Intended Use; Technical Description - Waeco AirCon Oil Checker R134a Installation And Operating Manual

Oil Checker
3

Intended use

The oil checker can only be used in vehicles whose air conditioning system
is equipped with a low-pressure connection and a high-pressure connection.
The oil checker is available in two models:
 for air conditioners with R-134a (ref. no. 8885100163)
 for air conditioners with R-1234yf (ref. no. 8885100164).
I
NOTE
To prevent contamination of the refrigerant or the refrigerant oil,
the hoses and sight glasses of the two versions must not be inter-
changed.
4

Technical description

The oil checker is used for testing the condition of refrigerant and refrigerant
oil, especially for:
 Swarf
 Discoloration
 Acidification
The refrigerant and the refrigerant oil.can be evaluated by visually inspecting
it through the sight glass. In addition, coarse filtering can be performed with
the sintered filter.
4.1 Control elements
Item in
fig. 2,
Description
page 3
1 Low-pressure shut-off valve Opens/closes the low-pressure side
2 Sight glass
3 Protective cover
4 Connection
5 High-pressure shut-off valve Opens/closes the high-pressure side
6 Coarse filter
EN
Explanation
Visual inspection of the refrigerant oil
or the refrigerant
Protects the sight glass from damage
Connection of the high-pressure side
Filters the refrigerant
Intended use
15