Specifications

61
© 2012 Emerson Climate Technologies, Inc.
Printed in the U.S.A.
AE8-1368 R2
• Remove terminal box grounding strap
• Remove the compressor motor sensor leads
• Disconnect the compressor voltage sensing
leads
• Remove terminal box anchor screws holding
the box to the compressor
4. Remove the side cover to access the high pressure
control.
5. Unplug leads to high and low pressure switches,
temperature probe, and unloader (if present).
6. Remove access cover on control module (two
screws).
7. unplug all harness connections at the control
module.
8. Unplug RS-485 communications plug.
9. Unplug the harness to the oil pressure switch.
10. Lift off terminal box with the wiring harness
attached.
11. Remove the two nuts securing the control module
mounting bracket to the compressor
12. Remove control module from the compressor.
13. Remove the compressor from the rack using proper
tools and procedures to assure safety, and to
prevent damage to the rack or other compressors.
12.0 Installation of the Compressor (4D)
1. Mount the new compressor in the rack, lifting
and maneuvering the compressor in a manner to
prevent personal injury and damage to the other
compressors on the rack.
2. Transfer the temperature sensor and pressure
control fi ttings to the head and body of the new
compressor. Use of a thread sealing compound is
recommended.
3. Install high pressure cutout switch (RED DOT
- 360 psi) on the head, and low pressure cutout
switch (WHITE DOT - 3 psi) on the compressor
body. Double Check Positions!
4. Install the terminal box on the compressor. Secure
to the compressor using the four anchor screws.
5. Inside the terminal box
• Connect compressor power terminal lugs
• Connect terminal box grounding strap
• Connect motor sensor leads
• Connect the compressor voltage sensing
leads
6. Install the control module mounting bracket on
the compressor.
7. Reconnect the pressure controls to wiring harness
(HPCO-RED leads and LPCO-BLUE leads).
8. Reconnect all plugs at the control module
including the RS-485 communications plug.
9. Reconnect the harness to the oil pressure sensor.
10. Reconnect the harness to the head temperature
probe and unloader (if present).
11. Reinstall the side cover and secure with four
screws
12. Replace the terminal box cover and secure with
two screws.
13. Reinstall the control module access cover and
secure with two screws.
14. Apply power to the compressor and CoreSense
Diagnostics modules.
13.0 Removal of the compressor (6D)
1. Turn off power to the compressor, crankcase
heater, and CoreSense Diagnostics modules.
2. Isolate the compressor and evacuate per accepted
industry practice.
3. Inside the terminal box
• Remove compressor power terminal lugs
• Remove terminal box grounding strap
• Remove the compressor motor sensor leads.
• Disconnect the compressor voltage sensing
leads
• Remove terminal box anchor screws holding
the box to the compressor
4. Remove access cover on control module (two
screws).
5. Unplug all harness connections at the control
module including the RS-485 communications plug.
6. Disconnect the oil pressure and head temperature
harness from the compressor.
7. Remove side cover and control module mounting
nuts (6x).
8. Remove the side cover and control module as an
assembly to access the high and low pressure
controls.
9. Unplug leads to high and low pressure switches,
and unloaders (if present).
10. Lift off terminal box with the wiring harness
attached.
11. Remove the compressor from the rack using proper
tools and procedures to assure safety, and to
prevent damage to the rack or other compressors.