40MULA: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Refrigerant Metering Device
These coils have a factory installed hard shut-off 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 field non-
adjustable.
Condensate Drain Line Connection
The coil is designed to dispose of accumulated water through built-in
condensate drain fittings. It is recommended that PVC fittings be used on
the condensate pan. Do not over-tighten. Finger tighten plus 1-1/2 turns.
Be sure to install plastic plug in the unused condensate drain fitting. Two
3/4 inch female threaded pipe connections are provided in each coil
condensate pan.
A trap is not necessary on the condensate line if on the supply air side of
furnace. Consult the local codes for additional restrictions or precautions.
If local codes require a trap, then the following guidelines are suggested
to assure proper drainage. Install a trap in condensate line of coil as close
to the coil as possible. Make trap at least 3 inches (76 mm) deep and no
higher than the bottom of unit condensate drain opening.
Pitch condensate line 1 inch (25.4 mm) for every 10 ft. of length to an
open drain or sump. Ensure that the outlet of each trap is below its
connection to condensate pan to prevent condensate from overflowing the
drain pan. Prime all traps, test for leaks, and insulate traps and lines if
located above a living area.
Failure to follow this caution may result in product damage.
DO NOT BURY MORE THAN 36 IN. OF REFRIGERANT TUBING
IN GROUND. If any section of tubing is buried, there must be a 6 in.
vertical rise to the valve connections on the outdoor unit. If more than the
recommended length is buried, refrigerant may migrate to cooler buried
section during extended periods of unit shutdown, causing refrigerant
slugging and possible compressor damage at start-up.
CAUTION
Failure to follow this caution may result in property damage. When
installing over a finished ceiling and/ or living area, install a field-
fabricated secondary condensate pan under the entire unit.
CAUTION
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