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INSTALLATION
INSTRUCTIONS
Models
EF08B1500A3
EF12F1900A2
EF16J2200A2
EF20N2600A2
With
AMF001NHA
Accessory No Heat Kit
//
Safety Labeling and Signal Words Cov
General Information / Installation ............ 2
Use ONLY factor' listed electric heaters.
Vertical Installations ........................ 2
Horizontal Installations ..................... 3
Condensate Drain .......................... 5
ELECTRIC
Refrigerant Orifice and Lines ................ 5
Electrical Wiring ............................
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_ Installation Instructions Electric Furnace] Figure 1 Dimensions and Clearances 14-3/8 '' (EF08) 17-7/8 '' (EF12) 21-1/2" (EF16) 25-1/8" (EF20) LowVoltage PilotHole CLEARANCES Alternate NO HEATERS LineVoltage All Sides .................................. O" Pilot Hole LineVoltage From Supply Duct .......................... O" 45" (EF08-12) Pilot Hole Recommended Service From Front .......... 20" (Service for blower, filter if installed) 54" (EF16-20) Drain Connections For Horizontal WITH HEATERS
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J Electric Furnace Installation Instructions j Figure 2 Airflow Positions Figure 3 Airflow Positions UPFLOW POSITION DOWNFLOW POSITION HORIZONTAL LEFT POSITION FILLER HEATER ,,=, m BLOWER Coil supop.._ HORIZONTAL RIGHT POSITION Subbase HEA'_R 38-20-19 \, FIL_ER \ / 38-20-19 Drain Pan Installation 1, Position side of coil drain pan into horizontal drain pan trough on deep end of pan. 2. Install the coil support bracket on left or right side of the cabinet. Non-Ducted Return Air Closet Installatio
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Electric Furnace I I Installation Instructions 4 / Horizontal Drain Pan Figure 1 Coil Support Bracket (Right Hand Air_) Horizontal Drain Pan \ (Left Hand Airflow) il Support Bracket Coil Support Bracket Coil Access Panel (Left Hand Airflow) \ Drip Flanges (Left Hand Airflow) Horizontal Drain Pan (Right Hand Airflow) Drip Flanges 38-20-06 (Right Hand Airflow) Filter Installation Figure 5 Horizontal Installation Filters must be field supplied. The blower cabinet is set up for an internal filter or
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I Electric Furnace Installation Instructions 3. Routetotheoutsideortoafloordrain, laundrytrayorwaste Condensate Drain to Waste Line Figure 6 line (sewer). Check local codes before connecting to a 1 sewer line. 4. Insulate drain lines where sweating could cause water Air Gap Above T damage. uid Level Condensate 5. If a gravity drain cannot be used, install a condensate Line pump. Install the pump as close to the indoor section as possible. SpecialNote For DownflowInstallations For downflow instal
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_ Installation Instructions Electric Furnace I The power supply wiring to the unit MUST be provided with over- Electrical Wiring current protection. Governing codes may require this to be fuses ONLY or circuit breakers. For blower cabinets without heaters, a 15 amp circuit may be used. Electrical shock hazard. Line Voltage Connections Turn OFF electric power at fuse box or service Line voltage wiring may be brought into the unit through the top panel before making any electrical connections righ
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I Electric Furnace Installation Instructions Changing Motor Speed Air Flow Check The blower motor comes from the factory wired for medium or For proper system operation, the air flow through the indoor coil high speed. To change the blower speed, disconnect the black should be between 350 and 450 cfm per ton of cooling capacity. wire at the blower motor termina! block and reconnect at the de- The air flow through the unit can be determined by measuring the sired blower speed tap. external static
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_ Installation Instructions Electric Furnace I Airflow Based on no coil, no filter, no electric heat. Deduct heater static shown in heater static table. Deduct filter static shown in filter static table. Deduct coil static, See Coil Specification Sheet. Deduct .10 for Horizontal Drain Pan Kit. Deduct .20 for Downflow Subbase Kit. I :l;[o}:i SP IN, WG. I=1_;[,"! SP IN, WG. SPEED Volts 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 SPEED Volts 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 LOW 230V 1053 1013 965 911 856 761 65
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I Blower Coils Installation Instructions Sequence Of Operation Mode | Thermostat to Con- Control Function trol Board 24 volt State Control J Electric Heat Only Constant Blower G On Fan On. Fan Switch ON) Off Fan Off. Thermostat calls for G&W1 &W2 On Fan On, 1st Stage Of Heat On, then 2nd Stage Of Heat On. Heat Off 2nd thenlst Stage Of Heat Off. 6 sec delay, then Fan Off. Unit With Electric Heat Cooling Only Constant Blower G On Fan On. Fan Switch ON) Off Fan Off. Y&G On Cooling Only Unit Compres
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I Installation Instructions Electric Furnace I POWER SUPPLY: 208/230-1-60 USE COPPER CONDUCTORS ONLY KEY: HIGH VOLT; -- -- -- LOW VOLT LIMIT FAN o, d_ CNTRL [T_ _(_ BRD _J_ _:_ _:_-I FAN Co_--_--y-- oG_ _q ___y_ -R-- I 20 Kw oG _nm I I LID@O011 B_I ;_q >yo ' IOOOG_BK- r- _LBb Jj B Y_ GRD _D G'_D BASE UNiT WITH NO-HEAT KiT AMF001NH INSTALLED *SEE iNSTALLATION MANUAL FOR PROPER HEATING AND COOLING FACTORY PRE-SET SPEED CONNECTIONS FOR YOUR UNIT. AMFK20CH ELECTRIC HEATER r -- R @_ _LMT R LIMIT f R
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J Blower Coils Installation Instructions ReplacementParts Q O Z2 W 14 Y 11 10 BB U ! AA T 38-20-21 38-20-26 442 01 2204 01 1_
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_ Installation Instructions Electric Furnace I ¢o _4 _4 @4 03 04 _ @4 < o< o< < O O O O O O O O KEY PART _ o_ _ _o KEY PART DESCRIPTION NO. DESCRIPTION NUMBER m ,,'T _ _z NO, NUMBER CO 04 c.O O u_° ,,'7 ,,'7 Ill LLI t_l !11 ILl ILl W UJ AA Door, Coil Access 1087718 I 1085914 1 ! 1 1 9 Control, Fan Timer AA 1087719 1 10 Transformer 1082611 1 ! 1 1 AA 1087720 I 1083044 ! 11 Motor, Blower AA 1087721 1 11 1083045 ! 1 AB PANEL, FILL-IN 1087722 I 11 1083046 1 AB 1087723 1 1002801 ! 1 1 12 Mount, Blowe
