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28

305, 505, 705 Indoor Manual

Air Intake Assembly

The air intake system consists of a field supplied 4
inch diameter stainless steel, Schedule 40 PVC, ABS
or CPVC pipe. A maximum 6 feet of semi-rigid
flexible aluminum ducting can also be used. Foil
wrapped dryer vent and cell core products are not
authorized.

The air intake has a zero clearance to combustibles.

Air Intake Connection

1.Drill 2 small holes at the end of the air intake pipe.

2.Slide the pipe over the air intake terminal.

3.Using a level, ensure the pipe is straight up and

down.

4.With self tapping screws, attach the pipe to the air

intake terminal.

5.Apply a bead of silicone around the pipe and air

intake terminal, ensuring an air tight connection.

Exhaust Pipe Assembly

Refer to the manufacturer’s installation instructions for
the specific exhaust vent system.

Venting Clearances to Combustibles

Vent Size

Enclosed Unenclosed

Horizontal &

Vertical

Horizontal &

Vertical

4" (102 mm)

4" (102 mm)

1" (26 mm)

4

3

1

2

COMBUSTION AIR /

INTAKE

EXHAUST

SLOPE INTAKE AND EXHAUST

TOWARD OUTSIDE TERMINATION

MINIMUM 1/4" PER FOOT

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.

Flue

Installation

for

the

705

Model

8

”

6

”

Intake

Optional
Intake

Vent

The vent termination and air
intake must be in the same
pressure zone and face the
same direction.

12”

4”

12” MIN. ABOVE

GRADE OR

SNOW LEVEL

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Содержание 305 Exterior

Страница 1: ... performed by a qualified installer service agency or the gas supplier WARNING If the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal injury or death Operation and Installation Manual INSTALLER Leave this manual with the appliance CONSUMER Retain this manual for future reference Table of Contents 2 Consumer Safety Informatio...

Страница 2: ... the Water Heater 14 Electrical Connection 15 Gas Piping General Instructions 15 Pipe Sizing Procedure Example 16 Water Piping General Instructions 17 Pressure Relief Valve 17 Freeze Protection 17 Freeze Protection Piping 18 Recommended Piping for Basic Installation 19 Recommended Piping for Circulation Systems 20 Optional Piping for Circulation Systems 21 Venting Instructions Intake Exhaust Guide...

Страница 3: ...le at 120º F 49º C or at 140º F 60º C 140º F 60º C Minimum Temperature Setting 98º F 37º C Weight 50 lb 23 kg 55 lb 25 kg Efficiency Rating 84 Noise level 49 dB Electrical Consumption Normal 65 W 79 W 99 W Standby Anti frost Protection 100 W 116 W By Pass Control Fixed Electronic Minimum Gas Supply Pressure Natural Gas 5 0 inch W C Propane 8 0 inch W C Maximum Gas Supply Pressure Natural Gas 10 5 ...

Страница 4: ...his symbol alerts you to potential hazards that can kill or hurt you and others Indicates an imminently hazardous situation which if not avoided will result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury It ma...

Страница 5: ... 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 Description of Operation 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 Operating Instructions...

Страница 6: ...emperature setting for this appliance installed without a temperature controller is 120º F 49º C If desired the temperature setting can be changed to 140º F 60º C by adjustment of a dip switch Set dip switch 5 to ON to obtain 140º F water temperature setting Set dip switch 5 to OFF default to obtain 120º F 2 Press the or buttons to obtain the desired temperature setting All hot water sources are a...

Страница 7: ...g valve must also be installed to limit the potable hot water temperature to a safe temperature Water temperatures over 125º F 51º 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 Commercial Controller These settings require the commercial controller which ...

Страница 8: ...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 t...

Страница 9: ... 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 12 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 pressur...

Страница 10: ...e build up Ensure fan blade is tight on motor shaft and is in good condition Replace sensor 52 Modulating Solenoid Valve Signal Abnormal Check modulating gas solenoid valve wiring harness for loose or damaged terminals Measure resistance of valve coil 61 Combustion Fan Failure Ensure fan will turn freely Check wiring harness to motor for damaged and or loose connections Measure resistance of motor...

Страница 11: ... 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 Consideration of care for your water heater should include evaluation of water quality If the water quality exceeds the target levels ...

Страница 12: ...ater 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 ...

Страница 13: ...t pressures in excess of 1 2 psi 3 5 kPa 13 84 in W C 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 Follow the installation instructions and those in Care and Maintenance for adequate combustion and ventil...

Страница 14: ...o top to floor ground to Combustibles to Non Combustibles 305 505 705 305 505 705 Top of Heater 6 inches 152 mm 12 inches 305 mm 2 inches 51 mm 2 inches 51 mm Back of Heater 0 zero 0 zero 0 zero 0 zero Front of Heater 6 inches 152 mm 24 inches 610 mm 6 inches 152 mm 24 inches 610 mm Sides of Heater 2 inches 51 mm 2 inches 51 mm 1 2 inch 13 mm 1 2 inch 13 mm Floor Ground 12 inches 305 mm 12 inches ...

Страница 15: ...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 bef...

Страница 16: ...ropane Gas Pipe Size inches 3 4 1 1 1 4 1 1 2 10 273 514 1060 1580 20 188 353 726 1090 30 151 284 583 873 40 129 243 499 747 50 114 215 442 662 60 104 195 400 600 70 95 179 368 552 80 89 167 343 514 90 83 157 322 482 100 79 148 304 455 125 70 131 269 403 150 63 119 244 366 175 58 109 224 336 200 54 102 209 313 Length Length Pipe Size inches 1 2 3 4 1 1 1 4 10 291 608 1150 2350 20 200 418 787 1620 ...

Страница 17: ... used with a nonpotable water heating appliance Ensure that the water filter on the water heater is clean and installed 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 The relief valve must comply with the standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems AN...

Страница 18: ...damage NOTICE Pressure Relief Valve 3 4 Ball Valve 3 4 Union Check Valve S Pressure Regulator Circulating Pump Solenoid Valve Boiler Drain Valve KEY Gas Supply Minimum 3 4 Cold Water Supply Line Minimum 3 4 Hot Water Supply Line S 1 2 Minimum Normally Open Solenoid Valve 3 4 Minimum Normally Closed Solenoid Valve Route to Floor Drain Vacuum Breaker NOTE ALL pipe and fittings shown below dashed lin...

Страница 19: ...rain Valve 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 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 buildi...

Страница 20: ... 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 requirement...

Страница 21: ...eturn plumbing Pump to be of bronze or stainless construc tion 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 dra...

Страница 22: ...ith the vent system You must use vent components that are certified and listed with the water heater model Do not combine vent components from different manufacturers The vent system must vent directly to the outside of the building and use outside air for combustion Venting should be as direct as possible with a minimum number of pipe fittings Avoid dips or sags in horizontal vent runs by install...

Страница 23: ... 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 10 when dip switch no 1 is OFF NOTICE Number of 90 Elbows 0 1 2 3 4 5 6 41 ft 1 12 5 m 35 ft 2 10 7 m 29 ft 3 8 8 m 23 ft 4 7 0 m 17 ft 4 5 2 m 11 ft 4 3 4 m 5 ft 4 1 5 m 1 If the le...

Страница 24: ...ssee Waltz Parkway Ashland City TN 37015 Metal Fab Inc Telephone 800 835 2830 316 943 2351 Fax 316 943 2717 E mail info mtlfab com Web Site www metal fabinc com ProTech Systems Inc Telephone 800 766 3473 518 463 7284 Fax 518 463 5271 E mail support protechinfo com Web Site www protechinfo com Z Flex Telephone 800 654 5600 Fax 888 889 3539 E mail sales z flex com Web Site www novaflex com Manufactu...

Страница 25: ...ations A Clearance above grade veranda porch deck or balcony 12 inches 30 cm B Clearance to window or door that may be opened 12 inches 30 cm C Clearance to permanently closed window D 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 E Clearance to unventilated soffit F Clearance to outside corner G...

Страница 26: ...water heater terminals at different levels 12 12 36 INSIDE CORNER V V 0 91 m to ventilated or unventilated soffit or eve vent or to a deck or porch 0 30 m to an inside corner 0 30 m between water heater terminals at same level 0 61 m to wall or parapet 0 30 m between water heater terminals at same level 12 V V 1 52 m vertically between water heater terminals V 60 V Vent terminal represents concent...

Страница 27: ... 5 Install the 4 screws at the vent top and tighten the 4 screws at the bracket Secure the first vent component to the water heater with one self tapping screw at the hole located above the condensate collector Bracket Condensate Collector Securing Screw Horizontal Termination without using the Condensate Collector Maximum Height 5 feet 1 52 m Regions of cold climate will create more condensate in...

Страница 28: ... silicone around the pipe and air intake terminal ensuring an air tight connection Exhaust Pipe Assembly Refer to the manufacturer s installation instructions for the specific exhaust vent system Venting Clearances to Combustibles Vent Size Enclosed Unenclosed Horizontal Vertical Horizontal Vertical 4 102 mm 4 102 mm 1 26 mm 4 3 1 2 COMBUSTION AIR INTAKE EXHAUST SLOPE INTAKE AND EXHAUST TOWARD OUT...

Страница 29: ...EXHAUST TOWARD OUTSIDE TERMINATION MINIMUM 1 4 PER FOOT Horizontal with Concentric Termination Flue Installation for the 705 Model The vent termination and air intake must be in the same pressure zone 12 MIN ABOVE GRADE OR SNOW LEVEL 3 MAX 12 MIN 12 MIN COMBUSTION AIR PIPE EXHAUST PIPE ANTICIPATED SNOW LEVEL 3 3 MAX 12 MIN 12 MIN 3 MAX 12 MIN 12 MIN ...

Страница 30: ... cable or 1 Multi Unit connection kit 3 1 Multi Unit connection kit and 1 Multi Unit connection cable 4 1 Multi Unit connection kit and 2 Multi Unit connection cables 5 1 Multi Unit connection kit and 3 Multi Unit connection cables Guidelines Do not install both the 2 Unit connection cable and the Multi Unit connection kit because they are not designed to operate together Water heaters should be i...

Страница 31: ...ith 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 Number of Wired Controllers Maximum Cable Length for each Controller to Water Heater 1 328 ft 100 m 2 164 ft 50 m 3 or 4 65 ft 20 m Location Wire controllers in parallel Water Heater A maximum of 4 temperature controllers can...

Страница 32: ...the base of the unit and connect the wires to the controller terminals on the right hand side bottom of the PCB 11 Secure the controller cable using the clamp provided 12 Replace plastic cover over PCB and then replace the cover of the water heater Do not attempt to connect the temperature controllers with the power on There is 120 volt potential next to the temperature controller connections insi...

Страница 33: ...TO APPLIANCE 1 Turn off all electric power to the appliance using the ON OFF button 2 Set the thermostat to lowest setting 3 Locate the manual gas valve on the side of the heater Turn the manual valve clockwise to the full OFF position OPERATING INSTRUCTIONS 1 STOP Read the safety information above 2 Set the thermostat to lowest setting 3 Turn off all electric power to the appliance using the ON O...

Страница 34: ... 0 25 50 75 100 125 150 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 30 35 40 45 0 2 4 6 8 10 12 Technical Data Pressure Drop Curve Outlet Flow Data Water Flow gpm delta T Temperature Rise ºF 505 305 Pressure Loss ft head Pressure Loss psi Water Flow gpm 705 705 505 305 ...

Страница 35: ...ler 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 ...

Страница 36: ...C Height Unit 22 9 582 23 6 600 D Height with brackets 25 5 648 2 25 2 639 8 E Hot Water Outlet from wall 3 6 91 4 3 110 F Hot Water Outlet from center 4 3 110 2 4 61 G Cold Water Inlet from wall 2 8 70 3 7 94 H Cold Water Inlet from center 1 1 27 2 0 52 I Gas Connection from wall 4 3 109 2 2 56 2 J Gas Connection from center 3 5 89 4 3 110 From base to gas connection 1 6 40 1 6 40 From base to co...

Страница 37: ...V A B C SG SWITCHING POWERSUPPLY THERMISTOR CIRCUIT B SG RELAY 1 A WATERFLOW SENSOR CIRCUIT WATERFLOW CONTROLDEVICE CIRCUIT A SG A SG SG A QS SG FR FLAME DETECTING CIRCUIT FLAMEROD GND SG A REMOTE CONTROLLER CIRCUIT A B E PG A B C SG SG B VARISTOR ARRESTER GND SG WATERFLOW SENSOR WATERFLOW CONTROLDEVICE BY PASSFLOW CONTROLDEVICE M M DC12V DC170V D E PG SV3 SV2 SV1 SV0 RELAY DRIVING CIRCUIT D BY PA...

Страница 38: ...ity 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 c...

Страница 39: ...ically 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 li...

Страница 40: ...U287 084 00 Printed in Japan 09 01 ...

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