Bryant 374RAN Furnace User Manual
Contents
1. A WARNING FIRE EXPLOSION CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could lead to sooting fire ex plosion and or severe bodily harm For use with grade 2 Fuel Oil maximum Do not use Gaso line Crankcase Oil or any Oil containing Gasoline A CAUTION FIRE AND UNIT OVERHEAT HAZARD Failure to follow this caution may result in unit damage Never burn garbage or paper in the heating system and never leave rags paper or any flammable items around the unit STARTING YOUR FURNACE This appliance is equipped with an ignition device which automatical ly lights the burner each time the thermostat starts your furnace Fol low these important safe guards A WARNING EXPLOSION HAZARD Failure to follow this warning could result in property dam age or personal injury or death This furnace is equipped with a constant type primary igni tion system DO NOT AT TEMPT TO LIGHT WITH A MATCH A DANGER ELECTRICAL SHOCK HAZ ARD HIGH VOLTAGE AT IGNITER Severe electrical shock per sonal injury or death could result e If a suspected malfunction occurs with your oil control system such as the burner not lighting when it should refer to the Shutting Down Your Furnace section and call your dealer as soon as possible CHECK AIR FILTER Before attempting to start your furnace be sure the furnace air filter is clean and in place See Performing Rou tine Mainten2. 2004 Bryant Heating amp Cooling Systems 7310 W Morris St Indpls IN 46231 8 Printed in U S A Catalog No 5337 401 12 04
3. USER S INFORMATION MANUAL MODEL 374RAN OIL FURNACE Heating amp Cooling Systems NOTE TO INSTALLER This manual must be left with the equipment user AN WARNING If the information in this manual is not followed exactly a fire or explosion could result causing property damage personal injury or loss of life E Do not store or use gasoline or other flammable SSS SS vapors and liquids in the vicinity of this or any other appliance S25 co 228 WHAT TO DO IF YOU SMELL OIL SEE o Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building e Immediately call your fuel supplier from a neighbor s phone Follow the fuel supplier s instructions If you cannot reach your fuel supplier call the fire department Installation and service must be performed by a qualified installer service agency or the fuel supplier Do not use this furnace if any part has been under water Immediately call a qualified service techni cian to inspect the furnace and to replace any part of the control system and any oil control which has been under water A WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death Carbon Monoxide is invisible odorless and toxic Bryant recommends a carbon monoxide alarm in your home even if you do not own a gas
4. ance section in this manual Then proceed as follows STEPS FOR STARTING YOUR FURNACE 1 Open all warm air registers and make sure that all return air grills are unobstructed 2 If a humidifier is installed with your system open water supply valve 3 Make sure blower access door is secured in place 4 Set your room thermostat to lowest temperature setting See Fig 5 5 Turn on electric power to furnace See Fig 6 ON Tan 6 6 Open oil supply valve See Fig 7 7 7 Check all connections to ensure there are no leaks 8 Set room thermostat to a tem perature slightly above room temperature This will auto matically signal the furnace to start 9 When the thermostat calls for heat power from the trans former energizes the fan control board The fan control ener gizes the ignition control The ignition control will automati cally light the burner The electronic fan control auto matically turns on the blower The air moved over the heat ex changer by the blower is warmed and passes through the ducts to the room registers This unit is equipped with con tinuous ignition control If the main burner does not ignite within 30 sec from the call for heat the control will lock out The red button on top of the control must be depressed for 3 sec in order to reset the control 5 The control CANNOT be reset from the room thermostat 10 Set you
5. appliance Locate the carbon monoxide alarm in the living area of your home and away from gas appliances and doorways to attached garages Follow the alarm manufacturer s instruction included with the alarm WELCOME TO A NEW GENERATION OF COMFORT Congratulations In light of rising energy costs the 374RAN Variable Speed Multipoise Oil Furnace is among the soundest investments today s homeowner can make U i Wi i Your new furnace is truly a tri umph of technology in home heating A unique silencer within the heat exchanger insulated cab inet and rubber blower mounts make it among the quietest units on the market Variable speed technology creates more comfort able heating and cooling cycles allows you to economically run a constant fan and eliminates tem perature difference throughout the house The combustion chamber is stainless steel for long life and it heats up quickly resulting in enhanced comfort and energy efficiency Grea r o E MODEL 374RAN MULTIPOISE FURNACE new furnace will deliver many years of money saving home comfort and enjoyment Spend just a few minutes with this man ual to learn the operation of your new furnace and the small amount of maintenance it takes to help keep it operating at peak effi ciency year after year ih asa Sees INSTALLATION DATA SPLIT SYSTEM Date Installed OUTDOOR UNIT Dealer Name Product No Addr
6. bility of serious personal injury fire fur nace damage or improper opera tion carefully follow these safety rules FOR YOUR SAFETY Do not store or use gaso line or other flammable vapors and liquids in the vicinity of this or any oth er appliance e Do not cover the furnace store trash or debris near it or in any way block the flow of fresh air to the unit e Combustion air must be clean and not contaminated with chlorine or fluorine These compounds are present in many products around the home such as water softener salts laundry bleaches detergents adhesives paints varnishes paint strippers waxes and plastics Make sure the combustion air for your furnace does not contain any of these compounds During re modeling be sure the combustion air is fresh and uncontaminated If air with vapors of these com pounds is burned in your furnace the heat exchangers and metal vent system may deteriorate NOTE Do not use this furnace if any part has been under water Immediately call a qualified ser vice technician to inspect the fur nace and to replace any part of the control system electrical compo nents and any oil control which has been under water NOTE The qualified installer or agency must use only factory authorized replacement parts kits and accessories when servicing this product The furnace burner control has a safety device which must be man ually reset If the furnace
7. ess Model No City Serial No State Zip INDOOR COIL Telephone ___ Product No FURNACE Model No Product No Serial No Model No ACCESSORIES Serial No Product No Model No Serial No FURNACE COMPONENTS n 7 p lt SEE NOTES 13 14 Left side right side or bottom 1 Variable Speed blower circulates air across the heat exchanger to transfer heat into the home 2 Stainless steel combustion chamber primary heat exchanger 3 Unique silencer system reduces combustion noise 4 Heat exchanger designed and shaped to effi 5 Fully insulated internal walls to minimize heat loss 6 Supply air plenum 7 High limit control to prevent overtemperature operation SS ye ciently transfer heat from furnace into the home A I X Reversible door provides easy access to burner and controls High performance oil burner Adjustable electronic fan control inside with low voltage electrical terminal strip for easy connection of thermostat cooling control elec tronic air cleaner and humidifier Access door to air filters and blower Air filter field supplied Return air plenum IMPORTANT FACTS Your furnace must have adequate airflow for efficient combustion and safe ventilation Do not enclose it in an airtight room or seal it behind solid doors To minimize the possi
8. is left unattended for an extended period of time have it checked periodi cally for proper operation This precaution will prevent problems associated with no heat such as frozen water pipes etc SAFETY CONSIDERATIONS Installing and servicing of heating equipment can be hazardous due to oil and electrical components Only trained and qualified person nel should install repair or service heating equipment Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters All other operations must be performed by trained service personnel Observe safety precautions in this manual on tags and on labels attached to the furnace and other safety precautions that may apply Recognize safety information This is the safety alert symbol A When you see this symbol on the furnace and in instructions or man uals be alert to the potential for personal injury Understand the signal words DANGER WARNING and CAU TION 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 signi fies hazards which could result in personal injury or death CAU TION is used to identify unsafe practices which may result in 4 minor personal injury or product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation
9. pray water through filter in the opposite direction of airflow Allow filter to dry 5 Re install clean air filter 6 Turn on electrical supply to furnace A CHECK UP CHECKLIST Your furnace represents an impor tant investment in your family s comfort and your home s value To keep it performing properly and as a preventative to future problems have a trained service specialist give your furnace a professional check up annually The following checklist can be used as a guideline to proper service e Check flue and secondary tube passage ways including chimney clean if necessary e Change oil filter e Change nozzle e Check and adjust combustion and draft e Inspect all vent piping inside struc ture for deterioration and vent termi nations outside the structure for blockage e Check oil pipes leading to and inside of your furnace for leaks e Inspect and clean the blower motor and wheel e Inspect and change or clean air fil ter if necessary e Inspect all supply and return air ducts for obstructions air leaks and insulation Remedy any problem when necessary e Inspect the return air duct connec tions at the furnace to ensure it is physically sound sealed to the fur nace casing and terminates outside the space containing the furnace e Inspect electrical wiring connec tions and components for loose connections e Examine the physical support of the furnace Support should be so
10. r thermostat to the tem perature that satisfies your com fort requirements SUGGES TION Setting the thermostat back a few degrees and compen sating for the difference with warmer clothing can make a big difference in your fuel consump tion on extremely cold days The few degrees at the top of your thermostat comfort level are the most costly degrees to obtain When room temperature drops below temperature selected on the thermostat the furnace will be switched on automatically When room temperature reaches the degree selected on the ther mostat the furnace will be switched off automatically Some thermostats have a FAN mode with 2 selections AUTO and ON When thermostat is set to AUTO the furnace blower cycles on and off controlled by the thermostat In ON mode the furnace blower runs contin uously This keeps the tempera ture level in your home more evenly balanced It also contin uously filters indoor air SHUTTING DOWN YOUR FURNACE Should you need to shut down your furnace for service or mainte nance you will need to turn the furnace off The following proce dures must be followed 1 Set thermostat to lowest setting See Fig 8 2 Turn off all electrical power to the furnace See Fig 9 gt ON OFF 3 Close oil supply valve See Fig 10 4 If applicable turn off water sup ply to humidifier 5 If furnace blower will be neces sary for cooling sy
11. stem remem ber to turn electric power back on when needed for air condi tioning 6 If furnace is being shut down be cause of a malfunction call your dealer as soon as possible ALWAYS KEEP MAIN OIL VALVE TURNED OFF IF BURNER IS SHUT DOWN FOR AN EXTENDED PERIOD OF TIME PERFORMING ROUTINE MAINTENANCE With proper maintenance and care your furnace will operate economi cally and dependably Instructions for basic maintenance follow How ever before beginning maintenance follow these safety precautions A WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal inju ry or death Turn off all electrical power to furnace before performing any maintenance or service on unit ON OFF 11 A CAUTION CUT HAZARD Failure to follow this caution may result in personal injury Although special care has been taken to minimize sharp edges be extremely careful when handling parts or reaching into the furnace FILTERING OUT TROUBLE Dirty air filters will cause a loss of airflow in your duct system When excessive loss of airflow occurs the furnace may cycle on its safety controls If this condition is left unattended the furnace will even tually lock out It is recommended that furnace air filters be checked every 3 or 4 weeks and cleaned or replaced as necessary A CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in reduced
12. und with no cracks sagging gaps etc around the base e Check furnace for any obvious signs of deterioration BEFORE YOU REQUEST A SERVICE CALL If your furnace 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 FOR INSUFFICIENT AIRFLOW e Check for dirty air filters e Check for blocked return air or supply air grilles throughout your home Ensure they are open and unobstructed If problem still exists call your dealer for service IF FURNACE FAILS TO OPERATE Follow this checklist step by step advancing to the next step only if furnace fails to start e Check thermostat for proper tem perature Is thermostat set above room temperature e Is thermostat set on HEAT e Check fuses and circuit breakers Is electrical supply on e Is valve in oil supply pipe in open position e Is the ignition control on the burn er not in lockout The red button on top of the control must be depressed for 3 sec in order to reset the control Check for obstructions around the vent termination If furnace still fails to operate call your service representative For your convenience record furnace product and serial numbers on page 2 Should you ever require service you will have ready access to the information needed by your service representative bryanti Heating amp Cooling Systems Cancels New OM16 16
13. unit component life Never operate your furnace without the air filters in place Doing so may damage the furnace blower motor An ac cumulation of dust and lint on internal parts of your furnace can cause a loss of efficiency The air filter is installed in an ex ternal filter rack which is provided as standard equipment with furnace To inspect clean and or replace air filter follow these steps 1 Turn off electrical supply to fur nace See Fig 11 2 Remove filter from external fil ter rack 3 Inspect filter If torn replace it NOTE If filter has been replaced with an electronic air cleaner EAC refer to the EAC Owner s Manual for maintenance informa tion 4 If filter is dirty it must be re placed If your furnace air filter needs to be replaced be sure to use the same size and type of fil ter that was originally supplied Use furnace filter table for filter size and filter rack flange dimen sions for return air duct FURNACE AIR FILTER TABLE FLANGE OPENING SIZE SIZE FILTER IN IN TYPE Model Size 105 Disposable FILTER 16X24X1 15 X 23 or 16X25X1 Model Size 120 18 X 30 X 1 19 X 29 or Disposable 20 X 30 X 1 If you have replaced a disposable filter with a permanent washable filter it may be cleaned if it is dirty Wash filter in a sink bathtub or outside with a garden hose Always use cold tap water A mild liquid detergent may be used if necessary S
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