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EVD4X, ESD4X, WMVC, WMSC: Installation Instructions
CAUTION
!
IMPORTANT – UNCASED INSTALLATIONS
EVD4X and WMVC units are not intended to be installed uncased
in a plenum and must be installed on an agency listed Furnace.
Failure to comply may damage the coil assembly and can result in
poor performance and property damage.
Any uncased V-Coil installation is not recommended due to factors
such as:
-
Mounting dimensions must be held to ensure proper alignment
between the coil and the condensate drain pan.
-
Level installation and the relationship of the condensate drain
pan and the coil. If the installation is not level and properly
aligned, condensate blow-off could result.
-
Unrestricted airflow across the coil is vital to adequate system
performance.
-
The factory-installed foil-faced insulation in the front and rear
of the coil are required to prevent bypass airflow.
-
Heat shields for the condensate drain pan (in upflow
installations) and cross members (in downflow installations)
must not be removed.
Model
ESD4X24M14A / WMSC24414XA
EVD4X18M14A / WMVC18414XA
EVD4X19M17A / WMVC19417XA
EVD4X24M14A / WMVC24414XA
EVD4X24M17A / WMVC24417XA
EVD4X25M17A / WMVC25417XA
EVD4X30M14A / WMVC30414XA
EVD4X30M17A / WMVC30417XA
EVD4X31M17A / WMVC31417XA
EVD4X36M17A / WMVC36417XA
EVD4X36M21A / WMVC36421XA
EVD4X37M21A / WMVC37421XA
EVD4X38M17A / WMVC38417XA
EVD4X42M17A / WMVC42417XA
EVD4X42M21A / WMVC42421XA
EVD4X42M24A / WMVC42424XA
EVD4X48M21A / WMVC48421XA
EVD4X48M24A / WMVC48424XA
EVD4X49M24A / WMVC49424XA
EVD4X60M24A / WMVC60424XA
EVD4X61M24A / WMVC61424XA
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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
of the coil. It is required 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 of the coil.
Installation of Evaporator Coils
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
3. When installing wider coil on narrower furnace, it is recommended
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 the coil casing and supply duct contact
point. Consult the furnace installation instructions for any special
requirements when installing the coil to the furnace.
Table 1 – Coil Connections / Orientations
Line Set
Connection
Flush Fit to
Nom.
Tube Size, in.
Furnace Width,
Tons
Suction Liquid
2
3/4
3/8
14-3/16 (360)
1.5
3/4
3/8
14-3/16 (360)
1.5
3/4
3/8
17-1/2 (445)
2
3/4
3/8
14-3/16 (360)
2
3/4
3/8
17-1/2 (445)
2
3/4
3/8
17-1/2 (445)
2.5
3/4
3/8
14-3/16 (360)
2.5
3/4
3/8
17-1/2 (445)
2.5
3/4
3/8
17-1/2 (445)
3
3/4
3/8
17-1/2 (445)
3
3/4
3/8
3
3/4
3/8
3
3/4
3/8
17-1/2 (445)
3.5
7/8
3/8
17-1/2 (445)
3.5
7/8
3/8
3.5
7/8
3/8
24-1/2 (622)
4
7/8
3/8
4
7/8
3/8
24-1/2 (622)
4
7/8
3/8
24-1/2 (622)
5
7/8
3/8
24-1/2 (622)
5
7/8
3/8
24-1/2 (622)
3
CAUTION
!
toward condensate drain. Coil casing does not need to be fastened
or screwed to furnace.
to use a transition adapter
(Fig.
Fits Next Smaller Furnace
Width
in. (mm)
Equal
Offset
Overhang
Left
X
X
X
X
X
X
X
X
X
X
X
X
21 (533)
X
X
21 (533)
X
X
X
X
X
X
21 (533)
X
X
X
X
21 (533)
X
X
X
X
X
X
X
X
X
X
(Fig.
2).
3).
90°
Rotation
180°
to Furnace
Rotation
(4" Min.
to
Offset
Transition
Furnace
Right
Required)
X
X
X
X
X
X
ALL
X
Upflow or Downflow
X
X
X
X
X
X
X
X
X
X
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