Proximity Probe - York MAXE OPTIVIEW YK Service Instructions Manual

Centrifugal liquid chillers
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System Calibration
2. Select ACC DETAILS Screen from the MO TOR
screen.
3. On the ACC DETAILS Screen, press the ap pro -
pri ate Setpoints key above.
4. Use the numeric keypad keys to enter the de sired
value.
Press ENTER (✔) key.
ACC Surge Map:
To perform any of the following ACC Surge Map func-
tions, proceed as follows:
1. At the Keypad, log in at SERVICE access lev el
using access code 1 3 8 0.
2. Select ACC DETAILS Screen from the MO TOR
Screen.
3. On the ACC DETAILS Screen, press the ap pro -
pri ate key as follows:
a. Surge Map Clear – Clears all of the pre vi ous ly
es tab lished surge points that are stored in mem-
o ry. When this key is pressed, a dialog box
appears re quest ing the spe cial ACC Map Clear
Password. En ter 0 3 6 8 and press the Enter (✔)
key. A mes sage is dis played advising the clear-
ing is in progress. Press switch SW1 on ACC
Board, with in 15 seconds of pressing the (✔)
key. Another mes sage is dis played when clear ing
is com plet ed. IM POR TANT! - This should nev er
be per formed un less ad vised by YORK Fac to ry
Ser vice.
b. Surge Map Print – Prints the entire ar ray of stored
surge points to a printer con nect ed to COM1
Serial Port. Press key again to stop print.
c. Auto Print enable/disable – Prints new surge
points, as they are established, to a printer con-
nect ed to COM1 Serial Port. Press key again to
stop print.
d. Manual Surge Point – With in 15 sec onds of press-
ing this key, press SW1 on the ACC Board for
at least 1 second. The ACC Board will con fi rm
rec og ni tion of this point by il lu mi nat ing red
SURGE LED CR9 for 2 sec onds. The op er at ing
conditions at that instant are captured and stored
as a surge point.
Kilowatt Hours:
1. At the Keypad, log in at SERVICE access lev el
using access code 1 3 8 0.
2. Select MOTOR Screen.
3. Press KWH RESET key.
138
4. Use numeric keypad keys to enter desired value.
5. Press ENTER (✔) key.
VSD Frequency Control:
The VSD Frequency can be manually controlled as
fol lows:
1. At the Keypad, log in at SERVICE access lev el
using access code 1 3 8 0.
2. Select VSD TUNING Screen from the COM-
PRES SOR Screen.
3. On the VSD Tuning Screen, press the ap pro pri ate
key as follows:
a. Set – Places Frequency Control in Manual Mode.
Sets the VSD speed at a specifi c fre quen cy be-
tween 1.0 and 60 (50) Hz.
b. Auto – Places the VSD in automatic fre quen cy
con trol. The fre quen cy is de ter mined by the ACC
Board to achieve slow est speed pos si ble while
avoiding surge.
c. Fixed – Sets the VSD frequency at max i mum:
60 (50) Hz.
d. Raise – Places Frequency Control in Man u al
Mode. In creas es the VSD fre quen cy by 0.1 to
10.0 Hz, as programmed with the INCR AMT
(in cre ment amount) key.
Each press of this key increases the fre quen cy
by the programmed Amount (0.1 to 10.0 Hz)
e. Lower – Places frequency Control in Man u al
Mode. De creas es the VSD fre quen cy by ?? to
10.0 Hz, as programmed with the INCR AMT
(in cre ment amount) key.
Each press of this key decreases the frequency
the pro grammed amount (0.1 to 10.0 Hz).
f. Incr Amt - Programmable Setpoint (0.1 to 10.0
Hz) that de ter mines the amount of increase or
de crease in VSD fre quen cy that oc curs with
each press of the INC or DEC key in Manual
fre quen cy control mode.

PROXIMITY PROBE

The following applies to all applications except "P" com-
pressors and Style F and later chillers equipped with "G"
or "H5-8" compressors: When the Probe is installed at
the time of manufacture or after the compressor is rebuilt
in the fi eld, a Ref er ence Position is established. This
remains the Ref er ence Position until the Compressor is
rebuilt. It is the distance (in mils) between the tip of the
Probe and the surface of the High Speed Thrust Collar
with a min i mum of 25 PSID oil pressure. Any distance
FORM 160.54-M1(503)
YORK INTERNATIONAL

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