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© 2001 Robinair, SPX Corporation
14
RECOVER
RECOVER
VACUUM
VACUUM
CLOSED
CLOSED
RECOVER
RECOVER
VACUUM
VACUUM
CLOSED
CLOSED
VAC-CHARGE
VAC-CHARGE
ENTER
ENTER
R-134A
R-134A
R-134A
R-134A
in Hg
in Hg
VAC
VAC
psi
psi
bar
bar
kPa
kPa
psi
psi
bar
bar
kPa
kPa
RECOVER
RECOVER
CHARGE
CHARGE
OIL INJECT
OIL INJECT
0
0
0
0
3
3
0
0
0
0
5
5
4
4
0
0
0
0
2
2
0
0
0
0
0
0
5
5
0
0
0
0
4
4
3
3
5
5
4
4
7
7
CLEAR
CLEAR
MENU
MENU
8
8
0
0
1
1
5
5
2
2
VACUUM
VACUUM
START
START
I
I
0
0
F1
F1
9
9
6
6
3
3
CHARGE
CHARGE
STOP
STOP
0
0
0
0
2
2
0
0
0
0
0
0
1
1
0
0
3
3
0
0
2
2
1
1
0
0
0
0
4
4
7
7
5
5
0
0
2
2
3
3
0
0
R
R
5
5
3
3
0
0
0
0
4
4
0
0
0
0
2
2
8
8
3
3
2
2
1
1
0
0
3
3
0
0
4
4
0
0
4
4
0
0
8
8
2
2
1
1
0
0
D
D
R
R
A
A
T
T
E
E
0
0
8
8
0
0
1
1
1
1
0
0
0
0
0
0
0
0
8
8
7
7
6
6
0
0
0
0
0
0
5
5
6
6
0
0
7
7
0
0
0
0
1
1
0
0
0
0
9
9
0
0
1
1
0
0
5
5
5
5
1
1
0
0
0
0
1
1
5
5
0
0
0
0
0
0
0
0
0
0
0
0
5
5
0
0
0
0
1
1
0
0
5
5
0
0
2
2
1
1
0
0
5
5
0
0
0
0
1
1
3
3
0
0
0
0
5
5
0
0
4
4
0
0
0
0
2
2
0
0
5
5
0
0
2
2
0
0
3
3
0
0
6
6
0
0
2
2
5
5
0
0
HIGH
HIGH
Operating Instructions
EVACUATING THE A/C SYSTEM
WARNING
Wear safety goggles when working with refrigerant. Use only
authorized refillable refrigerant tanks. Read and follow all warnings
at the beginning of this manual before operating the unit. In addition
to the number keys, the keypad contains special keys that
accomplish specific operating functions.
NOTE:
• If any oil was drained from the system during recovery, DO NOT use the VAC-
CHARGE feature. The oil must be replenished into the A/C system, which is not
possible when the VAC-CHARGE function is used.
• If the vacuum pump has been run more than 10 hours since the last oil change,
the display reads: VACUUM OIL TIME XX:XX. Press the STOP key to change
the vacuum pump oil, or press the START key to continue. Instructions for
changing the vacuum pump oil are located in the maintenance section of this
manual. NOTE: Vacuum pump oil should be changed after every 10 hours of
use to maintain maximum performance and endurance levels.
• If the system being evacuated contains a pressure over 25 psi at any point during
the evacuation, the display reads PRESSURE EXISTS. This message indicates
that the A/C system contains refrigerant; press any key to continue. Press the
RECOVERY key to recover any refrigerant in the system (See RECOVERING
REFRIGERANT, page 12). After recovery is complete, return to evacuating the
A/C system.
VAC-CHARGE
1. Press the VAC-CHARGE key to select the VAC-CHARGE feature.
2. Ensure the service hoses are connected and both panel valves are in the
VACUUM/ RECOVER position. Press START.
IMPORTANT!
Evacuate the
system for at
least 15
minutes to
ensure
adequate
moisture and
contaminant
removal.
IMPORTANT!
If the vacuum
pump has run
for 10 or more
hours without
an oil change,
the message
VACUUM OIL
TIME XX:XX
appears on the
display.
Change the
pump oil
following the
procedures in
the
MAINTENANCE
INSTRUCTIONS.
Vacuum
INST0929
The Control Panel
During Evacuation
Vac-Charge