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# 44876D006

Page 15

Limited Warranty

August 1, 1997

This warranty gives you specific legal rights and you may have other rights

which vary from state/province to state/province.

Warrantor:  Armstrong Air Conditioning Inc., 421 Monroe St., Bellevue, OH  44811

Armstrong Air Conditioning Inc. products are available under the following names:  Air Ease, Armstrong Air, American Aire, Concord

Subject to the limitations stated in this warranty, we warrant to the first buyer for use the residential heating, cooling or heat pump unit, when
installed, operated and maintained as required by this warranty, to be free of defects in workmanship or material for a period of 5 years in
residential installations (1 year in non-residential installations) from the time of installation.  We will replace any defective component without
cost or expense to you except for the costs of delivery and labor for removal and replacement of the defective component.

Warranty Begins

The warranty period begins when the installation is complete and the product is ready to operate.  You must be able to verify this date
whenever a warranty claim is made.  Original bill of sale, installer’s invoice or other similar document will suffice.  If the beginning date
cannot be verified, we will consider warranty coverage to begin 6 months after the date the product was shipped from our factory.

Limitations on Implied Warranties

Implied warranties of merchantability or, to the extent applicable, fitness for a particular purpose are limited to 5 years, the same duration
as the basic limited written warranty provided herein.  Some states/provinces do not allow limitations on how long an implied warranty of
merchantability or fitness lasts, so the above limitations or exclusions may not apply to you.

Only Warranty

This written Limited Warranty is the only warranty made by the warrantor;  this warranty is in lieu of and excludes all other warranties,
express or implied.  The warrantor does not authorize any person to provide any other warranty or to assume for it any further obligation in
connection with the warranted product.

What is NOT Covered

1. Cabinets or cabinet pieces.
2. Normal maintenance items such as filters, fan belts, fuses or other consumable items.
3. Damage caused by misuse, failure to maintain properly, accidents or acts of God.
4. External wiring, piping, venting or attachment of accessory products not integral to our product, including without limitation,

humidifier, air cleaner, vent damper, thermostat or other mechanical devices not manufactured by the warrantor.

5. Products that have been operated in a corrosive atmosphere where a concentration of acids, halogenated hydrocarbons or

other corrosive elements causes deterioration to metal surfaces or integral components.  NOTE:  Operation in a corrosive
atmosphere is considered abuse and voids this warranty.

6. Products that have NOT been installed in accordance with our published installation instructions, applicable local, state/

provincial or national codes, ACCA published standards.

7. Products that have NOT been installed by competent, qualified installers.
8. Products that have been moved from their original place of installation.

Warranty on Replacement Components

Any replacement component furnished by us will assume the remaining (unused) portion of the Limited Warranty.

Consequential Damages

The warrantor shall not be responsible for any consequential damages caused by any defect in the product.  Some state/provinces do not
allow the exclusion or limitations of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

NOTE:  After the first year, in the event that a gas or oil heat exchanger is no longer being manufactured by the warrantor, the warrantor
will allow a credit equal to the then current wholesale price of an equivalent heat exchanger towards the purchase of a new Armstrong gas
or oil furnace.

This product must be installed, used and cared for in accordance with the instruction manual.  You are responsible for required periodic
maintenance or service, such as changing or cleaning of air filters and lubrication or cleaning of components.  Failure to properly install,
operate or maintain your unit voids this warranty.

Summary of Contents for EFC08

Page 1: ...LATION 2 SETUP PROCEDURE 6 SEQUENCE OF OPERATION 8 SYSTEM CHECK 9 REPLACEMENT PARTS 10 MAINTENANCE 10 AIRFLOW CONFIGURATIONS 11 WIRING DIAGRAMS 12 WARRANTY 15 44876D006 The information contained in this manual is intended for use by qualified service techni cians familiar with safety procedures and equipped with the proper tools and test in struments Failure to carefully read and follow all instru...

Page 2: ...s are completely factory assembled and all components are performance tested Each unit consists of a blower assembly optional refrigerant coil and controls in an insulated galvanized factory finished enclosure and may also include electric heat as specified Knockouts are provided for electrical power wiring entrance When used on cooling applications excessive sweating may occur when unit is instal...

Page 3: ... the unit Louvers or return air grilles are field supplied Local codes may limit application of sys tems without a ducted return to single story buildings Install louvers in a closet Use the free area of louver or grille to determine the size opening required to provide the free area for metal louvers or grilles If the free area is not known assume a 25 free area for wood or a 75 free area for met...

Page 4: ...equire an oversized drain line to eliminate air trapping Route to the outside or to an appropriate drain Check local codes before connecting drain line to an existing drainage system Insulate drain lines where sweating could cause water damage The removal of cabinet knockouts required for drain connections can be made much easier with the indoor coil assembly removed from the cabinet Install drain...

Page 5: ...T The variable speed motor in the EFV electric furnace contains DC filter capacitors that will cause a surge or inrush of current when power is applied Power is to remain applied to the motor except during servicing Remove AC power before plugging or unplugging the input power to the motor Do not install blower relays that interrupt line voltage to the motor Electrical Wiring Turn off electric pow...

Page 6: ...control board in the blower control box Set the HEAT and COOL CFM taps by moving the board jumpers to the A B C or D positions see Figure 2 based on the information found in the Application Table on page 11 The ADJUST tap on the control board can be used to raise or lower the table CFM s The tap will raise the table CFM by 10 and the tap will lower the table CFM by 12 IMPORTANT When changing the c...

Page 7: ...raight air conditioning system connect the O wire to the 24 volt R wire The motor control board that provides airflow selection also features LED indicators that display operating mode humidity control and airflow CFM In addition thermostat signals for emergency heat EM aux heat W1 reversing valve O compressor stage 1 Y1 compressor stage 2 Y2 and blower G are all indicated by lit LED s on this boa...

Page 8: ... the indoor blower motor come on Units with a second heat sequencer can be connected with the first sequencer to W on the thermostat sub base or connected to a second stage on the sub base Heating heat pump When the thermostat calls for heat the circuits between R and Y and R and G are completed Circuit R Y energizes the contactor starting the outdoor fan motor and the compressor Circuit R and G e...

Page 9: ...t circuit breaker s rotated properly ON up OFF down Are all access panels in place and secure Refer to outdoor unit installation instructions for system start up instructions and refrigerant charging instructions Airflow For proper system operation the airflow through the indoor coil should be between 350 450 CFM per ton of cooling capacity Each electric furnace is shipped config ured to provide t...

Page 10: ...ements motor blower relay control transformer blower wheel indoor coil and sheet metal parts When ordering replacement parts it is necessary to order by part number and include with the order the complete model number and serial number see unit data plate Refer to the parts list for unit component part numbers Owner Record Furnace Model ____________________ Serial _____________________Installation...

Page 11: ... 44876D006 Page 11 AIRFLOW CONFIGURATIONS Left to Right Airflow Right to Left Airflow Upflow Counterflow Horizontal ...

Page 12: ...20V OR 220V 24 C TR 18 RED 18 BLU W2 W1 C G R BLK WHT BLU GRN RED TD H 3 1 2 5 H 18 RED 18 BLU 18 GRN 18 WHT 18 BLK GND BRN WHT BRN CAP L1 L2 OR NEUT WHT IF 120V BLU RED BLK YEL 4 3 2 1 BR 4 6 2 3 1 5 14 BLU MED 14 RED LO 14 BLK HI 14 YEL COM 14 BLK 18 BLU 14 RED 18 BLU 18 GRN 14 BLK 18 BLU 14 YEL 24OV 14 WHT 12OV 14 GRN TO THERMOSTAT BY OTHERS 14 BLK L1 14 YEL L2 1 2 3 4 5 6 6 5 4 3 2 1 TO BLOWER...

Page 13: ... 44876D006 Page 13 Figure 4 Wiring Diagram Variable Speed Blower MTR ...

Page 14: ...Page 14 44876D006 Figure 5 Low Voltage Connections PSC Motor ...

Page 15: ...r to assume for it any further obligation in connection with the warranted product What is NOT Covered 1 Cabinets or cabinet pieces 2 Normal maintenance items such as filters fan belts fuses or other consumable items 3 Damage caused by misuse failure to maintain properly accidents or acts of God 4 External wiring piping venting or attachment of accessory products not integral to our product includ...

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