40
Pre-Start Checkout
Prestart procedures
WARNING - Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect
power before servicing could result in death or serious injury.
When installation is complete, but prior to putting the unit into service, the following prestart procedures must be
reviewed and verified correct. Fill in
Table 10 RTXC XE Pre-Start Check List.
Inspect all wiring connections to be correct and tight.
NOTICE - Equipment Damage
!
Inspect and confirm all the terminal blocks and the power line connections (disconnects, terminal block,
contactors, compressor junction box terminals and so forth) clean and tight to avoid terminal
connections overheating and compressor motor under voltage and eventually fail.
Verify that all valves are in right position. Except the service valve of receiver should be closed (shown in
), all other valves should be fully opened prior to unit startup, including angle valve of
compressor oil line (face to the valve stem, turning the stem clockwise to close, turning the stem counter-
clockwise to open); liquid pipe and oil return ball valves (open/close status shown in
); maintenance
valves of safety valve for oil separator and receiver (shown in
); and inlet and outlet field- supplied
valves of water system.
WARNING - Containing Refrigerant!
Service valve of safety valve can only be close when the safety valve needs to be removed for annual
check; otherwise, it should always be fully open.
Unit should be powered off during the safety valve annual check.
1.
2.
Figure 17-1 Receiver service