2
Figure 2
Horizontal Right Application
3.
Using the hardware and brackets provided, attach the coil
to the furnace then attach the plenum to the coil (Figure 3).
COIL
PLENUM
FRONT BRACKET
ACCESSORY
FURNACE
TOP & BACK
BRACKET
ACCESSORY
COIL
FURNACE
PLENUM
TRANSITION
MAX 10° ANGLE
ACCESSORY
TOP & BACK
ACCESSORY
FRONT BRACKET
COIL
FURNACE
BRACKET
PLENUM
(Z-BRACKET WITH NARROW FURNACE)
Figure 3
Furnace, Coil and Plenum Installation
COIL
FURNACE
PLENUM
DUCT BOARD, SHEET
METAL OR OTHER
FILLER MATERIAL
Figure 3a
Incorrrect Furnace, Coil and Plenum Installation
Using tape or mastic seal between the coil and furnace and
the coil and plenum.
Condensate Drain Piping
When coils are installed above ceilings, or in other locations
where damage from condensate overflow may occur, it is
MAN-
DATORY
to install a field-fabricated auxiliary drain pan under
the coil cabinet enclosure. Drain lines from the auxiliary pan
must be installed and terminated so that the homeowner can
see water discharges.
The coil drain pan has a primary and an optional secondary
drain with 3/4" NPT female connections. The connectors re-
quired can be 3/4" NPT male either PVC or metal pipe and
should be hand tightened to a torque of no more than 37 in-lbs.
to prevent damage to the drain pan connection. An insertion
depth between .355 to .485 inches (3-5 turns) should be ex-
pected at this torque. If using a copper drain line, solder a
short piece of pipe to the connector before installing a drain
fitting. DO NOT over torque the 3/4” copper connector to the
plastic drain connection.
1. Ensure drain pan hole is NOT obstructed.
2. To prevent potential sweating and dripping on finished
space, it may be necessary to insulate the condensate
drain line located inside the building. Use Armaflex
®
or
similar material.
A Secondary Condensate Drain Connection has been provided
for areas where the building codes require it. Pitch the drain
line 1/4" per foot to provide free drainage. Insulate drain lines
(primary and secondary) located inside the building to prevent
sweating. Install a condensate trap in the primary drain line to
ensure proper drainage. If the secondary line is required, run
the line separately from the primary drain and end it where it
can be easily seen.
NOTE:
Water coming from this line means the coil primary
drain is plugged and needs clearing.
