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NOTE:

Read entire instruction manual before starting installation.

This symbol

indicates a change from the last publication.

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock or other conditions which may
cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance.
The qualified installer or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read
these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and National Electrical Code
(NEC) for special requirements.

Recognize safety information. This is the safety-alert symbol

. When you see this symbol on the unit and in instructions 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 serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or
death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage.

INTRODUCTION

Model FK4C Fan Coil units are designed for flexibility and can be used for upflow, horizontal, or downflow applications.

These units are available for application in systems of 18,000 through 60,000 Btuh nominal cooling capacities. (See Fig. 2 and 3.)
Factory-authorized, field-installed electric heater packages are available in 5 through 30 kw. See Product Data for available accessory kits.

WARNING: Before installing or servicing fan coil, always turn off all power to unit. There may be more than 1

disconnect switch. Turn off accessory heater power if applicable. Electrical shock can cause personal injury or death.

Fig. 1—Model FK4C

A95518

Installation and Start-Up Instructions

FK4C

Direct Expansion
Fan Coil
001-006

Form:

IM-FK4C-04

Cancels:

IM-FK4C-03

Printed in U.S.A.

10-97

Catalog No.

63FK-4C0

Содержание FK4C

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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