Specifications

Operating Instructions

Important!

Before changing

refrigerant types,

be sure the red

high side and blue

low side hoses are

disconnected from

the A/C system.

CHANGING REFRIGERANT TYPES

1. Be sure the red high side and blue low side hoses are disconnected from the A/C

system, then open the manifold and tank valves.

2. Press and release SHIFT/RESET until the “Clr” message appears.

3. Press HOLD/CONT to start the system oil separator clearing process.

During the system oil separator clearing process, the compressor is activated and

the “OIL” message displays. The compressor will stop while the unit equalizes

pressure and the “OIL” message will continue to display. When the unit reaches the

correct pressure, the display alternately flashes the messages “OIL” and “drn.”

Open the system oil drain valve to drain the oil. After all oil has drained, close the

oil drain valve. The message changes to “Cont.” Press any key to complete the oil

separator clearing process. When compressor stops again, the message changes to

"CL-c."

First!

Perform

"RECOVERY

PROCE-

DURES"

before starting

"CHANGING

REFRIGER-

ANT TYPES".

AUTOMATIC

Diagram of Unit’s Components — External View

High Side Port

Lockout Door

Blue Liquid Hose

Red Vapor Hose

Yellow Air Purge Hose

Air Purge

Fitting

50 lb. (23 kg)

Unit Tank

Scale Assembly

Low Side Port

Tank Vapor Valve

Tank Liquid Valve