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VL Series Portable Chillers, 0.25 to 1.5 Tons UGH020/0301
2. UP: used to increase the setpoint value, as well as the
parameter when in programming. When held down for a
few seconds, the change rate accelerates.
3. DOWN: used to decrease the setpoint value, as well as the
parameter when in programming. When held down for a
few seconds, the change rate accelerates.
4. OUT: status light of the output, blinks when in setpoint
display/change mode or during programming.
C. DESCRIPTION OF PARAMETERS
1. D1: setpoint differential. The switching differential
(hysteresis) can be set with positive value (make on rise) or
with negative value (make on fall). See parameter “HC1”.
2. LS1: lower set. This is the lower limit below which the user
cannot change the setpoint; normally set at the lowest
value recommended for the sensor.
3 HS1: higher set. Similar to “LS1”, however setting an upper
limit for the setpoint.
4. od: output delay. This provides a delay selection for the
outputs in applications where noise may cause brief
erroneous signals from the sensor to the controller. Factory
set at “0”.
5. Lci: lower current input (for EWPC 902/R, EWPC 902/P and
EWPC 902/T with current input only). Read-out
corresponding to 4 mA input signal (factory set at 20 %R.H
for EWPC 902/R).
6. Hci: high current input (for EWPC 902/R, EWPC 902/P and
EWPC 902/T with current input only). Read-out
corresponding to 20 mA input signal (factory set at 100
%R.H for EWPC 902/R).
7. CAL: CALibration. This offers an adjustment up or down of
the read-out, if needed. Factory set at “0”.
ewpc902t
out
SET
UP
DOWN
Up Arrow
Down Arrow
Output Status Light
Set Button
Press for less than
3 seconds to change
setpoint.
Press for more than
4 seconds to access
parameters.