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WAHA18074A1
Installation Guide
10 pgs2.4 Mb0
Installation Guide
8 pgs1.47 Mb0

ICP FEA4X1805A1, FEA4X1807A1, FEA4X2405A1, FEA4X2407A1, FEA4X2411A1 Installation Guide

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NOTE: Read the entire instruction manual before starting installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS ........................... 1
INTRODUCTION ...................................... 1
INSTALLATION ....................................... 1
CHECK EQUIPMENT .................................. 1
MOUNT FAN COIL .................................... 2
DUCTWORK SPECIFICATIONS ......................... 3
FIELD INSTALLATION OF CONTROLS .................. 3
ELECTRICAL CONNECTIONS .......................... 3
START-UP ........................................... 4
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, 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 individual
instructions packaged with kits or accessories when installing. Follow all safety codes. Wear safety glasses, protective
clothing, and work gloves. Use quenching cloth for brazing operations. Have a fire extinguisher available. Read these
instructions thoroughly and follow all warning or cautions included in literature and attached to the unit. Consult local
building codes and the current editions of the National
Electrical Code (NEC) NFPA 70. In Canada, refer to the current editions of Canadian Electrical
Code CSA C22.1.
Recognize safety information. This is the safety alert symbol
/K. 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 may result in minor
personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced
installation, reliability, or operation.
INTRODUCTION
Fan Coils may be used for cooling or heat pump operation, with or without electric heat. Models are available with factory installed electric heaters (5 kW, 7.5 kW, or 11 kw) and with no heat.
Installations without electric heat require a Cooling Control Kit (accessory part number AMWK001CK).
FEA and WAHA Fan Coils may be used for cooling or heat pump operation, with or without electric heat. Models have factory installed electric heaters (5 kW, 7.5 kW, or 11 kw).
FSA, FEA, and WAHA Fan Coils are designed to be installed in an upflow position, free air return ONLY, suitable for closet or
flush-mount installations. Units are designed for upflow applications only. Local codes
may limit this free-air-return type unit to installation in single-level applications. When electric heater is not needed, a
factory approved accessory cooling control package is required. See instructions packaged with accessory for
installation procedures.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or death.
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. Lock out and tag switch with a
suitable warning label.
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs.
Use care and wear appropriate protective clothing
and gloves when handling parts.
INSTALLATION
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 rating plate on unit. It contains
information needed to properly install unit. Check rating plate to be sure unit matches job specifications. A front access panel is
provided, which permits access to blower assembly and electrical controls for removal and servicing.
NOTE: Minimum clearance of 21" (533 mm) is required in front of access panel for servicing only. Installation clearance from
Specificationssubjectto change without notice. 664 01 5002 01 Dec. 2012
combustible materials is 0" (0 mm) from cabinet and supply-air duct (plenum included). Leave room for condensate pan and refrigerant line connection. (See Figure 1 and Figure 2)
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in product or property damage.
Wrap a wet cloth around rear of fitting to prevent
damage to TXV. If using a TXV in conjunction with single-phase
reciprocating compressor, a compressor start capacitor and relay are required. Consult outdoor
unit pre-sale literature for start assist kit part number.
REFRIGERANT -X
c B
69.8 _1
_28.45_
KNocKouT_-. _!
DRAINS_ \\\ ,i_.,I
_- \\
106.4
LINES ENTRY Ntk_
TOP VIEW
[_1 BLOWER, CONTROL AND
ACCESS PANEL
II LIQUID TUBE
UNIT CONNECTION SIZES
SUCTION. - 3/4"I.D. SWEAT LIQUID, 3/d' I.D.SWEAT
CONDENSATE, 3/4"NPT
FILTER MEDIA
-- SECONDARY DRAIN
SUCTION -_,
TUBE
PRIMARY DRAIN j
!
FRONT VIEW
"_1 ELECTRIC HEATER
Figure 1 - Dimensional Drawing with Power Disconnect
SIDEVIEW
Model Size A B C D
DIMENSIONAL DATA (in.)
18 153/16 81/4 23/4 381/16
FSA2X 24 153/16 81/4 23/4 381/16 FSA4X 30 153/16 81/4 23/4 381/16
36 183/8 91/4 5 433/16
Model Size A B C D
FEA4X 24 153/16 81/4 23/4 381/16
WAHA 30 183/8 91/4 5 433/16
18 153/16 81/4 23/4 381/16
36 183/8 91/4 5 433/16
Model Size A B C D
DIMENSIONAL DATA (mm)
18 386 210 70 967
FSA2X 24 386 210 70 967 FSA4X 30 386 210 70 967
36 467 235 127 1097
Model Size A B C D
18 386 210 70 967
FEA4X 24 386 210 70 967 WAHA 30 467 235 127 1097
36 467 235 127 1097
Figure 3 - Dimensions
Mount Fan Coil
MIN DRAIN
MIN
DRAIN EXIT DRAIN
PRIMARY TO UNIT) DRAIN
NOTE: Use plastic pipe from
condensate pan to exterior of fan coil.
SECONDARY
(TRAP EXTERNAL
A07427
Figure 2 - Condensate Drain
2 Specifications subject to change without notice. 664 01 5002 01
The unit is designed for free-air return as enclosed in a closet with Iouvered door or for flush mounting in a wall. A
factory-authorized Iouvered grille kit is available for flush mount application (accessory part numbers AMWKOOlWG and
Iouvered door in return-air path, the free area of Iouvered opening in the door must be a minimum of 2.25 ft 2 (.21 m2).
Either align door opening with unit inlet or provide a 10" (254 mm) clearance between door and unit. If unit is to be flush
mounted in a wall, provide adequate support underneath base of unit. To assure proper condensate drainage, be sure unit is
level. NOTE: Do not remove seals from coil until tubing connections
are ready to be made. See instructions packaged with outdoor
unit for connecting refrigerant tubes. Move unit into place and install refrigerant tubing as follows:
1.Routetubingtoconnectionpoints.
2.Removeplugsfromliquidandsuctiontubes.
3.Brazeconnectionsusingeithersilverbearingor non-silverbearingbrazingmaterial.Donotusesoft
solder(materialswhichmeltbelow800°F/ 427°0).
Consult local code requirements.
4. Pressurize system and leak-test. Repeat procedure until leak-free.
ENVIRONMENTAL HAZARD
Failure to follow this caution may result in environmental damage,
Do not vent refrigerant to atmosphere, Recover during system repair or final unit disposal.
Ductwork Specifications
Connect supply-air duct over 3/4" (19 mm) flange provided on supply-air opening. Secure duct to flange using applicable
fasteners for type of duct used, and seal duct-to-unit joint.
NOTE: Short duct runs tend to increase noise level.
When fan coil is equipped with an electric heater, install air ducts in accordance with standards 90A and 90B of National
Fire Protection Association (NFPA). Use of flexible connectors
between ductwork and unit will prevent transmission of vibration. When electric heater is installed, use heat-resistant
material for a flexible connector between ductwork and unit air discharge connection. Ductwork passing through
NOTE: Unit is intended for nonducted return-air applications. Local codes may limit this unit to single-level applications.
Condensate Drain
Condensate pan has primary and secondary drain connections to meet FHA requirements. (See Figure 2) These connections
have 3/4" (19 mm) female pipe threads. Tubing for all
condensate drains should be a minimum of 7/8" (22 mm) OD.
Drain lines from condensate pan to exterior of unit must be
plastic pipe. Drain should be pitched downward at a slope of 1" per 10' (25 mm per 3 m). If coil is located in or above a living
drain connection.
Run this drain to a place in compliance with local installation
codes where it will be noticed when unit is operational. Condensate flow from secondary drain indicates a plugged primary drain.
Install a 2" (51 mm) trap in condensate drain line as close to
coil as possible. Make sure that the top of trap is below connection to drain pan to prevent condensate from
overflowing drain pan. Prime trap with water. Insulate trap if
located above a living area and test condensate line for leaks.
Consult local codes for additional restrictions or precautions.
Field Installation of Controls
Units shipped from factory without controls require a
field-installed cooling control kit or heater. These kits are completely assembled and factory-wired for easy installation.
See Installation Instructions packaged with control panel for
installation procedures. These unit Installation Instructions are
to be used in conjunction with instructions packaged with
heater or cooling control. When installing accessory heat,
optional cooling control kit is not required.
Electrical Connections
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or death.
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. Lock out and tag switch with a
suitable warning label.
NOTE: Before proceeding with electrical connections, make certain that voltage, frequency, and phase correspond to that specified on rating plate. Also, check to be sure that the service provided by utility is sufficient to handle additional load imposed by this equipment.
Refer to 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 might apply. Unit must have a separate branch electrical circuit. When equipped with
readily accessible to the unit.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Field wires on side of disconnect found in fan coil remain live, even when pull-out is removed.
Service and maintenance to incoming wiring cannot be performed until main disconnect switch (remote to the unit) is turned off. Lock out and tag
switch with a suitable warning label.
Unit cabinet must have a continuous electrical path to ground in order to minimize potential for
personal injury or death if an electrical fault should occur. This ground may consist of electrical wire or approved conduit when installed in accordance
with existing codes.
NOTE: All control kits are shipped from factory wired for 230VAC transformer operation. For 208VAC operation, move
black primary lead from 230VAC terminal to 208VAC terminal. See Fig. 3 and 4 for field low-voltage wiring. See Fig. 1 for
location of the electrical inlets. For maximum ampacity and over-current protection, see unit rating plate.
1. Provide power supply for unit being installed in accordance with unit wiring diagram and rating plate.
2. Connect line-voltage leads to field lugs. Use copper wire only.
3. Use UL listed conduit and conduit connector for connecting line-voltage leads to unit and obtaining
proper ground. If conduit connection uses reducing washers, a separate ground wire must be used.
Grounding can also be accomplished by using the ground lug provided in the control box.
4. Install rubber grommet packed with unit in hole for low-voltage wires.
664 01 5002 01 Specifications subject to change without notice. 3
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