Specifications

Before starting the set up procedures, open the system oil drain valve and allow the unit

to depressurize.

1. Plug the unit into a proper voltage outlet.

CAUTION! Avoid the use of an extension cord because the extension cord

may overheat. However, if you must use an extension cord, use a No. 14 AWG

minimum and keep the cord length to 25 feet (7.6 meters) or less.

2. Be sure the oil drain valve on the side of the unit is in the CLOSED position.

3. Turn on the unit. The display flashes “door.” Slide the lockout door (in the upper

left corner of the back of the unit) to expose

the

” flare fittings for R-12, or the

” Acme fittings for R-134a then press

SHIFT/RESET to continue.

4. Connect either of the automotive hose sets as follows:

• Connect the 36” red hose to the

RED fitting on the back of the unit

• Connect the 36” blue hose to the

BLUE fitting on the back of the unit

• Connect the 36” yellow hose to the

YELLOW fitting on the back of the

unit

CAUTION! R-134a automotive

systems have

” Acme fittings (per

SAE specifications) to avoid cross-contamination with systems using

” flare fittings. Do not attempt to adapt your unit for the other refrigerant —

system failure will result!

Diagram of Hose Connections 

Lockout Box

INST0920

HIGH

LOW

RED

BLUE

YELLOW

Set Up Instructions

(R-134a shown—

R-12 same order

and colors)