4 Starting up & Operation
Before commissioning, insure that all Rotalock valves and other valves on the condensing
ging the oil with the one of the following oil types:
Cool™ condensing units equipped with an oil separator
if necessary.
croll compressors, like several other types of compressors, will only compress in one
ase compressors
since they wil ase compressors will
s internal protection and checks the phasing. The module will trip in case of reverse
tation.
OMTQ-76, OMTQ-90(D),
es when the
ompressor is energized makes verification of proper rotation direction possible. There is
n for a short period of time (less than one hour), but
il may be lost. After several minutes of operation in reverse, the compressor's protection
system will trip due to high motor temperature. However, if allowed to repeatedly restart
and run in reverse without correcting the situation, the compressor will be permanently
damaged.
unit are fully opened.
4.1 Charging Procedure
4.1.1 Refrigerant charging procedure
It is recommended to charge the unit with refrigerant into the receiver, via the Rotalock
service valve.
Alternatively, it could be also done by charging gas through the suction valve of the
compressor.
4.1.2 Oil charging procedure
Copeland EazyCool™ condensing units are supplied only with a compressor oil charge.
After commissioning, oil level should be checked and recharged if necessary.
NOTE: Oil level should be approx. half sight glass
Copeland recommends char
ICI Emkarate RL 32 CF
Mobil EAL Artic 22 CC
Charging is done through the Schraeder valve located on the suction Rotalock valve.
Two compressor Copeland Eazy
are delivered with a small oil can to add oil,
4.2 Rotation direction of scroll compressors
S
rotational direction. Direction of rotation is not an issue with single-ph
l always start and run in the proper direction. Three-ph
rotate in either direction depending upon phasing of the power. Since there is a 50-50
chance of connecting power in such a way as to cause rotation in the reverse direction, it
is important to include notices and instructions in appropriate locations on the
equipment to ensure proper rotation direction when the system is installed and
operated.
4.2.1 Units OMQ-56 toOMQ-110, OLQ-24V to OLQ-48V
Compressors assembled on above units are equipped with the INT69SCY module, which
acts a
ro
4.2.2 Units OM(Q)-15 to OM(Q)-45(D), OMTQ-60(D),
OLTQ-26V & OLTQ-36V
Please follow the underneath procedure:
Observing that suction pressure drops and discharge pressure ris
c
no negative impact on durability caused by operating three-phase Copeland Scroll™
compressors in the reversed directio
o
28 Part No: 3125713 C6.1.2/0105-0705/E
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