Sensor Replacement, Start-Up Mode | Optima Company EL-1500 manual

Sensor Replacement

NOTE: The EL-1500 Series OPTIMA Sensor (a two-wire unit) replaces the older EL-150 Series Sensors (either three-wire or four-wire units). Refer to the Wiring History shown below.

IMPORTANT

•Be certain to disconnect the 24 VAC power supply either at the transformer or the fuse box. Failure to disable the power supply can result in damage to the EL-1500 series Sensor.

•The Solenoid Operator must be removed from the Valve on exposed urinal installations. Do not damage the O-ring seal on the operator assembly.

Figure 1A

	ORIENTATION ARROW
Figure 1B	“TO VALVE”
	CONNECTION

WIRING DIAGRAM

	120 VAC
EL-1500 SERIES	24 VAC
SENSOR

OVERRIDE

SWITCH ‡

COIL WIRE

24 VAC COIL

UNIT #1

EL-1500 SERIES

SENSOR

OVERRIDE

SWITCH ‡

UNIT #2

COIL WIRE 24 VAC COIL THRU #10

(IF USED)

Figure 2

‡ OVERRIDE SWITCH USED WITH WATER CLOSETS ONLY

NOTE: A MAXIMUM OF TEN (10) SENSOR FLUSHOMETER UNITS CAN OPERATE FROM ONE (1) SLOAN EL-154 TRANSFORMER. CLASS 2 UL LISTED, 48 VA (MIN.) AT 24 VAC, PLATE MOUNTED.

“24 VAC IN”

CONNECTION

1.Remove the Cover Plate (for Wall Box Installation, remove Cover Panel) and old Sensor from the wall installation. Use a 5/64" hex wrench to remove the Cover Plate Screws (or #8 drilled spanner head screwdriver EL-318to remove the vandal-resistant screws from the Wall Box Cover Panel.)

2.Connect one 24 VAC lead to the Sensor terminal labeled “24 VAC IN” (see Figure 1B).

•On an old three-wire EL-150series Sensor, this wire was connected to the BLACK Sensor lead.

•On an old four-wire EL-150series Sensor, this wire was connected to the BROWN Sensor lead.

3.Connect one Solenoid lead to the Sensor terminal labeled “TO VALVE” (see Figure 1B).

•On an old three-wire or four-wire EL-150series Sensor, this wire was connected to the RED Sensor lead.

4. Connect the remaining 24 VAC lead to the remaining Solenoid lead.

•On an old three-wire EL-150series Sensor, these wires were connected to the WHITE Sensor leads.

•On an old four-wire EL-150series Sensor, these wires were connected to the YELLOW and BLUE (or in very early models, the inner BROWN).

5.On Water Closet installations only, connect the Override Button (shown as the Override Switch in Wiring Diagram) parallel to the EL-1500-LSensor.

6.Reinstall the Sensor with the orientation arrow on the Lens side of the Sensor pointing UP (see Figure 1A). Replace the Cover Plate (or Wall Box Panel) and tighten the Cover Plate (or Wall Box Panel) Screws.

7.Reconnect the 24 VAC power supply at the transformer or the fuse box.

Start-Up Mode

NOTE: It is important that only permanent targets are present at this time.

The self-adaptive sensor automatically adjusts to the surrounding environment when the 24 volt supply is activated. No manual adjustment is required. The start-up cycle completes in approximately five (5) minutes. A continuous red light visible in the sensor window indicates the Start-up Mode. if the red light flashes, the Sensor detects a target. Unless this target is a permanent fixture in the Sensor’s environment (i.e., a wall or stall door), it must be removed from the view of the Sensor. If a target is permanent, the Sensor will adapt itself around this target. In this case, the Start-Up Mode may take up to 10 (ten) minutes. When the Start-Up cycle is complete, the red light will no longer be visible in the Sensor Window.

NOTE: If the 24 volt power supply is ever interrupted for longer than fifteen (15) seconds, the start-up mode begins automatically when power is restored.

Incorrect wiring or a short in the 24 volt power supply will initiate a warning signal in the Sensor Window. The visible light flashes a continuous “S-O-S” signal: three (3) slow, three (3) fast, and three (3) slow flashes.

EL-150 Wiring History

for 4-wire and 3-wire sensors

Release date 03/09/78

Brown Red

BrownRed

Release date 08/11/83

Brown	Red
Brown	Red with
	Red with
	Yellow or
	all Yellow

Release date 02/02/87

Blue Red

BrownYellow

Release date 12/12/90

Brown

White

Black