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8

Illustration

7.

 Installation 

Check

4. Drill holes for the remaining four screws.

5. Hang the unit again by the first screw, and then 

insert and tighten the remaining four screws.

6. Take waterproofing measures so that water does 

not enter the building from screws mounting the 

device.

•  Make sure the unit is installed securely so that it will 

not fall or move due to vibrations or earthquakes.

Securing to the wall

1. Drill a single screw hole, making sure to hit a stud.
2. Insert and tighten the screw and hang the  unit by  

the upper wall mounting bracket.

3. Determine the positions for the remaining four screws 

(two for the top bracket and two for the bottom), and 

remove the unit. 

•  The weight of the device will be applied to the wall. If the strength of the wall is not 

sufficient, reinforcement must be done to prevent the transfer of vibration.

•  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 sure to do

Mounting Bracket

(upper)

Anchoring Screw

Location of Screw Hole

Locating Screw Holes

Installations at Elevations 

Above 2,000 ft.

•  Adjust  the  dip  switches  as  illustrated  in  the  table  to 

the right if this water heater is installed at an altitude 

of 2000 ft. (610m) or higher. 

•  Disconnect  power  to  the  water  heater  before 

changing  the  dip  switches.    Failure  to  perform  this 

step will result in a "73" code displayed on the remote 

controller  and  a  cease  in  operation.    If  this  occurs, 

disconnect, then reconnect power to the water heater 

to reset the system.

  Note : Please refer to page 23 for the location of the 

dip switch bank.

* Do not change any other dipswitches.

* High elevation adjustment.

6

5

2,001 - 4,000 ft (611 - 1,220m)

0 - 2,000 ft (0 - 610m)

ON=

OFF=

4,001 - 6,000 ft (1,221 - 1,830m)
6,001 - 8,000 ft (1,831 - 2,440m)

Summary of Contents for NC199-OD

Page 1: ...k 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 installati...

Page 2: ...cessary for installation Quick Connect Cord QC 2 Q ty Shape Part Part Shape Q ty 1 1 Remote Controller Cord 26ft 8m 1 each Isolation Valves includes pressure relief valve Pipe Cover PC 2S GRY 1 1 Owne...

Page 3: ...ector Cord Connector 3 Quick Connect Multi System Installation The Quick Connect Multi System allows the installation of two units together utilizing only the Quick Connect Cord Typical Plumbing When...

Page 4: ...er Than Those Specified Do not use for other than increasing the temperature of the water supply as unexpected accidents may occur as a result Check Water Supply Quality If the water supply is in exce...

Page 5: ...eat 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 ot...

Page 6: ...re in width Provide clearance of 24 600mm or more in front of the unit to facilitate inspection and repair Do install the unit such as the wall of the second floor where the unit is out of reach When...

Page 7: ...pliance K Clearance to a mechanical air supply inlet 6 ft 1 83 m L Clearance above paved sidewalk or paved driveway located on public property Clearance under veranda porch deck or balcony 7 ft 2 13 m...

Page 8: ...arts 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...

Page 9: ...e 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 in...

Page 10: ...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 11: ...45 13 5m Use 50 15m 175 000 Btuh requires 1 Outlet E 25 7 5m Use 30 9m 199 900 Btuh requires 3 4 Section 4 45 13 5m Use 50 15m 355 000 Btuh requires 1 1 4 Natural Gas Meter Noritz Tankless Gas Water...

Page 12: ...ce to verify 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 Pi...

Page 13: ...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...

Page 14: ...let 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...

Page 15: ...s an example Please check with the actual water heater about the position of piping and form If this water heater will be installed in an application where the supply water is hard the water must be t...

Page 16: ...lve V3 and then the other to the circulating pump 4 Connect the drain hose H2 to the circulating pump 5 Connect the drain hose H3 to the drain valve V4 6 Pour 1 gallon of and gallon water into the buc...

Page 17: ...The code C60 is displayed on the Remote Controller when the water heater detects the flow of the flushing solution When 1 minute passes the code C60 will change to C59 on the Remote Controller 6 When...

Page 18: ...pply valves and water out let valves 9 Check for correct operation of the water heaters is displayed when the Main Water Heater s bule connector is connected is displayed when the Sub Water Heater s b...

Page 19: ...OG ALARM OFF 120 F Temp CCC Error unit 01 Beep Beep Press ON ON ALARM OFF STOP OFF Display Example In case of Unit 1 s blue connector is connected System down is displayed when the all unit s blue con...

Page 20: ...the Procedure 3 1 3 5 7 Disconnect the blue connector for flushing The Code CCC goes out on the Remote Controller 8 Close the Front Covers 9 Open the gas supply valves and water outlet valves 10 Check...

Page 21: ...ve 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 shut off and service valve with unions and a pre...

Page 22: ...ly required by the water heater is 120VAC at 60 Hz The power consumption may be up to 228W or higher if using optional accessories Use an appropriate circuit Do not disconnect the power supply when no...

Page 23: ...removed 185 F 85 C 140 F 60 C 130 F 54 C 120 F 50 C To change the default temperature adjust the dip switches as described below The default temperature is 120 F 50 C 1 Disconnect electrical power to...

Page 24: ...ode and cause problems Be sure to hand tighten when screwing to the terminal block Power tools may cause damage to the terminal block 1 Check to make sure that the remote controller cord has plenty of...

Page 25: ...e controller 2 Disconnect then reconnect electrical power to the water heater 3 Press the MENU Button inside the cover select Initial settings using the Buttons 4 Press the ENTER button the Initial se...

Page 26: ...m a wall circuit to the pump 5 Replace the front cover Pump Wiring This feature is not available when using the Quick Connect Multi System feature Relay connection with larger pumps 85 W 1 Locate and...

Page 27: ...mp Ground wire Connector Use one of the vacant holes Connector Connecting Quick Connect Cord 2 Caution For Quick Connect Multi System Installation use part QC 2 only sold separately Quick Connect Cord...

Page 28: ...a proper blue color and consistency If the flame does not appear normal the burner may need to be cleaned If the burner needs to be cleaned it must be performed by a qualified service technician Do no...

Page 29: ...ower 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 a...

Page 30: ...OBLONG HOLE 1 8 45mm 2 2 55mm 2 2 56mm GAS INLET COLD WATER INLET HOT WATER OUTLET AIR INLET AIR INLET WIRING THROUGHWAY WATER DRAIN VALVE WATER FILTER HOT WATER OUTLET WATER DRAIN VALVE WIRING THROU...

Page 31: ...nutes of connecting electrical power before turning on the Power On Off Button press the or button on the remote controller and hold until the display blinks 99 If 99 does not blink on the remote cont...

Page 32: ...is system will make hot water more quickly available to remote fixtures The pump will circulate water through the loop until the entire loop is warm and then the system controller will turn off the pu...

Page 33: ...stat Pump Control Wires use external relayU Unit 1 Set Yes for the question Start pump rotation in system settings See SC 301 6M Installation Manual When installing 2 pumps in parallel Set Yes for the...

Page 34: ...PCB Power PCB B5 B5 System Controller No 5 No 4 No 3 No 2 Remote Control terminal block Remote control terminal block Remote Controller Cord PCB Power PCB PCB Power PCB Multi System Wiring Use SC 301...

Page 35: ...order to use this product safely read this installation manual carefully and follow the installation instructions Potential dangers from accidents during installation and use are described below Clos...

Page 36: ...List The value in indicates the quantity Remote Controller Mounting bracket Round countersunk head wood screw Wall anchor Raised countersunk head screw For junction box installation Machine screw Whe...

Page 37: ...f the remote controller and the frame pull the entire decorative frame forward while pressing the sections indicated where the fingers are in the figure below If it does not come off insert a flat hea...

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