PRODUCT DRAWING
YORK INTERNATIONAL CORPORATION
P .O. Box 1592, YORK, PA 17405
CONTRACTOR _______________________PURCHASER ____________________________________________ORDER NO.__________________________JOB NAME _______________________________________________YORK CONTRACT NO._________________LOCATION _______________________________________________YORK ORDER NO.____________________
ENGINEER ______________________________________________
REFERENCE
DA TE ________
APPROVAL DA TE ________
CONSTRUCTION DATE ________
Supersedes: Nothing WIRING DIAGRAM
MILLENNIUM Y S (STYLE C) ROTARY SCREW CHILLER
MICROCOMPUTER CONTROL CENTER WITH ELECTRO-MECHANICAL STARTER
JOB DATA:
CHILLER MODEL NO. YS _________________NO. OF UNITS __________________________
COMPRESSOR MOTOR ________________VOLTS, 3-PHASE,______________________________H Z
REMARKS:_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
FORM 160.47-PW1 (7)
REF. 035-09973-000, REV D
(Cont d. on pages 3 & 4)
LD02399
2 YORK INTERNATIONAL
FORM 160.47-PW1
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YORK INTERNATIONAL
ELEMENTARY DIAGRAM
LD02400
LD02401
TIMING DIAGRAM
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YORK INTERNATIONAL
FORM 160.47-PW1
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YORK INTERNATIONAL
LD02403
ELEMENTARY DIAGRAM (Cont d.)
1.This wiring diagram describes the standard electronic
control scheme for use with an Electro-Mechanical Starter. For details of standard modifications (by oth-ers), refer to Product Drawing Form 160.47-PW5.
2.Field wiring to be in accordance with the National
Electrical Code as well as all other applicable codes and specifications. See Product Drawing Form 160.47-PW3 for field wiring connections.
3.Numbers along the left side of diagram are line iden-
tification numbers. The numbers along the right side indicate the line number location of relay contacts.
An underlined contact location signifies a normally closed contact.
4.Main control panel Class 1 field wiring terminal con-
nection points are indicated by numbers within a rect-angle, i.e. 15 . Main control panel factory wiring terminal connection points are indicated by numbers within a triangle, i.e. 5 . Component terminal markings are indicated by numbers within a circle, i.e.
C1 . Numbers adjacent to circuit lines are the circuit identification numbers.
5.To cycle on and off automatically with contacts other
than those shown, install a cycling device between terminals 1 & 13 (line 27) (see Note 9). If a cycling device is installed, jumper must be removed between terminals 1 & 13 .
6.Compressor motor starter with starter interlock con-
tacts (rated 0.2 amps @ 120 volts A.C.) must be per Form 160.47-PW7. Control panel shall be grounded.
7.Units installed in Canada must have a field supplied
CSA approved 30 amp disconnect switch and a 15 amp dual element fuse mounted external to control panel for 115 volt control supply.
8.To stop unit and not permit it to start again, install a
stop device between terminals 1 & 8 (line 23) (see Note 9). A Remote start-stop switch may be
connected to terminals 1 , 7 & 8 (lines 22 and
23) (see Note 9). Remote start-stop switch (line 22)
is operative only in the remote operating mode.
9.Device contact rating to be 5 miliamperes at 115 volts
A.C.
10.Contact rating is 5A resistive @ 120 volts A.C. or
240 volts A.C.
11.To check motor rotation on initial start-up, install mo-
mentary switch between terminals 24 & 25 (line
35). Depress start switch, after approx. 30 seconds,
jog motor with momentary switch. When proper rota-tion is obtained, replace momentary switch with jumper. Switch must have a minimum contact rating of 2 FLA, 10 LRA at 115 volts A.C.
12.Solid state motor overload (CM) is set to trip at 105%
FLA. During momentary power interruption (power fault), contact also opens for 1 second.
13.For high and low voltage units, the factory supplied
jumper between 1 & 53 must be removed when Electro-Mechanical starter overloads and/or safety devices are used. For high voltage (2300-4160) UL and CSA approved units only, electro-mechanical compressor motor starter overloads (normally closed) must be connected between 1 & 53 .
14.Contact rating is 5 amps resistive @ 250 volts A.C.
& 30 volts D.C., 2 amp inductive (0.4 PF) @ 250 volts A.C. & 30 volts D.C.
15.Each 115VAC field-connected inductive load, i.e. re-
lay coil, motor starter coil, etc. shall have a transient suppressor wired in parallel with its coil, physically located at the coil. Spare transient suppressors and control circuit fuses are supplied in a bag attached to the top of the hinged panel.
16.Low oil pressure (LOP) safety shutdown occurs when
oil pressure evaporator pressure differential is less that 15 psi following a 3 minute bypass at compres-sor start.
LEGEND
LD02402
6 YORK INTERNATIONAL
FORM 160.47-PW1
7YORK INTERNATIONAL PRESSURE TEMPERATURE CHART
LD02404
* Function provided by condenser transducer
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FORM 160.47-PW1
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YORK INTERNATIONAL CONNECTION DIAGRAM LD02405
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YORK INTERNATIONAL
FORM 160.47-PW1
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YORK INTERNATIONAL LD02406
CONNECTION DIAGRAM (Cont d)
P.O.Box1592,YORK,Pennsylvania USA17405-1592Subject to change without notice.Printed in USA Copyright©by YORK International Corporation1997ALL RIGHTS RESERVED Form160.47-PW1(7)
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