aci ACCESS series Installation instructions

Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 1
Version: 5.0
I0000812
FIGURE 1: ENCLOSURE
DIMENSIONS
OUTDOOR SERIES
Installation & Operation Instructions Phone: [phone]
Website: workaci.com
PRECAUTIONS
• DO NOT RUN THE WIRING IN ANY CONDUIT
WITH LINE VOLTAGE (24/120/230 VAC).
GENERAL INFORMATION
The outside air sensor is a single point temperature
sensor that is designed for use with electronic
controllers in commercial heating and cooling
building management systems. It is available with
multiple thermistor or RTD options.
For optimal temperature readings, follow these
tips:
•Avoid mounting to chimney walls, above windows,
above vents, near doors, or dampers.
•Mount at least 1’-2’ (0.3-0.6 m) below eave to
prevent thermal radiation from aecting
performance – see FIGURE 2 (p. 2).
•Mount at least 4’(1.22 m) above ground to prevent
thermal radiation rising up aecting
performance.
•Mount in shade on North side of the structure to
minimize sun exposure. In the Southern
hemisphere the South side of the building is
where the sensor should be mounted.
•The plastic tube that houses the sensor must be
pointed down to avoid debris, water, or ice
potentially aecting sensor performance.
MOUNTING INSTRUCTIONS
Attach the base directly to the wall. Mounting
holes are located at the corners of the housing –
see FIGURE 1 (right). Drill pilot holes for the
mounting screws. Use the enclosure mounting
holes as a guide, or use the dimensions listed
below to measure out. Install the PG11 watertight
fitting supplied with the sensor if not using
conduit. The outer knockout ring (PG 11/16) on
housing should not be removed when using a ½”
NPT conduit fitting.
NEMA -4X (-4X)
EURO (-EH)
BELL BOX (-BB)
3.11"
(78.99 mm)
2.69"
(68.28 mm)
3.94"
(100.1 mm)
2.55"
(64.77 mm) 2.23" (56.71 mm) 1.96" (49.784 mm)
4.00"
(101.57 mm) 2.12" (53.72 mm) 2.69" (68.28 mm)
2.97"
(75.44 mm) 2.29" (58.10 mm) 3.18" (80.77 mm)
4.70"
(119.46 mm) 4.70"
(119.46 mm) 3.77"
(93.98 mm)
4.72"
(119.83 mm)
4.60"
(116.88 mm)

Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 2
Version: 5.0
I0000812
MOUNTING (Continued)
Take care when mounting. Sensors should not be
placed in direct sunlight, or any other potential
heating or cooling sources that could aect
temperature being sensed. Refer to the Wiring
Instructions (p. 2) to make necessary connections.
WIRING INSTRUCTIONS
Open the cover of the enclosure. ACI recommends
16 to 26 AWG twisted pair wires or shielded cables
for all sensors. Signal wiring must be run separate
from low and high voltage wires (24/120/230VAC).
All thermistor sensors are non-polarity. All
thermistor type units are supplied with (2) ying
lead wires – see FIGURE 3 (right).
Connect thermistor/RTD wire leads to controller
analog input wires using wire nuts, terminal
blocks, or crimp style connectors. All wiring must
comply with all local and National Electric Codes.
After wiring, attach the cover to the enclosure.
Conrm gasketed cover is fastened securely in
order to prevent any moisture being introduced
into housing.
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: If the controller requires a (2) wire input for a RTD, connect the (2) common wires (same color)
together. If the controller requires (3) wires, use (3) individual wires.
Recommended 1-2 ft
(0.3-0.6 m) Below Eave
Install Sensor
Downward
Roof
Ground
FIGURE 2: MOUNTED ASSEMBLY
FIGURE 3: TEMPERATURE WIRING
THERMISTOR OR
RTD 2WIRE
WIRE NUT
RTD 3WIRE
SAME COLOR WIRES
WIRE NUT
WIRING FROM CONTROLLER
ANALOG INPUT
WIRING FROM CONTROLLER
ANALOG INPUT
3-WIRE RTD WIRING
2-WIRE THERMISTOR or RTD WIRING

WARRANTY
The ACI Outdoor 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 innity/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: 5.0
I0000812

PRODUCT SPECIFICATIONS
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: [phone] | Website: workaci.com
Page 4
Version: 5.0
I0000812
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/50K: 50KΩ nominal (Brown/Yellow)
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)
@ -40 °C (-40 °F): +/- 0.23ºC (+/- 0.414ºF)
@ 0 °C (32 °F): +/- 0.15 °C (+/- 0.27 °F)
1 KΩ nominal (Orange/Yellow)
@ 21.1 °C (70 °F): +/- 1%
1 KΩ nominal (Red/Red)
@ -40 °C (-40 °F): +/- 1.52 °C (+/- 2.73 °F)
@ 0 °C (32 °F): +/- 0.4 °C (+/- 0.72 °F)
One
-40 to 70 °C (-22 to 158 °F)
-40 to 70 °C (-40 to 158 °F)
10 to 95% RH, non-condensing
”-EH” Enclosure: ABS Plastic with UV Protectant, UL94-V0
”-4X” Enclosure: Polystyrene Plastic, UL94-V2, IP66 (NEMA 4X)
“-BB” Enclosure: Aluminum, IP32 (NEMA 3R)
14” (35.6 cm) / 22 AWG (0.65 mm)
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
@ 70 °C (158 °F): +/- 0.29 °C (+/- 0.53 °F)
@ 21.1 °C (70 °F): +/- 0.17 °C (+/- 0.34 °F)
@ 54.4 °C (130 °F): +/- 0.56 °C (+/- 1. 00°F)
SENSOR NON-SPECIFIC INFORMATION
Number Sensing Points:
Operating Temperature Range:
Storage Temperature Range:
Operating Humidity Range:
Enclosure Specications:
(Material, Flammability,
NEMA/IP Ratings)
Lead Length | Conductor Size:
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):
(Lead Wire Colors)
Accuracy:
NICKEL
Sensor Output @ 21.1 °C (70 °F):
(Lead Wire Colors)
Accuracy: