aci Room Series Installation instructions

Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 1
Version: 4.0
I0000114
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
PCB: LCD
Phone: [phone]
Website: workaci.com
PRECAUTIONS
• DO NOT RUN THEWIRING IN ANY CONDUIT
WITH LINE VOLTAGE (24/120/230 VAC).
• THE OPTIONAL ACI/LCD MUST BE POWERED
WITH EITHER A 24VAC 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 - see
FIGURE 2 (next page).
For optimal readings, follow these tips:
•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.
•Do not install near heat sources, eg: lamps,
radiators, direct sunlight, copiers, chimney
walls, walls concealing hot-water pipes.
•A thermally-insulated backing should be used
when tting to solid walls (concrete, steel, etc.).
ACI part: A/ROOM-FOAM-PAD
•Do not install on external walls.
•Avoid air registers, diusers, vents, and windows.
Refer to the wiring instructions (p. 1-2) to
make necessary connections.
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. The number of wires needed depends on
the application.

FIGURE 2: MOUNTING
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 2
Version: 4.0
I0000114
FIGURE 3: LAYOUT
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. The
number of wires needed depends on the application.
All wiring must comply with all local and National
Electric Codes.
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.
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 theTemperature sensor, Set Point and
Override Outputs to the controller.
TABLE 1: PCB CONNECTIONS
TERMINAL BLOCKS
SEN
SEN
SET
SET
O/R
O/R
-(LCD only)
+(LCD only)
CONNECTIONS
Temperature sensor signal to controller analog input
Temperature sensor signal common to controller analog input
Temperature set point signal to controller analog input
Temperature set point signal common 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
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)
COVER
#6-32 x 1”
MOUNTING SCREWS
LCD MODULE
Must be unplugged
before the sensor
is mounted
BACKPLATE
OPTIONAL INSULATING
GASKET
CIRCUIT BOARD

TROUBLESHOOTING
PROBLEM
Sensor reading is incorrect
Sensor reads infinity/very high resistance
Sensor reads low resistance
Erratic readings
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 the Temperature Vs 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.
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 3
Version: 4.0
I0000114
WIRING INSTRUCTIONS (Continued)
Note: When wanting to use a Single Common for all (3)
of the Outputs on a Separate Input Sensor, connect one
wire in series with one of the Sensor, Setpoint, and
Override Terminals. These three terminals may then be
tied to the common of the controller with one wire,
while the other three terminals would need to be
connected to the proper Analog Inputs on your
controller.
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.
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). Adjust J3 Jumpers to
change.
*Reference FIGURE 4 (right)
FIGURE 5: COMMON OUTPUT
TO CONTROLLER
O/RSET
ANALOG SIGNAL COMMON TO CONTROLLER
SEN
FIGURE 4: OVERRIDE OPTIONS JUMPER
SETTINGS
OVERRIDE SHORTS
SETPOINT OVERRIDE SHORTS THERMISTOR TENANT OVERRIDE (SEPARATE INPUT)
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.

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.
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 4
Version: 4.0
I0000114
PRODUCT SPECIFICATIONS
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)
“-R2” Enclosure: ABS Plastic | White, UL94-HB
“R” Enclosure: ABS Plastic | Beige UL94-HB
A/CSI: 10 KΩ nominal
A/10KS: 10 KΩ nominal
A/10K-E1: 10 KΩ nominal
A/20K: 20 KΩ nominal
A/100KS: 100 KΩ nominal
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)
A/1.8K: 1.8 KΩ nominal
A/3K: 3 KΩ nominal
A/AN (Type III): 10 KΩ nominal
A/AN-BC: 5.238 KΩ nominal
A/CP (Type II): 10 KΩ nominal
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 of Temperature 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
@ 0 °C (32 °F): +/- 0.4 °C (+/- 0.72 °F)
@ 21.1 °C (70 °F): +/- 0.17 °C (+/- 0.34 °F)
+9 to 35 VDC / 24 VAC (50/60 Hz)
< 4 mA / 0.12 VA
+/- 2°F or +/- 2°C @ 71°F (21.5°C) Typical
°F (Fahreinheit) or °C (Celsius)
50000 Hours Minimum
SENSOR NON-SPECIFIC INFORMATION
Number Temperature Sensing Points:
Housing Screw Size / Drive Size:
Override Option:
Operating Temperature Range:
Storage Temperature Range:
Operating Humidity Range:
Connections | Wire Size:
Terminal Block Torque Rating:
Enclosure Material | Color:
THERMISTOR
Sensor Output @ 25 °C (77 °F):
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):
Accuracy:
LCD SPECIFICATIONS
LCD Display Supply Voltage:
LCD Display Supply Current/VA:
LCD Display Accuracy:
LCD Display Descriptor:
LCD Display Life Expectancy: