AGL_Unit_LOCU_EN_Rev00
35
Figure 34: Oil charging service ports
The compressors in OMTE-152D and OLTE-82D units are equipped with an OM3 TraxOil oil
management device from Alco Controls. The compressors will be switched off in case of insufficient
oil level. The TraxOil will inject an adequate quantity of oil if required. It is important to have a
suf ficient quantity of oil in the system to ensure proper functionality of the oil management system.
NOTE: OMTE & OLTE units are equipped with an oil separator. This separator is pre-charged
with 3.8 litres of oil. The oil level in the oil separator sight glass should always be up to top
end.
4.3 Rotation direction of scroll compressors
Scroll compressors, like several other types of compressors, will only compress in one rotational
direction. Three-phase compressors are protected against wrong rotation field by the unit controller.
4.4 Maximum compressor cycle
Maximum permitted starts per hour: 10.
The f actory setting of the XCM25D system controller takes
into account the maximum permitted starts and stops of the compressor and also controls the running
time and minimal downtime. It is recommended to change these settings only in exceptional cases.
4.5 Checks before starting & during operation
IMPORTANT
Liquid valves not fully opened! Liquid trap!
Both valves should be f ully
opened on the liquid line in order to prevent liquid trapping.
Before a system runs for the first time:
▪
Check that the valves on the liquid line are f ully opened.
▪
Set the essential parameters of the electronic controller in the programming level 1 (ref rigerant
type, compressor cut-out/cut-
in settings, condensing fan setpoint….) according to the required
application.
▪
Carry out visual inspection.
▪
Check f an rotation before starting compressors and turn fans on manually.
▪
Perf orm control tests to ensure all controls operate correctly, including any manual backup system
(if applied).
▪
Check also the following:
✓
Documentation for the system and its marking, especially pressure equipment.
✓
Installation of safety devices.
✓
Set pressure of all safety devices and other pressure cut-outs.
✓
Compressor and oil reservoir oil levels.
✓
Cores f itted in filter dryers.
✓
Pressure test records.
✓
All valves open/closed as required for operation.
Summary of Contents for Copeland OLE-49
Page 5: ......
