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
I0000110
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
A/RSO-LCD-FAN
Phone: [phone]
Website: workaci.com
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.
GENERAL INFORMATION
The A/RSO-LCD-FAN is a system specic sensor that is
polarity sensitive but not position sensitive. This unit
may incorporate any ACI thermistor or RTD type
sensor. This unit is avalible in many dierent
congurations including Room w/ Override, Room
w/ Setpoint, Room w/ Setpoint and Override, and
Override and LCD.
MOUNTING INSTRUCTIONS
Separate the cover from the base. 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 (p. 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
*Reference FIGURE 3 (next page)
•Do not install near heat sources, eg: lamps,
radiators, direct sunlight, copiers, chimney walls,
walls concealing
MOUNTING (Continued)
hot-water pipes.
Refer to the Wiring Instructions 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.
Additional Mounting Instructions for
optional ACI/LCD
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 to either the drywall or over a
standard 2” x 4” Junction Box using the
mounting hardware provided. The LCD Module
should then be gently inserted into the 10 pin
connector. The cover may now be placed onto
the unit and tightened down using the (2) Allen
screws at the bottom of the housing.

FIGURE 2: MOUNTING
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 2
Version: 1.0
I0000110
COVER
#6-32 x 1”
MOUNTING SCREWS
LCD MODULE
Must be unplugged before
the sensor is mounted
BACKPLATE
OPTIONAL INSULATING
GASKET
CIRCUIT BOARD
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 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.
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 2 to 4 conductor shield cable for theTemperature sensor, Set Point and
Override Outputs to the controller.
TERMINAL
BLOCKS
SET
SEN
+ FAN
- FAN
- (LCD ONLY)
+ (LCD ONLY)
CONNECTIONS
Temperature set point signal
to controller analog input
Temperature sensor and
Override signal to controller
analog input
Fan Speed switch output to
controller analog input
24VAC or 9-35VDC
Ground/Common,
Temperature sensor, Set point
and Override signal common
to controller analog inpute
24VAC or 9-35VDC
FIGURE 4: LAYOUT

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.
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: 1.0
I0000110
Note: If J1 is removed, the Fan (-) terminal and the LCD (-) terminal will be isolated.
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).
FAN SPEED ADJUSTMENTS
Adjust fan speed by selecting the correct position of the Fan Speed Selector switch. All fan speed
resistances should be measured from the -FAN Common to the +FAN terminal block.

PRODUCT SPECIFICATIONS
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 4
Version: 1.0
I0000110
One
1/16”Allen screws (2 qty) / 1/16”Hex Driver
Short Thermistor (Default)
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
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)
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)
+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
THERMISTOR
Sensor Output @ 25 °C (77 °F):
Accuracy @ 0-70 °C (32 - 158 °F):
PLATINUM
Sensor Output @ 0 °C (32 °F):
Accuracy:
LCD SPECIFICATIONS
LCD Display Supply Voltage:
LCD Display Supply Current/VA:
LCD Display Accuracy:
LCD Display Descriptor:
LCD Display Life Expectancy:
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: