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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. Chec k
the tilting stability and if needed take action to ens ure t he s tabilit y of t he
stacked loads. Do not stack single boxes on top of eac h other. K eep t he
packaging dry at all times.
Respect the maximum number of identical packages whic h may be s t ac ked on o ne
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 hand ling. This will
prevent oil from exiting through the suction stub. A tilt angle of maximum 45° is allowed f or a v ery
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
f low through the suction stub and get trapped in the syst em. To avoid t his, Emerson s trongly
recommends mounting the suction piping turning vertically upward f rom 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 lif ting eyes
whenever the compressor requires positioning. Using discharge o r s uction
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 t his sequenc e
prevents oil mist from coating the suction tube making brazing difficult. The c o pper -coat ed s teel
suction tube should be cleaned before brazing.
The plugs must be removed as late as possible before brazing so that the air humidit y does no t
af f ect 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 int o t he s uct ion t ube as it
might damage the suction screen and motor.
3.1.3 Installation location
Scroll compressors are capable of operating correctly with compressor am bient 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 to 60 °C and the compressor PS and TS have to be res pected
at all times during operation and at a standstill.
Ensure the compressors are installed on a solid level base. For single compressor application, t he
compressor tilt angle during operation should not be more than 15° to allow adequate lubric ation.
8
AGL_HP_ST_ZHK1P_EN_Rev00
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