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FORM 150.44-NM4
41
YORK INTERNATIONAL
R E T U R N
W A T E R
T E M P
C O N T R O L
GENERAL
After Return or Leaving Chilled Liquid Control is se-
lected according to the users application and Switch 4
of Dip Switch S1 on the Micro Board is properly config-
ured to select Return or Leaving control, the chilled
liquid setpoints can then be programmed into the con-
trol panel. Switch #4 of S1 must be properly pro-
grammed or an incorrect display message will appear
when the CHILLED LIQUID TEMP/RANGE key is
pressed.
SEE SELECTION OF RETURN OR LEAV-
ING CHILLED LIQUID CONTROL Page 40 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
NOTE: In LWT CONTROL, water temperature may
undesirably rise when a compressor cycles off
and cannot restart because the anti-recycle
timer is still timing out. The effects can be re-
duced by programming the anti-recycle timer
(Page 36) 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
appropriate 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
PROGRAMMING CHILLED LIQUID SETPOINTS & REMOTE RESET TEMP RANGE
26572A
SETPOINTS
KEYS
or LEAVING WATER CONTROL section as required
below. Programming the REMOTE RESET TEMP
RANGE is discussed later in this manual on Page 65.
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
Microprocessor Board is programmed properly:
CHILLED LIQUID
TEMP / RANGE