition module Fault I M LOCK OUT I M Failed an internal hardware or software check Possible Cause Remedy 1 Ignition Module Failure 1 Replace Ignition Module Fault I M PS CLOSED The pressure switch is stuck closed Possible Cause Remedy 1 Pressure switch is shorted or not wired properly 2 Defective pressure switch 1 Check and replace wiring 2 Replace pressure switch Fault I M PS OPEN The pressure switch is stuck open Possible Cause Remedy 1 Pressure switch is not connected 2 Pressure switch is open or not wired properly 3 Defective pressure switch 4 Insufficient pressure developed by combustion blower 1 Check that the pressure switched is wired properly 2 Check and repair wiring 3 Replace pressure switch 4 Verify blower operation to the ignition module Fault 1 ECO Emergency cut off water temperature has reached an unsafe temperature Possible Cause Remedy 1 Temperature probe is damaged 2 Temperature probe wiring is damaged 3 Water in tank too hot Check that the temperature probe is not damaged and replace
13. see Figure 20 T FIGURE 23 TANK ASSEMBLY SYSTEM The Tank Assembly is an 80 gallon unit with a U shaped heat exchanger It incorporates two inlet tubes to control flow inside the tank The heat exchanger is equipped with a stainless steel baffle FIGURE 20 which is non removable The working pressure is 150 psi see Figure 24 THERMOSTAT E C O PROBES The Outback utilizes a two probe system The upper probe located on top of the unit toward the back of the cabinet consists of a thermostat and E C O The thermostat monitors the top temperature o in the tank The E C O high limit switch interrupts the main burner gas flow should the water temperature reach approximately 205 F The lower probe measures the water temperature in the lower half of the tank assembly FIGURE 24 TANK INSULATION The tank assembly is wrapped in foam insulation sealed inside a round jacket The ends of the tank consist of high temperature fiberglass insulation and foam dams to prevent foam leakage FIGURE 21 see Figure 25 TRANSFORMER The control system utilizes a 120 24 VAC step down transformer Most of the control system utilizes 24 VAC for operation See wiring diagram for those components utilizing 24 VAC and 120 VAC see Figure 22
14. as shown in Table 4 that is 6 0 for Natural Gas Also the manifold pressure should rise during the three 3 second trial for ignition If the manifold pressure is not correct then adjust accordingly See ADJUSTMENT PROCEDURE in OPERATING INSTRUCTIONS section page 18 for the manifold pressure adjustment procedure Check for the reversed polarity in the supply wiring This controller is polarity sensitive If the hot and neutral supply wires are reversed the controller will not sense flame Reverse the supply wires and try to fire the unit NOTE Always turn off and disconnect main supply wiring before servicing the unit 4 Check connecting wire to the flame sensor Verify that the flame sensor has not been damaged in any way Verify that the air supply is adequate The air inlet screen or blower wheel may be restricted Also check the installation for proper ventilation See AIR REQUIREMENTS Check the venting hoods for obstructions See VENTING Check for a maximum inlet pressure of 14 Natural Gas 3 kPa and the manifold pressure as listed in Table 4 that is for Natural Gas 4 5 Please note that the manifold pressure listed is the maximum value for the manifold pressure Do not set the manifold pressure higher than the value shown for your heater in Table 4 Overfiring the heater will result in rough ignition and or noisy operation 8 Confirm that the air inlet screen is free of obstructions A CAUTION Do not reac
15. the heater can be delimed once a year Example 2 Initial six month inspection shows 2 5cm of lime accumulation Therefore the heater should be delimed every 3 months Sediment and lime scale removal may be accomplished through the cleanout opening furnished on the heater The heater must be drained see DRAINING before removing cleanout cover on tank To dissolve and remove the more stubborn mineral deposits SRT80 120NE UNeLIME Professional Delimer should be used SRT80 120NE UNeLIME Professional Delimer is an easy to handle patented food grade acid formulated specifically for lime scale removal from all types of water using equipment Available in 1 gallon 3 8L part no 4763 and 5 gallon 19L part no 4813 sizes Hydrochloric base acids are not recommended for use on glass lined tanks SRT80 120NE Form No 4800 entitled Why When and How describes tank cleaning methods and materials UNeLIME and the booklet may be obtained through your State dealer or distributor To clean heater through cleanout opening proceed as follow 1 Turn off water inlet valve the heater electrical disconnect switch and open gate valve Drain the tank Remove cover from cleanout opening on front of tank assembly Remove lime scale or sediment using care not to damage the glass lining Inspect cleanout plate gasket Install cleanout plate Be sure to draw plate up tight by tightening screws securely Close
16. Board is that the OIM board monitors all the controls and provides that information through the LCD display where the WR Ignition Control Board provides the means to control the complete sequence of operation and switches see Figure 19 see Figure 16 FIGURE 16 HOT SURFACE IGNITER The Hot Surface Igniter is a device that ignites the main burner by high temperature 1800 F When the 120 VAC is applied to the igniter sufficient heat is generated to ignite the main burner Although improvements have been made to strengthen the igniter it is still fragile and care must be taken when handling the igniter to prevent breakage see Figure 17 us 5 wuite RopGERs OFF ON CARBIDE N 4 16 1 2 1 2 OF IGNITOR WIRE EXPOSED E OPTIONAL LOCATING TABS ue san o TIP OF IGNITOR FIGURE 17 FIGURE 19 IGNITION SYSTEM 2 ANSI 221 28 AUTOMATIC o N SEE VIEW A LOW WATER CUTOFF BOARD AND PROBE grounding screw to tie into the metal panel to assure the unit is grounded see Figure 23 The Low Water Cutoff Board and Probe monitors the water level to confirm the tank is completely full This function is very important T when the unit is first filled with water and when complete loss of nik power is encountered during freezing temperatures in case the unit drains while using the anti freeze kit
17. LABELATTACHED TO THE HEATER THESE INSTRUCTIONS ARE REPEATED IN THE LIGHTING AND OPERATING LABEL ILLUSTRATION IN THIS MANUAL INITIAL START UP A minimum gas supply pressure of 6 2 W C for natural gas is required before making any adjustment to the gas control pressure regulator Attempts to adjust the regulator during periods of low gas supply pressure could result in overfiring of the heater when the gas supply pressure returns to normal 1 Check gas line pressure with a manometer 2 Check manifold pressure see Table 4 using a pressure gauge manometer connected to the manifold pressure tap on the gas control valve If full rate adjustment is required remove cover screw from top of the gas control valve Using a small screwdriver turn adjusting screw clockwise N to increase or counterclockwise to decrease gas pressure to obtain 4 5 1 kPa for natural gas Water Column 3 Cycle the burner on and off several times to check its operation 4 Check the operation of the limit and operating controls 5 Check the input rate For appliance installation locations with elevations above 2000 feet 610 m refer to HIGH ALTITUDE INSTALLATIONS section of this manual a Attach a pressure gauge manometer to the manifold pressure tap and refer to Table 4 page 26 for correct pressure b Use this formula to clock the meter Be sure other gas consuming appliances are not operating during this interval 3600 X H
18. MAY OCCUR DURING ICE STORMS IT IS IMPORTANT TO GUARD AGAINST GAS VALVE FOULING FROM CONTAMINANTS IN THE GAS WAYS SUCH FOULING MAY CAUSE IMPROPER OPERATION FIRE OR EXPLOSION IF COPPER SUPPLY LINES ARE USED THEY MUST BE INTERNALLY TINNED AND CERTIFIED FOR GAS SERVICE BEFORE ATTACHING THE GAS LINE BE SURE THAT ALL GAS PIPE IS CLEAN ON THE INSIDE TO TRAPANY DIRT OR FOREIGN MATERIAL IN THE GAS SUPPLY LINE A DIRT LEG SOMETIMES CALLED A SEDIMENT TRAP OR DRIP LEG MUST BE INCORPORATED IN THE PIPING THE DIRT LEG MUST BE READILY ACCESSIBLE AND NOT SUBJECT TO FREEZING CONDITIONS INSTALL IN ACCORDANCE WITH RECOMMENDATIONS OF SERVING GAS SUPPLIERS REFER TO THE NATIONAL FUEL GAS CODE REGULATED GAS SUPPLY LINE __ MAIN GAS SHUTOFF gt VALVE DIRT LEG TEEN PIPE AS FIGURE 34 CONNECTION OF GAS PIPE WARNING PERFORM THE GAS LEAK TEST ANY TIME WORK IS DONE GAS SYSTEM TO AVOID THE POSSIBILITY OF FIRE OR EXPLOSION WITH PROPERTY DAMAGE PERSONAL INJURY OR LOSS OF LIFE The gas leak test is performed as follows Paint pipe connections upstream of gas control with a rich soap and water solution to test for leaks before operating main burner Bubbles indicate gas leak To stop leak tighten pipe connections After piping connections are checked turn on main burner With main burner in operation paint pipe joints including flanges pilot gas tubing connections and control inlet and outlet with rich soap and wate
19. PIPE RELIEF VALVE TO OPEN DRAIN INSTALL INACCORDANCE WITH LOCAL CODES 4 One 07 32 INSTALL THERMAL EXPANSION TANK IF CHECK VALVE OR PRESSURE REDUCING VALVE IS USED IN SUPPLY NOTE 1 TOGGLE SWITCH CONTROLS 180 F 82 C WATER CIRCULATION INSTALL ON OR CLOSE TO DISHWASHER TOGGLE SWITCH MUST BE CLOSED ON DURING THE RINSE OPERATION AND OPEN OFF WHEN DISHWASHER IS NOT OPERATING OR WHEN ON LONG STANDBY NOTE 2 INSTALL LINE TEMPERATURE CONTROL IN AN UNINSULATED TEE BEYOND THE DISHWASHER TAKEOFF IN THE SANITIZING LOOP CONTROL SHOULD BE SET AT 185 F 85 C NOTE 3 ADJUST PLUG COCK SOTHE SANITIZING LOOP FLOW RATE DOES NOT CAUSE UNNECESSARY TURBULENCE IN THE TANK NOTE 4 IF TEMPERED WATER IS RECIRCULATED RETURN LINE SHOULD BE CONNECTED AT POINT A CHECKLIST AND SERVICE INFORMATION IMPORTANT The installer may be able to observe and correct certain problems which might arise when the unit is put into operation or when it is re fired after a prolonged shutdown HOWEVER it is recommended that only qualified servicemen using appropriate test equipment be allowed to service the heater BE SURE TO TURN OFF THE ELECTRICITY WHENEVER POSSIBLE OR APPROPRIATE WHILE CHECKING EQUIPMENT warnine FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN SERIOUS PERSONAL INJURY OR DEATH CAUTION LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS O
20. With the exception of changing a user set point touching menu will bring you to the Main Menu as is illustrated here SA From the Main Menu you can use the and down arrow keys to navigate through the Main Menu arrow gt on the left displays the current item that you have selected Touching select will select the item from the menu and navigate to its appropriate sub menu Navigation through the sub menus is the same as navigation through the Main Menu H gt Temperatures System Status Note Some sub menus do not have the gt visible navigation through the screen operates through touching up and down The up and down arrows and found on the right of the screen are an indication that there are more items available on the current screen As described above touching up and down will allow you to display these items The User Settings sub menu contains items that are adjustable by the user These items can be adjusted by following these steps 1 Move the gt to the items you wish to adjust by touching up and down 2 Touch select to adjust the parameter 3 Touch up and down to adjust the value 4 Touch select to accept the new value or touch menu to cancel any changes made Changes will not be made until the select key is pressed again to accept the changed value The following example steps through the process of adjusting the operating set point
21. available to the general public for external use on gas water heaters are not approved for use on your State water heater The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank water heaters Your State water heater meets or exceeds the ASHRAE IES 90 1b 1999 standards with respect to insulation and standby loss requirements making an insulation blanket unnecessary LOCATING THE HEATER Axwarnine THERE ISA RISK IN USING FUEL BURNING APPLIANCES SUCH AS GAS WATER HEATERS IN ROOMS GARAGES OR OTHER AREAS WHERE GASOLINE OTHER FLAMMABLE LIQUIDS OR ENGINE DRIVEN EQUIPMENT OR VEHICLES ARE STORED OPERATED OR REPAIRED FLAMMABLE VAPORS ARE HEAVY AND TRAVEL ALONG THE FLOOR AND MAY BE IGNITED BY THE HEATER S IGNITER OR MAIN BURNER FLAMES CAUSING FIRE OR EXPLOSION SOME LOCAL CODES PERMIT OPERATION OF GAS APPLIANCES IF INSTALLED 18 INCHES 46 cm OR MORE ABOVE THE FLOOR THIS MAY REDUCE THE RISK IF LOCATION IN SUCH ANAREA CANNOT BE AVOIDED THE HEATER SHALL BE LOCATED OR PROTECTED SO IT IS NOT SUBJECT TO PHYSICAL DAMAGE BY AMOVING VEHICLE DO NOT LOCATE THE HEATER WHERE NOISE FROM THE EXHAUST OR INTAKE WILL BE OBJECTIONABLE THIS INCLUDES LOCATIONS CLOSE TO ORACROSS FROM WINDOWS AND DOORS CURB DIMENSIONS TOP VIEW ROOF CURB 7 14 FRONT SIDE VIEW VIEW ALLOW 36 ON ALL SIDES FOR SERVICE 30 44 ica 77 32 76 30 193 80 cm fgg LJ RI
22. due to a faulty relief valve Thermal expansion is the normal response of water when it is heated In a closed system thermal expansion will cause the system pressure to build until the relief valve actuation pressure is equaled Then the relief valve will open allowing some water to escape slightly lowering the pressure Water heater damage due to installation in a closed system is not covered by the limited warranty The solution is to install a thermal expansion tank between the check valve and the water heater ABOVE ALL DO NOT PLUG THE TEMPERATURE AND PRESSURE RELIEF VALVE THIS IS NOT A SOLUTION AND CAN CREATE HAZARDOUS SITUATION CIRCULATING PUMP The water heating system includes several circulating pumps It should be lubricated as directed by the circulator manufacturer VENT SYSTEM Examine the vent system every 3 months Points of inspection are as follows 1 Check for obstructions and or deterioration of vent terminals 2 Vent from screen should be cleaned of foreign material and soot The screen is located inside the vent outlet and is accessible from the outside of the hood Do not reach inside the vent terminal when the heater is in operation 3 Check all vent system connections for leakage and reseal as required using Hi Temp Silicone sealer or equivalent inside cabinet 27 INSTALLATION DIAGRAMS ONE TEMPERATURE ONE HEATER VERTICAL STORAGE TANK FORCED CIRCULATION WITH OR WITHOUT BUILDING R
23. probe if necessary 2 Check and repair wiring 3 Normal condition when water temperature exceeds safety limit Allow water to cool or admit water into tank and manually reset the control Determine cause for over temp condition Fault I M 115V REVERSED The line hot and the neutral line are reversed wired Possible Cause Remedy 1 Line hot and neutral reversed 1 Check wiring and reverse line hot and neutral Fault LOW FLAME Low flame has been sensed Possible Cause Remedy 1 Weak or insufficient flame detected 1 Check flame rod Fault I M IGNITER There is a problem with the ignition module Possible Cause Remedy k 1 Igniter is not wired in or the wiring is damaged Check that the igniter is wired in properly or that the wiring is not damaged 2 Igniter is damaged 2 Replace igniter 3 The ignition module is 3 Replace ignition module damaged Fault FLAME FAULT A flame was detected when there is not supposed to be a flame no call for heat Possible Cause Remedy 1 Flame sense wiring is damaged 1 Check and repair wiring 2 Ignition module is damaged 2 Replace ignition module PRIOR TO START UP REQUIRED ABILITY INSTALLATION OR SERVICE OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN IN THE FIELD INVOLVED PLUMBING AIR SUPPLY VENTING GAS SUPPL
24. roof make sure the strength of the roof and beams are adequate at that point to support the weight of 12 the unit full of water Full weight of approximately 1300 Ibs Add extra load and safety factors This is very important and the user s responsibility see Figure 29 If you are uncertain as to the load bearing capability of the roof consult a licensed structural engineering expert The unit should be placed on a solid level roof curb of adequate strength A properly designed roof curb is provided through State Order Entry IMPORTANT THE WATER HEATER SHOULD BE EMPTY OF WATER DURING LIFTING MAKE SURE ALL FASTENERS ON THE BASE OF THE UNIT ARE IN PLACE DURING LIFTING The location of the unit on the roof should be such that exhaust gas is not located near any air intakes or ventilation ducts Provide a minimum of 36 on each side of the unit for servicing Plumbing connections for water are made from inside the building Gas and electric connections are made from the rooftop Remote control wiring passes through the leak tight fitting in the base of the unit ROOF CURB Assemble and install accessory roof curb in accordance with instructions shipped with curb IMPORTANT THE GASKETING OF THE UNIT TO THE ROOF CURB IS CRITICAL FOR A WATER TIGHT SEAL INSTALL GASKET SUPPLIED WITH THE ROOF CURB AS SHOWN IN FIGURE 30 Curb should be level Refer to Accessory Roof Curb Installation Instructions for additional information as req
25. 7242 000 SUPERSEDES PART NO 196758 000 ROOFTOP SRT80 120NE ROUGH IN DIMENSIONS TOP VIEW RIGHT SIDE VIEW x e 1 76 30 193 80 35 74 90 78 of 21 40 54 35 a 12 37 31 42 r LEFT SIDE VIEW FRONT VIEW 30 30 76 96 _ 4 67 11 86 10 02 25 45 11 23 19 87 _ 28 52cm 50 47 a E 22 04 55 97 GAS VALVE PIPING SRT80 120 1 2 NPT Table 1 RECOVERY CAPACITIES NATURAL GAS L P Approx TEMPERATURE RISE DEGREES GALLONS PER HOUR LPH BTU Gallon Capacity 40 so 100 nof 120 130 4 83 80 120 120 000 80 388 291 233 194 166 145 129 116 106 97 90 35 17 kwh 303L 1469 1102 882 734 628 549 488 439 401 367 341 314 Recovery capacities are based on heater performance at 80 thermal efficiency 2 INSTALLATION INFORMATION OUTBACK SUPPLY WATER Installation Information OUTLET Model SRT80 120NE series Input 120 000 btuh Electrical 120 24VAC 60 Hz 5A Side Clearances 0 Maximum Inlet Pressure 14 WC Top Clearances 1 50 Manifold Pressure 4 50 WC Unit is Polarity Sensitive Minimum Inlet Pressure 6 2 W
26. 82 C line to the dishwashing machine and should be adjusted to deliver water between these limits 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 not cause any unnecessary turbulence inside the water heater The circulation should be just enough to provide 180 F 82 C water at the point of take off to the dishwashing machine Adjust flow by means of the plug cock in the circulating line See INSTALLATION DIAGRAMS section CIRCULATING PUMP A circulating pump is used when a system requires a circulating loop or there is a storage tank used in conjunction with the heater Refer to the piping diagrams at rear of manual for electrical hookup information and install in accordance with the current version of the National Electric Code NFPA No 70 All bronze circulators are recommended for use with commercial water heaters Although circulators are oiled and operated by the manufacturer some circulators must be oiled again before being operated Please refer to manufacturer s instructions PLUMBING MANIFOLD ASSEMBLY FLOW DIAGRAM The plumbing manifold assembly is composed of several components with each having a unique function Please see Figures 3 5 and 6 to observe the water flow to the plumbing manifold assembly and the components that make it up OUTLET MANIFOLD INLET MAN
27. AO NOILOANNOD OL WNOLLdO Se 4930 Ly 5350715 3 939 09 19 SN3dO iviswnov 373344 MNVL 340d 13437 34NSOTONI NI 084907 892 SWIS 440 LD YILYM MOT 31065 YNOILdO GION31OS 373344 TWNOLLdO HLM 9351 AINO TONLNOD NI 9319907 ATSWASSY LNdLNO LNdNI NNW 1 Wayyy H Sd 5 19021 MANOZL z 2 NOO 95398 134011 FATWA SVS 439004 SLIHM 14431 ANNOYS OL 1 021 30 LNO OL NI 207 NOLLING SY3900 a cm Aly Y8 ISNA AYYNIYd 4 HOLIMS 440 NO NOILONOr Vb ZHO9 OLOY 0343907 6956 2901 130011 25 4 BEO oe Ct wa THM ma JU 109 13001N HOLINS NOLHON 18 OPERATION MENU NAVIGATION The EMC 5000 Interface has 5 buttons on the touch panel of the interface The EMC 5000 s menus are navigated through the touch panel as shown to the right which can be found on the outdoor and remote interface box Basic navigation through the menus begins with the Main Menu
28. ATER HEATER THE RELIEF VALVE S MUST NOT BE REMOVED OR PLUGGED In addition to the appliance relief valve each remote storage tank which may be used in conjunction with this appliance shall also be installed with a properly sized rated and approved temperature ANSI and pressure ASME relief valve s This relief valve shall comply with the standard for relief valves and automatic gas shutoff devices for hot water supply systems ANSI 721 22 Your local code authority may have other specific relief valve requirements A WARNING THE PURPOSE OF A RELIEF VALVE IS TO AVOID EXCESSIVE PRESSURE OR TEMPERATURE INTO THE STEAM RANGE WHICH MAY CAUSE SCALDINGAT FIXTURES TANK EXPLOSION SYSTEM OR HEATER DAMAGE NO VALVE IS TO BE PLACED BETWEEN THE RELIEF VALVE AND THE TANK A DRAIN LINE MUST BE CONNECTED TO THE RELIEF VALVE TO DIRECT DISCHARGE A SAFE LOCATION TO AVOID SCALDING OR WATER DAMAGE THIS LINE MUST NOT BE REDUCED FROM THE SIZE OF THE VALVE OUTLET AND MUST NOT CONTAIN VALVES OR RESTRICTIONS NOR SHOULD IT BE LOCATED IN FREEZING AREAS DO NOT THREAD OR CAP THE END OF THIS LINE RESTRICTED OR BLOCKED DISCHARGE WILL DEFEAT THE PURPOSE OF THE VALVE AND IS UNSAFE THE DISCHARGE LINE SHALL BE INSTALLED TO ALLOW COMPLETE DRAINAGE OF BOTH THE VALVE AND LINE 1 INLET DRAIN FIGURE 35 WATER LINE CONNECTIONS HOT RETURN This manual provides detai
29. C No external venting required Warnings Dummy hot return required if hot return from appliance is not used Avoid flex gas line usage Avoid use of forklift truck to mount unit on outdoor stand Provide enough clearance to service unit Available Kits Anti freeze kit Remote Interface kit FOREWORD This design complies with the current edition of ANSI Z21 10 3 as an automatic circulating tank type water heater and automatic storage water heater Detailed installation diagrams are found in this manual These diagrams will serve to provide the installer with a reference for the materials and methods of piping necessary It is highly essential that all water gas piping and wiring be installed as shown on the diagrams Particular attention should be given to the installation of thermometers at the locations indicated on the diagrams as these are necessary for checking the proper functioning of the heater In addition to these instructions the equipment shall be installed in accordance with all local codes The authority having jurisdiction should be consulted before installing In the absence of local codes the installation must comply with the current editions of the National Fuel Gas Code ANSI 2223 1 54 and the National Electric Code NFPA 70 The former is available from the Canadian Standards Association 8501 East Pleasant Valley Road Cleveland OH 44131 and both documents are available from the National Fire Protecti
30. CHECKLIST AND SERVICE INFORMATION section are included at the rear of this manual By using this checklist the user may be able to make minor operational adjustments and save himself unnecessary service calls However the user should not attempt repairs which are not listed in this section WATER TEMPERATURE CONTROL DANGER DANGER THIS WATER HEATER IS EQUIPPED WITH AN ADJUSTABLE THERMOSTAT TO CONTROL WATER TEMPERATURE HOT WATER TEMPERATURES REQUIRED FOR AUTOMATIC DISHWASHER AND LAUNDRY USE CAN CAUSE SCALD BURNS RESULTING IN SERIOUS PERSONAL INJURY AND OR DEATH THE TEMPERATURE AT WHICH INJURY OCCURS VARIES WITH THE PERSON S AGE AND TIME OF EXPOSURE THE SLOWER RESPONSE TIME OF CHILDREN THE ELDERLY OR DISABLED PERSONS INCREASES THE HAZARDS TO THEM NEVERALLOW SMALL CHILDREN TO USE A HOT WATER TAP OR TO DRAW THEIR OWN BATH WATER NEVER LEAVE ACHILD OR DISABLED PERSON UNATTENDED INA BATHTUB OR SHOWER THE WATER HEATER SHOULD BE LOCATED INAN AREA WHERE THE GENERAL PUBLIC DOES NOT HAVE ACCESS TO SET TEMPERATURES The water temperature is controlled using the Touch Pad Buttons on the Display at the front of the unit See Figure 1 This control utilizes two temperature probes to determine the tank temperature The upper temperature probe is located on top of the unit in the back and the lower probe is located on the front center axis of the tank The temperature may be adjusted from 70 F 21 C to 180 F 82 C The thermosta
31. ECIRCULATION HOT WATER amp OUTLET RELIEF VACUUM RELIEF THERMOMETER VALVE VALVE INSTALL PER LOCAL CODES THERMOMETER INSTALL THERMAL EXPANSION TANK IF CHECK VALVE OR PRESSURE REDUCING VALVE IS USED IN SUPPLY fp lh i o 3 4 75 STORAGE ALL BRONZE TANK CIRCULATING PUMP PLUG 4 COLD WATER SUPPLY N TEMPERTURE CONTROL CAUTION IF BUILDING COLD WATER SUPPLY HAS ABACK FLOW PREVENTER CHECK VALVE OR WATER METER WITH CHECK VALVE PROVISIONS FOR THERMAL EXPANSION OF WATER IN THE HOT WATER SYSTEM MUST BE PROVIDED NOTE CONNECT RETURN LINE FROM HOT WATER CIRCULATING LOOP IF USED TO COLD WATER INLET LINE PIPE TO OPEN DRAIN INSTALL IN ACCORDANCE WITH LOCAL CODES ONE TEMPERATURE ONE HEATER HORIZONTAL STORAGE TANK FORCED CIRCULATION WITH OR WITHOUT BUILDING RECIRCULATION A DANGER TEMPERATURE SETTING SHOULD EXCEED RELIEF SAFE TEMPERATURE AT FIXTURES SEE WATER HOT WATER THERMOMETER VALVE TEMPERATURE CONTROL WARNING ON PAGE 5 OUTLET IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES STORAGE TANK PIPE TO OPEN DRAIN INSTALL IN ACCORDANCE WITH LOCAL CODES INSTALL THERMAL EXPANSION TANK IF CHECK VALVE OR N PRESSURE REDUCING VALVE
32. ED SAFE or eno SHOULD BE MAXIMUM WATE TEMPERATURE MAINTAINED IN THE PRE HEATERS CONTROL WARNING ON PAGE 5 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE 120 F 49 C SHOULD BE THE MINIMUM TEMPERATURE OF WATER BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER IN THE PRE HEATERS SUPPLIED TO FIXTURES CONNECT CIRCULATING LINE FROM FIXTURES IF USED TO COLD WATER SUPPLY LINE OF PRE HEATER CONNECT CIRCULATING LINE OF 180 82 C OR BOOSTED WATER IF USED TO INLET WATER LINE TO BOOSTER INSTALL INACCORDANCE WITH LOCALCODES VACUUM RELIEF VALVE INSTALL PER LOCAL CODES INSTALL THERMAL EXPANSION TANK IF CHECK VALVE OR PRESSURE REDUCING VALVE IS USED IN SUPPLY HOT WATER TO FIXTURES THERMOMETER gt MUST BE IDENTICAL HEATERS 1 OUTLET BOOSTED TEMPERATURE ee 1 t T TYPICAL ee BOOSTER HEATER gt CIRCULATING PUMP WIRING DIAGRAM CIRCULATING PUMP WIRING DIAGRAM STORAGE TANK TEMPERATURE CONTROL STORAGE TANK TEMPERATURE CONTROL 120 DISHWASHER LINE L2 GGLE TEMPERATURE 11 NEUTRAL 11 SWITCH CONTROL WITH RED PILOT LIGHT 120V CIRCULATING PUMP L2 CIRCULATING NEUTRAL PUMP WIRING DIAGRAM FOR BOILER TO TANK LOOP WIRING DIAGRAM FOR AND OR HOT WATER LOOP IF USED 180 F 82 C LOOP IF USED 31 TWO TEMPERATURE ONE HEATER HI
33. F ANY PART HAS BEEN UNDER WATER IMMEDIATELY CONTACT A QUALIFIED INSTALLER OR SERVICE AGENCY TO REPLACE A FLOODED WATER HEATER DO NOTATTEMPT TO REPAIR THE UNIT IT MUST BE REPLACED CLEARANCES These heaters are approved for outdoor installations on combustible flooring roof with the minimum clearances of 0 for sides and 1 50 for top Always disconnect electrical power before servicing the unit HARD WATER Where hard water conditions exist water softening or the threshold type of water treatment is recommended This will protect the dishwashers coffee urns water heaters water piping and other equipment See MAINTENANCE section for details of tank cleanout procedure AIR REQUIREMENTS KEEP APPLIANCE AREA CLEAR AND FREE OF COMBUSTIBLE MATERIALS GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATING WARNING FOR SAFE OPERATION PROVIDE ADEQUATE AIR FOR COMBUSTIONAND VENTILATION AN INSUFFICIENT SUPPLY OF AIR WILL CAUSE RECIRCULATION OF COMBUSTION PRODUCTS RESULTING IN CONTAMINATION THAT MAY BE HAZARDOUS TO LIFE SUCH ACONDITION OFTEN WILL RESULT IN A YELLOW LUMINOUS BURNER FLAME CAUSING CARBONING OR SOOTING OF THE COMBUSTION CHAMBER BURNERS AND FLUE TUBES AND CREATES A RISK OF ASPHYXIATION CHEMICAL VAPOR CORROSION Awaanine CORROSION OF THE FLUE WAYS AND VENT SYSTEM MAY OCCUR IF AIR FOR COMBUSTION CONTAINS CERTAIN CHEMICAL VAPORS SUCH CORROSION MAY RESUL
34. GH TEMPERATURE WITH RECIRCULATION OF SANITIZING LOOP CIRCULATING PUMP WIRING DIAGRAM STORAGE TANK TEMPERATURE CONTROL 120V L2 DISHWASHER TOGGLE SWITCH LINE TEMPERATURE NEUTRAL L1 CONTROL WITH RED PILOT LIGHT CIRCULATING VACUUM RELIEF VALVE INSTALL PER LOCAL CODES PUMP WIRING DIAGRAM FOR 180 F 82 LOOP IF USED SANITIZING LOOP TO VICINITY OF VACUUM DISHWASHER BREAKER 180 F 82 C WATER OUTLET Le Poa FINAL val SOLENOID WATER TEMPERED WATER ll OUTLET eres 4 2 SCT 12 15 gp I eer er 30cm 38cm wien hes WATER HAMMER A CHECK CHECK me NOTE 4 VALVE VALVE TOGGLE PRESSURE SWITCH REDUCING gt h NOTE 1 VALVE 11 2 DISHWASHER 3 4 75 ALL BRONZE CIRCULATING PUMP PLUG COCK NOTE 3 LINE TEMPERATURE CONTROL NOTE 2 CHECK VALVE Adpancer TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 5 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD ANANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES CAUTION IF BUILDING COLD WATER SUPPLY HAS A BACK FLOW PREVENTER CHECK VALVE OR WATER METER WITH CHECK VALVE PROVISIONS FOR THERMAL EXPANSION OF WATER IN THE HOT WATER SYSTEM MUST BE PROVIDED
35. GHT SIDE VIEW WT EMPTY 620 LB WT FULL 1300 LB FIGURE 29 FLAMMABLE ITEMS PRESSURIZED CONTAINERS OR ANY OTHER POTENTIAL FIRE HAZARDOUS ARTICLES MUST NEVER BE PLACED ON OR ADJACENT TO THE HEATER OPEN CONTAINERS OF FLAMMABLE MATERIAL SHOULD NOT BE STORED OR USED IN THE SAME ROOM WITH THE HEATER Water heater life depends upon water quality water pressure and the environment in which the water heater is installed Water heaters are sometimes installed in locations where leakage may result in property damage even with the use of a drain pan piped to a drain However unanticipated damage can be reduced or prevented by a leak detector or water shutoff device used in conjunction with a piped drain pan These devices are available from some plumbing supply wholesalers and retailers and detect and react to leakage in various ways e Sensors mounted in the drain pan that trigger an alarm or turn off the incoming water to the water heater when leakage is detected Sensors mounted in the drain pan that turn off the water supply to the entire home when water is detected in the drain pan Water supply shutoff devices that activate based on the water pressure differential between the cold water and hot water pipes connected to the water heater Devices that will turn off the gas supply to a gas water heater while at the same time shutting off its water supply PROVIDE UNIT SUPPORT Before locating the unit on the
36. IFOLD A FIGURE 3 AUTOMATIC AIR BLEED VALVE The tank assembly utilizes an automatic air bleed valve The purpose for this automatic air bleed valve is to allow air to escape the tank when the unit is filled with water When the unit is drained the opposite occurs with the valve allowing air to replace the drained water It removes the pressure vacuum that occurs in the system causing incomplete drainage This valve is automatic which allows it to sense when the tank assembly is filled with water see Figure 4 FIGURE 4 HOT RETURN RECIRCULATION PUMP The hot return recirculation pump circulates the hot water through the hot water line to eliminate delays at plumbing fixtures see Figure 5 FIGURE5 DRAIN VALVE The drain valve is used to drain the water from the tank assembly and plumbing manifold assembly see Figure 6 3 4 14 NPT WRENCH FLATS WATER HOSE COUPLING 11 1 2 THD FIGURE 6 AIR SYSTEM ASSEMBLY The air system assembly is comprised of the blower assembly blower plenum air hose and inlet vent terminal This is where combustion air is acquired for combustion see Figure 7 FIGURE 7 BLOWER ASSEMBLY The blower assembly functions by pulling in air from outside the unit to supply to the burner assembly for proper combustion The blower pushes the air through the burner assembly and heat exchanger where the flue gases then exit the exhaust system assembly see Figure 8 FIGURE 8
37. ITH THE OPERATION OF THE UNIT MAKE SURE HEATERAND SYSTEM ARE FILLED WITH WATER AND ALLAIR IS EXPELLED FROM HEATER AND PIPING NEVER OPERATE THE HEATER WITHOUT FIRST BEING CERTAIN IT IS FILLED WITH WATER AND A TEMPERATURE AND PRESSURE RELIEF VALVE IS INSTALLED IN THE RELIEF VALVE OPENING OF THE HEATER DO NOT ATTEMPT TO OPERATE HEATER WITH COLD WATER INLET VALVE CLOSED FILLING 1 Close the heater drain valve 2 Open a nearby hot water faucet to permit the air in the system to escape 3 Fully open the cold water inlet pipe valve allowing the heater and piping to be filled 4 Close the hot water faucet as water starts to flow 5 The heater is ready to be operated THE MAIN MANUAL GAS SHUTOFF VALVE MUST HAVE BEEN CLOSED FORAT LEAST FIVE 5 MINUTES THIS WAITING PERIOD IS AN IMPORTANT SAFETY STEP ITS PURPOSE IS TO PERMIT GAS THAT MIGHT HAVE ACCUMULATED IN THE COMBUSTION CHAMBER TO CLEAR IF YOU DETECT GAS AT THE END OF THIS PERIOD DO NOT PROCEED WITH LIGHTING RECOGNIZE THAT GAS ODOR EVEN IF IT SEEMS WEAK MAY INDICATE THE PRESENCE OF ACCUMULATED GAS SOMEPLACE IN THE AREA WITH ARISK OF FIRE OR EXPLOSION SEE THE FRONT PAGE FOR STEPS TO BE TAKEN DO NOT USE THIS HEATER IF ANY PART HAS BEEN UNDER WATER IMMEDIATELY CALLA QUALIFIED SERVICE TECHNICIAN TO INSPECT THE HEATER AND TO REPLACE ANY PART OF THE CONTROL SYSTEM AND ANY GAS CONTROL WHICH HAS BEEN UNDER WATER LIGHT THE UNIT INACCORDANCE WITH THE OPERATING INSTRUCTIONS
38. NG IF You DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY AFIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE PERSONAL INJURY OR LOSS OF LIFE BEFORE OPERATING ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES A This appliance does not have a pilot It is equipped with an ignitor device which automatically lights the burner Do not try to light the burner by hand BEFORE OPERATING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas suppliers instructions If you cannot reach your gas supplier call the fire department C Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service technician Force or attempted repair may result in a fire or explosion Do not use this appliance if any part has been under water Immediately contact a qualified installer or service agency to replace a flooded water heater Do not attempt to repair the unit It must be replaced OPERATING INSTRUCTIONS STOP READ THE SAFETY INFORMATION ABOVE ON THIS LABEL Set the thermostat to lowest set
39. PERATION VERIFY PROPER OPERATION AFTER SERVICING BURNER OPERATIONAL PROBLEMS 1 Refer to TROUBLESHOOTING NOT ENOUGH OR NO HOT WATER 1 Be certain the electrical disconnect switch serving the water heater is in the ON position 2 Check the fuses e The electrical disconnect switch usually contains fuses 3 The capacity of the heater may have been exceeded by a large demand for hot water e Large demands require a recovery period to restore water temperature 4 Colder incoming water temperature will lengthen the time required to heat water to the desired temperature Ifthe heater was installed when incoming water temperature was warm colder water creates the effect of less hot water 5 Look for hot water wastage and leaking or open hot water faucets 6 Sediment or lime scale may be affecting water heater operation Refer to MAINTENANCE for details 7 The heater s temperature high limit sensor has activated Reset high limit 8 Burner may not be firing at proper rate e Check gas pressure Adjust to obtain required manifold pressure 9 Burner fan wheel may be dirty e Clean fan wheel with a stiff brush WATER IS TOO HOT 1 Refer to WATER TEMPERATURE CONTROL WATER HEATER MAKES SOUNDS 1 Sediment or lime scale accumulations cause rumbling and pounding noises when the heater is operating sounds are normal however the tank bottom should be cleaned Refer to MAINTENANCE for details
40. Rooftop Water Heater Model SRT80 120 COMMERCIAL GAS WATER HEATER GAS FIRED POWER BURNER FOR DOMESTIC HOT WATER e INSTALLATION OPERATION SERVICE MAINTENANCE LIMITED WARRANTY Thank you for buying this energy efficient water heater from State Industries We appreciate your confidence in our products AWWARNING If the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal injury or death Donot store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS e Do not try to light any appliance e Do not touch any electrical switch do not use any phone in your building e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier ey GAS FIRED ae LISTED A CAUTION TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION RELATIVE TO YOUR SAFETY PLEASE READ THOROUGHLY BEFORE INSTALLING AND USING THIS APPLIANCE 500 Tennessee Waltz Parkway Ashland City TN 37015 www statewaterheaters com PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE PRINTED IN U S A 1005 PART NO 19
41. S Max Gas Supply Pressure W C RTF 120 Natural Gas 14 0 3 kPa 7 0 1 74 kPa 6 2 1 53 kPa 4 5 1 kPa HIGH ALTITUDE INSTALLATIONS A warnine THE SRT80 120E IS CERTIFIED FOR USE WITHOUT MODIFICATION FOR ALTITUDES UP TO 2000 FEET INSTALLATIONS ABOVE 2000 FEET MAY REQUIRE REPLACEMENT OF THE BURNER ORIFICE IN ACCORDANCE WITH THE NATIONAL FUEL GAS CODE ANSI 2223 1 NFPA 54 FAILURE TO REPLACE THE ORIFICE WILL RESULT IN IMPROPER AND INEFFICIENT OPERATION OF THE APPLIANCE PRODUCING CABON MONOXIDE GAS IN EXCESS OF SAFE LIMITS WHICH COULD RESULT IN SERIOUS PERSONAL INJURY OR DEATH Nominal Gas Supply Press W C Minimal Gas Supply Press W C Manifold Press W C Some gas utility companies derate their gas for altitude making it unnecessary to install high altitude orifices Call the local gas or utility company to verify BTU content Due to the input rating reduction at high altitudes the output rating of the appliance is also reduced and should be compensated for in the sizing of the equipment for applications MAINTENANCE GENERAL KEEP APPLIANCE AREACLEAR AND FREE FROM COMBUSTIBLE MATERIALS GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS SEE WARNING ON PAGE 11 LOCATING THE HEATER Water heater maintenance includes periodic tank flushing and cleaning and removal of lime scale The unit should be inspected and adjusted to maintain proper combustion Refer to the following table A periodic inspection of the v
42. S BEEN OR WILL BE MADE IN BEHALF OF THE WARRANTOR WITH RESPECT TO THE MERCHANTABILITY OF THE HEATER OR THE INSTALLATION OPERATION REPAIR OR REPLACEMENT OF THE BOILER THE WARRANTOR SHALL NOT BE RESPONSIBLE FOR WATER DAMAGE LOSS OF USE OF THE UNIT INCONVENIENCE LOSS OR DAMAGE TO PERSONAL PROPERTY OR OTHER CONSEQUENTIAL DAMAGE THE WARRANTOR SHALL NOT BE LIABLE BY VIRTUE OF THIS WARRANTY OR OTHERWISE FOR DAMAGE TO ANY PERSONS OR PROPERTY WHETHER DIRECT OR INDIRECT AND WHETHER ARISING IN CONTRACT OR TORT a Some states do not allow the exclusion or limitation of the incidental or consequential damage so the above limitations or exclusions may not apply to you b This warranty gives you specific legal rights and you may also have other rights which vary from state to state Fill in the following for your own reference Keep it Registration is not a condition of warranty The model and serial number are found on the heater s rating plate Model No Serial No Date Installed Dealers Name Dealer s Address Phone No City and State Zip Code KEEP THIS WARRANTY POSTED ADJACENT TO THE HEATER FOR FUTURE REFERENCE 35 WATER HEATERS 500 TENNESSEE WALTZ PARKWAY ASHLAND CITY TN 37015 Phone 800 821 2017 Fax 800 644 9306 www statewaterheaters com
43. STALL THERMAL EXPANSION TANK IF CHECK VALVE OR PRESSURE REDUCING VALVE IS USED IN SUPPLY THERMOMETER TEMPERED WATER OUTLET COLD WATER SUPPLY _ 12 15 30 TO 38 cm p enren POINT i LINE TEMP CONTROL Oh yu CIRCULATING RETURN LINE FROM 180 F 82 C PUMP CIRCULATING LOOP IF USED CIRCULATING PUMP WIRING DIAGRAM STORAGE TANK TEMPERATURE CONTROL 120V CIRCULATING PUMP L2 NEUTRAL WIRING DIAGRAM FOR BOILER TO TANK LOOP AND OR HOT WATER LOOP IF USED CIRCULATING PUMP WIRING DIAGRAM STORAGE TANK TEMPERATURE CONTROL 120V AC DISHWASHER LINE 12 TOGGLE TEMPERATURE NEUTRAL 11 SWITCH CONTROL WITH RED PILOT LIGHT CIRCULATING PUMP WIRING DIAGRAM FOR 180 82 C LOOP IF USED TWO TEMPERATURE TWO HEATERS HIGH TEMPERATURE WITH OR WITHOUT BUILDING RECIRCULATION J AAM RELEF 180 F 82C WATER OUTLET INSTALL PER p LOCAL CODES INSTALL THERMAL EXPANSION TANK IF CHECK VALVE OR PRESSURE REDUCING VALVE TEMPERED IS USED IN SUPPLY WATER OUTLET MUST BE IDENTICAL HEATERS MIXING COLD WATER SUPPLY 5 eg _ 7 v ee Ca ae Cen 55 A OOOO G if gt 1 CHECK CIRCULATING PUMP VALVE s Cy D LINE TEMP CONTROL Chee pean te ta 2 i warty th hg t
44. T IN FAILURE AND RISK OF ASPHYXIATION Spray can propellants cleaning solvents refrigerator and air conditioning refrigerants swimming pool chemicals calcium and sodium chloride waxes and process chemicals are typical compounds which are potentially corrosive PRODUCTS OF THIS SORT SHOULD NOT BE STORED NEAR THE HEATER ALSO AIR WHICH IS BROUGHT IN CONTACT WITH THE HEATER SHOULD NOT CONTAIN ANY OF THESE CHEMICALS IF NECESSARY UNCONTAMINATED AIR SHOULD BE OBTAINED FROM REMOTE OR OUTSIDE SOURCES VENTING A WARNING THE INSTRUCTIONS IN THIS SECTION ON VENTING MUST BE FOLLOWED TO AVOID CHOKED COMBUSTION OR RECIRCULATION OF FLUE GASES SUCH CONDITIONS CAUSE SOOTING OR RISKS OF FIRE AND ASPHYXIATION A WARNING NEVER OPERATE THE HEATER UNLESS IT IS VENTED TO THE OUTDOORS AND HAS ADEQUATE AIR SUPPLY TO AVOID RISKS OF IMPROPER OPERATION FIRE EXPLOSION OR ASPHYXIATION A CAUTION DO NOT TERMINATE THE VENTING WHERE NOISE FROM THE EXHAUST OR INTAKE WILL BE OBJECTIONABLE THIS INCLUDES LOCATIONS CLOSE TO ORACROSS FROM WINDOWS AND DOORS INLET AIR TERMINAL __ _ EXHAUST VENT TERMINAL 7 INLET AIR 400 F FLUE GASES TERMINAL amon 2 AIR LU FIGURE 33 VENT TERMINALS The vent system must terminate so that proper clearances are maintained as cited in local codes or the current edition of the National Fuel Gas Code ANSI 7223 1 54 SRT80 120NE series is designed with an
45. Y AND ELECTRICAL WORK ARE REQUIRED Before attempting start up thoroughly study and familiarize yourself with the exact sequence of operation and all other details on the specific heater being used The power burner is equipped with an ignition system which automatically sequences prepurge and ignition senses and ignites main burner flame and sequences burner operation Heater is equipped with an ignition control which locks out after three unsuccessful ignition attempts Familiarize yourself with the sequence of operation of this unit prior to start up Be certain that the water heater is full of water that air is purged from all lines there are no leaks gas and water and all inlet water lines are open The following test equipment should be on hand all test equipment must be acclimated to ambient temperature before calibration and use Two U tube manometers or calibration 0 10 0 2 5 kPa and 0 35 0 2 5 kPa W C pressure gauges e Attach gas pressure gauge or manometer to the upstream side of main gas cock and a gas pressure gauge or manometer to the manifold pressure tap You are now ready to begin the burner start up procedure OPERATING INSTRUCTIONS IMPORTANT IT IS RECOMMENDED THAT A QUALIFIED SERVICE TECHNICIAN PERFORM THE INITIAL FIRING OF THE HEATER AT THIS TIME THE USER SHOULD ASK THE TECHNICIAN ANY QUESTIONS IN REGARD TO THE OPERATIONAND MAINTENANCE OF THE UNIT A CAUTION BEFORE PROCEEDING W
46. als such as those used for boiler treatment shall NEVER be introduced into this system This unit may never be connected to any existing heating system or component s previously used with non potable water heating appliance When the system requires water for space heating at temperatures higher than required for domestic water purposes a tempering valve must be installed Please refer to installation diagrams on pages 29 through 33 in back of manual for suggested piping arrangements WATER HEATER WIRING IF ANY OF THE ORIGINAL WIREAS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED IT MUST BE REPLACED WITH 105C WIRE OR ITS EQUIVALENT EXCEPT INTHE BURNER HOUSING IN THIS CASE USE 200 C WIRE THE COMPUTER CONTROL REQUIRES ASOURCE OF STABLE CLEAN ELECTRICITY FOR PROPER OPERATION INSTALLING THE HEATER ONA BRANCH CIRCUIT THAT HAS ELECTRONIC NOISE IS SUBJECT TO FLUCTUATIONS IN VOLTAGE LEVEL OR HAS AN APPLIANCE WHICH GENERATES EMF OF RFI INTERFERENCE CAN CAUSE THE CONTROLLER TO MALFUNCTION AHIGH QUALITY POWER CONDITIONER MUST BE INSTALLED IF THE ABOVE CONDITIONS EXIST MALFUNCTIONS CAUSED BY APOOR ELECTRICAL SUPPLY ARE NOT COVERED UNDER YOUR WARRANTY A CAUTION LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION A CAUTION VERIFY PROPER OPERATION AFTER SERVICING UNIT The controller is wired to the heater The model and rating plate provides the electrical info
47. ater or part thereof The owner is responsible for all other costs Such costs may include but are not limited to a Labor charges for service removal repair or reinstallation of the water heater or any component part b Shipping delivery handling and administrative charges for forwarding the new heater or replacement part from the nearest distributor and returning the claimed defective heater or part to such distributor cost necessary or incidental for any material and or permits required for installation of the replacement LIMITATIONS ON IMPLIED WARRANTIES Implied warranties including the warranty of merchantability imposed on the sale of this heater under state law are limited to one 1 year duration for the heater or any of its parts Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you CLAIM PROCEDURE Any claim under the warranty should be initiated with the dealer who sold the boiler or with any other dealer handling the warrantor s products If this is not practicable the owner should contact State Water Heaters 500 Tennessee Waltz Parkway Ashland City TN 37015 a warrantor will only honor replacement with identical or similar water heater or parts thereof which are manufactured or distributed by the warrantor b Dealer replacements are made subject to in warranty validation by warrantor DISCLAIMERS NO OTHER EXPRESS WARRANTY HA
48. ce call A warnine JUMPING OUT COMPONENTS AND OR CIRCUITS DURING TROUBLESHOOTING CAN CAUSE SERIOUS PROBLEMS WITH THE UNIT S OPERATING SEQUENCE AND IGNITION SAFETY IF YOU DO NOT HAVE THE PROPER TEST EQUIPMENT A VOLT OHM METER AND A MICROAMMETER DO NOT ATTEMPT TO TROUBLESHOOT OR REPAIR ALTERING THE CONTROLLER AND OR CONTROLLER WIRING IN ANY WAY COULD RESULT IN INTERNAL DAMAGE TO THE MODULE CIRCUITS POSSIBLY ALTERING THE IGNITION SEQUENCE ALLOWING GAS VALVES TO OPEN BEFORE THE HOT SURFACE IGNITER IS UP TO IGNITION TEMPERATURE 33 NOTE ANY BYPASS OR ALTERATION OF THE UNITS SAFETIES WILL RESULT IN VOIDING THE APPLIANCE WARRANTY Before performing any troubleshooting familiarize yourself with the particular appliance Refer to the SEQUENCE OF OPERATION on page 21 before continuing Make sure the appliance is connected to a 120V AC power supply manual gas valve is in the ON position and all electrical connections are secure before continuing to troubleshoot this appliance caution THE WATER HEATER IS POLARITY SENSITIVE BEFORE APPLYING ELECTRICITY TO THIS HEATER BE CERTAIN THAT SUPPLY NEUTRAL WIRE TO GROUND CHECK INDICATES ZERO VOLTAGE BLOWER MOTOR WILL NOT RUN Confirm 120V AC to the controller Also to verify correct polarity check for 120 V AC between hot supply and ground If there is no voltage check for a loose connection where it connects to the controller If there is 120 volts to the
49. ce that monitors the control system It monitors pressure switch that will close its contacts when a rising pressure the ignition control assembly the tank and outlet temperatures of 6 2 inches 1 53 kPa w c is encountered The contacts will the low water cutoff device and the pressure switches The display open when the pressure falls below the fixed set point of 6 2 inches board provides operating information It records and logs error of w c The Low Gas Pressure Switch monitors the gas supply Messages for diagnostics module is equipped with a touch pressure to the heater If the gas supply falls below the 6 2 inches Pad for easy access to observe menus and current status of of w c the main burner is extinguished if heater is running or the control see Figure 18 heater will not start up see Figure 15 The Low Gas Pressure Switch is a single pole normally open 000 Service Sess ES SS OFRE FIGURE 15 ON OFF SWITCH FIGURE 18 The ON OFF Switch is a single pole single throw rocker switch WR IGNITION CONTROL BOARD This switch provides 120V from the electrical source to the heater The WR Ignition Control Board performs the ignition sequence for the water heater It controls the diagnostics of the system and monitors all the pressure switches the flame sensing device the thermostats the E C O and components that make up the control system The difference between the WR Ignition Control
50. controller check for loose connections or a locked rotor If the rotor cannot be freed the motor and blower assembly must be replaced MOTOR RUNS PREPURGE TIME ELAPSES BUT MAIN FLAME NOT ESTABLISHED 1 Check to see if main manual gas valve is open 2 Check for a loose connection at the transformer or a defective transformer Check for a loose connection at the gas valve Check for open pressure switches or open E C O Check for blockage in the intake and exhaust vent hoods If no blockage is found check vinyl tubing for cuts or crimps If this tubing is damaged it must be replaced If these steps do not eliminate the problem replace the pressure switches Check to see if there is resistance across the igniter terminal with an ohmmeter If there is no continuity the igniter is broken and should be replaced 3 4 If the igniter appears to function properly then verify that the inlet pressure is 14 Natural Gas 3 kPa maximum The gas valve supplied on this appliance is not designed to open against a higher pressure At this time also check that the inlet pressure is not lower than the minimal gas supply pressure as shown in Table 4 that is for Natural Gas 6 2 W C If the inlet pressure is not within these limits then adjust the supply pressure accordingly If the inlet pressure falls within the allowable limits then verify that the manifold pressure when the gas is fully open with the heater running is as cal
51. ct a licensed plumber or the local plumbing authority HOT WATER TEMPERED WATER OUTLET CHECK VALVE MIXING VALVE TO TANK INLET FIGURE 2 HIGH LIMIT SWITCH The top immersion well of the upper probe also contains the high limit energy cutoff sensor The high limit switch interrupts the main burner gas flow should the water temperature reach approximately 199 F 93 C Should the high limit switch activate it must be reset by cycling power to the unit The water temperature must drop below 180 F 82 C before the controller can be reset Continued manual resetting of the high limit control preceded by higher than usual water temperature is evidence of high limit switch operation For example a malfunction of the control system allowing the gas valve to stay open could cause water temperature to rise until the high limit switch opens Contact your dealer or servicer if continued high limit switch operation occurs DISHWASHING MACHINE REQUIREMENT All dishwashing machines meeting the National Sanitation Foundation requirements are designed to operate with water flow pressures between 15 and 25 pounds per square inch 103 kPa and 173 kPa Flow pressures above 25 pounds per square inch 173 kPa or below 15 pounds per square inch 103 kPa will result in improperly sanitized dishes Where pressures are high a water pressure reducing or flow regulating control valve should be used in the 180 F
52. e to circulate at all times 5 a non corrosive and non contaminated atmosphere 6 with factory approved anode s installed 7 in the United States its territories or possessions and Canada 8 sized in accordance with proper sizing techniques for commercial and or residential water heaters 9 bearing a rating plate which has not been altered defaced or removed except as required by the warrantor 10 operated with properly installed dirt leg 11 fired with the fuel for which it was factory built 12 fired at the factory rated input b Any accident to the boiler any misuse abuse including freezing or alteration of it any operation of it in a modified form or any attempt to repair tank leaks will void this warranty c This warranty is void if a device acting as a backflow prevention device check valves etc is installed in the cold water supply the heater is connected to unless an effective method of controlling thermal expansion is also installed at the heater s and operational at times The relief valve installed on the heater is not an acceptable method d This warranty shall be void and shall have no effect if the design or structure of the water heater is or is attempted to be modified or altered in any way including but not limited to by attaching non company approved appliances or equipment SERVICE AND REPAIR EXPENSES Under the limited warranty the warrantor will provide only a replacement water he
53. enting system should be made Where used the water circulating pump should be oiled OPERATION INTERVAL COMPONENT REQUIRED Tank Sediment Removal Monthly Flushing Tank Lime Scale Removal Semi Annually UN LIME Delimer Anode Rods Inspect Semi Annually Replace as Required Relief Valve Inspect Semi Annually Circulating SAE No 20 Pump 1 Oiling Four Months non detergent motor oil Blower Clean Inlet Screen and Blower Wheel As Required Soft Brush Vent System Inspect Every Months Joints should be sealed 1 If furnished with oiling provision 26 MAINTENANCE SCHEDULE Following are the instructions for performing some of the recommended maintenance Unit inspection and adjustment should be performed by a competent technician FLUSHING Turn off the heater electrical disconnect switch Open the drain valve and allow water to flow until it runs clean Close the drain valve when finished flushing Turn on the heater electrical disconnect switch DRAINING Maintenance and service procedures may also require draining the heater LenS Turn off the heater electrical disconnect switch Close the cold water inlet valve to heater Open a nearby hot water faucet to vent the system Open the gate valve on plumbing manifold If the heater is being drained for an extended shutdown it is suggested the drain valve be left open during this period e Follow FILLING instructions w
54. entire operating cycle During this entire process if the control detects an improper operating state for external devices such as the ECO switch blower prover switch etc the appropriate indication will be given on the interface modules ERROR CODES These error codes will be displayed if there is a problem with ignition or operation of the heater They will be displayed on the LCD screen on the outdoor interface module and the remote interface module The following error codes are codes related to the temperature probes Outlet Probe Tank Probe The following error codes are related directly to the Ignition Module I M Lock Out 1 PS Closed I M PS Open I M ECO 115V Reversed Low Flame I M Igniter Flame Fault Note The ignition module faults are only reset after a one hour delay period after the fault or by cycling the power FAULT CONDITIONS Fault OUTLET PROBE There is a problem with the outlet temperature probe Possible Cause Remedy 1 Outlet temperature probe 1 is not connected Wiring disconnect Check that the temperature probe is connected properly 2 Outlet temperature probe 2 wiring is open or closed Repair wiring 3 Defective outlet 3 temperature probe Replace probe Fault TANK PROBE There is a problem with the tank temperature probe Possible Cause Remedy 1 Tank temperature probe is 1 not connected Wiring disconnect
55. es are requiring energy efficient standards for water heaters In the event regulations prohibit sale of a model of equivalent size and construction State will provide a model which complies with the regulations of your area in which case the consumer will be charged the difference in price between the like replacement and the energy efficient model required The warranty on the replacement water heater will be limited to the unexpired term of the original warranty ALL OTHER PARTS If within ONE year after initial installation of this water heater any part or portion shall prove upon examination by the warrantor to be defective in material or workmanship the warrantor will repair or replace such part or portion at its option CONDITIONS AND EXCEPTIONS This warranty shall apply only when the water heater is installed in accordance with local plumbing and building codes ordinances and regulations the printed instructions provided with it and good industry practices In addition a temperature and pressure relief valve certified by A GA and approved by the American Society of Mechanical Engineers must have been installed a This warranty shall apply only when the heater is used 1 at temperatures not exceeding the maximum setting of its thermostat 2 at water pressure not exceeding the working pressure shown on the heater 3 when operated free of the damaging effects of uncontrolled water hammer 4 when filled with potable water fre
56. gate valve open water inlet line and turn on the power burner electrical disconnect switch Check for water leakage ANODE INSPECTION AND REPLACEMENT This water heater is equipped with a sacrificial anode Anodes protect the glass lined tank from corrosion by sacrificing themselves through electrolysis When the anode material is consumed there is no more protection and corrosion of the tank accelerates Inspection of the anode every 6 to 12 months allows you to identify a spent anode and replace it Replace the anode when its diameter is 3 8 1cm of an inch or annually which ever is first Aggressive very hot and softened water causes rapid consumption of the anode requiring frequent inspections Anodes are available from your distributor or State Industries To inspect or replace an anode The anodes on this heater are easily accessible from the front of the heater making replacement simple and quick 1 Turn the heater off per the lighting instructions 2 Open the drain valve to flush any sediment out of the bottom of the heater 3 Shut off the cold water supply Make sure all hot water fixtures and circulating pumps are turned off 4 Make sure tank is drained Remove the anode using a socket of the appropriate size Do not use an impact wrench 5 Inspect and replace the anode as required Use a pipe tape or sealant when reinstalling the anode 6 Close the drain valve Open a hot water fixture to allow a
57. h into the burner housing or combustion chamber if the heater is still hot Allow the heater to cool and always use gloves as the combustion chamber and the burner sleeve and housing can become very hot after operation Overfiring is a dangerous condition that must be corrected immediately GAS FAILS TO SHUT OFF 5 Check for defective gas valve or thermostat If operation is incorrect replace REPLACEMENT PARTS Replacement parts may be ordered through State dealers authorized servicers or distributors Refer to the Yellow Pages for where to call or contact the State Water Heaters 500 Tennessee Waltz Parkway Ashland City TN 37015 1 800 821 2017 When ordering parts be sure to state the quantity part number and description of the items including the complete model and serial number as it appears on the product Refer to the parts list for more information MODEL SRT80 120 LIMITED WARRANTY State Water Heaters the warrantor extends the following LIMITED WARRANTY to the owner of this water heater 1 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 THREE years after initial installation the warrantor will supply a replacement tank less burner and controls or a complete new State water heater of equivalent size and current model at the warrantor s option Some government agenci
58. hen restoring hot water service OU OO No SEDIMENT REMOVAL Waterborne impurities consist of the particles of soil and sand which settle out and form a layer of sediment on the bottom of the tank For convenience sediment removal and lime scale removal should be performed at the same time LIME SCALE REMOVAL The amount of calcium carbonate lime released from water is in direct proportion to water temperature and usage The higher the water temperature or water usage the more lime deposits are dropped out of the water This is the lime scale which forms in pipes heaters and on cooking utensils Lime accumulation not only reduces the life of the equipment but also reduces efficiency of the heater and increases fuel consumption The usage of water softening equipment greatly reduces the hardness of the water However this equipment does not always remove all of the hardness lime For this reason it is recommended that a regular schedule for deliming be maintained The depth of lime buildup should be measured periodically Heaters will have about 3 7 6cm of lime buildup when the level of lime has reached the bottom of the cleanout opening or about 1 2 5cm of lime buildup if it has reached the drain valve opening A schedule for deliming should be set up based on the amount of time it would take for a 1 2 5cm buildup of lime Example 1 Initial six month inspection shows 1 2 1 3cm of lime accumulation Therefore
59. hould display a blank line and copyright on the 2 line display 2 After one second the display should switch to indicate that the touch switches are calibrating During this process the Running LED will flash once per second until all of the switches have been calibrated This is an automatic process and can take several seconds Placing hands or fingers near the switches can delay this process 3 The control is now initialized and the display will change to display the temperatures screen if no error is detected 4 The system is checked for faults and if detected the Service light will flash If the fault is a temperature probe fault the Service LED will remain on without flashing Whenever a fault is detected the display will switch to display the Current Error screen 5 If the control determines that the actual water temperature inside the tank is below the programmed temperature setpoint less the differential a call for heat is activated This call for heat is generated even if the ignition module has detected an error however if the ignition module has detected a fault the ignition sequence will not advance Provided that no fault has been detected the Running LED will turn on 6 If the Low Water Cut Off is satisfied the ignition module will then perform selected system diagnostic checks This includes confirming the proper state of the air switches and the ECO limit device 7 all checks are successfully passed
60. internal vent construction The exhaust vent terminal and the inlet air terminal are located on the sides of the appliance Do not add vent pipe to the appliance see Figure 33 Assure the exhaust vent terminal is not in a public area where the hoods are exposed The exhaust vent terminal gets very HOT during operation and can cause burns Please use caution when working around the exhaust vent terminal It is imperative that the area around the vent terminal hoods are kept clear from obstructions so plenty of fresh air is available for combustion 15 The vent shall terminate a minimum of 12 30 5 cm above expected snowfall level to prevent blockage of vent termination A WARNING USE ONLY THE VENT TERMINALS SUPPLIED WITH THIS UNIT TERMINATION OF A VENT SYSTEM WITH A DEVICE OTHER THAN THE SUPPLIED VENT TERMINATIONS WILL AFFECT SYSTEM PERFORMANCE AND RESULT INASAFETY HAZARD PRESSURE SWITCHES The SRT80 120NE is provided with three pressure switches These switches are essential to the safe and proper operation of the unit All switches are wired in series The controller is set up to shut the unit down whenever there is a failure of any of the switches A CAUTION THE WATER HEATER IS POLARITY SENSITIVE BEFORE APPLYING ELECTRICITY TO THIS HEATER BE CERTAIN THAT SUPPLY NEUTRAL WIRE TO GROUND CHECK INDICATES ZERO VOLTAGE GAS PIPING Contact your local gas service company to ensure that adequate gas service is available and
61. ir to escape Open the cold water supply to heater and allow the tank to fill Follow the lighting instructions 7 Check your anode and drain valve for leaks DRAIN VALVE AND ACCESS PANELS The heater is equipped with a 3 4 drain valve An access panel covers the front of the tank RELIEF VALVE At least twice a year the temperature and pressure relief valve should be checked to ensure that it is in operating condition To check the relief valve lift the lever at the end of the valve several times The valve should seat properly and operate freely If water does not flow remove and inspect for obstructions corrosion Replace with a new valve of the recommended size as necessary Inspection of the valve should be performed at least every three years Do not attempt to repair the valve as this could result in improper operation and a tank explosion In areas with poor water conditions it may be necessary to inspect the T amp P valve more often than every three years A CAUTION BEFORE MANUALLY OPERATING THE VALVE MAKE SURE THAT A DRAIN LINE HAS BEEN ATTACHED TO THE VALVE TO DIRECT THE DISCHARGE AN OPEN DRAIN FAILURE TO TAKE THIS PRECAUTION COULD MEAN CONTACT WITH EXTREMELY HOT WATER PASSING OUT THE VALVE DURING THIS CHECKING OPERATION If the temperature and pressure relief valve on the heater discharges periodically or continuously it may be due to thermal expansion of water in a closed water supply system or it may be
62. led installation diagrams see back section of this manual for typical methods of application for the water heaters The water heater may be installed by itself or with a separate storage tank When used with a separate storage tank the circulation may be either by gravity or by means of circulating pump When a circulating pump is used it is important to note that the flow rate should be slow so that there will be a minimum of turbulence inside the heater CLOSED SYSTEM A CAUTION A closed system will exist if a check valve without bypass pressure reducing valve without bypass or a water meter without 17 bypass is installed in the cold water line between the water heater and street main or well Excessive pressure may develop causing premature tank failure or intermittent relief valve operation This type of failure is not covered by the limited warranty An expansion tank or a similar device may be required in the inlet supply line between the appliance and the meter or valve to compensate for the thermal expansion of water under supply pressure Water heater damage due to installation in a closed system is not covered by the limited warranty The solution is to install a thermal expansion tank between the check valve and the water heater WATER POTABLE HEATING AND SPACE HEATING All piping components connected to this unit for space heating applications shall be suitable for use with potable water Toxic chemic
63. led out in Table 4 that is 4 5 1 kPa W C for Natural Gas If the manifold pressure is not correct then adjust accordingly See ADJUSTMENT PROCEDURE in OPERATING INSTRUCTIONS selection page 21 for the manifold pressure adjustment procedure If the inlet and manifold pressures are within the limits specified in step 5 then reset the appliance Verify 24V AC at the gas valve during the three 3 second ignition trial after the igniter reaches operating temperature If 24V AC at the gas valve is not seen during this period the controller must be replaced 34 If there is 24V AC at the gas valve during the four second ignition trial and the manifold pressure does not increase above 0 W C then verify that the manual gas control valve is in the ON position If the valve is in the ON position and the previous voltage and gas pressure conditions are met then the gas valve is defective and must be replaced Note that a positive manifold pressure reading of approximately 1 5 38 kPa W C is normal during the prepurge portion of the ignition cycle due to the location of the gas orifice MOTOR RUNS BURNER LIGHTS MOMENTARLLY THEN LOCKS OUT Reset the appliance two more times to ensure that all of the air has been purged from the gas line If the burner lights momentarily but does not sustain ignition verify that the inlet pressure is not greater than 14 0 3 5 kPa W C or lower than the minimal gas supply pressure
64. on Association 1 Batterymarch Park Quincy MA 02269 TABLE OF CONTENTS PAGE ROUGH IN DIMENSIONS 2 0 0 3 FOREWORD 22 hu 4 FEATURES 5 Water Temperature 22 22 2 5 High Limit Switch E C O 6 Dishwashing Machine Requirement 5 Circulating Pump 6 PLUMBING MANIFOLD ASSEMBLY 6 Fow 5 Automatic Air Bleed Valve 5 Hot Return Recirculation PUMP 2 7 7 AIR SYSTEM ASSEMBLY c 7 Blower 7 Blower 3 5 2225 7 os acess 8 FUG 8 Exhaust 8 GONTIROL SYSTEM 8 Blocked Outlet Switch 8 Blocked Inlet Prover SWItCH 220 20 00
65. r RETURN LINE FROM 180 F 82 C WATER CIRCULATING LOOP IF USED TWO TEMPERATURE THREE HEATERS TWO PRE HEATERS ONE BOOSTER HEATER WITH OR WITHOUT BUILDING RECIRCULATION VACUUM RELIEF VALVE INSTALL PER LOCAL CODES INSTALL THERMAL EXPANSION 180 F 82C WATER OUTLET gt TANK IF CHECK VALVE OR pees WATER FIXTURES PRESSURE REDUCING VALVE IS USED IN SUPPLY ADD CHECK VALVE WHEN CIRCULATING CIRCULATING THERMOMETER MUST BE IDENTICAL HEATERS LOOP PUMP 180 PLUG 82 C cock g WATER OUTLET CHECK 6 VALVE 9 424 TYPICAL 1 BOOSTER iS HEATER RETURN LINE LINE TEMP FROM 180 F 82 C CONTROL WATER CIRCULATING LOOP IF USED FOR MULTIPLE HEATER INSTALLATION SEE MANIFOLD KIT cian SPECIFICATIONS TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CAUTION IF BUILDING COLD WATER SUPPLY HASABACK FLOW CONTROL WARNING ON PAGE 5 IF HIGHER PREHEAT PREVENTER CHECK VALVE OR WATER METER WITH CHECK TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE VALVE PROVISIONS FOR THERMAL EXPANSION OF WATERIN BOOSTER OUTPUT ADD ANANTI SCALD VALVE FOR HOT WATER THE HOT WATER SYSTEM MUST BE PROVIDED SUPPLIED TO FIXTURES 30 TWO TEMPERATURE TWO HEATERS ONE PRE HEATER ONE BOOSTER HEATER WITH OR WITHOUT BUILDING RECIRCULATION A DANGER PIPE RELIEF VALVE TO OPEN DRAIN TEMPERATURE SETTING SHOULD NOT EXCE
66. r solution Bubbles indicate gas leak To stop leak tighten flange screws joints and pipe connections Replace part if leak can t be stopped To prevent damage care must be taken not to apply too much torque when attaching gas supply pipe to gas valve inlet 16 Apply joint compounds pipe dope sparingly and only to the male threads of pipe joints Do not apply compound to the first two threads Use compounds resistant to the action of liquefied petroleum gases DISCONNECT THE APPLIANCE AND ITS MANUAL GAS SHUTOFF VALVE FROM THE GAS SUPPLY PIPING SYSTEM DURING ANY SUPPLY PRESSURE TESTING EXCEEDING 1 2 PSIG 3 45 kPa GAS SUPPLY LINE MUST BE CAPPED WHEN DISCONNECTED FROM THE HEATER FOR TEST PRESSURES OF 1 2 PSIG 3 45 kPa OR LESS THE APPLIANCE NEED NOT BE DISCONNECTED BUT MUST BE ISOLATED FROM THE SUPPLY PRESSURE TEST BY CLOSING THE MANUAL GAS SHUTOFF VALVE BEFORE PLACING THE HEATER IN OPERATION CHECK FOR GAS LEAKAGE USE SOAP AND WATER SOLUTION OR OTHER MATERIALACCEPTABLE FOR THE PURPOSE OF LOCATING GAS LEAKS DO NOT USE MATCHES CANDLES FLAME OR OTHER SOURCES OF IGNITION FOR THIS PURPOSE PURGING Gas line purging is required with new piping or systems in which air has entered A caution PURGING SHOULD BE PERFORMED BY PERSONS EXPERIENCED IN THIS TYPE OF GAS SERVICE TO AVOID RISK OF FIRE OR EXPLOSION PURGE DISCHARGE MUST NOT ENTER CONFINED AREAS OR SPACES WHERE IGNITION CAN OCCUR THE AREA MUST BE WELL VENTILATED AND
67. rmation needed to size the complete heater branch supply All electrical work must be installed in accordance with the National Electrical Code and local requirements When installed the appliance must be electrically grounded in accordance with local codes or in the absence of local codes with the National Electrical Code NFPA 70 NOTE This controller is polarity sensitive If the hot and neutral supply voltage is reversed the controller will not sense flame Verify polarity before connecting the unit 95 329343 TWNOLLdO G3sn 1 NOILJALOYd 323344 04 YIANNF _ 1 23 5 12 ON HOLIMS 3uNssaud 1971 0 NO N3dO ON HOLIMS 3 MO SYD 5012 ON HOLIMS 55 99 MOT TWNOILdO WHOMLEN OL 8NO2 NO9 ALITIOVd 0945507 SOV4AMSLNI SLOWS YAS Tar day 023 a ne 093 OL SAYNN sissvHo NI 9349907 INON 39VY443LNI 1 SISSYH 9NTAYNINYIL ANNOYS 3A08Y NOILOJNNO9 OL A
68. stall unit in an indoor location Do not locate unit air inlets near exhaust vents or other sources of contaminated air Be sure that unit is installed such that snow will not block the combustion intake or flue outlet Unit may be installed directly on wood flooring or on Class A B or C roof covering material when roof curb is used Although unit is weatherproof guard against water from higher level runoff and overhangs Exhaust vent terminal must have a minimum horizontal clearance of 4 ft from electric and gas meters gas regulators and gas relief equipment Minimum distance between unit and other electrically live parts is 48 inches Flue gases can deteriorate building materials Orient unit such that flue gas will not affect building materials Adequate combustion and ventilation air space must be provided for proper operation of this equipment After unit is in position remove rigging skids and shipping materials LIFTING BEAM BAR 1 2 SHACKLE EACH CORNER N CABLE CHAIN OR SLING FIGURE 31 13 OUTDOOR STAND This rooftop water heater is approved for an outdoor installation with an optional stand Contact State Order Entry to acquire optional stand kit The rooftop stand is constructed of a tubular steel frame along with tubular steel legs See Figure 32 The legs are three feet in length and slide into the corners of the tubular steel frame The legs may be cut to length to red
69. t was adjusted to 70 F 21 C before the heater was shipped from the factory It is recommended that lower water temperatures be used to avoid the risk of scalding It is further recommended in all cases that the water temperature be set for the lowest temperature which satisfies your hot water needs This will also provide the most energy efficient operation of the water heater and minimize scale formation SETTING THE WATER HEATER TEMPERATURE AT 120 F 49 C WILL REDUCE THE RISK OF SCALDS Some states require settings at specific lower temperatures Figure 1 shows the approximate time to burn relationship for normal adult skin Short repeated heating cycles caused by small hot water uses can cause temperatures at the point of use to exceed the thermostat setting by up to 20 F 11 C If you experience this type of use you should consider using lower temperature settings to reduce scald hazards Time to Produce 2nd amp 3rd Degree Burns on Adult Skin Nearly instantaneous Temperature Setting 180 82 170 77 160 71 150 66 140 60 C 130 54 120 49 C Nearly instantaneous About 1 2 second About 1 1 2 seconds Less than 5 seconds About 30 seconds More than 5 minutes FIGURE 1 Valves for reducing point of use temperature by mixing cold and hot water are available see Figure 2 Also available are inexpensive devices that attach to faucets to limit hot water temperatures Conta
70. th the correct orifice A warnine UNDER NO CIRCUMSTANCES SHOULD THE INPUT EXCEED THE RATE SHOWN ON THE HEATER RATING PLATE OVERFIRING COULD RESULT IN DAMAGE OR SOOTING OF THE HEATER CATHODIC PROTECTION A CAUTION HYDROGEN GAS CAN BE PRODUCED INAHOT WATER SYSTEM SERVED BY THIS HEATER THAT HAS NOT BEEN USED FORA LONG PERIOD OF TIME GENERALLY TWO WEEKS OR MORE HYDROGEN GAS IS EXTREMELY FLAMMABLE To reduce the risk of injury under these conditions it is recommended that a hot water faucet be opened for several minutes before using any electrical appliance connected to the hot water system If hydrogen 24 is present there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow There should be no smoking or open flame near the faucet at the time it is open PRECAUTIONS IF THE UNIT IS EXPOSED TO THE FOLLOWING DO NOT OPERATE HEATER UNTILALL CORRECTIVE STEPS HAVE BEEN MADE BY A QUALIFIED SERVICEMAN 1 FLOODING TO OR ABOVE THE LEVEL OF THE BURNER OR CONTROLS 2 EXTERNAL FIRING 3 DAMAGE 4 FIRING WITHOUT WATER 5 SOOTING NEVER OPERATE THE HEATER WITHOUT FIRST BEING CERTAIN IT IS FILLED WITH WATER AND A TEMPERATURE AND PRESSURE RELIEF VALVE IS INSTALLED IN THE RELIEF VALVE OPENING OF THE HEATER SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF TURN OFF THE MANUAL GAS CONTROL VALVE TO THE APPLIANCE FOR YOUR SAFETY READ BEFORE OPERATING A WARNI
71. the combustion blower is energized for the pre purge cycle 8 When the pre purge cycle is complete power is applied to the igniter element for the igniter warm up period 9 At the conclusion of the igniter warm up period the gas valve will open allowing gas to enter the burner chamber 10 The igniter will remain on for a short predetermined time period then it will be turned off 11 The control will monitor the flame sense probe to confirm a flame is present If a flame is not verified within the predetermined flame prove time the gas valve will immediately be closed and the blower will continue to run for approximately 10 seconds The control will then return to step 6 12 If a flame is confirmed the control will enter the heating mode where it will continue heating the tank until the setpoint temperature is reached At this point the gas valve is closed and the control enters the post purge cycle 13 The combustion blower will run for the duration of the postpurge cycle to purge the system of all combustion gasses When the post purge cycle is complete the blower is deenergized and will coast to a stop 14 The control will now enter the standby state as indicated by the Standby LED The control will continue to monitor the tank water temperature and the state of the other system devices If the temperature drops below the setpoint value less differential the control will automatically return to step 5 and repeat the
72. ting Turn off all electrical power to the appliance This appliance is equipped with a device which automatically lights the burner Do not try to light the burner by hand GAS CONTROL KNOB 6 Push in control knob slightly and turn clockwise Q to OFF Wait five 5 minutes to clear out any gas If you smell gas STOP Follow B in the safety information above on this label If you don t smell gas go on to the next step Turn gas control knob counterclockwise Q to ON Turn on all electric power to the appliance Set thermostat to desired setting If the Appliance will not operate follow the instructions Turn Off gas to Appliance and call your service technician or gas supplier TO TURN OFF GAS TO APPLIANCE 1 Set the thermostat to lowest setting 2 TURN OFF ALL ELECTRICAL POWER TOTHE APPLIANCE IF SERVICE ISTO BE PERFORMED 3 Push in gas contol knob slightly and turn clockwise Q to OFF do not force 25 GENERAL INFORMATION POWER BURNER The SEQUENCE OF OPERATION is provided on page 21 and the INITIAL START UP procedure of the unit on page 23 HIGH LIMIT The high limit switch not adjustable is factory set to cutout at 199 F 93 C The controller must be manually reset by cycling the power to the unit and the water temperature must be below 180 F 82 C TABLE 4 GAS SUPPLY SPECIFICATION
73. to review applicable installation codes for your area TABLE 3 MAXIMUM CAPACITY OF PIPE IN CUBIC FEET OF GAS PER HOUR Based upon a Pressure Drop of 0 5 inch Water Column and 0 6 Specific Gravity Gas LENGTH IN FEET 2750 2200 1900 1680 1520 1400 1300 1220 1150 1020 950 850 800 LENGTH IN METERS 1 2 51 35 Size the main gas line in accordance with Table 3 The figures shown are for straight lengths of pipe at 0 5 in 125 kPa W C pressure drop which is considered normal for low pressure systems Note that fittings such as elbows and tees will add to the pipe pressure drop DO NOT USE FLEXIBLE GAS PIPING WARNING THE HEATER IS NOT INTENDED FOR OPERATION AT HIGHER THAN 14 0 WATER COLUMN 1 2 POUND OR 3 45 kPa PER SQUARE INCH SUPPLY GAS PRESSURE HIGHER GAS SUPPLY PRESSURES REQUIRE SUPPLEMENTAL REDUCING SERVICE REGULATION EXPOSURE TO HIGHER GAS SUPPLY PRESSURE MAY CAUSE DAMAGE TO THE GAS CONTROLS WHICH COULD RESULT IN FIRE OR EXPLOSION IF OVERPRESSURE HAS OCCURRED SUCH AS THROUGH IMPROPER TESTING OF GAS LINES OR EMERGENCY MALFUNCTION OF THE SUPPLY SYSTEM THE GAS VALVE MUST BE CHECKED FOR SAFE OPERATION MAKE SURE THAT THE OUTSIDE VENTS ON THE SUPPLY REGULATORS AND THE SAFETY VENT VALVES ARE PROTECTED AGAINST BLOCKAGE THESE ARE PARTS OF THE GAS SUPPLY SYSTEM NOT THE HEATER VENT BLOCKAGE
74. uce the overall height of the stand if necessary The rooftop unit is located on the stand the same way as located on the roof curb Please locate panels at one end of the stand This area is used to run the water lines into the rooftop unit It provides added protection to the water lines For additional information see Optional Stand Kit Instructions FIGURE 32 When installing the heater consideration must be given to proper location Location selected should be as close to the intake and exhaust termination points as practicable with adequate air supply and as centralized with the piping system as possible LOCATE IT NEARADRAIN THE HEATER SHOULD BE LOCATED IN AN AREA WHERE LEAKAGE FROM THE HEATER OR CONNECTIONS WILL NOT RESULT IN DAMAGE TO THE ADJACENT AREA OR TO LOWER FLOORS OF THE STRUCTURE When such locations cannot be avoided it is recommended that a suitable drain pan adequately drained be installed under the appliance State Water Heater provides an after market anti freeze kit for use when there is a loss of power This kit provides drainage to the tank and plumbing manifold to prevent freeze up When power is restored the system is equipped with automatic air bleed and a low water cut off device to prove the tank is full of water prior to startup See kit instructions for complete details 14 warning DO NOT USE THIS APPLIANCE I
75. uired CAUTION BE CAREFUL WHEN SETTING THE UNIT ON THE ROOFCURB SO THAT THE PLUMBING FITTINGS ON THE BOTTOM OF THE UNIT DO NOT REST ON THE ROOF CURB 7 1 OVERHANG ON REAR OF UNIT ONLY GASKET APPLIED TO FULL PERIMETER OF ROOFCURB PRIOR TO UNIT INSTALLATION POSITION THE WATER HEATER ON THE ROOF CURB SO THAT THERE IS MINIMAL OVERHANG ON THE FRONT END THIS CORRECTLY POSITIONS THE PLUMBING INSIDE THE ROOF CURB CAUTION SET THE UNIT SO PLUMBING FITTINGS ARE INSIDE THE ROOFCURB OPENING DAMAGE MAY OCCUR IF THE FITTINGS ARE SET ON TOP CURB PERIMETER SURFACE THE UNIT SHOULD NOT OVERHANG ON THE PLUMBING FRONT END NO OVERHANG ON PLUMBING FRONT END FIGURE 30 RIG AND PLACE UNIT Inspect unit for transportation damage File any claim with transportation agency Keep unit upright and do not drop Spreader bars are not required if top crating is left on unit Rollers may be used to move unit across the roof Level the unit by using unit frame Lifting holes are provided in base rails as shown in Figure 31 All panels must be in place when rigging The unit cannot be placed on the curb with a fork lift or other lifting device through the fork lift openings Doing so would interfere with placement on the roof curb Maintain clearance around and above the unit to provide minimum distance from combustible materials proper air flow and service access Do not in
76. y the control The status is either Enabled or Disabled An Enabled status indicates the control is asking for the loop pumps to be turned on A Disabled status indicates that the control is asking for the loop pumps to be turned off The setpoint is the temperature to which water will be heated and stored Allowable range is 100 F to 180 F Temperature difference below the operating set point before the system will call for heat Allowable range of O F to 50 F Temperature unit of the system for display This can either be F or C PC Networking only Network address of the heater on State Industries Networking network This number must be unique to all devices on the network Allowable range of 1 to 32 on the network or 0 to place the device off the network The total number of minutes of heating The total number of cycles the heater achieved cycle is defined as a transition from an idle state to a heat state for reference only This is a factory setting for reference only This will display the current software revision The current error screen displays the current error if the system is in an error state The error history screen will display the previous nine recorded errors by the system along with the running minutes of when the error occurred Allows for re setting the system to its factory defaults 20 SEQUENCE OF OPERATION 1 When the control is powered up the outdoor interface and the remote interface s
77. ystem is locked out due to the water temperature reaching an unsafe temperature value Blower prover status The status can be either Closed or Open A Closed status indicates that combustion air is adequate An Open status indicates that combustion air is inadequate Blocked outlet status The status can be either Closed or Open A Closed status indicates normal operation An Open status indicates that the exhaust outlet is blocked Low gas status The status can be either Closed or Open A Closed status indicates normal operation An Open status indicates low supply gas pressure Anti Freeze kit only This indicates the status of the freeze condition aquastat The status can either be OK or Freeze An OK status indicates normal operation A Freeze condition indicates that freezing conditions exist and the system is responding Anti Freeze kit only Tank drain status This status can either be Closed or Open A Closed status indicates that the system is in normal operation and the tank drain valve is closed An Open status indicates that the system is draining the tank to deter freezing Status of the tank pump This indicates if the tank pump is enabled by the control The status is either On or Off On status indicates the control is asking for the tank pump to be turned on An Off status indicates that the control is asking for the tank pump to be turned off Status of the loop pumps This indicates if the loop pumps are enabled b

State Industries SRT80 User's Manual

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