Parker Sporlan SUBCOOL-O-MATIC User guide

The Mechanical Subcooler controller was designed as a simple and eco-
nomical means of controlling an Electric Expansion Valve on almost any
mechanical subcooling system. True pressure and temperature superheat
ensures accurate control and safety. All components (valves, controller,
sensors) must be supplied by Sporlan to assure compatibility and proper
operation. Please see Tables 3 and 4 on page 4 for correct part numbers.
Pressure-temperature superheat control for one of four common refriger-
ants may be selected. Controllers can be ordered configured for R-22,
R-404A, R-422D, and R-507. The refrigerant type can be changed in the
field by use of the optional Panel Display, part number 958737. Onboard
readouts show actual leaving liquid temperature, superheat, suction pres-
sure, and liquid temperature set point. Two push buttons are provided
on the board, to change the liquid temperature set point, as well as open,
close, or position the valve.
As illustrated, the controller is provided with hardware and input/output
connections for a number of user specified purposes. See below:
•Onevalvecontrol
•Onepressureinput(transducersuppliedbySporlanorCustomer)
•Onedigitalinput(fromexternalswitchesorrelays)
•Twotemperatureinputs(Sporlansuppliedsurfaceorairsensors)
•Optionalbatterybackupforonboardclockandfail-safevalveclosure
•TwodigitLEDreadout
•Green&redLEDstatusindicators
•Twopushbuttonsforsettingsuperheat,etc.
•PanelDisplayjack
INSTALLATION
When handling the boards, electrostatic protection procedures
should be followed. The person installing the controller should be
grounded through a ground strap. If ground straps and other ESD
protection are not available, handle the board only by the edges
of the board. Another fairly safe place to hold the board is by the
battery holders. DO NOT TOUCH ANY COMPONENTS ON THE
BOARD EXCEPT THE BATTERY HOLDER OR RELAYS.
1. The board should be mounted in a dry, protected environment using
the5mountingholes.Makesurenoneoftheprintedcircuitpathsor
components are touching the metal panel or any thing else conductive.
2. Ifonlyonevalveisused,connectionsaretobemadetoterminalblock
closest to display readout and push buttons PB1 and PB2.
3. Controllers are configured for pressure temperature superheat.
4. Connect suction temperature sensor to TS2. The sensor is not polar-
ized. The sensor should be mounted to the suction line after the evapo-
rator using the furnished clamps.
5. Connect leaving liquid temperature sensor to TS1. The sensor is not
polarized.
6. The pressure transducer should be mounted on the suction line near
the temperature sensor location. Sporlan has supplied transducer
cables with two combinations of wire colors. Connect the wires to the
terminals on the board in accordance with Table 1 below. If the cable
issplicedinthefieldtoextenditslength,caremustbetakentoassure
that the new wire is properly connected to the board.
7. DI1 is a digital input used to close the valve. A short or closed contact
from an external relay will close the valve for pump down.
8. Powerisconnectedtotheterminalmarked24VAC.Powerrequirements
are 24 volts AC at 40 VA. For protection from electrical transients,
connect one MOV varistor between one leg of the input voltage of the
24 VAC transformer and earth ground. See Figure 4. Connect a second
MOV varistor between the other leg of the input voltage of the 24 VAC
transformer to earth ground. Two MOV varistors are included with the
controller.
OPERATION
When first powered up the numeric display will show actual leaving liquid
temperature.
1. Whenpowerisapplied,thegreenLEDwillbeonconstantlyandthe
2 digit display will show the leaving liquid temperature as read by the
controller.TheredLEDisthenegativesign.IftheredLEDisoff,the
2digitdisplayreadingisbetween0to99°F.IftheredLEDison,the
2 digit display reading is between -50 and 0°F. Pressing button PB1
at any time will cause the 2 digit display to show the leaving liquid
temperature as read by the controller.
2. Pressing button PB2 at any time will cause the 2 digit display to
show the superheat as read by the controller. The 2 digit display read-
ing is between 0 to 99°F. Pressing button PB2 at any time will cause
the 2 digit display to show the superheat as read by the controller.
3. Pressing buttons PB1 and PB2 simultaneously at any time will cause
the 2 digit display to show the suction pressure as read by the control-
ler.TheredLEDisthe100’sdigit.IftheredLEDisoff,the2digit
displayreadingisbetween0to99PSIG.IftheredLEDison,the2
digitdisplayreadingisbetween100and153PSIG.
4. Whenever the controller is in pumpdown or defrost, the 2 digit will
display dF.
5. Pressing and holding buttons PB1 and PB2 simultaneously until the
greenLEDstartsblinkingwillcausethe2digitdisplaytoshowthe
leavingliquidtemperaturesetpoint.WhilethegreenLEDisblink-
ing, pressing PB1 will increment the set point by 1°F. While the
One Digital Input
One Pressure
Input
One Valve Input
Two Temperature
Inputs
Two Set Point
Pushbuttons
Holders for
Optional Fail
Safe Batteries
Two Digit
LED Display
Green
Status LED
Red Status LED
Panel Display Jack
24 Volt AC
50/60 Hz.
40 VA Input
Figure 1
Terminals for Valve 1 shown.
SUBCOOL-O-MATIC
MECHANICAL SUBCOOLER CONTROLLER
Installation and Servicing Instructions
CONTROLLER
TERMINAL
OLD PIGTAIL
LEADS
NEW HERMETIC
CABLE
1+ or 2+ Red Black
1- or 2- Black Green
1S or 2S Green White
Table 1

green LED is blinking, pressing PB2 will decrement the set point
by 1°F. Do not press any pushbutton for 5 to 10 seconds or until the
green LED stops blinking. The controller will use the last display
for the leaving liquid temperature set point and will go back to
normal operation.
REMOTE PANEL DISPLAY
A remote panel display is available that will allow access to all the param-
eters that the controller uses. The Remote Panel Display can be used as a
set point tool in production, a diagnostic tool in the field or as a permanent
readout device on the controller. A five foot cable is included.
Plugtheremotedisplayintothetelephonejack(J9)onthecontroller.The
following is a list of readings available:
POSN Number of steps the electric expansion valve is open
SUPH Superheat read by controller
LQTP Temperature read by the leaving liquid temperature sensor (-50
to 102°F.)
PRES Pressure read by the transducer (0-153 psi absolute or gauge)
TOUT Temperature read by the suction temperature sensor
(-50 to 102°F.)
TSAT Saturated Temp. Based on suction pressure and refrigerant
selected
COOL, PMDN
COOLwheninnormaloperation,PMDNwheninpumpdown
R22, 404A, R422, R507
R22 for refrigerant R22, 404A for refrigerant R404A, R422 for
refrigerant R422D, and R507 for refrigerant R507.
LARG, SMAL, MEDM
LARG if the EEV used is an SEI-50 or larger. SMAL if the
EEV used is smaller than an SEI-30. MEDM if the EEV used is
a SEI-30.
SHSP Superheat set point (5 to 30°F.)
LQSP LeavingliquidTemperaturesetpoint(-40to100°F)
GAIN Proportional gain set point. Number of steps per degree that
liquid temperature is above or below its set point (0 to 255 steps
perdegree).Defaultis44forLARGsetting,22forMEDMset-
ting,and10forSMALsetting.
INTG Integral set point. Number of seconds the controller waits to
update the reference valve position. (1 to 120 seconds). Default
is 50 seconds.
DERI Derivative set point. Number of steps the controller opens or
closes the valve based on the rate the leaving liquid temperature
is changing (0 to 255 seconds). Default is 20.
Pressing ENTER will toggle display between one of the displays
described above and the numeric value read for that particular display.
Pressing UP will scroll through the menu from POSN to SUPH, etc.
Pressing DOWN will scroll through the menu the opposite way.
POSN MODE
Press and hold UP button and ENTER button for 5 seconds to put the
valve in manual valve position. The number of steps open will be dis-
playedandthe1000’sdigitwillblink.
Pressing the UP button will open the valve 1000 steps.
Pressing the DOWN button will close the valve 1000 steps.
Pressing the ENTER button will change the flashing digit from 1000’s
digittothe100’sdigit.
Pressing the UP button will open the valve 100 steps.
Pressing the DOWN button will close the valve 100 steps.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom100’sdigit
tothe10’sdigit.
Pressing the UP button will open the valve 10 steps.
Pressing the DOWN button will close the valve 10 steps.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom10’sdigit
tothe1’sdigit.
Pressing the UP button will open the valve 1 step.
Pressing the DOWN button will close the valve 1 step.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom1’sdigit
tothe1000’sdigit.
Press and hold UP button and ENTER button for 5 seconds will put the
controllerinnormalcontrol.Thedigitswillstopblinking.
SHSP MODE
Press and hold UP button and ENTER button for 5 seconds to enable the
superheatsetpointtobechanged.Thesetpointisdisplayedandthe100’s
digitwillblink.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom100’sdigit
tothe10’sdigit.
Pressing the UP button will increase the set point by 10 degrees.
Pressing the DOWN button will decrease the set point by 10 degrees.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom10’sdigit
tothe1’sdigit.
Pressing the UP button will increase the set point by 1 degree.
Pressing the DOWN button will decrease the set point by 1 degree.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom1’sdigit
tothe100’sdigit.
Press and hold UP button and ENTER button for 5 seconds will save the
setpoint.Thedigitswillstopblinking.
LQSP MODE
Press and hold UP button and ENTER button for 5 seconds to enable
the leaving liquid temperature set point to be changed. The set point is
displayedandthe100’sdigitwillblink.
Pressing the UP button will increase the set point by 100 degrees.
Pressing the DOWN button will decrease the set point by 100 degrees.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom100’sdigit
tothe10’sdigit.
Pressing the UP button will increase the set point by 10 degrees.
Pressing the DOWN button will decrease the set point by 10 degrees.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom10’sdigit
tothe1’sdigit.
Pressing the UP button will increase the set point by 1 degree.
Pressing the DOWN button will decrease the set point by 1 degree.
Page 2
Figure 2

Page 3
Pressing the ENTERbuttonwillchangetheflashingdigitfrom1’sdigit
tothe100’sdigit.
Press and hold UP button and ENTER button for 5 seconds will save the
setpoint.Thedigitswillstopblinking.
GAIN or DERI MODE
Press and hold UP button and ENTER button for 5 seconds to enable the
proportional gain set point to be changed. The set point is displayed and
the100’sdigitwillblink.
Pressing the UP button will increase the set point by 100 steps per degree.
Pressing the DOWN button will decrease the set point by 100 steps per
degree.
Pressing the ENTER button will change the flashing digit from 100’s
digittothe10’sdigit.
Pressing the UP button will increase the set point by 10 steps per degree.
Pressing the DOWN button will decrease the set point by 10 steps per
degree.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom10’sdigit
tothe1’sdigit.
Pressing the UP button will increase the set point by 1 step per degree.
Pressing the DOWN button will decrease the set point by 1 step per
degree.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom1’sdigit
tothe100’sdigit.
Press and hold UP button and ENTER button together for 5 seconds to
savethesetpoint.Thedigitswillstopblinking.
INTG MODE
Press and hold UP button and ENTER button for 5 seconds to enable the
integralsetpointtobechanged.Thesetpointisdisplayedandthe100’s
digitwillblink.
Pressing the UP button will increase the set point by 100 seconds.
Pressing the DOWN button will decrease the set point by 100 seconds.
Pressing the ENTER button will change the flashing digit from 100’s
digittothe10’sdigit.
Pressing the UP button will increase the set point by 10 seconds.
Pressing the DOWN button will decrease the set point by 10 seconds.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom10’sdigit
tothe1’sdigit.
Pressing the UP button will increase the set point by 1 second.
Pressing the DOWN button will decrease the set point by 1 second.
Pressing the ENTERbuttonwillchangetheflashingdigitfrom1’sdigit
tothe100’sdigit.
Press and hold UP button and ENTER button together for 5 seconds to
savethesetpoint.Thedigitswillstopblinking.
SELECTING REFRIGERANTS
If display reads one of the refrigerants, press and hold 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 UP button and ENTER button for together 5 seconds. The con-
trollerwillsaveandusethatrefrigerant’stableforsaturatedtemperature.
Thedigitswillstopblinking.
CHANGING VALVE TYPES
If display reads LARG, SMAL, or MEDM, pressing and hold UP button
and ENTER button for 5 seconds will 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 display between the dif-
ferent valve types. Press and hold UP button and ENTER button together
for5secondstosavetheselection.Thedigitswillstopblinking.
Evaporator
DI1
1-
1S
1+
R = Red
G = Green
W = White
B = Black
TS2 - Temp. Sensor 2
TS1 - Temp. Sensor 1
PB1 PB2
8.8.
Temperature
Sensor
Temperature
Sensor
Subcooled
Liquid Outlet
ESX, SER,
SEI, SEH
TS2TS1 B W G R 1+ 1S 1- DI1
24 VAC
24 VAC
40 VA
Transformer
Pumpdown
Relay
(optional)
Pressure
Transducer
*gray wire for ESX only
** supplied
† ESX
R = Orange
G = Yellow
W = Red
B = Black
†
LINE
Mov**
Mov**
*
2.5”
1.98”
1.37”
8.25”
5.0”
.25” typical
.25”
Figure 3
Board Dimensional Drawing
Figure 4
Subcooler Controller Wiring Schematic

Page 4
SD-290-509© 2009 Sporlan Division, Parker Hannifin Corporation
PROGRAM*
ITEM NUMBER DESCRIPTION PROGRAM DEFAULT SETPOINTS
952971 SUBCOOL -O-MATIC
R-507 small valve P0033
R507 SMAL
SHSP=10 LQSP=45
GAIN=10 ING=50
DERI=20
952972 SUBCOOL -O-MATIC
R-404A small valve P0033
404A SMAL
SHSP=10 LQSP=45
GAIN=10 ING=50
DERI=20
952973 SUBCOOL -O-MATIC
R-22 small valve P0033
R22 SMAL
SHSP=10 LQSP=45
GAIN=10 ING=50
DERI=20
952974 SUBCOOL -O-MATIC
R-134A small valve P0033
134A SMAL
SHSP=10 LQSP=45
GAIN=10 ING=50
DERI=20
953050 SUBCOOL -O-MATIC
R-507 medium valve P0033
R507 MED
SHSP=10 LQSP=45
GAIN=22 ING=50
DERI=20
953068 SUBCOOL -O-MATIC
R-404 large valve P0033
R404 LRG
SHSP=10 LQSP=45
GAIN=22 ING=50
DERI=20
ACCESSORIES
PART NUMBER DESCRIPTION NOTES
952740 Transducer Kit 1 required per controller
952662 Temperature Sensor Kit 2 required per controller
Can be used as suction or subcooled liquid sensor.
958737 Panel Display Not required for normal operation. Suggested for
field troubleshooting or parameter modification.
953276 SMA-12 Not required for normal operation.
Suggested for valve test & troubleshooting.
*Program number, eg. P0033 will be followed by revision number, eg. -02.
Table 3
Table 4
TROUBLESHOOTING
ALARMS
Subcool-O-Matic boards with production dates after 4-16-07 include
alarms and fail safe features. Failed mis-wired sensors will trigger an
alarm. When triggered, an alarm code will be displayed on the 2 digit
onboard display and on the remote panel display, when used. Each alarm
indicates that the referenced sensor is mis-wired, disconnected or faulty.
The alarm will persist until the problem is corrected.
Since the liquid and suction temperature sensors are identical, no alarm
will be triggered if the sensors are placed in the incorrect location (i.e.
liquid sensor on the suction line) refer to Figure 4, however, superheat
readings and control will be inaccurate.
Failed temperature sensors will generally read extremely low resistance
or infinite resisitance when tested with an ohmmeter. Readings should be
takenwiththesensordisconnectedfromtheboard.
Pressure transducers are tested while connected to the board and powered.
Voltage between 1+ and 1- should be 5.0 volts DC. Voltage between 1-
and 1S will be between 0.5 and 4.5 volts DC.
Pressure transducers must be installed tight enough to depress the valve
stem in the fitting. Failure to do so will result in erroneous pressure read-
ingsandpossiblyleaks.
FAILSAFE
If the superheat falls below 2 degrees, the valve will shut within 80 seconds.
ALARM ONBOARD
DISPLAY
REMOTE
DISPLAY
Liquid temperature sensor LS LQSR
Suction (outlet) temp. sensor OS SCSR
Pressure transducer alarm PS PRSR
No alarm actual superheat NOAL
Table 2