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Fig. 2—Slope Coil Unit in Horizontal Left Application

A00070

UNIT

FIELD
SUPPLIED
HANGING
STRAPS

LOW VOLT
ENTRY
OPTIONS

POWER
ENTRY OPTIONS

SECONDARY
DRAIN

018-060 21-IN.
070 24-IN.
FRONT SERVICE
CLEARANCE
(FULL FACE
OF UNIT)

SECONDARY
DRAIN

A-COIL
HORIZONTAL LEFT

PRIMARY
DRAIN

PRIMARY
DRAIN

1 3/4 IN.
FILTER ACCESS
CLEARANCE

Fig. 3—Removal of Brackets on Modular Unit

A95293

2 SCREWS

2 SCREWS

REAR CORNER
BRACKET

BLOWER BOX

COIL BOX

2 SCREWS

—3—

Summary of Contents for FA4A

Page 1: ...Data Literature for available accessory kits HEATER PACKAGES This unit may or may not be equipped with an electric heater package Some units have a factory supplied heater package For units not equipped with factory installed heat a factory approved field installed UL listed heater package is available from your equipment supplier See unit rating plate for a list of factory approved heaters Heater...

Page 2: ...ons and reinstall access panels and fitting panel Make sure liquid and suction tube grommets are in place to prevent air leaks and cabinet sweating Install after brazing HORIZONTAL RIGHT CONVERSION OF UNITS WITH A COIL 1 Remove blower and coil access panels See Fig 5 2 Remove metal clip securing fitting panel to condensate pan Remove fitting panel 3 Remove 2 snap in clips securing A coil in unit 4...

Page 3: ... POWER ENTRY OPTIONS SECONDARY DRAIN 018 060 21 IN 070 24 IN FRONT SERVICE CLEARANCE FULL FACE OF UNIT SECONDARY DRAIN A COIL HORIZONTAL LEFT PRIMARY DRAIN PRIMARY DRAIN 1 3 4 IN FILTER ACCESS CLEARANCE Fig 3 Removal of Brackets on Modular Unit A95293 2 SCREWS 2 SCREWS REAR CORNER BRACKET BLOWER BOX COIL BOX 2 SCREWS 3 ...

Page 4: ...ANT CONNECTIONS PRIMARY DRAIN OVERFLOW HOLE DRAINPAN SECONDARY DRAIN Fig 5 Conversion for Horizontal Right Applications Using A Coil A00071 COIL SUPPORT RAIL COIL BRACKET DRAIN PAN SUPPORT BRACKET COIL SUPPORT RAIL COIL BRACKET HORIZONTAL DRAIN PAN PRIMARY DRAIN HORIZONTAL RIGHT SECONDARY DRAIN HORIZONTAL RIGHT REFRIGERANT CONNECTIONS AIR SEAL ASSEMBLY A B C HORIZONTAL RIGHT APPLICATION 4 ...

Page 5: ... be insulated and covered with vapor barrier Units equipped with 20 30kw electric heaters require a 1 in clearance to combustible materials for the first 36 in of supply duct Fan coil size 024 with 15kw smart heat also requires 1 in clearance to combustible materials for the first 36 in of supply duct A Ductwork Acoustical Treatment Metal duct systems that do not have a 90 elbow and 10 ft of main ...

Page 6: ... required only on those FA4A applications which do not use electric heat For units without electric heat 1 Connect 208 230v power leads from field disconnect to yellow and black stripped leads 2 Connect ground wire to unit ground lug 3 If unit contains an electric heater remove and discard power plug if equipped from fan coil and connect male plug from heater to female plug from unit wiring harnes...

Page 7: ...stages are desired cut the W2 wire nut off and discard Strip W2 W3 and E and reconnect per thermostat kit instructions See Fig 12 NOTE When 3 stages are used or anytime the E terminal is not tied to W2 the emergency heat relay part of outdoor thermostat kit KHAOT0201SEC must be used Fig 10 Wiring Layout Heat Pump Unit Cooling and 2 Stage Heat with No Outdoor Thermostat A94060 R G C E L O Y THERMOS...

Page 8: ...th or without electric heaters require a minimum CFM Refer to the unit wiring label to ensure that the fan speed selected is not lower than the minimum fan speed indicated Fan speed selection is done at the fan relay on the printed circuit board To change motor speeds disconnect the fan lead used on the relay terminal SPT and replace with the motor speed tap desired See Fig 14 Save the insulating ...

Page 9: ...oor unit rating plate to see if it matches required piston shown on outdoor unit rating plate If it does not match replace indoor piston with piston shipped with outdoor unit The piston shipped with outdoor unit is correct for any approved indoor coil combination See Fig 15 When changing piston use a back up wrench Hand tighten hex nut then tighten with wrench 1 2 turn Do not exceed 30 ft lbs PROC...

Page 10: ...sformer Consult electronic air cleaner literature for kit requirements B Humidifier Connect humidifier and humidistat to the fan coil unit as shown in Fig 20 and Fig 21 The cooling lockout relay is optional See Fig 22 PROCEDURE 8 SEQUENCE OF OPERATION A Continuous Fan Thermostat closes R to G G energizes fan relay on PCB which completes circuit to indoor blower motor When G is de energized there i...

Page 11: ...ce and the availability of a maintenance contract The ability to properly perform maintenance on this equipment requires certain mechanical skills and tools If you do not possess these contact your dealer for maintenance The only consumer service recommended or required is filter replacement or cleaning on a monthly basis Fig 16 Recommended Condensate Trap A95321 2 1 4 2 1 4 UNIT Fig 17 Insufficie...

Page 12: ...of Humidifier to Fan Coil with Electric Heat A95295 R G W Y THERMOSTAT R G W2 W3 E C FAN COIL CONTROL C Y AIR COND HUMIDISTAT FAN HUMIDIFIER 115V RED GRY WHT WHT BLU VIO BRN M Fig 22 Latent Capacity Control A95296 COM G FAN RELAY DEHUMIDISTAT OPENS ON RISE SPDT 24VAC COIL 230VAC 15A TO HIGH SPEED MOTOR TO LOW SPEED MOTOR CES0130003 C 2000 CAC BDP P O Box 70 Indianapolis IN 46206 imfa4a10 12 Book T...

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