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FORM 150.75-NM2
83
YORK INTERNATIONAL
for closer examination by factory service person-
nel is indicated.
H. If the oil is clean and free of metal particles, refill
the compressor with YORK oil C. To add oil or to
fill the compressor crankcase, connect the deliv-
ery tube of the YORK Hand Oil Pump. YORK Part
No. 470-10654 or equal to the compressor oil
charging and drain valve. Expel all air from the
delivery tube by pumping it full of oil, allowing a
few drips to drip out before tightening the flare nut
to the oil charging valve. Then open the oil charg-
ing valve and pump oil into the crankcase to the
proper level. It is necessary that the suction end
of the hand oil pump be kept submerged under
the oil level in the container at all times, to avoid
entrance of air into the compressor.
I. Before opening the suction or discharge stop
valves, connect a vacuum pump to the pump-out
port in the discharge stop valve. (Pump-out port is
port on valve stem side of valve). With the vacuum
line shutoff valve open, run the vacuum pump until
a vacuum of at least 1000 microns is reached.
Stop the vacuum pump, close the shut-off valve
and open the discharge valve fully before discon-
necting the line from the vacuum pump. Discon-
nect the vacuum pump and replace the plug in
the pump-out port.
NOTE: If suction or discharge valves are not seated
properly, a 1000 micron vacuum can not be ob-
tained. Do not evacuate for long periods of time.
J. Be sure both discharge and suction stop valves
are open before operating the unit.
4. Suction and Discharge Valves The condition of the
suction and discharge valves should be checked by
YORK service personnel.
CONDENSER WATER PUMP CONTACT OPTION
This option provides a dry contact in the Master Panel
which can be used to turn on the condenser water pump,
other device or indicate run status. The contact closes
whenever one of the compressors start.
Connections to this contact can be made on Terminals
21 and 22 of TB1 in the power panel. The location of
these terminals is shown in Fig. 37.
This option utilizes a second Relay Output Board and
associated wiring. The part number for the Field
Mounted Pump Control Kit is 471-01232-101. This kit
is not required if a second Relay Output Board is al-
ready installed in the Master Panel.
FIG. 37
CONDENSER WATER PUMP CONTACT
CONNECTION POINT (
MASTER
PANEL
ONLY
)
OPTIONS
This section is devoted to options which may be ordered or retrofitted to the unit. Listed below are the options which
are covered in this section.
1. CONDENSER WATER PUMP/RUN STATUS CONTACT OPTION
2. EVAPORATOR WATER PUMP CONTACT OPTION
3. LOW AMBIENT ACCESSORY
4. HOT GAS BYPASS (LOADMINDER) OPTION
5. DISCHARGE PRESSURE READOUT OPTION
6. HIGH AMBIENT OPTION
7. LOCAL PRINTER OPTION
8. OPTIONAL TAMPERPROOF ENCLOSURE (WIRE GRILLE)
9. OPTIONAL DECORATIVE TAMPERPROOF ENCLOSURE (LOUVERED & WIRE GRILLE)
10. OPTIONAL DECORATIVE TAMPERPROOF ENCLOSURE (LOUVERED)
11. BAS INTERFACE OPTION (REMOTE RESET OPTION)
Both controls are included
as part of the
PUMP CONTROL KIT
LD01945
Содержание YDAJ87HU7
Страница 4: ...YORK INTERNATIONAL 4 FIG 1 UNIT COMPONENTS Typical on each of the two modules 00023TG 00024TG...
Страница 5: ...FORM 150 75 NM2 5 YORK INTERNATIONAL FIG 1 UNIT COMPONENTS Cont d LD01910 00025TG...
Страница 24: ...YORK INTERNATIONAL 24 MASTER MODULE WIRING DIAGRAM LD01933 FIG 17 MASTER MODULE CONNECTION DIAGRAM...
Страница 30: ...YORK INTERNATIONAL 30 SLAVE MODULE WIRING DIAGRAM FIG 20 SLAVE MODULE CONNECTION DIAGRAM LD01941...
Страница 99: ...FORM 150 75 NM2 99 YORK INTERNATIONAL...