SLC-82XX and SLC-83XX
Single Loop Proportional Temperature
Controller with Sensor
General Instructions
APPLICATION
Electronic temperature controller for single loop control of
media in ducts, tanks and liquid lines.
SPECIFICATIONS
Construction: Self-contained proportional temperature
controller with integral setpoint and sensing element. Reset
ratio selection available on all units.
Setpoint Dial Range: See Table 1.
Throttling Range: Pin selectable (3, 8, 12 or 20°F); factory
set at 8°F for 3 Vdc output change.
Power Requirements: 20 Vdc (+1.0, -1.5), 13 mA.
Output Voltage: 2 to 15 Vdc direct acting (D.A.); field
changeable to 15 to 2 Vdc reverse acting (R.A.). Calibrated
at 7.5 Vdc when dial setting matches temperature sensed by
integral sensor.
Controlled Devices: Maximum of six TAC System 8000
devices or two MP-5210 actuators.
Selectable Reset Ratio: All units provided with a selectable
reset ratio on a prewired DIP switch for 0.7:1, 1:1, 1.5:1 or
15:1 (0.7:1 equivalent to Honeywell’s 1.5:1).
Sensing Element: 1000 ohms, ±0.1% at 70°F. Balco
changes 2.2 ohms per 1°F at 70°F.
Environment:
Ambient Temperature Limits,
Shipping and Storage -40 to 160°F (-40 to 71°C).
Operating 40 to 140°F (4 to 60°C) without digital
display. 40 to 130°F (4 to 54°C) with digital display.
Humidity, 5 to 95% RH, non-condensing.
Locations, NEMA Type 1 indoor only.
Cover: Beige colored plastic with brushed bronze metal
insert.
Mounting: See Table 1.
Dimensions: See Table 1.
Digital Temperature Display: Long life battery powered
digital temperature display in easy to read 1/4" (6 mm)
numerals. Available only as factory built, specify as
SLC-XXXX-800.
Connections:
To Controlled Device, Red, yellow and blue pigtail leads
provided for low voltage connection to TAC System 8000
controlled devices.
To Optional Reset Ratio Sensor, All units are provided
with two (2) white pigtail leads for connection to optional
reset sensor (typically TS-8501).
Terminate all pigtail leads in the 4 x 4 electrical box
provided. For additional information on TAC System 8000
wiring, see Wiring Controlled Devices to Controller
section.
ACCESSORIES
AD-8122
AD-8123
AD-8124
AT-215
TS-8101
TS-8131
TS-8201
TS-8241
TS-8261
TS-8405
TS-8422
TS-8501
PKG-1093
Signal adaptor for dual outputs (two direct
acting)
Signal adaptor for dual outputs (one direct, one
reverse acting)
Signal adaptor for dual outputs (one reverse,
one direct acting)
Stainless steel bulb well
Room temperature sensor
Room button type sensor
Duct/ immersion sensor
Diffuser sensor
Light fixture sensor
5’ (1.5 m) averaging sensor
22’ (6.7 m) sensor
Outdoor air sensor
Digital thermometer battery replacement kit
OPTIONS
For digital temperature display, specify -800 suffix (available only as
factory installed option).
Printed in U.S.A.
6-10
© Copyright 2010 Schneider Electric All Rights Reserved.
F-22985-5
Figure-1 Typical Wiring Diagram.
Table-1 SPECIFICATIONS.
Type
Immersion
Sensor
6" (203 mm) Probe
6" (203 mm) Probe
Duct
5’ (1.5 m) Averaging
22’ (6.7 m)
Averaging
2
Part Number
SLC-8222
SLC-8222-800
SLC-8223
SLC-8223-800
SLC-8224
SLC-8224-800
SLC-8226
SLC-8226-800
SLC-8227
SLC-8227-800
SLC-8228
SLC-8228-800
SLC-8322
SLC-8322-800
SLC-8323
SLC-8323-800
SLC-8324
SLC-8324-800
SLC-8326
SLC-8326-800
SLC-8327
SLC-8327-800
SLC-8328
SLC-8328-800
SLC-8332
SLC-8332-800
SLC-8333
SLC-8333-800
SLC-8334
SLC-8334-800
SLC-8336
SLC-8336-800
SLC-8337
SLC-8337-800
SLC-8338
SLC-8338-800
SLC-8342
SLC-8342-800
SLC-8343
SLC-8343-800
SLC-8344
SLC-8344-800
SLC-8346
SLC-8346-800
SLC-8347
SLC-8347-800
SLC-8348
SLC-8348-800
Setpoint Dial
Range
0 to 100°F
60 to 160°F
120 to 220°F
-20 to 40°C
15 to 70°
50 to 105°
0 to 100°F
60 to 160°F
120 to 220°F
-20 to 40°C
15 to 70°C
50 to 105°C
0 to 100°F
60 to 160°F
120 to 220°F
-20 to 40°C
15 to 70°C
50 to 105°C
0 to 100 °F
60 to 160°F
120 to 220°F
-20 to 40°C
15 to 70°C
50 to 105°C
Digital Display
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Mounting
Install Controller
Directly to an AT-215
Bulb Well (order
separately)
Dimensions
Controller :
4-3/8" high x 4-1/8
wide x 4-1/2" deep
(111 mm x 105 mm x
114 mm)
Sensor:
6" (203 mm) Insertion
Length
Install to Duct by
Means of Duct
Mounting Plate
Provided. A 2-1/2"
(64 mm) Standoff
Provides Clearance
for Duct Insulation if
Present.
Controller:
4-1/8" high x 4-1/8
wide x 4-1/2" deep
(111 mm x 105 mm x
114 mm)
Install to Duct by
Means of Duct
Mounting Plate
Provided. A 2-1/2"
(64 mm) Standoff
Provides Clearance
for Duct Insulation if
Present.
Controller:
4-3/8" high x 4-1/8
wide x 4-1/2" deep
(111 mm x 105 mm x
114 mm)
Install to Duct by
Means of Duct
Mounting Plate
Provided. A 2-1/2"
(64 mm) Standoff
Provides Clearance
for Duct Insulation if
Present.
Controller:
4-3/8" high x 4-1/8
wide x 4-1/2" deep
(111 mm x 105 mm x
114 mm)
© Copyright 2010 Schneider Electric All Rights Reserved.
Sensor: 6" (203 mm)
Insertion Length
Sensor: 5’ (1.5 m)
Insertion Length
Sensor: 22’ (6.7 M)
Insertion Length
F-22985-5
RATIO SELECTION TABLE.
Change in Water Temperature for Different Ratios as Outdoor Temperature Drops from 70°F to
Design Temperature
Outdoor Temp.
(°F)
Ratio
-30
0.7 to 1.0*
1.0 to 1.0
1.5 to 1.0
70 to 220
70 to 170
70 to 137
80 to 230
80 to 180
80 to 127
-20
0.7 to 1.0*
1.0 to 1.0
1.5 to 1.0
70 to 205
70 to 160
70 to 130
-10
0.7 to 1.0*
1.0 to 1.0
1.5 to 1.0
0
Dial Set at
100°F
Dial Set at
110°F
Dial Set at
120°F
90 to 240
90 to 190
90 to 157
100 to 250
100 to 200
100 to 167
110 to 260
110 to 210
-
120 to 270
120 to 220
-
80 to 215
80 to 170
80 to 140
90 to 225
90 to 180
90 to 150
100 to 235
100 to 190
100 to 160
110 to 245
110 to 200
-
120 to 255
120 to 210
-
70 to 190
70 to 150
70 to 123
80 to 200
80 to 160
80 to 133
90 to 210
90 to 170
90 to 143
100 to 220
100 to 180
100 to 153
110 to 230
110 to 190
-
120 to 240
120 to 200
-
0.7 to 1.0*
1.0 to 1.0
1.5 to 1.0
70 to 175
70 to 140
70 to 117
80 to 185
80 to 150
80 to 127
90 to 195
90 to 160
90 to 137
100 to 205
100 to 170
100 to 147
110 to 215
110 to 180
-
120 to 225
120 to 190
-
+10
0.7 to 1.0*
1.0 to 1.0
1.5 to 1.0
70 to 160
70 to 130
70 to 110
80 to 170
80 to 140
80 to 120
90 to 180
90 to 150
90 to 130
100 to 190
100 to 160
100 to 140
110 to 200
110 to 170
-
-
+20
0.7 to 1.0*
1.0 to 1.0
1.5 to 1.0
70 to 145
70 to 120
70 to 103
80 to 155
80 to 130
80 to 113
90 to 165
90 to 140
90 to 123
100 to 175
100 to 150
100 to 133
110 to 185
110 to 160
-
120 to 150
120 to 170
-
+30
0.7 to 1.0*
1.0 to 1.0
1.5 to 1.0
70 to 130
70 to 110
70 to 97
80 to 140
80 to 120
80 to 107
90 to 150
90 to 130
90 to 117
100 to 160
100 to 140
100 to 127
110 to 170
110 to 150
-
120 to 180
120 to 160
-
Dial Set at 70°F Dial Set at 80°F Dial Set at 90°F
*0.7 to 1.0 (Honeywell = 1.5 to 1.0) – 1.0°F O.A. change, hot water changes 1.5°F
Figure-2 Hot Water Control with Outside Air Temperature Reset.
F-22985-5
© Copyright 2010 Schneider Electric All Rights Reserved.
3
PRE-INSTALLATION
Inspection
Visually inspect the carton for damage. If damaged, notify the
appropriate carrier immediately. If undamaged, visually
inspect the device for obvious defects. Return damaged or
defective products.
Required Installation Items
Figure-3 Digital Thermometer Battery Location.
• Wiring diagrams
• Tools (not provided):
Digital Thermometer Theory of Operation
Appropriate screwdriver for mounting screws and terminal connections
3/16" (4.8 mm) or smaller slot screwdriver for digital thermometer battery installation
Appropriate drill and drill bit for mounting screws
• Digital thermometer battery and cover, provided in
separate package for SLC-8XXX-800 models only
• Appropriate accessories
• Mounting screws (2) #10 x 3/4" sheet metal, provided for
SLC-832X, SLC-833X and SLC-834X
INSTALLATION
After installing the battery and battery cover, the display may
flash “LLL” three times. The temperature being sensed should
then be displayed.
If battery becomes low, the display will fade and eventually
disappear. If this condition occurs, replace battery
(PKG-1093).
If the low limit of the digital indicator is exceeded, the display
will continually flash “LLL” until the temperature rises above
the low limit.
If the high limit of the digital indicator is exceeded, the display
will continually flash “HHH” until the temperature lowers below
the high limit.
The display is updated approximately every 10 seconds.
Caution:
1. Installer must be a qualified, experienced technician.
2. Disconnect power supply (line power) before installation
to prevent equipment damage.
3. Make all connections in accordance with the wiring
diagram, and in accordance with national and local
electrical codes. Use copper conductors only.
4. Do not exceed ratings of the device(s).
MOUNTING INSTRUCTIONS
Caution: Avoid locations where excessive vibration,
moisture, corrosive fumes or vapors are present, NEMA Type
1 covers are intended for indoor use primarily to provide a
degree of protection against contact with the enclosed
equipment.
Digital Thermometer Battery & Cover
Figure-4 SLC-822X Immersion Controller’s Dimensions.
SLC-822X Mounting (Requires AT-215 Bulb Well)
1. Mount AT-215 bulb well on the liquid line or tank (see
Figure 5).
2. Thread the controller into AT-215 bulb well that has been
installed in a liquid line or tank.
See Figure 3.
1. Remove battery from package.
2. Remove battery cover. Push down and turn (gently) CCW
1/8 turn with a 3/16" (4.8 mm) or smaller screwdriver.
Note: The AT-215 bulb well should be filled with a
temperature conductive grease, TAC Part Number M-500,
prior to element insertion for optimum medium temperature
sensing.
3. Place battery in the cover compartment with the positive
(+) side up.
4. Place battery cover over the battery. Push down and turn
(gently) CW 1/8 turn with 3/16" (4.8 mm) or smaller
screwdriver.
5. Temperature display should be present. If no display,
repeat steps 2 through 4. If still no display, replace battery
from battery replacement kit (PKG-1093). If no display,
temperature display unit is defective; replace with a
functional display.
4
© Copyright 2010 Schneider Electric All Rights Reserved.
F-22985-5
2. Use the mounting plate supplied as a template (or refer to
Figure 8 for duct mounting dimensions) for mounting hole
location.
3. Mount the sensor enclosure to the duct using the (2) # 10
x 3/4" sheet metal screws provided.
Figure-5 Immersion Mounting.
Figure-6 SLC-832X Duct Controller’s Dimensions.
Figure-8 SLC-833X or SLC-834X Averaging Duct
Controller’s Dimensions.
SLC-832X Mounting
1. Determine the controller mounting location on the duct.
The sensing element is located within 1" of the end of the
sensing probe, and it should be located in the air stream
typical of the temperature requiring sensing.
2. Use the mounting plate supplied as a template (or refer to
Figure 6 for duct mounting dimensions) for mounting hole
location.
3. Mount the sensor to the duct using the (2) #10 x 3/4"
sheet metal screws provided.
Figure-9 SLC-833X or SLC-834X Averaging Duct Controller
Mounting.
DEFINITIONS AND NOMENCLATURE
Mode of Operation
Figure-7 SLC-832X Duct Mounting.
SLC-833X or SLC-834X Mounting
1. Determine the controller enclosure mounting location on
the duct (see Figure 9). The sensor should be serpentined
through the duct in a pattern that will expose it to all areas
where variations of temperature may occur. If duct cannot
be entered, wrap the element around a section of conduit
and place the conduit diagonally in the duct.
Direct Acting Control (DA): Increase in temperature at the
primary sensor causes the controller output (yellow to blue
leads) signal to increase.
Revers Acting Control (RA): Increase in temperature at the
primary sensor causes the controller output (yellow to blue
leads) signal to decrease.
Reverse Reset (RR) Control Only: Decrease in
temperature at resetting element (white leads) Raises the
SLC-8XXX controller’s temperature setpoint upward.
Throttling Range: Throttling Range (T.R.) is defined as the
°F change at the primary temperature sensor in order to cause
a 3 Vdc controller output signal change.
Caution: Do no make sharp bends in the element.
F-22985-5
© Copyright 2010 Schneider Electric All Rights Reserved.
5
2. “Pull” all wires required.
3. Connect all control and optional reset sensing wiring to
the controller leads. The 4 x 4 box cover can be removed
for wiring by loosening the two (2) cover screws.
Note: The 4 x 4 cover plate is permanently attached to the
base by a metal strap to insure that the sensor wires are not
placed under tension.
Figure-10 SLC-8XXX Terminal Nomenclature
Reset DIP Switch Nomenclature
The reset ratio is defined as the temperature change at the
reset sensing element required to reset the SLC control point
1°F (0.5°C) higher. DIP switch ratios of 0.7:1, 1:1, 1.5:1 and
15:1 are provided. A controller with a DIP switch setting of 0.7
will increase the control point temperature 1.5°F (0.8°C) for a
1°F (0.5°C) change at the reset element. See Figure 11 for
DIP switch location.
WIRING OF CONTROLLED DEVICES TO
CONTROLLER
Types of Controlled Devices and Their Power
Supplies
1. Filtered and Regulated Power Supplies:
All TAC System 8000 controlled devices except
MP-52XX and MP-54XX series actuators.
2. Filtered and Unregulated Power Supplies:
MP-54XX series actuators.
3. Unfiltered and Unregulated Power Supplies:
MP-52XX series actuators.
General Rules for Wiring Controllers to Controlled
Devices
1. Never connect red lead (or +20 terminals) of any controlled
device which has a regulated power supply to the red lead
(or +20 terminal) of any other controlled device.
2. Controlled devices with unfiltered and unregulated power
supplies must be filtered. TAC System 8000 controllers
will provide filtering for a maximum of two (2) controlled
devices by connecting the two red leads (+20 terminals)
together at the controller’s red lead (+20 terminal).
3. Controlled devices with filtered and unregulated supplies:
Up to six (6) controlled devices with the red leads (+20
terminals) can be connected together. Number of units
paralleled depends on the current (mAdc) requirements
of the controller or adaptor.
4. See Table 2 for devices and their internal supplies.
Table-2 POWER SUPPLIES.
Figure-11 SLC-8XXX Controller Showing Location of Reset
DIP Switches.
WIRING
Make all electrical connections according to installation wiring
diagrams. Comply with national and local electrical codes.
Use copper conductors only.
To install, proceed as follows:
1. Wiring for the controllers is shown in Figures 12 and 13.
6
Filtered and
Regulated
Filtered and
Unregulated
Unfiltered and
Unregulated
CC-8101
CC-8102
CC-8103
CC-8104
CC-8111 Series
CC-8118 Series
CC-8218 Series
CP-8301 Series*
CP-8161 Series
CP-8425 Series
CP-8502 Series
CP-8511
CP-8513
PP-8121
PP-8516
MP-5XX
MP-54XX
MP-1233
MS-8XXXX
Actuators
MP-52XX
Actuators
*Except CP-8301-101 which does not have a power supply.
© Copyright 2010 Schneider Electric All Rights Reserved.
F-22985-5
ADJUSTMENTS
Table-3 WIRE LENGTH.
Length of Run in Feet
Wire Gauge
Controller to
Controlled
Device
Controller to
Adaptor
Adaptor to
Controlled
Device
22
-
-
-
18
1000
1000
1000
16
2250
2250
2250
14
4000
4000
4000
Caution: Use 18 gauge three-conductor twisted shielded
wire when it becomes necessary to run or install leads in the
same conduit with power wiring or when high RFI/EMI
generating devices are near. Connect the shield to the BLUE
lead at the SLC-8XXX controller only.
Setpoint Dial: Turn the setpoint dial (located on front of
controller) to the desired temperature setting. Normally, no
further adjustments are required.
Throttling Range: Throttling range settings of 3, 8, 12 or
20°F. Factory set at 8°F. Throttling range is determined by
placing the T.R. jumper (BROWN) on the proper T.R. pin. See
Figure 14 for details. For other T.R.’s use the extended T.R.
jumper AD-8969-901. The T.R. will be the sum of the value of
the T.R. pins connected.
Control Action: Factory set for direct acting (D.A.). Reverse
acting (R.A.) can be selected by moving the jumpers as shown
in Figure 14.
Reset Ratio: Reset ratios of 0.7:1, 1:1, 1.5:1 and 15:1. Reset
ratio is determined by positioning a DIP switch on the back
side of the controller (after SLC controller is removed from 4 x
4 handy box). See Figure 15 for details.
Figure-12 Typical Wiring without MP-52XX Actuators.
Figure-13 Typical Wiring with MP-52XX Actuators.
F-22985-5
© Copyright 2010 Schneider Electric All Rights Reserved.
7
CHECKOUT
Note: The SLC-82XX and SLC-83XX have been factory
calibrated to produce a 7.5 Vdc output signal at the YELLOW and
BLUE leads (TO+ AND TS-) when the setpoint and the
temperature at the primary sensor are equal. Optional reset
sensor must be disconnected.
1. Verify wiring per wiring diagram.
2. Measure with a 20,000 ohm per Vdc VOM.
a. Power Supply 20 Vdc: RED (+) to BLUE (-) wires or test
point pins TS- and TS+ (+end of the 47µf. capacitor).
b. Output 2-15 Vdc: YELLOW (+) to BLUE (-) wires to TO+
and TS - test pins. The voltage varies between 2-15 Vdc
as dial knob is rotated.
Figure-14 Throttling Range and Control Action Selection.
3. Replace controller if it is defective.
CALIBRATION
Caution: To assure proper controller operation, if reset is not
used, all DIP switches must be in OFF position and ends of white
wires (auxiliary sensor pigtails) must be taped or protected.
If calibration is necessary, proceed as follows:
1. Connect a 20,000 ohm per Vdc VOM between the YELLOW (+)
and BLUE(-) leads or TO+ and TS- pins on the controller.
2. Place all ratio switches to the OFF position.
3. Measure the temperature at the primary sensor with an
instrument with a ±1°F accuracy or better.
4. Loosen set screw on setpoint knob and remove knob.
5. Adjust setpoint potentiometer until VOM reads 7.5V ±0.1 Vdc.
6. Place setpoint knob over potentiometer shaft and align pointer
with temperature on scale equal to temperature displayed on
instrument at primary sensor. Tighten set screw, taking care
not to turn potentiometer shaft in the process.
7. Controller is calibrated.
MAINTENANCE
Regular maintenance of the total system is needed to assure
sustained optimum performance.
Figure-15 Ratio Reset.
For SLC-8XXX-800 models only, if the battery becomes low, the
display will fade and eventually disappear. Replacement battery kit
(PKG-1093).
FIELD REPAIR
These controllers are not field repairable. Replace a defective
controller with a functional unit.
On October 1st, 2009, TAC became the Buildings business of its parent company Schneider Electric. This document reflects the visual identity of Schneider Electric,
however there remains references to TAC as a corporate brand in the body copy. As each document is updated, the body copy will be changed to reflect appropriate
corporate brand changes.
Copyright 2010, Schneider Electric
All brand names, trademarks and registered
trademarks are the property of their respective
owners. Information contained within this
document is subject to change without notice.
F-22985-5
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P.O. Box 2940
Loves Park, IL 61132-2940
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