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NOTE:

Where local codes require thermostat wiring be routed

through conduit or raceways, splices can be made inside the fan
coil unit. All wiring must be NEC Class l and must be separated
from incoming power leads.

A factory-authorized disconnect kit is available for installation of
0- through 10-kw applications. When electric heat packages with
circuit breakers are installed, the circuit breaker can be used as a
disconnect. Transformer is factory wired for 230-v operation. For
208-v applications, disconnect black wire from 230-v terminal on
transformer and connect it to 208-v terminal. (See Fig. 13.)

The secondary circuit of transformer is protected by a 5-amp fuse
mounted on printed-circuit board.

IMPORTANT:

Do not use outdoor thermostat with Intelligent

Heat Staging.

COMFORT OPTIONS-- SUPER COMFORT HEAT AND
SUPER DEHUMIDIFY

Super Comfort Heat and Super Dehumidify options are possible
when the 40FKA Fan Coil is installed with an outdoor temperature
sensor (Super Comfort Heat only) and the factory supplied
Thermidistat™ Control or Comfort Zone II.

Complete the system low-voltage wiring as shown in Fig. 9, 10,
11, or 12.

Fig. 9—40FKA Fan Coil Wiring with 1-Speed Air

Conditioner

A98232

O/W2

Y1/W2

W/W1

INDOOR CONTROL

40FKA

FAN COIL

1-SPEED

AIR CONDITIONER

DHUM

HUM

Y/Y2

HEAT STAGE 2

N/A

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

INDOOR CONTROL

40FKA

FAN COIL

2-SPEED

AIR CONDITIONER

DHUM

HUM

Y/Y2

HEAT STAGE 2

HEAT STAGE 1

COOL STAGE 1

COOL STAGE 2

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. 11—40FKA Fan Coil Wiring with 1-Speed Heat

Pump

A98234

O/W2

W/W1

Y1/W2

INDOOR CONTROL

40FKA

FAN COIL

1-SPEED

HEAT PUMP

DHUM

HUM

Y/Y2

HEAT STAGE 3

HEAT STAGE 2

HEAT/COOL

STAGE 1

RVS COOLING

FAN

24 VAC HOT

24 VAC COMM

DEHUMIDIFY

HUMIDIFY

RVS HEATING

OUTDOOR

SENSOR

CONNECTION

Y/Y2

HUMIDIFIER

(24 VAC)

OUTDOOR

SENSOR

REMOVE J2 JUMPER
FOR HEAT STAGING

REMOVE
J1 JUMPER FOR
DEHUMIDIFY
MODES

Fig. 12—40FKA Fan Coil Wiring with 2-Speed

Puron Heat Pump

A02005

O/W2

W/W1

Y1/W2

INDOOR CONTROL

FAN COIL

2-SPEED

HEAT PUMP

DHUM

HUM

Y/Y2

HEAT/COOL

STAGE 1

HEAT STAGE 3

HEAT/COOL

STAGE 2

RVS COOLING

FAN

24 VAC HOT

24 VAC COMM

DEHUMIDIFY

HUMIDIFY

RVS HEATING

OUTDOOR

SENSOR

CONNECTION

Y/Y2

HUMIDIFIER

(24 VAC)

OUTDOOR

SENSOR

REMOVE J2
JUMPER FOR
HEAT STAGING

REMOVE J1 FOR
DEHUMIDIFY
MODES

Содержание 40FKA

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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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