International Comfort Products EAM4X18L14A, EAM4X19L17A, EAM4X24L14A, EAM4X24L17A, EAM4X25L17A Installation Manual
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INSTALLATION INSTRUCTIONS
Evaporator Coils, Multipoise
EAM4X18−61 & WLAM 19−61
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1.............................
INTRODUCTION 1........................................
INSTALLATION 1.........................................
Inspect Equipment 1.....................................
Select Installation Procedure 2............................
Installation of Evaporator Coils 3...........................
Connect Refrigerant Piping 4..............................
Connect Lines 4.........................................
Refrigerant Metering Device 4.............................
Condensate Drain Line Connection 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 the individual
instructions packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Use quenching cloth for brazing operations.
Have 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 the Canadian Electrical
Code CSA C22.1.
Recognize safety information. When you see this symbol
the unit and in instructions or 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 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.
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or
death.
Before installing, modifying or servicing system, always turn
off main power to system. There may be more than one
disconnect switch. Lock out and tag switch with a suitable
warning label.
WARNING
on
!
CAUTION
UNIT OR PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in property damage.
Take precautions to ensure Aluminum tubes do not come in
direct contact or allow for condensate run off with a dissimilar
metal. Dissimilar metals can cause galvanic corrosion and
possible premature failure.
!
!
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.
!
PERSONAL INJURY HAZARD
Failure to follow this caution may result in personal injury.
This coil contains Nitrogen precharge of 15 PSIG. Release
of this pressure through the center of the rubber plugs is
required before removing the plugs.
IMPORTANT: Nitrogen can leak out through the hole that the
needle pierced in the plugs. This does not indicate a leaking coil
nor warrant return of the coil.
WARNING
EXPLOSION HAZARD
Failure to follow this warning could result
in death, serious personal injury, and/or
property damage.
Never use air or gases containing oxygen
for leak testing or operating refrigerant
compressors. Pressurized mixtures of air
or gases containing oxygen can lead to an
explosion.
CAUTION
CAUTION
INTRODUCTION
Use this instruction manual to install EAM4X & WLAM indoor coils
on multipoise furnaces. EAM4X & WLAM models are enclosed in
a casing.
Specifications subject to change without notice.
484 01 3905 00 3/23/17
INSTALLATION
INSPECT EQUIPMENT
File claim with shipper if equipment is damaged.
SELECT INSTALLATION
For upflow application follow:
A. Upflow coil installation.
See Table 1 for dimensions. Note instructions for placement of
coil casing on furnace.
For downflow application follow:
B. Downflow coil installation.
For horizontal application follow:
C. Horizontal coil Installation
Supply
Return
Upflow
Furnace
Installation
Horizontal Right Furnace Installation
Supply
Return
Horizontal Left Furnace Installation
Evaporator
Coil
Evaporator
Coil
Return
Supply
Return
Supply
A05400
Downflow
Furnace
Installation
A05401
Table 1
COIL INFORMATION
Coil Connection
Tube Size
inches
Model Number Tons
Flush to fit
Furnace width
inches (mm) Liquid Suction
EAM4X18L14A 1*1/2 14*3/16 (360) 3/8 5/8
EAM4X19L17A 1*1/2 17*1/2 (445) 3/8 3/4
EAM4X24L14A 2 14*3/16 (360) 3/8 5/8
EAM4X24L17A 2 17*1/2 (445) 3/8 5/8
EAM4X25L17A 2 17*1/2 (445) 3/8 3/4
EAM4X30L14A 2*1/2 14*3/16 (360) 3/8 3/4
EAM4X30L17A 2*1/2 17*1/2 (445) 3/8 3/4
EAM4X36L14A 3 14*3/16 (360) 3/8 3/4
EAM4X36L17A 3 17*1/2 (445) 3/8 3/4
EAM4X36L21A 3 21 (533) 3/8 3/4
EAM4X37L17A 3 17*1/2 (445) 3/8 3/4
EAM4X37L21A 3 21 (533) 3/8 7/8
EAM4X42L21A 3*1/2 21 (533) 3/8 7/8
EAM4X42L24A 3*1/2 24*1/2 (622) 3/8 7/8
EAM4X43L21A 3*1/2 21 (533) 3/8 7/8
EAM4X48L17A 4 17*1/2 (445) 3/8 7/8
EAM4X48L21A 4 21 (533) 3/8 7/8
EAM4X48L24A 4 24*1/2 (622) 3/8 7/8
EAM4X60L21A 5 21 (533) 3/8 7/8
EAM4X60L24A 5 24*1/2 (622) 3/8 7/8
EAM4X61L24A 5 24*1/2 (622) 3/8 7/8
Coil Connection
Tube Size
inches
Model Number Tons
Flush to fit
Furnace width
WLAM184AA 1*1/2 14*3/16 (360) 3/8 5/8
WLAM194BA 1*1/2 17*1/2 (445) 3/8 3/4
WLAM244AA 2 14*3/16 (360) 3/8 5/8
WLAM244BA 2 17*1/2 (445) 3/8 5/8
WLAM254BA 2 17*1/2 (445) 3/8 3/4
WLAM304AA 2−1/2 14*3/16 (360) 3/8 3/4
WLAM304BA 2−1/2 17*1/2 (445) 3/8 3/4
WLAM364BA 3 17*1/2 (445) 3/8 3/4
WLAM374BA 3 17*1/2 (445) 3/8 3/4
WLAM374CA 3 21 (533) 3/8 7/8
WLAM424CA 3−1/2 21 (533) 3/8 7/8
WLAM434CA 3−1/2 21 (533) 3/8 7/8
WLAM484CA 4 21 (533) 3/8 7/8
WLAM604CA 5 21 (533) 3/8 7/8
WLAM604DA 5 24*1/2 (622) 3/8 7/8
WLAM614DA 5 24*1/2 (622) 3/8 7/8
Figure 1 − Correct Orientation of Coil Support on Furnace
INSTALLATION OF EVAPORATOR COILS
A. Upflow coil installation.
The cased coil is designed to fit furnaces of the same width.
1. Set coil in place on upflow furnace discharge air opening.
2. Ensure coil is level for proper condensate drainage. Do not tip
coil toward condensate drain. Coil casing need not be
fastened or screwed to furnace.
2 484 01 3905 00
Specifications subject to change without notice.
3. When installing wider coil on narrow furnace, create field
fabricated adapter. (See Figure 2)
4. When installing narrow coil on wide furnace, create field
fabricated adapter. (See Figure 2)
NOTE: On upflow installations where the indoor coil is placed in
an unconditioned space, a 6” wide piece of insulation should be
applied and wrapped around the outside of coil casing and supply
duct contact point.
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