Robinair 178012K Recovery, Recycling, Recharging Unit - Manual (Page 14)

© 2000 Robinair, SPX Corporation
12
Operating Instructions
INST0146
Diagram of Unit’s Components — External View
Scale Assembly
Lockout Box High Side Port
Low Side Port
Red Vapor Hose
Blue Liquid Hose
Yellow Air
Purge Hose
Tank Vapor Valve
Tank Liquid Valve
Air Purge Fitting
50 lb. (23 kg)
Unit Tank
Important!
Before changing
refrigerant types,
be sure the red
high side and
blue low side
hoses are dis-
connected 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. Turn on unit and close the liquid valve on the tank. Press SHIFT/RESET until the
"program" message displays. Press and hold SHIFT/RESET and then press "1" to
recycle. Unit will pull into a vacuum and shut off.
3. Turn unit on and press SHIFT/RESET until the “Clr” message appears.
4. 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, the
First!
Perform
"RECOVERY
PROCEDURES"
before starting
"CHANGING
REFRIGERANT
TYPES".
AUTOMATIC