Download Operating Manual - Nytech Supply Co

Set Up Instructions
9. While the pump is running, add enough vacuum pump oil so that the oil level is
even with the line on the reservoir’s sight glass.
10. Press 1 or SHIFT/RESET to stop the pump.
IMPORTANT!
Be sure the
pump is running when
adding oil.
11. Replace the black plastic plug on the oil fill port.
12. Replace the access door on the front of the unit.
See "Maintenance Instructions" for step-by-step procedures for changing the
vacuum pump oil.
INSTALLING THE TANK AND
PULLING A VACUUM
WARNING
Always 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.
CAUTION! R-134a systems have special fittings (per SAE specifications)
to avoid cross-contamination with R-12 systems. Do not attempt to adapt
your unit for another refrigerant — system failure will result!
1. A new tank comes with a dry nitrogen charge of 10 to 15 psi to keep it clean
and dry during shipment. Purge its nitrogen charge by opening either valve on
the tank. Vent the pressure to the atmosphere, then close the valve.
2. Place the unit tank on the scale platform on the back of the unit. Securely
tighten the thumbscrew on the platform to hold the tank in place. Attach the
clip of the tank strap to the tank handle.
3. Connect the Quick SealTM end of the yellow hose to the air purge port on the
tank. Connect the open end of the yellow hose to the port on the unit marked
YELLOW.
4. 34700/3470134704 Series — Attach the 16301 adapter (located on the oil
drain) to the vapor valve of the tank. Attach the blue low side hose to the
adapter. Open the coupler on the low side hose.
17700A/17701A Series — Attach the blue low side hose to the vapor valve of
the tank.
5. Connect the open end of the 36” (91 cm) red vapor hose to the RED port on
the back of the unit.
6
© 1998 Robinair, SPX Corporation