Intermatic IOS-DDR Manual Download Page 1

Ratings:

Input Voltage: 120/277 VAC 50/60 Hz 

Tungsten/ Incandescent: 800 W @ 120 VAC

Fluorescent/Ballast: 800 VA @ 120 VAC, 1600 VA @ 277 VAC 

Electronic Ballast/LED: 800 VA @ 120 VAC, 1600 VA @ 277 VAC

Resistive: 800 W

Motor: 1/4 HP @ 120 VAC

Time Delay: 15 Sec to 30 Min

Light Level: 30 Lux--Daylight

Operation Temperature: 32˚F--131˚F / 0-55˚C

No minimum Load required.

INSTALLATION INSTRUCTIONS
Description:

The passive infrared sensors work by detecting the difference between heat emitted from the human body in motion and the background space. 

The sensor switch can turn a load ON and hold it as long as the sensor detects occupancy. After no motion is detected for the set time delay, the 

load turns OFF automatically. The IOS-DDR has two relays (equal to Dual Load Switch).

Coverage Area:

The coverage range of the sensor switch is specified and illustrated in Figure 1. Large objects and some transparent barriers like glass windows 

will obstruct the sensor’s view and prevent detection, causing the light to turn off even though someone is still in the detection area.

LOCATION/MOUNTING

Since this device responds to temperature changes, care should be taken when mounting the device. DO NOT mount directly above a heat source, 

in a location where hot or cold drafts will blow directly on the sensor, or where unintended motion will be within sensor’s field-of-view.

INSTALLATION

  1.  Connect lead wires as shown in WIRING DIAGRAM (see Figure 2): Black lead to Line 1 (Hot), Blue lead to 

Line 2 (Hot), Red lead to Primary Load wire, Brown Lead to Secondary Load, Green lead to Ground.

  2. Gently position wires in wall box, attach sensor switch to the box.

  3. Mount device “TOP” up. 

  4. Restore power at circuit breaker or fuse, wait 

three

 minutes.

  5. Remove the small cover plate. (Illustrated as Figure 3.)

  6.  Locate the adjustment knobs on the control panel to perform test and adjustments.  

(Illustrated as Figure 4.)

  7. Replace the small cover plate after testing and adjusting.

  8. Attach the wallplate.

NOTE: If twist on wire connector is provided, use to join one supply conductor with one 16 AWG device control 

lead.

ADJUSTMENT

Band Switch

Time Delay Knob

Default position: 15 Seconds (Test mode)

Adjustable: from 15 Seconds to 30 Minutes (clockwise)

Sensor Sensitivity Range Knob

Default position: Center at 65%

Adjustable: 30% (Position 1) to 100% (Position 4)

Note: Turn clockwise for larger rooms. Turn counter clockwise to avoid false alerts in smaller rooms or near 

doorway or heat source.

Back to factory default (daylight):

Set the Band Switch to VACD, press and hold the primary Manual ON/OFF Button for 6 seconds until the Load turns 

on, continue holding the primary button for another 5 seconds until the Load turns off, then release the primary 

button and set the Band Switch to OCCD or OCCS Mode, this confirms that the sensor switch goes back to factory 

default.

OPERATION

The Sensor Switch is programmed independently for either Occupancy Mode or Vacancy Mode as referred to 

the Band Switch position under the control panel cover. Vacancy mode is also known as “Manual ON Occupancy 

Mode”. There is a 5 seconds re-trigger delay between ON and OFF.

Turning On the load under Occupancy Mode

Load to be Automatic ON once occupancy is detected.

Turning On the load under Vacancy Mode

Manual ON/OFF Button has to be pushed to turn ON the Load.

Automatic Turning Off the load

Under all modes, the Sensor keeps the Load(s) On until no motion is detected for the set time delay, load(s) will 

turn OFF automatically.

Manual Turn Off One Load

Another Load stays ON until no motion is detected and the set time delay. The manually turned OFF Load stays OFF 

all the time.

Occupancy/Vacancy

(2-IN-1) 

Sensor Switch

Dual Load

MODEL: IOS-DDR

Risk of Fire, Electrical Shock or Personal Injury

 

•  Turn OFF power at circuit breaker or fuse and test that the power is OFF before wiring.

  •  To be installed and/or used in accordance with appropriate electrical codes and regulations.

  •  If you are not sure about any part of these instructions, consult a qualified electrician.

  •  Use this device only with copper or copper clad wire. 
 • 

INDOOR USE ONLY

WARNING

Figure 3

Figure 4

Figure 1

Maximum: 1200 sq.ft.

40'

Top View

20'

10'

20'

10'

20'

5'

4'

180˚ Field of View

Wiring Diagram

Figure 2

                     

Dual Power Source

Load

Red

Red

Ground Green

Primary

Load

Brown Secondary

Neutral

Line 1  Black

Line 2  Blue

Neutral

                       

Single Power Source

Load

Red

Red

Ground Green

Primary

Load

Brown Secondary

Line   Black

 Blue

Neutral

Control Panel Cover

LED Indicator

OCCD  OCCS  VACD

TIME

TEST

10

20

30

Min

Min

Min

RANGE

Mounting Yoke

Fresnel Lens

2

3

4

1

OCCD OCCS VACD

(Push Button)

Primary Load Secondary Load

Mode

Position

Description

React to the pushbutton

OCCD

LEFT

Occupancy Mode: Dual Load Automatically ON, 

Automatically OFF after set time delay both Loads 

together

Manually toggles On / Off 

the loads.

OCCS

Center

Primary Load

Occupancy Mode: Automatic ON, Automatic OFF 

after set time delay.

Secondary Load

VCC Mode: Secondary Load Manual ON,  

Automatic OFF after set time delay.

Manually toggles On/Off the 

loads.

VACD

RIGHT

Vacancy Mode: Manual ON only.

Automatic OFF after set time delay

Manually toggles On/Off the 

loads.

IOS-DDR

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