Noritz ecoTOUGH NRC661-OD-LP Installation Manual Download Page 15 | Manualshive

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15

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 ecoTOUGH NRC661-OD-LP

Page 1: ...y and 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 p...

Page 2: ...d 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 pre...

Page 3: ...the water supply as unexpected accidents may occur as a result Check Water Supply Quality If the water supply is in excess of 12 grains per gallon 200 mg L of hardness acidic or otherwise impure trea...

Page 4: ...e 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 terminatio...

Page 5: ...nstall 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 Se...

Page 6: ...rance 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 Clear...

Page 7: ...o 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 Locati...

Page 8: ...er 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 reg...

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...

Page 10: ...Btuh NRC661A OD series 120 000 Btuh 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 Spec...

Page 11: ...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 Leng...

Page 12: ...upply potable water may not be connected to any heating system or components previ ously used with a nonpotable water heating appliance When water is required in one part of the system at a higher tem...

Page 13: ...r 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...

Page 14: ...ng and form 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...

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: ...nearest drain is above the water heater will require the use of a condensate pump Size the pump to allow for a maximum condensate discharge of 0 8 GPH from the water heater Horizontal runs must be slo...

Page 18: ...n of piping and form Condensate piping to floor drain Condensate piping with pump Slope pipe downwards 1 4 per foot or more The end of the drain pipe must have an air gap 1 or more USE NON CORROSIVE M...

Page 19: ...include an integrated shut off and service valve with unions and a pressure relief valve Notes 1 Noritz recommends the use of an Isolation Kit with the installation These kits include an integrated sh...

Page 20: ...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 po...

Page 21: ...er heater 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 t...

Page 22: ...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 the...

Page 23: ...efore 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 w...

Page 24: ...s 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 w...

Page 25: ...90mm 3 0 3 0 6 6 5 16 5mm OBLONG HOLE 4 0 5 13mm WATER DRAIN VALVE HOT WATER OUTLET CONDENSATE DRAIN WATER DRAIN VALVE COLD WATER INLET WIRING THROUGHWAY GAS INLET AC120V WATER DRAIN VALVE WATER FILT...

Page 26: ...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 chemi...

Page 27: ...ord 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 rem...

Page 28: ...he 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 wa...

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