Robinair 342000 Refrigerant Service Solution - Manual (Page 13)

11
342000 Refrigerant Service Solution
7. Attach the red (front) 15-foot temperature probe and blue (rear) 30-foot
temperature probes and optional airflow sensor to the appropriately la-
beled connections at the upper rear.
8. The display will prompt you to add oil:
ADD 5.0 OUNCES OF NEW OIL TO VACUUM PUMP
PRESS START TO CONTINUE
Add 5 ounces of oil, and press START. The vacuum pump will start, and the
display will show:
FILL WITH NEW OIL TO CENTER OF SIGHT GLASS (APPROX. 13.0 OUNCES)
PRESS ENTER WHEN COMPLETE
After the user presses ENTER, the pump will stop, and the unit starts the first
fill procedure.
9. Install a tank of new R-134a refrigerant on the lower shelf of the unit,
below the handle—the 342000 can handle 30 lbs. (14 kgs) or 50 lbs. (23
kgs) tanks. The source tank should be installed so that liquid refrigerant is
available:
• Virgin tank should be inverted.
• Refillable tank should be upright with hose connected to liquid valve.
Secure the tank to the unit by placing the strap around the tank and tight-
ening it.
NOTE: For initial set-up of the 342000, it is imperative that a new tank of
R-134a refrigerant be used and the source tank should be tested for contami-
nation (see page 12). The tank of refrigerant used for initial fill of the internal
storage vessel is not automatically identified, and introduction of contaminated
refrigerant to the unit will require service which is not covered under warranty.
10. Attach the black hose coming from behind the tank to the source tank
fitting. Open the source tank valve. Press START.
11. The 342000 now automatically evacuates all air from the internal circuit
and tanks and precharges the tank with 12 pounds of R-134a available for
charge. This process takes approximately 15 to 20 minutes.
To avoid the possibility of lost refrigerant, virgin tanks should be checked for
leakage around the tank valve after being connected and the valve opened. If
leakage is found, close the valve and keep it closed at all times EXCEPT during
manual tank refill. (Before pressing MANUAL TANK REFILL button, open the
valve. Close the valve immediately after the process is complete.) The manufac-
turer does not reimburse for lost refrigerant.
The 342000 is now set up and ready for operation.
Initial Set-Up
IMPORTANT:
Always test
source tanks
prior to
installation on
the 342000. See
the following
page for
procedure.