Component
Notes
Nut
Tube connection thread is 13/16-16 UN-2A. Strainer recess is Ø 9.5.
Figure 3-3 Motor Cooling Fitting
Flexible Line
1. If the connection is a flexible hose to 3/8 or 1/2 inch flare, the entire hose will require replacement with
the current style.
2. Isolate the compressor and recover the refrigerant according to industry standards. Refer to Section 3.1
Refrigerant Containment on page 41.
3. Source appropriate OEM specified and procured flexible line.
4. Remove the nut from the connection fitting body. Discard the blanking disc, nut, and braze sleeve.
5. Before installation of the OEM supplied flexible line, inspect the O-ring face to ensure it is clean and
free from scratches or other damage. Lightly coat O-ring lube on the O-ring face of the line and install
using two (2) wrenches; one to hold body of fitting and one to tighten the nut. This is done to prevent
over torqueing the fitting in the compressor housing.
NOTE
Flexible lines are not supplied by Danfoss LLC. Selection of appropriate hose and fitting is the responsibility of OEM/installer. This
information is readily available from various sources.
Rigid 1/2 inch copper connection
1. If the connection is 1/2 inch rigid copper, a length of 1/2 inch copper must be brazed into the braze
sleeve.
2. Isolate the compressor and recover the refrigerant according to industry standards. Refer to Section 3.1
3. Remove the nut from the connection-fitting body. Discard the blanking disc. Slide the nut over the
pipe, threaded side toward the outlet.
4. Locate the braze sleeve and clean. Ensure removal of all oil and surface debris. Braze as per the OEM
standard process for copper/steel joint.
5. Place an appropriate length of 1/2 inch copper tube into the braze sleeve. Pretreat/flux joint area as
per the OEM standard procedure. Braze the pipe to the sleeve ensuring the nut can be fitted after
brazing or otherwise position as required. Clean flux and any excess filler from joint.
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