YORK INTERNATIONAL
12
• Micro Board Program Jumper JP24 must be posi-
tioned appropriately per the input signal type as de-
tailed below. It is recommended a qualified Service
Technician position this jumper.
Important! The signal type used for
Remote Leaving Chilled Liquid Tem-
perature setpoint reset and the signal
type used for Remote Current Limit
setpoint reset must be the same. For
example, if a 0-10VDC signal is be-
ing used for Remote Current Limit
Setpoint, then a 0-10VDC signal must
be used for Leaving Chilled Liquid
Temperature reset.
0-10VDC - As shown in Fig. 18, connect input to Mi-
cro Board J22-3 (signal) and J22-5 (Gnd). A 0VDC
signal produces a 0°F offset. A 10VDC signal produces
the maximum offset (10 or 20°F above the Local Setpoint
value). The setpoint is changed linearly between these
extremes as the input varies linearly over the range of
0VDC to 10VDC. This input will only be accepted when
“Analog” Remote Mode is selected., the “Remote
Analog Input Range” setpoint is set for “0-10VDC”
and Micro Board Program Jumper JP24 has been re-
moved. Calculate the setpoint for various inputs as fol-
lows:
OFFSET(°F) = (VDC)(REMOTE RESET TEMP. RANGE)
10
SETPOINT(°F) = LOCAL SE OFFSET
For example, if the input is 5VDC and the Remote Re-
set Temp Range setpoint is programmed for 10°F and
the Local Leaving Chilled Liquid Temperature setpoint
is programmed for 40°F, the setpoint would be set to
45°F as follows:
OFFSET (°F) = 5 X 10
10
= 50
10
= 5°F
SETPOINT (°F)
= 40 + 5
= 45°F
2-10VDC - As shown in Fig. 18, connect input to Mi-
cro Board J22-3 (signal) and J2-5 (Gnd). A 2VDC sig-
nal produces a 0°F offset. A 10VDC signal produces
the maximum allowed offset (10°F or 20°F above the
Local Setpoint Value). The setpoint is changed linearly
between these extremes as the input varies over the
range of 2VDC to 10VDC. This input will only be ac-
cepted when “Analog” Remote Mode is selected,
the “Remote Analog Input Range” setpoint is set
for “2-10VDC” and the Micro Board Program Jumper
JP24 has been removed. Calculate the setpoint for vari-
ous inputs as follows:
OFFSET (°F) = (VDC – 2)(REMOTE RESET TEMP. RANGE)
8
SETPOINT (°F) = LOCAL SE OFFSET
For example, if the input is 5VDC and the Remote Re-
set Temp. Range setpoint is programmed for 40°F, the
setpoint would be set to 43.8°F.
OFFSET (°F)
= (5 – 2)(10)
8
= (3)(10)
8
= 30
8
SETPOINT (°F) = 40 + 3.8
= 43.8°F
SIGNAL
COMMON
5
4
+
J22
FIG. 19 – REMOTE LEAVING CHILLED LIQUID TEMP.
SETPOINT WITH 0-20MA OR 4-20MA
SIGNAL
LD04501
SIGNAL
COMMON
5
3
+
J22
FIG. 18 – REMOTE LEAVING CHILLED LIQUID TEMP.
SETPOINT WITH 0-10VDC OR 2-10 VDC
SIGNAL
LD04500
