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CAUTION: For optimum condensate drainage performance in horizontal installations, unit should be leveled along its

length or raised 1/4 in. at the air inlet. The unit should also be pitched forward 1/4 in. to 1/2 in. toward the front condensate
drains.

D.

Horizontal-Right Conversion of Units with Slope Coils

To convert units for horizontal right installations:

1. Remove blower and coil access panels and fitting panel. (See Fig. 7.)

2. Remove screw securing coil assembly to right side casing flange.

3. Remove coil assembly.

4. Lay fan coil on its right side and reinstall coil assembly with condensate pan down. (See Fig. 7.)

5. Attach coil to casing flange using previously removed coil mounting screw.

6. Reinstall access panels and fitting panel, aligning holes with tubing connections and condensate pan connections.

Make sure liquid and suction tube grommets are in place to prevent air leaks and cabinet sweating. Install grommets after brazing.

E.

Horizontal Right Conversion of Units With A-Coil

To convert units for horizontal right installations:

1. Remove blower and coil access panels. (See Fig. 8.)

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. Slide coil and pan assembly out of unit.

5. Remove horizontal drain pan support bracket from coil support rail on left side of unit and reinstall on coil support rail on right side of unit.

6. Convert air-seal assembly for horizontal right.

a. Remove air-seal assembly from coil by removing 4 screws.

b. Remove air splitter (B) from coil seal assembly by removing 3 screws. (See Fig. 8—factory-shipped inset.)

c. Remove filler plate (A) and install air splitter (B) in place of filler plate.

d. Install filler plate (A) as shown in horizontal right application.

e. Remove condensate troughs (C) and install on opposite tube sheets.

f. Install hose onto plastic spout.

7. Install horizontal pan on right side of coil assembly.

Fig. 5—Modular Unit Assembly

A95293

2 SCREWS

2 SCREWS

REAR CORNER
BRACKET

BLOWER BOX

COIL BOX

2 SCREWS

—5—

Summary of Contents for FK4C

Page 1: ...ructions or manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most se...

Page 2: ...LEFT APPLICATIONS FRONT VIEW SHOWN WITH A COIL DETAILS CONNECTION LOCATIONS FOR UPFLOW OR HORIZ APPLICATIONS 3 1 16 4 11 16 10 3 4 9 1 2 LIQUID LINE CONNECTION SUCTION LINE CONNECTION ACCESS PANEL CON...

Page 3: ...P 4 PLACES 1 TYP 2 PLACES 2 7 8 2 3 16 TYP 2 PLACES SECONDARY DRAIN PRIMARY DRAIN 5 16 TYP 1 5 16 3 1 4 1 TYP 2 PLACES SECONDARY DRAIN PRIMARY DRAIN HORIZ RIGHT FIELD CONVERTED 1 5 16 1 11 16 2 1 2 TY...

Page 4: ...and width of unit A Upflow Installation If return air is to be ducted install duct flush with floor Set unit on floor over opening Only use return air opening provided All return air must pass throug...

Page 5: ...rommets after brazing E Horizontal Right Conversion of Units With A Coil To convert units for horizontal right installations 1 Remove blower and coil access panels See Fig 8 2 Remove metal clip securi...

Page 6: ...access and fitting panels aligning holes with tubing connections and condensate pan connections Be sure to reinstall metal clip between fitting panel and vertical condensate pan Fig 6 Slope Coil in Ho...

Page 7: ...tested by UL Standard 181 for Class 1 air ducts PROCEDURE 4 ELECTRICAL CONNECTIONS A Line Voltage Connections Units with 15 and 20 kw heaters are factory wired for dual circuit operation When single...

Page 8: ...to 3 stage operation Connect low voltage leads to thermostat and outdoor unit See Fig 9 and 10 C Intelligent Heat Option Intelligent Heat staging of the electric heat package is possible when the FK4C...

Page 9: ...fault should occur The ground may consist of electrical wire or metal conduit when installed in accordance with existing electrical codes Failure to follow this warning could result in an electrical s...

Page 10: ...tat closes circuit R to W W1 or W2 The fan coil delivers the selected electric heat airflow G Heat Pump Heating Mode Single speed or 2 Speed High 1 Thermostat closes circuits R to G and R to Y Y2 The...

Page 11: ...pan should be installed underneath the entire unit and a secondary condensate line with appropriate trap should be run from the unit into the pan Any condensate in this external condensate pan should...

Page 12: ...AC HP SIZE Select system size installed The factory setting for air conditioner or heat pump size is the largest unit meant for application with the model of fan coil purchased Installer needs to sel...

Page 13: ...gnal is present whenever the G thermostat signal is present heat pump heating cooling and continuous blower modes When the FK4C Fan Coil is installed with an electronic air cleaner use EAC relay kit P...

Page 14: ...and wire in a standard humidistat See Fig 21 E Dehumidify and Super Dehumidify Capabilities This model fan coil is capable of responding to a signal from indoor system control thermostat thermidistat...

Page 15: ...ensate drain each cooling season for cleanliness Clean as necessary An inspection port is provided on all A coil delta plates Remove plastic plug to inspect 3 Inspect blower motor and wheel for cleanl...

Page 16: ...ay to increase your knowledge of the equipment discussed in this manual including Unit Familiarization Maintenance Installation Overview Operating Sequence A large selection of product theory and skil...

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