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Manual Fedders FV95A090

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  • Fedders FV95A090 - page 1

    Installation, Oper ation and M ainte nance HIGH EFFICIENCY TW O ST A GE V ARIABLE SPEED Please read the operating instructions and safety precautions carefully and thoroughly before installing and operating your furnace. Keep this manual in a safe place for future reference. USER’S INSTRUCTION GUIDE INST ALLA TION, OPERA TION AND MAINTENANCE MANU ...

  • Fedders FV95A090 - page 2

    S S C Case 1: Furnace Located In An Case 2: Furnace Located In A Case 3: Furnace Located In A Confined Space, Case 4: Furnace Located In A Confined Space, Sequence of Operation if the Furnace Circulating Air Blower and FIELD SUPPLIED AND INST ALLED T able of Contents AIR CONDITIONING INSPECTION/ACCESS P ANEL Vertical Termination of Combustion Air a ...

  • Fedders FV95A090 - page 3

    INTRODUCTION This 95% efficient gas fired furnace series is CGA / AGA d vent pressure) non-direct or direct vent central forced air fur- nace. It is an upflow , downflow , horizontal left and right fur- nace suitable for residential and light commercial heating applications from 54,000 to 108,000 BTU/Hr . When installed as a direct vent furnace, al ...

  • Fedders FV95A090 - page 4

    DANGER WHA T TO DO IF YOU SMELL GAS: • DO NOT TRY TO LIGHT ANY APPLIANCE • DO NOT TOUCH ANY ELECTRICAL SWITCH; DO NOT USE ANY PHONE IN YOUR BUILDING • IMMEDIA TEL Y CALL YOUR GAS SUPPLIER FROM A N EIGHBOR’S PHONE, OR A CELLULAR PHONE FROM A LOCA TION WELL AW A Y FROM THE BUILDING. FOLLOW THE GAS SUPPLIER’S INSTRUCTIONS. • IF YOU CANNOT ...

  • Fedders FV95A090 - page 5

    CODES: This furnace must be installed: • In accordance with all local codes, bylaws and regulations by those authorities having jurisdiction • In the United States, this furnace must be installed in a ccordance with the current ANSI Z223.1 (NFP A 54) National Fuel Gas Code • In Canada, this furnace must be installed in a ccordance with the cu ...

  • Fedders FV95A090 - page 6

    FURNACE SIZING The maximum hourly heat loss for each heated space shall be calculated in accordance with the procedures described i n Manual J titled, "Load Calculation" published by the Air Conditioning Contractors of America, or by any other method which is suitable for local conditions, provided the results obtained are in substantial ...

  • Fedders FV95A090 - page 7

    Other Considerations: 1. This furnace is not to be used for temporary heating of buildings or structures under construction. 2. If this furnace is to be used with air conditioning and is t o be installed in an area over a finished ceiling or living area, install a field fabricated auxiliary drain pan under the furnace to protect that area from acci ...

  • Fedders FV95A090 - page 8

    G A C G B F E D J L L K 1 DIMENSIONS (Inches) MODEL INPUT WI D T H DEPTH HEIGHT S UP PL Y AB C F x G RETURN SIDE BO T TOM D x E J x K L H 1 V ent outlet 4 ” - Use reducer fittings. 2 T w o return air openin gs required 54,000 72,000 90,000 108,000 54,000 72,000 90,000 108,000 17.5 20.5 20.5 24.5 14 x 22 16 x 19 3/4 2 2 2 2 14 x 22 19 x 19 3/4 14 ...

  • Fedders FV95A090 - page 9

    DUCTWORK Proper airflow is required for the correct operation of this furnace. Insufficient airflow may cause erratic operation, c ould cause the furnace to cycle on the high temperature limit, and may damage the heat exchanger . Excessive airflow may result in an excessively noisy duct system and may result in undesirable consequences such as crea ...

  • Fedders FV95A090 - page 10

    WARNING THERE MUST NOT BE ANY OPENINGS BETWEEN THE BLOWER DIVISION P ANEL AND THE COMBUSTION COMP ARTMENT . THE BLOWER COMP ARTMENT IS UNDER GREA TER SUCTION THEN THE COMBUSTION COMP AR TMENT AND CAN PULL COMBUSTION AIR FROM THE BURNERS AND CAUSE INCOMPLETE COMBUSTION AND ERRA TIC FURNACE OPERA TION. W ARNING THE VENT MUST BE CLAMPED TO THE FURNACE ...

  • Fedders FV95A090 - page 11

    Instructions for Re-orienting Air Inducer T his furnace comes assembled ready for left side or vertical venting. Rotate the inducer 180 degrees to exit the right hand side. 1. Disconnect inducer wire connections. 2. Remove pressure switch hoses. 3. Remove pressure switches. 4. Remove 4 inducer screws 5. Remove inducer . 6. Reverse the bands on the ...

  • Fedders FV95A090 - page 12

    10 C C A B A B A B Upflow Installation The combustion air and exhaust vent may exit through the top, left or right side of the cabinet when viewed in the upflow position. The inducer is installed so that the exhaust vent may exit the top and left sides without requiring rotation. I f exhaust vent exits the top panel, use the two street elbows to ro ...

  • Fedders FV95A090 - page 13

    11 Downflow Installation When the furnace is installed in the downflow position the combustion air and exhaust vent may exit through the left or right side of the cabinet (when viewed in the upflow position.). The inducer is installed so that the left side exits require no rotation. If exhaust vent exits the left-side panel the pipe can be routed s ...

  • Fedders FV95A090 - page 14

    12 C A B A A B B B A C C The furnace must be installed level or sloping towards the front to facilitate proper drainage. IMPORT ANT It is not permissible to use a rear of the furnace as a return. NOTE The furnace must be installed level or sloping towards the front to facilitate proper drainage. IMPORT ANT It is not permissible to use a rear of the ...

  • Fedders FV95A090 - page 15

    WARNING DO NOT ALLOW GAS PIPING TO BE ROUTED THROUGH JOIST SP ACES THA T ARE USED FOR RETURN AIR PUR - POSES. DO NOT USE JOIST SP ACES FOR RETURN AIR PURPOSES IF THE JOIST SP ACE ALREADY CONT AINS PLUMBING ST ACKS, CHIMNEY COMPONENTS, ETC. UNLESS THE PORTION USED FOR RETURN AIR PURPOS- ES CAN BE COMPLETEL Y ISOLA TED FROM PORTIONS WITH OTHER USAGES ...

  • Fedders FV95A090 - page 16

    FIGURE 1 DANGER The following types of installation sites (but not limited to the following) will require OUTDOOR AIR for combustion because of chemical exposures: commercial buildings, buildings with indoor swimming pools, furnaces installed in laundry rooms, furnaces in hobby o r craft rooms, furnaces installed near chemical storage areas. Direct ...

  • Fedders FV95A090 - page 17

    WARNING READ AND FOLLOW ALL INSTRUCTIONS IN THIS SEC- TION. F AILURE TO PROPERL Y VENT THIS FURNACE CAN CAUSE CARBON MONOXIDE POISONING OR AN EXPLO- SION OR FIRE RESUL TING IN PROPERTY DAMAGE, PER- SONAL INJUR Y OR LOSS OF LIFE. Definitions "V ent" and "Chimney" refer to open passageways that convey vent gases from the furnace, ...

  • Fedders FV95A090 - page 18

    Guidelines • V enting may be vertical or horizontal. • • Horizontal piping must slope back towards the furnace at a minimum rate of 1/4” to the foot, so that • Horizontal runs must be supported at least every 3 feet. Horizontal sections must not dip or sag • All vent runs through unconditioned space where freezing might occur should be ...

  • Fedders FV95A090 - page 19

    PROCEDURE: This guide is intended specifically for PVC pipe; however , the general procedure applies to all plastic piping systems. MA TERIALS: PVC Cleaner / Primer and PVC Solvent Cement. After cutting pipe, remove all ragged edges and burrs. This will reduce restriction (pressure drop) throughout the venting and combustion air system. IMPORT ANT ...

  • Fedders FV95A090 - page 20

    PIPE SIZE NUMBER OF 90° ELBOWS MAXIMUM ALLOW ABLE STRAIGHT LENGTH OF EXHAUST OR INT AKE 2 3 2 3 2 3 2 3 01 2 3 4 5 6 S - 24” for Service C - Combustible floor but not carpet or non-ceramic tile NC - Non-combustible floor or use base kit #30476 MODEL 054 072 090 108 ALL DIMENSIONS IN INCES 70 150 65 140 60 130 55 120 50 11 0 45 100 40 90 65 140 6 ...

  • Fedders FV95A090 - page 21

    C oncentric venting terminal kits may be used for this series f urnace. They provide a means of obtaining combustion air a nd exhausting products of combustion utilizing a single penetration through the exterior wall. This can be useful when there is limited wall space available. Kits are available in 2” and 3” sizes. Read the instructions supp ...

  • Fedders FV95A090 - page 22

    If the required clearance to grade or anticipated snow level cannot be obtained with the “straight through” c onfiguration, the exhaust pipe may be “periscoped” up to 2 4” to gain extra height. (Figure 9) In this case, the flue gases may be expelled horizontally . Use the same size pipe as the interior run and count the fittings and lengt ...

  • Fedders FV95A090 - page 23

    COMBUSTION AIR EXHAUST 8” 12” 2” 12” CLEARANCE ABOVE GRADE OR HIGHEST ANTICIP A TED SNOW LEVEL. D E F G H I J K L A B C COMBUSTION AIR EXHAUST 8” 12” 2” 12” CLEARANCE ABOVE GRADE OR HIGHEST ANTICIP A TED SNOW LEVEL. D E F G H I J K L A B C B C TOP VIEW INTERIOR EXTERIOR C D J A B I A B E D C F H A E E D B V ertical Combustion Air T ...

  • Fedders FV95A090 - page 24

    DANGER SOL VENT CEMENTS AND PRIMERS ARE HIGHL Y FLAMMABLE. PROVIDE ADEQUA TE VENTILA TION AND DO NOT ASSEMBLE NEAR HEA T SOURCE OR OPEN FLAME. DO NOT SMOKE. A VOID SKIN OR EYE CONT ACT . OBSERVE ALL CAUTIONS AND WARNINGS PRINTED ON MA TERIAL CONT AINERS. FAILURE TO FOLLOW THESE GUIDELINES MA Y RESUL T IN FIRE, EXPLOSION OR AS-PHYXIA TION CAUSING PE ...

  • Fedders FV95A090 - page 25

    Canadian Installati ons US Installations A = Clearance above grade, ve randa, 12 in (30 cm ) 12 in (30 cm ) porch, deck, or balcony B = Clearance to window or door that 6 in (15 cm) f or appl iances 10,000 4 ft (121 cm ) below or t o side of may be opene d Btuh (3 kW ), 12 in (30 cm ) for opening; 1 ft (30 cm) above opening appliances > 10,000 B ...

  • Fedders FV95A090 - page 26

    Canadian Ins ta ll a tion s US In s ta ll a tion s A = Clearance abov e grade, veranda, 12 in (30 cm) 12 i n ( 30cm ) porch, deck, or balcon y B = Clearance to w indow or door that 6 in (15 cm) for applian ces 10,000 6 in (15 cm ) for applian ces 10,000 may be opened Btuh (3 k W ),12 in (30 cm) for Bt uh (3 kW ), 9 in (23 cm) for appli ances > 1 ...

  • Fedders FV95A090 - page 27

    CONDENSA TE DRAINS The furnace will condense as much as a half pound of water per hour (approximately 2 imperial quarts, 2 1 / 2 U.S. quarts or 2 1 / 4 liters). It is necessary to make provisions for draining the condensate away . The furnace is supplied with a drain trap assembly . See The drain coupling on the inducer will work better if the drai ...

  • Fedders FV95A090 - page 28

    HORIZONT AL FLOW RIGHT CONDENSA TE TRAP CONDENSA TE TRAP HORIZONT AL FLOW LEFT UPFLOW DOWNFLOW CONDENSA TE CONDENSA TE TRAP TRAP FIGURE 11 FIGURE 12 FIGURE 13 FIGURE 14 26 ...

  • Fedders FV95A090 - page 29

    D E A B C CONDENSA TE NEUTRALIZERS Some local codes may require the use of a condensate neu- tralizer . If the furnace condensate is to be routed to a sep- tic system, it may be advisable to use a condensate neutral- izer . Condensate neutralizers such as the Ward Industries 90+ Neutralizer are available through heating supply whole- salers. When c ...

  • Fedders FV95A090 - page 30

    WARNING THIS FURNACE IS F ACTORY EQUIPPED TO BURN NA TURAL GAS ONL Y . CONVERSION TO L.P . GAS REQUIRES SPECIAL KIT No. F AILURE TO USE THE PROPER CONVERSION KIT CAN CAUSE FIRE, EXPLOSION, CARBON MONOXIDE POISONING, PROPERTY DAMAGE, PERSONAL INJUR Y OR LOSS OF LIFE. CAUTION CONVERSION OF THIS FURNACE REQUIRES SPECIALIZED EQUIPMENT . A TRAINED AND Q ...

  • Fedders FV95A090 - page 31

    CONVERSIONS High Altitude In the United States, the modifications for high altitude are based on a 4 percent reduction of input capacity for every the impact of altitude for selected elevations. Ratings shown apply to the highest elevation in range. Consult with local fuel suppliers or authorities to determine local regulations or customs. In Canad ...

  • Fedders FV95A090 - page 32

    For USA HIGH ALTITUDE SPECIFICATIONS Rating Plate *MANIFOLD PRESSURE NATURAL GAS=3.5 INWC **MANIFOLD PRESSURE L.P. GAS=10.5 INWC For- CANADA HIGH ALTITUDE SPECIFICATIONS Rating Plate *MANIFOLD PRESSURE NATURAL GAS=3.5 INWC **MANIFOLD PRESSURE L.P. GAS=10.5 INWC 6 54,000 72,000 108,000 High Fire 3 4 Qty High Fire Low Fire Orifice Qty Low Fire Orific ...

  • Fedders FV95A090 - page 33

    SETTING THE MANIFOLD (Outlet) GAS PRESSURE (F92-1003 36G V alve Pressure Check Kit) The manifold outlet pressure is specified on the rating plate. 1. Shut off the gas upstream of valve and move valve switch to OFF . 2 . Using the 3/32 inch hex wrench that is included in the valve pressure check kit, rotate outlet pressure tap screw one revolution c ...

  • Fedders FV95A090 - page 34

    DANGER THE FURNACE CABINET MUST HA VE AN UNINTERRUPTED GROUND. A GROUND WIRE IS PROVIDED IN THE ELECTRICAL JUNCTION BOX. DO NOT USE GAS PIPING AS A GROUND. F AILING TO GROUND THE FURNACE PROPERL Y CAN RESUL T IN ELECTRIC SHOCK RESUL TING IN PERSONAL INJUR Y OR DEA TH. WARNING THIS FURNACE IS EQUIPPED WITH A BLOWER DOOR SAFETY SWITCH. DO NOT DISABLE ...

  • Fedders FV95A090 - page 35

    THERMOST A T COOLING CON TA C TOR F AN REL AY HEA TING REL AY 24V 115V R G Y W Y G W ISOLA TION REL AY THERMOST A T LOCA TION The thermostat should be located approximately 5 feet above the floor , on an inside wall where there is good natural air circulation, and where the thermostat will be exposed to average room temperatures. Avoid locations wh ...

  • Fedders FV95A090 - page 36

    6. The circulating fan begins 30 seconds after flame is sensed. 7. Furnace continues to run in this state until a call for second stage heat (W1 and W2) after a call for first stage heat will energize the inducer at high speed and the circulator high heat. The second stage pressure switch contacts will close and energize the second stage gas valve ...

  • Fedders FV95A090 - page 37

    meter test dial is: W here: Input is expressed in BTU/Hr . Heating value of the gas is expressed in BTU/ ft 3 T ime means time required for the test dial to indicate 1 ft 3 /sec. I f using a gas meter with SI (metric) units: 1 ft 3 = 0.0283 m 3 1 m 3 = 35.315 ft 3 0.01 m 3 = 0.3531 ft 3 0.5 m 3 = 1.766 ft 3 T ABLE 7: INPUT V ALUES HEA TING V ALUE O ...

  • Fedders FV95A090 - page 38

    Rating Plate Input BTU/hr Rating Plate Input BTU/hr Switch Description Cool Jumper AC Tonnage Rise Heating Jumper 54,000 72,000 90,000 108,000 54,000 72,000 90,000 108,000 DIP Switch Configurations To obtain the correct airflow for the cooling mode, please refer to the table above. Note the position of the delay tap. It is recommended that the heat ...

  • Fedders FV95A090 - page 39

    T C 8 S 1 O D M 70-4 Cool Cool 1 b 1150 1O n 1000 3 a A 2 Off 810 1 Off 650 2.5 B 2 On 1 On 2C 2 On 1 On 1.5 D A B B C D A B C C D 1550 4 1350 1150 3.5 1000 810 3 a 2.5 2 S3 2 1 2 1 2 1 2 1 2 1 2 On Off Off On Off Off On On On On On S3 85-4 All Delay 5 5 Off 6 On 5 On 6 On 5 On T No delay No delay 1 30 30 Off 0 On C B D S4 6O n S 180 30 Off On Mode ...

  • Fedders FV95A090 - page 40

    DO NOT OPERA TE THE FURNACE WITHOUT AN AIR FIL TER. HOLES IN THE EXHAUST PIPING OR FURNACE HEA T EXCHANGER CAN ALLOW TOXIC FUMES TO ENTER THE HOME AND CIRCULA TE THROUGH THE DUCT SYSTEM RESUL TING IN CARBON MONOXIDE POISONING OR DEA TH. IF LEAKS ARE FOUND IN THE FURNACE HEA T EXCHANGER, IT MUST BE REPLACED. A ir Filter The filter should be inspecte ...

  • Fedders FV95A090 - page 41

    DISCONNECT THE ELECTRICAL POWER SUPPL Y TO THE FURNACE BEFORE A TTEMPTING THIS MAINTENANCE PROCEDURE. F AILURE TO DO SO CAN CAUSE E LECTRICAL SHOCK RESUL TING IN PERSONAL INJURY OR L OSS OF LIFE. A ll electrical connections should be examined to ensure that they are tight and corrosion free. Repair any connections that have become loose or corroded ...

  • Fedders FV95A090 - page 42

    ...

  • Fedders FV95A090 - page 43

    L ED FLASH(ES) Green Off 1 Red 2 Red 3 Red 4 Red 5 Red 6 Red 7 Red 8 Red 9 Red 10 Red I Internal controller or Room Air Fan failure. DO NOT operate on heat until Fan failure cleared. Roll-out open. Cycle power to reset. Flame sensed with gas valve de-energized. Pressure switch(es) remains open. Combustion Blower cycles until low pressure switch clo ...

  • Fedders FV95A090 - page 44

    IF A N D CHECK or REP AIR Induced b l o w er does not energize 3 Fl a sh code does not c o me on 1 . Induced blower wiring. 2. Induced blowe r. Induced b l o w er does not energize 3 Fl a s h code does come on 1. Pressure switch stuck closed. 2. Pressure switch is mis-wired or jumpered. I nd uc ed blower is energized 2 Fl a s h code does not come o ...

  • Fedders FV95A090 - page 45

    67$*,1*0,187($1'0,187(67$*,1* E-803(5$70,187(67$*,1*&21752/:,//$8720$7,&$/ /<67$57 D-803(5$70,187(67$*,1*&21752/:,//$8720$7,&$//< 67$57 ? ...

  • Fedders FV95A090 - page 46

    FURNACE COMPONENTS . . . . . . . . . . . . . . . . . .1 REGULA TOR VENT . . . . . . . . . . . . . . . . . . . . . . .1 GENERAL SAFETY RULES . . . . . . . . . . . . . . . . . .1 FURNACE OPERA TION INFORMA TION TO ST ART THE FURNACE . . . . . . . . . . . . . .2 FURNACE SHUTDOWN PROCEDURE . . . . .2 MAINTENANCE REPLACING AIR FIL TER . . . . . . . . . ...

  • Fedders FV95A090 - page 47

    1 FURNACE COMPONENTS REGULA TOR VENT Most natural gas systems and all LP gas systems have a service regulator located near the point where the gas piping enters the building. The propane tank will normally have an additional first stage regulator located at the tank outlet valve. All of these regulators (located outdoors) will have a vent; see Fig. ...

  • Fedders FV95A090 - page 48

    2 WARNING IMPROPER INST ALLA TION, ADJUSTMENT , AL TERA TION, SERVICE OR MAINTENANCE CAN CAUSE PROPER TY DAMAGE, PERSONAL INJURY OR DEA TH FOR ASSIST ANCE OR ADDITIONAL INFORMA TION, CONSUL T A QUALIFIED INST ALLER, SERVICE AGENCY , OR YOUR GAS SUPPLIER. WARNING DEVICES A TT ACHED TO EITHER THE VENT OR COMBUSTION AIR INT AKE FOR THE PURPOSES OF EXC ...

  • Fedders FV95A090 - page 49

    CAUTION THE FURNACE SHOULD BE OPERA TED WITH ALL P ANELS IN PLACE. NEVER OPERA TE THE FURNACE WITH THE BLOWER DOOR REMOVED EXCEPT FOR SER VICE PURPOSES. W ARNING AL WA YS DISCONNECT THE ELECTRICAL SUPPL Y TO THE FURNACE BEFORE REMOVING THE BURNER COMP ARTMENT ACCESS DOOR. 3 M AINTENANCE Lubrication Minimal lubrication is required for your furnace. ...

  • Fedders FV95A090 - page 50

    4 S equence Of Operation 1. Thermostat, responding to cool room, calls for heat. 2. Combustion air blower begins. 3 . After 15 second prepurge, hot surface igniter warms up. 4. After approximately 5 seconds, the gas valve will open, and the burners ignite. 5. Thirty seconds after the burners ignite and flame sense is proven, the main blower starts ...

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