Bid and proposal to change compressor in a General Electric/Trane/American
Standard Heat pump or air conditioning unit.
The compressor on your GE/Trane American
Standard air conditioning or heat pump unit needs to be changed because
the compressor motor has become electrically grounded to the case. While
these compressors are one of the toughest ones in the industry seem to
last forever they eventually fail hopefully later rather than sooner. Later
being thirty years or more, sooner being at least 15 years and rarely less
than 5 years.
With some of the original General
Electric units still in operation today these compressors have an impeccable
track record. The compressors used in these units are a close copy of the
european compressor Manurope division of Danfoss. The Manurope compressors
have a reputation of being the very best that money can buy for a residential
While these compressors cost several
hundred dollars more than a competitive compressor that can be substituted
for the direct replacement. It will require an equal amount of re-piping
and addition of a suction line accumulator that will more than offset the
cost saving of using a standard compressor such as Tecumseh, Bristol, Copeland,
or Carlyle (Carrier).
The cost to replace this compressor
on a typical unit (1.5 to 3 tons) is $875.00 within 15 miles of Fort Meade
Maryland. This includes removal of the refrigerant and adding a liquid
line filter dryer with activated charcoal to remove any moisture incurred
during installation and removal of any acid left in the system from the
electrical failure. A liquid line sight glass is included to show the presence
of any moisture and allow the customer to see the level of refrigerant.
If when testing the system it is discovered that the "burnout" condition
caused an excessive amount of acid a suction line filter dryer will be
required at added cost of $50 to prevent damaged to the motor windings
of the new compressor and another "burnout".
The factory wiring of these units
is usually superb and rarely needs to be replaced. However as good practice
the motor run capacitors will be replaced with the new compressor.
To start work a deposit of $500.00
is required for materials and the balance of $375.00 upon completion of
the work and a leak check of the refrigerant fittings.
This work will be done in fair weather
(daytime, temperature above 30 degrees F and no precipitation). If inclement
weather should present itself during the job the unit will be secured to
protect against moisture. The job will resume again when fair weather presents
itself at no extra cost to the customer.
Scott Meenen 240-460-3820
Read more that I have written on this subject at
the freegas page and the question
To find out more about fan and blower motors click
here To find out what controls the fan in the heat
mode or proper settings To get parts look to Grainger
or Johnstone. To solve a problem use the link to the form below.
Written By: Scott Meenen
N3SJH of: G&S MECHANICAL SERVICES. Specializing in Mechanical, Controls
and Electrical Modifications Of
Heating, Air conditioning, Refrigeration,
Ice Production and Food preservation.
Anything having to do with Heat and Energy.
Serving Maryland, DC, and Northern