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Example:
45 ft of line set
45 x 0.72 oz = 32.4 oz
32.4 oz + condenser charge = Total charge
If the line set and the main refrigeration unit are
connected, you must also add that refrigerant
charge.
For units with part numbers beginning with “TS”,
charge according to the nameplate charge on the
refrigeration unit. That is enough refrigerant for up
to 100 feet of tubing plus the Multiplex condenser.
If you have another brand condenser, please add
additional charge for the condenser (example: up
to three pounds for a MAC condenser).
3. Connect line sets to the proper discharge and
liquid mating connectors on the refrigeration unit
using quick connects. Refer to the section titled
“Aeroquip Connection” in these instructions.
4. Be sure to observe proper refrigeration
techniques when running the line set.
A. The discharge line must loop down at the
compressor end to trap liquid from returning
to the compressor, unless you are coiling
refrigeration tubing behind the unit.
B. The discharge line must loop above
discharge connector at the condenser to
resist liquid returning to the compressor. Any
excess tubing must be removed from the line
set before the line set is connected to any
equipment.
C. The discharge line must have one P trap
every 25 ft (7.6 m) of vertical rise to allow oil
to stair-step up to the condenser and
eventually return to the compressor.
NOTE: When the connections are made, the seal in
the couplings are broken, and if removed for any
reason, the refrigerant charge will be lost.
STH13_Tech.book Page 64 Wednesday, September 15, 2010 3:20 PM