B Series Electric Furnace (30042478B).indd
Contents
1. 8 AWG emmm 5 Season Select Continuous B Ventilation 2 24 KW 208 VAC Y R S phase WIRING COLOR CODE B BLACK pees nj BL BLUE Pr 240 V 60 Hz ORANGE Sec 24 V 60 Hz 40 VA RED WHITE YELLOW For the use of a two stage thermostat or The wiring diagram for 27 KW model an outdoor thermostat connect between is the same as the one for 24 KW model W1 and W2 except for the motor illustrated at left Make sure that the Season Select switch is set to Mild position FE0048A 11 9 Service Parts REPLACEMENT PARTS AND REPAIRS IN ORDER TO ENSURE YOUR UNIT REMAINS IN GOOD FLOO18 WORKING CONDITION YOU MUST USE BRoAN NUTONE GENUINE REPLACEMENT PARTS ONLY THE Broan NUTONE GENUINE REPLACEMENT PARTS ARE SPECIALLY DESIGNED FOR EACH UNIT AND REPLACEMENT PARTS ARE MANUFACTURED TO COMPLY WITH ALL THE TIME DELAY RELAYS SEQUENCERS APPLICABLE CERTIFICATION STANDARDS sEcow MAINTAIN A HIGH STANDARD OF SAFETY ANY KEY NO PART NO BOTTOM SECOND THIRD PARTY REPLACEMENT PART USED MAY CAUSE 30270025 Bs SERIOUS DAMAGE AND DRASTICALLY REDUCE THE PERFORMANCE LEVEL OF YOUR UNIT WHICH WILL B10 RESULT IN PREMATURE FAILING ALSO BROAN NUT ONE 10940925 15 20 RECOMMENDS TO CONTACT A CERTIFIED SERVICE 10940926 25 7 DEPOT FOR ALL REPLACEMENT PARTS AND REPAIRS KEY NO KEY NO 2 240 V Fan Relay not in2. OUT HOH GREE FOR FAN WIRING COLOR CODE LR rower our B BLACK CALL FOR BL BLUE HW Hear ORANGE CALL FOR R RED LO w WHITE TB Y YELLOW 4 1 4s er R R Continuous p Season Select sH 2 Ventilation B Single phase For the use of a two stage thermostat or an outdoor thermostat connect 1 Class 2 Transformer between wi and We Pri 240 V GO Hz Make sure that the Season Select E Switch is set to Mild position Y Sec 24 V 60 Hz 40 VA FE0046A 8 Wirinc DiaGRAMS conT p A WARNING Risk of electric shock Disconnect power before installation servicing maintenance or field wiring Replace all panels before operating Failure to do so can result in electric shock causing severe injuries or death 21B27M Model 24 VAC COMMON OUT CALL FOR FAN POWER OUT HEAT INDICATOR 24 VAC Open 93 3 C Cb m am lt lt ex als alg mao ive HEAT 6 ARTP E ARTP E HEAT 4 ARTP E R E AA A a HEAT 3 ARTP E For the use of a two stage thermostat or an outdoor thermostat connect between W1 and W2 Make sure that the Season Select switch is set to Mild position FE0047A CALL FOR HEAT 1 CALL FOR HEAT2 10 Season Select Continuous 27 KW 240 VAC Single phase Class 2 Transfo
3. duct can be attached to either side rear or the bottom of the furnace For side return there are four 172 38 mm knockouts which can be removed and used as an outline for cutting a 18 x 18 457 mm x 457 mm return air opening in the furnace left or right side Mount the filter frame to the furnace over the opening with the open side of the frame facing front Then attach the 19 x 19 483 mm x 483 mm air duct to the flanges on the filter frame For bottom mounting remove the screws holding the bottom plate to the furnace discard the bottom plate and attach the filter frame to the bottom flanges with the open side of the frame facing front 5 2 Evectricac WIRING Power SuPPLY The furnaces are completely factory wired From a separate breaker a two wire plus ground supply wire is required for single phase units and a three wire plus ground supply wire for three phase units The ground conductor must be firmly attached to the ground lug in the furnace and the supply wires to the terminal block in the furnace NOTE On single phase furnaces when a FK120 kit is used to supply an air cleaner and or humidifier a third neutral conductor must be brought into the furnace A WARNING For all installations we only recommend appropriate gauge good quality copper wire s However it is the electrician s responsibility to ensure that the wiring and connections are compliant to the latest editions of the Canadian Electrical Code and l
4. furnace we recommend that you use high quality name brand thermostats When applicable local regulation comprises more restrictive installation and or certification requirements the aforementioned requirements prevail on those of this document and the installer agrees to conform to these at his own expenses For your safety do not store or use gasoline or other flammable liquids and vapors in the vicinity of this unit or any other appliance These instructions are intended to be used by qualified personnel who have been trained in installing this type of furnace Installation of this furnace by an unqualified person may lead to equipment damage and or hazardous condition which may lead to bodily harm This furnace is not watertight and is not designed for outdoor installation This furnace shall be installed in such a manner as to protect its electrical components from water Outdoor installation leads to a hazardous electrical condition and to premature furnace failure thus voiding the warranty Do not block the combustion air openings in the furnace Any blockage will result in improper overheat situation and may result in a fire hazard and or cause bodily harm The unit must have an uninterrupted or unbroken electrical ground to minimize personal injury if an electrical fault should occur When performing electrical connection the ground conductor must be firmly attached to the ground lug in the furnace Do not use this furn
5. run only at HIGH MED HIGH and MED LOW speeds 21B27MS must NOT be setup to run continuously at LOW or MED LOW speeds as it will cause overheating conditions This model is certified to run only at HIGH and MED HIGH speeds These speeds can only be run with heater off for cooling ventilation purposes only 121B27MS has built in additional noise absorption components to run quietly during continuous or regular cycle modes SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE 3 OPERATING OPTIONS The furnace is shipped from the factory in a Standard Heating Mode all switches are in the Down position When the thermostat calls for heat the automatic controls will be activated and the furnace turned ON The blower will run at low speed as the furnace heats up and will automatically switch to the pre programmed heating speed when additional elements are activated by the time delay relays The timing of this blower speed change will depend on the size of the furnace 10 kW and 13 5 KW models do not change speed and whether Corp or is selected on the SEASON SELECT switch You may however change from the Standard Heating Mode by using the controls built into your furnace CONTINUOUS VENTILATION SEASON SELECT ON NOT INCLUDED IN MODELS 21B10M AND 83B13 OFF Some homeowners prefer the blower to at low speed to more During spring and fall you may not require full heating ca
6. 21B10M 16 3 24 V Fan Relay 17 4 Transformer 240 V 18 5 Blower Wheel 12 x 8 305 mm x 203 mm 19 for DD12 Blower 20 30274191 10941288 Motor 3 4 HP 240 V for 21B27MS 30274192 Breaker 25 Amps Motor 1 3 HP 240 V for 21B10M Nod 21B15M 21B18M 21B20M 21B25M 30010010 508 mm x 508 mm x 25 mm _ _ 30080025 Motor 1 3 HP 208 V for 83B Series 10941149 Service Blower Assembly DD10 1 3 HP 240 V 10940080 Element Assembly 5000 w 240 V 10941221 Service Blower Assembly for 21B27MS Not illustrated 12 10 MAINTENANCE MOTOR The motor is lubricated for life and needs no oiling FILTERS Size is 20 x 20 x 1 508 mm x 508 mm x 25 mm Should be inspected and replaced when dirty Ordinarily replacement is required twice per heating season and perhaps a third time if continuous blower operation is used NOTE Each element has an automatic reset thermal cut out which is set to open at 160 F 71 C If it opens the element will be de energized until the cut out resets itself In addition to that there are 2 manual reset thermal cut outs that open at 200 93 If any of them open a front panel needs to be removed so the cut out can be manually reset WARNING Cut power supply 240 V or 208 V according to the unit before removing the front panel 11 TRouBLESHOOTING The first step in identifying an operational problem i
7. 21B18M amp 21B20M Models Open 93 3 e 69 BL Critical characteristic 1 If any of the original wire as supplied must be replaced use the same equivalent wire Wiring must comply with applicable codes ordinances and regulations 2 Field wiring must comply with applicable codes ordinances and regulations Use only Class 1 wiring inside furnace compartments HEAT INDICATOR me O Line voltage wiring B UL AWM 1015 1230 600V 105 C VW 1 12 AWG BL v CSA TEW 600V 105 C FT1 12 AWG 24 VAC COMMON OUT Low voltage wiring same ratings as high voltage except 18 AWG CALL FOR FAN MOTOR SPEED COLOR HEAT 2 ites me Continuous B Season Select 4 CALL FOR FAN 24 VAC POWER OUT CALL FOR HEAT 1 9999 1 B MED HIGH BLUE Y 18 20 KW 240 VAC MED LOW YELLOW Single phase k Class 2 Transformer Pri 240 V 60 Hz Sec 24 V 60 Hz 40 VA Heating Element Ventilation lanual Reset Thermal Protector eee HEAT ee BL 4 HEAT INDICATOR a O Low power B High power BL High power 8 AWG emmm 24 VAG Won COMMON
8. GRAMS E ENEAN EEANN ENRE EEE ENNEN Nra E TE 8 11 9 SERVICE FARTS eR ER UR 5 12 oor eL reru Mp E DT E LE EUN 13 11 TROUBLESHOOTING eoim re sedtertertee cel tees See sac eters cate Gace nie coats Race ee 13 12 VARIANT Ys ots e 14 1 DIMENSIONS TOP VIEW 1 E 20 WIRING VALUES a ds 13 35 mm 508 DISCHARGE mm mme FRONT VIEW RIGHT SIDE VIEW REAR VIEW LEFT SIDE VIEW H 20 1 508 ieee mm EJ WIRING KO S FILTER FRAME EITHER SIDE REAR 39 OR BOTTOM 991 mm m lae mma 1 x 12 KO l 38 mm x 38 mm n 2 GENERAL REQUIREMENTS AND SPECIFICATIONS CAUTION This unit must be installed in a dry place in a non corrosive well ventilated environment without excessive dust The ambient temperatue must be over 10 and under 27 If the ambient temperatue is 10 or less the plenum must be insulated on 10 ft linear minimum length 1 LOCATION The furnace should be centrally located to the heating area 2 POSITIONS It can be installed for vertical horizontal or downflow operation When installed horizontally the furnace should be positioned such as the door will not end up being on the top The door should be on the side of the furnace to ensure that the motor bearings are in their desig
9. L CODE CSA C22 1 CANADIAN ELECTRICAL CODE Only the latest issues of the above codes should be used and are available from either The National Fire Protection Agency or Batterymarch Park Quincy MA 02269 The Canadian Standards Association 178 Rexdale Blvd Rexdale Ontario M9W 1R3 TABLE OF CONTENTS 1 UNIV EIN QIN Soc 3 2 GENERAL REQUIREMENTS AND SPECIFICATIONS 4 OPERATING OPTIONS sarerea cect ean eaters suv sates aaa secure LM sant A TEES EE 5 4 che Saree te reece cleat crete recess LM Nc E UM M 5 INSTALEATION NOT BES c dette oec coche sien OS a ERN Sc ees kc Seed ose eee eee ce eas 6 AIR 6 5 2 ELECTRICAL WIRING POWER SUPPLY 6 5 3 CONNECTING AND ADJUSTING THE LOW VOLTAGE THERMOSTAT 6 o6 USE INMOBILE HOME S otercee a EE A AA EE EEE 6 USING OPTIONAL TA 7 1 TWO STAGE OR OUTDOOR THERMOSTAT 7 T2 AM CONDMONING MENTRE TA 7 3 ELECTRONIC AIR CLEANERS AND OR POWERED FURNACE HUMIDIFIERS 7 TA INTERLOCK GONNEC TON E 7 8 WIRING DIA
10. M are certified for L shape and T shape shallow duct installation with model FSB 1 sub base in downflow applications when the supply air ducts pass through the floor of the structure Recommended size of a floor opening 1414 x 14 16 406 mm 362 mm x 362 mm The duct system must be designed so that the external static pressure of the system does not exceed the maximum external static 5 127 mm 13 330 mm pressure of 0 50 W C 125 Pa 6 152 mm 10 254 mm UsiNG OPTIONAL EQUIPMENT 7 1 Two STaGE on OuTDOOR THERMOSTAT The SEASON SELECT switch must be in the position First Stage kW Second Stage kW 10 ee HN These controls can be used on all furnaces except 10 kW model Follow the directions supplied with the two stage or outdoor thermostat in conjunction with the furnace wiring diagram When used the furnace stage will supply heat as follows in the opposite chart 7 2 Air CONDITIONING THERMOSTAT Your furnace is equipped with all the controls required for the addition of air conditioning except the heat cool thermostat The evaporator coil may be installed by a local contractor in sheet metal plenum of his own manufacture The coil should be located centred over the chimney of the furnace 4 102 mm to 6 152 mm above the top of the furnace Make sure no air is allowed to bypass the cooling coil during cooling operation If the discharge opening is a great deal larger th
11. NORI RON BRAAN INSTALLATION AND USER MANUAL B SERIES ELECTRIC FURNACE N C4 a Y 2 N Que AU 21B10M 21B15M 21B18M 21B20M 21B25M 21B27M 83B13 83B24 83B27 IMPORTANT READ AND SAVE THESE INSTRUCTIONS Broan NuTone Canada Inc Mississauga Ontario www broan ca 877 896 1119 ov 30042478 A WARNING Never tamper with the unit or its controls User MUST contact a specialized contractor when a failure occurs DO NOT ATTEMPT to repair When using a humidifier make sure not to damage the heating element bank We recommend that your unit be inspected by a specialized technician once a year Poor maintenance of air filters OR an unbalanced static pressure may result in a performance decrease Always use genuine parts for maintenance or service call The use of unbranded parts will void the warranty The use of this unit without an air distribution duct will void the warranty It is strictly forbidden to use jumpers to simulate heat demand Risk of electrical shock Disconnect power before installation servicing maintenance or field wiring Replace all panels before operating Failure to do so can result in electrical shock causing severe injuries or death When performing installation servicing or cleaning the unit it is recommended to wear safety glasses and gloves To assure a proper performance of your
12. PAIR OR REPLACE AT BROAN NUTONE SOPTION SHALLBETHE PURCHASER S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY BROAN NUTONE SHALL NOT BE LIABLE FOR INCIDENTAL CONSEQUENTIAL OR SPECIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH PRODUCT USE OR PERFORMANCE Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from province to another This warranty supersedes all prior warranties and applies only in Canada territorial limits To qualify for warranty service you must a notify Broan NuTone at the address or telephone number stated below b give the model number and part identification and c describe the nature of any defect in the product or part At the time of requesting warranty service you must present evidence of the original purchase date Broan NuTone Canada 1140 Tristar Drive Mississauga ON L5T 1H9 www broan ca 877 896 1119 RS 14
13. ace as a construction heater Use of this furnaceasaconstruction heater exposes the furnace to abnormal conditions contaminated combustion air and the lack of air filters Failure to follow this warning can lead to premature furnace failure and or vent failure which could result in a fire hazard and or bodily harm The owner and or the user is responsible of the following Always maintain the immediate surrounding of the furnace free from combustible and highly flammables materials The furnace ambient air should not have an excessive dust concentration and humidity Never operate this central heating appliance without an air filter Before performing any service functions unless operations specifically require the power to be on make sure all utilities are turned OFF upstream of the appliance Failure to comply with this warning will cause a fire hazard and or bodily harm All questions regarding the operation maintenance or warranty of this unit should be addressed to the company where this product has been sold from CAUTION Never burn garbage or paper in the heating system and never leave rags or paper around the unit Return air grilles and warm air registers must not be obstructed IMPORTANT All local and national code requirements governing the electrical installation heating equipment wiring and flue connections must be followed Some of the codes that may be applicable are ANSI NFPA 70 NATIONAL ELECTRICA
14. al consumer purchaser of Notron products that such products will be free from defects in materials or workmanship for a period of sixty 60 months from the date of original purchase THERE ARE NO OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE During this sixty month period Broan NuTone will at its option repair or replace without charge any product or part which is found to be defective under normal use and service This product or part should be shipped prepaid by the customer to the company factory or the nearest authorized service center THIS WARRANTY DOES NOT EXTEND TO FILTERS FURNACE KITS SOLD SEPARATELY DUCTS AND ACCESSORIES FOR DUCTING This warranty does not cover a normal maintenance and service or b any products or parts which have been subject to misuse negligence accident improper maintenance or repair other than by Broan NuTone faulty installation or installation contrary to recommended installation instructions Broan NuTone does not accept any responsibility fortransportation of repaired part or replaced product mentioned above and for reinstallation costs The duration of any implied warranty is limited to the sixty month period as specified for the express warranty Some jurisdictions do not allow limitation on how long an implied warranty lasts so the above limitation may not apply to you BROAN NUTONE S OBLIGATIONTO RE
15. all for FAN FE0034A 8 WiRING DIAGRAMS WARNING Risk of electric shock Disconnect power before installation servicing maintenance or field wiring Replace all panels before operating Failure to do so can result in electric shock causing severe injuries or death 21B10M Model Open 93 3 9 9 ARTP E 21B15M Model Ri HEAT INDICATOR BL gt d 24 VAC COMMON OUT _ CALL FOR FAN 24 VAC POWER OUT Continuous 1 Ventilation CALL FOR HEAT 1 CALL FOR HEAT2 6099 TB B 10 KW 240 VAC Y Single phase T Class 2 Transformer Pri 240 V 60 Hz Sec 24 V 60 Hz 40 VA ARTP E HEAT 2 E HEAT 1 B M1 M3 BL S X XO Continuous 1 Ventilation 93 3 gt BL w HEAT INDICATOR B C BL 24 VAC OT COMMON OUT LOF CALL FOR FAN 24 VAC AH POWER OUT d Hore AT BL TB Season Select B Y 15 KW 240 VAC Single phase T Class 2 Transfo
16. an the coil and the ductwork is correspondingly larger than the coil you may want to use a bypass damper for heating The damper would be closed in summer directing all air flow through the coil In winter the damper would be open to allow air to bypass the coil Typical air conditioning field wiring connections are shown in the FE0001A diagram at right WIRING COLOR CODE c Riw w y WHITE BLUE COMMON GREEN WHITE OPTIONAL YELLOW CONDENSER 7 3 ELEcTRONIC AiR CLEANERS AND oR PowERED Furnace HUMIDIFIERS These units operate at 120 V Your 240 V furnace is designed so that Model FK120 adaptor kit can be mounted inside the furnace to supply the required 120 V Instructions for mounting and wiring are included with the kit FK120 kit is not available for 83B 208 V three phase models 7 4 INTERLOCK CONNECTION When the electric furnace is used in combination with another device as for example a wood burning furnace itis tecommendedto perform External Request Furnace Electric Furnace the connection by referring to the wiring diagram at right The burning for Fan Activation Thermostat System furnace thermostat will then turn automatically on the blower in the electric furnace Also please note that Norton has developped a low speed interlock kit the FIK Furnace Interlock Kit This kit is specially designed to Furnace interlock the furnace operation with a ventilation fan or an HRV unit RI 24 VAC Power Output C
17. ble 24 VAC codes ordinances and regulations Use only BL BL Class 1 wiring inside furnace compartments B BL G CALL FOR FAN zi v G Line voltage wiring Ry Power our UL AWM 1015 1230 600V 105 C VW 1 12 AWG CSA TEW 600V 105 C FT1 12 AWG Ki24V B r EE 1 L It iri 3 1 Locate Fon ow voltage wiring GE same ratings as high voltage except 18 AWG 6 3 5 Continuous 4 2 Ventilation BLK 13 5 KW 208 VAC FAN MOTOR SPEED COLOR Y 3 Phase Triphas T MED HIGH BLUE Class 2 Transformer ri 2 Sec 24 V 60 Hz 40 VA MED LOW YELLOW Zu ion Y R 83B24 Model ARTP 93 3 P w VF LEGEND oo a meom Ww BL HEAT 6 ARTP E HEAT 5 Fan Relay ARTP Auto Reset Thermal Protector MRTP Manual Reset Thermal Protector Terminal Block Transformer Class 2 HF 34 B HEAT INDICATOR 24 VAC Line Supply 208 V 3 Phase COMMON OUT CALL FOR FAN Breaker 24 VAC HR Power CALL FOR ETA HEAT 1 Y BL BL Low power FOR AH HEAT 2 High power BL BL High power
18. ned position In vertical downflow installations use only L or T shaped plenum with no openings or registers directly below furnace 3 INSTALLATION CLEARANCES As shipped from the factory each unit is approved for zero inch clearance If additional clearance is required it will be indicated on the data label attached to the furnace 4 TEMPERATURE RISE Furnaces are shipped to operate at 0 20 W C 50 Pa external static pressure They are certified for operation up to 0 50 W C 125 Pa Check below for temperature rise table on specification chart and if necessary adjust the unit to match 5 SERVICE CLEARANCE Units are serviced from the FRONT Leave at least 24 610 mm clearance in front of the door 240 VOLTS SINGLE PHASE TEMPERATURE RISE 0 20 W C MODEL NO BTHU AMPS INCL MOTOR BLOWER SPEED RPM mew sme N ze 20 a8 fo 12 x 8 21B27MS t 27 92210 116 3 4 36 65 MED HIGH 707 304 mm x 203 mm 208 VOLTS THREE PHASE 254 mm x 203 mm 35 63 MED 960 12 x 8 304 mm x 208 mm BLOWER STATIC PRESSURE SPEED SPEED E INCHES OF WATER COLUMN CFM 756 s 727 Low E CFM e CFM 912 CFM 1216 wen MED HIGH 1640 ri WARNING FACTORY SETTINGS 21B18M 21B20M and 21B25M must NOT be setup to run continuously at LOW speed as it will cause overheating conditions These models are certified to
19. ocal codes 5 3 CONNECTING AND ADJUSTING THE Low VOLTAGE THERMOSTAT Use only class 1 wires inside furnace compartments Attach thermostat wires to the low voltage terminal block located on the inside of the furnace Follow the diagrams supplied with the thermostat As a general guide remember that the R amp W terminals control single stage heating the R amp Y terminals control cooling Single stage cooling uses Y Y2 as first and only stage Two stage cooling uses Y 1 as first stage and Y Y2 as second stage Make sure the thermostat is levelled on the wall and in appropriate location as per instructions supplied with the thermostat CAUTION Before turning the furnace on the heat anticipator in the thermostat must be properly set 6 Because each installation is different an accurate reading of the current draw should be made with an AC meter Set the meter at 2 A range for furnaces through 20 kW and at 4 A range for larger units A Set the anticipator at its highest setting B Disconnect the W1 thermostat wire from the furnace low voltage terminal connections C Connect the AC meter between the W1 terminal on the board and the loose W1 wire D Turn the thermostat up to start the furnace and allow it to run with all elements on for three or four minutes E Read the current draw on the meter and reset the anticipator to match the meter reading Use iN Mosie Homes Models 21B10M 21B15M 21B18M amp 21B20
20. pacity to evenly distribute air in the house In this position the blower will maintain a comfortable temperature In this position approximately run continuously on low and automatically change to the necessary half of the elements are off line and will not be energized when heating speed when heating elements are turned on by the the thermostat calls for heat thermastat Corp All elements are on line and controlled by the thermostat The blower motor will operate in the standard heating mode controlled NOTE If outdoor or two stage thermostat is used switch MUST be in by the thermostat position at all times 4 BREAKERS B Series furnaces are equipped with breakers located on the front panel of the unit These devices protect the heating elements from overcurrent If this situation occurs the breakers will open to cut the power from the heating elements only NOTE The number of breakers varies according to the furnace model 21B10M model has no breakers 21B15M 21B18M 21B20M and 83B13 models have 2 breakers and 21B25M 21B27M 83B24 and 83B27 models have 3 breakers Refer to Section 8 Wiring Diagrams BREAKERS FD0001 A WARNING Breakers do not cut power to entire furnace only to the heating elements Do not use the breakers to turn off the furnace The power to the whole unit can only be cut from the main electrical panel 5 INSTALLATION NorEs 5 1 Air RETURN The
21. rmer Pri 240 V 60 Hz Sec 24 V 60 Hz 40 VA For the use of a two stage thermostat or an outdoor thermostat connect between W1 and W2 Make sure that the Season Select switch is set to Mild position FE0045A Critical characteristic 1 If any of the original wire as supplied must be replaced use the same equivalent wire Wiring must comply with applicable codes ordinances and regulations 2 Field wiring must comply with applicable codes ordinances and regulations Use only Class 1 wiring inside furnace compartments Line voltage wiring UL AWM 1015 1230 600V 105 C VW 1 12 AWG CSA TEW 600V 105 C FT1 12 AWG Low voltage wiring same ratings as high voltage except 18 AWG FAN MOTOR SPEED COLOR MED HIGH MED LOW LOW LEGEND Capacitor Heating Element Time Delay Relay ARTP MRTP Auto Reset Thermal Protector Manual Reset Thermal Protector Fan Motor Terminal Block 4 Transformer Class 2 HEAT Heat L1 L2 240 V Line Supply 2 Neutral Breaker Low power High power High power 8 AWG emm WIRING COLOR CODE BLACK BLUE RED WHITE B BL o ORANGE R Ww Y YELLOW 8 Wirinc DiaGRAMS conT p A WARNING Risk of electric shock Disconnect power before installation servicing maintenance or field wiring Replace all panels before operating Failure to do so can result in electric shock causing severe injuries or death
22. rmer Pri 240 V 60 Hz Sec 24 V 60 Hz 40 VA Critical characteristic 1 If any of the original wire as supplied must be replaced use the same equivalent wire Wiring must comply with applicable codes ordinances and regulations 2 Field wiring must comply with applicable codes ordinances and regulations Use only Class 1 wiring inside furnace compartments Line voltage wiring UL AWM 1015 1230 600V 105 C VW 1 12 AWG CSA TEW 600V 105 FT1 12 AWG Low voltage wiring same ratings as high voltage except 18 AWG FAN MOTOR SPEED COLOR m me vayre mo O p mee Low power High power High power 8 AWG WIRING COLOR CODE B BLACK BL BLUE R RED Ww WHITE Y YELLOW 8 Wirinc DiaGRAMS conT p A WARNING Risk of electric shock Disconnect power before installation servicing maintenance or field wiring Replace all panels before operating Failure to do so can result in electric shock causing severe injuries or death 83B13 Model R B E E Mes EE Critical characteristic B1 1 If any of the original wire as supplied must l pu 50A HEAT INDICATOR be replaced use the same equivalent wire ARP E B Hil gt Wiring must comply with applicable codes R co ordinances and regulations HEAT BL B 2 Field wiring must comply with applica
23. s to determine whether 1 If the furnace will not start the fault is in the furnace or in the thermostat and or its connecting wiring Turnthe thermostatto its highest setting If the light goes on the thermostat has closed so the fault is in the furnace If the light does not go on the thermosat or its connecting wiring is the problem 2 If the furnace will not turn off Turn the thermostat to its lowest setting If the light goes off and the furnace continues to run the thermostat has opened properly and the problem resides in the furnace If the light stays on the fault is in the thermostat or its connecting wiring After the fault area is isolated by use of the diagnostic light a check of the following components can be made more efficiently PROBLEM POSSIBLE DEFECTIVE PARTS OR COMPONENTS 1 The furnace will not turn on Thermostat Circuit breaker or fuse is open CONTINUOUS VENTILATION switch open contact Bottom Sequencer Transformer 2 Motor runs continuously CONTINUOUS VENTILATION switch is not on Orr position Thermostat wires incorrectly attached to the furnace Bottom sequencer the bottom heating element would also remain on 24 V Relay 3 Elements on but motor does not run Motor or capacitor CONTINUOUS VENTILATION switch open contact Bottom sequencer 4 Motor going on and off in short cycles Heat anticipator in thermostat incorrectly set or may be defective or in too long cycles 5 The
24. thermostat must be set much higher or lower The thermostat is not leveled or out of calibration than the desired house temperature 6 Not enough heat One or more defective elements or sequencers SEASON SELECT switch set in position e Safety limits opening because duct obstruction or dirty filters are restricting air flow Defective or incorrect wired two stage or outdoor thermostat Lack of enough cold air returns in house 7 Two stage or outdoor thermostat not operating properly SEASON SELECT switch not set in position 9 Automatic speed change doesn t occur Top sequencer when furnace heats up 240 V relay 10 Thermal cut out opens Airflow is reduced because of blocked ductwork or very dirty filters 11 Breaker on front panel trips Overcurrent on heating element Reset the breaker If problem persists call an electrician To help make this determination the furnace is equipped with a Thermostat ON diagnostic light If the light is ON it indicates the thermostat has closed and is calling for heat the blower should be oprating If the light is OFF the furnace should not be operating unless the CONTINUOUS VENTILATION switch is set to run the motor continuously 13 12 WARRANTY MEA NORI RON BRGAN SIXTY MONTH LIMITED WARRANTY FOR NORTRON PRODUCTS Broan NuTone Canada Broan NuTone warrants to the origin
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