CONDENSING GAS COMBI BOILER Owner's Guide Models CB199-DV / CB180-DV Natural Gas(NG) / Liquid Propane Gas(LP) Thank you for purchasing this Noritz Condensing Gas Combi Boiler. Before using, please: Read this guide completely for operation instructions. Completely fill out the warranty registration card (included separately) and mail the detachable portion to Noritz America Corporation. Keep this guide (and the remainder of the warranty registration card) where it can be found whenever necessary.
Owner’s Guide – Table of Contents Chapter 1 Product Overview Operation Flow Chart 3 Chapter 2 Safety Regulations Safety Precautions 4 Before Operation 7 During Operation 9 Important Safety Information 11 Initial Operation 12 Control Panel Interface 13 Control Panel LCD Interface 14 Chapter 3 Unit Operation How to use Control Panel Chapter 4 Maintenance 1.Clock Setting 15 2. Setting Domestic Hot Water Temperature(DHW) 17 3. DHW Preheat Activated Setting 18 4.
Chapter 1. – Product Overview Operation Flow Chart Operation Flow Chart Domestic Hot Water Mode (DHW Mode) Pressure Relief Valve for Heating The Condensing Gas Combi Boiler discharges condensate. Pressure Relief Valve for Heating Air & Gas Mixing Burner Condensate Pipe Primary Heat Exchanger Secondary Heat Exchanger DHW Plate Plate Heat Heat Exchanger Exchanger Circulation Pump Auto Feeder Valve P E Condensate comes out from here.
Chapter 2. – Safety Regulations Safety Precautions Safety Precautions To avoid product damage, personal injury, or even possible death, carefully read, understand, and follow all the instructions in the Installation Manual and Owner’s Guide and on the Combi Boiler before installation, operation, or service. Noritz cannot anticipate every circumstance that might involve a potential hazard and our warnings are, therefore, not all-inclusive.
Chapter 2. – Safety Regulations Safety Precautions Safety Precautions WARNING OPERATING INSTRUCTIONS 1. STOP! Read the safety information on previous page. 2. Set the thermostat to lowest setting. (Do not use Combi Boiler unless it is completely filled with water.) 3. Turn OFF electrical power supply to the Combi Boiler. 4. This Combi Boiler is equipped with an ignition device which automatically lights the main burner. Do not try to light the burner by hand. 5.
Chapter 2. – Safety Regulations Safety Precautions Safety Precautions WARNING Proper care is your responsibility. Carefully read and understand the Operating Information in this guide before operating the Noritz Combi Boiler. Be fully aware of where the gas shut-off valve is located and how to operate it. Close the gas shut-off valve immediately if the appliance is subjected to fire, overheating, flood, physical damage, or any other damaging condition that might affect the operation of the unit.
Chapter 2. – Safety Regulations Before Operation Before Operation CAUTION 1. Check the gas being used. When the Combi Boiler is used or moved for the first time, user must check whether the type of gas being supplied matches the specific gas type for the appliance. The type of gas is indicated on the rating plate on side of the Combi Boiler. 4. Check the water valve. Please leave the appliance water supply valve open at all times (it must be closed during installation) Open 2.
Chapter 2. – Safety Regulations Before Operation Before Operation WARNING CAUTION Do not store flammable material in the appliance room. Pull out the power plug from the receptacle if lightning strikes. Do not place combustible items, such as newspapers or laundry, near the appliance or venting pipe. Burn Protection Do not store portable gas container, thinner, oil, or other flammable materials in the room. Otherwise, fire may break out.
Chapter 2. – Safety Regulations During Operation During Operation CAUTION Do not shut off the Combi Boiler. When you leave home for a long time, do not shut off the Combi Boiler. The Combi Boiler has a freeze protection function. The freeze protection feature will not work if electrical power, gas, or water is disconnected. Do not disassemble the Combi Boiler. Service must be performed by a qualified installer, service agency and gas supplier. Otherwise, Warranty will be voided.
Chapter 2. – Safety Regulations Important Safety Information Important Safety Information CAUTION • Do not drink water that has been inside the unit for an extended period of time. Do not drink the first use of Domestic Hot Water from the unit in the morning. • Clean the filter on the water inlet as frequently as required by the quality of your local water. • Keep the area around the unit clean. If boxes, weeds, cobwebs, cockroaches etc. are in the vicinity of the unit, damage or fire can result.
Chapter 3. – Unit Operation Initial Operation Initial Operation • Before the first use of your Combi Boiler, make the following preparations. 1. Open the water pipe valve. CLOSED OPEN 2. Open a hot water fixture/faucet to confirm that water is available, and then close the fixture/ faucet again. Hot Water Fixture/Faucet Auto Feeder Inlet Gas Supply DHW Pressure Relief Valve Drain 3. Open the gas supply valve. DHW Outlet DHW Inlet Heating Supply 4. Turn on the control panel.
Chapter 3. – Unit Operation Control Panel Interface Control Panel Interface ■Indicator (Green) ■Function Button ■ Heating / Domestic Hot Water(DHW) Temperature Setting Button ■Display Screen ■Dial Button / Enter ■Power ON / OFF Button For turning the Combi Boiler on/off. Buttons ■Timer Button Functionality Press (under 5 seconds) Press and Hold (more than 5 seconds) Power ON / OFF Button Control Panel Power ON/OFF N/A Function Button Cancel / Return Status display mode at power ON mode.
Chapter 3. – Unit Operation Control Panel LCD Interface Control Panel LCD Interface LCD has a backlight that will illuminate: • When a user action is detected (a button is pressed). • Turns off when no action within approximately 20 seconds.
Chapter 3. – Unit Operation How to use Control Panel- User Mode 1. Clock Setting · Time, Day, Month, Year, Days of the Week setting. Blinking( ) - is not an Error Code. Refer to page 21. Press the ‘Power Button’ ON. Press and hold ‘Timer Button’ for 5 seconds. 1.‘Year’ Setting [For Example] Year: 2016 Set the ‘Year’ by turning the ‘Dial Button’. (Only the blinking number can be changed.) Press the ‘Dial Button’ to save the setting. 2.
Chapter 3. – Unit Operation How to use Control Panel- User Mode 3. ‘Day’ Setting [For Example] Day: 25th Set the ‘day’ by turning the ‘Dial Button’. (Only the blinking number can be changed.) Press the ‘Dial Button’ to save the setting. 4. ‘Hour’ Setting [For Example] Hour: 10 Set the ‘hour’ by turning the ‘Dial Button’. (Only the blinking number can be changed.) Press the ‘Dial Button’ to save the setting. 5.
Chapter 3. – Unit Operation How to use Control Panel- User Mode 2. Setting Domestic Hot Water Temperature (DHW) The operation of the high temperature Domestic Hot Water can be set separately. General temperature range °F 90 ℃ 32 High temperature range 120 Default Factory Default 49 121 140 49.5 60 The temperature settings below are examples. The temperature setting necessary depends on the usage, the length of piping and the time of year.
Chapter 3. – Unit Operation How to use Control Panel- User Mode 3. DHW Preheat Activated Setting The operation of the DHW preheat activated setting can be set separately. 1. Press the ‘Power Button’ OFF. The control panel must be off. 18 2. Press and hold the ‘Function Button’ for 5 seconds to enter ‘Installer Mode’. 3. Turn the ‘Dial Button’ clockwise until 9:PH is displayed. Then press the ‘Dial Button’ so ‘oFF’ is blinking. 4.
Chapter 3. – Unit Operation How to use Control Panel- User Mode 4. DHW Preheat Timer Setting 1. Press the ‘Power Button’ ON. 3. Press the ‘Timer Button’ again so today’s day [For Example: Sunday] is blinking. Then turn the ‘Dial Button’ clockwise or counter-clockwise until the ‘the desired day’ is displayed. 2. Press the ‘Timer Button’. 4. Press the ‘Timer Button’ to save the Day. 5.
Chapter 3. – Unit Operation 6. Press the ‘Function Button’ to return to ‘Day’. Repeat steps 3-5 for each day of the week. How to use Control Panel- User Mode 7. After completing all settings, press the ‘Function Button’ three times to return to normal mode. [For Example] Today is Sunday DHW Preheat is scheduled to run Sunday 9:00am~11:00am and 6:00pm~8:00pm.
Chapter 3. – Unit Operation How to use Control Panel- User Mode 5. Setting Heating Temperature • • • • • Blinking ( ) on the control panel is not an Error Code. The unit has the ‘Outdoor Reset (Energy Saving)’ feature, but this feature is disabled(Factory Default). To enable, contact your installer or Noritz America Technical Support at 866-766-7489. ( ) is lit on the control panel, the Outdoor Reset (Energy Saving) is enabled.
Chapter 3. – Unit Operation How to use Control Panel- User Mode ‘User Mode’ Function can be checked and set in ‘User Mode’. ( [A: GA] - [C: TL] - [g:EH] - [H:RH] ) Screen Display Operation Description A: GA/L Gallon or Liter Unit GAL / Lit (Refer to page 25) C: TL Lock Mode Lock mode is used(on) or unused(oFF) g: EH Error History View the Error History (E0:XX ~ E9:XX) Running History PLUg: Plug in time bnH.H: Burn hours (Heating) bnH.d: Burn hours (DHW) bnC.
Chapter 3. – Unit Operation How to use Control Panel- User Mode 6. Lock Mode [C:TL] By locking the control panel, the settings cannot be accidentally changed if a button is pressed by mistake. - Refer to page 22 for directions on how to enter ‘User Mode’. Lock Mode 1. In the ‘User Mode’, turn the ‘Dial Button’ until [C:TL] is displayed. 2. Press the ‘Dial Button’ so ‘oFF’ is blinking. ‘Lock Mode’ Icon 3. Turn the ‘Dial Button’ clockwise so ‘on’ is blinking. 4.
Chapter 3. – Unit Operation How to use Control Panel- User Mode 8. ‘Running History’ [H:RH] - Refer to page 22 for directions on how to enter ‘User Mode’. Screen Display Description Example PLUg Power-on Time EX) 21.3 → 21.3 X 1,000 = 21,300 hour bnH.H Burner Running Hour with Heating Mode EX) 3.2 → 3.2 X 1,000 = 3,200 hour bnH.d Burner Running Hour with DHW Mode EX) 1.3 → 1.3 X 1,000 = 1,300 hour bnC.H Ignition Times with Heating Mode EX) 86 → 86 X 1,000 = 86,000 times bnC.
Chapter 3. – Unit Operation How to use Control Panel - User Mode 9. ‘Unit’ Setting [A:GA] - Refer to page 22 for directions on how to enter ‘User Mode’. Unit Setting Mode 1. After entering ‘User Mode’ the first item displayed will be [A:GA]. 2. Press the ‘Dial Button’ and ‘GAL’ will display on the control panel. 3.Press the ‘Dial Button’ and ‘GAL’ will be blinking. Turn the ‘Dial Button’ counter-clockwise so ‘LIt’ is blinking. * GAL = GPM / °F * LIt = LPM / °C Screen Display Operation 4.
Chapter 3. – Unit Operation Preventing Damage form Freezing 10. Preventing Damage from Freezing-1 CAUTION • Damage can occur from freezing water within the device and pipes even in warm environments. Be sure to read below for appropriate measures. • Repairs for damage caused by freezing are not covered by the warranty. 1. Freeze Prevention • This Combi Boiler has functions to protect itself from freezing by operating the pump and turning on the burner when the thermistor detects lower than 54°F(12°C).
Chapter 3. – Unit Operation Preventing Damage form Freezing If the Combi Boiler will not be used for a long period of time, drain the water. CAUTION • To avoid burns, wait until the equipment cools down before draining the Domestic Hot Water. • The appliance will remain hot for short period after it is turned off. Drain the water into a bucket to prevent water damage. 1. Close the gas valve. 2. (1) Turn the ‘Power Button’ ON.
Chapter 3. – Unit Operation Preventing Damage form Freezing If the Combi Boiler will not be used for a long period of time, drain the water. CAUTION • To avoid burns, wait until the equipment cools down before draining Heating Water. • The appliance will remain heat for short period after it is turned off. Drain the water into a bucket to prevent water damage. 1. Close the gas valve. 2. (1) Close the isolation valves for supply and return heating pipes (2) Turn the ‘Power Button’ OFF. 3.
Chapter 3. – Unit Operation Preventing Damage form Freezing 11. Preventing Damage from Freezing-2 1. Turning the Unit Back On 1. Check that all drain plugs are inserted. 2. Check that all Hot Water fixtures/faucets are closed. 3. Follow the procedure on page 12 ‘Initial operation’, steps 1 through 4. 4. Make sure that the area around the appliance is well ventilated; open a window or a door if necessary. Then, operate the unit and verify that condensate is coming out of the drain pipe.
Chapter 4. – Maintenance Maintaining the Combi Boiler 1. General Maintenance Regular Maintenance - After Combi Boiler installation is completed, the Installation Manual should be placed in near the Combi Boiler. Maintenance instructions should be carried out by the guidelines. Maintenance detail lists, please refer to the instructions below. Monthly Check vent pipe. Check air inlet pipe. Check pressure relief valve. Check condensate drain outlet.
Chapter 4. – Maintenance Maintaining the Combi Boiler 2. Cleaning the Combi Boiler 1. Cleaning Air Intake Filter o properly maintain the Combi Boiler, check air intake filter every month. If not, a problem with combustion combustion T specifications will occur. To clean air intake filter: 1. Press the ‘Power Button’ on the control panel to turn off the Combi Boiler. 2. Disconnect the power supply from the Combi Boiler. 3. If Combi Boiler has been operating, wait for it to cool before continuing 4.
Chapter 4. – Maintenance Maintaining the Combi Boiler - Cleaning Cold water inlet filter / Heating filter 1. Place a bucket under the appliance to collect the residual water inside the Combi Boiler. 2. Press the ‘Power Button’ OFF on the control panel and disconnect the electrical power to the Combi Boiler. And then turn off the gas valve. 3. Close the both DHW inlet and Auto Feeder Inlet water valves and Heating valves. 4. Open the Hot water faucets completely. Use a coin.
Chapter 4. – Maintenance Maintaining the Combi Boiler 3. Flushing the Combi Boiler - Flushing the Combi Boiler Flushing the Heat Exchanger of Combi Boiler is a complicated procedure. Refer to the following instructions carefully before attempting the procedure.If you do not understand the procedure, contact an authorized technician or licensed professional. Keep in mind that improper maintenance will void the warranty. 1. Disconnect electric power to the Combi Boiler. 2.
Chapter 5. – Troubleshooting Checking for Error Conditions 4. Checking for Error Conditions When the Combi Boiler encounters an error, the display will flash ‘Er’ followed by a numerical code. The Combi Boiler shall enter a soft lockout condition if the error is such that it can return to normal operation once the condition relieves itself (overheat conditions, temperature sensor open or shorts, etc.).
Chapter 5. – Troubleshooting Troubleshooting Troubleshooting Problem Possible Remedies Burner Does Not Ignite • Make sure that the ‘Power Button’ on the Control Panel is ON. • If the display on the Control Panel is blank, make sure the power cord is plugged in and 3A fuses on the circuit board in the Combi Boiler are good. Power switch inside Combi Boiler is on. • Make sure that the Combi Boiler is supplied with water. The unit activates when inlet water flow sensor detects flow over 0.
Chapter 6. – Follow-up Service Follow-up Service Follow-up Service Requesting Service First follow the instructions in the troubleshooting section ( page 34 to page 35). If the error is not corrected, contact Noritz America Technical Support at 866-766-7489. We will need to know: The Model .................(check the rating plate) Date of purchase ......(see the warranty) Details of problem ....(blinking error codes, etc.
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Owner's Guide NORITZ AMERICA CO.
