NOTICE
Risk of compressor oil contamination with moisture. Can cause equipment damage.
We recommend front-seating the compressor service valves. Front-seating the valves keeps
the nitrogen or refrigerant charge in the compressor and prevents moisture from
contaminating the compressor oil.
16. Cut the insulation and pull it back from the piping.
17. Cut the refrigerant piping with a tubing cutter; if there is no Schrader fitting, let the nitrogen
bleed out before cutting all the way through the pipe.
NOTE: We do not recommend un-sweating refrigerant connections.
18. Immediately cap and seal all piping that has been cut, including the suction and liquid lines.
Removing Compressor Assembly for Upflow DA080 and DA085
1. Secure the compressor wire harness to the compressor assembly.
2. Remove the 10 thread-cutting bolts holding the compressor section assembly to the filter, the
electric-box assembly and the blower and coil assembly. There are five bolts in the front, four in
the back and one on the top at the middle of the unit.
a. Begin removing bolts at the bottom of the unit and progress toward the top. Use this
method for the front and back bolts.
b. Stabilize the compressor section before removing the top, middle bolt.
NOTICE
Risk of improper handling. Can cause compressor and/or piping damage.
The compressor section is top-heavy and has a small base. It must remain upright. Do not lay
the compressor section on its side during or after removing it from the DSE.
NOTE: We recommend using piano jacks when moving this section.
Removing Blower and Electric-box forUpflow DA080 and DA085
1. Remove the access plate from right end of unit. This will provide a place to grasp the blower
and electric-box assembly and move it. Remove the coil access plates on the left side of the
unit for clearance when brazing the suction and discharge lines.
2. Remove the thread-cutting bolts holding the unit sections together; there are four on the left
and four on the right.
3. Separate the unit sections with caution.
NOTICE
Risk of improper handling. Can cause damage to the DSE.
• The blower and electric-box section should be moved forward and set on the floor. We
recommend using four people to remove this section.
• The filter and coil assembly must remain upright. The coil is not secured to the filter and
coil assembly.
• Secure the coil to the bottom section with straps or a similar method before moving the
section.
4. Move each section of the DSE to the installation location.
B.7 Reassembling Upflow DA080 and DA085
1. Replace the top section. Make sure to clear the Schrader valves on the coil header.
2. Reattach the top section using thread-cutting bolts; there are four on each side. Torque the
bolts to 225 in-lb. (25 Nm)
3. Reinstall the motor access plate. Do not replace the left end coil access plates until brazing is
finished.
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