Cedar Shvac CE2601C10 KW Electric Strip Heater Kit With Circuit Breaker Installation Guide

Cedar Shvac CE2601C10 KW Electric Strip Heater Kit With Circuit Breaker

Product Information

Product Specifications:

• Model: KFCEH Electric Heater Packages
• Internal Protection: Various models with non-fused, circuit breakers, and fused options
• Heater Part kW:
  • KFCEH0401N03: 3 kW
  • KFCEH0501N05, KFCEH2401C05: 5 kW
  • KFCEH0801N08, KFCEH2501C08: 8 kW
  • And more models with different power ratings
• Phase Options: 1 Phase and 3 Phase
• Intelligent Heat Capable: Available in certain models

Product Usage Instructions

Safety Considerations:
Install and service heating and air conditioning equipment only if you are trained to do so. Basic maintenance like cleaning coils can be done by untrained personnel. Always wear safety glasses and work gloves. Have a fire extinguisher readily available.

Installation:

1. Read the entire instruction manual before starting the installation.
2. Before any installation or modification, ensure the main electrical disconnect switch is in the OFF position. Tag the switch with a warning label.
3. Follow all safety codes and precautions mentioned in the manual.

Usage:
Use the heater according to the power rating specified for your model. Ensure proper electrical connections and phase settings as per your requirements. If you have an intelligent heat capable model, refer to the specific instructions for utilizing this feature.

Frequently Asked Questions (FAQ):

• Q: Can untrained personnel install the electric heater packages?
  A: Untrained personnel can perform basic maintenance functions like cleaning coils, but installation should be done by trained individuals.

• Q: What should be done before starting any installation or modification?
  A: Before beginning any installation or modification, make sure the main electrical disconnect switch(es) are in the OFF position. Tag the disconnect switch(es) with a suitable warning label.

NOTE:
Read the entire instruction manual before starting the installation.

SAFETY CONSIDERATIONS

• Installing and servicing heating and air conditioning equipment can be hazardous due to system pressures and electrical components. Only trained personnel should install or service heating and air conditioning equipment.
• Untrained personnel can perform basic maintenance functions such as cleaning coils, or cleaning and replacing filters. All other operations should be performed by trained personnel. When working on heating and air conditioning equipment, observe precautions in literature, on tags, and labels attached to the unit.
• Follow all safety codes. Wear safety glasses and work gloves. Have a fire extinguisher available.
• 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 that could result in personal injury or death. CAUTION is used to identify unsafe practices, which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions that will result in enhanced installation, reliability, or operation.

WARNING

ELECTRICAL SHOCK HAZARD

• Failure to follow this warning could result in personal injury or death.
• Before beginning any installation or modification, be sure the main electrical disconnect switch(es) is in the OFF position. There may be more than one power supply. Tag the disconnect switch(es) with a suitable warning label.

Accessory

Table 1 – Accessory Heater Usage

ELECTRIC HEATER PART NO.| ****

kW

| INTERNAL PROTECTION| MODEL FA, FB, PF SIZE| MODEL FC SIZE| MODEL FH SIZE| MODEL FX SIZE| MODEL FE, FK, FV, SIZE| FK, FV I N T E LLI G E N T t HEAT

CAPABLE

---|---|---|---|---|---|---|---|---
1 Phase
KFCEH0401N03| 3| Non — fused| 018, 024| 018| 001| 018, 024| —| NO
KFCEH0501N05 KFCEH2401C05| 5| Non — fused Circuit Breaker| 018 – 071| 018 – 070| 001 – 004| 018 – 060| 001 – 006| NO NO
KFCEH0801N08 KFCEH2501C08| 8| Non — fused Circuit Breaker| 018 – 071| 018 – 070| 001 – 004| 018 – 060| 001 – 006| NO NO
KFCEH2901N09| 9*| Non — fused| 036 – 071| 036 – 070| 002 – 004| 036 – 060| 003 – 006| YES†
KFCEH0901N10 KFCEH2601C10| 10| Non — fused Circuit Breaker| 018 – 071| 018 – 070| 001 – 004| 018 – 060| 001 – 006| NO NO
KFCEH3001F15 KFCEH2701C15 KFCEH3101C15| 15| Fused Circuit Breaker Circuit Breaker| 024 – 071| 024 – 070| 001 – 004| 024 – 060| 001 – 006| YES† YES† YES†
KFCEH3201F20 KFCEH2801C20 KFCEH3301C20| 20| Fused Circuit Breaker Circuit Breaker| 030 – 071| 030 – 070| 002 – 004| 030 – 060| 001 – 006| YES† YES† YES†
3 Phase Only
KFCEH1601315| 15| Non — fused| 036 – 071| 036 – 070| 002 – 004| 036 – 060| 001 – 006| NO
KFCEH2001318| 18| Non — fused| 042 – 071| 042 – 070| 003, 004| 042 – 060| 003 – 006| NO
3 Phase, Factory Shipped‡
KFCEH3401F24 KFCEH3501F30| 24

30

| Fused Fused| 048 – 071| 048 – 070| 003, 004| 048 – 060| 005, 006| YES† YES†

• Field convertible to 3 phase.
• These heaters are Intelligent Heat capable when used with the FK and FV fan coils and corporate 2—speed programmable Thermidistatt control (Tx —xRH), capable zoning system, or an FE fan coil and Infinity/Evolution Control.
• Field convertible to 1 phase, single or multiple supply circuit.

Table 2 – Minimum CFM and Motor Speed Selection

30
018| 525| 525| 525| —| 600| —| —| —| —| —
024| 700| 700| 700| 700| 700| 775| —| —| —| —
030, 033| —| 875| 875| 875| 875| 875| —| 1060*| —| —
036, 038,| —| 1050| 970| 970| 970| 920| —| 1040| —| —
042| —| 1225| 1225| 1225| 1225| 1225| 1225| 1225| —| —
048, 054,| —| 1400| 1400| 1400| 1400| 1400| 1400| 1400| 1400| 1400
060, 070,| —| 1750| 1750| 1750| 1750| 1750| 1750| 1750| 1750| 1750

Indicates medium speed (blue). All other motor speeds at low tap.

This instruction describes the installation of Part No. KFCEH accessory heaters in FA, FB, FC, FE, FH, FK, FV, FX and PF fan coils.

NOTE:
Electric heaters require a minimum airflow. Minimum airflow and motor speed selection are listed in Table 2. For 3–through 18–kW standard heaters, there are no clearance requirements for the first 36 in. (914 mm) of ductwork. For 20–through 30–kW heaters, a 1–in. (25 mm) clearance is required for the first 36 in. (914 mm) of ductwork.

INSTALLATION

Procedure 1 — Install Electric Heater Assembly

NOTE:
Ensure heater coils are not deformed or damaged during heater installation.

1. Make sure the power to the unit is off.

2. Remove the blower access panel of the fan coil unit.
   CAUTION
   ELECTRICAL OPERATION HAZARD

   • Failure to follow this caution may result in equipment damage or improper operation.
   • Before installation of the heater, the black and yellow pigtail leads must be removed from the fan coil PCB or wire harness to prevent possible damage to the product. Electrical power will be provided to the board through the heater circuit plug.

3. Disconnect 2 power wires (black and yellow pigtail leads) from the PCB or wire harness (if applicable) and discard. Wires may be part of a plug assembly or attached to terminals L1 and L2. Remove the cooling control plate from the fan coil (if equipped). For 18–, 24–, and 30–kW heaters, remove the adapter plate. (See Fig. 1.)

4. Insert the heater assembly into the front of the fan coil so that element rods engage holes in the rear heat shield.

5. Attach heater control plate to fan coil using 2 screws provided. For 18–, 24–, and 30–kW heater models, attach the front of the heater to the fan deck using a third screw. (See Fig. 1.)

Procedure 2 — Attach Fuse Box or Circuit Breaker Box

1. For 15– and 20–kW fused models:
   After installing the heater assembly, attach the fuse assembly to the side of the fan coil unit by inserting the fuse box tab between the insulation and to the left side of the unit and fan deck. Mount front of as-sembly to side flange with 2 screws provided. On fan coil units size 042 and larger, remove the wire tie that shortens the wire length between the heater and fuses. The fuse cover is closed by en-gaging dimples in the fuse box. (See Fig. 2.)

2. For 24– and 30–kW fused models:
   The fuse assembly is mounted on the heater. Be sure the fuse cover is closed by engaging the clip latch on the unit’s top panel. (See Fig. 1.)
   WARNING
   ELECTRICAL SHOCK HAZARD

   • Failure to follow this warning could result in personal injury or death.
   • Ensure the fuse box is closed before the power is turned to the ON position. There may be more than one power supply.

3. For 5– through 20–kW circuit breaker models:
   After installing the heater assembly, attach the circuit breaker as-sembly to the unit with screws provided. (See Fig. 3.) On fan coil units size 042 and larger, remove the wire tie that shortens the wire length between the heater and circuit breaker assembly to allow mounting of the circuit breaker assembly. (See Fig. 3.)

4. Circuit breaker models require installing a window bezel in the unit door to provide safe access to circuit breakers. The window bezel mounts on the outside of the blower door. (See Fig. 4.)

   • Cut insulation away from the rectangular access hole in the blower access panel.
   • Remove adhesive backing from the window bezel and the outside. Insert the window through the rectangular hole and sit firmly on the door surface. Press firmly in place to seat the adhesive. (See Fig. 4.)

Electrical Connections

Procedure 3 — Electrical Connections
Refer to unit instructions for recommended wiring procedures. Install wiring by all applicable local and national codes. (See Tables 3 and 4.) Connect heater wiring harness plug to receptacle on PCB or wire harness. A positive connection must be made between the plug and the receptacle. The plug will interlock with the receptacle when properly seated. Harness contains both 24-v control and high-voltage wiring. Blower power is provided through a heater harness.

NOTE:
Units with or without electric heaters require a minimum CFM. Refer to the unit wiring label to ensure the fan speed selected with electric heaters is equal to or greater than the minimum fan speed indicated. The minimum CFM for cooling is determined by the outdoor unit requirements. Use the higher of the 2 for year-round operation.

Wire 24–v Control Systems

1. Connections to unit
   Use No. 18 AWG color-coded, insulated (35_C minimum) wire to make low–voltage connections between the thermostat, fan coil unit, and outdoor unit. If the thermostat is located more than 100 ft (20 m) from the unit (as measured along the low–voltage wire), use No. 16 AWG color-coded, insulated (35_C minimum) wire. All wiring must be separated from line voltage power leads. Refer to outdoor unit wiring in-structions for additional wiring procedure recommenda- tions.

2. Transformer
   The transformer is factory wired for 230–v operation. For 208–v applications, disconnect the black wire on transformer 230–v terminal and reconnect it to 208–v terminal. (See Fig. 5.) The secondary circuit of the transformer is protected by a 5-amp fuse mounted on PCB.

CAUTION

ELECTRICAL OPERATION HAZARD

• Failure to follow this caution may result in product damage or improper operation.
• On FA, FB, FC, FH, FX, or ifW2, W3, and E are individually connected on any 3-stage heater (18, 20, 24, 30 kW), as with outdoor thermostats or any other situation, an emergency heat relay must be used. This relay is in kit Part No.
• KHAOT0201SEC and is normally used with kit Part No. KHAOT0301FST for 2 outdoor thermostat systems.

Table 3 – Electric Heater Electrical Data

HEATER PART NO.

|

kW

| P H A S E|

INTERNAL CIRCUIT PROTEC- TION

| HEATER AMPS 208/230v| MIN AMPACITY

208/230v*

| BRANCH CIRCUIT
---|---|---|---|---|---|---
Min Wire Size (AWG) 208/230v††| Min Gnd Wire Size 208/230v| Max Fuse/Ckt Bkr Amps 208/230v| Max Wire Length 208/230v (Ft)‡‡
Single Circuit| Dual Circuit| Single Circuit| Dual Circuit| Single Circuit| Dual Circuit| Single Circuit| Dual Circuit| Single Circuit| Dual Circuit| Single Circuit| Dual Circuit
240v| 208v| L1,L2| L3,L4| L1,L2| L3,L4| L1,L2| L3,L4| L1,L2| L3,L4| L1,L2| L3,L4| L1,L2| L3,L4
KFCEH0401N03| 3| 2.3| 1| None| 10.9/12.0| —| —| 15.9/17.3| —| —| 12/12| —| —| 12/12| —| —| 20/20| —| —| 67/68| —| —
KFCEH0501N051| 5| 3.8| 1| None| 18.1/20.0| —| —| 26.0/28.4| —| —| 10/10| —| —| 10/10| —| —| 30/30| —| —| 66/66| —| —
KFCEH0501N052| 5| 3.8| 1| None| 18.1/20.0| —| —| 31.2/33.5| —| —| 8/8| —| —| 10/10| —| —| 35/35| —| —| 85/88| —| —
KFCEH2401C052| 5| 3.8| 1| Ckt Bkr| 18.1/20.0| —| —| 31.2/33.5| —| —| 8/8| —| —| 10/10| —| —| 35/35| —| —| 85/88| —| —
KFCEH2401N08| 8| 6.0| 1| None| 28.9/32.0| —| —| 44.7/48.5| —| —| 8/8| —| —| 10/10| —| —| 45/50| —| —| 59/60| —| —
KFCEH2501C08| 8| 6.0| 1| Ckt Bkr| 28.9/32.0| —| —| 44.7/48.5| —| —| 8/8| —| —| 10/10| —| —| 45/50| —| —| 59/60| —| —
KFCEH2901N09| 9| 6.8| 1| None| 32.8/36.0| —| —| 49.5/53.5| —| —| 8/6| —| —| 10/10| —| —| 50/60| —| —| 54/87| —| —
KFCEH2901N09‡| 9| 6.8| 3| None| 18.8/20.8| —| —| 32.0/34.5| —| —| 8/8| —| —| 10/10| —| —| 35/35| —| —| 83/85| —| —
KFCEH0901N10| 10| 7.5| 1| None| 36.2/40.0| —| —| 53.8/58.5| —| —| 6/6| —| —| 10/10| —| —| 60/60| —| —| 78/80| —| —
KFCEH2601C10| 10| 7.5| 1| Ckt Bkr| 36.2/40.0| —| —| 53.8/58.5| —| —| 6/6| —| —| 10/10| —| —| 60/60| —| —| 78/80| —| —
KFCEH3001F15| 15| 11.3| 1| Fuse| 54.2/59.9| 36.2/40.0| 18.1/20.0| 76.3/83.4| 53.8/58.5| 22.7/25.0| 4/4| 6/6| 10/10| 8/8| 10/10| 10/10| 80/90| 60/60| 25/25| 88/89| 78/80| 75/76
KFCEH2701C15 KFCEH3101C15| 15| 11.3| 1| Ckt Bkr| —| 36.2/40.0| 18.1/20.0| —| 53.8/58.5| 22.7/25.0| —| 6/6| 10/10| —| 10/10| 10/10| —| 60/60| 25/25| —| 78/80| 75/76
KFCEH1601315| 15| 11.3| 3| None| 31.3/34.6| —| —| 47.7/51.8| —| —| 8/6| —| —| 10/10| —| —| 50/60| —| —| 56/90| —| —
KFCEH2001318| 18| 13.5| 3| None| 37.6/41.5| —| —| 55.5/60.4| —| —| 6/6| —| —| 10/8| —| —| 60/70| —| —| 76/77| —| —
KFCEH3201F20| 20| 15.0| 1| Fuse| 72.3/79.9| 36.2/40.0| 36.2/40.0| 98.9/108.4| 53.8/58.5| 45.3/50.0| 3/2| 6/6| 8/8| 8/6| 10/10| 10/10| 100/110| 60/60| 50/50| 85/109| 78/80| 59/59
KFCEH2801C20 KFCEH3301C20| 20| 15.0| 1| Ckt Bkr| —| 36.2/40.0| 36.2/40.0| —| 53.8/58.5| 45.3/50.0| —| 6/6| 8/8| —| 10/10| 10/10| —| 60/60| 50/50| —| 78/80| 59/59
KFCEH3401F24†| 24| 18.0| 3| Fuse| 50.1/55.4| —| —| 71.2/77.8| —| —| 4/4| —| —| 8/8| —| —| 80/80| —| —| 94/95| —| —
24| 18.0| 1| Fuse| 86.7/95.5| —| —| 116.9/127.9| —| —| 1/1| —| —| 6/6| —| —| 125/150| —| —| 115/116| —| —
KFCEH3501F30†**| 30| 22.5| 3| Fuse| 62.6/69.2| —| —| 86.8/95.0| —| —| 3/3| —| —| 8/8| —| —| 90/100| —| —| 97/98| —| —
30| 22.5| 1| Fuse| 109.0/120.0| —| —| 144.8/158.5| —| —| 0/00| —| —| 6/6| —| —| 150/175| —| —| 117/150| —| —

Table 4 – Field Multipoint Wiring or 24– and 30–kW Single Phase

HEATER PART NO.

|

kW

| P H A

S E

| HEATER AMPS 208/230v| MIN AMPACITY 208/230v*| MIN WIRE SIZE (AWG)

208/230v††

| MIN GND WIRE SIZE 208/230v| MAX FUSE/CKT BKR AMPS 208/230v| MAX WIRE LENGTH 208/230v (FT)‡‡
---|---|---|---|---|---|---|---|---
240v| 208v| L1,L2| L3,L4| L5,L6| L1,L2| L3,L4| L5,L6| L1,L2| L3,L4| L5,L6| L1,L2| L3,L4| L5,L6| L1,L2| L3,L4| L5,L6
KFCEH3401F24†| 24| 18.0| 1| 28.9/32.0| 28.9/32.0| 28.9/32.0| 44.7/48.5| 36.2/40.0| 36.2/40.0| 8/8| 8/8| 8/8| 10/10| 45/50| 40/40| 40/40| 59/60| 73/73| 73/73
KFCEH3501F30†| 30| 22.5| 1| 36.2/40.0| 36.2/40.0| 36.2/40.0| 53.8/58.5| 45.3/50.0| 45.3/50.0| 6/6| 8/8| 8/8| 10/10| 60/60| 50/50| 50/50| 78/80| 59/59| 59/59

• Includes blower motor amps of largest fan coil used with heater.
• Field convertible to 1 phase, single or multiple supply circuit.
• Field convertible to 3 phase.
• Heaters are Intelligent Heatt capable when used with the FK and FV fan coils and corporate Thermidistatt control (Tx–xRH), or FE fan coil and Infinityt/Evolutiont Control.
• Copper wire must be used. If other than uncoated (non–plated), 75_C ambient, copper wire (solid wire for 10 AWG and smaller, stranded wire for larger than 10 AWG) is used, consult applicable tables of the National Electric Code (ANSI/NFPA 70).
• The length shown is as measured 1 way along the wire path between the unit and the service panel for a voltage drop not to exceed 2%.

NOTES:

• For fan coil sizes 018-036.
• For fan coil sizes 042-060 and all FE, FK, and FV sizes.
• Single circuit application of F15 and F20 heaters requires a single-point wiring kit accessory.

1. Heater staging
   The units are shipped circuited for single-stage operation. Use outdoor thermostat kit Part No. KHAOT0301FST for 2–stage operation. Use both kits Part No. KHAOT0201SEC and KHAOT0301FST for 3–stage operation. When 2–stages are desired, cut W3 at the W2 wire nut, strip, and reconnect per the wiring staging layout in the Installation Instruc-tions for fan coils.

2. The 3–, 5–, 8–, and 10–kW heaters are single-stage only.

3. The 9– and 15–kW heaters are adaptable for 2–stage operation.

4. The 18–, 20–, 24–, and 30–kW heaters are adaptable for 3–stage operation.

5. Intelligent Heatt Staging
   FK and FV Fan Coils are capable of Intelligent Heatt sta-ging when installed with capable electric heaters (see Table

1. and a corporate Thermidistatt control (Tx–xRH), or Comfort Zone IIt/Zone Perfect Plus. An FE fan coil plus Infinity/Evolution Control combination is also capable of intelligent heat staging. Consult the fan coil Installation and Start-up Instructions for wiring details. Do not install with outdoor thermostats when installing for Intelligent Heatt Staging.

3. Rectifier and Time Delay Boards
   Each heater element is controlled by a relay mounted on the heater panel. The relay has a 24v DC coil. Each relay has a small rectifier board attached directly to relay coil terminals. The rectifier board converts incoming 24v AC control signal to DC. Some heaters may have up to three relays. The second and/or third relay rectifier board also has a time delay feature and a small jumper wire built into it. With the jumper uncut, the time delay allows the second stage heat to be energized approximately 5 sec after the first stage. On 18–, 24–, and 30–kW heaters, the third stage relay board jumper is cut at the factory. This provides an 8-second delay after the first stage relay closes.

Power Connections

NOTE:
Heater supply circuit wire size and overcurrent protection must comply with the National Electrical Code (NEC) and UL branch circuit requirements. (See Tables 3 and 4.) Wires and overcurrent protection, integral to the heater, are not required to meet branch circuit requirements. Internal circuit protection of 60 amps (maximum) is acceptable.

1. Unprotected heaters: (See Fig. 6, 10, and 11.)

   • The 5– through 10–kW single–phase and 15– and 18–kW 3–phase heaters can be wired for single–supply circuits only. The supply circuit connects to heater pigtail leads (terminal block on 18–kW heaters).

   • The 3– through 10–kW single–phase heaters can use a separate field–installed, factory–authorized disconnect kit which installs in fan coil.
     NOTE: Refer to the wiring label for component locations.

   • The 9–kW heater is factory wired for a single supply circuit, single phase. To convert heater to single supply circuit, 3 phase:

   1. Disconnect a blue wire from the limit switch (LS3). Cut, strip, and connect to field wire L3.
   2. Disconnect a yellow wire from LS1 and connect to LS3.
   3. Disconnect a blue wire from relay 2 terminal 2 and connect to LS1.

2. Circuit breaker heaters: (See Fig. 7 and 9.)

   • The 3– through 10–kW heaters can be wired for single–supply circuits only.
   • The 15– and 20–kW heaters can be wired for dual–sup-ply circuits only.

3. Fused heaters: (See Fig. 8, 12, 13, and 14.)

   • The 15– and 20-kW heaters can be wired for single– or dual–supply circuits. Single–supply circuit wiring requires a factory–authorized, single–point adapter kit.
   • The 24– and 30-kW heaters can be wired for single– or multiple–supply circuits. Heaters are factory wired for single circuit 3 phase. To convert heaters to single circuit single phase, disconnect the yellow lead from L3 and connect to L1. Disconnect the black lead from L3 and con-nect to L2. To convert heaters to multiple–supply circuits single phase, remove and discard leads between single–circuit terminal block and fuse block. Remove and discard single–circuit terminal block. Attach L1 through L6 power leads as indicated on the label next to the fuse block.

Ground Connections

WARNING

ELECTRICAL SHOCK HAZARD

• Failure to follow this warning could result in personal injury or death.
• According to NEC, ANSI/NFPA 70, and local codes, the cabinet must have uninterrupted or unbroken ground to minimize personal injury if an electrical fault should occur. The ground may consist of electrical wire or metal conduit when installed per existing electrical codes. (See Ground/Conduit Note below.)

NOTE:
Use UL–listed conduit and conduit connector for connecting supply wire(s) to the unit to obtain proper grounding. If the conduit connection uses reducing washers, a separate ground wire must be used. Grounding may also be accomplished by using grounding lugs provided in the control box.

1. For unprotected or single-circuit heaters, 1 equipment ground connection is provided on the fan coil unit. (See Fig. 1 or 2.)
2. For 15– and 20–kW circuit breaker heaters, an additional ground lug is provided on the circuit breaker mounting bracket for dual–circuit grounding. (See Fig. 3.)
3. For 15– and 20–kW fused heaters, an additional ground lug is provided on the fuse mounting bracket for dual-circuit grounding. (See Fig. 2.)
4. For 24– and 30–kW fused heaters, 2 additional ground lugs are provided for single-phase, multicircuit wiring. (See Fig. 1.)

Fan Speeds for FA(A,B,C) FB, FC4(B,C), FH, FX(A,B), FY, PF with PSC motors

1. Speed tap selection is done at the fan relay. To change motor speeds, disconnect the fan lead on the relay and replace it with the motor speed tap desired. Save the insulating cap and place it on the motor lead that was removed from the relay. (See Fig. 15.) Refer to Table 5 for further clarification of speed tap selections.

Table 5 – Color Code for Motor Lead Wires FA, FB, FC4(B, C), FH, FX4(A, B), PF with PSC motors

FK, FE, FV
Refer to Tables 6 thru 8 for minimum CFM and airflow delivery.

FC4D, FX4C, and PF with X13 motors
Speed tap selection is done at motor terminals. To change motor speed, disconnect the motor lead on terminal 2 (medium) and move to either terminal 1 (low) or 3 (high).

Conversion of Circuit Breaker for Downflow Applications

Procedure 4 — Conversion of Circuit Breaker for Downflow Applications

1. Tag and disconnect factory wiring from terminals on the circuit breaker(s).
2. Pull the white plastic release tab on the bottom of the circuit breaker straight out to release the circuit breaker from the bracket. (See Fig. 16.)
3. Remove quick-connect adapters from the factory side of the breaker (s). Reinstall adapters on the other end of breakers(s). Be sure the adapter is located between the lug screw and the plate. Torque lug screw to 30–in.–lb.
4. Rotate the breaker 180_ from its original position and reinstall it in the bracket. Slide breaker slot into sheet metal tab and snap breaker into place. Make sure both tabs engage the breaker. Re-connect wiring on the opposite end. Make sure wires are positioned as before.
5. Remount the circuit breaker bracket into the unit so that the switch will be in the UP position when ON.

Procedure 5 — Attach Wiring Diagram and Rating Label
Attach heater rating label included with the kit over existing electrical information label located on front access panel of fan coil. (See Fig. 17.) If the kit contains multiple rating labels, ensure the correct label is applied (check phase and supply circuits). Affix wiring diagram label 3, included with the kit, on the blower housing above the fan coil wiring label. Do not cover up the existing wiring label.

NOTE:
The fact there is a label 3 does not imply there should be label 1 or 2. These kits have only one wiring label — label 3.

Procedure 6 — Verify Installation
After completion of heater installation, check the wiring to ensure tightness and that proper connections and routings have been made. Ensure all electrical covers are in place and proper labels have been applied. Reinstall the blower access panel before turning the unit power on.

Table 6 – FK, FV, Airflow Delivery (CFM) — Electric Heating Modes

• Airflow is not recommended for heater/system size.
• NOTE: LO, NOM, and HI refer to AC/HP CFM ADJUST selection.

Table 7 – FK, FV, Minimum CFM for Electric Heater Application (CFM) — Electric Heating Modes

FAN COIL UNIT| HEAT PUMP

UNIT SIZE

| CFM
---|---|---
HEATER SIZE kW
5| 8, 9, 10| 15| 18, 20| 24, 30

001

002

| Heater Only| 625| 625| 725| 875| —
018| 625| 625| —| —| —
024| 650| 725| 875| —| —
030| 800| 875| 875| 1040| —
036| 970| 970| 970| 1040| —

003

| Heater Only| 675| 700| 850| 1050| —
024| 675| 875| 875| —| —
030| 800| 875| 1100| 1150| —
036| 975| 975| 1100| 1225| —
042| 1125| 1125| 1125| 1225| —

005

| Heater Only| 675| 700| 850| 1050| 1400
030| 800| 875| 875| 1150| —
036| 975| 975| 1100| 1225| —
042| 1125| 1125| 1125| 1225| —
048| 1305| 1305| 1305| 1305| 1400

006

| Heater Only| 1050| 1050| 1050| 1050| 1750
036| 1100| 1100| 1350| 1350| —
042| 1125| 1125| 1350| 1350| —
048| 1300| 1300| 1350| 1465| 1750
060| 1625| 1625| 1625| 1750| 1750

NOTES:

1. Heater Only—Air conditioner with electric heater application.
2. These airflows are minimum acceptable airflows as UL listed. The actual airflow delivered will be per the airflow delivery chart for Electric Heating Modes.

Table 8 – FE4A/FE5A Fan Coil Airflow Delivery Chart (CFM)—Electric Heating Modes

NOTES:

1. Emergency — Air conditioner with electric heater application, or emergency heat.
2. These airflows are minimal as UL listed.
3. A dashed entry indicates that the heater/fan coil/outdoor unit combination is not approved. Do not apply.

Copyright 2008 CAC/BDP. Printed in U.S.A.

Manufacturer reserves the right to change, at any time, specifications and designs without notice and obligations.

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