Installation Manual

4 484 01 3601 02
Specifications subject to change without notice.
5. Place furnace on top of N−coil casing, or field−supplied
furnace shelf.
ALTERNATIVE
B
MODELS: T036, T042,
T048, AND T060 ONLY
ALTERNATIVE
A
ALTERNATIVE
C
WRONG
Field
Fabricated
Block-off
Plate
2 1/4” (57)
ENW4X Models Only
A08337
Figure 4 − Alternative Coil Mounting Positions
TXV
A thermal expansion valve is utilized in this coil design to
optimize performance and comfort throughout the entire
operating range of the system. Special attention needs to be
taken to the TXV when installing the coil
S Do not overheat valve. Temperatures that exceed 212_F
(100_C) can harm valve performance. Use a wet cloth or heat
sink when brazing.
S Place liquid filter dryer near ID unit to reduce the risk of debris
clogging the valve.
S Make sure TXV bulb is securely fastened and wrapped in the
indentation on vapor line tube.
END4X, ENW4X coils have a factory−installed hard−shutoff TXV
designed only for use with R−410A refrigerant. Use only with
outdoor units designed for R−410A.
NOTE: All TXV’S have preset superheat settings and are not
field−adjustable.
A
(Inside Opening)
Furnace Outlet
Front Bracket
Rear Bracket
Coil Casing Width
Side Bracket
Side Bracket
NOTE: Weld 3 places
in 4 corners
19 1/2” (495)
(Outside)
3/4” (19)
Flanges
(Where Shown)
B
c
ABC
12-3/4 (324) 17-1/2 (445) 2-1/4 (57)
16-1/16 (408) 21 (533) 2-1/4 (57)
19-9/16 (497) 24-1/2 (622) 2-1/4 (57)
17-5/8 (448) 19-3/8 (492) 4 (102)
21-1/4 (540) 23 (584) 4 (102)
23 (584) 24-1/2 (622) 4 (102)
DIMENSIONS Inches (mm)
A09395
Figure 5 − Recommended Transition