Tecumseh Argus, Installation Instructions Manual

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©2019 Tecumseh Compressor Company LLC. All rights reserved. TPC Part #71511 | Rev A 05/13/2019 www.tecumseh.com
SYSTEM CHARGING
Failure to properly charge the system can result in serious injury or death from explosion or fire.
Follow these precautions when charging a system:
• Do not operate the compressor without charge in the system.
• Operating the compressor without a charge in the system can damage the hermetic terminal. As always, to
avoid serious injury or death from terminal venting with ignition, never energize the compressor unless the
protective terminal cover is securely fastened.
• Use proper refrigerant.
– Use only the serial label refrigerant when charging the system. Using a different refrigerant can lead to
excess system pressure and an explosion. Use of a refrigerant other than the serial label refrigerant will
void the compressor warranty.
• Do not overcharge a refrigeration or air conditioning system.
– Overcharging a refrigeration or air conditioning system can result in explosion. To avoid serious injury
or death, never overcharge the system. Always use proper charging techniques. Limit charge amounts
to those specified on the system equipment serial label or in the original equipment manufacturer’s
service information.
– Overcharging the system immerses the compressor motor, piston, connecting rods, and cylinders
in liquid refrigerant. This creates a
hydraulic block preventing the
compressor from starting.
– Continued supply of electricity to
the system causes heat to build in the
compressor. This heat will eventually
vaporize the refrigerant and rapidly
increase system pressure. If, for any
reason, the thermal protector fails to
open the electrical circuit, system
pressure can rise to high enough
levels to cause a compressor
housing explosion.
Gauges
To System
Regulating
Valve
Dry nitrogen cylinder with
attached pressure gauges
needed for pressure testing
for leaks
and purging.