YORK INTERNATIONAL
72
the need for closer examination by factory ser-
vice personnel 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 de-
livery 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
charging valve and pump oil into the crankcase
to the proper level. It is necessary that the suc-
tion 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 be-
fore disconnecting the line from the vacuum pump.
Disconnect 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/RUN
STATUS 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. 27.
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. 27
CONDENSER WATER PUMP CONTACT
CONNECTION POINT
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