Vilter VSM 71-701, Руководство по эксплуатации и обслуживанию

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Operation
I. OIL SYSTEM
A. Oil Charge
Charge the combination oil receiver/separator
with the proper quantity of lubricating oil (see
Installation Section).
CAUTION
It is imperative you charge the oil into the
receiver/separator prior to energizing the con-
trol panel to prevent burning out the immer-
sion heater in the separator/receiver.
During operation, maintain the receiver/sepa-
rator oil level in the normal operating range
between the two bullseye sight glasses. If the
oil level is visible only in the lowest sight glass,
add oil to the operating compressor through the
connection located at the compressor suction
inlet. Pump oil into the compressor until the
oil level in the separator is between the two
bullseye sight glasses. Watch this level care-
fully to maintain proper operation. Never al-
low the oil to reach a level higher than indi-
cated on the highest sight glass, since this may
impair the operation and efficiency of the oil
separator portion of this combination vessel.
B. Oil Filter
Change the oil filter after the first 200 hours of
operation, as noted on the hour meter. There-
after, replace the filter every six months, or
when the oil pressure drop through the filter
reaches 45 psi, whichever occurs first. The
pressure drop across the filter is read on the
microprocessor panel. Check the pressure drop
and record it daily.
To prepare for the removal of the filter, shut
down the compressor. Isolate the filter housing
appropriate. If unit is equipped with duplex fil-
ter housings the unit does not have to be shut
down, however the filter to be serviced must be
isolated before the tank or bowl can be opened.
1. Filter Removal and installation, all
VSR Units.
Release the pressure in the oil filter housing by
opening the bleed valves at the stop valve in
the block and bleed assembly, or at the bleed
valve for the oil filter housing. Be sure to fol-
low all Local, State and Federal ordinances re-
garding the recovery of refrigerants.
FIGURE 1.
TYPICAL CANISTER TYPE FILTER
CROSS SECTION
Drain the filter bowl or housing in to an appro-
priate container and dispose of the oil in a ap-
propriate manner following all Local, State and
Federal ordinances regarding the disposal of
used refrigeration oil.
Loosen and remove the locking ring on filter
tank by turning in a counter clockwise direc-
tion. Remove filter tank with the used element.
Remove the filter element from the tank. Be-
fore reassembling, thoroughly clean the tank
to lengthen the life span of the filter element.
Wet the threads and O-ring on the head and
the O-ring in the new element with clean re-
frigeration oil.