3
1. GENERAL INFORMATION
Standard cased coils are designed for upflow/
downflow applications or horizontal applications
when used in conjunction with our horizontal
drain pan kit (See page 5). Accessory kits are
not required for factory ready horizontal coils.
Coils are equipped with braze type refrigerant
connections for easy installation.
Read the installation manual supplied
with the outdoor unit for refrigerant line
connection procedure, 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. Check the orifice size of the coil’s expansion
device and confirm that it is suitable for
application with the intended outdoor unit.
NOTE:
Some coils employ a thermostatic
expansion valve (TXV) as the metering
device (See page 4).
H
20
3
/
4
"
B
16
5
/
8
"
W
A
3/4"
13
3
/
8
"
15
5
/
8
"
19
3
/
4
"
Figure 1.
3. Where precise forming of the refrigerant lines
is required, a copper tubing bender designed
for the size lines used is recommended.
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. Coil must be level for proper condensate
drainage.
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.
