Carrier BW9 Owner's Manual
Contents
1. Do not try to light any appliance Do not touch any electric switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Use only your hand to turn the gas control knob Never use tools If the knob will not turn by hand don t try to repair it call a qualified service technician Force or attempted repair may result in a fire or explosion Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water 1 Set the thermostat to lowest setting See Fig 11 2 Turn off all electric power to the appliance See Fig 12 a og oFF 12 13 11 3 This appliance is equipped with an ignition device which automatically lights the burner DO NOT try to light the burner by hand 4 Remove the front jacket panel See Fig 14 or 16 5 Turn the gas control knob clockwise to OFF on BW9 050 075 and 100 models See Fig 17 On BW9 125 150 175 and 200 models turn manual gas control valve to OFF See Fig 15 14 15 TO 9 GAS CONTROL KNOB SHOWN IN ON POSITION 16 17 Model BW9 50 Through 100 Uf _ YP OS cS i 6 Wait five 5 minutes to2. 1 Turn the electrical supply to the boiler to OFF and remove burner access door SIGHT GLASS ON OFF NE D co aa al pal br Apea 2 ose oa FO wiry 25 26 27 Model BW9 125 Through 200 SIGHT GLASS ON OFF 28 29 30 Model BW9 50 Through 100 2 Using the sight glass carefully inspect the burner area including the burner for dirt soot or rust Service and additional maintenance information can be located in the installation instructions CAUTION UNIT OPERATION HAZARD Failure to follow this caution may result in unit or property damage If dirt rust soot or scale accumulations are found call your dealer DO NOT OPERATE YOUR BOILER 3 Inspect the exhaust pipe and combustion air pipe for sags holes or disconnections Use Fig 31 for reference J VENT INTAKE EXHAUST PIPE eae oes ON OFF EXHAUST TEE 32 Z WARNING CARBON MONOXIDE POISONING AND PROPERTY DAMAGE HAZARD A failure to follow this warning could result in property damage pe
3. Multi Zone Piping Typical Multi Zone Piping PRE MIX BURNER SIGHT GLASS iT TEMPERATURE SIGHT GLASS PRESSURE GAUGE GAS VALVE eS al E PRE MIX i LOW WATER CUT OFF O BURNER Ks INTEGRATED 5 BOILER CONTROL y Ni WITH DIAGNOSTICS eee NN COMBUSTION AIR BLOWER COMBUSTION AIR INTAKE gt INTEGRATED BOILER CONTROL WITH DIAGNOSTICS CONTROL PANEL AJ PRESSURE SWITCHES AIR PRESSURE SWITCH EXHAUST TEE WITH DRAIN TRANSFORMER a TUBE BOILER DRAIN FLUE EXHAUSTER EXHAUST TEE WITH DRAIN N Fd SS BOILER DRAIN BW9 050 075 100 BW9 125 150 175 200 Component Location Component Location SAFETY CONSIDERATIONS Installing and servicing heating equipment can be hazardous due to gas and electrical components Only trained and qualified personnel should install repair or service heating equipment Untrained personnel may perform the inspections shown in this Owners Guide All other operations must be performed by trained service personnel Observe safety precautions in this manual on tags and on labels attached to the boiler and
4. A WARNING FIRE OR EXPLOSION HAZARD If the information in this manual is not followed exactly a fire or explosion could result causing property damage personal injury or death Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS e Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building in your Model BW9 e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s H instructions G as F l red If you cannot reach your gas supplier call the fire department Direct Vent Installation and service must be performed by a C n ondensing qualified installer service agency or the gas supplier Water Boiler NOTE TO INSTALLER This manual must be left with the equipment user USER Please read all manuals and retain manuals for future reference USER S INFORMATION MANUAL FOR THE OPERATION AND MAINTENANCE OF YOUR NEW GAS FIRED DIRECT VENT CONDENSING BOILER AWARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death Carbon Monoxide is invisible odorless and toxic We recommend a carbon monoxide alarm in your home even if you do not own a gas appliance Locate the car Do not use this furnace if any part has been un der water A flood damaged furnace is extreme ly danger
5. clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow WHAT TO DO IF YOU SMELL GAS in the instructions above If you don t smell gas go to next step 7 Turn the gas control knob counterclockwise to ON for BW9 050 075 and 100 models See Fig 18 On BW9 125 150 175 and 200 models turn manual gas control valve to ON See Fig 19 5 ON GAS CONTROL KNOB SHOWN OFF IN ON POSITION 18 BW9 50 Through 100 BW9 125 Through 200 8 Replace the front jacket panel 9 Turn on all electric power to the appliance See Fig 20 10 Set thermostat to desired setting 11 If the appliance will not operate follow the instructions TO TURN OFF GAS TO APPLIANCE and call your service technician or gas supplier SHUTTING DOWN YOUR BOILER Once the heating season has ended or should you ever suspect a malfunction in your boiler you will want to turn the boiler off The following procedures must be followed 1 Set the thermostat to lowest setting See Fig 21 2 Turn off all electric power to the appliance See Fig 22 3 Remove the front jacket panel ON GAS CONTROL KNOB SHOWN MODE FAN 0 FF IN ON POSITION BW9 50 Through 100 BW9 125 Through 200 4 Turn the gas control knob clockwise to OFF Do not force See Fig 23 or 24 5 Replace the front jacket panel PERFORMING ROUTINE MAINTENANCE With only routi
6. eration e Consult the installation instructions for additional service and maintenance information If your boiler is not operating or not performing properly you may save the expense of a service call by checking a few things yourself before calling for service BEFORE YOU REQUEST A SERVICE CALL IF YOUR BOILER FAILS TO OPERATE Follow this checklist step by step advancing to the next one only if boiler fails to operate Check thermostat for proper temperature setting e Is electrical power supply to boiler on e Is manual shut off valve in gas supply pipe in open position Follow start up procedures if you open gas line NOTE Turn the electrical power to OFF and remove access doors before continuing with the checklist Control dial on gas valve in ON position Follow start up procedures if you must reset dial to ON If your boiler still fails to operate call your service representative For your convenience record the model and serial numbers of your new boiler on the page provided in these instructions Should you ever require service you will have ready access to the information needed by the service representative 2004 CAC BDP P O Box 70 Indianapolis IN 46206 Form OG BW9A 02 Cancels OG BW9A 01 8 Printed in U S A 11 04 Catalog No 63BW 9A6
7. ler BOILER IDENTIFICATION For your convenience record the product and serial numbers of your new boiler on the form below Should you ever require service you will have ready access to the information needed by the service representative Product No Serial No Date Installed Dealer Name Address City State Zip Telephone Typical boiler and piping arrangements are shown in Fig 3 through 6 Since there are many variations in boiler piping systems your system may not look the same as shown Your dealer is your best resource to explain your particular boiler piping arrangement SERVICE VALVE SYSTEM a SERVICE SUPPLY TO VALVE J SYSTEM 2 oO CIRCULATOR GATE VALVE oS RETURN FROM CIRCULATOR a SYSTEM CAN VENT Y SHUT OFF VALVE _ FEED WATER PURGE DRAIN VALVE PURGE VALVE REDUCED PRESSURE SERVICE BACKFLOW PREVENTER Ne PRESSURE REDUCING VALVE RETURN FROM SYSTEM EXPANSION TANK BW9 050 075 100 BW9 125 150 175 200 Typical Single Zone Piping Typical Single Zone Piping ZONE SERVICE Z VALVE ZONE SERVICE VALVE suppr ZONE VALVE J SUPPLY TO PRESSURE ZONES AF REDUCING VALVE ZONE SERVICE VALVE CIRCULATOR GATE VALVE Sy REDUCED PRESSURE FEED BACKFLOW PREVENTER WATER RETURN FROM J ZONES CAN VENT EXPANSION TANK SHUT OFF VALVE PURGE VALVE oe 25 N ZONE SERVICE VALVE ZONE SERVICE VALVE BW9 050 075 100 BW9 125 150 175 200 Typical
8. line and other flammable liquids or vapors around your boiler 9 10 e DO NOT Cover your boiler in any manner e DO NOT Store anything including trash or debris near your boiler e DO NOT In any way block or restrict airflow around your boiler DO NOT In any way block or restrict airflow to your supply air and return air grills e DO NOT Use your boiler room as a broom closet or a place to store any kind of chemical or cleaner BEFORE STARTING YOUR BOILER Examine the boiler installation to determine that 1 All flue gas carrying areas external to the boiler i e 2 pipe termination or concentric vent are clear and free of obstructions 2 The combustion air and intake pipes are in place slopes back to the boiler and are physically sound without holes sags or evidence of leaks 3 The circulating water piping is physically sound without missing pipe hangars or evidence of water leaks 4 The physical support of the boiler is sound without sagging cracks gaps etc around the base 5 There are no obvious signs of deterioration of the boiler STARTING YOUR BOILER This appliance does not have a pilot It is equipped with an ignition device that automatically lights the burner DO NOT try to light the burner by hand BEFORE OPERATING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS
9. ne maintenance and care you can rely on your new boiler to operate economically for many years Some of the maintenance you may want to do yourself However before performing any service on your boiler please carefully consider the following 1 Turn off electrical power supply to your boiler before removing access door to service or perform maintenance A WARNING ELECTRICAL SHOCK HAZARD A failure to follow this warning could result in personal injury or death Turn off electrical power supply to your boiler before removing the access doors to service or perform maintenance 2 Although special care has been taken to reduce sharp edges to a minimum be extremely careful when handling parts or reaching into boiler COMBUSTION AREA AND VENT SYSTEM Visually inspect the combustion area and vent system before each heating season When dirt soot scale or rust builds up your boiler can lose efficiency and perform improperly Accumulations on the main burners can result in the burners firing out of normal sequence This delayed ignition will create an alarmingly loud sound A CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in unit component damage If your boiler makes an especially loud noise when the main burners light shut down your boiler and call your dealer 6 To inspect the combustion area and vent system you will need a flashlight Then referring to Fig 25 26 27 or Fig 28 29 and 30 proceed as follows
10. other safety precautions that may apply Recognize safety information This is the safety alert symbol Z When you see this symbol on the boiler and in instructions or manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation IMPORTANT FACTS ABOUT YOUR BOILER DO S AND DON TS e DO READ AND UNDERSTAND THIS MANUAL e DO Have your boiler and vent system inspected annually by a qualified service technician e DO Inspect your boiler monthly for water leaks or other obvious signs service may be required e DO Provide adequate airflow to the boiler or efficient combustion and safe ventilation e DO Keep your boiler free and clear of insulation material Some materials may be combustible Examine the boiler area when the boiler is installed or when insulation is added e DO NOT Enclose your boiler in an airtight room Allow for adequate ventilation of the boiler room or combustion air of other appliances e DO NOT Keep combustible materials gaso
11. ous Attempts to use the furnace can bon monoxide alarm in the living area of your home and away from gas appliances and door ways to attached garages Follow the alarm manufacturer s instructions included with the alarm result in fire or explosion A qualified service agency should be contacted to inspect the fur nace and to replace all gas controls control sys tem parts electrical parts that have been wet or the furnace if deemed necessary Congratulations Your new gas fired indoor boiler is an excellent choice and sound investment in home heating comfort Your modern boiler represents the latest in engineering development and is the culmination of many years of experience from one of the most reputable manufac turers of residential hydronic heating systems Not only is your new boiler one of the most energy efficient heating systems you can buy today it is also one of the safest and most dependable With only minimal care your new boiler will continue to deliver money saving home comfort and enjoyment for many years to come Spend just a few minutes with this manual to learn the operation of your new boiler and the small amount of maintenance it takes to help keep it operating at peak efficiency 1 2 Model BW9 50 Through 100 Model BW9 125 Through 200 Gas Fired Direct Vent Gas Fired Direct Vent Condensing Water Boiler Condensing Water Boi
12. rsonal injury or death If holes are found or if the vent pipe is obstructed or is not con nected toxic fumes can escape into your home DO NOT OPERATE YOUR FURNACE Call your dealer for service 4 Turn the electrical supply to the boiler to ON See Fig 32 5 Start your boiler and observe its operation Watch the burner flames to see if they are bright blue See Fig 27 or 30 6 Replace front jacket panel If you observe a suspected malfunction or that the burner flames are not bright blue call your dealer A CHECKUP LIST Your boiler represents an important investment in your family s comfort and your home s value To keep it in tip top shape and prevent future problems have a trained service specialist give your boiler a professional checkup at least once each year The following checklist can be used as a guideline to proper service 33 e Inspect all flue product passages including the burner passages between the section and exhaust and intake pipes e Remove and clean intake air baffle Inspect all combustion and ventilation air passages and openings e Inspect electrical wiring connections and components for loose connections Check gas pipes leading to and inside your boiler for leaks e Clean all drain lines e Perform an operational checkout to determine whether your boiler is working properly and if it requires adjustments e Check all safety controls such as limit switch pressure relief valve etc for proper op
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