Specifications

3
m IMPORTANT SAFETY & OPERATING
GUIDLINE INFORMATION m
PERSONAL SAFETY
mSAFETY COMES FIRST! Read all safety, operating
guidelines and instructions before operating your
ProVax
TM
.
CAUTION: ONLY A QUALIFIED TECHNICIAN
SHOULD OPERATE THIS RECOVERY UNIT.
The operator must be familiar with air conditioning
and refrigeration systems, refrigerants and the dan-
gers of pressurized components.
Always think before acting, familiarity breeds
carelessness and carelessness can be harmful to
your health, or worse, result in death.
mWARNING: Always wear safety goggles and
protective gloves when working with refrigerants.
Contact with refrigerant may cause injury.
Disconnect hoses with extreme caution! All hoses
may contain liquid refrigerant under pressure.
Read all safety information regarding the safe
handling of refrigerant and refrigerant oil, including the
Material Safety Data Sheet. MSDS sheets can be
obtained from your refrigerant supplier.
Be sure that any room where you are working is thor-
oughly ventilated, especially if a leak is suspected.
Refrigerant vapor is hazardous to your health and can
cause death.
mAvoid breathing A/C refrigerant and lubrication
vapor or mist. Exposure may irritate eyes,nose and
throat. If accidental system discharge occurs, ventilate
work area before resuming service.
To reduce the risk of injury, care should be taken when
moving this equipment.
Promax strongly recommends the use of the optional
80% Capacity Shutoff Kit (p/n KT-5002).
When installed and used with a recovery tank that
has an internal float switch, the ProVax will shut
down automatically when the tank is 80% full.
Your ProVax is pre-wired from the factory for this kit.
m A scale must be used to avoid overfilling the
storage tank. DO NOT OVERFILL. Tank is full at
80% volume. Tank may explode if filled more
than 80% due to liquid expansion. Table 1 is a
representative sample for R-22 refrigerant:
TANK SIZE MAX NET WEIGHT
30 lb. Tank 24 lbs.
50 lb. Tank 40 lbs.
TABLE 1: Representative Sample, R-22
Note: Promax strongly recommends the use of
the ADS-100 Refrigerant Scale for monitoring
tank capacity.
Your ProVax has two Internal Pressure Shut
Off switches, a standard 400psi and a 550psi
(when the High Pressure [R410A] switch is
engaged). The shut off switches will automatically
reset after the pressure drops below 200 psi.
m WARNING: The Internal Pressure Shut Off
Switches do not prevent tank overfill. If your system
shuts off on high pressure and is connected to your
tank, you may have overfilled your tank and created
a very dangerous situation! Take immediate meas-
ures to relieve any high pressure and/or tank overfill.
When recovering large amounts of liquid, use the
"Push/Pull method (see diagram on page 13).
m CAUTION: When using the "Push/Pull"
method, once the "Push/Pull" siphon is started, it
can continue and overfill the storage tank even if
the tank is equipped with a "shut off" float sensor.
The siphon can continue even after the machine
is turned off.You must manually close the valves on
the tank and the unit to prevent overfilling of the
recovery tank.
Always operate the unit on a flat level surface.
If the tank pressure exceeds 300 psi, use the tank
cooling procedure to reduce the tank pressure.
(See Pages 13 & 14)