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1. GENERAl INFORMATION
C(*)DA coils are designed for upflow and down-
flow furnace/air handler applications.The C(*)DA
coils are furnished with down-turned refrigerant
connections, ready for brazing.
Read the installation manual supplied with the
outdoor unit for refrigerant line connection pro-
cedure, required line sizes, and other information
pertaining to the system installation.
1.
Make certain that the air delivery of the
furnace/air handler is adequate to handle
the static pressure drop of the coil, filter, and
duct work.
2.
In orifice style models check the orifice size
of the coil's expansion device and confirm
that it is suitable for application with the
intended outdoor unit.
3.
Where precise forming of the refrigerant
lines is required, a copper tubing bender
designed for the size lines used is recom-
2. COIl SPECIFICATIONS
C5DA
Nominal (2)
Capacity BTUH
Nominal Airflow
CFM
Width (in.)
Height (in.)
Depth (in.)
Connections
liquid line
Suction line
Metering Device
C3DA
Nominal (2)
Capacity BTUH
Nominal Airflow
CFM
Width (in.) W
Height (in.) H
Depth (in.) D
Connections
Liquid Line
Suction Line
Installed Orifice
Size (in.)
(use for 024)
Extra Orifice
(in.) supplied
(use for 030)
T25
T30
T36
24,000 30,000 36,000 36,000 42,000 42,000 48,000 48,000 48,000 60,000
800
1000
1200
18 1/8
18 1/8
18 1/8
20
20
20
19 1/2
19 1/2
19 1/2
3/8
3/8
3/8
3/4
3/4
3/4
TXV
TXV
TXV
0.060
0.075
(use for 042)
0.063
mended. Avoid sharp bends and contact of
the refrigerant lines with metal surfaces.
4.
Refrigerant lines should be wrapped
with pressure sensitive neoprene or other
suitable material where they pass through
the raw edges of holes.
5.
The coil enclosure (if provided) and suction
line must be insulated as needed to prevent
condensate from forming and causing
property damage.
6.
Coil must be level for proper conden-
sate drainage.
7.
Do not remove seals from the coil until the
tubing connections are ready to be made.
NOTE: Optional cooling/heating equipment must
be properly sized and installed in accordance
with the furnace manufacturer's specifications
and approved recommendations. "Heating only"
furnace air circulators may have to be replaced
with multi-speed "Heating/Cooling" blowers to
upgrade the air delivery (CFM) when an add-on
coil is installed. Refer to Coil Specifications for
recommended CFM and allow for pressure drop
across the coil and filters.
T37
T41
T43
1200
1400
1400
18 1/8
18 1/8
18 1/8
20
20
24
19 1/2
19 1/2
19 1/2
3/8
3/8
3/8
3/4
3/4
3/4
TXV
TXV
TXV
1.
2.
N/A
N/A
T47
T48
T49
1600
1600
1600
18 1/8
18 1/8
20
24
19 1/2
19 1/2
19 1/2
3/8
3/8
3/4
3/4
TXV
TXV
TXV
Refer to sales specification sheets
for Listed/Certified combinations
of equipment and required acces-
sories.
Refer to the current ARI Direc-
tory for certified ratings of split
systems.
T60
2000
21
21
28
28
19 1/2
3/8
3/8
3/4
3/4
TXV
3
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