4
Connecting the Linesets
1. Route and cut both lineset tubes to proper length in
accordance with the outdoor unit specifications. Verify
the ends are round, clean, and free of any burrs.
2. Cut off the fitting on the 3/8” line of the coil. Swage as
needed to fit the line set.
3. Connect the suction and liquid lineset tubes.
CAUTION:
It is recommended that a wet rag be wrapped
around the suction line in front of the close
off plate before applying heat. Failure to keep
components cool during brazing may result
in structural damage, premature equipment
failure, or possible personal injury.
4. Braze the individual connections with dry nitrogen
flowing through the joints. This will prevent internal
oxidation and scaling from occurring.
IMPORTANT: To prevent internal oxidation and scaling
from occuring, braze all connections with dry nitrogen
flowing through the joints.
5. Wrap the refrigerant lines with pressure sensitive
neoprene or other suitable material especially where
the lines enter the opening in the sheet metal.
6. Evacuate the system of moisture and non-condensables
to prevent low efficiency operation or damage to the
unit. The suggested range of evacuation is 250 - 500
microns.
7. Charge the system with refrigerant.
Please Refer to
the outdoor unit installation manual for additional
charging instructions
.
8. Check the system for leaks, including the lineset and
the brazed joints.
NOTE:
Apply a soap and water solution on each joint or
union with a small paintbrush. If bubbling is observed,
the connection is not adequately sealed.
9. Properly dispose of all removed parts.
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 and looped to form a trap.
IMPORTANT:
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 not 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.
Summary of Contents for C84DA Series
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