aci Room Series Installation instructions

Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 1
Version: 1.0
I0000352
2.75"
(69.85 mm) 1.12" (28.55 mm)
4.50"
(114.30 mm)
ROOM, VERSION 1
[R]
FRONT
BOTTOM
RIGHT
FIGURE 1: ROOM DIMENSIONS
ROOM SERIES
Installation & Operation Instructions
ACI/XX-RSO-RS232-LCD
Phone: [phone]
Website: workaci.com
FIGURE 2: MOUNTING
COVER
#6-32 x 1”
MOUNTING SCREWS
LCD MODULE
Must be unplugged before
the sensor is mounted
BACKPLATE
OPTIONAL INSULATING
GASKET
CIRCUIT BOARD
PRECAUTIONS
• DO NOT RUN THE WIRING IN ANY CONDUIT
WITH LINE VOLTAGE (24/120/230 VAC).
• THE OPTIONAL ACI/LCD MUST BE POWERED
WITH EITHER A 24 VAC OR 9-35 VDC POWER
SOURCE.
MOUNTING INSTRUCTIONS
Separate the cover from the base. The ACI/LCD is
shipped as a two-piece unit. The LCD Module must
be unplugged from the 10 pin connector before the
base of the sensor may be mounted. Attach the base
directly to the wall or to a standard 2” x 4” junction
box using the (2) #6-32 x 1”screws provided.
Take care when mounting. Check local code for
mounting height requirements. Typical mounting
heights are 48-60” (1.2-1.5 m) o the ground and at
least 1.5’ (0.5 m) from the adjacent wall. The sensor
should be mounted in an area where air circulation is
well mixed and not blocked by obstructions.
*Reference FIGURE 2
For optimal temperature measurement, follow
these tips:
•Do not install on external walls.
•Avoid air registers, diusers, vents, and windows.
•Avoid conned areas such as shelves, closed
cabinets, closets, and behind curtains.
•Eliminate and seal all wall and conduit penetrations.
Air migration from wall cavities may alter
temperature readings.
•A thermally-insulated backing should be used when
tting to solid walls (concrete, steel, etc.). ACI part:
A/ROOM-FOAM-PAD
•Do not install near heat sources, eg: lamps,
radiators, direct sunlight, copiers, chimney walls,
walls concealing hot-water pipes.
Refer to the Wiring Instructions (p. 2-3) to make
necessary connections. After wiring, attach the cover
to the base by snapping the top of the cover on rst
and then the bottom. Tighten the cover down, using
the (2) 1/16” Allen screws located in the bottom of
the housing. A 1/16” Hex driver is needed to secure
the cover to the base.

Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 2
Version: 1.0
I0000352
MOUNTING (Continued)
LCD Installation
The LCD Module should then be gently inserted into the 10 pin connector. Tighten the cover down, using
the (2) 1/16” Allen screws located in the bottom of the housing. Take care to make sure the LCD module
lines up with the enclosure LCD window. The LCD module can be bent if adjustments are needed. A 1/16”
Hex driver is needed to secure the cover to the base.
WIRING INSTRUCTIONS
ACI recommends 16 to 26 AWG twisted pair wires or shielded cable for all sensors. Signal wiring must be
run separate from low and high voltage wires (24/120/230 VAC). All ACI thermistors and RTD temperature
sensors are both non-polarity and non-position sensitive. All thermistor type room units are supplied with
a two-pole terminal block and all RTD’s can be supplied with either a two or three-pole terminal block. The
number of wires needed depends on the application. All wiring must comply with all local and National
Electric Codes.
The ACI/LCD must be powered with either a 24
VAC or 9-35 VDC power source. The ACI/LCD uses
a half-wave bridge rectier to convert the AC
voltage to a useable DC voltage. Two separate
cables must be pulled for the ACI/LCD to work
properly. One 2 conductor 18 to 22 AWG shielded
cable for the supply voltage and a second 18 to
22 AWG 3 to 8 conductor shield cable for the
Temperature sensor, Set Point and Override
Outputs to the controller.
FIGURE 3: LAYOUT
TABLE 1: TERMINAL BLOCK CONNECTIONS
TERMINAL
BLOCK
COM
SEN
SET
O/R
O/R
-(LCD)ONLY
+(LCD)ONLY
CONNECTIONS
Thermistor, Override, and Setpoint Common
to controller analog input
Temperature sensor signal to controller
analog input
Temperature set point signal to controller
analog input
Override signal to controller analog input
Override signal common to controller
analog input
24VAC or 9-35VDC Ground/Common
24VAC or 9-35VDC
TABLE 2: COMMUNICATION TERMINAL
BLOCK CONNECTIONS
COM. TERMINAL
BLOCKS
TXD
GND
RXD
CONNECTIONS
RS232 Communication (Transmit)
RS232 Communication (Ground)
RS232 Communication (Receive)
Tip (TXD)
Mid (RXD)
Ring (GND)
RS232 Plug Diagram

TROUBLESHOOTING
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 3
Version: 1.0
I0000352
WIRING INSTRUCTIONS (Continued)
Note: When using a shielded cable, be sure to connect only (1) end of the shield to ground at the controller.
Connecting both ends of the shield to ground may cause a ground loop. When removing the shield from
the sensor end, make sure to properly trim the shield to prevent any chance of shorting.
Note: ACI’s stats are not two-way communicating. Communication jacks allow the user to query and
modify operating parameters of the local room terminal unit from the portable operator’s terminal (laptop).
This feature allows a technician to commission or service the controller via the sensor.
TEMPERATURE DISPLAY ADJUSTMENTS
The Temperature Display may be adjusted by adjusting the ZERO or OFFSET Potentiometer (P2) as shown
on the above diagram. Adjust (P2) until the LCD Display reading matches your controller if necessary. Do
not adjust the SPAN pot (P3)
SETPOINT CONTROL
Adjust slider at bottom of housing for set point control. Slide to right to increase set point temperature. Slide to
left to decrease temperature control. Units can be setup from factory for Direct Acting (resistance increases
when adjusted to right), or Reverse Acting (resistance decreases when adjusted to right).
OVERRIDE ADJUSTMENTS
Override will be set to Override Short Sensor (default). If Short Set Point is needed, remove J4 jumper, and keep
J8 and J3. If a Separate Input or Tenant Override (N/O Contact Closure) is needed, remove all 3 jumpers;
connect both Override wires to the terminal blocks labeled O/R. If a Separate Input or Tenant Override (N/O
Contact Closure) is needed, but keep common ground, remove J4 and J8, and keep J3; Connect only 1
Override wires to the Right O/R terminal block.
FIGURE 4: Override Shunt Selection Switches
PROBLEM
Sensor reading is incorrect
Sensor reads infinity/very high resistance
Sensor reads low resistance
Erratic readings
Display not working
SOLUTION(S)
•Verify sensor wiring to controller is not damaged and has continuity
•Verify sensor or wires are not shorted together
•Verify controller is setup for correct sensor curve
•Disconnect wires from sensor terminal block, tighten terminal block
screws down, and take a resistance (ohm) reading with a multimeter
•Compare the resistance reading to theTemperatureVs Resistance
Curves online: http://www.workaci.com/content/thermistor-curves-0
•Verify proper mounting location to conrm no external factors are
aecting reading
•Sensor or wires are open
•Sensor or wires are shorted together
•Condensation on PCB board
•Bad wire connections
•Check the Power Connections

WARRANTY
The ACI Room Series temperature sensors are covered by ACI’s Five (5)Year Limited Warranty, which is located in
the front of ACI’S SENSORS & TRANSMITTERS CATALOG or can be found on ACI’s website: www.workaci.com.
W.E.E.E. DIRECTIVE
At the end of their useful life the packaging and product should be disposed of via a suitable recycling
centre. Do not dispose of with household waste. Do not burn.
PRODUCT SPECIFICATIONS
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 4
Version: 1.0
I0000352
A/1.8K: 1.8 KΩ nominal (Red/Yellow)
A/3K: 3 KΩ nominal (White/Brown)
A/AN (Type III): 10 KΩ nominal (White/White)
A/AN-BC: 5.238 KΩ nominal (White/Yellow)
A/CP (Type II): 10 KΩ nominal (White/Green)
A/1.8K Series: +/- 0.5 °C @ 25 °C (77 °F)
and (+/-1.0 °C) (+/-1.8 °F)
A/100: 100 Ω nominal
+/- 0.06% Class A (Tolerance Formula: +/- °C = (0.15 °C + (0.002 * |t|))
where |t| is the absolute value ofTemperature above or below 0 °C in °C)
@ 0 °C (32 °F): +/- 0.15 °C (+/- 0.27 °F)
1 KΩ nominal
@ 21.1 °C (70 °F): +/- 1%
1 KΩ nominal (Red/Red)
@ 0 °C (32 °F): +/- 0.4 °C (+/- 0.72 °F)
@ 21.1 °C (70 °F): +/- 0.17 °C (+/- 0.34 °F)
One
1/16”Allen screws (2 qty) / 1/16”Hex Driver
Short Thermistor (Default); Field (Jumper) Selectable
“Dry Contact”Closure (Separate Input);
1.5 to 50 °C (35 to 122 °F) | -40 to 65 °C (-40 to 149 °F)
10 to 95% RH, non-condensing
Screw Terminal Blocks (Non-Polarity Sensitive)
16 (1.31 mm²) to 26 AWG (0.129 mm²)
0.5 Nm (Minimum); 0.6 Nm (Maximum)
“R” Enclosure: ABS Plastic | Beige UL94-HB
A/CSI: 10 KΩ nominal (Green/Yellow)
A/10KS: 10 KΩ nominal (White/Blue)
A/10K-E1: 10 KΩ nominal (Gray/Orange)
A/20K: 20 KΩ nominal (Brown/Blue)
A/100KS: 100 KΩ nominal (Black/Yellow)
A/10K-E1 Series: +/- 0.3 °C (+/- 0.54 °F)
All Else: +/- 0.2 °C (+/- 0.36 °F)
A/1K: 1 KΩ nominal
@ 50 °C (122 °F): +/- 0.25 °C (+/- 0.45 °F)
@ 54.4 °C (130 °F): +/- 0.56 °C (+/- 1. 00°F)
SENSOR NON-SPECIFIC INFORMATION
Number Temperature Sensing Points:
Housing Screw Size / Drive Size:
Override Option:
Operating | Storage Temperature Range:
Operating Humidity Range:
Connections / Wire Size:
Terminal Block Torque Rating:
Enclosure Material | Color:
THERMISTOR
Sensor Output @ 25 °C (77 °F):
(Lead Wire Colors)
*Does not include CL2P
Accuracy @ 0-70 °C (32 - 158 °F):
PLATINUM
Sensor Output @ 0 °C (32 °F):
Accuracy:
BALCO
Sensor Output @ 21.1 °C (70 °F):
Accuracy:
NICKEL
Sensor Output @ 21.1 °C (70 °F):
(Lead Wire Colors)
Accuracy: