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IMPORTANT NOTE:
To prevent internal oxidation and scaling from occuring,
braze all connections with dry nitrogen flowing through
the joints.
9. Install the grommet in the door cutout. Verify the grommet
is evenly aligned around the tube and securely positioned
in the door cutout.
Condensate Drain
CAUTION:
The coil must be level to ensure proper condensate
drainage. Improper condensate disposal may result
in structural damage, premature equipment failure,
or possible personal injury.
• Methods for disposing of condensate vary according
to local codes. Refer to local codes or authority having
jurisidiction for restrictions and proper condensate disposal
requirements.
• All condensate pans have primary and secondary drain
connections to meet FHA requirements. If the application
is located in or above a living space where damage may
result from condensate overflow, a separate 3/4 inch drain
must be provided from the secondary drain connection and
a secondary drain pan must be installed under the entire
unit. Run secondary drain lines to a place where they are
noticeable if used.
• The coil condensate pan is designed with 3/4" NPSC drain
connections. Use a PVC or similar material fitting to attach
the drain line to the pan. NOTE: The fitting should be hand
tightened only. Overtightening may crack the drain pan
and cause condensate to leak.
• The drain pan MUST be drained with field supplied tubing
or PVC pipe and adequately trapped.
IMPORTANT NOTE TO INSTALLER
Failure to install a trap may result in condensation
overflowing the drain pan, resulting in substantial
water damage to surrounding area.
• Prime the trap with water. Insulate the drain if it is located
in an unconditioned space, and test the condensate line
for leaks. Consult local codes for additional restrictions or
precautions.
• Route the lines to a suitable drain, avoiding sharp bends
and pinching of the lines. The drain should maintain a
minimum horizontal slope in the direction of discharge of
no less than 1" vertical for every 10 ft of horizontal run.
• During system checkout, inspect the drain line and
connections to verify proper condensate drainage.
Air Filter
Air filters are not supplied as an integral part of this coil;
however, an air filter kit is available. Refer to the Replacement
Parts List for available part numbers.
The filter must be installed upstream of the coil and inspected
frequently. When the filter becomes clogged with dust or
lint, it should be replaced (disposable type) or cleaned
(washable type). It is recommended that filters be inspected
6
and replaced at least twice during the year. Generally it is
best to replace or clean the filters at the start of each heating
and cooling season.
COMPLETING THE INSTALLATION
1. Check the system for leaks, including the lineset and the
brazed joints.
2. Evacuate the system of moisture and non-condensables
to prevent low efficiency operation or damage to the unit.
The suggested range of evacuation is 350 - 500 microns.
3. Charge the system with refrigerant. Please Refer to the
outdoor unit installation manual for additional charging
instructions.
4. Install the coil access door (if removed).
5. Properly dispose of all removed parts.
6. Apply power to the unit.
MAINTENANCE & SERVICE
WARNING:
ELECTRICAL SHOCK, FIRE OR
EXPLOSION HAZARD
Failure to follow safety warnings exactly could result
in serious injury or property damage.
Improper servicing could result in dangerous
operation, serious injury, death or property
damage.
• Before servicing, disconnect all electrical power
to the equipment.
• When servicing controls, label all wires prior to
disconnecting. Reconnect wires correctly.
• Verify proper operation after servicing.
CAUTION:
Do not operate the system without a suitable filter
in the return air duct system. Always replace the
filter with the same size and type.
To ensure optimum performance and to minimize possible
equipment failure, the following maintenance tasks should
be performed periodically on this equipment:
1. The air filter installed with the system should be checked
and cleaned or replaced twice per year.
2. Check the coil, drain pan, and condensate drain line for
cleanliness at the start of each heating and cooling season.
Clean as needed.
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