Noritz NR501-OD Installation Manual Download Page 16 | Manualshive

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16

the Heat Exchanger must be flushed.

is set to "Flushing Mode".

from an authorized Noritz wholesaler.

located

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Summary of Contents for NR501-OD

Page 1: ...follow the in stallation instructions Failures and damage caused by erroneous work or work not as instructed in this manual are not covered by the warranty Check that the installation was done properly in accordance with this Installation Manual upon completion After completing installation please either place this Installation Manual in a plastic pouch and attach it to the side of the water heate...

Page 2: ...ories listed below are not included with the units but may be necessary for installation Cross Recessed Head Screw Q ty Shape Part Part Shape Q ty 1 Remote Controller Cord 26ft 8m 1 Isolation Valves includes pressure relief valve Pipe Cover PC 1S 1 1 Recess Box RB 510 1 Remote Controller Outdoor Junction Box Owner s Guide Warranty Installation Manual this document Isolation valves are necessary fo...

Page 3: ...kage at some time in the life of the product does exist The manufacturer will not be responsible for any water damage that may occur DANGER Indoor This water heater is for outdoor installation only Never install it indoors Do not enclose the termination with corrugated metal or other materials This will cause carbon monoxide poisoning and a potential fire hazard Check the Gas Check that the rating...

Page 4: ...the surrounding trees and animals The heat and moisture from the water heater may cause discoloration of walls and resinous materials or corrosion of aluminum materials Do not locate the vent termination directed towards a window or any other structure which has glass or wired glass facing the termination Install in a location where the exhaust gas flow will not be affected by fans or range hoods ...

Page 5: ...install the unit such as the wall of the second floor where the unit is out of reach When installing the unit in a common side corridor provide a clearance of 47 1 190mm or more in front of the unit Set the bottom edge of the exhaust port about 84 2 130mm from the corridor floor Handrail common side corridor balcony etc Handrail about 84 2 130mm Maintain the following clearance from both combustib...

Page 6: ...arance to service regulator vent outlet J Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance K Clearance to a mechanical air supply inlet L Clearance above paved sidewalk or paved driveway located on public property Clearance under veranda porch deck or balcony M 1 In accordance with the current ANSI Z223 1 NFPA 54 National Fuel Gas Code Clea...

Page 7: ...Do not drop or apply unnecessary force to the device when installing Internal parts may be damaged and may become highly dangerous Install the unit on a vertical wall and ensure that it is level Locating Screw Holes Mounting Structure When installing with bare hands take caution to not inflict injury Be careful not to hit electrical wiring gas or water piping while drilling holes Item CAUTION Be s...

Page 8: ...ter heater as with any gas appliance is the sole responsibility of the installer The installer must be professionally trained to do such work and must always follow all local and national codes and regulations Gas line sizing calculations must be performed for every installation Please contact Noritz America at 866 766 7489 if you have any questions or concerns CAUTION Regulators Ensure that all g...

Page 9: ... length from the meter or regulator so that the following supply pressures are available even at maximum demand WARNING Natural Gas Supply Pressure Min 4 WC Max 10 5 WC LP Gas Supply Pressure Min 8 WC Max 14 WC Reference Tools Sample Calculations The tables and samples below are for reference only The professional sizing and installing the gas line should always run the appropriate calculations be...

Page 10: ...Outlet C Outlet D Outlet E Section 4 Table 2 For 8 WC 10 5 WC initial supply pressure Maximum Natural Gas Delivery Capacity 3 0 Pressure Drop Values in Table are in Cubic Feet of Gas per Hour 0 60 Specific Gravity 3 0 Pressure Drop 8 0 WC or greater supply pressure inlet pressure less than 2psi Contact your gas supplier for BTU Cubic Foot ratings For simplification of your calculations 1 Cubic Foo...

Page 11: ...y all appliances are receiving a minimum of 5 WC for NG or 8 WC for LP If all appliances are not receiving the minimum inlet pressure the gas piping system may need to be changed CAUTION Pipe Size Length including fittings 10 20 30 40 50 60 70 80 90 100 125 150 200 3m 6m 9m 12m 15m 18m 21m 24m 27m 30m 38m 45m 60m 1 2 275 189 152 129 114 103 96 89 83 78 69 63 55 3 4 567 393 315 267 237 217 196 185 ...

Page 12: ...potable water may not be connected to any heating system or components previously used with a nonpotable water heating appliance When water is required in one part of the system at a higher temperature than in the rest of the system means such as a mixing valve shall be installed to temper the water to reduce the scald hazard Installation and service must be performed by a qualified plumber In the...

Page 13: ...er on the inlet If this is not done local boiling will occur inside the water heater causing abnormal sounds and decreasing the durability of the heat exchanger Freeze Prevention Freezing is prevented within the device automatically unless the outside temperature without wind is below 4 F 20 C If this model is installed in an area where the outside temperature can approach freezing conditions of 4...

Page 14: ...ment Guidelines If this water heater will be installed in an application where the supply water is hard the water must be treated with either the Noritz H2Flow or ScaleShield or a water softener Refer to the below tables for suggested treatment and maintenance measures to be taken based on the water hardness level If this water heater will be installed in an application where the supply water is h...

Page 15: ...15 the Heat Exchanger must be flushed is set to Flushing Mode from an authorized Noritz wholesaler ...

Page 16: ...16 located ...

Page 17: ...ires water for space heating at a higher temperature than for other uses means such as a mixing valve shall be provided to temper the water for the other uses to help prevent scalding 7 The water heater cannot be used for space heating applications only 8 Only POTABLE water may be plumbed through the water heater 6 Expansion tank required if a backflow preventer is installed NORITZ Tankless Gas Wa...

Page 18: ...n The electrical supply required by the water heater is 120VAC at 60 Hz The power consumption may be up to 182W Use an appropriate circuit Do not disconnect the power supply when not in use When the power is off the freeze prevention in the water heater will not activate resulting in possible freezing damage Do not let the power cord contact the gas piping Tie the redundant power cord out side the...

Page 19: ...ater back into operation press the Power On Off Button on the optional remote controller To keep the water heater off let the unit sit for 30 sec to return to the original display When changing the temperature make sure to confirm with the customer that the temperature of the hot water will be very high and that there is a risk of scalding Hot water heater temperatures over 125 F 52 C can cause se...

Page 20: ...r On Off Button Flow Meter Alarm Set buttton Setting Button Remote Controller Setting Procedure 1 Turn the water heater off by pressing the Power On Off Button on the remote controller 2 Disconnect then reconnect electrical power to the water heater 3 Press the Flow Meter Alarm Set Button and hold it in for 2 seconds or more 4 Press the Flow Meter Alarm Set Button until the remote controller displ...

Page 21: ...before opening the relief valve and make sure that water draining out of the valve will not cause any damage If the relief valve discharges periodically it may be due to thermal expansion in a closed water system Contact the water supplier or a local plumbing inspector on how to correct this situation Do not plug the relief valve See Operation Manual for further maintenance Warning There is a scal...

Page 22: ...ns stop and follow the instructions on page 3 of Owner s Guide 6 Turn the gas control manual valve counterclockwise to the on position 7 Turn on electric power to the unit 8 The unit will now operate whenever hot water is called for If the unit will not operate follow the shutdown instructions and call a service technician Shutdown Instructions 1 Stop any water demand 2 Turn off electric power 3 T...

Page 23: ...ET 2 0 50mm 3 3 85mm 4 7 120mm 0 4 10mm 0 4 10mm 21 3 542mm 19 2 487mm 1 2 31mm 0 3 0 6 3 6 5ᨴ16 5mm OBLONG HOLE 2 0 3 0 5 6 5 13mm OBLONG HOLE 1 6 40mm 3 2 80mm 1 8 45mm 3 8 97mm 1 6 40mm 1 4 36mm 5 5 139mm 8 2 208mm 9 9 252mm 11 7 296mm WIRING THROUGHWAY AC120V WIRING THROUGHWAY GAS INLET COLD WATER INLET VIEW FROM TOP HOT WATER OUTLET HEIGHT OF EACH FITTING FROM BOTTOM OF CASE inch mm NR501 OD ...

Page 24: ...40mm 2 0 50mm 3 3 85mm 4 7 120mm 0 4 10mm 0 4 10mm 21 3 542mm 19 2 487mm 1 2 31mm 3 0 3 0 6 6 5ᨴ16 5mm OBLONG HOLE 2 0 3 0 5 6 5 13mm OBLONG HOLE HEIGHT OF EACH FITTING FROM BOTTOM OF CASE mm inch NR662 OD HOT WATER OUTLET 1 8 45mm COLD WATER INLET 1 9 49mm GAS INLET 2 0 50mm 4 φ0 5 φ13mm 2 4 60mm 3 5 90mm 4 7 120mm 4 φ0 5 φ13mm 1 6 40mm 3 2 80mm 1 8 45mm 3 8 97mm 1 6 40mm 1 4 36mm 5 5 139mm 8 2 2...

Page 25: ...n Location The remote should be installed in an easily accessible location Avoid installing in a place where water or steam can come into contact with the controller Avoid locations where special chemical agents e g benzene fatty and oily detergents are used Avoid outdoor installation or installation in an indoor location where it will be exposed to direct sunlight Connection of Remote Controller ...

Page 26: ...cord Phillips Roundhead Wood Screw Wall Anchor 3 Remove the cover of the remote control mark the location of the screw holes and drill holes for the wall anchors 4 Insert the wall anchors screw the remote control to the wall and replace the cover Remote Controller Cord Wall Packing take off the paper Remote Control Wires Rear Side of Remote Controller ...

Page 27: ...the wall pipe containing the remote controller wires through the hole 4 Slide the junction box packing and the junction box over the remote controller wires and wall pipe protruding from the outside wall Wall packing Wall pipe Take out the pipe about 3 4 from the wall Junction Box Box Nut Junction Box Packing Take off the paper 5 Slide the box nut over the remote controller wires and screw it onto...

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