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tubing, you must cut out the excess before
connecting the ends. When cutting the tubing, you
must first evacuate the refrigerant (line sets have
a positive refrigerant holding charge of two to
three ounces). After shortening and welding the
tubing together again, you must evacuate the
tubing to 250 microns. Then recharge the tubing
with 4 ounces of appropriate refrigerant.
CONNECTING THE PRE-CHARGED
REFRIGERATION LINES
NOTE: Before connecting the pre-charged
refrigeration lines, the refrigeration unit must be
properly located, leveled, and the water bath filled 1"
(2.5 cm) below the installed drain pipe.
1. Attach low side gauge set to service port on each
line set to verify positive pressure within the line
set.
NOTE: If for any reason the lines are damaged and/or
leaking or the lines no longer charged, refer to “How to
Re-charge the Line Sets”. If the line set is too long for
the application, refer to “How to Shorten the Line
Sets”.
2. Always make the connections at the condenser
first, using the end of the pre-charged lines with
the valve ports.
3. Connect the condenser side with the quick
connectors (discharge and liquid) up to
condenser. Refer to the section titled “Aeroquip
Connection” in these instructions.
4. Connect the refrigeration unit side with the quick
connects (discharge and liquid). Make sure to
provide a discharge trap at back of refrigeration
unit, or bend discharge line down 12" and then up
smoothly (no kinks) to provide a trap.
!
Caution
Excess refrigeration tubing must be properly
cared for before being connected to either the
remote condenser or the refrigeration unit.
STH13_Tech.book Page 62 Wednesday, September 15, 2010 3:20 PM