11
Introduction
Back View
Figure 2: 1090AT diagnostic™ Back View
A — Power Switch
Turns power ON and OFF. Must be on ( I )
for unit operation.
B — Power Entry Module
C — Master Filter/Dryer
Consists of a 10 micron particulate filter and
desiccant to remove moisture. For
additional information refer to
Changing the
Master Filter/Dryer.
D — Blue Temperature Probe (optional)
Red Temperature Probe (optional)
E — Refrigerant Identifier Incoming Oil
Separator with Drain Port (optional)
Removes oil and other contaminants from
the refrigerant being identified.
F — Serial Tag
G — Vacuum Pump Oil Level Sight Glass
Vacuum pump oil level should be in the
middle of the sight glass.
H — Vacuum Pump Oil Drain
I — Particle Filters (4)
Figure 3: Vacuum Pump Fill Port
Vacuum Pump Fill Port
Located inside the unit under the control
panel.
R-134a Accessories
Figure 4: R-134a Accessories
A — Service Hoses
Red and blue hoses with shut-off adapters
for your
1090AT diagnostic™ unit to
connect to the vehicle. For additional
information refer to
Connecting Service
Hoses to Vehicle.
B — Auto Shut-off Adapters (Couplers)
— Connects to high- and low-side service
ports of vehicle.
— Quick connect/disconnect valve
actuation without refrigerant venting.
Couplers contain manual shut-off hand
valves to control flow of refrigerant while
connected to service ports and prevent
blow-back while connecting/
disconnecting hoses.
C — Low-Side Adapter Fitting
Adapter, part number 1-15080, to connect
low-side service hose to a refrigerant tank
for adding refrigerant to the 1090AT
diagnostic™ unit, for new tank preparation
and for evacuating a tank prior to preparing.
For Reference Only
