Perfect Fit TES50-45-G-1 208 Volt 3 Phase Instructions / Assembly
Contents
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3. C CONNECTED TO HIGH LIMIT FIELD SINGLE PHASE CONNECTIONS m D m m 9 20 7 C9 9 1 02 OES Di LIMIT CLASS FUSES CONNECTED TO RATED VOLTAGE ON TRANSFORMER ELEMENTS 9 10 be Test THERMOSTAT AND HIGH LIMIT CONTROLS A OPERATE AT INCOMING LINE VOLTAGE NOTE THIS WATER HEATER MAY BE SUPPLIED BY A BRANCH CIRCUIT HAVING OVER 300 VOLTS BETWEEN CONDUCTORS PROVIDED THE SYSTEM HAS A GROUND NUETRAL AND NO CONDUCTOR IS OVER 300 VOLTS TO GROUND 19 20
4. 1 3 cafa CS CS Ca CN Ce CS CS SR SH CS ES NN CS IE SR CS NN NN IN CS CS 190005 Unuiuniy 191005 Unuiuniy 191005 nuiuuniy 190005 WN ER KE GER M LN MN LN DI EA ER N EA oN EA N ES EN JeAQ Jeu MHL ed 9 Sz uo peseg 91 012 02 VddN ISNV O 3 N UO peseg ping pue uoueig Oe 061 AE co LO N N S 0 S S 0 9 S S 9 0 Tm Ca CS Ca CS NN CS CS Ce CS Ca CS IN CS CS NN CR CS CR CS CR CS CS oe 91 10 4i 44 0 81 96 91 98 FL S9 Sg 96 Sv SZ 95 Sg D 0c Installation A WARNING Tank MUST be full of water before power is turned on Heating elements WILL BE DAMAGED if energized for even a short time while tank is dry The water heater s warranty does not cover damage or failure resulting from operation with an empty or partially empty tank Refer ence is made to the limited warranty for complete terms and conditions 6 ELECTRICAL CONNECTIONS amp WIRING Check rating plate of water heater against supply for correct voltage The water heater is completely internally wired from the factory to the field connec tion terminal block for a three phase
5. Details of the problem as you can best describe them List of people with dates who have been contacted regarding your problem For your safety DO NOT attempt repair of Thermostats High Limit Controls or any other control component Refer repairs to qualified service personnel Wiring Diagram Surface Mounted Thermostat Models G Models 3 amp 6 Element Models Only 5 CONTROL 96 CONNECTED TO TRANSFORMER TERMINAL 1 ON PRING AO THERMOSTAT BLOCK SINGLE PHASE CONNECTIONS THREE PHASE CONNECTIONS Q Ow oz Or On 3 04 IG5 dolo DOO dolo CONNECTED TO B z sl e z RATED VOLTAGE ON TRANSFORMER a H 54 CONTACTORS Cowbucros OOOO ID LLL DICOLED OOO 090202623 29 e CLASSG FUSE BLOCKS FUSES Ei C 1 O 0 THERMOSTAT ELEMENTS T THERMOSTAT AND HIGH LIMIT CONTROLS OPERATE AT INCOMING LINE VOLTAGE No of Elements Follow Wire Routes 1 thru 12 A thru J 1 thru 24 A thru N NOTE To insure proper thermostat response be sure to replace insulation pad tightly over elements after servicing THIS WATER HEATER MAY BE SUPPLIED BY A BRANCH CIRCUIT HAVING OVER 300 VOLTS BETWEEN CONDUCTORS PROVIDED THE SYSTEM HAS A GROUND NUETRAL AND NO CONDUCTOR IS OVER 300 VOLTS TO GROUND 12 Wiring Diagram Surface Mounted Thermostat Models G Models 9 Element Configuration Only 2 CONTROL 5 TRANSFORMER CONNECTED TO
6. quirements for use by individuals a thermostatically controlled mixing valve is recommended to reduce the risk of scald injury Contact a licensed plumber or the local plumbing authority for fur should not be threaded or concealed and should be protected from ther information freezing No valve of any type restriction or reducer coupling should be installed in the discharge line Local codes shall govern the in Thermometer s should be installed so that they indicate the tem stallation of relief valves perature of the water at or near the outlet of the water heater and storage tank s if provided See Fig 2 or 3 5 TO FILL WATER HEATER Make certain drain valve is com pletely closed Open shut off valve in cold water supply line Open 4 RELIEF VALVE A new combination pressure and temperature each hot water faucet slowly to allow air to vent from the water relief valve complying with the Standard for Relief Valves and Au heater and piping A steady flow of water from the hot water tomatic Gas Shutoff Devices for Hot Water Supply Systems ANSI faucet s indicates a full water heater Installation MIN ESCH Car a MIN NEN E WH RH E pg L we NE a a 4 BON EA E mae GE LS CH mae Le BENE CH BENI Re Fa KM Ee ER KM Ss CR Ee CS EM Lu we KM we CC Lu uU Lu eseud ec JO y
7. wins THERMOSTAT 6666569 BLOCK 8 S 755 S s E GRD Q 4 BLK C BL BL BL Hoots 2 On V Owy On Om dc olo dele ge Sette de CONTACTORS 3 CONNECTED TO 67 44 45 69 69 51 20 41 42 69 2 49 63 53 59 OA 57 39 44 45 49 50 51 GA 48 52 53 69 E THERMOSTAT To insure proper thermostat response be sure to replace insulation pad tightly over elements after servicing S 4 NOTE NOTE THIS WATER HEATER MAY BE SUPPLIED BY A BRANCH CIRCUIT HAVING OVER 300 VOLTS BETWEEN CONDUCTORS PROVIDED THE SYSTEM HAS A GROUND NUETRAL AND NO CONDUCTOR IS OVER 300 VOLTS TO GROUND Wiring Diagram Immersion Thermostat Models G Models 1 Element Configuration CONTROL TRANSFORMER CONNECTED TO RATED VOLTAGE ON FIELD TRANSFORMER WIRING BLOCK SINGLE PHASE CONNECTIONS THERMOSTAT ELEMENTS 7 8 ak THERMOSTAT AND HIGH LIMIT CONTROLS OPERATE AT INCOMING LINE VOLTAGE NOTE THIS WATER HEATER MAY BE SUPPLIED BY A BRANCH CIRCUIT HAVING OVER 300 VOLTS BETWEEN CONDUCTORS PROVIDED THE SYSTEM HAS A GROUND NUETRAL AND NO CONDUCTOR IS OVER 300 VOLTS TO GROUND 14 Wiring Diagram Immersion Thermostat Models G Models 3 amp 6 Element Configurations Only Up to 30 Amp Fuses CONTROL TRANSFORMER 85558 XH RATED VOLTAGE ON 60 066 FIELD TRANSFORMER WIRING BLOCK
8. allowing several gallons of water to flush through the discharge line Make certain the dis 10 DANGER charged water is directed to a suitable drain Before manually operating the relief valve make certain no one will be exposed to the danger of coming in con tact with the hot water released by this valve The water may be hot enough to create a SCALD hazard The water released should be directed to a suitable drain to pre vent injury or damage NOTE If the temperature and pressure relief valve on the water heater discharges periodically this may be due to thermal ex pansion in a closed water system Contact the water supplier or local plumbing inspector on how to correct this DO NOT plug the relief valve outlet 5 TANK Good maintenance requires that the tank be cleaned of deposits Unless the water supply is very soft 0 to 5 grains hard ness scale or lime deposits will accumulate in the tank Hard water scale is deposited at an increasingly high rate in proportion to increased water temperature and accumulation of these de posits may reduce efficiency and shorten the life of the water heater CLEANING THE TANK The water heater is not supplied with a clean out provision on the tank To remove accumulated deposits from the tank it is suggested that a few gallons of water be drained from the water heater s tank through the drain valve every month to remove those deposits If chemical lime dissolving cle
9. connection For single phase connections refer to the wiring diagrams in this manual and A Disconnect the red and black wires from the field terminal block legs 1 2 and 3 B Reconnectall black wires to leg 1 of the field terminal block C Reconnect all red wires to leg 2 of the field terminal block D Connectincoming power to field terminal block legs 1 and 2 Nothing will be connected to leg 3 Provide a separate branch circuit with overcurrent protective de vice and suitable disconnecting means for each water heater Refer to Table 1 above for minimum branch circuit sizing Water heater internal wiring diagrams are located in the back of this manual Model No Serial No 7 GROUNDING A CAUTION The presence of water in the piping and water heater does not provide sufficient conduction for a ground Nonmetallic piping dielectric unions flexible connec tions Etc can cause the water heater to be electrical ly isolated The branch circuit should include either A Metallic conduit or metallic sheathed cable approved for use as a grounding conductor and installed with fittings approved for the purpose B Nonmetallic sheathed cable or metallic conductor or metallic sheathed cable not approved for use as a grounding conductor shall include a separate conductor for grounding It shall be con nected to the grounding means of the water heater 1 4 green screw and that of the electrical dist
10. 1146 8 01 05 A General Safety Precautions Be sure to read and understand the entire Use amp Care Manual before attempting to install or operate this water heater Pay particular attention to the following General Safety Precautions Failure to follow these warnings could result in serious bodily injury or death Should you have any problems understanding the instructions in this manual STOP and get help from a qualified installer or service technician or the local utility To meet commercial water use needs all Immersion thermo stat model water heaters are adjustable to deliver water up to 190 F Surface mounted thermostat model water heaters adjustable to deliver 160 F for the 50 gallon models and 180 F for the 85 and 120 gallon models However water tempera tures over 125 F can cause severe burns instantly or death from scalds This is the preferred starting point for setting the control for supplying general purpose hot water A DANGER Water temperature over 125 F can cause severe burns instantly or death from scalds Children disabled and elderly are at highest risk of being scalded See instruction manual before setting temperature at water heater Feel water before bathing or showering Temperature limiting valves are available see manual Safety and energy conservation are factors to be considered when setting the water temperature on the thermostat The most energy efficient operation will res
11. ATION A The water heater should be installed in a clean dry location as close as practical to the area of greatest hot water demand Long hot water lines should be insulated to conserve water and energy The water heater and water lines should be protected from exposure to freez ing temperatures DO NOT install the water heater in an outdoor un protected area B The water heater should not be located in an area where leakage of the tank or connections will result in damage to the area adjacent to it or to lower floors of the structure When such areas cannot be avoid ed itis recommended that a suitable catch pan adequately drained be installed under the water heater NOTE Auxiliary catch pan installation MUST conform the ap plicable local codes C FOR THE TANK TYPE MODELS the minimum distance to provide adequate clearance for protection of combustible material is 0 inch es from jacket and 18 inches from access door However addition al clearance for accessibility to permit inspection and servicing such as removing heating elements or checking controls must be provid ed All models are approved for installation on combustible flooring FOR THE BOOSTER MODELS A minimum clearance of 18 inches on the right side of the Booster model is required for removal of the heating element s when required for service or inspection Four separate 5 16 18 threaded openings are provided on the top rear and bottom panels so the heater ma
12. Commercial Electric Water Heater USE amp CARE MANUAL SS WITH INSTALLATION INSTRUCTIONS FOR THE CONTRACTOR 18GO The purpose of this manual is twofold one for the installing contractor to provide requirements and recommendations for the proper installation and adjustment of the water heater and two for the owner operator to explain the features operation safety precautions maintenance and trouble shoot ing of the water heater This manual also includes replacement parts infor mation It is imperative that all persons who are expected to install operate or ad just this water heater read the instructions carefully so that they may un derstand how to do so Tank Type Models Booster Models Surface Mounted or Immersion Thermostats Immersion Thermostats Only Recognize this symbol as an Indication of Do Not Destroy this Manual Please read careful Important Safety Information ly and keep in a safe place for Future Reference NOTICE This water heater is designed for use in a commercial application and the installation and mainte nance of it should be performed by qualified licensed service personnel If the foregoing assumption is not appropriate then we recommend that you obtain and retain our Residential Use amp Care Manual CALIFORNIA PROPOSITION 65 WARNING This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Printed in USA AP1
13. Diagram Immersion Thermostat Models G Models 9 Element Configuration Only o p CONTROL 2 18 TRANSFORMER o 15 hr 9 FIELD z WIRING S BLOCK o lt x a GRD E CONNECTED TO RATED VOLTAGE ON TRANSFORMER BL Gi 0 ru 9 eo y CONTACTORS 7 69 69 63 69 50 6 69 69 2 69 27 28 69 69 69 87 69 69 63 69 CI 69 69 9 BLK Se 0 5 BLK OPO e BLK O FUSE BLOCKS THERMOSTAT Gg THERMOSTAT AND HIGH LIMIT OPERATE AT INCOMING LINE V NOTE THIS WATER HEATER MAY BE SUPPLIED BY A BRANCH CIRCUIT HAVING OVER 300 VOLTS BETW CONDUCTORS PROVIDED THE SYSTEM HAS A GROUND NUETRAL AND NO CONDUCTOR IS O 300 VOLTS TO GROUND Wiring Diagram Immersion Thermostat Models with Staging 3 Stage GS Models CONTROL TRANSFORMER SINGLE PHASE CONNECTIONS ALLBLACK ALLRED FUSE BLOCKS 7 THERMOSTATS CONNECTED TO G Ga RATED VOLTAGE ON TRANSFORMER 9 _ 9 e 9 7 23 s I 1 i THERMOSTAT AND HIGH LIMIT CONTROLS OPERATE AT INCOMING LINE VOLTAGE NOTE THIS WATER HEATER MAY BE SUPPLIED BY A BRANCH CIRCUIT HAVING OVER 300 VOLTS BETWEEN CONDUCTORS PROVIDED THE SYSTEM HAS A GROUND NUETRAL AND NO CONDUCTOR IS OVER 300 VOLTS TO GROUND 18 Wiring Diagram Immersion Thermostat Models with Staging 2 Stage GS Models OD CONTROL 6 TRANSFORMER 3
14. ECTIONS This heater may be connected individ ually in multiples with others or with an external hot water storage tank It may also be used to boost the temperature of preheated The pressure rating of the relief valve must not exceed 150 psi Inlet and outlet water connections are clearly marked next to the 160 psi for ASME models the maximum working pressure of the connections on the heater Use only clean new galvanized steel water heater as marked on the rating plate The Btu h rating of the copper or approved plastic for pipe for water connections Local relief valve must not be less than the input rating of the water heater codes shall govern the exact type of material to be used The in as indicated on the rating plate located on the front of the heater stallation of unions on the inlet and outlet water lines and a shut 1 watt 3 412 Btu h off valve in at least the cold water line is recommended so the water heater may be easily disconnected for servicing Dielectric unions Connect the outlet of the relief valve to a suitable open drain so are not required for protection of the water heater that the discharge water cannot contact live electrical parts The dis charge line must pitch downward from the valve to allow complete draining by gravity of the relief valve and discharge line and be no smaller than the outlet of the valve The end of the discharge line When this water heater is supplying general purpose hot water re
15. aners are preferred cautiously follow the instructions supplied with the cleaner DO NOT use a muriatic or hydrochloric acid HCI based cleaner 6 ANODE ROD INSPECTION This water heater is equipped with an anode rod designed to prolong the life of the glass lined tank The anode is slowly consumed cathodically thereby eliminating Or minimizing corrosion of the glass lined tank Water sometimes contains a high sulfate and or mineral content and together with the cathodic protection process can produce a hydrogen sulfide or rotten egg odor in the heated water Chlori nation of the water supply should minimize the problem The anode rod s should be removed from the water heater s tank for periodic inspection Replace the anode s when more than 6 of core wire is exposed at either end of the rod If overhead clearance is not sufficient to allow installation of a rigid rod of original length segmented rods in both standard and re sistor versions are available NOTE Do not remove the anode rod from the water heater s tank except for inspection and or replacement as operation with the anode rode removed will shorten the life of the glass lined tank and exclude warranty coverage Maintenance 7 SEASONAL OPERATION If the water heater is to remain idle for an extended period of time 60 days or more the power to the heater should be turned off The water heater and piping should be drained if they might be subjected to f
16. as first placed in ser vice Torque specs are marked on the terminal block NOTE On surface mounted thermostat models make certain insulation is carefully replaced and tucked in before placing heater in operation Also check the thermostat to be certain that it is located in its bracket and making good contact with the surface of the tank 2 FUSES Any replacement fuses should be of the same UL Class and type as the originals The amp rating of the element circuit fuses may be reduced on those models not having high amperage elements 3 HEATING ELEMENTS The life of elements can be extended in hard water areas by removing the scale build up Cleaning can be accomplished by scraping or soaking in a de scaling solution Care should be taken so the protective plating is not damaged by scrap ing or dissolved by excessive soaking A CAUTION Be certain all power to the water heater is turned OFF and tank has been completely drained before removing elements for cleaning Whenever an element is removed from the tank for cleaning or re placement a new gasket should be installed to prevent a possi ble water leak Refer to parts information in this manual for re placement gasket information The elements are easily unscrewed with a 1 1 2 socket wrench 4 RELIEF VALVE The Temperature and Pressure Relief Valve must be free to operate properly Check operation at least once a year by lifting the handle fully and
17. ating Element Include wattage and voltage Anode Rod s Or other parts as required 2 Quantity of each part required 3 Complete model number and name of the water heater 4 Serial Number of water heater 5 Specify the voltage and KW rating 6 Address Parts orders to your distributor or dealer How to Obtain Service Assistance 1 Should you have any questions about your new water heater or if it requires adjustment repair or routine maintenance it is suggested that you first contact your installer plumbing con tractor or previously agreed upon service agency In the event that the firm has moved or is unavailable refer to the tele phone directory commercial listings or local utility for qualified service assistance Should your problem not be solved to your complete satisfac tion you should then contact the Manufacturer s National Service Department at the following address 2600 Gunter Park Drive Montgomery Alabama 36109 1413 Phone 1 800 432 8373 A CAUTION When contacting the manufacturer the following information should be made available Model and serial numbers of the water heater as shown on the rating plate attached to the jacket of the heater b Address where water heater is located and can be seen Name and address of installer and any service agency who performed service on the water heater Date of original installation and dates any service work was performed
18. in conjunction with the water heater The use of such unauthorized devices may shorten the life of the water heater and may endanger life and prop erty The manufacturer disclaims any responsibility for such loss or injury resulting from the use of such unau thorized devices 1 INSPECT SHIPMENT for possible damage The manufacturer s responsibility ceases upon delivery of goods to the carrier in good condition Any claims for damage shortage in shipments or non delivery must be filed immediately against carrier by consignee Refer to Fig 1 for installation with commercial dishwasher to pro vide hot water for sanitizing rinse Note Adjust the pressure re ducing valve to the dishwasher manufacturer s recommended pres sure usually between 15 and 25 psi with water flowing to the dish washer 2 THERMAL EXPANSION Determine if a check valve exists in the inlet water line It may have been installed in the cold water line as a separate back flow preventer or it may be part of a pressure reducing valve water meter or water softener A check valve located in the cold water inlet line can cause what is referred to as a closed water system A cold water inlet line with no check valve or back flow prevention device is re ferred to as an open water system As water is heated it expands in volume and creates an increase in the pressure within the water system This action is referred to as thermal expansion In an o
19. l s thermostat is adjustable to 190 F to insure the 180 F minimum for dishwasher rinse applications To adjust the water temperature on Surface Mounted Thermo stat models insert a small straight screwdriver into slotted screw of indicator and move indicator to desired setting See Opera tion Section of this Manual for details TURN OFF POWER BEFORE SERVICING Immersion Thermostat Surface Mounted Thermostat To adjust water temperature on Immer Sion Thermostat models turn thermostat dial to align desired mark with index line above thermostat See Operation Section of this Manual for details CAUTION Hotter water increases the risk of SCALDING Figure 4 Thermostat Adjustment A CAUTION Hydrogen gas can be produced in a hot water system served by this water heater that has not been used for along period of time generally two weeks or more HY DROGEN GAS IS EXTREMELY FLAMMABLE To dissi pate such gas and to reduce risk of injury it is recom mended that the hot water faucet be opened for sever al minutes at the kitchen sink before using any electri cal appliance connected to the hot water system If hy drogen is present there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow Do not smoke or use an open flame near the faucet at the time it is open A WARNING and other commercial purposes Water temperatures
20. mersion Thermostat models it is not necessary toturn power OFF before adjusting the temperature setting of the thermostat s The adjustable thermostat dial s on these models is located on the exterior of the cabinet A 140 F setting is atthe diamond mark between WARM and on the dial refer to Fig 4 The range of settings are from an OFF position indicated by the bar on dial to 190 F atthe VERY position This higher setting is provided to insure the required 180 F minimum for dishwasher rinse applica tions and other commercial purposes The OFF position can be Used as a convenient means of conserving energy during periods of non use 2 HIGH TEMPERATURE LIMIT CONTROL Both Surface and Im mersion Thermostat models are equipped with a manual reset high temperature limiting control s If for any reason the water tem perature becomes excessively high The High Temperature Limit Control breaks the power to the heating elements Once this con trol opens it must be manually reset CAUTION CAUTION The cause of the high temperature condition must be in vestigated by qualified service personnel and correc tive action taken before placing the water heater in ser vice again TO RESET HIGH TEMPERATURE LIMIT CONTROL WARNING Be certain the power supply to the water heater is turned OFF before attempting to reset the Limit Control NOTE Allow the water in the tank to cool before
21. n Outlet Optional Return Outlet Thermal Expansion Tank If Required Cold Water Inlet Shut off Valve 1 Heater s Outlet Piping must have upward slope otherwise use Circulator 2 If vertical tank is used follow same lay out Installation Storage Tank Temperature amp Pressure Relief Valve Hot Outlet Refer to Local Codes Cold Water Inlet Recirculation Loop Temperature amp Pressure Relief Valve Shut off Valve Not visible in this view Refer to Local Codes Recirculator K Ip 77 ul Circulator Control Optional Branch Circuit from Electrical Distribution Panel Vacuum Relief Valve Not Supplied Circulator Circulator may be wired to run continuously without the control Temperature amp Pressure Relief Valve s Hrequired install per focal codes and valve manufacturer s Discharge Pipe s to suitable open drain instructions Figure 3 Typical Forced Circulation Tank System with factory supplied jacketed and insulated storage tanks Factory designed Equa Flow Manifolds and jacketed insulated 221 22 is factory installed on this water heater at the time of man storage tanks are available ufacture No valve is to be placed between the relief valve and the water heater For a circulating tank installation the separate stor age tank s must have similar protection Local codes shall gov ern the installation of relief valves 3 WATER CONN
22. ough to present a SCALD HAZARD and should be directed to a suitable drain to prevent injury or damage In order to drain water heater turn off cold water supply then it is necessary to open a hot water faucet or lift the handle on the relief valve to admit air to the tank Attach a garden hose to the drain valve on the water heater and direct the stream of water to a drain where it will do no damage Maintenance Properly maintained this water heater will provide years of depend able trouble free service It is strongly suggested that a regular rou tine maintenance program be established and followed by the owner It is further recommended that a periodic inspection of the relief valve and electrical controls be made by service personnel qualified in elec tric appliance repair A CAUTION Make certain all power to the water heater is turned OFF before performing any maintenance or inspec tion work on this water heater 1 ELECTRICAL CONNECTIONS Periodic inspection of all elec trical connections at the service terminal block fuse holders con tactors thermostats and elements should be performed to make certain all connections are tight If the electrical supply leads used are aluminum particular attention should be given to the branch cir cuit connections at the heater s terminal block It is advisable to retighten the field terminal connections of aluminum conductors twenty four hours after the water heater w
23. over 125 F can cause severe burns instantly or death from scalds Safety and energy conservation are factors to be considered when setting the water temperature on the thermostat The most ener gy efficient operation will result when the temperature setting is DANGER the lowest that satisfies the needs consistent with the application There is a hot water SCALD POTENTIAL if the thermo stat is set too high NOTE When this water heater is supplying general pur pose hot water requirements for use by individuals a thermostatically controlled mixing valve for reducing point of use water temperature is recommended to re duce the risk of scald injury Contact a licensed plumber or the local plumbing authority for further information Outlet water temperatures will vary during normal operating cy cles Reliable temperature readings should be taken shortly after the thermostat s cycle off during a period of little or no use If water temperature other than 120 F is needed the following in structions will apply depending on model SURFACE MOUNTED THERMOSTAT MODELS A DANGER Be certain power to the water heater is turned OFF before adjusting temperature setting of thermostat There is one thermostat that controls all heating elements It is 0 cated behind the removable pad of glass fiber insulation in the con trol compartment Operation 160 F MODELS Adjust thermostat dial pointer with a small sc
24. pen water system expand Installation Temperature Water Shock Pressure Reducing SYSTEM SENTINEL Thermostat s Pressure Gauge Arrestor Valve with By pass Indicators Dial s High Temp Limit Control Shut off Valve Vacuum Relief Valve Not Supplied Water Inlet 39 9 Dishwasher yt Circulation Return Line If required install per local codes and valve manufacturer s instructions Check Valve 6 Air Gap Relief Valve Discharge Line Open Drain Figure 1 Recommended installation for dishwashing sanitizing rinse application ing water which exceeds the capacity of the water heater flows back into the city main where the pressure is easily dissipated A closed water system however prevents the expanding water from flowing back into the main supply line and the result of thermal expansion can create a rapid and dangerous pres sure increase in the water heater and system piping This rapid pressure increase can quickly reach the safety setting of the relief valve causing it to operate during each heating cycle Thermal expansion and the resulting rapid and repeated expansion and contraction of components in the water heater and piping system can cause premature failure of the relief valve and possibly the heater itself Re
25. pera tion Section of this Manual for details TURN OFF POWER BEFORE SERVICING Immersion Thermostat To adjust the water temperature on Immer sion Thermostat models turn thermostat dial to align desired mark with index line above thermostat See Operation Section of this Manual for details CAUTION Hotter water increases the risk of SCALDING A DANGER There is a Hot Water SCALD Potential if the thermostat is set too high Surface Mounted Thermostat NOTE When this water heater is supplying general purpose hot water requirements for use by individuals a thermostat ically controlled mixing valve for reducing point of use water temperature is recommended to reduce the risk of scald in jury Contact a licensed plumber or the local plumbing au thority for further information Introduction WARNING Read and Review this entire Manual with special em phasis on the Installation Section Pages 3 6 and Op eration Section Pages 7 8 prior to any installation work LOCAL INSTALLATION REGULATIONS This water heater must be installed in accordance with these instructions local codes utility com pany requirements and or in the absence of local codes the latest edi tion of the American National Standard National Electrical Code A copy of which can be purchased from the National Fire Protection Associa tion 1 Batterymarch Park Quincy MA 02269 as booklet NFPA 70 LOC
26. placing the relief valve will not correct the problem Storage Tank Temperature amp Pressure Relief Valve Not visible in this view Refer to Local Codes Vacuum Relief Valve Not Supplied If required install per local codes and valve manufacturer s instructions Branch Circuit from Electrical Distribution Panel Air Gap 6 Temperature amp Pressure Relief Valve s Discharge Pipe s to suitable open drain Figure 2 Typical Gravity Circulating System The suggested method of controlling thermal expansion is to install an expansion tank in the cold water line between the water heater and the check valve The expansion tank is designed with an air cushion built in that compresses as the system pressure increases thereby relieving the over pressure condition and elimi nating the repeated operation of the relief valve Other methods of controlling thermal expansion are also available Contact your installing contractor water supplier or plumbing inspector for additional information regarding this subject If a recirculation line is installed the return connection should be made to a tee close to the inlet connection on the water heater A check valve should always be installed in the recirculation line to prevent cold water from entering Storage Tank Temperature amp Pressure Relief Valve Refer to Local Codes Temperature amp Pressure Relief Valve Discharge Pipe to suitable open drain Retur
27. reezing temperatures It is recommended that the water heater s operation is thoroughly checked by qualified personnel before it is placed back in ser vice NOTE Refer to Hydrogen Gas Caution in Safety Precautions Section on page 8 GENERAL Periodic cleaning of the equipment is recommend ed Turn off power to heater Remove any lint or dust that may block the free passage of air through the control compartment Do not allow combustible materials such as newspapers rags or mops to accumulate near the water heater System Sentinel System This water heater is supplied with the System Sentinel System The system consists of an element diagnostic panel utilizing light emitting diodes L E D The L E D s are lit only when the thermostat s is calling for element operation This diagnostis system has L E D s corresponding to the number and location of heating elements and are energized when the elements are operating An unlit L E D pinpoints the exact location of a non functioning element making element operation diagnosis simple and positive Replacement Parts The following Parts are required for Normal Maintenance for all Models SP21949 1 2 Socket Wrench for Element Head SP6708 Element Gasket All other Parts can be ordered by providing the following information 1 Description of Part s such as Thermostat s Thermostat High Temp Limit Assembly High Temperature Limit Control Transformer He
28. resetting the High Temperature Limit Control On Surface Mounted Thermostat models press the red RESET button located above the thermostat referto Fig 4 The thermo stat protective cover SHOULD NOT be removed On Immersion Thermostat models the reset button is located on the outside of the control enclosure near the thermostat s dial s A WARNING 3 EMERGENCY INSTRUCTIONS If the water heater has been subjected to flood fire or physical damage turn off power and water to water heater Do not operate the water heater again until it has been thoroughly checked by qualified service person nel 4 LONG TIME SHUT DOWN If the water heater is to remain idle for an extended period of time 60 days or more the power and water to the water heater should be turned off to conserve ener gy The water heater and piping should be drained if they might be subjected to freezing temperatures It is recommended that the water heater s operation and controls should be checked by qual ified service personnel before putting it in service again WARNING Make certain the water heater is completely filled before again placing it in operation NOTE Refer to Hydrogen Gas Caution in Safety Precautions Section on page 8 5 DRAINING HEATER A CAUTION Be sure that the power to water heater is shut off before draining water CAUTION The water drained from the tank may be hot en
29. rewdriver to the de sired water temperature setting refer to Fig 4 THERMOSTAT PROTECTIVE COVER SHOULD NOT BE REMOVED The ther mostat is adjustable from a LOW to HI setting An approximate water temperature of 130 F is accomplished when the tempera ture dial pointer is in the MED position Each mark above and below the MED position indicates an approximate 10 F change in water temperature Replace insulation close access door and turn power ON and the water heater is operational NOTE A thermometer s installed at or near the outlet of the water heater and or storage tank s will result in the most ac curate outlet water temperature measurement 180 F GALLON MODELS Adjust thermostat dial pointer with a small screwdriver to the de sired water temperature setting refer to Fig 4 THERMOSTAT PROTECTIVE COVER SHOULD NOT BE REMOVED The ther mostat is adjustable from a LOW to HI setting An approximate water temperature of 150 F is accomplished when the tempera ture dial pointer is in the MED position Each mark above and below the MED position indicates an approximate 10 F change in water temperature Replace insulation close access door and turn power ON and the water heater is operational NOTE A thermometer s installed at or near the outlet of the water heater and or storage tank s will result in the most ac curate outlet water temperature settings IMMERSION THERMOSTAT MODELS NOTE On Im
30. ribution box Terminate strand ed grounding conductors with suitable pressure connectors ALUMINUM WIRE CONNECTIONS When aluminum wire is used for electrical supply leads it is ad visable to check the field terminal connections of a new installa tion twenty four hours after the heater has been placed in service for possible need to retighten Torque specs are marked on the ter minal block Date of Installation Installed By Operation SAFETY PRECAUTIONS Do turn off power to water heater if it has been subjected to over heating fire flood or physical damage Do Not turn on water heater unless it is filled with water Do Not turn on water heater if cold water supply shut off valve is closed If there is any difficulty in understanding or following the OPERA TION or MAINTENANCE instructions it is recommended that a qualified person or serviceman perform the work TO PLACE WATER HEATER IN OPERATION A CAUTION Make certain tank is completely filled with water before placing the water heater in operation Refer to Instal lation Section of this manual 1 WATER TEMPERATURE SETTING To comply with safety reg ulations and reduce the risk of scald injury the thermostat s of the water heater has been set at the factory to a setting corre sponding to 120 F This is the preferred starting point for setting the control for general purpose hot water To meet commercial water needs the Booster mode
31. ult when the temper ature setting is the lowest that satisfies the needs consistent with the application Maximum water temperatures occur just after the thermostat has shut off the elements To find the hot water temperature being delivered turn on a hot water faucet and place a ther mometer in the hot water stream and read the thermometer The following chart details the relationship of water tem perature and time with regard to scald injury and may be used as a guide in determining the safest water temperature for your applications TIME TEMPERATURE RELATIONSHIPS IN SCALDS Temperature Time to Produce Serious Burn 120 F More than 5 minutes 125 F 11 2 to 2 minutes 130 F About 30 seconds 135 F About 10 seconds 140 F Less than 5 seconds 145 F Less than 3 seconds 150 F About 11 2 seconds 155 F About 1 second Table courtesy of Shriners Burn Institute The temperature of the water in the heater can be regulated by adjusting the thermostat To comply with safety regula tions the thermostat was set at the factory to a setting corre sponding to 120 F The illustration below pictures the ther mostats used on the water heaters covered in this manual and how to adjust the water temperature To adjust the water temperature on Surface Mounted Thermo stat models insert a small straight screwdriver into slotted screw of indicator and move indicator to desired setting See O
32. y be bolted to a horizontal or vertical surface If installed on a counter top or stacked vertical ly in multiples insert bolts and or washers in bottom threaded open ings to provide a minimum 1 4 clearance so door hinges will not bind Factory designed accessories available for the Booster square model are six inch adjustable stainless steel legs and a bracket kit for slide in under counter mounting or wall mounting of the water heater D RESTAURANT INSTALLATION If the water heater is to be installed in a restaurant or other location where NSF International listing is required it must be weather sealed to the floor a raised base or shelf so that seepage cannot accu mulate under it or elevated to provide at least 6 inches of clear ance from the floor The standard legs supplied with the Booster models provide the six 6 inches of clearance in accordance with NSF International re quirements For the Tank Type models a factory designed sealing kit is avail able from the distributor or store where the water heater was pur chased When installed according to the instructions supplied with the kit these heaters will meetthe NSF International requirements Installation WARNING The manufacturer s warranty does not cover any damage or defect caused by installation or attachment or use of any special attachment such as energy saving de vices other than those authorized by the manufactur er into onto or
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