State Industries 705 Series 200 Water Heater User Manual
Contents
1. 00 _ ESO 7 Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet 61 cm from the center line of the terminal Clearance to each side of center line extended above meter regulator assembly Clearance to service regulator vent outlet to service Clearance to service regulator vent outlet vent outlet NN T to nonmechanical air supply inlet to building or the 12 inches 30 cm combustion air inlet to any other appliance Clearance to a mechanical air supply inlet MEE e vH Rey 10 s 3 m horizontally L Clearance above paved sidewalk or paved driveway located on n public property Clearance under veranda porch deck or balcony A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings Permitted only if veranda porch deck or balcony is fully open on a minimum of two sides beneath the floor For clearances not specified in ANS Z223 1 NFPA 54 or CSA B149 1 clearances are in accordance with local installation codes and the requirements of the gas supplier 305 505 705 Indoor Manual 25 Additional Clearances Vent Terminal Local codes supersede these clearances e Avoid termination locations near a dryer vent e Avoid termination locations near commercial cooking exhaust v Vent terminal represents concentric vent terminal for the water heater 12. R 4 R R 4 2 R Qq LR 4 R 4 Hd LR H R I 4 2 bR I Qj L 4 J 4 R 4 d R R I I 4 2 R l Qq LR 4 R 2 R 4 2 d LbB d LR I 4 2 R I Qj L 4 2 Jd LR I 2 2 g L o LL R Jl2 LI 22lJl2l2 2 Ll2I222Jj LI2 2 J 2 L 4lI J 2 2 22Lb 2 2 L2I22dJl22222Ll2 34 Space Heating If the water heater is to be used for both water potable heating and space heating then the following apply e The piping and components connected to the water heater shall be suitable for use with potable water e Toxic chemicals such as used for boiler treatment shall not be introduced into the potable water e he water heater shall not be connected to any heating system or components previously used with a nonpotable water heating appliance e When the system requires water for space heating at temperatures higher than required for other uses a means such as a mixing valve shall be installed to temper the water for other uses in order to reduce the scald hazard potential opace heating applications are considered commercial applications for warranty purposes Temperature Setting When using this appliance to provide domestic hot water it is recommende
3. 16 305 505 705 Indoor Manual Water Piping General Instructions e A manual water control valve must be placed in the water inlet connection to the water heater before it is connected to the water line Unions may be used on both the hot and cold water lines for future servicing and disconnection of the unit e The piping including soldering materials and components connected to this appliance must be approved for use in potable water systems e Purge the water line to remove all debris and air Debris will damage the water heater Pressure Relief Valve e An approved pressure relief valve is required by the American National Standard ANSI Z21 10 3 Canadian Standard CSA 4 3 for all water heating systems e The relief valve must comply with the standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems ANSI 221 22 and or the standard Temperature Pressure Temperature and Pressure Relief Valves and Vacuum Relief Valves CAN1 4 4 e The relief valve must be rated up to 150 psi and to at least the maximum BTU hr of the appliance e The discharge from the pressure relief valve should be piped to the ground or into a drain system to prevent exposure or possible burn hazards to humans or other plant or animal life Follow local codes Water discharged from the relief valve could cause severe burns instantly scalds or death e The pressure relief valve must be manually operated onc
4. 2 L 4 B 4 L L 2 J4 Lb 2 L 4 L T R 4d d b 2 Jj R 4 ER 4 B 4 L LR J4 Lb 2 E 4 L p 4 Hd R d ft 4 bB 4 p 4 b tR 4 L 4 B 4 EB LlI 2dlB 2 J 2 22 2 Ll2I22 L 2 2 J 2 2 2 Ll2I2I2 l 2l2l2l2 L Jl 2 2 2 LI2ILI LLIL2ILIL2IJ 222 L J 2 LlLI2I 2 2J 2 2 L 2 L l L22 22J LI2222LlIII2ll22 L L 2 2 2 2L2I222 L2I2J2I2I22 L2 2 2Ll222 2J2 222 Ll2l L 4 d R R d L 4 L 4 L R I d LR LR 4 L 50 delta T Temperature Rise F 305 505 705 Indoor Manual me me e eef e ee e me be e e m ah e 25 4 4 1 L 1 J 4 L 1 L 4 L 4 Ld Ll ed LL Ld LL 1 L 1 J J L 1 L 4 L 1 J L 4 L 4 L 1 1 LL dL 1 LL e me me e eed ee ee eh ee ede ee pe ede ee been nd eb pe eb ee dee ede eee bee ee een ee bee ede ee eb ee ete ep nn de ee eb ee be ee ede ee pe de ee eb ee a a eh a a a he a a a eb a a hh a eh a a a hd hb a dn a eb a a a a eh a gt ee de eb Sook ee ee ee Pee ee ed Pee hiss he ey gee ea Py ee pet aie ae ey
5. 39 2 305 505 705 Indoor Manual Specifications 356 s5 _ Minimum Gas Consumption Btu h 15 000 19 000 Maximum Gas Consumption Btu h 180 000 Mies 237 000 ee re eee 0 6 7 5 GPM 0 6 9 4 GPM 0 6 9 8 GPM Ber 2 3 28 4 L min 2 3 35 5 L min 2 3 37 L min 7 4 GPM 28 0 L min Hot water capacity 45 F rise 6 6 GPM 25 0 L min iau Cas 8 8 33 5 L min 7 1 GPM 26 9 L min Propane Gas Default Temperature Setting no controller 120 F 49 C Temperature Controller Default Setting 104 F 40 C Maximum Temp Setting Commercial 160 F 71 C 185 F 85 C Maximum Temp Setting Residential Selectable at 120 F 49 C or at 140 F 60 C 140 F 60 C Minimum Temperature Setting 98 F 37 C Weight 50 Ib 23 kg 55 Ib 25 kg 84 49 dB 100 W Efficiency Rating Noise level O Normal Electrical Consumption Standby N Anti frost Protection 116 W By Pass Control Fixed Electronic 5 0 inch W C 8 0 inch W C 10 5 inch W C 13 5 inch W C Minimum Gas Supply Natural Gas Pressure Propane Natural Gas Maximum Gas Supply Pressure Propane Type of Appliance Direct Vent Temperature controlled continuous flow gas hot water system Operation With or without temperature controls mounted in kitchen bathroom etc Approved Gas Type Connections Gas Supply 3 4 MNPT Cold Water Inlet 3 4 MNPT Hot Water Outlet
6. Allow to cool 2 Remove and clean the water inlet filter 3 Remove the front panel by removing 4 screws 4 Use pressurized air to remove dust from the main burner heat exchanger and fan blades Do not use a wet cloth or spray cleaners on the burner Do not use volatile substances such as benzene and thinners They may ignite or fade the paint 5 Use soft dry cloth to wipe cabinet Vent System The vent system should be inspected at least annually for blockages or damage Motors Motors are permanently lubricated and do not need periodic lubrication Keep fan and motor free of dust and dirt by cleaning annually Temperature Controller Use a soft damp cloth to clean the temperature controller Do not use solvents Lime Scale Build up If you receive Error Code LC refer to the procedure Flushing the Heat Exchanger Refer to the section on Water Quality to see if your water needs to be treated or conditioned When checking maintenance code history OO is substituted for LC Snow Accumulation Keep the area around flue terminal free of snow and ice The appliance will not function properly if the intake air or exhaust is impeded blocked or partially blocked by obstructions Visual Inspection of Flame The burner must flame evenly over the entire surface when operating correctly The flame must burn with a clear blue stable flame See the parts breakdown of the burner for the location of the
7. Refer to the National Fuel Gas Code NFPA 54 for proper gas line sizing The below information is provided as an example 1 Determine the cubic feet per hour of gas required by dividing the gas input on the rating plate by the heating value of the gas available from the local gas company The gas input needs to include all gas products at the location and the maximum BTU usage at full load when all gas products are in use Gas Input of the water heater BTU HR Cubic Feet per Hour CFH Heating Value of Gas BTU FT 2 Use the table for your gas type to find the pipe size required for your cubic feet per hour of gas and your pipe length Example The heating value of propane gas for your location is 2516 BTU FT The gas input is 190 000 BTU HR Additional appliances at the location Tequire 75 000 BTU HR Therefore the cubic feet per hour 190 000 75 000 2516 105 3 FT HR If the pipe length is 100 ft then the 3 4 inch pipe size capable of supplying 197 FT HR of propane gas will be adequate Pipe Sizing Table Propane Gas cubic feet per hour Schedule 40 Metallic Pipe Pipe Sizing Table Natural Gas cubic feet per hour Schedule 40 Metallic Pipe Inlet Pressure 11 0 inches W C Pressure Drop 0 5 inches W C opecific Gravity 1 50 Inlet Pressure less than 2 psi 55 inches W C Pressure Drop 0 3 inches W C opecific Gravity 0 60 m o s s we sw Le pm o ome s r
8. 3 4 Hot Water Supply Line Optional 2 6 Gallon Storage Tank To eliminate cold water sandwich effect caused by frequent On Off operation Building Fixture Outlets KEY 3 4 Ball Valve MV Pressure Regulator 3 4 Union O Circulating Pump PNN Check Valve Boiler Drain Valve K Pressure Relief Valve i 2 Solenoid Valve 305 505 705 Indoor Manual Equipment List QTY Water Heaters 1 Plumbing Installation 1 Kit Optional 3 4 Fittings Include 2 Unions 2 Ball Valves 2 Drain Valves and 1 Pressure Relief Valve Gas Supply Minimum 3 4 Cold Water Supply Line Expansion Tank This is not an engineered drawing It is intended only as a guide and not as a replacement for professionally engineered project drawings This drawing is not intended to describe a complete system It is up to the contractor engineer to determine the necessary components and configuration of the particular system being installed This drawing does not imply compliance with local building code requirements It is the responsibility of the contractor engineer to ensure installation is in accordance with all local building codes Confer with local building Officials before installation 21 Venting Instructions Intake Exhaust Guidelines Refer to the specific instructions on your vent product for additional installation requirements e This water heater is a direct vent water heater and therefore is certified a
9. 3 4 MNPT Natural Gas or Propane Ensure unit matches gas type it s being installed on Ignition System Direct Electronic Ignition Electric Connections Appliance AC 120 Volts 60Hz Temperature Control DC 12 Volts Digital Water Temperature Control Simulation Feedforward and Feedback Water Supply Pressure Minimum Water Pressure 20 PSI Recommended 30 80 PSI for maximum performance Maximum Water Supply Pressure 150 PSI Temperature Control Cable Non Polarized Two Core Cable Minimum 22 AWG Energy Star Qualified Yes Yes No Minimum flow may vary slightly depending on the temperature setting and the inlet water temperature for commercial and hydronic applications requiring higher temperatures Specifications are subject to change without prior notice The maximum inlet gas pressure must not exceed the value specified by the manufacturer The minimum value listed is for the purpose of input adjustment 305 505 705 Indoor Manual 3 Consumer Safety Information Safety Definitions This is the safety alert symbol This symbol alerts you to potential hazards that can kill hurt and others A DANGER Indicates an imminently hazardous situation which if not avoided will result in death or serious injury A WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury A CAUTION Indicates a potentially hazardous situation which if not avoided coul
10. 52 m vertically 60 between water heater terminals bv x x 0 91 to ventilated or unventilated soffit A Yy 36 or eve vent or to a id i deck or porch 12 0 30 to an inside corner 0 61 m to wall or parapet 0 30 m between MEE 24 water heater terminals at same level 7 444 41 INSIDE 1 52 m between 60 water heater terminals at different levels 12 m 0 30 m between water heater terminals at same V level 26 305 505 705 Indoor Manual Flue Installation for the 305 and 505 Models Horizontal Termination without using the Condensate Collector WARNI NG The condensate collector must be used M If the condensate collector is not used the drain pipe horizontal terminations if a vertical rise must be capped to prevent exhaust gases and Ens ote Ps condensate from entering the building The cap is EM supplied on the appliance Maximum Height 5 feet 1 52 m Regions of cold climate will create more condensate in the vent system The condensate collector should be used in cold climates If more than one elbow is used in the vertical section the condensate F collector must be used Horizontal Termination using Vertical Termination the Condensate Collector condensate collector must be used in a
11. H L J O OOO upo SOLENOID WATER FLOW VALVE SENSOR CIRCUT ov WATER FLOW SG CIRCUIT COMBUSTION 2 1 FAN 59 FLAME ROD REMOTE REMOTE CONTROLLER CIRCUIT CONTROLLER R THERMISTOR CIRCUIT 305 505 705 Indoor Manual 37 What is covered This Warranty covers any defects in materials or workmanship when the product is installed and operated according to written installation instructions subject to the terms within this Limited Warranty document This Warranty applies only to products that are installed by a factory authorized or licensed contractor Improper installation may void this Warranty It is strongly suggested that you use a factory authorized or licensed installer who has attended a product knowledge class before installing this water heater This Warranty extends to the Original purchaser but only while the product remains at the site of the original installation This Warranty only extends through the first installation of the product and terminates if the product is moved or reinstalled at a new location How long does coverage last Period of Coverage from date of purchase TE Commercial Applications AEE including radiant heating All Other Parts and 5 vears 5 vears Components y y Note Period of coverage is reduced to 3 years from date of purchase when used as a circulating water heater within a hot water circulation loop where the water heater is in seri
12. Lime Scale Build up 8 Flue Terminal Clearances SNOW 8 ANS Z21 10 3 CSA 4 3 25 Visual Inspection of FAMO 8 Additional Clearances Vent Terminal 26 Flue Installation for 305 and 505 Models 27 Error Codes Flue Installation for 705 Model 28 29 Error Code 9 10 High Altitude Installation 30 Trouble Shooting for Common Issues 11 Connecting Multiple Water Heaters 30 Accessing Operating Information 11 Temperature Controller Installation Water Quality Pae or 11 l OCAtlOPlu RERBA ID RIED 31 Flushing the Heat Exchanger 12 Configurations 31 Error Code LC or 00 Cable Lengths and Size 31 Mounting the Controller 32 Operating Instructions 33 Technical Data Pressure Drop 34 Outlet Flow 34 Space Heating 35 DIMENSIONS sa ds dios 36 Ladder Diagram sees 37 serari 38
13. drain the unit if power is lost It is also recommended that a surge protector with terminals be installed that attaches to the PC board in the unit and allows the solenoid valves to operate if the unit is disabled due to an error code When the electrical power to the water heater fails the 3 4 solenoid valve closes stopping the flow of water into the heater and the 1 2 solenoid valve opens allowing the water heater and associated piping to drain Ensure that you run the drain for the solenoids to the outside environment to prevent discharging water inside the building causing water damage 3 4 Gas Connection NOTE Heat trace ALL water pipe and fittings located outside home attic crawl space or building structure ALL water pipe and fittings shown above the dashed line in the drawing NOTE Gas Supply asc ALL pipe and fittings shown below dashed line B should be located inside home or building Minimum 3 4 Hot Water 3 4 Minimum Minimum 3 4 structure Supply Line Normally Closed Cold Water The vacuum breaker line should be located 1 2 Minimum v Solenoid Valve Supply Line inside the building structure Normally Open A Solenoid Valve Route to Floor Drain KEY This is not an engineered drawing It is intended only as a guide and not as a replacement for professionally engineered project drawings This a Pressure Regulator drawing is not intended to describe a complete system It is u
14. or regulator is sized properly Bleed all air from gas lines Verify dip switches are set properly Ensure appliance is properly grounded Disconnect all 2 Unit or Multi Unit connections to isolate the problem Ensure igniter is operational Check igniter wiring harness for damage Check gas solenoid valves for open or short circuits Remove burner cover and ensure all burners are properly seated Remove burner plate and inspect burner surface for condensation or debris Flame Failure Check that the gas is turned on at the water heater and gas meter Check for obstructions in the flue outlet Ensure gas line meter and or regulator is sized properly Ensure gas type and pressure is correct Bleed all air from gas lines Ensure proper venting material was installed Ensure condensation collar was installed properly Ensure vent length is within limits Verify dip switches are set properly Ensure appliance is properly grounded Disconnect keypad Disconnect all 2 Unit or Multi Unit connections to isolate the problem Check power supply for loose connections Check power supply for proper voltage and voltage drops Ensure flame rod wire is connected Check flame rod for carbon build up Disconnect and reconnect all wiring harnesses on unit and PC board Check all components for electrical short Check gas solenoid valves for open or short circuits Remove burner plate and inspect burner surface for condensation or debris 305 505 705 In
15. suitable for use in an application such as a pool or spa heater that uses chemically treated water This appliance is suitable for filling large or whirlpool bath tubs with potable water e f a water heater is installed in a closed water supply system such as one having a backflow preventer in the cold water supply line means shall be provided to control thermal expansion Contact the water supplier or local plumbing inspector on how to control thermal expansion e Should overheating occur or the gas supply fail to shut off turn off the manual gas control valve to the appliance e Keep the air intake location free of chemicals such as chlorine or bleach that produce fumes These fumes can damage components and reduce the life of your appliance 305 505 705 Indoor Manual 13 Clearances from Appliance to top to Non Combustibles 305 305 Top of 6 inches 12 inches 2 inches 2 inches Heater 152 mm 305 mm 51 mm 51 mm Back of 0 zero 0 zero 0 zero 0 zero Heater to Combustibles to yes Front of 6 inches 24 inches 6 inches 24 inches Heater 152 mm 610 mm 152 mm 610 mm Sides of 2 inches 2 inches 1 2 inch 1 2 inch Heater 51mm 51 13 13 Floor 12 inches 12 inches 12 inches 2 inches Ground 305 mm 305 mm 305 mm 51 mm SEI 4 inches 0 zero 0 zero 4 inches 102 mm for enclosed area 1 inch 26 mm for unenclosed area oak to flo
16. upstream at a location provided by the gas company Supplied gas pressure must be within the limits shown in the Specifications section e Before placing the appliance in operation all joints including the heater must be checked for gas tightness by means of leak detector solution soap and water or an equivalent nonflammable solution as applicable Since some leak test solutions including soap and water may cause corrosion or stress cracking the piping shall be rinsed with water after testing unless it has been determined that the leak test solution is non corrosive Always use approved connectors to connect the unit to the gas line Always purge the gas line of any debris before connection to the water heater The gas supply line shall be gas tight sized and so installed as to provide a supply of gas sufficient to meet the maximum demand of the heater and all other gas consuming appliances at the location without loss of pressure Any compound used on the threaded joint of the gas piping shall be a type which resists the action of liquefied petroleum gas propane LPG Refer to an approved pipe sizing chart if in doubt about the size of the gas line 305 505 705 Indoor Manual 15 Gas Piping Pipe Sizing Procedure Example The gas supply must be capable of handling the entire gas load at the location Gas line sizing is based on gas type the pressure drop in the system the gas pressure supplied and gas line type
17. view ports The flame pattern should be as shown in the figures below SATISFACTORY FRONT VIEW BLUE FLAME FLAME ROD UNSATISFACTORY FRONT VIEW YELLOW FLAME FLAME ROD 8 305 505 705 Indoor Manual This appliance has the ability to check its own operation continuously If a fault occurs an error code will flash on the Display of the temperature controller This assists with diagnosing the fault and may enable you to overcome a problem without a service call Please identify the code displayed when inquiring about service A WARNING some of the checks below may need to be done by a qualified service technician Calla service technician for any remedy that involves gas or electricity Call a service technician if you have any doubt or reservation about performing the remedy yourself Error Code fable eee Fault Remdy No burner operation during Service Call freeze protection mode Air Supply or Exhaust Ensure approved venting materials are being used Blockage Check that nothing is blocking the flue inlet or exhaust Check all vent components for proper connections Ensure vent length is within limits Ensure condensation collar was installed correctly Verify dip switches are set properly Check fan for blockage No Ignition Check that the gas is turned on at the water heater gas meter or cylinder Ensure gas type and pressure is correct Ensure gas line meter and
18. 0VAC terminals provided for the optional solenoid drain valves All service and wiring should be performed by a registered securing scre installer Outline of Controller 1 21 32 wiring hole 3 5 16 securing screw CONTROL CABLE ul Z oA O CONNECTION TERMINALS LA CABLE CLAMP 305 505 705 Indoor Manual Operating Instructions YOUR SAFETY READ BEFORE OPERATING BR A WARNING X you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life A This appliance does not have a pilot Itis e f you cannot reach your gas supplier call the equipped with an ignition device which fire department automatically lights the burner Do not try to light the burner by hand C Use only your hand to push in or turn the gas control knob Never use tools If the knob will not B BEFORE OPERATING smell all around the push in or turn by hand do not try to repair it call a appliance area for gas Be sure to smell next to qualified service technician Force or attempted the floor because some gas is heavier than air and repair may result in a fire or explosion ill settl the floor ME D Do not use this appliance if any part has been WHAT TO DO IF YOU SMEL
19. Direct Vent Tankless Water Heater Operation and Installation Manual Models 305 505 705 FOR INDOOR APPLICATIONS ONLY Models 305 and 505 are Energy Star Qualified Table of Contents Consumer Safety Information 4 Operating Instructions Maintenance Error Codes WARNING If the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal injury or death Do not 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 nottry to light any appliance Do not touch any electrical switch do not use any phone in your building 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 ANS Z21 10 3 Installation and service must be performed by a qualified installer service agency the gas supplier CSA 4 3 Table of Contents Specifications 3 Installation Instructions 13 General Instructions 13 Consumer Safety Information Clearances from Appliance 14 Safety 4 Attachment of the Water Heater 14 Safety Behaviors and
20. L GAS under water Immediately call a qualified service e Do not try to light any appliance technician to inspect the appliance and to replace e Do not touch any electric switch do not use any any part of the control system and any gas control phone in your building which has been under water e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions E OPERATING INSTRUCTIONS HN STOP Read the safety information above 6 Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow in the safety information 3 Turn off all electric power to the appliance using above If you don t smell gas go to the next step the ON OFF button 7 T Turn the manual gas valve counterclockwise to the 4 This appliance is equipped with an ignition device full ON position a which automatically lights the burner Do not try to light the burner by hand 2 Set the thermostat to lowest setting 8 Turn on all electric power to the appliance using the ON OFF button 5 Locate the manual gas valve on the side of the 9 Setthe thermostat to desired setting heater Turn the manual valve clockwise to the full OFF position Z 10 Open a hot water tap If the appliance will not operate follow the instructions To Turn Off Gas Manual Valve To Appliance and call your service technician or gas supplier See manual for additional CLO
21. Practices 4 Electrical 15 Safety Features sees 4 Gas Piping General Instructions 15 Description of Operation 5 Pipe Sizing Procedure Example 16 Water Piping Operating Instructions General Instructions 17 Features Available on Temperature Pressure Relief Valve 17 CODITOllOIS iid eee tke E ee 5 Freeze Protection 17 Setting the Temperature 6 Freeze Protection PIPING 18 Temperature Options Without Recommended Piping for Basic Installation 19 a Temperature Controller 6 Recommended Piping for Temperature T Circulation 5 20 Setting Controller to T Optional Piping for Circulation Systems 21 Maintenance Venting Instructions CIGANING 8 Intake Exhaust Guidelines 22 Ment System nando sanctions 8 Condensale d ret en e neis 22 e E 8 Maximum Vent Length 23 Temperature Controller 8 Venting Products esses 24
22. SE OPEN information zv EN rorunNorFGAs TOAPPLIAWcE BEER 1 Turn off all electric power to the appliance using 3 Locate the manual gas valve on the side of the the ON OFF button heater Turn the manual valve clockwise to the full 2 Setthe thermostat to lowest setting Eu oN 305 505 705 Indoor Manual 33 2 U Q C ac H pe y 1 sso eunssaJgd 100 O N NR i LII 5 IM LO 2 1 0 1 LO o Q Q Q o 0 N N Pressure Drop Curve Isd sso eJnssaJg Water Flow gpm Outlet Flow Data 1 1 1 E 1 I 1 1 1 1 1 1 1 1 1 1 1 I 1 1 1 1 1 4 1 1 1 1 al 1 1 1 1 E 1 1 1 4 1 1 1 1 1 1 4 1 1 1 E 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 125 150 mm mm jee e ae ee a ae ee a e pee ee dee ee eb eee Hd ee ee b ee ee ee ee ee ee aad a an a an an Ge aa a a a G aa a a aa ma Ga a a a an M pR 100 4d R R I LB R 4 LR L 4 bL bR I I I IJd bBR H LR 4 2 LR L 19 bR l 4 2d bl 2 j L
23. Water Line Hot Water Line H2 5 gallon pail of virgin food H1 grade white vinegar or virgin food grade citric acid Circulating Pump NS c KEY 3 4 Ball Valve Pressure Regulator 3 4 Union O Circulating Pump TN Check Valve HXI Boiler Drain Valve K Pressure Relief Valve Solenoid Valve 12 305 505 705 Indoor Manual Installation Instructions Only properly trained and qualified installers should install this appliance The warranty may be voided due to improper installation or installation by a non qualified installer General Instructions WARNING Do not use substitute materials Use only parts certified with the appliance e This appliance must be installed by a state qualified or licensed contractor It is the responsibility of the person having the water heater installed to ensure the installing contractor has proper licenses and permits for installing water heaters in your location It is highly recommended that installers attend a product knowledge class to ensure customer satisfaction and warranty coverage Failure to comply with state and local codes pertaining to water heater installations may void the warranty e This appliance is not to be installed outdoors e A qualified installer or service technician should install the appliance inspect it and leak test it before use e The installation must conform with local codes or in the absence of local codes with the National F
24. ance will cause damage to the heat exchanger Damage caused by lime build up is not covered by the unit s warranty After flushing reset the LC fault code by turning off the power to the unit and turning the power back on 1 Disconnect electrical power to the water heater 2 Close the shutoff valves on both the hot water and cold water lines V3 and V4 3 Connect pump outlet hose H1 to the cold water line at service valve V2 4 Connect drain hose H3 to service valve V1 5 Pour approximately 4 gallons of virgin food grade white vinegar or citric acid into pail 6 Place the drain hose H3 and the hose H2 to the pump inlet into the cleaning solution 7 Open both service valves V1 and V2 on the hot water and cold water lines 8 Operate the pump and allow the cleaning solution to circulate through the water heater for at least 45 minutes 9 Turn off the pump 10 Rinse the cleaning solution from the water heater as follows a Remove the free end of the drain hose H3 from the pail b Close service valve V2 and open shutoff valve V4 Do not open shutoff valve V3 c Allow water to flow through the water heater for 5 minutes d Close service valve V1 and open shutoff valve V3 11 Disconnect all hoses 12 Remove the in line filter at the cold water inlet and clean out any residue Place filter back into unit 13 Restore electrical power to the water heater H3 Water Heater Cold
25. ault is detected an error code flashes at the temperature In Use Indicator Indicates that hot water is being supplied i e a hot water tap is open On Off Button Used to turn the water heater On or Off Priority Button Indicator Indicates that this controller is setting the temperature Priority can be switched to another controller by pressing its Priority Button when no hot water is running Temperature Display Shows the temperature setting Thermostat Increases or decreases the temperature setting 305 505 705 Indoor Manual 5 Setting the Temperature Hot water can be dangerous especially for infants or children the elderly or infirm There is hot water scald potential if the thermostat is set too high Water temperatures over 125 F 51 C can cause severe burns or scalding resulting in death Hot water can cause first degree burns with exposure for as little as 3 seconds at 140 F 60 C 20 seconds at 130 F 54 C 8 minutes at 120 F 48 C Test the temperature of the water before placing a child in the bath or shower Do not leave a child or an infirm person in the bath unsupervised 1 Press the Priority button on the NOTICE While any hot water is being temperature controller The provided the temperature setting can green Priority light will glow only be adjusted between 98 F and indicating that this controller is 110 F controlling the temperature and that the wa
26. be installed to limit the potable hot water temperature to a safe temperature Water temperatures over 125 F 51 C can cause severe burns or scalding Refer to the Danger Alert on water temperatures The manufacturer shall not in any event be liable for damages resulting from such misuse or misapplication Suggested temperatures are These temperatures are suggestions only e Kitchen 120 F 49 C A temperature lower than 98 F 37 C can be e Shower 98 110 F 37 A3 C obtained at the tap by mixing with cold water To change the temperature scale from Celsius to Fahrenheit or vice versa press and hold the On Off button for 5 seconds while the water heater is OFF setting Controller to Mute To eliminate the beeps when keys are pressed or to turn the beeps back on press and hold both the Aand V buttons until a beep is heard approximately 5 seconds 305 505 705 Indoor Manual T Maintenance WARNING Turn off the electrical power supply the manual gas valve and the manual water control valve whenever servicing the unit Repairs and maintenance should be performed by a qualified service technician The appliance should be inspected annually by a qualified service technician Verify proper operation after servicing Cleaning It is imperative that control compartments burners and circulating air passageways of the appliance be kept clean Clean as follows 1 Turn off and disconnect electrical power
27. buildup freeze damage or vent blockage e incorrect sizing e any other causes other than defects in materials or workmanship This Warranty does not apply to any product whose serial number or manufacture date has been defaced This Warranty does not cover any product used in an application that uses chemically treated water such as a pool or spa heater This appliance is suitable for filling large or whirlpool bath tubs with potable water Refer to the Water Quality Section in the Operation and Installation Manual No one is authorized to make any other warranties on behalf of the manufacturer Except as expressly provided herein there are no other warranties expressed or implied including but not limited to warranties of merchantability or fitness for a particular purpose which extend beyond the description of the warranty herein and further the manufacturer shall not be liable for indirect incidental special consequential or other similar damages that may arise including lost profits damage to person or property loss of use inconvenience or liability arising from improper installation service or use Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation may not apply to you Limitation on implied warranties Any implied warranties of merchantability and fitness arising under state law are limited in duration to the period of coverage provided by this limited Warranty unles
28. ctrical power 4 305 505 705 Indoor Manual Description of Operation This appliance is one of the most advanced water heaters available It provides a continuous supply of hot water at a preset temperature This appliance is direct vent where air is brought in from the outside and combustion gases are exhausted to the outside While electricity water and gas supplies are connected this appliance produces hot water whenever a hot water tap is open Ignition is electronic There is no pilot light consuming gas while the water heater is not being used The gas burner lights automatically when the hot water tap is opened and goes out when the tap is closed Installation of the temperature controller is highly recommended The temperature controller can set the temperature within a specific range and can provide error codes to diagnose any problems The temperature of the outgoing hot water is constantly monitored This appliance may adjust the water flow in order to maintain the temperature setting The water flow may vary from summer to winter due to the difference in ground water temperature Operating Instructions Features Available on Temperature Controllers The temperature controller is supplied with the appliance Dimensions inches 3 5 W x 4 75 H x 0 75 D In Use Indicator Temperature Display Temperature Selection Priority Indicator Priority Button On Off Button Description When a f
29. d result in minor or moderate injury It may also be used to alert against unsafe practices Safety Behavior and Practices WARNING e Keep the area around the appliance clear and free e This appliance is equipped with a three prong plug from combustible materials gasoline and other for your protection against shock hazard and should flammable vapors and liquids be plugged directly into a properly grounded three prong receptacle Do not cut or remove the ground prong from this plug Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace e Any alteration to the appliance or its controls can be any part of the control system and any gas control dangerous and will void the warranty which has been under water e Always check the water temperature before entering a shower or bath Safety Features e Overheat The appliance will automatically shut e Power Surge Fuse A glass fuse protects against down when the appliance exceeds a predetermined overcurrent If the fuse blows then all indicator temperature lamps will be off e Flame Failure The appliance will automatically e Fusible Link In case the overheat feature does shut down if the burner flame is extinguished not prevent the temperature from rising then the e Power Failure The appliance will cut off the gas if fusible link will break shutting off the appliance it loses ele
30. d that the domestic hot water temperature be reduced to acceptable temperatures in accordance with local codes In the absence of local codes it is recommended that the domestic hot water temperature be set to 140 F 60 C or lower in accordance with UPC 501 6 by using mixing valves or the temperature controller for the water heater Pumps Only use pumps of brass or stainless steel construction Do not use pumps of iron construction as they will oxidize and clog the inlet filter on the appliance Pumps circulating water through the water heater must be sized to overcome the pressure loss through the water heater the heating system and any additional plumbing pressure losses The pressure drop curve based on the water heater model is provided in this manual Replacement When replacing an existing space heating application s water heating source boiler tank water heater tankless water heater etc with these water heaters ensure that the water heaters are sized to adequately provide the necessary BTU input for the desired space heating application These water heaters are designed to maintain a constant outlet temperature and will supply only the necessary amount of BTU s to maintain that temperature Depending on the application the maximum BTU rating of the unit may not be achieved Iron Components Do not use these water heaters directly for space heating applications involving iron radiators or applications with any iron components I
31. door Manual 9 Error Code Table a Thermal Fuse Check gas type of unit and ensure it matches gas type being used Check for restrictions in air flow around unit and vent terminal Check for low water flow in a circulating system causing short cycling Ensure dip switches are set to the proper position Check for foreign materials in combustion chamber and or exhaust piping Check heat exchanger for cracks and or separations Check heat exchanger surface for hot spots which indicate blockage due to scale build up Refer to instructions in manual for flushing heat exchanger Measure resistance of safety circuit Ensure high fire and low fire manifold pressure is correct Check for improper conversion of product Over Temperature Check for restrictions in air flow around unit and vent terminal Warning Check for low water flow in a circulating system causing short cycling Check for foreign materials in combustion chamber and or exhaust piping Check for clogged heat exchanger Outgoing Water Check sensor wiring for damage Temperature Sensor Measure resistance of sensor Fault Clean sensor of scale build up Replace sensor Heat Exchanger Check sensor wiring for damage Outgoing Temperature Measure resistance of sensor Sensor Fault Clean sensor of scale build up Replace sensor Combustion Air Check for restrictions in air flow around unit and vent terminal Temperature Sensor Check sensor wiring for damage Fault Measure resistanc
32. e Installation for the 705 Model Horizontal with Concentric Termination SLOPE INTAKE AND EXHAUST _ TOWARD OUTSIDE TERMINATION MINIMUM 1 4 PER FOOT 1 2 ABOVE ae GRADE OR SNOW LEVEL SP Vertical Terminations The air intake requires a return bend or two 90 elbows to prevent entry of rain The vent termination and air intake must be in the same pressure zone 3 _ MAX Jj Ll e MAX C 1 r LN 12 MIN i I 2 12 12 MIN NC NL WARREN mE x age OE _ B N Nu ye x sJ Qo Ua e OE I 5 4 dL ce 4 X IO _ N V V v Lie S N LN See N MM sA UN X A N ANTICIPATED S Ne SN t OXXOX XO3XOXOOXONUIDOXOOXOOOY XC NWICY DODOOXUDOXOXOX X0 XUDOOOOOXOOOXCONIOXOX00X00 3 a OFS OOOO OAD NA AAA AJ OO OOOO OOO S N OW L EV E L c N Jo COMBUSTION 12 MIN fpf A ES f 12 MIN N Neck me Call N DUM f X ee r Y A 305 505 705 Indoor Manual 29 High Altitude Installations Set dip switches 2 and 3 to the values shown in table below for your altitude The de
33. e a year to check for correct operation Freeze Protection The freeze protection features include electrical heating elements and intermittent firing of the burner Freeze protection may be disabled if electricity or gas is not supplied or if there is an error preventing the water heater from functioning Loss of freeze protection may result in water damage from a burst heat exchanger or water lines The installation of auto drain down solenoid valves is optional However it is strongly recommended that these valves be installed to prevent damage from freezing in case the normal freeze protection should become disabled Any product damage due to freezing will not be covered by the warranty e Toxic chemicals such as those used for boiler water treatment are not to be introduced to the potable water used for space heating e Ifthe appliance will be used as a potable water source it must not be connected to a system that was previously used with a nonpotable water heating appliance e Ensure that the water filter on the water heater is clean and installed e The relief valve should be added to the hot water outlet line according to the manufacturer s instructions DO NOT place any other type valve or shut off device between the relief valve and the water heater e Do not plug the relief valve and do not install any reducing fittings or other restrictions in the relief line The relief line should allow for complete drainage of
34. e of sensor Clean sensor of scale build up Ensure fan blade is tight on motor shaft and is in good condition Replace sensor Modulating Solenoid Check modulating gas solenoid valve wiring harness for loose or damaged terminals Valve Signal Abnormal Measure resistance of valve coil Combustion Fan Ensure fan will turn freely Failure Check wiring harness to motor for damaged and or loose connections Measure resistance of motor winding 71 SVO SV1 SV2 and Check wiring harness to all solenoids for damage and or loose connections SV3 Solenoid Valve Measure resistance of each solenoid valve coil Circuit Fault Replace flame rod Scale Build up in Heat Flush heat exchanger Refer to instructions in manual Exchanger when Replace heat exchanger checking maintenance 7 Flame Sensing Device Ensure flame rod is touching flame when unit fires Fault Check all wiring to flame rod for damage Remove flame rod and check for carbon build up clean with sand paper Check inside burner chamber for any foreign material blocking flame at flame rod Measure micro amp output of sensor circuit with flame present code history 00 is substituted for LC Nothing happens when Clean inlet water supply filter code water flow is activated On new installations ensure hot and cold water lines are not reversed Check for bleed over Isolate unit from building by turning off hot water line to building Isolate the circulating system if prese
35. eal e Onthe 305 and 505 models the vent piece connected to the water heater must be secured with one self tapping screw e Refer to the instructions of the vent system manufacturer for component assembly instructions e fthe vent system is to be enclosed it is suggested that the design of the enclosure shall permit inspection of the vent system The design of such enclosure shall be deemed acceptable by the installer or the local inspector If it becomes necessary to access an enclosed vent system for service or repairs the manufacturer is not responsible for any costs or difficulties in accessing the vent system Warranty does not cover obtaining access to an enclosed vent system WARNING If the condensate collector is not used the drain pipe must be capped to prevent exhaust gases and condensate from entering the building The cap is supplied on the appliance Provisions must be made to prevent the condensate from entering the water heater Without proper drainage or disposal condensate will damage the heat exchanger e his water heater has an integrated condensate collector e Regions of cold climate will create more condensate in the vent system The condensate collector should be used in cold climates 22 305 505 705 Indoor Manual Venting Instructions Maximum Vent Length 1 Determine the number of 90 degree elbows in the vent system Two 45 degree elbows count as one 90 degree elbo
36. egulator drawing is not intended to describe a complete system It is up to the 3 4 Ball Valve contractor engineer to determine the necessary components and 3 4 Union O Circulating Pump configuration of the particular system being installed This drawing does m not imply compliance with local building code requirements It is the PNN Check Valve 394 Boiler Drain Valve responsibility of the contractor engineer to ensure installation is in accordance with all local building codes Confer with local building K Pressure Relief Valve 54 Solenoid Valve officials before installation 20 305 505 705 Indoor Manual Optional Piping for Circulation Systems NOTE For residential and commercial applications this piping arrangement reduces the warranty to the following 3 years on heat exchanger 3 year on parts Full warranty will be maintained if an on demand recirculation system in incorporated Refer to the Limited Warranty For this application Pump should be controlled by an Aquastat Timer or Combination Aquastat and Timer Pump to be sized to maintain circulation loop temperature A minimum of 3 GPM flow is recommended for the circulation system The pump should be sized to overcome the pressure loss through the water heater supply and return plumbing Pump to be of bronze or stainless construc tion Note Water heater outlet temperature cannot be adjusted when circulation pump is running Minimum
37. es with a circulation system and all circulating water flows through the water heater and where an on demand recirculation system is not incorporated On demand recirculation is defined as a hot water recirculating loop or system that utilizes existing hot and cold lines or a dedicated return line and only activates when hot water is used It can be activated by a push button motion sensor or voice activation but not by a temperature sensor A timer added to a standard recirculating pump is not considered as on demand There is no warranty coverage on product installed in a closed loop application commonly associated with space heating only applications Use of an commercial controller in a residential dwelling will reduce the warranty coverage to that of a commercial warranty application The integrated controller on indoor models has a 1 year warranty on parts What will be done Repair or replacement of the covered product or any part or component that is defective in materials or workmanship as set forth as follows Payment of reasonable labor charges associated with the repair or replacement of any such part or component All repair parts must be genuine OEM parts All repairs or replacements must be performed by an individual or servicing company that is properly trained factory authorized or licensed to do the type of repair Replacement of the product may be authorized by the manufacturer only The manufacturer does not authori
38. fault setting for the A appliance is 0 2000 ft 0 610 m with switches No 2 and No 3 in the OFF position 0 610 m 610 1585 m 1585 2347 m 2347 3109 m WARNING DO NOT adjust the other dip switches unless specifically instructed to do so QN nA BPW ta BPW OQ ta BW l ta BW l Connecting Multiple Water Heaters The 2 Unit connection cable is an optional accessory Guidelines that connects 2 water heaters and allows them to function as one hot water source e Do not install both the 2 Unit connection cable and TEN TH the Multi Unit connection kit because they are not The Multi Unit connection kit and Multi Unit connection designed to operate together cables are optional accessories that connect 2 to 5 water heaters and allow them to function as one hot e Water heaters should be installed less than 18 water source inches apart so that the cables will reach between units and to prevent temperature fluctuations cold water sandwich effect when the water is shut off and turned back on The Multi Unit connection kit includes a PC board and one Multi Unit connection cable Refer to the instructions that come with the accessory t tti an only be changed on the for complete installation information v SUD quee nin ORI y g controller for the primary unit 1 2 Unit connection cable or 1 Multi Unit connection ki
39. he air intake has a zero clearance to combustibles Air Intake Connection mM m 1 Drill 2 small holes at the end of the air intake pipe 3 Pal ne 4 3 2 Slide the pipe over the air intake terminal 3 Using a level ensure the pipe is straight up and NE down F 4 With self tapping screws attach the pipe to the air 4 x intake terminal Xy P N 5 Apply a bead of silicone around the pipe and air intake terminal ensuring an air tight connection Exhaust Pipe Assembly Venting Clearances to Combustibles Refer to the manufacturer s installation instructions for Vent Size the specific exhaust vent system Horizontal amp Horizontal amp Vertical Vertical Horizontal Terminations The air intake must be located in relation to the exhaust as shown below The air intake must angle 1 4 inch per foot to the termination to prevent entry of rain 12 cos AY e L Optional a Intake EXHAUST e an COMBUSTION AIR Intake INTAKE mp T SLOPE INTAKE AND EXHAUST e vent termination and air TOWARD OUTSIDE TERMINATION intake must be in the same 12 MIN ABOVE EE EER pressure zone and face the GRADE OR EX T same direction SNOW LEVEL N E 28 305 505 705 Indoor Manual Flu
40. itch 5 to OFF default to obtain 120 F mS m 6 6 A WARNING NOT adjust the other dip 7 7 switches unless specifically 8 8 instructed to do so 6 305 505 705 Indoor Manual Temperature Ranges This water heater will attempt to provide hot water at the temperature setting even when the water flow is varied or when more than 1 tap is in use The water heater can deliver water at only one temperature setting at a time The available temperatures for a given model are provided below Temperature Settings Available F eene vos soo oe o is 20 125 ne Re setting the Maximum Temperature Models 305 and 505 have a default maximum temperature of 120 F 49 C and an option to increase the maximum temperature to 140 60 Temperature settings from 125 140 F 52 60 are available by setting dip switch 6 to ON in the SW1 bank of 8 dip switches Model 705 has a default maximum temperature of 140 F 60 Commercial Controller These settings require the commercial controller which is for commercial and hydronic applications requiring higher temperatures When the commercial controller is connected these higher temperatures are available on all controller models in the system The commercial controller is intended for commercial and hydronic applications only If commercial controller is used in a residential dwelling for a hydronics application a mixing valve must also
41. ll installations Condensate Trap 3in 75mm HE minimum 3i in 75 mm in 75 mm di d 1 minimum To adjust the condensate collector position or to packet replace the female vent top with a male vent top Condensate Collector E 1 Loosen the 4 screws at the rear bracket Slide the bracket away from the female vent top Remove the 4 screws attaching the female vent top to the water heater Lift up the female vent top and reposition as desired or replace with a male vent top Install the 4 screws at the vent top and tighten the 4 screws at the bracket lt Secure the first vent component to the water heater with one self tapping screw at the hole located above the condensate collector Securing Screw 305 505 705 Indoor Manual 27 Flue Installation for the 705 Model Air Intake Assembly 1c TN 2 7 TS The air intake system consists of a field supplied 4 inch diameter stainless steel Schedule 40 PVC ABS T or CPVC pipe A maximum 6 feet of semi rigid 1 3 fe er flexible aluminum ducting can also be used Foil EE i 2 wrapped dryer vent and cell core products are not PEE authorized N E x T
42. nd listed with the vent system You must use vent components that are certified and listed with the water heater model e Do not combine vent components from different manufacturers e The vent system must vent directly to the outside of the building and use outside air for combustion e Venting should be as direct as possible with a minimum number of pipe fittings e Avoid dips or sags in horizontal vent runs by installing supports per the vent manufacturer s instructions e Support horizontal vent runs every four feet and all vertical vent runs every six feet or in accordance with local codes e Vent diameter must not be reduced e Do not connect the venting system with an existing vent or chimney Condensate Condensate formation can occur in high efficiency direct vent appliances To prevent condensate damage follow these instructions e Vertical terminations must incorporate a condensate drain and trap as close as possible to the appliance e Slope any horizontal venting 1 4 inch per foot 19 mm m towards the heater if the condensate collector is used or towards the exhaust terminal if the condensate collector is not used e Dispose of condensate per local codes e The condensate trap must contain a minimum of 3 inches 75 mm of water e Do not common vent with the vent pipe of any other water heater or appliance e Vent connections must be firmly pressed together so that the gaskets form an air tight s
43. nt Open your pressure relief valve if water is 2 LC No flowing there is bleed over in your plumbing Ensure you have at least the minimum flow rate required to fire unit Ensure turbine spins freely Measure the resistance of the water flow control sensor Check for DC shorts at components 10 305 505 705 Indoor Manual Trouble Shooting for Common Issues don t have any hot water when I open the tap Make sure there is gas water and electricity to the water heater power is turned on and the gas is turned on When I was using the hot water the water got cold If you adjusted the flow from the tap to lessen it you may have gone below the minimum flow required This water heater requires a minimum flow rate to operate See the specification page for the flow rate of your model Decrease the temperature setting at the temperature controller or increase the water flow White smoke comes out of the exhaust During colder weather when the exhaust temperature is much hotter than the outside air the exhaust fumes condense producing water vapor When I open a hot tap do not immediately get hot water Hot water must travel through your plumbing from the water heater to the faucet The time period for hot water to reach your fixture is determined by the amount of water in the plumbing system between the water heater and the fixture water pressure and the flow rate of the fixture After I turn off the hot wa
44. ollers Water Heater Wire controllers in parallel Number of Wired Maximum Cable Length for each Controllers Controller to Water Heater 228 1007 648 607 55 20 305 505 705 Indoor Manual 31 Temperature Controller Installation Mounting the Controller Follow the procedure below to install additional controllers 15 10 11 12 32 Determine a suitable location for the controller Make three holes in the wall as shown Run the cable between the controller and the water heater or the controller and the other controller Remove the face plate from the temperature controller using a screwdriver Connect the cable to the temperature controller Mount the controller to the wall using the holes drilled in step 2 Disconnect the power from the water heater Remove the cover of the water heater Remove the plastic cover from the PCB and electrical connections Thread the cable through the access hole at the base of the unit and connect the wires to the controller terminals on the right hand side bottom of the PCB secure the controller cable using the clamp provided Replace plastic cover over PCB and then replace the cover of the water heater WARNING Do not attempt to connect the temperature controllers with the power on There is 120 volt potential next to the temperature controller connections inside the unit Do not connect the temperature controller to the 12
45. or ground The clearance for servicing is 24 inches in front of the water heater For closet installation 305 505 clearance is 6 inches 152 mm from the front 705 clearance is 24 inches 610 mm from the front Attachment of the Water Heater 1 Identify the installation location and confirm that the installation will meet all required clearances 2 Securely attach the water heater to the wall using any of the holes in the wall installation brackets which are at the top and bottom of the water heater Ensure that the attachment strength is sufficient to support the weight Refer to the weight of the water heater in the Specifications section wall installation brackets 14 305 505 705 Indoor Manual Electrical Connection The water heater requires a standard 3 prong 120 VAC 60 Hz properly grounded wall outlet Plug the 6ft long power cord into the wall outlet Gas Piping General Instructions e A manual gas control valve must be placed in the gas supply line to the water heater A union can be used on the connection above the shut off valve for the future servicing or disconnection of the unit e Check the type of gas and the gas inlet pressure before connecting the water heater If the water heater is not of the gas type that the building is supplied with DO NOT connect the water heater Contact the dealer for the proper unit to match the gas type e Check the gas supply pressure immediately
46. p to the 3 4 Ball Valve contractor engineer to determine the necessary components and 3 4 Union O Circulating Pump configuration of the particular system being installed This drawing does not imply compliance with local building code requirements It is the Py Check Valve FA Boiler Drain Valve responsibility of the contractor engineer to ensure installation is in accordance with all local building codes Confer with local building K Pressure Relief Valve x Solenoid Valve officials before installation 18 305 505 705 Indoor Manual Recommended Piping for Basic Installation Water Heater Equipment List QTY Water Heaters 1 Plumbing Installation 1 Kit Optional 3 4 Fittings Include 2 Unions 2 Ball Valves 2 Drain Valves and 1 Pressure Relief Valve Gas Supply 3 4 Hot Water Supply Line 3 4 Cold Water Supply Line For Building Fixtures KEY This is not an engineered drawing It is intended only as a guide and not as a replacement for professionally engineered project drawings This 3 4 Ball Val I Pressure Regulator drawing is not intended to describe a complete system It is up to the St contractor engineer to determine the necessary components and 3 4 Union O Circulating Pump configuration of the particular system being installed This drawing does not imply compliance with local building code requirements It is the TI Check Valve ped Boiler Drain Valve responsibility of the contracto
47. r Metal Fab Corr Guard Vent Air specific part numbers and instructions Intake System Listed and Tested Vent Products for the 705 Model Horizontal Adjustable Appliance Vertical Horizontal Horizontal f oncentric Adapter Termination Termination ae Concentric Termination ee Heat Fab Saf T Vent 9401AMTK 540001 9 ProTech x FSDVPTBOALH FSDVWMTPALH FasNSeal FSAAUA FSRCA FSBS4 FSDVWTA FSEDVWMTP4LH Metal Fab Corr Guard 4CGOA 4CGSWC 4CGSWMCM eos Vent Manufacturer Contact Information for Installation Instructions and Parts Lists Ubbink Heat Fab Z Flex Telephone 866 677 4960 Telephone 800 772 0739 Telephone 800 654 5600 500 Tennessee Waltz Parkway Fax 413 863 4803 Fax 888 889 3539 Ashland City TN 37015 E mail custsvc heat fab com E mail sales z flex com Web Site www heatfab com Web Site www novaflex com ProTech Systems Inc Metal Fab Inc Telephone 800 766 3473 Telephone 800 835 2830 518 463 7284 316 943 2351 Fax 518 463 5271 Fax 316 943 2717 E mail support protechinfo com E mail info mitlfab com Web Site www protechinfo com Web Site www metal fabinc com 24 305 505 705 Indoor Manual Flue Terminal Clearances ANS Z21 10 3 e CSA 4 3 CORNER DETAIL AIR SUPPLY INLET VENT TERMINAL AREA WHERE TERMINAL IS NOT PERMITTTED Wen A Clarence above grade veranda porch deck orb 2 Cleerenceowindow or soor tat maybe opened
48. r engineer to ensure installation is in accordance with all local building codes Confer with local building K Pressure Relief Valve i Solenoid Valve officials before installation 305 505 705 Indoor Manual 19 Recommended Piping for Circulation Systems NOTE For residential and commercial applications this piping arrange ment maintains full warranty For this application Pump should be controlled by an Aqua stat Timer or Combination Aquastat and Timer Pump to be sized to maintain circulation loop temperature The pump should be sized to overcome the pressure loss through the tank water heater and supply and return plumbing Pump to be of bronze or stainless construction IMPORTANT Connect the building Water Heater Equipment List QTY Water Heaters 1 Plumbing Installation 1 Kit Optional 3 4 Fittings Include 2 Unions 2 Ball Valves 2 Drain Valves and 1 Pressure Relief Valve lt q _ 3 4 Gas Connection d Gas Supply LO Minimum 3 4 Cold Water Supply Line Tank Water Heater to be Sized for Heat Loss of Circulation Loop Building Supply Electric Water return line to the hot water supply line Heater as close as possible to the water 9 Building heater Fixtures Expansion Tank N KEY This is not an engineered drawing Itis intended only as a guide and not as a replacement for professionally engineered project drawings This Pressure R
49. ron components may oxidize creating rust that will clog the inlet filter of the water heater 305 505 705 Indoor Manual 35 Dimensions 305 and 505 Models 705 Model i A 8 B pues i ie e a i Ep D D CEN gt 6 1 B HA 1 m3 uu K G E TM MEE F J G 0 0 in mm c 3 5 F J 5 5 4 6 4309 22682 From base to cold connection 2 0 50 2 0 50 From base to hot connection 1 6 41 1 6 41 This is the minimum dimension from the wall The wall bracket is adjustable to allow an additional 1 57 inches 40 mm Bn From base to gas connection 1 6 40 1 6 40 K 36 305 505 705 Indoor Manual Ladder Diagram HOT 3A FUSE ARRESTER d VARISTOR WATER FLOW SENSOR WATER FLOW CONTROL DEVICE BY PASS FLOW CONTROL DEVICE BY PASS SERVO MODEL ONLY OUTGOING WATER MISTOR OUR HEAT EXCHANGER HERMISTO INDOOR MODEL ONLY CONTROL DEVICE BY PASS FLOW CMS CONTROL DEVICE CIRCUIT NEUTRAL FROST SENSING SWITCH Ss WS ANTI FROST HEATER 1 H H H 691 H H H H
50. s the period provided by state law is less Some states do not allow limitations on how long an implied Warranty lasts so the above limitation may not apply to you This Warranty gives you specific legal rights and you may also have other rights which vary from state to state 305 505 705 Indoor Manual 39 ATT 2287 282100 060 00012 39535 3 Printed in Japan 09 01
51. t 1 Multi Unit connection kit and 1 Multi Unit connection cable 1 Multi Unit connection kit and 2 Multi Unit connection cables 1 Multi Unit connection kit and 3 Multi Unit connection cables 30 305 505 705 Indoor Manual Temperature Controller Installation Location Indoor models have their controller built into the front panel Additional controllers can also be installed e controller should be out of reach of small children e Avoid locations where the controller may become hot near the oven or radiant heater e Avoid locations in direct sunlight The digital display may be difficult to read in direct sunlight Configurations A maximum of 4 temperature controllers can be installed for a water heater or bank of water heaters Controllers can only be wired in parallel Controllers cannot be wired in series If 4 temperature controllers are installed simultaneously press the Priority and On Off buttons on the fourth controller until a beep sounds Cable Lengths and Size The cable for the temperature controller should be a non polarized two core cable with a minimum gauge of 22 AWG The maximum cable length from each controller to the water heater depends on the total number of wired controllers connected to the water heater e Avoid locations where the temperature controller could be splashed with liquids e Do not install in locations where it can be adjusted by the public Contr
52. ter heater is ready to NOTICE Check local codes for the maximum supply hot water water temperature setting allowed when used in nursing homes The priority can only be changed schools day care centers and all while no hot water is running other public applications 2 Press the A or V buttons to NOTICE obtain the desired temperature setting Hot water temp If a newly installed unit with a temperature controller has not been powered for at least 6 hours then the temperature will return to the default setting of 104 F 40 C if power is interrupted All hot water sources are able to provide water at this temperature setting until it is changed again at this or another temperature NOTICE There may be a variation between controller NOTICE the temperature displayed on the temperature controller and the temperature at the tap due to weather conditions or the length of pipe to the water heater Temperature Options Without a Temperature Controller The default temperature setting for this appliance 120 F 49 C 140 F 60 C installed without a temperature controller is 120 F SuitebN ee 49 C If desired the temperature setting can be DM changed to 140 F 60 C by adjustment of a dip ON EON switch l F 2 2 Set dip switch 5 to ON to obtain 140 F water 3 3 temperature setting i Set dip sw
53. ter tap the fan on the water heater continues to run The fan is designed to continue running for a short time after the flow of water stops This is to ensure constant water temperatures during rapid starting and stopping as well as exhausting any residual gas flue products from the unit Accessing Operating Information To display the most recent error codes press and hold the On Off button for 2 seconds While holding the On Off button press the A button The last 9 error codes will flash one after the other To exit this mode press the On Off and A button as before To display the water flow through the water heater press and hold the A button for 2 seconds and without releasing the A button press the On Off button To display the outlet water temperature press and hold the button for 2 seconds and without releasing the V button press the On Off button Water Quality Consideration of care for your water heater should include evaluation of water quality If the water quality exceeds the target levels provided in the table you may want to treat or condition the water Source Part 143 National Secondary Drinking Water Regulations TDS Total Dissolved Up to 500 mg L Solids 305 505 705 Indoor Manual 11 Flushing the Heat Exchanger Error Code LC or 00 An LC or 00 error code indicates the unit is beginning to lime up and must be flushed Failure to flush the appli
54. the valve and the line e relief valve discharges periodically this may be due to thermal expansion in a closed water supply system Contact the water supplier or local plumbing inspector on how to correct this situation Do not plug the relief valve e Neither this water heater nor the American National Standard ANSI Z21 10 3 Canadian Standard CSA 4 3 requires a combination temperature and pressure relief valve for this appliance However local codes may require a combination temperature and pressure relief valve In addition the solenoid valves should be connected electrically to a surge protector with terminals that attaches to the PC board in the unit This allows the solenoid valves to operate if the water heater is disabled due to an error code The solenoid valves and the surge protector with terminals are available for purchase separately 305 505 705 Indoor Manual 17 Freeze Protection Pipin Warranty does not cover damage due to freezing Vacuum Breaker When electrical power and gas are supplied to the water heater it will not freeze in environments as cold as 30 F when protected from direct wind exposure Water Heater In the event of a power failure at temperatures below freezing the water heater should be drained of all water to prevent freezing damage The unit may be drained manually However it is highly recommended that drain down solenoid valves be installed that will automatically
55. uel Gas Code ANSI Z223 1 NFPA 54 or the Natural Gas and Propane Installation Code CSA B149 1 e The appliance when installed must be electrically grounded in accordance with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA 70 or the Canadian Electrical Code CSA C22 17 e The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1 2 psi 3 5 kPa 13 84 in W C e The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psi 3 5 kPa 13 84 in W C It is highly recommended that all installers attend a product knowledge class e Follow the installation instructions and those in Care and Maintenance for adequate combustion and ventilation air e The appliance should be located in an area where water leakage of the unit or connections will not result in damage to the area adjacent to the appliance 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 The pan must not restrict combustion air flow e he flow of combustion and ventilation air shall not be obstructed e This appliance is not
56. w 2 Referto the table to find the maximum vent length based on the number of elbows 3 Follow the applicable note Example If you have one elbow then your maximum vent length is 35 feet 10 7 m If your actual length is greater than 15 ft 4 6 m then move dip switch no 1 SW1 to OFF Number of 90 Elbows EBKERENSEREREBKE 41 ft O 35 ft 29 ft 23 ft 17 ft 11 ft o ft amp 12 5 m 10 7 m 8 8 m 7 0 m 5 2 m 3 4 m 1 5 m If the length is greater than 21 ft 6 4 m then move ON dip switch 1 SW1 to OFF Notes DOO o If the length is greater than 15 ft 4 6 m then move F dip switch no 1 SW1 to OFF If the length is greater than 9 ft 2 7 m then move dip switch no 1 SW1 to OFF Move dip switch no 1 SW1 to OFF 3 OQ tA RA t If you have a longer vent length dip switch no 1 is required to be in the OFF position This ensures the water heater will run properly Blocked flue error codes and shutdowns may result if dip switch no 1 is not in the correct position On the 505 model the maximum water flow capacity will be reduced by about 1096 when dip switch no 1 is OFF 305 505 705 Indoor Manual 23 Venting Products Listed and Tested Vent Products for the 305 and 505 Models Ubbink Rolux Vent System Heat Fab Saf T Vent SC system Refer to the manufacturer s technical literature fo
57. ze any person or company to assume for it any obligation or liability in connection with the replacement of the product If it is determined that repair of a product is not possible the product will be replaced with a comparable product at the manufacturer s discretion If a component or product returned to the manufacturer is found to be free of defects in material or workmanship or damaged by improper installation or damaged during return shipping the warranty claim for product parts and labor may be denied 38 305 505 705 Indoor Manual How get service You must contact a factory authorized licensed contractor or authorized service provider for the repair of a product under this Warranty For the name of a qualified authorized service provider please contact your place of purchase call 1 866 677 4960 or write to 500 Tennessee Waltz Parkway Ashland City TN 37015 Proof of purchase is required to obtain warranty service You may show proof of purchase with a dated sales receipt What is not covered This Warranty does not cover any failures or operating difficulties due to the following accident abuse or misuse alteration misapplication force majeure improper installation such as but not limited to inadequate water quality condensate damage improper venting incorrect gas type incorrect gas or water pressure or absence of a drain pan under the appliance improper maintenance such as but not limited to scale
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