ICP END4X36L17A1 Installation Guide
INSTALLATION INSTRUCTIONS
Cased N Coil, Upflow−Downflow
END4X, ENW4X
NOTE: Read the entire instruction manual before starting the
installation.
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.
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
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.
!
CAUTION
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.
on
!
CAUTION
ENVIRONMENTAL HAZARD
Failure to follow this caution may result in environmental
pollution.
Remove and recycle all components or materials (i.e.
oil, refrigerant, etc.) before unit final disposal.
!
CAUTION
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.
!
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.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1............................
INTRODUCTION 2.......................................
INSTALLATION 2........................................
Airflow 2...............................................
TXV 2.................................................
Inspect Equipment 2....................................
Select Installation Procedure 2...........................
Installation of Furnace Coils 3............................
Connect Refrigerant Piping 5.............................
Connect Refrigerant Liquid and Suction Lines 5.............
Refrigerant Metering Device 5............................
Condensate Drain Line Connection 5......................
Waste Line Connection 6................................
Humidifier Application 6..................................
INTRODUCTION
Use this instruction manual to install indoor coils on upflow or
downflow furnaces. Do not install coil in horizontal position. Coils
are enclosed in a painted casing have factory−installed TXV’s.
These coils are used with R−410A refrigerant systems.
Specifications subject to change without notice.
484 01 3601 02 8/9/17
INSTALLATION
S water blow−off
When attaching the coil and building the plenum, pay special
These units can be installed in multiple configurations. Before
installation, there are several performance requirements that
must be considered because poor installation can negatively
alter performance. This section will briefly discuss those factors.
Airflow
Airflow amount and distribution are vital to adequate system
performance. Problems that can be experienced with incorrect
airflow include:
S low system performance
S restricted TXV
S frosted coil
S poor humidity control
Table 1
FLUSH FIT TO
MODEL NUMBER TONS
END4X18L14A 1-1/2 14-3/16 (360) 3/8 5/8 12-7/8 (327) N/A N/A N/A
END4X19L17A 1-1/2 17-1/2 (445) 3/8 5/8 16-3/16 (411) No Ye s Yes
END4X24L14A 2 14-3/16 (360) 3/8 5/8 12-7/8 (327) N/A N/A N/A
END4X24L17A 2 17-1/2 (445) 3/8 5/8 16-3/16 (411) No Ye s Yes
END4X30L14A 2-1/2 14-3/16 (360) 3/8 3/4 12-7/8 (327) N/A N/A N/A
END4X30L17A 2-1/2 17-1/2 (445) 3/8 3/4 16-3/16 (411) No Ye s Yes
END4X31L17A 2-1/2 17-1/2 (445) 3/8 3/4 16-3/16 (411) No Ye s Yes
END4X36L17A 3 17-1/2 (445) 3/8 3/4 16-3/16 (411) No Ye s Yes
END4X36L21A 3 21 (533) 3/8 3/4 19-5/8 (498) No Ye s Yes
END4X37L17A 3 17-1/2 (445) 3/8 3/4 16-3/16 (411) Yes No No
END4X42L17A 3-1/2 17-1/2 (445) 3/8 7/8 16-3/16 (411) No Ye s Yes
END4X42L21A 3-1/2 21 (533) 3/8 7/8 19-5/8 (498) No Ye s Yes
END4X43L24A 3-1/2 24-1/2 (622) 3/8 7/8 23-1/8 (587) No Ye s Yes
END4X48L21A 4 21 (533) 3/8 7/8 19-5/8 (498) No Ye s Yes
END4X48L24A 4 24-1/2 (622) 3/8 7/8 23-1/8 (587) No Ye s Yes
END4X60L24A 5 24-1/2 (622) 3/8 7/8 23-1/8 (587) No Ye s Yes
END4X61L24A 5 24-1/2 (622) 3/8 7/8 23-1/8 (587) No Ye s No
ENW4X36L17A 3 17-1/2 (445) 3/8 3/4 16-3/16 (411) Ye s No No
ENW4X42L21A 3-1/2 21 (533) 3/8 7/8 19-5/8 (498) Ye s No No
ENW4X48L21A 4 21 (533) 3/8 7/8 19-5/8 (498) Yes No No
ENW4X60L24A 5 24-1/2 (622) 3/8 7/8 23-1/8 (587) Ye s No No
FURNACE WIDTH
inches (mm)
COIL CONNECTION
Liquid Suction
END4X, ENW4X COIL INFORMATION
TUBE SIZE
inches (mm)
attention to the effect these details will have on airflow. After
system start−up, check the cfm to insure that it is correct.
(Generally, the cfm should be 350 to 400 cfm/ton during normal
cooling operation.)
Cabinet Sweating
If this unit is installed in a garage, attic, or other unconditioned
space, special attention needs to be given to the potential of
cabinet sweating. A 6−in (152 mm) wide piece of insulation
should be wrapped around the coil casing and supply duct
connection point.
Inspect Equipment
File claim with shipper if equipment is damaged.
SHELF WIDTH
(See Figure 1,
Dim. A)
inches (mm)
FITS NEXT SMALLER FURNACE
Equal
Overhang
Overhang with
Tr an si tio n
Offset Left
Select Installation Procedure
!
CAUTION
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in property damage.
Installing coils rotated 90_ from the front of the furnace, in
upflow or downflow applications, may cause water blow−off
or coil freeze−up due to the concentration of air on one slab
of the coil or lack of air to a slab in the coil. It is
recommended that on this type of application, a
field−supplied adapter be placed between the coil and
furnace to allow air to distribute properly between all slabs
19
3
⁄16″
(487)
1
⁄2″
(13)
(27)
3
1
⁄16″
(30)
A
1
1
⁄16″
Field-supplied
Plenum
6″
(152)
Field
Coil
Support Shelf
1
2
⁄4″
(57)
of the coil.
See
Table 1
See Table 1 for dimensions and overhang options. Refer to
Furnace
instructions for placement of coil casing on furnace.
Figure 1 − Correct Orientation of Coil Support on Furnace
2 484 01 3601 02
Specifications subject to change without notice.
A08336
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