Passive Systems - Danfoss MLM116 Application Manuallines

Application Guidelines

Passive systems

42
FRCC.PC.035.A4.02
Oil management concept
A passive system is an oil management system
without any measurement or control devices
such as oil level regulators and oil controllers.
By contrast, a solution equipped with such
measurement or control devices is called an
active system.
Non-return valve
Oil equalization
Compressor 1
Suction header
From evaporator
Danfoss has qualified only the even tandem
(two same compressors) for passive solutions.
line
Compressor 2
Manifold compressors
To condenser
Non-return valve
Oil separator with
oating-ball valve
Oil lter