age, the thermal mixing valve (H) remains on the pack-
age. Control group part number 200 ECM4002 will be
mounted on package at the factory. This group controls
the oil stop valve as well as not allowing machine to run
blowndown. See FIGURE 5-2, page 44.
NOTICE
Remote mounted elevated coolers
have a maximum pipe length of 30feet
(9 M) (each way) and a maximum
height of 20 feet (6 M) with a minimum
of fittings. Engineering will review all
remote elevated cooler applications
and recommend pipe size on an indi-
vidual basis.
Customer Service
should include the engineering rec-
ommendation in the special order
sent to Engineering.
Kit number EAQ68330 includes the oil stop valve,
check valve and flanges and must be installed on all re-
mote elevated coolers per See FIGURE 5-2, page 44,
and the following instructions.
1. Mount the check valve (90J1 13) as shown.
2.
Mount the drain valves inthe lowest section of the
pipe on each side of the cooler connections.
3.
Mount the oil stop valve (90AR243) inthe line after
the thermal mixing valve as shown.
Modifications to the control Iines willbe made at the fac-
tory per 288 ECM81 Oschematic. Air to the oilstop valve
must come from the upper fitting inthe separator hous-
ing, then pass through the 3-way pneumatic valve.
Control air to the valve must be from the line between
the tee and the orifice in the blowdown muffler line per
FIGURE 5-2, page 44.
When the machine blows
down, itwill activate the pneumatic valve and itwill shut
off the air and vent the line between the pneumatic con-
trol valve and the oil stop valve to atmosphere. This will
shut the oil stop valve and prevent excessive oil from
running into the reservoir.
Failure to install these parts could result in high oil car-
ryover and cause the machine to shutdown on high dis-
charge temperature.
COLD AMBlENT OPERATION - See “installation for
Cold Weather Operation,” page 9.
ADDITION OF OIL BETWEEN CHANGES
must be
made when the oil level is in
the red range on the gauge
as read while the unit is on. To add oil, follow these
steps:
1.
2.
3.
4.
5.
Be sure the unit is completely off and that no air
pressure is in the oil reservoir.
Disconnect, tag and lockout the power supply to
the starter.
Wipe away all dirt around the oil filler plug.
Remove the oil filler plug and add oil as required
to return the oil level to the center of the green
range on the ,gauge.
Install the oil filler plug, restore power, run and
check for leaks.
DO NOT OVERFILL. The quantity required to raise the
oil level from the red range center of the green range
is shown in FIGURE 5-4, page 47. Repeated addition
of oil between oil changes may indicate excessive oil
:arry-over and should-be investigated.
~DANGER
Air/oil under pressure will cause
severe personal injury or death. Shut
down compressor, relieve system of
all pressure, disconnect, tag and
lockout power supply to the starter
before removing valves, caps, plugs,
fittings, bolts, and filters.
~DANGER
Compressor, air/oil reservoir, separa-
tion chamber and all piping and tub-
ing may beat high temperature during
and after operation.
~CAUTION
Excessive oil carry-over can damage
equipment. Never fill oil reservoir
above the “FULL” marker.
LUBRICANT CHANGE PROCEDURE - Upgrading to
a longer life lubricant is essentially a very worthwhile
practice. Following are the primary steps to be com-
13-9/10-641 Page 46
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