© 2018 Emerson Climate Technologies, Inc.
9
AE4-1431 R1
3. Installation
High pressure! Injury to skin and eyes possible!
Compressors
are
delivered
pre-charged
with
pressurized dry air. Be careful when opening
connections.
3.1. Transport and storage
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.
NOTE: The compressor is pre-charged with dry air
to avoid any moisture contamination.
3.2. Positioning and securing
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, e.g., a swaging tool should be inserted into
the suction tube or it might damage the suction screen
and motor.
3.3. Installation location
These compressors shall be installed only in a non-
explosive atmosphere.
Scroll compressors are capable of operating correctly in
ambient humidity from 30% to 95% and at altitudes up
to 6562 feet (2000 meters). For correct operation, the
ambient air temperature must range from -31°F to 122°F
(-35°C to 50°C) and the compressor Maximum
Allowable Operation Pressure shall be respected at all
times during operation and at standstill.
Ensure the compressors are installed on a solid level
base. For multiple-compressor parallel configurations,
the compressors must be positioned completely
vertically on a totally horizontal surface or rail.
3.4. Compressor mounting parts
The compressors are designed to be mounted on
vibration absorber grommets. The grommets dampen
the start-up surge of the compressor and minimize
sound and vibration transmission to the compressor
base during operation. The metal sleeve inside is a
guide designed to hold the grommet in place. It is not
designed as a load-bearing member, and application of
excessive torque to the bolts can crush the sleeve. Its
inner diameter is approximately 0.335 inches (8.5 mm)
to fit, e.g., an M8 screw. The mounting torque should be
CAUTION
CAUTION
CAUTION
