Robinair 25175B REFRIGERANT RECOVERY SYSTEM - Manual (Page 6)

NOTE: If there is no liquid in the recovery tank, then
the cooling method will not work. In this case, use an
empty tank that has been fully evacuated to achieve
the final vacuum level required.
14. If the tank pressure exceeds 300 psi, use the tank
cooling procedure to reduce the tank pressure.
(See Pages 12 & 13)
15. To maximize recovery rates, use the shortest
possible length of 3/8" or larger hose. A hose no
longer than 3 feet is recommended.
16.For maximum throughput, always remove all
unnecessary hose core depressors and the
Schraeder valves from port connections.
17.Deformed rubber seals and core depressors in
hoses and faulty or unnecessary Schraeder
valves can restrict flow up to 90%.
OPERATING GUIDELINES - cont.
5
1. USE of a filter/dryer at the inlet is mandatory. A fil-
ter/dryer must always be used between the recov-
ery machine and the inlet hose.
2. Special care should be taken when recovering
from a "burned-out" system. Use two high acid
capacity filters, in series. (Alco type EK-162-F or
Sporlan type C-162-F are recommended )When
you have finished recovering from the system,
flush your 25175B with a small amount of clean
refrigerant and refrigerant oil to purge off any for-
eign substances left in the unit.
3. Always empty refrigerant from the 25175B into a
storage tank; see Self-Purge/Auto Evacuate pro-
cedure on Page 11. Liquid refrigerant left in the
25175B’s condenser may expand, causing dam-
age to components.
4.
Ꮨ
Warning! Whenever you perform any type of
maintenance work on your 25175B, insure that it
is disconnected from the power supply before
you begin.
5. If the unit is to be stored or not used for any
length of time, we recommend that it be com-
pletely evacuated of any residual refrigerant and
purged with dry nitrogen.
CARE AND MAINTENANCE OF YOUR 25175B