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3
Installation
WARNING
High pressure! Injury to skin and eyes possible! Be careful when
opening connections on a pressurized item.
3.1
Compressor handling
3.1.1 Transport and storage
WARNING
Risk of collapse! Personal injuries! Move compressors only with
appropriate mechanical or handling equipment according to weight. Keep in
the upright position. Respect stacking loads according to Figure 3. Check the
tilting stability and if needed take action to ensure the stability of the stacked
loads. Do not stack single boxes on top of each other. Keep the packaging
dry at all times.
Respect the maximum number of identical packages which may be stacked on one
another, where "n" is the limiting number:
Transport: n = 1
Storage: n = 2
Figure 3: Maximum stacking loads for transport and storage
The compressor tilt angle should not be more than 30° during transport and handling. This will
prevent oil from exiting through the suction stub. A tilt angle of maximum 45° is allowed for a
very short time. Tilting the compressor more than 45° might affect its lubrication at start-up.
The suction stub on compressor models ZHI27K1P to ZHI46K1P is located at low level. Oil
might flow through the suction stub and get trapped in the system. To avoid this, Emerson
Climate Technologies strongly recommends mounting the suction piping turning vertically
upward from the compressor connection. This will ensure that the oil gets back into the oil sump
even when tilting at 30°.
3.1.2 Positioning and securing
IMPORTANT
Handling damage! Compressor malfunction! Only use the lifting eyes
whenever the compressor requires positioning. Using discharge or suction
connections for lifting may cause damage or leaks.
The compressor should be kept vertical during handling.
The discharge connection plug should be removed first before pulling the suction connection
plug to allow the dry air pressure inside the compressor to escape. Pulling the plugs in this
sequence prevents oil mist from coating the suction tube making brazing difficult. The copper-
coated steel suction tube should be cleaned before brazing.
The plugs must be removed as late as possible before brazing so that the air humidity does not
affect the oil characteristics
As oil might spill out of the suction connection located low on the shell, the suction connection
plug must be left in place until the compressor is set into the unit.
No object, eg, a swaging tool should be inserted deeper than 51 mm into the suction tube or it
might damage the suction screen and motor.
3.1.3 Installation location
Scroll compressors are capable of operating correctly with compressor ambient humidity within
30% to 95% and at altitudes up to 1000 meters. For correct operation the compressor ambient
air temperatures have to be within -40°C to 60°C and the compressor PS and TS have to be
respected at all times during operation and at a standstill.
Ensure the compressors are installed on a solid level base. For single compressor application,
the compressor tilt angle during operation should not be more than 15° to allow adequate
8
C6.2.26/1013-1116/E
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