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Automation Components, Inc.

2305 Pleasant View Road  |  Middleton, WI 53562

Phone:

 1-888-967-5224  |  

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:

 1-888-967-5224

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) off 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, diffusers, vents, and windows.

Avoid confined 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 

fitting 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 first 

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. 

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