Fan Coils Technical Support Manual - Safety Labeling and Signal Words - Technical Support Manual

Oct 23, 2026

Technical support manual for fan coil units covering FEA4X, FSA4X, and WAHA models. Includes safety labeling guidance using DANGER, WARNING, CAUTION, and NOTE, with specific electrical shock hazard instructions to disconnect power before installation or servicing. Provides a table of contents listing model number identification, wiring diagrams, airflow tables, exploded drawings, and parts lists. Supplies model number identification guides explaining components such as fan coil type, motor type, refrigerant, metering device, installation type, and nominal capacity, along with electrical heater kit identification.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages12

Reading Time30 min

AccessFree to download

Model Number Identification

Wiring Diagram FEA4X & WAHA

Wiring Diagram FSA4X

Airflow Tables

Exploded Drawing

Parts List FEA4X

Parts List FSA4X

Parts List WAHA

TECHNICAL SUPPORT MANUAL Fan Coils FEA4X, FSA4X, WAHA | Safety Labeling and Signal Words | | | --- | --- | | DANGER, WARNING, CAUTION, and NOTE
The signal words DANGER, WARNING, CAUTION, and NOTE are used to identify levels of hazard seriousness. The signal word DANGER is only used on product labels to signify an immediate hazard. The signal words WARNING, CAUTION, and NOTE will be used on product labels and throughout this manual and other manuals that may apply to the product.
DANGER − Immediate hazards which will result in severe personal injury or death.
WARNING − Hazards or unsafe practices which could result in severe personal injury or death. CAUTION − Hazards or unsafe practices which may result in minor personal injury or product or property damage.
NOTE − Used to highlight suggestions which will result in enhanced installation, reliability, or operation. | Signal Words in Manuals
The signal word WARNING is used throughout this manual in the following manner:
! WARNING
The signal word CAUTION is used throughout this manual in the following manner:

! CAUTION

Signal Words on Product Labeling
Signal words are used in combination with colors and/or pictures on product labels. | TABLE OF CONTENTS Model Number Identification ..................... 2 Wiring Diagram FEA4X & WAHA ................. 3 Wiring Diagram FSA4X ......................... 4 Airflow Tables .................................. 5 Exploded Drawing .............................. 6 Parts List FEA4X ........................... 7 − 8 Parts List FSA4X .......................... 9 − 10 Parts List WAHA .......................... 11 − 12 MODELS FEA4X1805A1 FEA4X1807A1 FEA4X2405A1 FEA4X2407A1 FEA4X2411A1 FEA4X3005A1 FEA4X3007A1 FEA4X3011A1 FEA4X3605A1 FEA4X3607A1 FEA4X3611A1 FSA4X1800A1 FSA4X1805A1 FSA4X1807A1 FSA4X1811A1 FSA4X2400A1 FSA4X2405A1 FSA4X2407A1 FSA4X2411A1 FSA4X3000A1 FSA4X3005A1 FSA4X3007A1 FSA4X3011A1 FSA4X3600A1 FSA4X3605A1 FSA4X3607A1 FSA4X3611A1 WAHA18054A1 WAHA18074A1 WAHA24054A1 WAHA24074A1 WAHA24114A1 WAHA30054A1 WAHA30074A1 WAHA30114A1 WAHA36054A1 WAHA36074A1 WAHA36114A1 | ! WARNING | | --- | | ELECTRICAL SHOCK HAZARD
Failure to turn off electric power could result in personal injury or death.
Before installing or servicing system, turn off main power to the system. There may be more than one disconnect switch, including accessory heater(s) . | 664 04 5002 00 Aug. 2010 TECHNICAL SUPPORT MANUAL Fan Coils: FEA4X, FSA4X, WAHA | FAN COIL MODEL NUMBER IDENTIFICATION GUIDE | | | | | | | | | | | | | | | | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | | F | | | E | | A | | | 4 | | | X | | 18 | | | 05 | | | A | | | 1 | | F = Fan Coil | | | | | | | | | | | | | | | | | | | | | | | | | | E = High Efficiency ECM
S = Standard PSC MOTOR TYPE | | | | | | | | | | | | | | | | | | | | | | | | | | A = Apartment INSTALLATION TYPE | | | | | | | | | | | | | | | | | | | | | | | | | | 2 = R−22
4 = R−410A REFRIGERANT | | | | | | | | | | | | | | | | | | | | | | | | | | X = TXV METERING DEVICE | | | | | | | | | | | | | | | | | | | | | | | | | | 18 = 18,000 BTUH = 1½ tons 24 = 24,000 BTUH = 2 tons
30 = 30,000 BTUH = 2½ tons 36 = 36,000 BTUH = 3 tons NOMINAL CAPACITY | | | | | | | | | | | | | | | | | | | | | | | | | | 05 = kW electric heat (factory installed)
07 = kW electric heat (factory installed)
11 = kW electric heat (factory installed) HEAT | | | | | | | | | | | | | | | | | | | | | | | | | | Sales Code | | | | | | | | | | | | | | | | | | | | | |

FAQs

What do the safety signal words DANGER, WARNING, CAUTION, and NOTE mean in this manual?

DANGER indicates immediate hazards that will result in severe personal injury or death. WARNING and CAUTION cover hazards or unsafe practices that could cause severe injury/death or minor injury and/or damage. NOTE highlights suggestions that enhance installation, reliability, or operation.

What electrical safety instruction must be followed before installing or servicing the system?

Turn off the main power to the system before installing or servicing. The system may have more than one disconnect switch, including accessory heater(s).

What information is provided in the fan coil model number identification guide?

It breaks down model codes to identify fan coil type, motor type, installation type, refrigerant, metering device, nominal capacity, and factory-installed electric heat details, enabling correct unit selection and matching.

Oct 23, 2026

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