Evaporator
DI1
1- = Black
1S = Green
1+ = Red
R = Red
G = Green
W = White
B = Black
TS2 - Temp. Sensor 2
TS1 - Temp. Sensor 1
PB1 PB2
8.8.
Temperature
Sensor
SEI/SEH
TS2
TS1
B
W
G
R
1+ 1S
1-
DI1
24
V
AC
24 VAC
40 VA
Transformer
Pumpdown
Relay
(optional)
Pressure
Transducer
Valve 2 connections
on left block when used
SD-252-408
Pressing the
UP
button will increase the set point by 1 unit.
Pressing the
DOWN
button will decrease the set point by 1 unit.
Pressing the
ENTER
button will change the flashing digit from 1’s digit
to the 100’s digit.
Press and hold the
UP
button and
ENTER
button together for 5 seconds to
save the set point. The digits will stop blinking.
CHANGING
REFRIGERANTS
Press and hold the
UP
button and
ENTER
button simultaneously for 5
seconds to enable the controller to change to another type of refrigerant.
All 4 digits will start to blink.
Pressing the
UP
button or the
DOWN
button will change the display to
other refrigerants.
When the display shows the desired refrigerant, press and hold the
UP
button and
ENTER
button for together 5 seconds. The controller will save
and use the selected refrigerant’s table for saturated temperature. The digits
will stop blinking.
CHANGING VALVE TYPES – LGE1, SML1, or MED1
Press and hold the
UP
button and
ENTER
button for 5 seconds to enable
the controller to change to the other type of valves. All 4 digits will start
to blink.
Pressing either the
UP
button or the
DOWN
button will change the dis-
play between the different valve types. Press and hold the
UP
button and
ENTER
button together for 5 seconds to save the selection. The digits
will stop blinking.
Pressing the
UP
button and the
DOWN
button simultaneously will toggle
the display between AC circuit 1 and AC circuit 2.
AC CIRCUIT 2 MENU
The preceding instructions apply to AC circuit 2 as well as AC circuit 1:
SUP2
Superheat read by controller for AC circuit 2
POS2
Number of steps valve is open (0-6386) for AC circuit 2
PRS2
Pressure read by the transducer (0-153 PSI, gauge) for AC
circuit 2
TMP2
Temperature read by the temperature sensor (-50 to 103°F) for
AC circuit 2
TST2
Saturated temperature for AC circuit 2
AC2, PDN2
AC2 when in normal operation, PDN2 when in pumpdown for
AC circuit 2
R22, 134A, 407C, 404A, R507
R22 for refrigerant R-22, 134A for refrigerant R-134a, 407C for
refrigerant R-407C, and 404A for refrigerant R-404A and R507
for refrigerant R-507.
Note:
Not all controllers have both
R-507 and R-407C.
LGE2, SML2, MED2, ESX2
LGE2 if the EEV used is an SEI-50 or larger for AC circuit 2.
SML2 if the EEV used is smaller than an SEI-25 for AC circuit 2.
MED2 if the EEV used is a SEI-25 for AC circuit 2.
ESX2 if the EEV used is a ESX for AC circuit 2.
SSP2
Superheat set point (0 to 16°F) for AC circuit 2. Default is
10°F.
MOP2
Maximum operating suction pressure set point (0 to 153 PSI)
for AC circuit 2. Default is 153 PSI.
CTS2
Cut out suction pressure set point for AC circuit 2 (0 to 153 PSI)
CLP2
Calibrate pressure transducer for AC circuit 2
CLT2
Calibrate temperature sensor for AC circuit 2
PRO2
Proportional gain set point for AC circuit 2. Number of steps
per degree that superheat is above or below the superheat set
point (5 to 255 steps per degree). Default is 45 for the LGE2
setting, 22 for the MED2 setting, or 11 for the SML2 setting.
INT2
Integral set point for AC circuit 2. Number of seconds the con-
troller waits to update the reference valve position. (1 to 120
seconds). Default is 10 seconds.
DER2
Derivative setpoint for valve 2. Advanced algorithm parameter
that determines the slope of the change control point. Default is
zero.
DON2
Time delay in seconds between end of pumpdown and com-
pressor start when Relay 1 is used to pilot the compressor con-
tactor. The pre-opens the valve before compressor start to avoid
nuisance low pressure safety trips. 2 seconds.
DOF2
Time in seconds that the valve is shut before the compressor
Relay 1 opens to stop the compressor. Allows refrigerant pump-
down/pumpout. Default is 2 seconds.
DST2
Used with DON2. Number of steps to pre-open the valve before
compressor start. Default varies with valve size.
Page 4
CHILLER P/T CONTROLLER WIRING SCHEMATIC*
© 2008 Sporlan Division, Parker Hannifin Corp., 206 Lange Drive, Washington, Missouri 63090
*Only valve 1 shown, valve 2 connected in similarly.
