58
YORK INTERNATIONAL
26572A(D)
NOTE:
In LWT CONTROL, water temperature may un-
desirably rise when a compressor cycles off and
cannot restart because the anti-recycle timer is
still timing out. The effects can be reduced by
programming the anti-recycle timer (Page 46)
for a minimum of 300 seconds if it isnt already
programmed for 300 seconds. If problems still
arise, switch to RWT CONTROL.
Once the dip switch #4 on the Microprocessor Board is
properly positioned, the user will be able to view the ap-
propriate display when the CHILLED LIQUID TEMP/
RANGE is pressed. This display will show one of the
following messages depending upon S1 positioning:
R E T U R N
W A T E R
T E M P
C O N T R O L
L E A V I N G
W A T E R
T E M P
C O N T R O L
SETPOINTS KEYS
PROGRAMMNG CHILLED LIQUID SETPOINTS AND
REMOTE RESET TEMP RANGE
SETPOINTS
KEYS
GENERAL
After Return or Leaving Chilled Liquid Control is selected
according to the users application and Switch #4 of Dip
Switch S1 on the Micro Board is properly configured to
select Return or Leaving control, the chilled liquid
setpoints can then be programmed into the control panel.
Switch #4 of S1 must be properly programmed or an
incorrect display message will appear when the CHILLED
LIQUID TEMP/RANGE key is pressed.
SEE SELEC-
TION OF RETURN OR LEAVING CHILLED LIQUID
CONTROL
Page 50 if needed.
If remote temperature setpoint is being utilized, the RE-
MOTE RESET TEMP RANGE must be programmed.
The following information will cover programming both
return and leaving control. Refer to either the RETURN
or LEAVING WATER CONTROL section as required be-
low. Programming the REMOTE RESET TEMP RANGE
is discussed later in this manual on Page 75.
PROGRAMMING RETURN WATER CONTROL
Chilled Liquid
Temp/Range
When the CHILLED LIQUID TEMP/RANGE key is
pressed, the following message will be displayed for 3
seconds indicating Dip Switch S1, Switch #4 on the Mi-
croprocessor Board is programmed properly:
R E T U R N
W A T E R
T E M P
C O N T R O L
CHILLED LIQUID
TEMP/RANGE
Summary of Contents for YCWJ45EE0
Page 29: ...FORM 150 24 NM27 YORK INTERNATIONAL 29 CONTROL CIRCUIT With I O Expansion Board LD02106...
Page 30: ...30 YORK INTERNATIONAL FIG 9 SYSTEM WIRING...
Page 31: ...FORM 150 24 NM27 YORK INTERNATIONAL 31 LD02678...
Page 35: ...FORM 150 24 NM27 YORK INTERNATIONAL 35 LD02679...
Page 36: ...36 YORK INTERNATIONAL MICROPANEL CONNECTION DIAGRAM With I O Expansion Board LD02107...
Page 37: ...FORM 150 24 NM27 YORK INTERNATIONAL 37 LD02108...