6. Clean the O-ring face of the sleeve ensuring no scratches or debris are present. Apply a light amount of
O-ring lube to the face of the sleeve and assemble to the fitting. Tighten the nut using two (2)
wrenches; one (1) to hold body of fitting and one (1) to tighten the nut. This is done to prevent over
torqueing the fitting in the compressor housing.
Rigid 3/8 inch copper connection - TTS300/TGS230
l
If the connection is 3/8 inch rigid copper, a length of 1/2 inch copper must be brazed into the braze
sleeve as described above. A transition fitting should be brazed to connect the 3/8 to 1/2 inch
tubes. Follow the procedure as noted above in Rigid 1/2 Copper Connection section.
Important
l
It should be noted that the inclusion of a strainer within the connection body is intended as a last
resort backup only to prevent ingress of debris that may block solenoid orifices or restrict motor
and power electronics cooling. It is not a substitute for a correctly sized full-flow filter drier. A filter
drier must be installed in all instances. If it is found that a filter drier is not installed, and the fitting
is changed due to a field replacement of the compressor, a filter drier must be included in the line
modification.
l
If it is required to remove the fitting from the housing for any reason, clean the O-ring, fitting and
housing threads, and apply a small amount of O-ring lube before reassembly.
3.5 Exterior Connection Torque Specifications
Table 3-2 Exterior Connection Torque Specifications
Description
Thread Depth (mm)
Nm
Ft. Lb.
In.Lb.
Power Cable Nut (excluding TTS300/TGS230 compressors)
-
21
15
186
Input Pressure Screws (TTS300/TGS230 compressors)
-
20
15
177
Motor Cooling Body, E-housing and later
-
25
18
221
Motor Cooling Compression Nut, E-housing and later
-
11
8
97
Ground Post, Top Nut
-
10
7
89
Ground Post, Second (Jam) Nut
-
7
-
62
Ground Post, Lower Nut
-
20
15
177
Suction Flange Fastener
34.5
75
55
664
Discharge Flange Fastener
20
32
24
283
Economizer Flange Fastener
20
32
24
283
Schrader Valve
-
15
11
133
Base Mounting Bolt
24
22
16
195
Cover Fastener
-
1.5
-
13
Compressor Mounting Fastener
-
14
10
124
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