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INTRODUCTION

Model 40FKA Fan Coil units are designed for flexibility and can
be used for upflow, horizontal, or downflow (kit required and
manufactured and mobile home) applications. A Carrier Thermi-
distat™ Control (TSTATCCPRH01–B) is included with the
40FKA unit. See Back Page for QUICK REFERENCE COM-
FORT HEAT SET-UP INSTRUCTIONS.

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

Before installing or servicing unit, 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.

INSTALLATION

Step 1—Check Equipment

Unpack unit and move to final location. Remove carton taking care
not to damage unit.

Inspect equipment for damage prior to installation. File claim with
shipping company if shipment is damaged or incomplete. Locate
unit rating plate which contains proper installation information.
Check rating plate to be sure unit matches job specifications.

Step 2—Mount Fan Coil

Unit can stand or lie on floor, or hang from ceiling or wall. Allow
space for wiring, piping, and servicing unit.

IMPORTANT:

When unit is installed over a finished ceiling

and/or living area, building codes may require a field-supplied
secondary condensate pan to be installed under the entire unit.
Some localities may allow the alterative of running a separate,

secondary condensate line. Consult local codes for additional
restrictions or precautions.

When installing any fan coil over a finished ceiling and/or living
area, installation of a secondary drain pan under entire unit to
avoid damage to ceiling is recommended.

40FKA Fan Coils can be installed for upflow and horizontal-left
applications as factory shipped. (See Fig. 2, 4 and 8.) Units can be
installed for horizontal-right applications with field modifications.
(See Fig. 5.) Units may be converted for downflow applications
using factory-authorized accessory kit.

NOTE:

To ensure proper drainage for horizontal installations,

unit must be installed so it is within 1/8 in. level of the length and
width of unit.

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
through the coil. (See Fig. 2.)

MODULAR UNITS

The 40FKA Fan Coil in size 006 is a 2-piece modular unit.
Modular construction allows installer to disassemble unit into 2
components, coil box and blower box, for ease of installation. (See
Fig. 3.)

To disassemble unit, remove rear corner brackets by removing 2
screws which secure brackets. (See Fig. 3.) Remove either 2
screws in each front corner of coil box, or 2 screws in blower box.
Do not remove all 4 screws in each corner. (See Fig. 3.) Sections
may now be separated by lifting top section from lower section.

To reassemble, reverse above procedure. Be certain to reinstall all
fasteners when reassembling.

HORIZONTAL INSTALLATIONS

Be sure installation complies with all applicable building codes
that may require installation of a secondary condensate pan.

Fig. 2—Slope Coil in Upflow Application

A00091

A COIL

UNITS

POWER ENTRY

OPTIONS

LOW VOLT
ENTRY
OPTIONS

FIELD MODIFIED
SIDE RETURN
LOCATION FOR
SLOPE COIL
UNITS ONLY

FIELD SUPPLIED
RETURN PLENUM

UPFLOW/DOWNFLOW

SECONDARY DRAIN

UPFLOW/DOWNFLOW

PRIMARY DRAIN

UNIT

003

A

19 In.

A

1

2

1

2

19

FIELD SUPPLIED
SUPPLY DUCT

24-IN. FRONT SERVICE

CLEARANCE

UPFLOW/DOWNFLOW

SECONDARY DRAIN

UPFLOW/DOWNFLOW

PRIMARY DRAIN

002-005 21-IN.
       006

2

Summary of Contents for 40FKA

Page 1: ...sult local building codes and National Electrical Code NEC for special require ments Recognize safety information This is the safety alert symbol When you see this symbol on the unit and in instructions manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING CAUTION and NOTE These words are used with the safety alert symbol DANGER identifies the most seriou...

Page 2: ...on of a secondary drain pan under entire unit to avoid damage to ceiling is recommended 40FKA Fan Coils can be installed for upflow and horizontal left applications as factory shipped See Fig 2 4 and 8 Units can be installed for horizontal right applications with field modifications See Fig 5 Units may be converted for downflow applications using factory authorized accessory kit NOTE To ensure pro...

Page 3: ...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 See Fig 6 b Remove air splitter B from coil seal assembly by remov ing 3 screws See Fig 6 factory shipped inset c Remove filler plate A and install air splitter B in place of filler plate d Install fill...

Page 4: ... panels 3 Recommended method of securing for typical applications a If fan coil is away from wall attach pipe strap to top of fan coil using No 10 self tapping screws Angle strap down Fig 4 Slope Coil in Horizontal Left Application Factory Ready A00096 UNIT FIELD SUPPLIED HANGING STRAPS LOW VOLT ENTRY OPTIONS POWER ENTRY OPTIONS SECONDARY DRAIN 002 005 21 IN 006 24 IN FRONT SERVICE CLEARANCE FULL ...

Page 5: ...nconditioned space must be insulated and covered with vapor barrier DUCTWORK ACOUSTICAL TREATMENT Metal duct systems that do not have a 90 elbow and 10 ft of main duct to first branch takeoff may require internal acoustical insula tion lining As an alternative fibrous ductwork may be used if constructed and installed in accordance with the latest edition of SMACNA construction standard on fibrous ...

Page 6: ...rating plate Be sure that electrical service provided by the utility is sufficient to handle the additional load imposed by this equipment See unit wiring label for proper field high and low voltage wiring Make all electrical connections in accordance with NEC and any local codes or ordinances that may apply Use copper wire only The unit must have a separate branch electric circuit with a field su...

Page 7: ...HEAT STAGE 1 COOL STAGE 1 FAN 24 VAC HOT 24 VAC COMM DEHUMIDIFY HUMIDIFY N A OUTDOOR SENSOR CONNECTION Y Y2 HUMIDIFIER 24 VAC OUTDOOR SENSOR REMOVE J2 JUMPER FOR HEAT STAGING REMOVE J1 JUMPER FOR DEHUMIDIFY MODES Fig 10 40FKA Fan Coil Wiring with 2 Speed Air Conditioner A98233 O W2 W W1 Y1 W2 G R W2 W1 INDOOR CONTROL 40FKA FAN COIL 2 SPEED AIR CONDITIONER Y1 G C Y2 R Y1 C DHUM HUM B S1 S2 Y Y2 R O...

Page 8: ...o prevent damage to thermostatic expansion valve remove sensor bulb from vapor tube while brazing vapor connections Units have sweat suction and liquid tube connections Make suction tube connection first Units have sweat suction and liquid tube connections Make suction tube connection first 1 Cut tubing to correct length 2 Insert tube into sweat connection on unit until it bottoms 3 Braze with Sil...

Page 9: ...of heaters for which airflow also marked is approved For increased comfort select the narrowest kw range matching the heater size for example 0 10 for 10 kw heater This airflow must be greater than the minimum CFM for electric heater application with the size system installed for safe and continuous operation See Table 4 and 5 for airflow delivery and minimum CFM Note that airflow marked is the ai...

Page 10: ...peed factory setting 50 percent cooling mode airflow 2 MED speed move connector to MED 65 percent cooling mode airflow 3 HI speed move connector of HI 100 percent cooling mode airflow See Fig 19 F as indicated LOW VOLTAGE CIRCUIT FUSING AND REFERENCE The low voltage circuit is fused by a board mounted 5 amp automotive fuse placed in series with the transformer SEC2 and the R circuit The C circuit ...

Page 11: ...00 1470 880 1175 680 910 545 725 440 570 875 525 680 1050 610 795 1225 700 910 1400 006 036 042 048 060 1050 1225 1400 1750 840 980 1120 1400 1100 1470 1835 880 1175 1470 745 995 1240 595 795 995 525 745 1050 610 870 1225 700 995 1400 875 1240 1750 NOTE 1 The above airflows result with the AC HP CFM ADJUST select jumper set on NOM 2 Airflow can be adjusted 15 percent or 10 percent by selecting HI ...

Page 12: ...HEATER KW RANGE 0 10 0 15 0 20 0 30 LO NOM HI LO NOM HI LO NOM HI LO NOM HI 005 30 000 975 975 1040 1100 1100 1100 36 000 980 1085 1250 1100 1100 1250 1250 1250 1250 42 000 1140 1270 1460 1140 1270 1460 1250 1270 1460 1500 1500 1500 48 000 1305 1450 1665 1305 1450 1665 1305 1450 1665 1500 1500 1665 006 36 000 1100 1100 1250 1350 1350 1350 42 000 1140 1270 1460 1350 1350 1460 1525 1525 1525 48 000 ...

Page 13: ...e fan coil blower is operating HUMIDIFIER CONNECTIONS The HUM1 and HUM2 terminals are not always energized during blower operation as described under Auxiliary Terminals Section To ensure humidifier will operate properly during Super Comfort Heat mode use HUM output of Thermidistat Control or Comfort Zone II to control humidifier operation Alternatively the 24 vac signal can be sourced from the W ...

Page 14: ... is defective if it will not start Go through the steps described below before replacing control module Easy Select Board or entire motor The control module is available as a replacement part IF MOTOR TURNS SLOWLY 1 Replace panel Motor may appear to run slowly if access panel is removed 2 It is normal operation to run noticeably slower if G terminal is not energized in cooling or heat pump modes I...

Page 15: ... 20 875 0 10 725 0 90 30 90 0 0 0 5 625 TM J2 JUMPER PULL FOR HEAT STAGING 12 PIN CONNECTOR PL 1 PIN 1 PIN 12 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 16 PIN PLUG DEHUMIDIFICATION INPUT 24 VAC HOT AUXILARY HEAT STAGE 1 AUXILIARY HEAT STAGE 2 LOW SPEED COMPRESSOR SINGLE OR HI SPEED COMPRESSOR FAN REVERSING VALVE COMMON J1 JUMPER PULL FOR DEHUMIDIFICATION CONTROL LOW VOLTAGE SCREW TERMINALS Table 7 Wi...

Page 16: ... for maintenance procedures As with any mechanical equipment personal injury can result from sharp metal edges etc therefore care should be taken when removing parts Using the Owner s User Manual furnished in outdoor unit the installing technician should explain system operation to the con sumer with particular emphasis on indoor fan coil operation sounds and filter maintenance Fig 19 40FKA Printe...

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