Installation & User Manual
Contents
1. Class 2 Transformer Pri 240 V 60 Hz Sec 24 V 60 Hz 40 VA E TB Terminal Block zoves s n Low power High power High power 8 AWG WIRING COLOR CODE BLACK BLUE BROWN GREY ORANGE PINK PURPLE RED WHITE YELLOW For the use of a two stage thermostat or an outdoor thermostat connect between W1 W2 Make sure that the Heat Activation switch is set to Slow position 8 Wirinc DiaGRAMS conT p 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 21D18 amp 21D20 Models Open 93 3 C ww L7 HEAT 4 W ARTP E nol Icom R B oa R R HEAT4 PP GR WAO HEAT 3 ARTP E KC3 NO COM R TW Aea R Fi HEAT 3 SW 5 42 5 AMPS 2 NO KC2 COM Heat Activation W ie cur HEAT 2 24 WH BR pP FUSED 24 VAC 1 POWER OUT ARTP E R m B 2H com CALL FOR FAN HEAT 1 HEAT INDICATOR CALL FOR COOL PP REVERSING VALVE B CALL FOR HEAT 1 Speed Selector R R B2. RLY PWR2 HEATS HEAT6 21D23 amp 21D25 Models VE Open 93 3 C Po ARTP E R B 6 GR 1 Lo HEAT 5 1 GR ARTP E R e BR HEAT 4 _ 5 5 Y 99 9 l Z Power T I I I gt 0 ARTP E Of Ti B 1 2f st af sl 6 7 z F1 n HEAT 3 YW P3 a7 4 5 AMPS HEAT 2 P BOARD POWER SUPPLY NO Heat Activation 24 VAC d 3 C 460MMON our gt FUSED 24 VAC 2 HPOWER OUT GR CALL FOR FAN HEAT INDICATOR PP e CALL FOR COOL R n ARTP E R x T AAA m HEAT 1 B R F R Speed Selector CALI FOR 1 1 P onion vitesse GR CALL FOR HEAT 2 R 9 R R R NC BL R 23 25 KW 240 VAC S HCALL FOR COOL 1 R en Single phase I MED HI Pi Y og S m TEN r4 ac ae S 3 21 gt 33 1 7 8121 F BR B HI BL MED HI B B R Class 2 Transformer meoo j Y MED LO Pri 240 V 60 H B kee Toe Lo Sec 24 V 60 Hz 40 VA 1 E Heating Element ware FAN MOTOR SPEED COLOR BLACK MED HIGH BLUE MED LOW YELLOW LOW RED Critical characteristic 1 If any of the or
3. P2 4 B 9 amp CALL FOR COOL REVERSING VALVE CALL FOR HEAT 1 P2 3 GR CALL FOR HEAT 2 P2 2 27 KW 240 VAC 6 CALL FOR COOL 1 Single phase P24 be Ela g 8 5 81 2 gn ONIS BE E B HI B BL MED HI B 1 T Class 2 Transformer Pri 240 V 60 Hz Sec 24 V 60 Hz 40 VA Y MED LO R LO LEGEND Critical characteristic Heating Element 1 If any of the original wire as supplied must ke Heating Element Relay be replaced use the same equivalent wire a Ik Fan Relay FAN MOTOR SPEED COLOR BLACK MED HIGH BLUE MED LOW YELLOW 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 Low power High power High power 8 AWG C E KC K rwr ig Eee LOW RED WIRING COLOR CODE BLACK BLUE BROWN GREY ORANGE PINK PURPLE RED WHITE YELLOW For the use of a two stage thermostat or an outdoor thermostat connect between W1 and W2 Make sure that the Heat Activation switch is set to Slow position 1 9 Service Parts FL0020 REPLACEMENT PARTS REPLACEMENT PARTS PART NO DESCRIP
4. 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 scsi c HPM 3 2 GENERAL REQUIREMENTS AND SPECIFICATIONS 4 OPERATING OPTIONS sarerea cect ean eaters suv sates aaa secure LM M came sant A TEES EE 5 4 BREAKERS che Saree te reece cleat crete recess LM Nc E UM M 5 INSTALEATION NOT BES c dette ease coche sien OS a Sc ees kc Seed ose eee eee ce eas 6 AIR rm SEDIS NR ERE 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 aan Sean oo tanec pene AA EE 6 USING OPTIONAL TA 7 1 TWO STAGE OR OUTDOOR THERMOSTAT 7 2 AM CONDMONING MENTRE Rn TA 7 3 ELECTRONIC AIR CLEANERS AND OR POWERED FURNACE HUMIDIFIERS 7 INTERLOCK GONNEC TON ET E 7 8 WIRING DIAGRAMS E ENEAN 8 11 9 SERVICE FARTS sirere tnai EAEE AEEA ANE
5. LO CALL FOR HEAT 2 G R Vf Se BL R CALL FOR COOL 1 R MED H i B HI BL MED HI Class 2 Transformer Pri 240 V 60 Hz Sec 24 V 60 Hz 40 VA Y ad LEGEND FE0054A 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 Low power High power High power 8 AWG ARTP Auto Reset Thermal Protector MRTP Manual Reset Thermal Protector Terminal Block Transformer Class 2 FAN MOTOR SPEED COLOR RED WIRING COLOR CODE BLACK BLUE BROWN GREY ORANGE PINK PURPLE RED WHITE YELLOW B BL BR GR o P PP R w Y For the use of a two stage thermostat or an outdoor thermostat connect between W1 and W2 Make sure that the Heat Activation switch is set to Slow position 8 Wirinc DiaGRAMS conT p 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
6. NORI RON BRAAN INSTALLATION AND USER MANUAL D SERIES ELECTRIC FURNACE N CA a S Y 2 N Que AU 21010 21015 21018 21020 21023 21025 21027 IMPORTANT READ AND SAVE THESE INSTRUCTIONS Broan NuTone Canada Inc Mississauga Ontario www broan ca 877 896 1119 ov 30042479 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 furnace we reco
7. RE EREE 5 12 M A 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 mE 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 designed position In vertical downflow installations use only L or T shaped plenum with no openings or registers direc
8. T A CERTIFIED SERVICE DEPOT FOR ALL REPLACEMENT PARTS AND REPAIRS a2 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 240 V power supply before removing the front panel 11 TRouBLESHOOTING The first step in identifying an operational problem is 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 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 Turnthe thermostatto its highest setting If the light goes on the thermostat has closed so the fault is in the furnace If the l
9. TION KEY NO PART NO DESCRIPTION 30270032 Automatic Limit 30274131 Relay K7 30274132 Relay KC1 KC2 KC3 KC4 KC5 30300022 Transformer 240 V and KC6 Motor Capacitor for 21D10 21D15 Blower Wheel 12 x 8 305 mm x 203 mm 30390553 8 30274192 Breaker 25 Amps Fiberglass Filter 20 x 20 x 1 EM 30010010 508 mm x 508 mm x 25 mm Service Blower Assembly for 21D10 10941149 951415 21D18 21D20 21023 21025 10941221 Service Blower Assembly for 21D27 624663 Electronic Control 10941288 Motor 3 4 HP V for 21D27 10940080 Element Assembly 5000 W 240 V 10940081 Element Assembly 4500 W 240 V Daughterboard 21D23 21D25 and 21D27 only 10941382 Service Door D Series FK120 120 Volt Kit optional purchase separately 624664 Motor 1 3 HP for 21D10 21D15 21018 30274191 Breaker 50 Amps 10941203 21D20 21D23 and 21D25 20 Not illustrated REPLACEMENT PARTS AND REPAIRS IN ORDER TO ENSURE YOUR UNIT REMAINS IN GOOD WORKING CONDITION YOU MUST USE BROAN NUTONE GENUINE REPLACEMENT PARTS ONLY THE BROAN NUTONE GENUINE REPLACEMENT PARTS ARE SPECIALLY DESIGNED FOR EACH UNIT AND ARE MANUFACTURED TO COMPLY WITH ALL THE APPLICABLE CERTIFICATION STANDARDS AND MAINTAIN A HIGH STANDARD OF SAFETY ANY THIRD PARTY REPLACEMENT PART USED MAY CAUSE SERIOUS DAMAGE AND DRASTICALLY REDUCE THE PERFORMANCE LEVEL OF YOUR UNIT WHICH WILL RESULT IN PREMATURE FAILING ALSO BROAN NUTONE RECOMMENDS TO CONTAC
10. ce model 21D10 model has no breakers 21D15 21D18 and 21D20 models have 2 breakers and 21D23 21D25 and 21D27 models have 3 breakers Refer to Section 8 Wiring Diagrams HEAT ACTIVATION SLow Fast During spring or fall you may require less rapid response when the thermostat calls for heat When S ow is selected it takes more time to bring all the elements online When Fast is selected the heating elements come online faster Slow First Stage Fast Second Stage Slow Response Sequence Rapid Response Sequence Element 1 Heat on instantly Element 1 Heat on instantly Blower on after a 3 second delay Blower on after a 3 second delay Elements 3 and 5 Elements 3 and 5 after a 1 minute delay after a 10 second delay Element 2 after a 2 minute delay Element 2 after a 20 second delay Element 4 and 6 Element 4 and 6 after a 3 minute delay after a 30 second delay NOTE Elements 4 5 and 6 only where applicable 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 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 ret
11. ch 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 REPAIR 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 produc
12. ic 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 oR OuTDOOR THERMOSTAT The HEAT ACTIVATION switch must be in the Stow position Follow the directions supplied with the two stage or outdoor thermostat in conjunction with the furnace wiring diagram 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 than 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 E COMMON GREEN WHITE LS YELLOW CONDENSER 7 3 ELectronic AiR CLEANERS AND oR PowERED Furnace HUMIDIFIERS These units operate at 120 V You
13. ight does not go on the thermostat or its connecting wiring is the problem 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 Motor or capacitor SPEED SELECTOR switch open contact Electronic control Transformer 2 Motor runs continuously Thermostat wires incorrectly attached to the furnace 3 Elements on but motor does not run Motor or capacitor SPEED SELECTOR switch open contact Electronic control 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 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 relays HEAT ACTIVATION switch set in Low position Safety limits opening because duct obstruction or dirty filters are restricting air flow Defective or incorrect wired two stage or o
14. iginal 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 Fan Motor WIRING COLOR CODE BLACK BLUE BROWN GREY ORANGE PINK Manual Reset Thermal Protector Line voltage wiring UL AWM 1015 1230 600V 105 C VW 1 12 AWG CSA TEW 600V 105 FT1 12 AWG Terminal Block B m re Low voltage wiring same ratings as high voltage except 18 AWG FE0052A Low power High power High power 8 AWG 240 V Line Supply IN Newa 0 eee 1 PURPLE RED WHITE YELLOW For the use of a two stage thermostat or an outdoor thermostat connect between W1 and W2 Make sure that the Heat Activation switch is set to Slow position 10 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 21D27 Model Open 93 3 C fee wv Y F1 5 AMPS Heat Activation FUSED 24 VAC POWER OUT GR HEAT INDICATOR pp P25 e Te
15. ion 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 ELECTRICAL CODE CSA C22 1
16. ly 5 8 7 6 4 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 The blower will run at low speed or higher speed as selected by Speen SELEcToR switch As the furnace heats up it automatically switches to the pre programmed heating speed when additional elements are activated by the electronic control if it was initially set to run at low speed The timing of this blower speed change will depend on whether Fast or Stow is selected on the Heat Activation switch You may however change from the Standard Heating Mode by using the controls built into your furnace SPEED SELECTOR Low The Speep switch is used to control the fan speed ventilation Even if there is no call for heat the ventilation can be controlled by the thermostat the fan speed is determined by this switch Low The blower motor will operate at low speed HIGH The blower motor will operate at a higher speed 4 BREAKERS D 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 furna
17. mmend 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 beentrained 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 furnace as a construct
18. plicable HEAT 1 2 codes ordinances and regulations Use only FUSED 24 VAC iring insi POWER OUT Class 1 wiring inside furnace compartments Line voltage wiring CALL FOR FAN HEAT INDICATOR UL AWM 1015 1230 600V 105 C VW 1 12 AWG CALL FOR COOL CSA TEW 600V 105 C FT1 12 AWG B REVERSING VALVE Low voltage wiring same ratings as high voltage except 18 AWG w CALL FOR HEAT 1 2 9 g P 1 Speed Selector R P a io CALL FOR HEAT 2 5 R R B 1 BL CALL FOR COOL 1 FAN MOTOR SPEED COLOR oe BLACK MED HIGH BLUE MED LOW YELLOW T BL MED HI T B 1 Y MED LO 240 V BR RLO B B LO y c B Y E Heating Element KC Heating Element Relay 21D15 Model E cd ARTP Auto Reset Thermal Protector Open 93 3 C MRTP Manual Reset Thermal Protector B2 w XqQ Gu HEAT 3 ARTP E R HEAT 3 ARTP E NO COM R B He R HEAT 2 FE0051A no 2s B m R 3 oP KC2 P HEAT 1 lo KC1 COM a Speed Selector BL MED HI R LO Fi 5 AMPS nt HEAT INDICATOR PP B 24 VAC COMMON OUT FUSED 24 VAC POWER OUT CALL FOR FAN CALL FOR COOL REVERSING VALVE CALL FOR HEAT 1 CALL FOR HEAT 2 CALL FOR COOL 1
19. r 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 7 4 INTERLOCK CONNECTION When the electric furnace is used in combination with another device asforexample a wood burning furnace itis ecommendedto 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 Furnace IR 24 VAC Power Output Call for FAN FE0034A 8 WiRING DIAGRAMS 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 21D10 Model Open 93 3 C w 2 R Ti B 5 je HEAT 2 1 1 If any of the original wire as supplied must 5 AMPS be replaced use the same equivalent wire HEAT 1 Wiring must comply with applicable codes ARTP E nol com Heat Activation ordinances and regulations R B H Ee B COMMON QUT 2 Field wiring must comply with ap
20. t 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
21. tly 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 MODEL NO BTHU AMPS INCL MOTOR BLOWER SPEED RPM ew fofas aieo a a6 ws 254 mmx 208 mm 12 x 8 21D27 27 92210 116 3 4 36 65 MED HIGH 707 304 mm x 203 mm FACTORY SETTINGS SUBJECT TO CHANGE WITHOUT NOTICE 10 x 8 254 mm x 203 mm BLOWER FLOW SPEED 756 12 8 304 mm x 203 mm BLOWER STATIC PRESSURE SPEED INCHES OF WATER COLUMN os os LOW CFM 727 699 667 636 606 L 343 330 315 300 286 897 L 566 S CFM CFM 912 878 853 823 CFM 1216 1200 1181 1157 1129 HIGH 1640 1601 1558 1513 1466 L s 774 755 735 714 692 03 48 CFM 117 CFM 1301 276 WARNING These speeds can only be run with heater off for cooling ventilation purposes on
22. trol 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 21D10 21D15 21D18 and 21D20 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 stat
23. urn 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 ELEcTRICAL WIRING Power SuPPLY The furnaces are completely factory wired From a separate breaker a two wire plus ground supply wire is required 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 When a FK120 kit is used to supply an air cleaner and or humidifier a third neutral conductor must be brought into the furnace 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 local 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 con
24. utdoor thermostat Lack of enough cold air returns in house 7 Two stage or outdoor thermostat not operating properly HEAT ACTIVATION switch not set in Low position 8 Thermal cut out opens Airflow is reduced because of blocked ductwork or very dirty filters 9 Breaker on front panel trips Overcurrent on heating element Reset the breaker If problem persists call an electrician 13 12 WARRANTY z0 MEA NORI RON BRGAN SIXTY MONTH LIMITED WARRANTY FOR NORTRON PRODUCTS Broan NuTone Canada Broan NuTone warrants to the original 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 whi
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