Hussmann Ingersoll Rand, User Manual

Page: 330 / 346

Instructions for Removing Copeland 4D
1. Turn off control power and main power to the compressor. Check both the
control circuit and the main power from the compressor breaker with a meter to
insure the power has been disconnected.
2. Disconnect and remove all wires from the compressor terminal box.
NOTE: tag control wires for identification to the controls. (See Figure 27, page 12 to
determine the wires that need to be marked.)
3. Close suction and discharge valves. Close oil supply line and any equalizing
lines. Evacuate refrigerant from compressor using approved recovery
methods. Disconnect the discharge valve using a 3/4” wrench. Disconnect the
suction valve using a 15/16” socket. Disconnect all remaining lines from the
compressor.
4. Remove all components that are attached to or obstructing the removal of the
compressor, such as head fans, oil failure, high and low pressure controls.
5. IMPORTANT: Count the number of spacer washers between the
compressor feet and the mounting plate. The same
number of washers must be used when installing the IR Impact
™
compressor.
6. Remove the 4D compressor.
7. Remove all fittings that will be required for installation of the IR Impact
™
compressor.
Figure 1
8. Remove oil float by tilting the compressor
away from the oil sight glass. Unbolt the
oil float assembly, leaving the compressor
tilted until the sight glass from the IR
Impact
™
can be installed on the 4D
compressor.
(3D compressor shown for demonstration
purposes only.)
Hussmann Aftermarket page 2 of 18 4/7/2006